External/libvirt
1
0
Fork 0
mirror of https://gitlab.com/libvirt/libvirt.git synced 2025-01-10 14:57:42 +00:00
Code Issues Packages Projects Releases Wiki Activity
9f6151f50d
libvirt/src/qemu/qemu_driver.c
Peter Krempa 837b637f40 qemuDomainBlocksStatsGather: Remove pre-blockdev code paths 
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-08-11 15:21:09 +02:00

20991 lines
655 KiB
C
Raw Blame History

/*
* qemu_driver.c: core driver methods for managing qemu guests
*
* Copyright (C) 2006-2019 Red Hat, Inc.
* Copyright (C) 2006 Daniel P. Berrange
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <sys/types.h>
#include <poll.h>
#include <sys/time.h>
#include <dirent.h>
#include <unistd.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include "qemu_driver.h"
#include "qemu_agent.h"
#include "qemu_alias.h"
#include "qemu_block.h"
#include "qemu_conf.h"
#include "qemu_capabilities.h"
#include "qemu_command.h"
#include "qemu_hostdev.h"
#include "qemu_hotplug.h"
#include "qemu_monitor.h"
#include "qemu_process.h"
#include "qemu_migration.h"
#include "qemu_migration_params.h"
#include "qemu_blockjob.h"
#include "qemu_security.h"
#include "qemu_checkpoint.h"
#include "qemu_backup.h"
#include "qemu_namespace.h"
#include "qemu_saveimage.h"
#include "qemu_snapshot.h"
#include "qemu_validate.h"
#include "virerror.h"
#include "virlog.h"
#include "datatypes.h"
#include "virbuffer.h"
#include "virhostcpu.h"
#include "virhostmem.h"
#include "virnetdevtap.h"
#include "virnetdevopenvswitch.h"
#include "capabilities.h"
#include "viralloc.h"
#include "viruuid.h"
#include "domain_conf.h"
#include "domain_audit.h"
#include "domain_cgroup.h"
#include "domain_driver.h"
#include "domain_postparse.h"
#include "domain_validate.h"
#include "virpci.h"
#include "virpidfile.h"
#include "virprocess.h"
#include "libvirt_internal.h"
#include "virxml.h"
#include "cpu/cpu.h"
#include "virsysinfo.h"
#include "virhook.h"
#include "storage_source_conf.h"
#include "storage_file_probe.h"
#include "storage_source.h"
#include "virfile.h"
#include "virfdstream.h"
#include "configmake.h"
#include "virthreadpool.h"
#include "locking/lock_manager.h"
#include "locking/domain_lock.h"
#include "virkeycode.h"
#include "virnodesuspend.h"
#include "virtime.h"
#include "virtypedparam.h"
#include "virbitmap.h"
#include "virstring.h"
#include "viraccessapicheck.h"
#include "viraccessapicheckqemu.h"
#include "virhostdev.h"
#include "domain_capabilities.h"
#include "vircgroup.h"
#include "virperf.h"
#include "virnuma.h"
#include "netdev_bandwidth_conf.h"
#include "virdomainsnapshotobjlist.h"
#include "virenum.h"
#include "virdomaincheckpointobjlist.h"
#include "virutil.h"
#include "backup_conf.h"
#define VIR_FROM_THIS VIR_FROM_QEMU
VIR_LOG_INIT("qemu.qemu_driver");
#define QEMU_NB_MEM_PARAM 3
#define QEMU_NB_BLOCK_IO_TUNE_BASE_PARAMS 6
#define QEMU_NB_BLOCK_IO_TUNE_MAX_PARAMS 7
#define QEMU_NB_BLOCK_IO_TUNE_LENGTH_PARAMS 6
#define QEMU_NB_BLOCK_IO_TUNE_GROUP_PARAMS 1
#define QEMU_NB_BLOCK_IO_TUNE_ALL_PARAMS (QEMU_NB_BLOCK_IO_TUNE_BASE_PARAMS + \
QEMU_NB_BLOCK_IO_TUNE_MAX_PARAMS + \
QEMU_NB_BLOCK_IO_TUNE_GROUP_PARAMS + \
QEMU_NB_BLOCK_IO_TUNE_LENGTH_PARAMS)
#define QEMU_NB_NUMA_PARAM 2
#define QEMU_GUEST_VCPU_MAX_ID 4096
#define QEMU_NB_BLKIO_PARAM 6
#define QEMU_NB_BANDWIDTH_PARAM 7
VIR_ENUM_DECL(qemuDumpFormat);
VIR_ENUM_IMPL(qemuDumpFormat,
VIR_DOMAIN_CORE_DUMP_FORMAT_LAST,
"elf",
"kdump-zlib",
"kdump-lzo",
"kdump-snappy",
"win-dmp",
);
static void qemuProcessEventHandler(void *data, void *opaque);
static int qemuStateCleanup(void);
static int qemuDomainObjStart(virConnectPtr conn,
virQEMUDriver *driver,
virDomainObj *vm,
unsigned int flags,
virDomainAsyncJob asyncJob);
static int qemuDomainManagedSaveLoad(virDomainObj *vm,
void *opaque);
static virQEMUDriver *qemu_driver;
/* Looks up the domain object from snapshot and unlocks the
* driver. The returned domain object is locked and ref'd and the
* caller must call virDomainObjEndAPI() on it. */
static virDomainObj *
qemuDomObjFromSnapshot(virDomainSnapshotPtr snapshot)
{
return qemuDomainObjFromDomain(snapshot->domain);
}
static int
qemuAutostartDomain(virDomainObj *vm,
void *opaque)
{
virQEMUDriver *driver = opaque;
int flags = 0;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
int ret = -1;
if (cfg->autoStartBypassCache)
flags |= VIR_DOMAIN_START_BYPASS_CACHE;
virObjectLock(vm);
virObjectRef(vm);
virResetLastError();
if (vm->autostart &&
!virDomainObjIsActive(vm)) {
if (qemuProcessBeginJob(vm, VIR_DOMAIN_JOB_OPERATION_START,
flags) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to start job on VM '%s': %s"),
vm->def->name, virGetLastErrorMessage());
goto cleanup;
}
if (qemuDomainObjStart(NULL, driver, vm, flags,
VIR_ASYNC_JOB_START) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to autostart VM '%s': %s"),
vm->def->name, virGetLastErrorMessage());
}
qemuProcessEndJob(vm);
}
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static void
qemuAutostartDomains(virQEMUDriver *driver)
{
virDomainObjListForEach(driver->domains, false, qemuAutostartDomain, driver);
}
static int
qemuSecurityChownCallback(const virStorageSource *src,
uid_t uid,
gid_t gid)
{
int save_errno = 0;
int ret = -1;
int rv;
g_autoptr(virStorageSource) cpy = NULL;
if (virStorageSourceIsLocalStorage(src))
return -3;
if ((rv = virStorageSourceSupportsSecurityDriver(src)) <= 0)
return rv;
if (!(cpy = virStorageSourceCopy(src, false)))
return -1;
/* src file init reports errors, return -2 on failure */
if (virStorageSourceInit(cpy) < 0)
return -2;
ret = virStorageSourceChown(cpy, uid, gid);
save_errno = errno;
virStorageSourceDeinit(cpy);
errno = save_errno;
return ret;
}
static int
qemuSecurityInit(virQEMUDriver *driver)
{
char **names;
virSecurityManager *mgr = NULL;
virSecurityManager *stack = NULL;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
unsigned int flags = 0;
if (cfg->securityDefaultConfined)
flags |= VIR_SECURITY_MANAGER_DEFAULT_CONFINED;
if (cfg->securityRequireConfined)
flags |= VIR_SECURITY_MANAGER_REQUIRE_CONFINED;
if (driver->privileged)
flags |= VIR_SECURITY_MANAGER_PRIVILEGED;
if (cfg->securityDriverNames &&
cfg->securityDriverNames[0]) {
names = cfg->securityDriverNames;
while (names && *names) {
if (!(mgr = qemuSecurityNew(*names,
QEMU_DRIVER_NAME,
flags)))
goto error;
if (!stack) {
if (!(stack = qemuSecurityNewStack(mgr)))
goto error;
} else {
if (qemuSecurityStackAddNested(stack, mgr) < 0)
goto error;
}
mgr = NULL;
names++;
}
} else {
if (!(mgr = qemuSecurityNew(NULL,
QEMU_DRIVER_NAME,
flags)))
goto error;
if (!(stack = qemuSecurityNewStack(mgr)))
goto error;
mgr = NULL;
}
if (driver->privileged) {
if (cfg->dynamicOwnership)
flags |= VIR_SECURITY_MANAGER_DYNAMIC_OWNERSHIP;
if (virBitmapIsBitSet(cfg->namespaces, QEMU_DOMAIN_NS_MOUNT))
flags |= VIR_SECURITY_MANAGER_MOUNT_NAMESPACE;
if (!(mgr = qemuSecurityNewDAC(QEMU_DRIVER_NAME,
cfg->user,
cfg->group,
flags,
qemuSecurityChownCallback)))
goto error;
if (!stack) {
if (!(stack = qemuSecurityNewStack(mgr)))
goto error;
} else {
if (qemuSecurityStackAddNested(stack, mgr) < 0)
goto error;
}
mgr = NULL;
}
driver->securityManager = stack;
return 0;
error:
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Failed to initialize security drivers"));
virObjectUnref(stack);
virObjectUnref(mgr);
return -1;
}
static int
qemuDomainSnapshotLoad(virDomainObj *vm,
void *data)
{
char *baseDir = (char *)data;
g_autofree char *snapDir = NULL;
g_autoptr(DIR) dir = NULL;
struct dirent *entry;
virDomainMomentObj *snap = NULL;
virDomainMomentObj *current = NULL;
bool cur;
unsigned int flags = (VIR_DOMAIN_SNAPSHOT_PARSE_REDEFINE |
VIR_DOMAIN_SNAPSHOT_PARSE_INTERNAL);
int ret = -1;
int direrr;
qemuDomainObjPrivate *priv;
virObjectLock(vm);
priv = vm->privateData;
snapDir = g_strdup_printf("%s/%s", baseDir, vm->def->name);
VIR_INFO("Scanning for snapshots for domain %s in %s", vm->def->name,
snapDir);
if (virDirOpenIfExists(&dir, snapDir) <= 0)
goto cleanup;
while ((direrr = virDirRead(dir, &entry, NULL)) > 0) {
g_autoptr(virDomainSnapshotDef) snapdef = NULL;
g_autofree char *xmlStr = NULL;
g_autofree char *fullpath = NULL;
/* NB: ignoring errors, so one malformed config doesn't
kill the whole process */
VIR_INFO("Loading snapshot file '%s'", entry->d_name);
fullpath = g_strdup_printf("%s/%s", snapDir, entry->d_name);
if (virFileReadAll(fullpath, 1024*1024*1, &xmlStr) < 0) {
/* Nothing we can do here, skip this one */
virReportSystemError(errno,
_("Failed to read snapshot file %s"),
fullpath);
continue;
}
snapdef = virDomainSnapshotDefParseString(xmlStr,
qemu_driver->xmlopt,
priv->qemuCaps, &cur,
flags);
if (snapdef == NULL) {
/* Nothing we can do here, skip this one */
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to parse snapshot XML from file '%s'"),
fullpath);
continue;
}
snap = virDomainSnapshotAssignDef(vm->snapshots, &snapdef);
if (cur && snap) {
if (current)
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Too many snapshots claiming to be current for domain %s"),
vm->def->name);
current = snap;
}
}
if (direrr < 0)
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to fully read directory %s"),
snapDir);
virDomainSnapshotSetCurrent(vm->snapshots, current);
if (virDomainSnapshotUpdateRelations(vm->snapshots) < 0)
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Snapshots have inconsistent relations for domain %s"),
vm->def->name);
/* FIXME: qemu keeps internal track of snapshots. We can get access
* to this info via the "info snapshots" monitor command for running
* domains, or via "qemu-img snapshot -l" for shutoff domains. It would
* be nice to update our internal state based on that, but there is a
* a problem. qemu doesn't track all of the same metadata that we do.
* In particular we wouldn't be able to fill in the <parent>, which is
* pretty important in our metadata.
*/
virResetLastError();
ret = 0;
cleanup:
virObjectUnlock(vm);
return ret;
}
static int
qemuDomainCheckpointLoad(virDomainObj *vm,
void *data)
{
char *baseDir = (char *)data;
g_autofree char *chkDir = NULL;
g_autoptr(DIR) dir = NULL;
struct dirent *entry;
virDomainCheckpointDef *def = NULL;
virDomainMomentObj *chk = NULL;
virDomainMomentObj *current = NULL;
unsigned int flags = VIR_DOMAIN_CHECKPOINT_PARSE_REDEFINE;
int ret = -1;
int direrr;
qemuDomainObjPrivate *priv;
virObjectLock(vm);
priv = vm->privateData;
chkDir = g_strdup_printf("%s/%s", baseDir, vm->def->name);
VIR_INFO("Scanning for checkpoints for domain %s in %s", vm->def->name,
chkDir);
if (virDirOpenIfExists(&dir, chkDir) <= 0)
goto cleanup;
while ((direrr = virDirRead(dir, &entry, NULL)) > 0) {
g_autofree char *xmlStr = NULL;
g_autofree char *fullpath = NULL;
/* NB: ignoring errors, so one malformed config doesn't
kill the whole process */
VIR_INFO("Loading checkpoint file '%s'", entry->d_name);
fullpath = g_strdup_printf("%s/%s", chkDir, entry->d_name);
if (virFileReadAll(fullpath, 1024*1024*1, &xmlStr) < 0) {
/* Nothing we can do here, skip this one */
virReportSystemError(errno,
_("Failed to read checkpoint file %s"),
fullpath);
continue;
}
if (!(def = virDomainCheckpointDefParseString(xmlStr,
qemu_driver->xmlopt,
priv->qemuCaps,
flags)))
continue;
chk = virDomainCheckpointAssignDef(vm->checkpoints, def);
if (chk == NULL)
virObjectUnref(def);
}
if (direrr < 0)
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to fully read directory %s"),
chkDir);
if (virDomainCheckpointUpdateRelations(vm->checkpoints, &current) < 0)
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Checkpoints have inconsistent relations for domain %s"),
vm->def->name);
virDomainCheckpointSetCurrent(vm->checkpoints, current);
virResetLastError();
ret = 0;
cleanup:
virObjectUnlock(vm);
return ret;
}
static int
qemuDomainNetsRestart(virDomainObj *vm,
void *data G_GNUC_UNUSED)
{
size_t i;
virDomainDef *def = vm->def;
virObjectLock(vm);
for (i = 0; i < def->nnets; i++) {
virDomainNetDef *net = def->nets[i];
if (virDomainNetGetActualType(net) == VIR_DOMAIN_NET_TYPE_DIRECT &&
virDomainNetGetActualDirectMode(net) == VIR_NETDEV_MACVLAN_MODE_VEPA) {
VIR_DEBUG("VEPA mode device %s active in domain %s. Reassociating.",
net->ifname, def->name);
ignore_value(virNetDevMacVLanRestartWithVPortProfile(net->ifname,
&net->mac,
virDomainNetGetActualDirectDev(net),
def->uuid,
virDomainNetGetActualVirtPortProfile(net),
VIR_NETDEV_VPORT_PROFILE_OP_CREATE));
}
}
virObjectUnlock(vm);
return 0;
}
static int
qemuDomainFindMaxID(virDomainObj *vm,
void *data)
{
int *driver_maxid = data;
if (vm->def->id > *driver_maxid)
*driver_maxid = vm->def->id;
return 0;
}
/**
* qemuStateInitialize:
*
* Initialization function for the QEMU daemon
*/
static int
qemuStateInitialize(bool privileged,
const char *root,
virStateInhibitCallback callback,
void *opaque)
{
g_autofree char *driverConf = NULL;
virQEMUDriverConfig *cfg;
uid_t run_uid = -1;
gid_t run_gid = -1;
bool autostart = true;
size_t i;
const char *defsecmodel = NULL;
g_autofree virSecurityManager **sec_managers = NULL;
g_autoptr(virIdentity) identity = virIdentityGetCurrent();
qemu_driver = g_new0(virQEMUDriver, 1);
qemu_driver->lockFD = -1;
if (virMutexInit(&qemu_driver->lock) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("cannot initialize mutex"));
VIR_FREE(qemu_driver);
return VIR_DRV_STATE_INIT_ERROR;
}
qemu_driver->inhibitCallback = callback;
qemu_driver->inhibitOpaque = opaque;
qemu_driver->privileged = privileged;
qemu_driver->hostarch = virArchFromHost();
if (root != NULL)
qemu_driver->embeddedRoot = g_strdup(root);
if (!(qemu_driver->domains = virDomainObjListNew()))
goto error;
/* Init domain events */
qemu_driver->domainEventState = virObjectEventStateNew();
if (!qemu_driver->domainEventState)
goto error;
/* read the host sysinfo */
if (privileged)
qemu_driver->hostsysinfo = virSysinfoRead();
if (!(qemu_driver->config = cfg = virQEMUDriverConfigNew(privileged, root)))
goto error;
driverConf = g_strdup_printf("%s/qemu.conf", cfg->configBaseDir);
if (virQEMUDriverConfigLoadFile(cfg, driverConf, privileged) < 0)
goto error;
if (virQEMUDriverConfigValidate(cfg) < 0)
goto error;
if (virQEMUDriverConfigSetDefaults(cfg) < 0)
goto error;
if (g_mkdir_with_parents(cfg->stateDir, 0777) < 0) {
virReportSystemError(errno, _("Failed to create state dir %s"),
cfg->stateDir);
goto error;
}
if (g_mkdir_with_parents(cfg->libDir, 0777) < 0) {
virReportSystemError(errno, _("Failed to create lib dir %s"),
cfg->libDir);
goto error;
}
if (g_mkdir_with_parents(cfg->cacheDir, 0777) < 0) {
virReportSystemError(errno, _("Failed to create cache dir %s"),
cfg->cacheDir);
goto error;
}
if (g_mkdir_with_parents(cfg->saveDir, 0777) < 0) {
virReportSystemError(errno, _("Failed to create save dir %s"),
cfg->saveDir);
goto error;
}
if (g_mkdir_with_parents(cfg->snapshotDir, 0777) < 0) {
virReportSystemError(errno, _("Failed to create snapshot dir %s"),
cfg->snapshotDir);
goto error;
}
if (g_mkdir_with_parents(cfg->checkpointDir, 0777) < 0) {
virReportSystemError(errno, _("Failed to create checkpoint dir %s"),
cfg->checkpointDir);
goto error;
}
if (g_mkdir_with_parents(cfg->autoDumpPath, 0777) < 0) {
virReportSystemError(errno, _("Failed to create dump dir %s"),
cfg->autoDumpPath);
goto error;
}
if (g_mkdir_with_parents(cfg->channelTargetDir, 0777) < 0) {
virReportSystemError(errno, _("Failed to create channel target dir %s"),
cfg->channelTargetDir);
goto error;
}
if (g_mkdir_with_parents(cfg->nvramDir, 0777) < 0) {
virReportSystemError(errno, _("Failed to create nvram dir %s"),
cfg->nvramDir);
goto error;
}
if (g_mkdir_with_parents(cfg->memoryBackingDir, 0777) < 0) {
virReportSystemError(errno, _("Failed to create memory backing dir %s"),
cfg->memoryBackingDir);
goto error;
}
if (g_mkdir_with_parents(cfg->slirpStateDir, 0777) < 0) {
virReportSystemError(errno, _("Failed to create slirp state dir %s"),
cfg->slirpStateDir);
goto error;
}
if (virDirCreate(cfg->dbusStateDir, 0770, cfg->user, cfg->group,
VIR_DIR_CREATE_ALLOW_EXIST) < 0) {
virReportSystemError(errno, _("Failed to create dbus state dir %s"),
cfg->dbusStateDir);
goto error;
}
if ((qemu_driver->lockFD =
virPidFileAcquire(cfg->stateDir, "driver", false, getpid())) < 0)
goto error;
qemu_driver->qemuImgBinary = virFindFileInPath("qemu-img");
if (!(qemu_driver->lockManager =
virLockManagerPluginNew(cfg->lockManagerName ?
cfg->lockManagerName : "nop",
"qemu",
cfg->configBaseDir,
0)))
goto error;
if (cfg->macFilter) {
if (!(qemu_driver->ebtables = ebtablesContextNew("qemu"))) {
virReportSystemError(errno,
_("failed to enable mac filter in '%s'"),
__FILE__);
goto error;
}
if (ebtablesAddForwardPolicyReject(qemu_driver->ebtables) < 0)
goto error;
}
/* Allocate bitmap for remote display port reservations. We cannot
* do this before the config is loaded properly, since the port
* numbers are configurable now */
if ((qemu_driver->remotePorts =
virPortAllocatorRangeNew(_("display"),
cfg->remotePortMin,
cfg->remotePortMax)) == NULL)
goto error;
if ((qemu_driver->webSocketPorts =
virPortAllocatorRangeNew(_("webSocket"),
cfg->webSocketPortMin,
cfg->webSocketPortMax)) == NULL)
goto error;
if ((qemu_driver->migrationPorts =
virPortAllocatorRangeNew(_("migration"),
cfg->migrationPortMin,
cfg->migrationPortMax)) == NULL)
goto error;
if (qemuSecurityInit(qemu_driver) < 0)
goto error;
if (!(qemu_driver->hostdevMgr = virHostdevManagerGetDefault()))
goto error;
if (qemuMigrationDstErrorInit(qemu_driver) < 0)
goto error;
/* qemu-5.1 and older requires use of '-enable-fips' flag when the host
* is in FIPS mode. We store whether FIPS is enabled */
if (virFileExists("/proc/sys/crypto/fips_enabled")) {
g_autofree char *buf = NULL;
if (virFileReadAll("/proc/sys/crypto/fips_enabled", 10, &buf) > 0)
qemu_driver->hostFips = STREQ(buf, "1\n");
}
if (privileged) {
g_autofree char *channeldir = NULL;
if (chown(cfg->libDir, cfg->user, cfg->group) < 0) {
virReportSystemError(errno,
_("unable to set ownership of '%s' to user %d:%d"),
cfg->libDir, (int)cfg->user,
(int)cfg->group);
goto error;
}
if (chown(cfg->saveDir, cfg->user, cfg->group) < 0) {
virReportSystemError(errno,
_("unable to set ownership of '%s' to %d:%d"),
cfg->saveDir, (int)cfg->user,
(int)cfg->group);
goto error;
}
if (chown(cfg->snapshotDir, cfg->user, cfg->group) < 0) {
virReportSystemError(errno,
_("unable to set ownership of '%s' to %d:%d"),
cfg->snapshotDir, (int)cfg->user,
(int)cfg->group);
goto error;
}
if (chown(cfg->checkpointDir, cfg->user, cfg->group) < 0) {
virReportSystemError(errno,
_("unable to set ownership of '%s' to %d:%d"),
cfg->checkpointDir, (int)cfg->user,
(int)cfg->group);
goto error;
}
if (chown(cfg->autoDumpPath, cfg->user, cfg->group) < 0) {
virReportSystemError(errno,
_("unable to set ownership of '%s' to %d:%d"),
cfg->autoDumpPath, (int)cfg->user,
(int)cfg->group);
goto error;
}
channeldir = g_path_get_dirname(cfg->channelTargetDir);
if (chown(channeldir, cfg->user, cfg->group) < 0) {
virReportSystemError(errno,
_("unable to set ownership of '%s' to %d:%d"),
channeldir, (int)cfg->user,
(int)cfg->group);
goto error;
}
if (chown(cfg->channelTargetDir, cfg->user, cfg->group) < 0) {
virReportSystemError(errno,
_("unable to set ownership of '%s' to %d:%d"),
cfg->channelTargetDir, (int)cfg->user,
(int)cfg->group);
goto error;
}
if (chown(cfg->nvramDir, cfg->user, cfg->group) < 0) {
virReportSystemError(errno,
_("unable to set ownership of '%s' to %d:%d"),
cfg->nvramDir, (int)cfg->user,
(int)cfg->group);
goto error;
}
if (chown(cfg->memoryBackingDir, cfg->user, cfg->group) < 0) {
virReportSystemError(errno,
_("unable to set ownership of '%s' to %d:%d"),
cfg->memoryBackingDir, (int)cfg->user,
(int)cfg->group);
goto error;
}
if (chown(cfg->slirpStateDir, cfg->user, cfg->group) < 0) {
virReportSystemError(errno,
_("unable to set ownership of '%s' to %d:%d"),
cfg->slirpStateDir, (int)cfg->user,
(int)cfg->group);
goto error;
}
run_uid = cfg->user;
run_gid = cfg->group;
}
qemu_driver->qemuCapsCache = virQEMUCapsCacheNew(cfg->libDir,
cfg->cacheDir,
run_uid,
run_gid);
if (!qemu_driver->qemuCapsCache)
goto error;
if (!(sec_managers = qemuSecurityGetNested(qemu_driver->securityManager)))
goto error;
if (sec_managers[0] != NULL)
defsecmodel = qemuSecurityGetModel(sec_managers[0]);
if (!(qemu_driver->xmlopt = virQEMUDriverCreateXMLConf(qemu_driver,
defsecmodel)))
goto error;
/* If hugetlbfs is present, then we need to create a sub-directory within
* it, since we can't assume the root mount point has permissions that
* will let our spawned QEMU instances use it. */
for (i = 0; i < cfg->nhugetlbfs; i++) {
g_autofree char *hugepagePath = NULL;
hugepagePath = qemuGetBaseHugepagePath(qemu_driver, &cfg->hugetlbfs[i]);
if (!hugepagePath)
goto error;
if (g_mkdir_with_parents(hugepagePath, 0777) < 0) {
virReportSystemError(errno,
_("unable to create hugepage path %s"),
hugepagePath);
goto error;
}
if (privileged &&
virFileUpdatePerm(cfg->hugetlbfs[i].mnt_dir,
0, S_IXGRP | S_IXOTH) < 0)
goto error;
}
if (privileged &&
virFileUpdatePerm(cfg->memoryBackingDir,
0, S_IXGRP | S_IXOTH) < 0)
goto error;
if (!(qemu_driver->closeCallbacks = virCloseCallbacksNew()))
goto error;
/* Get all the running persistent or transient configs first */
if (virDomainObjListLoadAllConfigs(qemu_driver->domains,
cfg->stateDir,
NULL, true,
qemu_driver->xmlopt,
NULL, NULL) < 0)
goto error;
/* find the maximum ID from active and transient configs to initialize
* the driver with. This is to avoid race between autostart and reconnect
* threads */
virDomainObjListForEach(qemu_driver->domains,
false,
qemuDomainFindMaxID,
&qemu_driver->lastvmid);
virDomainObjListForEach(qemu_driver->domains,
false,
qemuDomainNetsRestart,
NULL);
/* Then inactive persistent configs */
if (virDomainObjListLoadAllConfigs(qemu_driver->domains,
cfg->configDir,
cfg->autostartDir, false,
qemu_driver->xmlopt,
NULL, NULL) < 0)
goto error;
virDomainObjListForEach(qemu_driver->domains,
false,
qemuDomainSnapshotLoad,
cfg->snapshotDir);
virDomainObjListForEach(qemu_driver->domains,
false,
qemuDomainCheckpointLoad,
cfg->checkpointDir);
virDomainObjListForEach(qemu_driver->domains,
false,
qemuDomainManagedSaveLoad,
qemu_driver);
/* must be initialized before trying to reconnect to all the
* running domains since there might occur some QEMU monitor
* events that will be dispatched to the worker pool */
qemu_driver->workerPool = virThreadPoolNewFull(0, 1, 0, qemuProcessEventHandler,
"qemu-event",
identity,
qemu_driver);
if (!qemu_driver->workerPool)
goto error;
qemuProcessReconnectAll(qemu_driver);
if (virDriverShouldAutostart(cfg->stateDir, &autostart) < 0)
goto error;
if (autostart)
qemuAutostartDomains(qemu_driver);
return VIR_DRV_STATE_INIT_COMPLETE;
error:
qemuStateCleanup();
return VIR_DRV_STATE_INIT_ERROR;
}
static void qemuNotifyLoadDomain(virDomainObj *vm, int newVM, void *opaque)
{
virQEMUDriver *driver = opaque;
if (newVM) {
virObjectEvent *event =
virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_DEFINED,
VIR_DOMAIN_EVENT_DEFINED_ADDED);
virObjectEventStateQueue(driver->domainEventState, event);
}
}
/**
* qemuStateReload:
*
* Function to restart the QEMU daemon, it will recheck the configuration
* files and update its state and the networking
*/
static int
qemuStateReload(void)
{
g_autoptr(virQEMUDriverConfig) cfg = NULL;
if (!qemu_driver)
return 0;
cfg = virQEMUDriverGetConfig(qemu_driver);
virDomainObjListLoadAllConfigs(qemu_driver->domains,
cfg->configDir,
cfg->autostartDir, false,
qemu_driver->xmlopt,
qemuNotifyLoadDomain, qemu_driver);
return 0;
}
/*
* qemuStateStop:
*
* Save any VMs in preparation for shutdown
*
*/
static int
qemuStateStop(void)
{
int ret = -1;
g_autoptr(virConnect) conn = NULL;
int numDomains = 0;
size_t i;
int state;
virDomainPtr *domains = NULL;
g_autofree unsigned int *flags = NULL;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(qemu_driver);
if (!(conn = virConnectOpen(cfg->uri)))
goto cleanup;
if ((numDomains = virConnectListAllDomains(conn,
&domains,
VIR_CONNECT_LIST_DOMAINS_ACTIVE)) < 0)
goto cleanup;
flags = g_new0(unsigned int, numDomains);
/* First we pause all VMs to make them stop dirtying
pages, etc. We remember if any VMs were paused so
we can restore that on resume. */
for (i = 0; i < numDomains; i++) {
flags[i] = VIR_DOMAIN_SAVE_RUNNING;
if (virDomainGetState(domains[i], &state, NULL, 0) == 0) {
if (state == VIR_DOMAIN_PAUSED)
flags[i] = VIR_DOMAIN_SAVE_PAUSED;
}
virDomainSuspend(domains[i]);
}
ret = 0;
/* Then we save the VMs to disk */
for (i = 0; i < numDomains; i++)
if (virDomainManagedSave(domains[i], flags[i]) < 0)
ret = -1;
cleanup:
if (domains) {
for (i = 0; i < numDomains; i++)
virObjectUnref(domains[i]);
VIR_FREE(domains);
}
return ret;
}
static int
qemuStateShutdownPrepare(void)
{
virThreadPoolStop(qemu_driver->workerPool);
return 0;
}
static int
qemuDomainObjStopWorkerIter(virDomainObj *vm,
void *opaque G_GNUC_UNUSED)
{
virObjectLock(vm);
qemuDomainObjStopWorker(vm);
virObjectUnlock(vm);
return 0;
}
static int
qemuStateShutdownWait(void)
{
virDomainObjListForEach(qemu_driver->domains, false,
qemuDomainObjStopWorkerIter, NULL);
virThreadPoolDrain(qemu_driver->workerPool);
return 0;
}
/**
* qemuStateCleanup:
*
* Release resources allocated by QEMU driver (no domain is shut off though)
*/
static int
qemuStateCleanup(void)
{
if (!qemu_driver)
return -1;
virObjectUnref(qemu_driver->migrationErrors);
virObjectUnref(qemu_driver->closeCallbacks);
virLockManagerPluginUnref(qemu_driver->lockManager);
virSysinfoDefFree(qemu_driver->hostsysinfo);
virPortAllocatorRangeFree(qemu_driver->migrationPorts);
virPortAllocatorRangeFree(qemu_driver->webSocketPorts);
virPortAllocatorRangeFree(qemu_driver->remotePorts);
virObjectUnref(qemu_driver->hostdevMgr);
virObjectUnref(qemu_driver->securityManager);
virObjectUnref(qemu_driver->domainEventState);
virObjectUnref(qemu_driver->qemuCapsCache);
virObjectUnref(qemu_driver->xmlopt);
virCPUDefFree(qemu_driver->hostcpu);
virObjectUnref(qemu_driver->caps);
ebtablesContextFree(qemu_driver->ebtables);
VIR_FREE(qemu_driver->qemuImgBinary);
virObjectUnref(qemu_driver->domains);
virThreadPoolFree(qemu_driver->workerPool);
if (qemu_driver->lockFD != -1)
virPidFileRelease(qemu_driver->config->stateDir, "driver", qemu_driver->lockFD);
virObjectUnref(qemu_driver->config);
virMutexDestroy(&qemu_driver->lock);
VIR_FREE(qemu_driver);
return 0;
}
static int
qemuConnectURIProbe(char **uri)
{
g_autoptr(virQEMUDriverConfig) cfg = NULL;
if (qemu_driver == NULL)
return 0;
cfg = virQEMUDriverGetConfig(qemu_driver);
*uri = g_strdup(cfg->uri);
return 0;
}
static virDrvOpenStatus qemuConnectOpen(virConnectPtr conn,
virConnectAuthPtr auth G_GNUC_UNUSED,
virConf *conf G_GNUC_UNUSED,
unsigned int flags)
{
virCheckFlags(VIR_CONNECT_RO, VIR_DRV_OPEN_ERROR);
if (qemu_driver == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("qemu state driver is not active"));
return VIR_DRV_OPEN_ERROR;
}
if (qemu_driver->embeddedRoot) {
const char *root = virURIGetParam(conn->uri, "root");
if (!root)
return VIR_DRV_OPEN_ERROR;
if (STRNEQ(conn->uri->path, "/embed")) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("URI must be qemu:///embed"));
return VIR_DRV_OPEN_ERROR;
}
if (STRNEQ(root, qemu_driver->embeddedRoot)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Cannot open embedded driver at path '%s', "
"already open with path '%s'"),
root, qemu_driver->embeddedRoot);
return VIR_DRV_OPEN_ERROR;
}
} else {
if (!virConnectValidateURIPath(conn->uri->path,
"qemu",
qemu_driver->privileged))
return VIR_DRV_OPEN_ERROR;
}
if (virConnectOpenEnsureACL(conn) < 0)
return VIR_DRV_OPEN_ERROR;
conn->privateData = qemu_driver;
return VIR_DRV_OPEN_SUCCESS;
}
static int qemuConnectClose(virConnectPtr conn)
{
virQEMUDriver *driver = conn->privateData;
/* Get rid of callbacks registered for this conn */
virCloseCallbacksRun(driver->closeCallbacks, conn, driver->domains);
conn->privateData = NULL;
return 0;
}
/* Which features are supported by this driver? */
static int
qemuConnectSupportsFeature(virConnectPtr conn, int feature)
{
int supported;
if (virConnectSupportsFeatureEnsureACL(conn) < 0)
return -1;
if (virDriverFeatureIsGlobal(feature, &supported))
return supported;
switch ((virDrvFeature) feature) {
case VIR_DRV_FEATURE_REMOTE:
case VIR_DRV_FEATURE_PROGRAM_KEEPALIVE:
case VIR_DRV_FEATURE_REMOTE_CLOSE_CALLBACK:
case VIR_DRV_FEATURE_REMOTE_EVENT_CALLBACK:
case VIR_DRV_FEATURE_TYPED_PARAM_STRING:
case VIR_DRV_FEATURE_NETWORK_UPDATE_HAS_CORRECT_ORDER:
case VIR_DRV_FEATURE_FD_PASSING:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Global feature %d should have already been handled"),
feature);
return -1;
case VIR_DRV_FEATURE_MIGRATION_V2:
case VIR_DRV_FEATURE_MIGRATION_V3:
case VIR_DRV_FEATURE_MIGRATION_P2P:
case VIR_DRV_FEATURE_MIGRATE_CHANGE_PROTECTION:
case VIR_DRV_FEATURE_XML_MIGRATABLE:
case VIR_DRV_FEATURE_MIGRATION_OFFLINE:
case VIR_DRV_FEATURE_MIGRATION_PARAMS:
return 1;
case VIR_DRV_FEATURE_MIGRATION_DIRECT:
case VIR_DRV_FEATURE_MIGRATION_V1:
default:
return 0;
}
}
static const char *qemuConnectGetType(virConnectPtr conn) {
if (virConnectGetTypeEnsureACL(conn) < 0)
return NULL;
return "QEMU";
}
static int qemuConnectIsSecure(virConnectPtr conn G_GNUC_UNUSED)
{
/* Trivially secure, since always inside the daemon */
return 1;
}
static int qemuConnectIsEncrypted(virConnectPtr conn G_GNUC_UNUSED)
{
/* Not encrypted, but remote driver takes care of that */
return 0;
}
static int qemuConnectIsAlive(virConnectPtr conn G_GNUC_UNUSED)
{
return 1;
}
static char *
qemuConnectGetSysinfo(virConnectPtr conn, unsigned int flags)
{
virQEMUDriver *driver = conn->privateData;
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
virCheckFlags(0, NULL);
if (virConnectGetSysinfoEnsureACL(conn) < 0)
return NULL;
if (!driver->hostsysinfo) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Host SMBIOS information is not available"));
return NULL;
}
if (virSysinfoFormat(&buf, driver->hostsysinfo) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
static int
qemuConnectGetMaxVcpus(virConnectPtr conn G_GNUC_UNUSED, const char *type)
{
if (virConnectGetMaxVcpusEnsureACL(conn) < 0)
return -1;
if (!type)
return 16;
if (STRCASEEQ(type, "qemu"))
return 16;
if (STRCASEEQ(type, "kvm"))
return virHostCPUGetKVMMaxVCPUs();
virReportError(VIR_ERR_INVALID_ARG,
_("unknown type '%s'"), type);
return -1;
}
static char *qemuConnectGetCapabilities(virConnectPtr conn) {
virQEMUDriver *driver = conn->privateData;
g_autoptr(virCaps) caps = NULL;
if (virConnectGetCapabilitiesEnsureACL(conn) < 0)
return NULL;
if (!(caps = virQEMUDriverGetCapabilities(driver, true)))
return NULL;
return virCapabilitiesFormatXML(caps);
}
static int
qemuGetSchedstatDelay(unsigned long long *cpudelay,
pid_t pid,
pid_t tid)
{
g_autofree char *path = NULL;
g_autofree char *buf = NULL;
if (tid)
path = g_strdup_printf("/proc/%d/task/%d/schedstat", (int)pid, (int)tid);
else
path = g_strdup_printf("/proc/%d/schedstat", (int)pid);
/* This file might not exist (needs CONFIG_SCHED_INFO) */
if (!virFileExists(path))
return 0;
if (virFileReadAll(path, 1024, &buf) < 0)
return -1;
if (sscanf(buf, "%*u %llu", cpudelay) != 1) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unable to parse schedstat info at '%s'"),
path);
return -1;
}
return 0;
}
static int
qemuDomainHelperGetVcpus(virDomainObj *vm,
virVcpuInfoPtr info,
unsigned long long *cpuwait,
unsigned long long *cpudelay,
int maxinfo,
unsigned char *cpumaps,
int maplen)
{
size_t ncpuinfo = 0;
size_t i;
if (maxinfo == 0)
return 0;
if (!qemuDomainHasVcpuPids(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cpu affinity is not supported"));
return -1;
}
if (info)
memset(info, 0, sizeof(*info) * maxinfo);
if (cpumaps)
memset(cpumaps, 0, sizeof(*cpumaps) * maxinfo);
for (i = 0; i < virDomainDefGetVcpusMax(vm->def) && ncpuinfo < maxinfo; i++) {
virDomainVcpuDef *vcpu = virDomainDefGetVcpu(vm->def, i);
pid_t vcpupid = qemuDomainGetVcpuPid(vm, i);
virVcpuInfoPtr vcpuinfo = info + ncpuinfo;
if (!vcpu->online)
continue;
if (info) {
vcpuinfo->number = i;
vcpuinfo->state = VIR_VCPU_RUNNING;
if (virProcessGetStatInfo(&vcpuinfo->cpuTime,
&vcpuinfo->cpu, NULL,
vm->pid, vcpupid) < 0) {
virReportSystemError(errno, "%s",
_("cannot get vCPU placement & pCPU time"));
return -1;
}
}
if (cpumaps) {
unsigned char *cpumap = VIR_GET_CPUMAP(cpumaps, maplen, ncpuinfo);
g_autoptr(virBitmap) map = NULL;
if (!(map = virProcessGetAffinity(vcpupid)))
return -1;
virBitmapToDataBuf(map, cpumap, maplen);
}
if (cpuwait) {
if (virProcessGetSchedInfo(&(cpuwait[ncpuinfo]), vm->pid, vcpupid) < 0)
return -1;
}
if (cpudelay) {
if (qemuGetSchedstatDelay(&(cpudelay[ncpuinfo]), vm->pid, vcpupid) < 0)
return -1;
}
ncpuinfo++;
}
return ncpuinfo;
}
static virDomainPtr qemuDomainLookupByID(virConnectPtr conn,
int id)
{
virQEMUDriver *driver = conn->privateData;
virDomainObj *vm;
virDomainPtr dom = NULL;
vm = virDomainObjListFindByID(driver->domains, id);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN,
_("no domain with matching id %d"), id);
goto cleanup;
}
if (virDomainLookupByIDEnsureACL(conn, vm->def) < 0)
goto cleanup;
dom = virGetDomain(conn, vm->def->name, vm->def->uuid, vm->def->id);
cleanup:
virDomainObjEndAPI(&vm);
return dom;
}
static virDomainPtr qemuDomainLookupByUUID(virConnectPtr conn,
const unsigned char *uuid)
{
virQEMUDriver *driver = conn->privateData;
virDomainObj *vm;
virDomainPtr dom = NULL;
vm = virDomainObjListFindByUUID(driver->domains, uuid);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(uuid, uuidstr);
virReportError(VIR_ERR_NO_DOMAIN,
_("no domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
if (virDomainLookupByUUIDEnsureACL(conn, vm->def) < 0)
goto cleanup;
dom = virGetDomain(conn, vm->def->name, vm->def->uuid, vm->def->id);
cleanup:
virDomainObjEndAPI(&vm);
return dom;
}
static virDomainPtr qemuDomainLookupByName(virConnectPtr conn,
const char *name)
{
virQEMUDriver *driver = conn->privateData;
virDomainObj *vm;
virDomainPtr dom = NULL;
vm = virDomainObjListFindByName(driver->domains, name);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN,
_("no domain with matching name '%s'"), name);
goto cleanup;
}
if (virDomainLookupByNameEnsureACL(conn, vm->def) < 0)
goto cleanup;
dom = virGetDomain(conn, vm->def->name, vm->def->uuid, vm->def->id);
cleanup:
virDomainObjEndAPI(&vm);
return dom;
}
static int qemuDomainIsActive(virDomainPtr dom)
{
virDomainObj *obj;
int ret = -1;
if (!(obj = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainIsActiveEnsureACL(dom->conn, obj->def) < 0)
goto cleanup;
ret = virDomainObjIsActive(obj);
cleanup:
virDomainObjEndAPI(&obj);
return ret;
}
static int qemuDomainIsPersistent(virDomainPtr dom)
{
virDomainObj *obj;
int ret = -1;
if (!(obj = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainIsPersistentEnsureACL(dom->conn, obj->def) < 0)
goto cleanup;
ret = obj->persistent;
cleanup:
virDomainObjEndAPI(&obj);
return ret;
}
static int qemuDomainIsUpdated(virDomainPtr dom)
{
virDomainObj *obj;
int ret = -1;
if (!(obj = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainIsUpdatedEnsureACL(dom->conn, obj->def) < 0)
goto cleanup;
ret = obj->updated;
cleanup:
virDomainObjEndAPI(&obj);
return ret;
}
static int qemuConnectGetVersion(virConnectPtr conn, unsigned long *version)
{
virQEMUDriver *driver = conn->privateData;
unsigned int qemuVersion = 0;
g_autoptr(virCaps) caps = NULL;
if (virConnectGetVersionEnsureACL(conn) < 0)
return -1;
if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
return -1;
if (virQEMUCapsGetDefaultVersion(caps,
driver->qemuCapsCache,
&qemuVersion) < 0)
return -1;
*version = qemuVersion;
return 0;
}
static char *qemuConnectGetHostname(virConnectPtr conn)
{
if (virConnectGetHostnameEnsureACL(conn) < 0)
return NULL;
return virGetHostname();
}
static int qemuConnectListDomains(virConnectPtr conn, int *ids, int nids)
{
virQEMUDriver *driver = conn->privateData;
if (virConnectListDomainsEnsureACL(conn) < 0)
return -1;
return virDomainObjListGetActiveIDs(driver->domains, ids, nids,
virConnectListDomainsCheckACL, conn);
}
static int qemuConnectNumOfDomains(virConnectPtr conn)
{
virQEMUDriver *driver = conn->privateData;
if (virConnectNumOfDomainsEnsureACL(conn) < 0)
return -1;
return virDomainObjListNumOfDomains(driver->domains, true,
virConnectNumOfDomainsCheckACL, conn);
}
static virDomainPtr qemuDomainCreateXML(virConnectPtr conn,
const char *xml,
unsigned int flags)
{
virQEMUDriver *driver = conn->privateData;
g_autoptr(virDomainDef) def = NULL;
virDomainObj *vm = NULL;
virDomainPtr dom = NULL;
virObjectEvent *event = NULL;
virObjectEvent *event2 = NULL;
unsigned int start_flags = VIR_QEMU_PROCESS_START_COLD;
unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_INACTIVE |
VIR_DOMAIN_DEF_PARSE_ABI_UPDATE;
virCheckFlags(VIR_DOMAIN_START_PAUSED |
VIR_DOMAIN_START_AUTODESTROY |
VIR_DOMAIN_START_VALIDATE |
VIR_DOMAIN_START_RESET_NVRAM, NULL);
if (flags & VIR_DOMAIN_START_VALIDATE)
parse_flags |= VIR_DOMAIN_DEF_PARSE_VALIDATE_SCHEMA;
if (flags & VIR_DOMAIN_START_PAUSED)
start_flags |= VIR_QEMU_PROCESS_START_PAUSED;
if (flags & VIR_DOMAIN_START_AUTODESTROY)
start_flags |= VIR_QEMU_PROCESS_START_AUTODESTROY;
if (flags & VIR_DOMAIN_START_RESET_NVRAM)
start_flags |= VIR_QEMU_PROCESS_START_RESET_NVRAM;
if (!(def = virDomainDefParseString(xml, driver->xmlopt,
NULL, parse_flags)))
goto cleanup;
if (virDomainCreateXMLEnsureACL(conn, def) < 0)
goto cleanup;
if (!(vm = virDomainObjListAdd(driver->domains, &def,
driver->xmlopt,
VIR_DOMAIN_OBJ_LIST_ADD_LIVE |
VIR_DOMAIN_OBJ_LIST_ADD_CHECK_LIVE,
NULL)))
goto cleanup;
if (qemuProcessBeginJob(vm, VIR_DOMAIN_JOB_OPERATION_START, flags) < 0) {
qemuDomainRemoveInactive(driver, vm);
goto cleanup;
}
if (qemuProcessStart(conn, driver, vm, NULL, VIR_ASYNC_JOB_START,
NULL, -1, NULL, NULL,
VIR_NETDEV_VPORT_PROFILE_OP_CREATE,
start_flags) < 0) {
virDomainAuditStart(vm, "booted", false);
qemuDomainRemoveInactive(driver, vm);
qemuProcessEndJob(vm);
goto cleanup;
}
event = virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_STARTED,
VIR_DOMAIN_EVENT_STARTED_BOOTED);
if (event && (flags & VIR_DOMAIN_START_PAUSED)) {
/* There are two classes of event-watching clients - those
* that only care about on/off (and must see a started event
* no matter what, but don't care about suspend events), and
* those that also care about running/paused. To satisfy both
* client types, we have to send two events. */
event2 = virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_SUSPENDED,
VIR_DOMAIN_EVENT_SUSPENDED_PAUSED);
}
virDomainAuditStart(vm, "booted", true);
dom = virGetDomain(conn, vm->def->name, vm->def->uuid, vm->def->id);
qemuProcessEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
virObjectEventStateQueue(driver->domainEventState, event2);
return dom;
}
static int qemuDomainSuspend(virDomainPtr dom)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
int ret = -1;
qemuDomainObjPrivate *priv;
virDomainPausedReason reason;
int state;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainSuspendEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
priv = vm->privateData;
if (qemuDomainObjBeginJob(vm, VIR_JOB_SUSPEND) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (priv->job.asyncJob == VIR_ASYNC_JOB_MIGRATION_OUT)
reason = VIR_DOMAIN_PAUSED_MIGRATION;
else if (priv->job.asyncJob == VIR_ASYNC_JOB_SNAPSHOT)
reason = VIR_DOMAIN_PAUSED_SNAPSHOT;
else
reason = VIR_DOMAIN_PAUSED_USER;
state = virDomainObjGetState(vm, NULL);
if (state == VIR_DOMAIN_PMSUSPENDED) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain is pmsuspended"));
goto endjob;
}
if (state != VIR_DOMAIN_PAUSED) {
if (qemuProcessStopCPUs(driver, vm, reason, VIR_ASYNC_JOB_NONE) < 0)
goto endjob;
}
qemuDomainSaveStatus(vm);
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int qemuDomainResume(virDomainPtr dom)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
int ret = -1;
int state;
int reason;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainResumeEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
state = virDomainObjGetState(vm, &reason);
if (state == VIR_DOMAIN_PMSUSPENDED) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain is pmsuspended"));
goto endjob;
}
if (state == VIR_DOMAIN_RUNNING) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain is already running"));
goto endjob;
}
if ((state == VIR_DOMAIN_CRASHED &&
reason == VIR_DOMAIN_CRASHED_PANICKED) ||
state == VIR_DOMAIN_PAUSED) {
if (qemuProcessStartCPUs(driver, vm,
VIR_DOMAIN_RUNNING_UNPAUSED,
VIR_ASYNC_JOB_NONE) < 0) {
if (virGetLastErrorCode() == VIR_ERR_OK)
virReportError(VIR_ERR_OPERATION_FAILED,
"%s", _("resume operation failed"));
goto endjob;
}
}
qemuDomainSaveStatus(vm);
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainShutdownFlagsAgent(virDomainObj *vm,
bool isReboot,
bool reportError)
{
int ret = -1;
qemuAgent *agent;
int agentFlag = isReboot ? QEMU_AGENT_SHUTDOWN_REBOOT :
QEMU_AGENT_SHUTDOWN_POWERDOWN;
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_MODIFY) < 0)
return -1;
if (virDomainObjGetState(vm, NULL) != VIR_DOMAIN_RUNNING) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain is not running"));
goto endjob;
}
if (!qemuDomainAgentAvailable(vm, reportError))
goto endjob;
qemuDomainSetFakeReboot(vm, false);
agent = qemuDomainObjEnterAgent(vm);
ret = qemuAgentShutdown(agent, agentFlag);
qemuDomainObjExitAgent(vm, agent);
endjob:
qemuDomainObjEndAgentJob(vm);
return ret;
}
static int
qemuDomainShutdownFlagsMonitor(virDomainObj *vm,
bool isReboot)
{
int ret = -1;
qemuDomainObjPrivate *priv;
priv = vm->privateData;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
return -1;
if (virDomainObjGetState(vm, NULL) != VIR_DOMAIN_RUNNING) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain is not running"));
goto endjob;
}
qemuDomainSetFakeReboot(vm, isReboot);
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorSystemPowerdown(priv->mon);
qemuDomainObjExitMonitor(vm);
endjob:
qemuDomainObjEndJob(vm);
return ret;
}
static int qemuDomainShutdownFlags(virDomainPtr dom, unsigned int flags)
{
virDomainObj *vm;
int ret = -1;
qemuDomainObjPrivate *priv;
bool useAgent = false, agentRequested, acpiRequested;
bool isReboot = false;
bool agentForced;
virCheckFlags(VIR_DOMAIN_SHUTDOWN_ACPI_POWER_BTN |
VIR_DOMAIN_SHUTDOWN_GUEST_AGENT, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (vm->def->onPoweroff == VIR_DOMAIN_LIFECYCLE_ACTION_RESTART ||
vm->def->onPoweroff == VIR_DOMAIN_LIFECYCLE_ACTION_RESTART_RENAME) {
isReboot = true;
VIR_INFO("Domain on_poweroff setting overridden, attempting reboot");
}
priv = vm->privateData;
agentRequested = flags & VIR_DOMAIN_SHUTDOWN_GUEST_AGENT;
acpiRequested = flags & VIR_DOMAIN_SHUTDOWN_ACPI_POWER_BTN;
/* Prefer agent unless we were requested to not to. */
if (agentRequested || (!flags && priv->agent))
useAgent = true;
if (virDomainShutdownFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
agentForced = agentRequested && !acpiRequested;
if (useAgent) {
ret = qemuDomainShutdownFlagsAgent(vm, isReboot, agentForced);
if (ret < 0 && agentForced)
goto cleanup;
}
/* If we are not enforced to use just an agent, try ACPI
* shutdown as well in case agent did not succeed.
*/
if (!useAgent || (ret < 0 && (acpiRequested || !flags))) {
/* Even if agent failed, we have to check if guest went away
* by itself while our locks were down. */
if (useAgent && !virDomainObjIsActive(vm)) {
ret = 0;
goto cleanup;
}
ret = qemuDomainShutdownFlagsMonitor(vm, isReboot);
}
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int qemuDomainShutdown(virDomainPtr dom)
{
return qemuDomainShutdownFlags(dom, 0);
}
static int
qemuDomainRebootAgent(virDomainObj *vm,
bool isReboot,
bool agentForced)
{
qemuAgent *agent;
int ret = -1;
int agentFlag = QEMU_AGENT_SHUTDOWN_REBOOT;
if (!isReboot)
agentFlag = QEMU_AGENT_SHUTDOWN_POWERDOWN;
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_MODIFY) < 0)
return -1;
if (!qemuDomainAgentAvailable(vm, agentForced))
goto endjob;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
qemuDomainSetFakeReboot(vm, false);
agent = qemuDomainObjEnterAgent(vm);
ret = qemuAgentShutdown(agent, agentFlag);
qemuDomainObjExitAgent(vm, agent);
endjob:
qemuDomainObjEndAgentJob(vm);
return ret;
}
static int
qemuDomainRebootMonitor(virDomainObj *vm,
bool isReboot)
{
qemuDomainObjPrivate *priv = vm->privateData;
int ret = -1;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
return -1;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
qemuDomainSetFakeReboot(vm, isReboot);
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorSystemPowerdown(priv->mon);
qemuDomainObjExitMonitor(vm);
endjob:
qemuDomainObjEndJob(vm);
return ret;
}
static int
qemuDomainReboot(virDomainPtr dom, unsigned int flags)
{
virDomainObj *vm;
int ret = -1;
qemuDomainObjPrivate *priv;
bool useAgent = false, agentRequested, acpiRequested;
bool isReboot = true;
bool agentForced;
virCheckFlags(VIR_DOMAIN_REBOOT_ACPI_POWER_BTN |
VIR_DOMAIN_REBOOT_GUEST_AGENT, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (vm->def->onReboot == VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY ||
vm->def->onReboot == VIR_DOMAIN_LIFECYCLE_ACTION_PRESERVE) {
isReboot = false;
VIR_INFO("Domain on_reboot setting overridden, shutting down");
}
priv = vm->privateData;
agentRequested = flags & VIR_DOMAIN_REBOOT_GUEST_AGENT;
acpiRequested = flags & VIR_DOMAIN_REBOOT_ACPI_POWER_BTN;
/* Prefer agent unless we were requested to not to. */
if (agentRequested || (!flags && priv->agent))
useAgent = true;
if (virDomainRebootEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
agentForced = agentRequested && !acpiRequested;
if (useAgent)
ret = qemuDomainRebootAgent(vm, isReboot, agentForced);
if (ret < 0 && agentForced)
goto cleanup;
/* If we are not enforced to use just an agent, try ACPI
* shutdown as well in case agent did not succeed.
*/
if ((!useAgent) ||
(ret < 0 && (acpiRequested || !flags))) {
ret = qemuDomainRebootMonitor(vm, isReboot);
}
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainReset(virDomainPtr dom, unsigned int flags)
{
virDomainObj *vm;
int ret = -1;
qemuDomainObjPrivate *priv;
virDomainState state;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainResetEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
priv = vm->privateData;
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorSystemReset(priv->mon);
qemuDomainObjExitMonitor(vm);
priv->fakeReboot = false;
state = virDomainObjGetState(vm, NULL);
if (state == VIR_DOMAIN_CRASHED)
virDomainObjSetState(vm, VIR_DOMAIN_PAUSED, VIR_DOMAIN_PAUSED_CRASHED);
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainDestroyFlags(virDomainPtr dom,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
int ret = -1;
virObjectEvent *event = NULL;
qemuDomainObjPrivate *priv;
unsigned int stopFlags = 0;
int state;
int reason;
bool starting;
virCheckFlags(VIR_DOMAIN_DESTROY_GRACEFUL |
VIR_DOMAIN_DESTROY_REMOVE_LOGS, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
priv = vm->privateData;
if (virDomainDestroyFlagsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
state = virDomainObjGetState(vm, &reason);
starting = (state == VIR_DOMAIN_PAUSED &&
reason == VIR_DOMAIN_PAUSED_STARTING_UP &&
!priv->beingDestroyed);
if (qemuProcessBeginStopJob(vm, VIR_JOB_DESTROY,
!(flags & VIR_DOMAIN_DESTROY_GRACEFUL)) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
if (starting) {
VIR_DEBUG("Domain %s is not running anymore", vm->def->name);
ret = 0;
} else {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain is not running"));
}
goto endjob;
}
qemuDomainSetFakeReboot(vm, false);
if (priv->job.asyncJob == VIR_ASYNC_JOB_MIGRATION_IN)
stopFlags |= VIR_QEMU_PROCESS_STOP_MIGRATED;
qemuProcessStop(driver, vm, VIR_DOMAIN_SHUTOFF_DESTROYED,
VIR_ASYNC_JOB_NONE, stopFlags);
if ((flags & VIR_DOMAIN_DESTROY_REMOVE_LOGS) &&
qemuDomainRemoveLogs(driver, vm->def->name) < 0)
VIR_WARN("Failed to remove logs for VM '%s'", vm->def->name);
event = virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_DESTROYED);
virDomainAuditStop(vm, "destroyed");
ret = 0;
endjob:
if (ret == 0)
qemuDomainRemoveInactive(driver, vm);
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
return ret;
}
static int
qemuDomainDestroy(virDomainPtr dom)
{
return qemuDomainDestroyFlags(dom, 0);
}
static char *qemuDomainGetOSType(virDomainPtr dom) {
virDomainObj *vm;
char *type = NULL;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainGetOSTypeEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
type = g_strdup(virDomainOSTypeToString(vm->def->os.type));
cleanup:
virDomainObjEndAPI(&vm);
return type;
}
/* Returns max memory in kb, 0 if error */
static unsigned long long
qemuDomainGetMaxMemory(virDomainPtr dom)
{
virDomainObj *vm;
unsigned long long ret = 0;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainGetMaxMemoryEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
ret = virDomainDefGetMemoryTotal(vm->def);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int qemuDomainSetMemoryFlags(virDomainPtr dom, unsigned long newmem,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
qemuDomainObjPrivate *priv;
virDomainObj *vm;
virDomainDef *def;
virDomainDef *persistentDef;
int ret = -1, r;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG |
VIR_DOMAIN_MEM_MAXIMUM, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
cfg = virQEMUDriverGetConfig(driver);
if (virDomainSetMemoryFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
if (flags & VIR_DOMAIN_MEM_MAXIMUM) {
/* resize the maximum memory */
if (def) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot resize the maximum memory on an "
"active domain"));
goto endjob;
}
if (persistentDef) {
/* resizing memory with NUMA nodes specified doesn't work as there
* is no way to change the individual node sizes with this API */
if (virDomainNumaGetNodeCount(persistentDef->numa) > 0) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("initial memory size of a domain with NUMA "
"nodes cannot be modified with this API"));
goto endjob;
}
if (persistentDef->mem.max_memory &&
persistentDef->mem.max_memory < newmem) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot set initial memory size greater than "
"the maximum memory size"));
goto endjob;
}
virDomainDefSetMemoryTotal(persistentDef, newmem);
if (persistentDef->mem.cur_balloon > newmem)
persistentDef->mem.cur_balloon = newmem;
ret = virDomainDefSave(persistentDef, driver->xmlopt,
cfg->configDir);
goto endjob;
}
} else {
/* resize the current memory */
unsigned long oldmax = 0;
size_t i;
if (def) {
oldmax = virDomainDefGetMemoryTotal(def);
/* While virtio-mem is regular mem from guest POV, it can't be
* modified through this API. */
for (i = 0; i < def->nmems; i++) {
if (def->mems[i]->model == VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM)
oldmax -= def->mems[i]->size;
}
}
if (persistentDef) {
if (!def || oldmax > virDomainDefGetMemoryTotal(persistentDef)) {
oldmax = virDomainDefGetMemoryTotal(persistentDef);
for (i = 0; i < persistentDef->nmems; i++) {
if (persistentDef->mems[i]->model == VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM)
oldmax -= persistentDef->mems[i]->size;
}
}
}
if (newmem > oldmax) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("cannot set memory higher than max memory"));
goto endjob;
}
if (def) {
priv = vm->privateData;
qemuDomainObjEnterMonitor(vm);
r = qemuMonitorSetBalloon(priv->mon, newmem);
qemuDomainObjExitMonitor(vm);
if (r < 0)
goto endjob;
/* Lack of balloon support is a fatal error */
if (r == 0) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("Unable to change memory of active domain without "
"the balloon device and guest OS balloon driver"));
goto endjob;
}
}
if (persistentDef) {
persistentDef->mem.cur_balloon = newmem;
ret = virDomainDefSave(persistentDef, driver->xmlopt,
cfg->configDir);
goto endjob;
}
}
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int qemuDomainSetMemory(virDomainPtr dom, unsigned long newmem)
{
return qemuDomainSetMemoryFlags(dom, newmem, VIR_DOMAIN_AFFECT_LIVE);
}
static int qemuDomainSetMaxMemory(virDomainPtr dom, unsigned long memory)
{
return qemuDomainSetMemoryFlags(dom, memory, VIR_DOMAIN_MEM_MAXIMUM);
}
static int qemuDomainSetMemoryStatsPeriod(virDomainPtr dom, int period,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
qemuDomainObjPrivate *priv;
virDomainObj *vm;
virDomainDef *def;
virDomainDef *persistentDef;
int ret = -1, r;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
cfg = virQEMUDriverGetConfig(driver);
if (virDomainSetMemoryStatsPeriodEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
/* Set the balloon driver collection interval */
priv = vm->privateData;
if (def) {
if (!virDomainDefHasMemballoon(def)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("No memory balloon device configured, "
"can not set the collection period"));
goto endjob;
}
qemuDomainObjEnterMonitor(vm);
r = qemuMonitorSetMemoryStatsPeriod(priv->mon, def->memballoon, period);
qemuDomainObjExitMonitor(vm);
if (r < 0) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("unable to set balloon driver collection period"));
goto endjob;
}
def->memballoon->period = period;
qemuDomainSaveStatus(vm);
}
if (persistentDef) {
if (!virDomainDefHasMemballoon(persistentDef)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("No memory balloon device configured, "
"can not set the collection period"));
goto endjob;
}
persistentDef->memballoon->period = period;
ret = virDomainDefSave(persistentDef, driver->xmlopt, cfg->configDir);
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int qemuDomainInjectNMI(virDomainPtr domain, unsigned int flags)
{
virDomainObj *vm = NULL;
int ret = -1;
qemuDomainObjPrivate *priv;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(domain)))
return -1;
if (virDomainInjectNMIEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
priv = vm->privateData;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorInjectNMI(priv->mon);
qemuDomainObjExitMonitor(vm);
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int qemuDomainSendKey(virDomainPtr domain,
unsigned int codeset,
unsigned int holdtime,
unsigned int *keycodes,
int nkeycodes,
unsigned int flags)
{
virDomainObj *vm = NULL;
int ret = -1;
qemuDomainObjPrivate *priv;
virCheckFlags(0, -1);
/* translate the keycode to QNUM for qemu driver */
if (codeset != VIR_KEYCODE_SET_QNUM) {
size_t i;
int keycode;
for (i = 0; i < nkeycodes; i++) {
keycode = virKeycodeValueTranslate(codeset, VIR_KEYCODE_SET_QNUM,
keycodes[i]);
if (keycode < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot translate keycode %u of %s codeset to qnum keycode"),
keycodes[i],
virKeycodeSetTypeToString(codeset));
return -1;
}
keycodes[i] = keycode;
}
}
if (!(vm = qemuDomainObjFromDomain(domain)))
goto cleanup;
priv = vm->privateData;
if (virDomainSendKeyEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorSendKey(priv->mon, holdtime, keycodes, nkeycodes);
qemuDomainObjExitMonitor(vm);
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetInfo(virDomainPtr dom,
virDomainInfoPtr info)
{
unsigned long long maxmem;
virDomainObj *vm;
int ret = -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainGetInfoEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
qemuDomainUpdateCurrentMemorySize(vm);
memset(info, 0, sizeof(*info));
info->state = virDomainObjGetState(vm, NULL);
maxmem = virDomainDefGetMemoryTotal(vm->def);
if (VIR_ASSIGN_IS_OVERFLOW(info->maxMem, maxmem)) {
virReportError(VIR_ERR_OVERFLOW, "%s",
_("Initial memory size too large"));
goto cleanup;
}
if (VIR_ASSIGN_IS_OVERFLOW(info->memory, vm->def->mem.cur_balloon)) {
virReportError(VIR_ERR_OVERFLOW, "%s",
_("Current memory size too large"));
goto cleanup;
}
if (virDomainObjIsActive(vm)) {
if (virProcessGetStatInfo(&(info->cpuTime), NULL, NULL,
vm->pid, 0) < 0) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("cannot read cputime for domain"));
goto cleanup;
}
}
if (VIR_ASSIGN_IS_OVERFLOW(info->nrVirtCpu, virDomainDefGetVcpus(vm->def))) {
virReportError(VIR_ERR_OVERFLOW, "%s", _("cpu count too large"));
goto cleanup;
}
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetState(virDomainPtr dom,
int *state,
int *reason,
unsigned int flags)
{
virDomainObj *vm;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainGetStateEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
*state = virDomainObjGetState(vm, reason);
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetControlInfo(virDomainPtr dom,
virDomainControlInfoPtr info,
unsigned int flags)
{
virDomainObj *vm;
qemuDomainObjPrivate *priv;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainGetControlInfoEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
priv = vm->privateData;
memset(info, 0, sizeof(*info));
if (priv->monError) {
info->state = VIR_DOMAIN_CONTROL_ERROR;
info->details = VIR_DOMAIN_CONTROL_ERROR_REASON_MONITOR;
} else if (priv->job.active) {
if (virTimeMillisNow(&info->stateTime) < 0)
goto cleanup;
if (priv->job.current) {
info->state = VIR_DOMAIN_CONTROL_JOB;
info->stateTime -= priv->job.current->started;
} else {
if (priv->monStart > 0) {
info->state = VIR_DOMAIN_CONTROL_OCCUPIED;
info->stateTime -= priv->monStart;
} else {
/* At this point the domain has an active job, but monitor was
* not entered and the domain object lock is not held thus we
* are stuck in the job forever due to a programming error.
*/
info->state = VIR_DOMAIN_CONTROL_ERROR;
info->details = VIR_DOMAIN_CONTROL_ERROR_REASON_INTERNAL;
info->stateTime = 0;
}
}
} else {
info->state = VIR_DOMAIN_CONTROL_OK;
}
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
/* The vm must be active + locked. Vm will be unlocked and
* potentially free'd after this returns (eg transient VMs are freed
* shutdown). So 'vm' must not be referenced by the caller after
* this returns (whether returning success or failure).
*/
static int
qemuDomainSaveInternal(virQEMUDriver *driver,
virDomainObj *vm, const char *path,
int compressed, virCommand *compressor,
const char *xmlin, unsigned int flags)
{
g_autofree char *xml = NULL;
bool was_running = false;
int ret = -1;
virObjectEvent *event = NULL;
qemuDomainObjPrivate *priv = vm->privateData;
virQEMUSaveData *data = NULL;
g_autoptr(qemuDomainSaveCookie) cookie = NULL;
if (qemuDomainObjBeginAsyncJob(vm, VIR_ASYNC_JOB_SAVE,
VIR_DOMAIN_JOB_OPERATION_SAVE, flags) < 0)
goto cleanup;
if (!qemuMigrationSrcIsAllowed(driver, vm, false, VIR_ASYNC_JOB_SAVE, 0))
goto endjob;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("guest unexpectedly quit"));
goto endjob;
}
qemuDomainJobSetStatsType(priv->job.current,
QEMU_DOMAIN_JOB_STATS_TYPE_SAVEDUMP);
/* Pause */
if (virDomainObjGetState(vm, NULL) == VIR_DOMAIN_RUNNING) {
was_running = true;
if (qemuProcessStopCPUs(driver, vm, VIR_DOMAIN_PAUSED_SAVE,
VIR_ASYNC_JOB_SAVE) < 0)
goto endjob;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("guest unexpectedly quit"));
goto endjob;
}
}
/* libvirt-domain.c already guaranteed these two flags are exclusive. */
if (flags & VIR_DOMAIN_SAVE_RUNNING)
was_running = true;
else if (flags & VIR_DOMAIN_SAVE_PAUSED)
was_running = false;
/* Get XML for the domain. Restore needs only the inactive xml,
* including secure. We should get the same result whether xmlin
* is NULL or whether it was the live xml of the domain moments
* before. */
if (xmlin) {
g_autoptr(virDomainDef) def = NULL;
if (!(def = virDomainDefParseString(xmlin, driver->xmlopt,
priv->qemuCaps,
VIR_DOMAIN_DEF_PARSE_INACTIVE |
VIR_DOMAIN_DEF_PARSE_SKIP_VALIDATE))) {
goto endjob;
}
if (!qemuDomainCheckABIStability(driver, vm, def))
goto endjob;
xml = qemuDomainDefFormatLive(driver, priv->qemuCaps, def, NULL, true, true);
} else {
xml = qemuDomainDefFormatLive(driver, priv->qemuCaps, vm->def,
priv->origCPU, true, true);
}
if (!xml) {
virReportError(VIR_ERR_OPERATION_FAILED,
"%s", _("failed to get domain xml"));
goto endjob;
}
if (!(cookie = qemuDomainSaveCookieNew(vm)))
goto endjob;
if (!(data = virQEMUSaveDataNew(xml, cookie, was_running, compressed,
driver->xmlopt)))
goto endjob;
xml = NULL;
ret = qemuSaveImageCreate(driver, vm, path, data, compressor,
flags, VIR_ASYNC_JOB_SAVE);
if (ret < 0)
goto endjob;
/* Shut it down */
qemuProcessStop(driver, vm, VIR_DOMAIN_SHUTOFF_SAVED,
VIR_ASYNC_JOB_SAVE, 0);
virDomainAuditStop(vm, "saved");
event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_SAVED);
endjob:
if (ret < 0) {
if (was_running && virDomainObjIsActive(vm)) {
virErrorPtr save_err;
virErrorPreserveLast(&save_err);
if (qemuProcessStartCPUs(driver, vm,
VIR_DOMAIN_RUNNING_SAVE_CANCELED,
VIR_ASYNC_JOB_SAVE) < 0) {
VIR_WARN("Unable to resume guest CPUs after save failure");
virObjectEventStateQueue(driver->domainEventState,
virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_SUSPENDED,
VIR_DOMAIN_EVENT_SUSPENDED_API_ERROR));
}
virErrorRestore(&save_err);
}
}
qemuDomainObjEndAsyncJob(vm);
if (ret == 0)
qemuDomainRemoveInactive(driver, vm);
cleanup:
virQEMUSaveDataFree(data);
virObjectEventStateQueue(driver->domainEventState, event);
return ret;
}
static char *
qemuDomainManagedSavePath(virQEMUDriver *driver, virDomainObj *vm)
{
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
return g_strdup_printf("%s/%s.save", cfg->saveDir, vm->def->name);
}
static int
qemuDomainManagedSaveHelper(virQEMUDriver *driver,
virDomainObj *vm,
const char *dxml,
unsigned int flags)
{
g_autoptr(virQEMUDriverConfig) cfg = NULL;
g_autoptr(virCommand) compressor = NULL;
g_autofree char *path = NULL;
int compressed;
if (virDomainObjCheckActive(vm) < 0)
return -1;
if (!vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot do managed save for transient domain"));
return -1;
}
cfg = virQEMUDriverGetConfig(driver);
if ((compressed = qemuSaveImageGetCompressionProgram(cfg->saveImageFormat,
&compressor,
"save", false)) < 0)
return -1;
path = qemuDomainManagedSavePath(driver, vm);
VIR_INFO("Saving state of domain '%s' to '%s'", vm->def->name, path);
if (qemuDomainSaveInternal(driver, vm, path, compressed,
compressor, dxml, flags) < 0)
return -1;
vm->hasManagedSave = true;
return 0;
}
static int
qemuDomainSaveFlags(virDomainPtr dom, const char *path, const char *dxml,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
int compressed;
g_autoptr(virCommand) compressor = NULL;
int ret = -1;
virDomainObj *vm = NULL;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virCheckFlags(VIR_DOMAIN_SAVE_BYPASS_CACHE |
VIR_DOMAIN_SAVE_RUNNING |
VIR_DOMAIN_SAVE_PAUSED, -1);
cfg = virQEMUDriverGetConfig(driver);
if ((compressed = qemuSaveImageGetCompressionProgram(cfg->saveImageFormat,
&compressor,
"save", false)) < 0)
goto cleanup;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainSaveFlagsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
ret = qemuDomainSaveInternal(driver, vm, path, compressed,
compressor, dxml, flags);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainSave(virDomainPtr dom, const char *path)
{
return qemuDomainSaveFlags(dom, path, NULL, 0);
}
static int
qemuDomainSaveParams(virDomainPtr dom,
virTypedParameterPtr params,
int nparams,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virDomainObj *vm = NULL;
g_autoptr(virCommand) compressor = NULL;
const char *to = NULL;
const char *dxml = NULL;
int compressed;
int ret = -1;
virCheckFlags(VIR_DOMAIN_SAVE_BYPASS_CACHE |
VIR_DOMAIN_SAVE_RUNNING |
VIR_DOMAIN_SAVE_PAUSED, -1);
if (virTypedParamsValidate(params, nparams,
VIR_DOMAIN_SAVE_PARAM_FILE,
VIR_TYPED_PARAM_STRING,
VIR_DOMAIN_SAVE_PARAM_DXML,
VIR_TYPED_PARAM_STRING,
NULL) < 0)
return -1;
if (virTypedParamsGetString(params, nparams,
VIR_DOMAIN_SAVE_PARAM_FILE, &to) < 0)
return -1;
if (virTypedParamsGetString(params, nparams,
VIR_DOMAIN_SAVE_PARAM_DXML, &dxml) < 0)
return -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainSaveParamsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!to) {
/* If no save path was provided then this behaves as managed save. */
return qemuDomainManagedSaveHelper(driver, vm, dxml, flags);
}
cfg = virQEMUDriverGetConfig(driver);
if ((compressed = qemuSaveImageGetCompressionProgram(cfg->saveImageFormat,
&compressor,
"save", false)) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
ret = qemuDomainSaveInternal(driver, vm, to, compressed,
compressor, dxml, flags);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainManagedSave(virDomainPtr dom, unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
int ret = -1;
virCheckFlags(VIR_DOMAIN_SAVE_BYPASS_CACHE |
VIR_DOMAIN_SAVE_RUNNING |
VIR_DOMAIN_SAVE_PAUSED, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainManagedSaveEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
ret = qemuDomainManagedSaveHelper(driver, vm, NULL, flags);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainManagedSaveLoad(virDomainObj *vm,
void *opaque)
{
virQEMUDriver *driver = opaque;
g_autofree char *name = NULL;
virObjectLock(vm);
name = qemuDomainManagedSavePath(driver, vm);
vm->hasManagedSave = virFileExists(name);
virObjectUnlock(vm);
return 0;
}
static int
qemuDomainHasManagedSaveImage(virDomainPtr dom, unsigned int flags)
{
virDomainObj *vm = NULL;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainHasManagedSaveImageEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
ret = vm->hasManagedSave;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainManagedSaveRemove(virDomainPtr dom, unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
int ret = -1;
g_autofree char *name = NULL;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainManagedSaveRemoveEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
name = qemuDomainManagedSavePath(driver, vm);
if (unlink(name) < 0) {
virReportSystemError(errno,
_("Failed to remove managed save file '%s'"),
name);
goto cleanup;
}
vm->hasManagedSave = false;
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
/**
* qemuDumpWaitForCompletion:
* @vm: domain object
*
* If the query dump capability exists, then it's possible to start a
* guest memory dump operation using a thread via a 'detach' qualifier
* to the dump guest memory command. This allows the async check if the
* dump is done.
*
* Returns 0 on success, -1 on failure
*/
static int
qemuDumpWaitForCompletion(virDomainObj *vm)
{
qemuDomainObjPrivate *priv = vm->privateData;
qemuDomainJobPrivate *jobPriv = priv->job.privateData;
qemuDomainJobDataPrivate *privJobCurrent = priv->job.current->privateData;
VIR_DEBUG("Waiting for dump completion");
while (!jobPriv->dumpCompleted && !priv->job.abortJob) {
if (qemuDomainObjWait(vm) < 0)
return -1;
}
if (privJobCurrent->stats.dump.status == QEMU_MONITOR_DUMP_STATUS_FAILED) {
if (priv->job.error)
virReportError(VIR_ERR_OPERATION_FAILED,
_("memory-only dump failed: %s"),
priv->job.error);
else
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("memory-only dump failed for unknown reason"));
return -1;
}
qemuDomainJobDataUpdateTime(priv->job.current);
return 0;
}
static int
qemuDumpToFd(virQEMUDriver *driver,
virDomainObj *vm,
int fd,
virDomainAsyncJob asyncJob,
const char *dumpformat)
{
qemuDomainObjPrivate *priv = vm->privateData;
bool detach = false;
int ret = -1;
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DUMP_GUEST_MEMORY)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("dump-guest-memory is not supported"));
return -1;
}
detach = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DUMP_COMPLETED);
if (qemuSecuritySetImageFDLabel(driver->securityManager, vm->def, fd) < 0)
return -1;
if (detach) {
qemuDomainJobSetStatsType(priv->job.current,
QEMU_DOMAIN_JOB_STATS_TYPE_MEMDUMP);
} else {
g_clear_pointer(&priv->job.current, virDomainJobDataFree);
}
if (qemuDomainObjEnterMonitorAsync(vm, asyncJob) < 0)
return -1;
if (dumpformat) {
ret = qemuMonitorGetDumpGuestMemoryCapability(priv->mon, dumpformat);
if (ret <= 0) {
virReportError(VIR_ERR_INVALID_ARG,
_("unsupported dumpformat '%s' "
"for this QEMU binary"),
dumpformat);
qemuDomainObjExitMonitor(vm);
return -1;
}
}
ret = qemuMonitorDumpToFd(priv->mon, fd, dumpformat, detach);
qemuDomainObjExitMonitor(vm);
if (ret < 0)
return -1;
if (detach)
ret = qemuDumpWaitForCompletion(vm);
return ret;
}
static int
doCoreDump(virQEMUDriver *driver,
virDomainObj *vm,
const char *path,
unsigned int dump_flags,
unsigned int dumpformat)
{
int fd = -1;
int ret = -1;
virFileWrapperFd *wrapperFd = NULL;
int directFlag = 0;
bool needUnlink = false;
unsigned int flags = VIR_FILE_WRAPPER_NON_BLOCKING;
const char *memory_dump_format = NULL;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
g_autoptr(virCommand) compressor = NULL;
/* We reuse "save" flag for "dump" here. Then, we can support the same
* format in "save" and "dump". This path doesn't need the compression
* program to exist and can ignore the return value - it only cares to
* get the compressor */
ignore_value(qemuSaveImageGetCompressionProgram(cfg->dumpImageFormat,
&compressor,
"dump", true));
/* Create an empty file with appropriate ownership. */
if (dump_flags & VIR_DUMP_BYPASS_CACHE) {
flags |= VIR_FILE_WRAPPER_BYPASS_CACHE;
directFlag = virFileDirectFdFlag();
if (directFlag < 0) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("bypass cache unsupported by this system"));
goto cleanup;
}
}
if ((fd = virQEMUFileOpenAs(cfg->user, cfg->group, false, path,
O_CREAT | O_TRUNC | O_WRONLY | directFlag,
&needUnlink)) < 0)
goto cleanup;
if (!(wrapperFd = virFileWrapperFdNew(&fd, path, flags)))
goto cleanup;
if (dump_flags & VIR_DUMP_MEMORY_ONLY) {
if (!(memory_dump_format = qemuDumpFormatTypeToString(dumpformat))) {
virReportError(VIR_ERR_INVALID_ARG,
_("unknown dumpformat '%d'"), dumpformat);
goto cleanup;
}
/* qemu dumps in "elf" without dumpformat set */
if (STREQ(memory_dump_format, "elf"))
memory_dump_format = NULL;
if (qemuDumpToFd(driver, vm, fd, VIR_ASYNC_JOB_DUMP,
memory_dump_format) < 0)
goto cleanup;
} else {
if (dumpformat != VIR_DOMAIN_CORE_DUMP_FORMAT_RAW) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("kdump-compressed format is only supported with "
"memory-only dump"));
goto cleanup;
}
if (!qemuMigrationSrcIsAllowed(driver, vm, false, VIR_ASYNC_JOB_DUMP, 0))
goto cleanup;
if (qemuMigrationSrcToFile(driver, vm, fd, compressor,
VIR_ASYNC_JOB_DUMP) < 0)
goto cleanup;
}
if (VIR_CLOSE(fd) < 0) {
virReportSystemError(errno,
_("unable to close file %s"),
path);
goto cleanup;
}
if (qemuDomainFileWrapperFDClose(vm, wrapperFd) < 0)
goto cleanup;
ret = 0;
cleanup:
VIR_FORCE_CLOSE(fd);
if (qemuDomainFileWrapperFDClose(vm, wrapperFd) < 0)
ret = -1;
virFileWrapperFdFree(wrapperFd);
if (ret != 0 && needUnlink)
unlink(path);
return ret;
}
static int
qemuDomainCoreDumpWithFormat(virDomainPtr dom,
const char *path,
unsigned int dumpformat,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
qemuDomainObjPrivate *priv = NULL;
bool resume = false, paused = false;
int ret = -1;
virObjectEvent *event = NULL;
virCheckFlags(VIR_DUMP_LIVE | VIR_DUMP_CRASH |
VIR_DUMP_BYPASS_CACHE | VIR_DUMP_RESET |
VIR_DUMP_MEMORY_ONLY, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainCoreDumpWithFormatEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginAsyncJob(vm, VIR_ASYNC_JOB_DUMP,
VIR_DOMAIN_JOB_OPERATION_DUMP,
flags) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
priv = vm->privateData;
qemuDomainJobSetStatsType(priv->job.current,
QEMU_DOMAIN_JOB_STATS_TYPE_SAVEDUMP);
/* Migrate will always stop the VM, so the resume condition is
independent of whether the stop command is issued. */
resume = virDomainObjGetState(vm, NULL) == VIR_DOMAIN_RUNNING;
/* Pause domain for non-live dump */
if (!(flags & VIR_DUMP_LIVE) &&
virDomainObjGetState(vm, NULL) == VIR_DOMAIN_RUNNING) {
if (qemuProcessStopCPUs(driver, vm, VIR_DOMAIN_PAUSED_DUMP,
VIR_ASYNC_JOB_DUMP) < 0)
goto endjob;
paused = true;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("guest unexpectedly quit"));
goto endjob;
}
}
if ((ret = doCoreDump(driver, vm, path, flags, dumpformat)) < 0)
goto endjob;
paused = true;
endjob:
if ((ret == 0) && (flags & VIR_DUMP_CRASH)) {
qemuProcessStop(driver, vm, VIR_DOMAIN_SHUTOFF_CRASHED,
VIR_ASYNC_JOB_DUMP, 0);
virDomainAuditStop(vm, "crashed");
event = virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_CRASHED);
} else if (((resume && paused) || (flags & VIR_DUMP_RESET)) &&
virDomainObjIsActive(vm)) {
if ((ret == 0) && (flags & VIR_DUMP_RESET)) {
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorSystemReset(priv->mon);
qemuDomainObjExitMonitor(vm);
}
if (resume && virDomainObjIsActive(vm)) {
if (qemuProcessStartCPUs(driver, vm,
VIR_DOMAIN_RUNNING_UNPAUSED,
VIR_ASYNC_JOB_DUMP) < 0) {
event = virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_SUSPENDED,
VIR_DOMAIN_EVENT_SUSPENDED_API_ERROR);
if (virGetLastErrorCode() == VIR_ERR_OK)
virReportError(VIR_ERR_OPERATION_FAILED,
"%s", _("resuming after dump failed"));
}
}
}
qemuDomainObjEndAsyncJob(vm);
if (ret == 0 && flags & VIR_DUMP_CRASH)
qemuDomainRemoveInactive(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
return ret;
}
static int
qemuDomainCoreDump(virDomainPtr dom,
const char *path,
unsigned int flags)
{
return qemuDomainCoreDumpWithFormat(dom, path,
VIR_DOMAIN_CORE_DUMP_FORMAT_RAW,
flags);
}
static char *
qemuDomainScreenshot(virDomainPtr dom,
virStreamPtr st,
unsigned int screen,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
qemuDomainObjPrivate *priv;
g_autofree char *tmp = NULL;
int tmp_fd = -1;
size_t i;
const char *videoAlias = NULL;
char *ret = NULL;
bool unlink_tmp = false;
virCheckFlags(0, NULL);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
priv = vm->privateData;
if (virDomainScreenshotEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!vm->def->nvideos) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("no screens to take screenshot from"));
goto endjob;
}
if (screen) {
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_SCREENDUMP_DEVICE)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("qemu does not allow specifying screen ID"));
goto endjob;
}
for (i = 0; i < vm->def->nvideos; i++) {
const virDomainVideoDef *video = vm->def->videos[i];
if (screen < video->heads) {
videoAlias = video->info.alias;
break;
}
screen -= video->heads;
}
if (i == vm->def->nvideos) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("no such screen ID"));
goto endjob;
}
}
tmp = g_strdup_printf("%s/qemu.screendump.XXXXXX", priv->libDir);
if ((tmp_fd = g_mkstemp_full(tmp, O_RDWR | O_CLOEXEC, S_IRUSR | S_IWUSR)) == -1) {
virReportSystemError(errno, _("g_mkstemp(\"%s\") failed"), tmp);
goto endjob;
}
unlink_tmp = true;
qemuSecurityDomainSetPathLabel(driver, vm, tmp, false);
qemuDomainObjEnterMonitor(vm);
if (qemuMonitorScreendump(priv->mon, videoAlias, screen, tmp) < 0) {
qemuDomainObjExitMonitor(vm);
goto endjob;
}
qemuDomainObjExitMonitor(vm);
if (VIR_CLOSE(tmp_fd) < 0) {
virReportSystemError(errno, _("unable to close %s"), tmp);
goto endjob;
}
if (virFDStreamOpenFile(st, tmp, 0, 0, O_RDONLY) < 0) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("unable to open stream"));
goto endjob;
}
ret = g_strdup("image/x-portable-pixmap");
endjob:
VIR_FORCE_CLOSE(tmp_fd);
if (unlink_tmp) {
/* This may look pointless, since we're removing the file anyways, but
* it's crucial for AppArmor. Otherwise these temp files would
* accumulate in the domain's profile. */
qemuSecurityDomainRestorePathLabel(driver, vm, tmp);
unlink(tmp);
}
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static char *
getAutoDumpPath(virQEMUDriver *driver,
virDomainObj *vm)
{
const char *root = driver->embeddedRoot;
g_autofree char *domname = virDomainDefGetShortName(vm->def);
g_autoptr(GDateTime) now = g_date_time_new_now_local();
g_autofree char *nowstr = NULL;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
if (!domname)
return NULL;
cfg = virQEMUDriverGetConfig(driver);
nowstr = g_date_time_format(now, "%Y-%m-%d-%H:%M:%S");
if (root && !STRPREFIX(cfg->autoDumpPath, root)) {
g_autofree char * hash = virDomainDriverGenerateRootHash(QEMU_DRIVER_NAME, root);
return g_strdup_printf("%s/%s-%s-%s", cfg->autoDumpPath, hash, domname, nowstr);
}
return g_strdup_printf("%s/%s-%s", cfg->autoDumpPath, domname, nowstr);
}
static void
processWatchdogEvent(virQEMUDriver *driver,
virDomainObj *vm,
int action)
{
int ret;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
g_autofree char *dumpfile = getAutoDumpPath(driver, vm);
unsigned int flags = VIR_DUMP_MEMORY_ONLY;
if (!dumpfile)
return;
switch (action) {
case VIR_DOMAIN_WATCHDOG_ACTION_DUMP:
if (qemuDomainObjBeginAsyncJob(vm, VIR_ASYNC_JOB_DUMP,
VIR_DOMAIN_JOB_OPERATION_DUMP,
flags) < 0) {
return;
}
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
flags |= cfg->autoDumpBypassCache ? VIR_DUMP_BYPASS_CACHE: 0;
if ((ret = doCoreDump(driver, vm, dumpfile, flags,
VIR_DOMAIN_CORE_DUMP_FORMAT_RAW)) < 0)
virReportError(VIR_ERR_OPERATION_FAILED,
"%s", _("Dump failed"));
ret = qemuProcessStartCPUs(driver, vm,
VIR_DOMAIN_RUNNING_UNPAUSED,
VIR_ASYNC_JOB_DUMP);
if (ret < 0)
virReportError(VIR_ERR_OPERATION_FAILED,
"%s", _("Resuming after dump failed"));
break;
default:
return;
}
endjob:
qemuDomainObjEndAsyncJob(vm);
}
static int
doCoreDumpToAutoDumpPath(virQEMUDriver *driver,
virDomainObj *vm,
unsigned int flags)
{
int ret = -1;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
g_autofree char *dumpfile = getAutoDumpPath(driver, vm);
if (!dumpfile)
return -1;
flags |= cfg->autoDumpBypassCache ? VIR_DUMP_BYPASS_CACHE: 0;
if ((ret = doCoreDump(driver, vm, dumpfile, flags,
VIR_DOMAIN_CORE_DUMP_FORMAT_RAW)) < 0)
virReportError(VIR_ERR_OPERATION_FAILED,
"%s", _("Dump failed"));
return ret;
}
static void
qemuProcessGuestPanicEventInfo(virQEMUDriver *driver,
virDomainObj *vm,
qemuMonitorEventPanicInfo *info)
{
g_autofree char *msg = qemuMonitorGuestPanicEventInfoFormatMsg(info);
g_autofree char *timestamp = virTimeStringNow();
if (msg && timestamp)
qemuDomainLogAppendMessage(driver, vm, "%s: panic %s\n", timestamp, msg);
}
static void
processGuestPanicEvent(virQEMUDriver *driver,
virDomainObj *vm,
int action,
qemuMonitorEventPanicInfo *info)
{
qemuDomainObjPrivate *priv = vm->privateData;
virObjectEvent *event = NULL;
bool removeInactive = false;
unsigned long flags = VIR_DUMP_MEMORY_ONLY;
if (qemuDomainObjBeginAsyncJob(vm, VIR_ASYNC_JOB_DUMP,
VIR_DOMAIN_JOB_OPERATION_DUMP, flags) < 0)
return;
if (!virDomainObjIsActive(vm)) {
VIR_DEBUG("Ignoring GUEST_PANICKED event from inactive domain %s",
vm->def->name);
goto endjob;
}
if (info)
qemuProcessGuestPanicEventInfo(driver, vm, info);
virDomainObjSetState(vm, VIR_DOMAIN_CRASHED, VIR_DOMAIN_CRASHED_PANICKED);
event = virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_CRASHED,
VIR_DOMAIN_EVENT_CRASHED_PANICKED);
virObjectEventStateQueue(driver->domainEventState, event);
qemuDomainSaveStatus(vm);
if (virDomainLockProcessPause(driver->lockManager, vm, &priv->lockState) < 0)
VIR_WARN("Unable to release lease on %s", vm->def->name);
VIR_DEBUG("Preserving lock state '%s'", NULLSTR(priv->lockState));
switch (action) {
case VIR_DOMAIN_LIFECYCLE_ACTION_COREDUMP_DESTROY:
if (doCoreDumpToAutoDumpPath(driver, vm, flags) < 0)
goto endjob;
G_GNUC_FALLTHROUGH;
case VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY:
qemuProcessStop(driver, vm, VIR_DOMAIN_SHUTOFF_CRASHED,
VIR_ASYNC_JOB_DUMP, 0);
event = virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_CRASHED);
virObjectEventStateQueue(driver->domainEventState, event);
virDomainAuditStop(vm, "destroyed");
removeInactive = true;
break;
case VIR_DOMAIN_LIFECYCLE_ACTION_COREDUMP_RESTART:
if (doCoreDumpToAutoDumpPath(driver, vm, flags) < 0)
goto endjob;
G_GNUC_FALLTHROUGH;
case VIR_DOMAIN_LIFECYCLE_ACTION_RESTART:
qemuDomainSetFakeReboot(vm, true);
qemuProcessShutdownOrReboot(vm);
break;
case VIR_DOMAIN_LIFECYCLE_ACTION_PRESERVE:
/* the VM is kept around for debugging */
break;
default:
break;
}
endjob:
qemuDomainObjEndAsyncJob(vm);
if (removeInactive)
qemuDomainRemoveInactive(driver, vm);
}
static void
processDeviceDeletedEvent(virQEMUDriver *driver,
virDomainObj *vm,
const char *devAlias)
{
virDomainDeviceDef dev;
VIR_DEBUG("Removing device %s from domain %p %s",
devAlias, vm, vm->def->name);
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
return;
if (!virDomainObjIsActive(vm)) {
VIR_DEBUG("Domain is not running");
goto endjob;
}
if (STRPREFIX(devAlias, "vcpu")) {
qemuDomainRemoveVcpuAlias(vm, devAlias);
} else {
if (virDomainDefFindDevice(vm->def, devAlias, &dev, true) < 0)
goto endjob;
if (qemuDomainRemoveDevice(driver, vm, &dev) < 0)
goto endjob;
}
qemuDomainSaveStatus(vm);
endjob:
qemuDomainObjEndJob(vm);
}
static void
syncNicRxFilterMacAddr(char *ifname, virNetDevRxFilter *guestFilter,
virNetDevRxFilter *hostFilter)
{
char newMacStr[VIR_MAC_STRING_BUFLEN];
if (virMacAddrCmp(&hostFilter->mac, &guestFilter->mac)) {
virMacAddrFormat(&guestFilter->mac, newMacStr);
/* set new MAC address from guest to associated macvtap device */
if (virNetDevSetMAC(ifname, &guestFilter->mac) < 0) {
VIR_WARN("Couldn't set new MAC address %s to device %s "
"while responding to NIC_RX_FILTER_CHANGED",
newMacStr, ifname);
} else {
VIR_DEBUG("device %s MAC address set to %s", ifname, newMacStr);
}
}
}
static void
syncNicRxFilterGuestMulticast(char *ifname, virNetDevRxFilter *guestFilter,
virNetDevRxFilter *hostFilter)
{
size_t i, j;
bool found;
char macstr[VIR_MAC_STRING_BUFLEN];
for (i = 0; i < guestFilter->multicast.nTable; i++) {
found = false;
for (j = 0; j < hostFilter->multicast.nTable; j++) {
if (virMacAddrCmp(&guestFilter->multicast.table[i],
&hostFilter->multicast.table[j]) == 0) {
found = true;
break;
}
}
if (!found) {
virMacAddrFormat(&guestFilter->multicast.table[i], macstr);
if (virNetDevAddMulti(ifname, &guestFilter->multicast.table[i]) < 0) {
VIR_WARN("Couldn't add new multicast MAC address %s to "
"device %s while responding to NIC_RX_FILTER_CHANGED",
macstr, ifname);
} else {
VIR_DEBUG("Added multicast MAC %s to %s interface",
macstr, ifname);
}
}
}
}
static void
syncNicRxFilterHostMulticast(char *ifname, virNetDevRxFilter *guestFilter,
virNetDevRxFilter *hostFilter)
{
size_t i, j;
bool found;
char macstr[VIR_MAC_STRING_BUFLEN];
for (i = 0; i < hostFilter->multicast.nTable; i++) {
found = false;
for (j = 0; j < guestFilter->multicast.nTable; j++) {
if (virMacAddrCmp(&hostFilter->multicast.table[i],
&guestFilter->multicast.table[j]) == 0) {
found = true;
break;
}
}
if (!found) {
virMacAddrFormat(&hostFilter->multicast.table[i], macstr);
if (virNetDevDelMulti(ifname, &hostFilter->multicast.table[i]) < 0) {
VIR_WARN("Couldn't delete multicast MAC address %s from "
"device %s while responding to NIC_RX_FILTER_CHANGED",
macstr, ifname);
} else {
VIR_DEBUG("Deleted multicast MAC %s from %s interface",
macstr, ifname);
}
}
}
}
static void
syncNicRxFilterPromiscMode(char *ifname,
virNetDevRxFilter *guestFilter,
virNetDevRxFilter *hostFilter)
{
bool promisc;
bool setpromisc = false;
/* Set macvtap promisc mode to true if the guest has vlans defined */
/* or synchronize the macvtap promisc mode if different from guest */
if (guestFilter->vlan.nTable > 0) {
if (!hostFilter->promiscuous) {
setpromisc = true;
promisc = true;
}
} else if (hostFilter->promiscuous != guestFilter->promiscuous) {
setpromisc = true;
promisc = guestFilter->promiscuous;
}
if (setpromisc) {
if (virNetDevSetPromiscuous(ifname, promisc) < 0) {
VIR_WARN("Couldn't set PROMISC flag to %s for device %s "
"while responding to NIC_RX_FILTER_CHANGED",
promisc ? "true" : "false", ifname);
}
}
}
static void
syncNicRxFilterMultiMode(char *ifname, virNetDevRxFilter *guestFilter,
virNetDevRxFilter *hostFilter)
{
if (hostFilter->multicast.mode != guestFilter->multicast.mode ||
(guestFilter->multicast.overflow &&
guestFilter->multicast.mode == VIR_NETDEV_RX_FILTER_MODE_NORMAL)) {
switch (guestFilter->multicast.mode) {
case VIR_NETDEV_RX_FILTER_MODE_ALL:
if (virNetDevSetRcvAllMulti(ifname, true) < 0) {
VIR_WARN("Couldn't set allmulticast flag to 'on' for "
"device %s while responding to "
"NIC_RX_FILTER_CHANGED", ifname);
}
break;
case VIR_NETDEV_RX_FILTER_MODE_NORMAL:
if (guestFilter->multicast.overflow &&
(hostFilter->multicast.mode == VIR_NETDEV_RX_FILTER_MODE_ALL)) {
break;
}
if (virNetDevSetRcvMulti(ifname, true) < 0) {
VIR_WARN("Couldn't set multicast flag to 'on' for "
"device %s while responding to "
"NIC_RX_FILTER_CHANGED", ifname);
}
if (virNetDevSetRcvAllMulti(ifname,
guestFilter->multicast.overflow) < 0) {
VIR_WARN("Couldn't set allmulticast flag to '%s' for "
"device %s while responding to "
"NIC_RX_FILTER_CHANGED",
virTristateSwitchTypeToString(virTristateSwitchFromBool(guestFilter->multicast.overflow)),
ifname);
}
break;
case VIR_NETDEV_RX_FILTER_MODE_NONE:
if (virNetDevSetRcvAllMulti(ifname, false) < 0) {
VIR_WARN("Couldn't set allmulticast flag to 'off' for "
"device %s while responding to "
"NIC_RX_FILTER_CHANGED", ifname);
}
if (virNetDevSetRcvMulti(ifname, false) < 0) {
VIR_WARN("Couldn't set multicast flag to 'off' for "
"device %s while responding to "
"NIC_RX_FILTER_CHANGED",
ifname);
}
break;
}
}
}
static void
syncNicRxFilterDeviceOptions(char *ifname, virNetDevRxFilter *guestFilter,
virNetDevRxFilter *hostFilter)
{
syncNicRxFilterPromiscMode(ifname, guestFilter, hostFilter);
syncNicRxFilterMultiMode(ifname, guestFilter, hostFilter);
}
static void
syncNicRxFilterMulticast(char *ifname,
virNetDevRxFilter *guestFilter,
virNetDevRxFilter *hostFilter)
{
syncNicRxFilterGuestMulticast(ifname, guestFilter, hostFilter);
syncNicRxFilterHostMulticast(ifname, guestFilter, hostFilter);
}
static void
processNicRxFilterChangedEvent(virDomainObj *vm,
const char *devAlias)
{
qemuDomainObjPrivate *priv = vm->privateData;
virDomainDeviceDef dev;
virDomainNetDef *def;
virNetDevRxFilter *guestFilter = NULL;
virNetDevRxFilter *hostFilter = NULL;
int ret;
VIR_DEBUG("Received NIC_RX_FILTER_CHANGED event for device %s "
"from domain %p %s",
devAlias, vm, vm->def->name);
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
VIR_DEBUG("Domain is not running");
goto endjob;
}
if (virDomainDefFindDevice(vm->def, devAlias, &dev, true) < 0) {
VIR_WARN("NIC_RX_FILTER_CHANGED event received for "
"non-existent device %s in domain %s",
devAlias, vm->def->name);
goto endjob;
}
if (dev.type != VIR_DOMAIN_DEVICE_NET) {
VIR_WARN("NIC_RX_FILTER_CHANGED event received for "
"non-network device %s in domain %s",
devAlias, vm->def->name);
goto endjob;
}
def = dev.data.net;
if (!virDomainNetGetActualTrustGuestRxFilters(def)) {
VIR_DEBUG("ignore NIC_RX_FILTER_CHANGED event for network "
"device %s in domain %s",
def->info.alias, vm->def->name);
/* not sending "query-rx-filter" will also suppress any
* further NIC_RX_FILTER_CHANGED events for this device
*/
goto endjob;
}
/* handle the event - send query-rx-filter and respond to it. */
VIR_DEBUG("process NIC_RX_FILTER_CHANGED event for network "
"device %s in domain %s", def->info.alias, vm->def->name);
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorQueryRxFilter(priv->mon, devAlias, &guestFilter);
qemuDomainObjExitMonitor(vm);
if (ret < 0)
goto endjob;
if (virDomainNetGetActualType(def) == VIR_DOMAIN_NET_TYPE_DIRECT) {
if (virNetDevGetRxFilter(def->ifname, &hostFilter)) {
VIR_WARN("Couldn't get current RX filter for device %s "
"while responding to NIC_RX_FILTER_CHANGED",
def->ifname);
goto endjob;
}
/* For macvtap connections, set the following macvtap network device
* attributes to match those of the guest network device:
* - MAC address
* - Multicast MAC address table
* - Device options:
* - PROMISC
* - MULTICAST
* - ALLMULTI
*/
syncNicRxFilterMacAddr(def->ifname, guestFilter, hostFilter);
syncNicRxFilterMulticast(def->ifname, guestFilter, hostFilter);
syncNicRxFilterDeviceOptions(def->ifname, guestFilter, hostFilter);
}
if (virDomainNetGetActualType(def) == VIR_DOMAIN_NET_TYPE_NETWORK) {
const char *brname = virDomainNetGetActualBridgeName(def);
/* For libivrt network connections, set the following TUN/TAP network
* device attributes to match those of the guest network device:
* - QoS filters (which are based on MAC address)
*/
if (virDomainNetGetActualBandwidth(def) &&
def->data.network.actual &&
virNetDevBandwidthUpdateFilter(brname, &guestFilter->mac,
def->data.network.actual->class_id) < 0)
goto endjob;
}
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virNetDevRxFilterFree(hostFilter);
virNetDevRxFilterFree(guestFilter);
}
static void
processSerialChangedEvent(virQEMUDriver *driver,
virDomainObj *vm,
const char *devAlias,
bool connected)
{
virDomainChrDeviceState newstate;
virObjectEvent *event = NULL;
virDomainDeviceDef dev;
qemuDomainObjPrivate *priv = vm->privateData;
if (connected)
newstate = VIR_DOMAIN_CHR_DEVICE_STATE_CONNECTED;
else
newstate = VIR_DOMAIN_CHR_DEVICE_STATE_DISCONNECTED;
VIR_DEBUG("Changing serial port state %s in domain %p %s",
devAlias, vm, vm->def->name);
if (newstate == VIR_DOMAIN_CHR_DEVICE_STATE_DISCONNECTED &&
virDomainObjIsActive(vm) && priv->agent) {
/* peek into the domain definition to find the channel */
if (virDomainDefFindDevice(vm->def, devAlias, &dev, true) == 0 &&
dev.type == VIR_DOMAIN_DEVICE_CHR &&
dev.data.chr->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CHANNEL &&
dev.data.chr->targetType == VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO &&
STREQ_NULLABLE(dev.data.chr->target.name, "org.qemu.guest_agent.0"))
/* Close agent monitor early, so that other threads
* waiting for the agent to reply can finish and our
* job we acquire below can succeed. */
qemuAgentNotifyClose(priv->agent);
/* now discard the data, since it may possibly change once we unlock
* while entering the job */
memset(&dev, 0, sizeof(dev));
}
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY_MIGRATION_SAFE) < 0)
return;
if (!virDomainObjIsActive(vm)) {
VIR_DEBUG("Domain is not running");
goto endjob;
}
if (virDomainDefFindDevice(vm->def, devAlias, &dev, true) < 0)
goto endjob;
/* we care only about certain devices */
if (dev.type != VIR_DOMAIN_DEVICE_CHR ||
dev.data.chr->deviceType != VIR_DOMAIN_CHR_DEVICE_TYPE_CHANNEL ||
dev.data.chr->targetType != VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO)
goto endjob;
dev.data.chr->state = newstate;
qemuDomainSaveStatus(vm);
if (STREQ_NULLABLE(dev.data.chr->target.name, "org.qemu.guest_agent.0")) {
if (newstate == VIR_DOMAIN_CHR_DEVICE_STATE_CONNECTED) {
if (qemuConnectAgent(driver, vm) < 0)
goto endjob;
} else {
if (priv->agent) {
g_clear_pointer(&priv->agent, qemuAgentClose);
}
priv->agentError = false;
}
event = virDomainEventAgentLifecycleNewFromObj(vm, newstate,
VIR_CONNECT_DOMAIN_EVENT_AGENT_LIFECYCLE_REASON_CHANNEL);
virObjectEventStateQueue(driver->domainEventState, event);
}
endjob:
qemuDomainObjEndJob(vm);
}
static void
processJobStatusChangeEvent(virDomainObj *vm,
qemuBlockJobData *job)
{
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
return;
if (!virDomainObjIsActive(vm)) {
VIR_DEBUG("Domain is not running");
goto endjob;
}
qemuBlockJobUpdate(vm, job, VIR_ASYNC_JOB_NONE);
endjob:
qemuDomainObjEndJob(vm);
}
static void
processMonitorEOFEvent(virQEMUDriver *driver,
virDomainObj *vm)
{
qemuDomainObjPrivate *priv = vm->privateData;
int eventReason = VIR_DOMAIN_EVENT_STOPPED_SHUTDOWN;
int stopReason = VIR_DOMAIN_SHUTOFF_SHUTDOWN;
const char *auditReason = "shutdown";
unsigned int stopFlags = 0;
virObjectEvent *event = NULL;
if (qemuProcessBeginStopJob(vm, VIR_JOB_DESTROY, true) < 0)
return;
if (!virDomainObjIsActive(vm)) {
VIR_DEBUG("Domain %p '%s' is not active, ignoring EOF",
vm, vm->def->name);
goto endjob;
}
if (virDomainObjGetState(vm, NULL) != VIR_DOMAIN_SHUTDOWN) {
VIR_DEBUG("Monitor connection to '%s' closed without SHUTDOWN event; "
"assuming the domain crashed", vm->def->name);
eventReason = VIR_DOMAIN_EVENT_STOPPED_FAILED;
stopReason = VIR_DOMAIN_SHUTOFF_CRASHED;
auditReason = "failed";
}
if (priv->job.asyncJob == VIR_ASYNC_JOB_MIGRATION_IN) {
stopFlags |= VIR_QEMU_PROCESS_STOP_MIGRATED;
qemuMigrationDstErrorSave(driver, vm->def->name,
qemuMonitorLastError(priv->mon));
}
event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_STOPPED,
eventReason);
qemuProcessStop(driver, vm, stopReason, VIR_ASYNC_JOB_NONE, stopFlags);
virDomainAuditStop(vm, auditReason);
virObjectEventStateQueue(driver->domainEventState, event);
endjob:
qemuDomainRemoveInactive(driver, vm);
qemuDomainObjEndJob(vm);
}
static void
processPRDisconnectEvent(virDomainObj *vm)
{
qemuDomainObjPrivate *priv = vm->privateData;
if (!virDomainObjIsActive(vm))
return;
if (!priv->prDaemonRunning &&
qemuDomainDefHasManagedPR(vm))
qemuProcessStartManagedPRDaemon(vm);
}
static void
processRdmaGidStatusChangedEvent(virDomainObj *vm,
qemuMonitorRdmaGidStatus *info)
{
unsigned int prefix_len;
virSocketAddr addr;
g_autofree char *addrStr = NULL;
int rc;
if (!virDomainObjIsActive(vm))
return;
VIR_DEBUG("netdev=%s, gid_status=%d, subnet_prefix=0x%llx, interface_id=0x%llx",
info->netdev, info->gid_status, info->subnet_prefix,
info->interface_id);
if (info->subnet_prefix) {
uint32_t ipv6[4] = {0};
prefix_len = 64;
memcpy(&ipv6[0], &info->subnet_prefix, sizeof(info->subnet_prefix));
memcpy(&ipv6[2], &info->interface_id, sizeof(info->interface_id));
virSocketAddrSetIPv6AddrNetOrder(&addr, ipv6);
} else {
prefix_len = 24;
virSocketAddrSetIPv4AddrNetOrder(&addr, info->interface_id >> 32);
}
if (!(addrStr = virSocketAddrFormat(&addr)))
return;
if (info->gid_status) {
VIR_DEBUG("Adding %s to %s", addrStr, info->netdev);
rc = virNetDevIPAddrAdd(info->netdev, &addr, NULL, prefix_len);
} else {
VIR_DEBUG("Removing %s from %s", addrStr, info->netdev);
rc = virNetDevIPAddrDel(info->netdev, &addr, prefix_len);
}
if (rc < 0)
VIR_WARN("Fail to update address %s to %s", addrStr, info->netdev);
}
static void
processGuestCrashloadedEvent(virQEMUDriver *driver,
virDomainObj *vm)
{
virObjectEvent *event = NULL;
event = virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_CRASHED,
VIR_DOMAIN_EVENT_CRASHED_CRASHLOADED);
virObjectEventStateQueue(driver->domainEventState, event);
}
static void
processMemoryDeviceSizeChange(virQEMUDriver *driver,
virDomainObj *vm,
qemuMonitorMemoryDeviceSizeChange *info)
{
virDomainMemoryDef *mem = NULL;
virObjectEvent *event = NULL;
unsigned long long balloon;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
return;
if (!virDomainObjIsActive(vm)) {
VIR_DEBUG("Domain is not running");
goto endjob;
}
mem = virDomainMemoryFindByDeviceAlias(vm->def, info->devAlias);
if (!mem) {
VIR_DEBUG("Memory device '%s' not found", info->devAlias);
goto endjob;
}
/* If this looks weird it's because it is. The balloon size
* as reported by QEMU does not include any of @currentsize.
* It really contains just the balloon size. But in domain
* definition we want to report also sum of @currentsize. Do
* a bit of math to fix the domain definition. */
balloon = vm->def->mem.cur_balloon - mem->currentsize;
mem->currentsize = VIR_DIV_UP(info->size, 1024);
balloon += mem->currentsize;
vm->def->mem.cur_balloon = balloon;
event = virDomainEventMemoryDeviceSizeChangeNewFromObj(vm,
info->devAlias,
mem->currentsize);
endjob:
qemuDomainObjEndJob(vm);
virObjectEventStateQueue(driver->domainEventState, event);
}
static void qemuProcessEventHandler(void *data, void *opaque)
{
struct qemuProcessEvent *processEvent = data;
virDomainObj *vm = processEvent->vm;
virQEMUDriver *driver = opaque;
VIR_DEBUG("vm=%p, event=%d", vm, processEvent->eventType);
virObjectLock(vm);
switch (processEvent->eventType) {
case QEMU_PROCESS_EVENT_WATCHDOG:
processWatchdogEvent(driver, vm, processEvent->action);
break;
case QEMU_PROCESS_EVENT_GUESTPANIC:
processGuestPanicEvent(driver, vm, processEvent->action,
processEvent->data);
break;
case QEMU_PROCESS_EVENT_DEVICE_DELETED:
processDeviceDeletedEvent(driver, vm, processEvent->data);
break;
case QEMU_PROCESS_EVENT_NIC_RX_FILTER_CHANGED:
processNicRxFilterChangedEvent(vm, processEvent->data);
break;
case QEMU_PROCESS_EVENT_SERIAL_CHANGED:
processSerialChangedEvent(driver, vm, processEvent->data,
processEvent->action);
break;
case QEMU_PROCESS_EVENT_JOB_STATUS_CHANGE:
processJobStatusChangeEvent(vm, processEvent->data);
break;
case QEMU_PROCESS_EVENT_MONITOR_EOF:
processMonitorEOFEvent(driver, vm);
break;
case QEMU_PROCESS_EVENT_PR_DISCONNECT:
processPRDisconnectEvent(vm);
break;
case QEMU_PROCESS_EVENT_RDMA_GID_STATUS_CHANGED:
processRdmaGidStatusChangedEvent(vm, processEvent->data);
break;
case QEMU_PROCESS_EVENT_GUEST_CRASHLOADED:
processGuestCrashloadedEvent(driver, vm);
break;
case QEMU_PROCESS_EVENT_MEMORY_DEVICE_SIZE_CHANGE:
processMemoryDeviceSizeChange(driver, vm, processEvent->data);
break;
case QEMU_PROCESS_EVENT_UNATTENDED_MIGRATION:
qemuMigrationProcessUnattended(driver, vm,
processEvent->action,
processEvent->status);
break;
case QEMU_PROCESS_EVENT_LAST:
break;
}
virDomainObjEndAPI(&vm);
qemuProcessEventFree(processEvent);
}
static int
qemuDomainSetVcpusAgent(virDomainObj *vm,
unsigned int nvcpus)
{
qemuAgentCPUInfo *cpuinfo = NULL;
qemuAgent *agent;
int ncpuinfo;
int ret = -1;
if (!qemuDomainAgentAvailable(vm, true))
goto cleanup;
if (nvcpus > virDomainDefGetVcpus(vm->def)) {
virReportError(VIR_ERR_INVALID_ARG,
_("requested vcpu count is greater than the count "
"of enabled vcpus in the domain: %d > %d"),
nvcpus, virDomainDefGetVcpus(vm->def));
goto cleanup;
}
agent = qemuDomainObjEnterAgent(vm);
ncpuinfo = qemuAgentGetVCPUs(agent, &cpuinfo);
qemuDomainObjExitAgent(vm, agent);
agent = NULL;
if (ncpuinfo < 0)
goto cleanup;
if (qemuAgentUpdateCPUInfo(nvcpus, cpuinfo, ncpuinfo) < 0)
goto cleanup;
if (!qemuDomainAgentAvailable(vm, true))
goto cleanup;
agent = qemuDomainObjEnterAgent(vm);
ret = qemuAgentSetVCPUs(agent, cpuinfo, ncpuinfo);
qemuDomainObjExitAgent(vm, agent);
cleanup:
VIR_FREE(cpuinfo);
return ret;
}
static int
qemuDomainSetVcpusMax(virQEMUDriver *driver,
virDomainObj *vm,
virDomainDef *def,
virDomainDef *persistentDef,
unsigned int nvcpus)
{
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
qemuDomainObjPrivate *priv = vm->privateData;
unsigned int topologycpus;
if (def) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("maximum vcpu count of a live domain can't be modified"));
return -1;
}
if (virDomainNumaGetCPUCountTotal(persistentDef->numa) > nvcpus) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("Number of CPUs in <numa> exceeds the desired "
"maximum vcpu count"));
return -1;
}
if (virDomainDefGetVcpusTopology(persistentDef, &topologycpus) == 0 &&
nvcpus != topologycpus) {
/* allow setting a valid vcpu count for the topology so an invalid
* setting may be corrected via this API */
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("CPU topology doesn't match the desired vcpu count"));
return -1;
}
/* ordering information may become invalid, thus clear it */
virDomainDefVcpuOrderClear(persistentDef);
if (virDomainDefSetVcpusMax(persistentDef, nvcpus, driver->xmlopt) < 0)
return -1;
if (qemuDomainDefNumaCPUsRectify(persistentDef, priv->qemuCaps) < 0)
return -1;
if (virDomainDefSave(persistentDef, driver->xmlopt, cfg->configDir) < 0)
return -1;
return 0;
}
static int
qemuDomainSetVcpusFlags(virDomainPtr dom,
unsigned int nvcpus,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
virDomainDef *def;
virDomainDef *persistentDef;
bool hotpluggable = !!(flags & VIR_DOMAIN_VCPU_HOTPLUGGABLE);
bool useAgent = !!(flags & VIR_DOMAIN_VCPU_GUEST);
int ret = -1;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG |
VIR_DOMAIN_VCPU_MAXIMUM |
VIR_DOMAIN_VCPU_GUEST |
VIR_DOMAIN_VCPU_HOTPLUGGABLE, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainSetVcpusFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (useAgent) {
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_MODIFY) < 0)
goto cleanup;
} else {
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
}
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
if (useAgent)
ret = qemuDomainSetVcpusAgent(vm, nvcpus);
else if (flags & VIR_DOMAIN_VCPU_MAXIMUM)
ret = qemuDomainSetVcpusMax(driver, vm, def, persistentDef, nvcpus);
else
ret = qemuDomainSetVcpusInternal(driver, vm, def, persistentDef,
nvcpus, hotpluggable);
endjob:
if (useAgent)
qemuDomainObjEndAgentJob(vm);
else
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainSetVcpus(virDomainPtr dom, unsigned int nvcpus)
{
return qemuDomainSetVcpusFlags(dom, nvcpus, VIR_DOMAIN_AFFECT_LIVE);
}
static int
qemuDomainPinVcpuLive(virDomainObj *vm,
virDomainDef *def,
int vcpu,
virQEMUDriver *driver,
virBitmap *cpumap)
{
g_autoptr(virBitmap) tmpmap = NULL;
virDomainVcpuDef *vcpuinfo;
qemuDomainObjPrivate *priv = vm->privateData;
g_autoptr(virCgroup) cgroup_vcpu = NULL;
g_autofree char *str = NULL;
virObjectEvent *event = NULL;
char paramField[VIR_TYPED_PARAM_FIELD_LENGTH] = "";
virTypedParameterPtr eventParams = NULL;
int eventNparams = 0;
int eventMaxparams = 0;
int ret = -1;
if (!qemuDomainHasVcpuPids(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cpu affinity is not supported"));
goto cleanup;
}
if (!(vcpuinfo = virDomainDefGetVcpu(def, vcpu))) {
virReportError(VIR_ERR_INVALID_ARG,
_("vcpu %d is out of range of live cpu count %d"),
vcpu, virDomainDefGetVcpusMax(def));
goto cleanup;
}
tmpmap = virBitmapNewCopy(cpumap);
if (!(str = virBitmapFormat(cpumap)))
goto cleanup;
if (vcpuinfo->online) {
/* Configure the corresponding cpuset cgroup before set affinity. */
if (virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPUSET)) {
if (virCgroupNewThread(priv->cgroup, VIR_CGROUP_THREAD_VCPU, vcpu,
false, &cgroup_vcpu) < 0)
goto cleanup;
if (virDomainCgroupSetupCpusetCpus(cgroup_vcpu, cpumap) < 0)
goto cleanup;
}
if (virProcessSetAffinity(qemuDomainGetVcpuPid(vm, vcpu),
cpumap, false) < 0)
goto cleanup;
}
virBitmapFree(vcpuinfo->cpumask);
vcpuinfo->cpumask = g_steal_pointer(&tmpmap);
qemuDomainSaveStatus(vm);
if (g_snprintf(paramField, VIR_TYPED_PARAM_FIELD_LENGTH,
VIR_DOMAIN_TUNABLE_CPU_VCPUPIN, vcpu) < 0) {
goto cleanup;
}
if (virTypedParamsAddString(&eventParams, &eventNparams,
&eventMaxparams, paramField, str) < 0)
goto cleanup;
event = virDomainEventTunableNewFromObj(vm, eventParams, eventNparams);
ret = 0;
cleanup:
virObjectEventStateQueue(driver->domainEventState, event);
return ret;
}
static int
qemuDomainPinVcpuFlags(virDomainPtr dom,
unsigned int vcpu,
unsigned char *cpumap,
int maplen,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
virDomainDef *def;
virDomainDef *persistentDef;
int ret = -1;
g_autoptr(virBitmap) pcpumap = NULL;
virDomainVcpuDef *vcpuinfo = NULL;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
cfg = virQEMUDriverGetConfig(driver);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainPinVcpuFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
if (persistentDef &&
!(vcpuinfo = virDomainDefGetVcpu(persistentDef, vcpu))) {
virReportError(VIR_ERR_INVALID_ARG,
_("vcpu %d is out of range of persistent cpu count %d"),
vcpu, virDomainDefGetVcpus(persistentDef));
goto endjob;
}
if (!(pcpumap = virBitmapNewData(cpumap, maplen)))
goto endjob;
if (virBitmapIsAllClear(pcpumap)) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("Empty cpu list for pinning"));
goto endjob;
}
if (def &&
qemuDomainPinVcpuLive(vm, def, vcpu, driver, pcpumap) < 0)
goto endjob;
if (persistentDef) {
virBitmapFree(vcpuinfo->cpumask);
vcpuinfo->cpumask = g_steal_pointer(&pcpumap);
ret = virDomainDefSave(persistentDef, driver->xmlopt, cfg->configDir);
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainPinVcpu(virDomainPtr dom,
unsigned int vcpu,
unsigned char *cpumap,
int maplen)
{
return qemuDomainPinVcpuFlags(dom, vcpu, cpumap, maplen,
VIR_DOMAIN_AFFECT_LIVE);
}
static int
qemuDomainGetVcpuPinInfo(virDomainPtr dom,
int ncpumaps,
unsigned char *cpumaps,
int maplen,
unsigned int flags)
{
virDomainObj *vm = NULL;
virDomainDef *def;
bool live;
int ret = -1;
g_autoptr(virBitmap) hostcpus = NULL;
virBitmap *autoCpuset = NULL;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainGetVcpuPinInfoEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!(def = virDomainObjGetOneDefState(vm, flags, &live)))
goto cleanup;
if (!(hostcpus = virHostCPUGetAvailableCPUsBitmap()))
goto cleanup;
if (live)
autoCpuset = QEMU_DOMAIN_PRIVATE(vm)->autoCpuset;
ret = virDomainDefGetVcpuPinInfoHelper(def, maplen, ncpumaps, cpumaps,
hostcpus, autoCpuset);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainPinEmulator(virDomainPtr dom,
unsigned char *cpumap,
int maplen,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
g_autoptr(virCgroup) cgroup_emulator = NULL;
virDomainDef *def;
virDomainDef *persistentDef;
int ret = -1;
qemuDomainObjPrivate *priv;
g_autoptr(virBitmap) pcpumap = NULL;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virObjectEvent *event = NULL;
g_autofree char *str = NULL;
virTypedParameterPtr eventParams = NULL;
int eventNparams = 0;
int eventMaxparams = 0;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
cfg = virQEMUDriverGetConfig(driver);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainPinEmulatorEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
priv = vm->privateData;
if (!(pcpumap = virBitmapNewData(cpumap, maplen)))
goto endjob;
if (virBitmapIsAllClear(pcpumap)) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("Empty cpu list for pinning"));
goto endjob;
}
if (def) {
if (virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPUSET)) {
if (virCgroupNewThread(priv->cgroup, VIR_CGROUP_THREAD_EMULATOR,
0, false, &cgroup_emulator) < 0)
goto endjob;
if (virDomainCgroupSetupCpusetCpus(cgroup_emulator, pcpumap) < 0) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("failed to set cpuset.cpus in cgroup"
" for emulator threads"));
goto endjob;
}
}
if (virProcessSetAffinity(vm->pid, pcpumap, false) < 0)
goto endjob;
virBitmapFree(def->cputune.emulatorpin);
def->cputune.emulatorpin = virBitmapNewCopy(pcpumap);
qemuDomainSaveStatus(vm);
str = virBitmapFormat(pcpumap);
if (virTypedParamsAddString(&eventParams, &eventNparams,
&eventMaxparams,
VIR_DOMAIN_TUNABLE_CPU_EMULATORPIN,
str) < 0)
goto endjob;
event = virDomainEventTunableNewFromDom(dom, eventParams, eventNparams);
}
if (persistentDef) {
virBitmapFree(persistentDef->cputune.emulatorpin);
persistentDef->cputune.emulatorpin = virBitmapNewCopy(pcpumap);
ret = virDomainDefSave(persistentDef, driver->xmlopt, cfg->configDir);
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virObjectEventStateQueue(driver->domainEventState, event);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetEmulatorPinInfo(virDomainPtr dom,
unsigned char *cpumaps,
int maplen,
unsigned int flags)
{
virDomainObj *vm = NULL;
virDomainDef *def;
bool live;
int ret = -1;
virBitmap *cpumask = NULL;
g_autoptr(virBitmap) bitmap = NULL;
virBitmap *autoCpuset = NULL;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainGetEmulatorPinInfoEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!(def = virDomainObjGetOneDefState(vm, flags, &live)))
goto cleanup;
if (live)
autoCpuset = QEMU_DOMAIN_PRIVATE(vm)->autoCpuset;
if (def->cputune.emulatorpin) {
cpumask = def->cputune.emulatorpin;
} else if (def->cpumask) {
cpumask = def->cpumask;
} else if (vm->def->placement_mode == VIR_DOMAIN_CPU_PLACEMENT_MODE_AUTO &&
autoCpuset) {
cpumask = autoCpuset;
} else {
if (!(bitmap = virHostCPUGetAvailableCPUsBitmap()))
goto cleanup;
cpumask = bitmap;
}
virBitmapToDataBuf(cpumask, cpumaps, maplen);
ret = 1;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetVcpus(virDomainPtr dom,
virVcpuInfoPtr info,
int maxinfo,
unsigned char *cpumaps,
int maplen)
{
virDomainObj *vm;
int ret = -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainGetVcpusEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot retrieve vcpu information for inactive domain"));
goto cleanup;
}
ret = qemuDomainHelperGetVcpus(vm, info, NULL, NULL, maxinfo, cpumaps, maplen);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetVcpusFlags(virDomainPtr dom, unsigned int flags)
{
virDomainObj *vm;
virDomainDef *def;
int ret = -1;
qemuAgentCPUInfo *cpuinfo = NULL;
qemuAgent *agent;
int ncpuinfo = -1;
size_t i;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG |
VIR_DOMAIN_VCPU_MAXIMUM |
VIR_DOMAIN_VCPU_GUEST, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainGetVcpusFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (!(def = virDomainObjGetOneDef(vm, flags)))
goto cleanup;
if (flags & VIR_DOMAIN_VCPU_GUEST) {
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_QUERY) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("vCPU count provided by the guest agent can only be "
"requested for live domains"));
goto endjob;
}
if (!qemuDomainAgentAvailable(vm, true))
goto endjob;
agent = qemuDomainObjEnterAgent(vm);
ncpuinfo = qemuAgentGetVCPUs(agent, &cpuinfo);
qemuDomainObjExitAgent(vm, agent);
endjob:
qemuDomainObjEndAgentJob(vm);
if (ncpuinfo < 0)
goto cleanup;
if (flags & VIR_DOMAIN_VCPU_MAXIMUM) {
ret = ncpuinfo;
goto cleanup;
}
/* count the online vcpus */
ret = 0;
for (i = 0; i < ncpuinfo; i++) {
if (cpuinfo[i].online)
ret++;
}
} else {
if (flags & VIR_DOMAIN_VCPU_MAXIMUM)
ret = virDomainDefGetVcpusMax(def);
else
ret = virDomainDefGetVcpus(def);
}
cleanup:
virDomainObjEndAPI(&vm);
VIR_FREE(cpuinfo);
return ret;
}
static int
qemuDomainGetMaxVcpus(virDomainPtr dom)
{
return qemuDomainGetVcpusFlags(dom, (VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_VCPU_MAXIMUM));
}
static int
qemuDomainGetIOThreadsMon(virDomainObj *vm,
qemuMonitorIOThreadInfo ***iothreads,
int *niothreads)
{
qemuDomainObjPrivate *priv = vm->privateData;
int ret = -1;
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorGetIOThreads(priv->mon, iothreads, niothreads);
qemuDomainObjExitMonitor(vm);
return ret;
}
static int
qemuDomainGetIOThreadsLive(virDomainObj *vm,
virDomainIOThreadInfoPtr **info)
{
qemuDomainObjPrivate *priv;
qemuMonitorIOThreadInfo **iothreads = NULL;
virDomainIOThreadInfoPtr *info_ret = NULL;
int niothreads = 0;
size_t i;
int ret = -1;
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot list IOThreads for an inactive domain"));
goto endjob;
}
priv = vm->privateData;
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_OBJECT_IOTHREAD)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("IOThreads not supported with this binary"));
goto endjob;
}
if ((ret = qemuDomainGetIOThreadsMon(vm, &iothreads, &niothreads)) < 0)
goto endjob;
/* Nothing to do */
if (niothreads == 0) {
ret = 0;
goto endjob;
}
info_ret = g_new0(virDomainIOThreadInfoPtr, niothreads);
for (i = 0; i < niothreads; i++) {
g_autoptr(virBitmap) map = NULL;
info_ret[i] = g_new0(virDomainIOThreadInfo, 1);
info_ret[i]->iothread_id = iothreads[i]->iothread_id;
if (!(map = virProcessGetAffinity(iothreads[i]->thread_id)))
goto endjob;
if (virBitmapToData(map, &info_ret[i]->cpumap, &info_ret[i]->cpumaplen) < 0)
goto endjob;
}
*info = g_steal_pointer(&info_ret);
ret = niothreads;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
if (info_ret) {
for (i = 0; i < niothreads; i++)
virDomainIOThreadInfoFree(info_ret[i]);
VIR_FREE(info_ret);
}
if (iothreads) {
for (i = 0; i < niothreads; i++)
VIR_FREE(iothreads[i]);
VIR_FREE(iothreads);
}
return ret;
}
static int
qemuDomainGetIOThreadInfo(virDomainPtr dom,
virDomainIOThreadInfoPtr **info,
unsigned int flags)
{
virDomainObj *vm;
virDomainDef *targetDef = NULL;
int ret = -1;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainGetIOThreadInfoEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjGetDefs(vm, flags, NULL, &targetDef) < 0)
goto cleanup;
if (!targetDef)
ret = qemuDomainGetIOThreadsLive(vm, info);
else
ret = virDomainDriverGetIOThreadsConfig(targetDef, info, 0);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainPinIOThread(virDomainPtr dom,
unsigned int iothread_id,
unsigned char *cpumap,
int maplen,
unsigned int flags)
{
int ret = -1;
virQEMUDriver *driver = dom->conn->privateData;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virDomainObj *vm;
virDomainDef *def;
virDomainDef *persistentDef;
g_autoptr(virBitmap) pcpumap = NULL;
qemuDomainObjPrivate *priv;
g_autoptr(virCgroup) cgroup_iothread = NULL;
virObjectEvent *event = NULL;
char paramField[VIR_TYPED_PARAM_FIELD_LENGTH] = "";
g_autofree char *str = NULL;
virTypedParameterPtr eventParams = NULL;
int eventNparams = 0;
int eventMaxparams = 0;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
cfg = virQEMUDriverGetConfig(driver);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
priv = vm->privateData;
if (virDomainPinIOThreadEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
if (!(pcpumap = virBitmapNewData(cpumap, maplen)))
goto endjob;
if (virBitmapIsAllClear(pcpumap)) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("Empty iothread cpumap list for pinning"));
goto endjob;
}
if (def) {
virDomainIOThreadIDDef *iothrid;
if (!(iothrid = virDomainIOThreadIDFind(def, iothread_id))) {
virReportError(VIR_ERR_INVALID_ARG,
_("iothread %d not found"), iothread_id);
goto endjob;
}
/* Configure the corresponding cpuset cgroup before set affinity. */
if (virCgroupHasController(priv->cgroup,
VIR_CGROUP_CONTROLLER_CPUSET)) {
if (virCgroupNewThread(priv->cgroup, VIR_CGROUP_THREAD_IOTHREAD,
iothread_id, false, &cgroup_iothread) < 0)
goto endjob;
if (virDomainCgroupSetupCpusetCpus(cgroup_iothread, pcpumap) < 0) {
virReportError(VIR_ERR_OPERATION_INVALID,
_("failed to set cpuset.cpus in cgroup"
" for iothread %d"), iothread_id);
goto endjob;
}
}
if (virProcessSetAffinity(iothrid->thread_id, pcpumap, false) < 0)
goto endjob;
virBitmapFree(iothrid->cpumask);
iothrid->cpumask = virBitmapNewCopy(pcpumap);
iothrid->autofill = false;
qemuDomainSaveStatus(vm);
if (g_snprintf(paramField, VIR_TYPED_PARAM_FIELD_LENGTH,
VIR_DOMAIN_TUNABLE_CPU_IOTHREADSPIN, iothread_id) < 0) {
goto endjob;
}
str = virBitmapFormat(pcpumap);
if (virTypedParamsAddString(&eventParams, &eventNparams,
&eventMaxparams, paramField, str) < 0)
goto endjob;
event = virDomainEventTunableNewFromDom(dom, eventParams, eventNparams);
}
if (persistentDef) {
virDomainIOThreadIDDef *iothrid;
if (!(iothrid = virDomainIOThreadIDFind(persistentDef, iothread_id))) {
virReportError(VIR_ERR_INVALID_ARG,
_("iothreadid %d not found"), iothread_id);
goto endjob;
}
virBitmapFree(iothrid->cpumask);
iothrid->cpumask = virBitmapNewCopy(pcpumap);
iothrid->autofill = false;
ret = virDomainDefSave(persistentDef, driver->xmlopt, cfg->configDir);
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virObjectEventStateQueue(driver->domainEventState, event);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainHotplugAddIOThread(virDomainObj *vm,
unsigned int iothread_id)
{
qemuDomainObjPrivate *priv = vm->privateData;
g_autofree char *alias = NULL;
size_t idx;
int ret = -1;
unsigned int orig_niothreads = vm->def->niothreadids;
unsigned int exp_niothreads = vm->def->niothreadids;
int new_niothreads = 0;
qemuMonitorIOThreadInfo **new_iothreads = NULL;
virDomainIOThreadIDDef *iothrid;
g_autoptr(virJSONValue) props = NULL;
bool threadAdded = false;
bool objectAdded = false;
alias = g_strdup_printf("iothread%u", iothread_id);
if (qemuMonitorCreateObjectProps(&props, "iothread", alias, NULL) < 0)
goto cleanup;
qemuDomainObjEnterMonitor(vm);
if (qemuMonitorAddObject(priv->mon, &props, NULL) < 0)
goto exit_monitor;
objectAdded = true;
exp_niothreads++;
/* After hotplugging the IOThreads we need to re-detect the
* IOThreads thread_id's, adjust the cgroups, thread affinity,
* and add the thread_id to the vm->def->iothreadids list.
*/
if (qemuMonitorGetIOThreads(priv->mon, &new_iothreads, &new_niothreads) < 0)
goto exit_monitor;
qemuDomainObjExitMonitor(vm);
if (new_niothreads != exp_niothreads) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("got wrong number of IOThread ids from QEMU monitor. "
"got %d, wanted %d"),
new_niothreads, exp_niothreads);
goto cleanup;
}
/*
* If we've successfully added an IOThread, find out where we added it
* in the QEMU IOThread list, so we can add it to our iothreadids list
*/
for (idx = 0; idx < new_niothreads; idx++) {
if (new_iothreads[idx]->iothread_id == iothread_id)
break;
}
if (idx == new_niothreads) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot find new IOThread '%u' in QEMU monitor."),
iothread_id);
goto cleanup;
}
if (!(iothrid = virDomainIOThreadIDAdd(vm->def, iothread_id)))
goto cleanup;
threadAdded = true;
iothrid->thread_id = new_iothreads[idx]->thread_id;
if (qemuProcessSetupIOThread(vm, iothrid) < 0)
goto cleanup;
ret = 0;
cleanup:
if (ret < 0) {
if (threadAdded)
virDomainIOThreadIDDel(vm->def, iothread_id);
if (objectAdded) {
qemuDomainObjEnterMonitor(vm);
if (qemuMonitorDelObject(priv->mon, alias, true) < 0)
VIR_WARN("deletion of iothread object %d of domain %s failed when cleanup",
iothread_id, vm->def->name);
qemuDomainObjExitMonitor(vm);
}
}
if (new_iothreads) {
for (idx = 0; idx < new_niothreads; idx++)
VIR_FREE(new_iothreads[idx]);
VIR_FREE(new_iothreads);
}
virDomainAuditIOThread(vm, orig_niothreads, new_niothreads,
"update", ret == 0);
return ret;
exit_monitor:
qemuDomainObjExitMonitor(vm);
goto cleanup;
}
static int
qemuDomainHotplugModIOThread(virDomainObj *vm,
qemuMonitorIOThreadInfo iothread)
{
qemuDomainObjPrivate *priv = vm->privateData;
int rc;
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_IOTHREAD_POLLING)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("IOThreads polling is not supported for this QEMU"));
return -1;
}
qemuDomainObjEnterMonitor(vm);
rc = qemuMonitorSetIOThread(priv->mon, &iothread);
qemuDomainObjExitMonitor(vm);
if (rc < 0)
return -1;
return 0;
}
static int
qemuDomainHotplugModIOThreadIDDef(virDomainIOThreadIDDef *def,
qemuMonitorIOThreadInfo mondef)
{
/* These have no representation in domain XML */
if (mondef.set_poll_grow ||
mondef.set_poll_max_ns ||
mondef.set_poll_shrink)
return -1;
if (mondef.set_thread_pool_min)
def->thread_pool_min = mondef.thread_pool_min;
if (mondef.set_thread_pool_max)
def->thread_pool_max = mondef.thread_pool_max;
return 0;
}
static int
qemuDomainHotplugDelIOThread(virDomainObj *vm,
unsigned int iothread_id)
{
qemuDomainObjPrivate *priv = vm->privateData;
size_t idx;
g_autofree char *alias = NULL;
int rc = -1;
int ret = -1;
unsigned int orig_niothreads = vm->def->niothreadids;
unsigned int exp_niothreads = vm->def->niothreadids;
int new_niothreads = 0;
qemuMonitorIOThreadInfo **new_iothreads = NULL;
alias = g_strdup_printf("iothread%u", iothread_id);
qemuDomainObjEnterMonitor(vm);
rc = qemuMonitorDelObject(priv->mon, alias, true);
exp_niothreads--;
if (rc < 0)
goto exit_monitor;
if (qemuMonitorGetIOThreads(priv->mon, &new_iothreads, &new_niothreads) < 0)
goto exit_monitor;
qemuDomainObjExitMonitor(vm);
if (new_niothreads != exp_niothreads) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("got wrong number of IOThread ids from QEMU monitor. "
"got %d, wanted %d"),
new_niothreads, exp_niothreads);
goto cleanup;
}
virDomainIOThreadIDDel(vm->def, iothread_id);
if (virCgroupDelThread(priv->cgroup, VIR_CGROUP_THREAD_IOTHREAD,
iothread_id) < 0)
goto cleanup;
ret = 0;
cleanup:
if (new_iothreads) {
for (idx = 0; idx < new_niothreads; idx++)
VIR_FREE(new_iothreads[idx]);
VIR_FREE(new_iothreads);
}
virDomainAuditIOThread(vm, orig_niothreads, new_niothreads,
"update", rc == 0);
return ret;
exit_monitor:
qemuDomainObjExitMonitor(vm);
goto cleanup;
}
/**
* @params: Pointer to params list
* @nparams: Number of params to be parsed
* @iothread: Buffer to store the values
*
* The following is a description of each value parsed:
*
* - "poll-max-ns" for each IOThread is the maximum time in nanoseconds
* to allow each polling interval to occur. A polling interval is a
* period of time allowed for a thread to process data before it returns
* the CPU quantum back to the host. A value set too small will not allow
* the IOThread to run long enough on a CPU to process data. A value set
* too high will consume too much CPU time per IOThread failing to allow
* other threads running on the CPU to get time. A value of 0 (zero) will
* disable the polling.
*
* - "poll-grow" - factor to grow the current polling time when deemed
* necessary. If a 0 (zero) value is provided, QEMU currently doubles
* its polling interval unless the current value is greater than the
* poll-max-ns.
*
* - "poll-shrink" - divisor to reduced the current polling time when deemed
* necessary. If a 0 (zero) value is provided, QEMU resets the polling
* interval to 0 (zero) allowing the poll-grow to manipulate the time.
*
* QEMU keeps track of the polling time elapsed and may grow or shrink the
* its polling interval based upon its heuristic algorithm. It is possible
* that calculations determine that it has found a "sweet spot" and no
* adjustments are made. The polling time value is not available.
*
* Returns 0 on success, -1 on failure with error set.
*/
static int
qemuDomainIOThreadParseParams(virTypedParameterPtr params,
int nparams,
qemuMonitorIOThreadInfo *iothread)
{
int rc;
if (virTypedParamsValidate(params, nparams,
VIR_DOMAIN_IOTHREAD_POLL_MAX_NS,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_IOTHREAD_POLL_GROW,
VIR_TYPED_PARAM_UINT,
VIR_DOMAIN_IOTHREAD_POLL_SHRINK,
VIR_TYPED_PARAM_UINT,
VIR_DOMAIN_IOTHREAD_THREAD_POOL_MIN,
VIR_TYPED_PARAM_INT,
VIR_DOMAIN_IOTHREAD_THREAD_POOL_MAX,
VIR_TYPED_PARAM_INT,
NULL) < 0)
return -1;
if ((rc = virTypedParamsGetULLong(params, nparams,
VIR_DOMAIN_IOTHREAD_POLL_MAX_NS,
&iothread->poll_max_ns)) < 0)
return -1;
if (rc == 1)
iothread->set_poll_max_ns = true;
if ((rc = virTypedParamsGetUInt(params, nparams,
VIR_DOMAIN_IOTHREAD_POLL_GROW,
&iothread->poll_grow)) < 0)
return -1;
if (rc == 1)
iothread->set_poll_grow = true;
if ((rc = virTypedParamsGetUInt(params, nparams,
VIR_DOMAIN_IOTHREAD_POLL_SHRINK,
&iothread->poll_shrink)) < 0)
return -1;
if (rc == 1)
iothread->set_poll_shrink = true;
if ((rc = virTypedParamsGetInt(params, nparams,
VIR_DOMAIN_IOTHREAD_THREAD_POOL_MIN,
&iothread->thread_pool_min)) < 0)
return -1;
if (rc == 1)
iothread->set_thread_pool_min = true;
if ((rc = virTypedParamsGetInt(params, nparams,
VIR_DOMAIN_IOTHREAD_THREAD_POOL_MAX,
&iothread->thread_pool_max)) < 0)
return -1;
if (rc == 1)
iothread->set_thread_pool_max = true;
if (iothread->set_poll_max_ns && iothread->poll_max_ns > INT_MAX) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("poll-max-ns (%llu) must be less than or equal to %d"),
iothread->poll_max_ns, INT_MAX);
return -1;
}
if (iothread->set_poll_grow && iothread->poll_grow > INT_MAX) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("poll-grow (%u) must be less than or equal to %d"),
iothread->poll_grow, INT_MAX);
return -1;
}
if (iothread->set_poll_shrink && iothread->poll_shrink > INT_MAX) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("poll-shrink (%u) must be less than or equal to %d"),
iothread->poll_shrink, INT_MAX);
return -1;
}
if (iothread->set_thread_pool_min && iothread->thread_pool_min < -1) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("thread_pool_min (%d) must be equal to or greater than -1"),
iothread->thread_pool_min);
return -1;
}
if (iothread->set_thread_pool_max &&
(iothread->thread_pool_max < -1 || iothread->thread_pool_max == 0)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("thread_pool_max (%d) must be a positive number or -1"),
iothread->thread_pool_max);
return -1;
}
return 0;
}
/**
* qemuDomainIOThreadValidate:
* iothreaddef: IOThread definition in domain XML
* iothread: new values to set
* live: whether this is update of active domain
*
* Validate that changes to be made to an IOThread (as expressed by @iothread)
* are consistent with the current state of the IOThread (@iothreaddef).
* For instance, that thread_pool_min won't end up greater than thread_pool_max.
*
* Returns: 0 on success,
* -1 on error, with error message reported.
*/
static int
qemuDomainIOThreadValidate(virDomainIOThreadIDDef *iothreaddef,
qemuMonitorIOThreadInfo iothread,
bool live)
{
int thread_pool_min = iothreaddef->thread_pool_min;
int thread_pool_max = iothreaddef->thread_pool_max;
/* For live change we don't have a way to let QEMU return to its
* defaults. Therefore, deny setting -1. */
if (iothread.set_thread_pool_min) {
if (live && iothread.thread_pool_min < 0) {
virReportError(VIR_ERR_OPERATION_INVALID,
_("thread_pool_min (%d) must be equal to or greater than 0 for live change"),
iothread.thread_pool_min);
return -1;
}
thread_pool_min = iothread.thread_pool_min;
}
if (iothread.set_thread_pool_max) {
if (live && iothread.thread_pool_max < 0) {
virReportError(VIR_ERR_OPERATION_INVALID,
_("thread_pool_max (%d) must be equal to or greater than 0 for live change"),
iothread.thread_pool_max);
return -1;
}
thread_pool_max = iothread.thread_pool_max;
}
if (thread_pool_min > thread_pool_max) {
virReportError(VIR_ERR_OPERATION_INVALID,
_("thread_pool_min (%d) can't be greater than thread_pool_max (%d)"),
thread_pool_min, thread_pool_max);
return -1;
}
return 0;
}
typedef enum {
VIR_DOMAIN_IOTHREAD_ACTION_ADD,
VIR_DOMAIN_IOTHREAD_ACTION_DEL,
VIR_DOMAIN_IOTHREAD_ACTION_MOD,
} virDomainIOThreadAction;
static int
qemuDomainChgIOThread(virQEMUDriver *driver,
virDomainObj *vm,
qemuMonitorIOThreadInfo iothread,
virDomainIOThreadAction action,
unsigned int flags)
{
g_autoptr(virQEMUDriverConfig) cfg = NULL;
qemuDomainObjPrivate *priv;
g_autoptr(virDomainDef) defcopy = NULL;
virDomainDef *def;
virDomainDef *persistentDef;
virDomainIOThreadIDDef *iothreaddef = NULL;
int ret = -1;
cfg = virQEMUDriverGetConfig(driver);
priv = vm->privateData;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
return -1;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
if (persistentDef) {
/* Make a copy of persistent definition and do all the changes there.
* Swap the definitions only after changes to live definition
* succeeded. */
if (!(defcopy = virDomainObjCopyPersistentDef(vm, driver->xmlopt,
priv->qemuCaps)))
return -1;
switch (action) {
case VIR_DOMAIN_IOTHREAD_ACTION_ADD:
if (virDomainDriverAddIOThreadCheck(defcopy, iothread.iothread_id) < 0)
goto endjob;
if (!virDomainIOThreadIDAdd(defcopy, iothread.iothread_id))
goto endjob;
break;
case VIR_DOMAIN_IOTHREAD_ACTION_DEL:
if (virDomainDriverDelIOThreadCheck(defcopy, iothread.iothread_id) < 0)
goto endjob;
virDomainIOThreadIDDel(defcopy, iothread.iothread_id);
break;
case VIR_DOMAIN_IOTHREAD_ACTION_MOD:
iothreaddef = virDomainIOThreadIDFind(defcopy, iothread.iothread_id);
if (!iothreaddef) {
virReportError(VIR_ERR_INVALID_ARG,
_("cannot find IOThread '%u' in iothreadids"),
iothread.iothread_id);
goto endjob;
}
if (qemuDomainIOThreadValidate(iothreaddef, iothread, false) < 0)
goto endjob;
if (qemuDomainHotplugModIOThreadIDDef(iothreaddef, iothread) < 0) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("configuring persistent polling values is not supported"));
goto endjob;
}
break;
}
}
if (def) {
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_OBJECT_IOTHREAD)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("IOThreads not supported with this binary"));
goto endjob;
}
switch (action) {
case VIR_DOMAIN_IOTHREAD_ACTION_ADD:
if (virDomainDriverAddIOThreadCheck(def, iothread.iothread_id) < 0)
goto endjob;
if (qemuDomainHotplugAddIOThread(vm, iothread.iothread_id) < 0)
goto endjob;
break;
case VIR_DOMAIN_IOTHREAD_ACTION_DEL:
if (virDomainDriverDelIOThreadCheck(def, iothread.iothread_id) < 0)
goto endjob;
if (qemuDomainHotplugDelIOThread(vm, iothread.iothread_id) < 0)
goto endjob;
break;
case VIR_DOMAIN_IOTHREAD_ACTION_MOD:
iothreaddef = virDomainIOThreadIDFind(def, iothread.iothread_id);
if (!iothreaddef) {
virReportError(VIR_ERR_INVALID_ARG,
_("cannot find IOThread '%u' in iothreadids"),
iothread.iothread_id);
goto endjob;
}
if (qemuDomainIOThreadValidate(iothreaddef, iothread, true) < 0)
goto endjob;
if (qemuDomainHotplugModIOThread(vm, iothread) < 0)
goto endjob;
qemuDomainHotplugModIOThreadIDDef(iothreaddef, iothread);
break;
}
qemuDomainSaveStatus(vm);
}
/* Finally, if no error until here, we can save config. */
if (defcopy) {
if (virDomainDefSave(defcopy, driver->xmlopt, cfg->configDir) < 0)
goto endjob;
virDomainObjAssignDef(vm, &defcopy, false, NULL);
}
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
return ret;
}
static int
qemuDomainAddIOThread(virDomainPtr dom,
unsigned int iothread_id,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
qemuMonitorIOThreadInfo iothread = {0};
int ret = -1;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (iothread_id == 0) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("invalid value of 0 for iothread_id"));
return -1;
}
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainAddIOThreadEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
iothread.iothread_id = iothread_id;
ret = qemuDomainChgIOThread(driver, vm, iothread,
VIR_DOMAIN_IOTHREAD_ACTION_ADD, flags);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainDelIOThread(virDomainPtr dom,
unsigned int iothread_id,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
qemuMonitorIOThreadInfo iothread = {0};
int ret = -1;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (iothread_id == 0) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("invalid value of 0 for iothread_id"));
return -1;
}
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainDelIOThreadEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
iothread.iothread_id = iothread_id;
ret = qemuDomainChgIOThread(driver, vm, iothread,
VIR_DOMAIN_IOTHREAD_ACTION_DEL, flags);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
/**
* @dom: Domain to set IOThread params
* @iothread_id: IOThread 'id' that will be modified
* @params: List of parameters to change
* @nparams: Number of parameters in the list
* @flags: Flags for the set (only supports live alteration)
*
* Alter the specified @iothread_id with the values provided.
*
* Returns 0 on success, -1 on failure
*/
static int
qemuDomainSetIOThreadParams(virDomainPtr dom,
unsigned int iothread_id,
virTypedParameterPtr params,
int nparams,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
qemuMonitorIOThreadInfo iothread = {0};
int ret = -1;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (iothread_id == 0) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("invalid value of 0 for iothread_id"));
goto cleanup;
}
iothread.iothread_id = iothread_id;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainSetIOThreadParamsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (qemuDomainIOThreadParseParams(params, nparams, &iothread) < 0)
goto cleanup;
ret = qemuDomainChgIOThread(driver, vm, iothread,
VIR_DOMAIN_IOTHREAD_ACTION_MOD, flags);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int qemuDomainGetSecurityLabel(virDomainPtr dom, virSecurityLabelPtr seclabel)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
int ret = -1;
memset(seclabel, 0, sizeof(*seclabel));
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainGetSecurityLabelEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
/*
* Theoretically, the pid can be replaced during this operation and
* return the label of a different process. If atomicity is needed,
* further validation will be required.
*
* Comment from Dan Berrange:
*
* Well the PID as stored in the virDomainObj *can't be changed
* because you've got a locked object. The OS level PID could have
* exited, though and in extreme circumstances have cycled through all
* PIDs back to ours. We could sanity check that our PID still exists
* after reading the label, by checking that our FD connecting to the
* QEMU monitor hasn't seen SIGHUP/ERR on poll().
*/
if (virDomainObjIsActive(vm)) {
if (qemuSecurityGetProcessLabel(driver->securityManager,
vm->def, vm->pid, seclabel) < 0)
goto cleanup;
}
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int qemuDomainGetSecurityLabelList(virDomainPtr dom,
virSecurityLabelPtr* seclabels)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
size_t i;
int ret = -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainGetSecurityLabelListEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
/*
* Check the comment in qemuDomainGetSecurityLabel function.
*/
if (!virDomainObjIsActive(vm)) {
/* No seclabels */
*seclabels = NULL;
ret = 0;
} else {
int len = 0;
virSecurityManager ** mgrs = qemuSecurityGetNested(driver->securityManager);
if (!mgrs)
goto cleanup;
/* Allocate seclabels array */
for (i = 0; mgrs[i]; i++)
len++;
(*seclabels) = g_new0(virSecurityLabel, len);
memset(*seclabels, 0, sizeof(**seclabels) * len);
/* Fill the array */
for (i = 0; i < len; i++) {
if (qemuSecurityGetProcessLabel(mgrs[i], vm->def, vm->pid,
&(*seclabels)[i]) < 0) {
VIR_FREE(mgrs);
VIR_FREE(*seclabels);
goto cleanup;
}
}
ret = len;
VIR_FREE(mgrs);
}
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int qemuNodeGetSecurityModel(virConnectPtr conn,
virSecurityModelPtr secmodel)
{
virQEMUDriver *driver = conn->privateData;
g_autoptr(virCaps) caps = NULL;
memset(secmodel, 0, sizeof(*secmodel));
if (virNodeGetSecurityModelEnsureACL(conn) < 0)
return -1;
/* We treat no driver as success, but simply return no data in *secmodel */
if (!(caps = virQEMUDriverGetCapabilities(driver, false)) ||
caps->host.nsecModels == 0 ||
caps->host.secModels[0].model == NULL)
return 0;
if (virStrcpy(secmodel->model, caps->host.secModels[0].model,
VIR_SECURITY_MODEL_BUFLEN) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("security model string exceeds max %d bytes"),
VIR_SECURITY_MODEL_BUFLEN - 1);
return -1;
}
if (virStrcpy(secmodel->doi, caps->host.secModels[0].doi,
VIR_SECURITY_DOI_BUFLEN) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("security DOI string exceeds max %d bytes"),
VIR_SECURITY_DOI_BUFLEN - 1);
return -1;
}
return 0;
}
static int
qemuDomainRestoreInternal(virConnectPtr conn,
const char *path,
const char *dxml,
unsigned int flags,
int (*ensureACL)(virConnectPtr, virDomainDef *))
{
virQEMUDriver *driver = conn->privateData;
qemuDomainObjPrivate *priv = NULL;
g_autoptr(virDomainDef) def = NULL;
virDomainObj *vm = NULL;
g_autofree char *xmlout = NULL;
const char *newxml = dxml;
int fd = -1;
int ret = -1;
virQEMUSaveData *data = NULL;
virFileWrapperFd *wrapperFd = NULL;
bool hook_taint = false;
bool reset_nvram = false;
virCheckFlags(VIR_DOMAIN_SAVE_BYPASS_CACHE |
VIR_DOMAIN_SAVE_RUNNING |
VIR_DOMAIN_SAVE_PAUSED |
VIR_DOMAIN_SAVE_RESET_NVRAM, -1);
if (flags & VIR_DOMAIN_SAVE_RESET_NVRAM)
reset_nvram = true;
fd = qemuSaveImageOpen(driver, NULL, path, &def, &data,
(flags & VIR_DOMAIN_SAVE_BYPASS_CACHE) != 0,
&wrapperFd, false, false);
if (fd < 0)
goto cleanup;
if (ensureACL(conn, def) < 0)
goto cleanup;
if (virHookPresent(VIR_HOOK_DRIVER_QEMU)) {
int hookret;
if ((hookret = virHookCall(VIR_HOOK_DRIVER_QEMU, def->name,
VIR_HOOK_QEMU_OP_RESTORE,
VIR_HOOK_SUBOP_BEGIN,
NULL,
dxml ? dxml : data->xml,
&xmlout)) < 0)
goto cleanup;
if (hookret == 0 && !virStringIsEmpty(xmlout)) {
VIR_DEBUG("Using hook-filtered domain XML: %s", xmlout);
hook_taint = true;
newxml = xmlout;
}
}
if (newxml) {
virDomainDef *tmp;
if (!(tmp = qemuSaveImageUpdateDef(driver, def, newxml)))
goto cleanup;
virDomainDefFree(def);
def = tmp;
}
if (!(vm = virDomainObjListAdd(driver->domains, &def,
driver->xmlopt,
VIR_DOMAIN_OBJ_LIST_ADD_LIVE |
VIR_DOMAIN_OBJ_LIST_ADD_CHECK_LIVE,
NULL)))
goto cleanup;
if (flags & VIR_DOMAIN_SAVE_RUNNING)
data->header.was_running = 1;
else if (flags & VIR_DOMAIN_SAVE_PAUSED)
data->header.was_running = 0;
if (hook_taint) {
priv = vm->privateData;
priv->hookRun = true;
}
if (qemuProcessBeginJob(vm, VIR_DOMAIN_JOB_OPERATION_RESTORE, flags) < 0)
goto cleanup;
ret = qemuSaveImageStartVM(conn, driver, vm, &fd, data, path,
false, reset_nvram, VIR_ASYNC_JOB_START);
qemuProcessEndJob(vm);
cleanup:
VIR_FORCE_CLOSE(fd);
if (virFileWrapperFdClose(wrapperFd) < 0)
ret = -1;
virFileWrapperFdFree(wrapperFd);
virQEMUSaveDataFree(data);
if (vm && ret < 0)
qemuDomainRemoveInactive(driver, vm);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainRestoreFlags(virConnectPtr conn,
const char *path,
const char *dxml,
unsigned int flags)
{
return qemuDomainRestoreInternal(conn, path, dxml, flags,
virDomainRestoreFlagsEnsureACL);
}
static int
qemuDomainRestore(virConnectPtr conn,
const char *path)
{
return qemuDomainRestoreInternal(conn, path, NULL, 0,
virDomainRestoreEnsureACL);
}
static int
qemuDomainRestoreParams(virConnectPtr conn,
virTypedParameterPtr params, int nparams,
unsigned int flags)
{
const char *path = NULL;
const char *dxml = NULL;
int ret = -1;
if (virTypedParamsValidate(params, nparams,
VIR_DOMAIN_SAVE_PARAM_FILE, VIR_TYPED_PARAM_STRING,
VIR_DOMAIN_SAVE_PARAM_DXML, VIR_TYPED_PARAM_STRING,
NULL) < 0)
return -1;
if (virTypedParamsGetString(params, nparams,
VIR_DOMAIN_SAVE_PARAM_FILE, &path) < 0)
return -1;
if (virTypedParamsGetString(params, nparams,
VIR_DOMAIN_SAVE_PARAM_DXML, &dxml) < 0)
return -1;
if (!path) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("missing path to restore from"));
return -1;
}
ret = qemuDomainRestoreInternal(conn, path, dxml, flags,
virDomainRestoreParamsEnsureACL);
return ret;
}
static char *
qemuDomainSaveImageGetXMLDesc(virConnectPtr conn, const char *path,
unsigned int flags)
{
virQEMUDriver *driver = conn->privateData;
char *ret = NULL;
g_autoptr(virDomainDef) def = NULL;
int fd = -1;
virQEMUSaveData *data = NULL;
virCheckFlags(VIR_DOMAIN_SAVE_IMAGE_XML_SECURE, NULL);
fd = qemuSaveImageOpen(driver, NULL, path, &def, &data,
false, NULL, false, false);
if (fd < 0)
goto cleanup;
if (virDomainSaveImageGetXMLDescEnsureACL(conn, def) < 0)
goto cleanup;
ret = qemuDomainDefFormatXML(driver, NULL, def, flags);
cleanup:
virQEMUSaveDataFree(data);
VIR_FORCE_CLOSE(fd);
return ret;
}
static int
qemuDomainSaveImageDefineXML(virConnectPtr conn, const char *path,
const char *dxml, unsigned int flags)
{
virQEMUDriver *driver = conn->privateData;
int ret = -1;
g_autoptr(virDomainDef) def = NULL;
g_autoptr(virDomainDef) newdef = NULL;
int fd = -1;
virQEMUSaveData *data = NULL;
int state = -1;
virCheckFlags(VIR_DOMAIN_SAVE_RUNNING |
VIR_DOMAIN_SAVE_PAUSED, -1);
if (flags & VIR_DOMAIN_SAVE_RUNNING)
state = 1;
else if (flags & VIR_DOMAIN_SAVE_PAUSED)
state = 0;
fd = qemuSaveImageOpen(driver, NULL, path, &def, &data,
false, NULL, true, false);
if (fd < 0)
goto cleanup;
if (virDomainSaveImageDefineXMLEnsureACL(conn, def) < 0)
goto cleanup;
if (STREQ(data->xml, dxml) &&
(state < 0 || state == data->header.was_running)) {
/* no change to the XML */
ret = 0;
goto cleanup;
}
if (state >= 0)
data->header.was_running = state;
if (!(newdef = qemuSaveImageUpdateDef(driver, def, dxml)))
goto cleanup;
VIR_FREE(data->xml);
if (!(data->xml = qemuDomainDefFormatXML(driver, NULL, newdef,
VIR_DOMAIN_XML_INACTIVE |
VIR_DOMAIN_XML_SECURE |
VIR_DOMAIN_XML_MIGRATABLE)))
goto cleanup;
if (lseek(fd, 0, SEEK_SET) != 0) {
virReportSystemError(errno, _("cannot seek in '%s'"), path);
goto cleanup;
}
if (virQEMUSaveDataWrite(data, fd, path) < 0)
goto cleanup;
if (VIR_CLOSE(fd) < 0) {
virReportSystemError(errno, _("failed to write header data to '%s'"), path);
goto cleanup;
}
ret = 0;
cleanup:
VIR_FORCE_CLOSE(fd);
virQEMUSaveDataFree(data);
return ret;
}
static char *
qemuDomainManagedSaveGetXMLDesc(virDomainPtr dom, unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
g_autofree char *path = NULL;
char *ret = NULL;
g_autoptr(virDomainDef) def = NULL;
int fd = -1;
virQEMUSaveData *data = NULL;
qemuDomainObjPrivate *priv;
virCheckFlags(VIR_DOMAIN_SAVE_IMAGE_XML_SECURE, NULL);
if (!(vm = qemuDomainObjFromDomain(dom)))
return ret;
priv = vm->privateData;
if (virDomainManagedSaveGetXMLDescEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
path = qemuDomainManagedSavePath(driver, vm);
if (!virFileExists(path)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("domain does not have managed save image"));
goto cleanup;
}
if ((fd = qemuSaveImageOpen(driver, priv->qemuCaps, path, &def, &data,
false, NULL, false, false)) < 0)
goto cleanup;
ret = qemuDomainDefFormatXML(driver, priv->qemuCaps, def, flags);
cleanup:
virQEMUSaveDataFree(data);
VIR_FORCE_CLOSE(fd);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainManagedSaveDefineXML(virDomainPtr dom, const char *dxml,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virConnectPtr conn = dom->conn;
virDomainObj *vm;
g_autofree char *path = NULL;
int ret = -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainManagedSaveDefineXMLEnsureACL(conn, vm->def) < 0)
goto cleanup;
path = qemuDomainManagedSavePath(driver, vm);
if (!virFileExists(path)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("domain does not have managed save image"));
goto cleanup;
}
ret = qemuDomainSaveImageDefineXML(conn, path, dxml, flags);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
/* Return 0 on success, 1 if incomplete saved image was silently unlinked,
* and -1 on failure with error raised. */
static int
qemuDomainObjRestore(virConnectPtr conn,
virQEMUDriver *driver,
virDomainObj *vm,
const char *path,
bool start_paused,
bool bypass_cache,
bool reset_nvram,
virDomainAsyncJob asyncJob)
{
g_autoptr(virDomainDef) def = NULL;
qemuDomainObjPrivate *priv = vm->privateData;
int fd = -1;
int ret = -1;
g_autofree char *xmlout = NULL;
virQEMUSaveData *data = NULL;
virFileWrapperFd *wrapperFd = NULL;
fd = qemuSaveImageOpen(driver, NULL, path, &def, &data,
bypass_cache, &wrapperFd, false, true);
if (fd < 0) {
if (fd == -3)
ret = 1;
goto cleanup;
}
if (virHookPresent(VIR_HOOK_DRIVER_QEMU)) {
int hookret;
if ((hookret = virHookCall(VIR_HOOK_DRIVER_QEMU, def->name,
VIR_HOOK_QEMU_OP_RESTORE,
VIR_HOOK_SUBOP_BEGIN,
NULL, data->xml, &xmlout)) < 0)
goto cleanup;
if (hookret == 0 && !virStringIsEmpty(xmlout)) {
virDomainDef *tmp;
VIR_DEBUG("Using hook-filtered domain XML: %s", xmlout);
if (!(tmp = qemuSaveImageUpdateDef(driver, def, xmlout)))
goto cleanup;
virDomainDefFree(def);
def = tmp;
priv->hookRun = true;
}
}
if (STRNEQ(vm->def->name, def->name) ||
memcmp(vm->def->uuid, def->uuid, VIR_UUID_BUFLEN)) {
char vm_uuidstr[VIR_UUID_STRING_BUFLEN];
char def_uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(vm->def->uuid, vm_uuidstr);
virUUIDFormat(def->uuid, def_uuidstr);
virReportError(VIR_ERR_OPERATION_FAILED,
_("cannot restore domain '%s' uuid %s from a file"
" which belongs to domain '%s' uuid %s"),
vm->def->name, vm_uuidstr,
def->name, def_uuidstr);
goto cleanup;
}
virDomainObjAssignDef(vm, &def, true, NULL);
ret = qemuSaveImageStartVM(conn, driver, vm, &fd, data, path,
start_paused, reset_nvram, asyncJob);
cleanup:
virQEMUSaveDataFree(data);
VIR_FORCE_CLOSE(fd);
if (virFileWrapperFdClose(wrapperFd) < 0)
ret = -1;
virFileWrapperFdFree(wrapperFd);
return ret;
}
static char
*qemuDomainGetXMLDesc(virDomainPtr dom,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
char *ret = NULL;
virCheckFlags(VIR_DOMAIN_XML_COMMON_FLAGS | VIR_DOMAIN_XML_UPDATE_CPU,
NULL);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainGetXMLDescEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
qemuDomainUpdateCurrentMemorySize(vm);
if ((flags & VIR_DOMAIN_XML_MIGRATABLE))
flags |= QEMU_DOMAIN_FORMAT_LIVE_FLAGS;
/* The CPU is already updated in the domain's live definition, we need to
* ignore the VIR_DOMAIN_XML_UPDATE_CPU flag.
*/
if (virDomainObjIsActive(vm) &&
!(flags & VIR_DOMAIN_XML_INACTIVE))
flags &= ~VIR_DOMAIN_XML_UPDATE_CPU;
ret = qemuDomainFormatXML(driver, vm, flags);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuConnectDomainXMLToNativePrepareHostHostdev(virDomainHostdevDef *hostdev)
{
if (virHostdevIsSCSIDevice(hostdev)) {
virDomainHostdevSubsysSCSI *scsisrc = &hostdev->source.subsys.u.scsi;
switch ((virDomainHostdevSCSIProtocolType) scsisrc->protocol) {
case VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_NONE: {
virDomainHostdevSubsysSCSIHost *scsihostsrc = &scsisrc->u.host;
virStorageSource *src = scsisrc->u.host.src;
g_autofree char *devstr = NULL;
if (!(devstr = virSCSIDeviceGetSgName(NULL,
scsihostsrc->adapter,
scsihostsrc->bus,
scsihostsrc->target,
scsihostsrc->unit)))
return -1;
src->path = g_strdup_printf("/dev/%s", devstr);
break;
}
case VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI:
break;
case VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_LAST:
default:
virReportEnumRangeError(virDomainHostdevSCSIProtocolType, scsisrc->protocol);
return -1;
}
}
return 0;
}
static int
qemuConnectDomainXMLToNativePrepareHost(virDomainObj *vm)
{
size_t i;
for (i = 0; i < vm->def->nhostdevs; i++) {
virDomainHostdevDef *hostdev = vm->def->hostdevs[i];
if (qemuConnectDomainXMLToNativePrepareHostHostdev(hostdev) < 0)
return -1;
}
return 0;
}
static char *qemuConnectDomainXMLToNative(virConnectPtr conn,
const char *format,
const char *xmlData,
unsigned int flags)
{
virQEMUDriver *driver = conn->privateData;
g_autoptr(virDomainObj) vm = NULL;
g_autoptr(virCommand) cmd = NULL;
size_t i;
virCheckFlags(0, NULL);
if (virConnectDomainXMLToNativeEnsureACL(conn) < 0)
return NULL;
if (STRNEQ(format, QEMU_CONFIG_FORMAT_ARGV)) {
virReportError(VIR_ERR_INVALID_ARG,
_("unsupported config type %s"), format);
return NULL;
}
if (!(vm = virDomainObjNew(driver->xmlopt)))
return NULL;
if (!(vm->def = virDomainDefParseString(xmlData, driver->xmlopt, NULL,
VIR_DOMAIN_DEF_PARSE_INACTIVE |
VIR_DOMAIN_DEF_PARSE_ABI_UPDATE)))
return NULL;
/* Since we're just exporting args, we can't do bridge/network/direct
* setups, since libvirt will normally create TAP/macvtap devices
* directly. We convert those configs into generic 'ethernet'
* config and assume the user has suitable 'ifup-qemu' scripts
*/
for (i = 0; i < vm->def->nnets; i++) {
virDomainNetDef *net = vm->def->nets[i];
virDomainNetDef *newNet = virDomainNetDefNew(driver->xmlopt);
if (!newNet)
return NULL;
newNet->type = VIR_DOMAIN_NET_TYPE_ETHERNET;
newNet->info.bootIndex = net->info.bootIndex;
newNet->model = net->model;
newNet->modelstr = g_steal_pointer(&net->modelstr);
newNet->mac = net->mac;
newNet->script = g_steal_pointer(&net->script);
virDomainNetDefFree(net);
vm->def->nets[i] = newNet;
}
if (qemuProcessCreatePretendCmdPrepare(driver, vm, NULL,
VIR_QEMU_PROCESS_START_COLD) < 0)
return NULL;
if (qemuConnectDomainXMLToNativePrepareHost(vm) < 0)
return NULL;
if (!(cmd = qemuProcessCreatePretendCmdBuild(vm, NULL)))
return NULL;
return virCommandToString(cmd, false);
}
static int qemuConnectListDefinedDomains(virConnectPtr conn,
char **const names, int nnames) {
virQEMUDriver *driver = conn->privateData;
if (virConnectListDefinedDomainsEnsureACL(conn) < 0)
return -1;
return virDomainObjListGetInactiveNames(driver->domains, names, nnames,
virConnectListDefinedDomainsCheckACL,
conn);
}
static int qemuConnectNumOfDefinedDomains(virConnectPtr conn)
{
virQEMUDriver *driver = conn->privateData;
if (virConnectNumOfDefinedDomainsEnsureACL(conn) < 0)
return -1;
return virDomainObjListNumOfDomains(driver->domains, false,
virConnectNumOfDefinedDomainsCheckACL,
conn);
}
static int
qemuDomainObjStart(virConnectPtr conn,
virQEMUDriver *driver,
virDomainObj *vm,
unsigned int flags,
virDomainAsyncJob asyncJob)
{
int ret = -1;
g_autofree char *managed_save = NULL;
bool start_paused = (flags & VIR_DOMAIN_START_PAUSED) != 0;
bool autodestroy = (flags & VIR_DOMAIN_START_AUTODESTROY) != 0;
bool bypass_cache = (flags & VIR_DOMAIN_START_BYPASS_CACHE) != 0;
bool force_boot = (flags & VIR_DOMAIN_START_FORCE_BOOT) != 0;
bool reset_nvram = (flags & VIR_DOMAIN_START_RESET_NVRAM) != 0;
unsigned int start_flags = VIR_QEMU_PROCESS_START_COLD;
qemuDomainObjPrivate *priv = vm->privateData;
start_flags |= start_paused ? VIR_QEMU_PROCESS_START_PAUSED : 0;
start_flags |= autodestroy ? VIR_QEMU_PROCESS_START_AUTODESTROY : 0;
start_flags |= reset_nvram ? VIR_QEMU_PROCESS_START_RESET_NVRAM : 0;
/*
* If there is a managed saved state restore it instead of starting
* from scratch. The old state is removed once the restoring succeeded.
*/
managed_save = qemuDomainManagedSavePath(driver, vm);
if (virFileExists(managed_save)) {
if (force_boot) {
if (unlink(managed_save) < 0) {
virReportSystemError(errno,
_("cannot remove managed save file %s"),
managed_save);
return ret;
}
vm->hasManagedSave = false;
} else {
virDomainJobOperation op = priv->job.current->operation;
priv->job.current->operation = VIR_DOMAIN_JOB_OPERATION_RESTORE;
ret = qemuDomainObjRestore(conn, driver, vm, managed_save,
start_paused, bypass_cache,
reset_nvram, asyncJob);
if (ret == 0) {
if (unlink(managed_save) < 0)
VIR_WARN("Failed to remove the managed state %s", managed_save);
else
vm->hasManagedSave = false;
return ret;
} else if (ret < 0) {
VIR_WARN("Unable to restore from managed state %s. "
"Maybe the file is corrupted?", managed_save);
return ret;
} else {
VIR_WARN("Ignoring incomplete managed state %s", managed_save);
priv->job.current->operation = op;
vm->hasManagedSave = false;
}
}
}
ret = qemuProcessStart(conn, driver, vm, NULL, asyncJob,
NULL, -1, NULL, NULL,
VIR_NETDEV_VPORT_PROFILE_OP_CREATE, start_flags);
virDomainAuditStart(vm, "booted", ret >= 0);
if (ret >= 0) {
virObjectEvent *event =
virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_STARTED,
VIR_DOMAIN_EVENT_STARTED_BOOTED);
virObjectEventStateQueue(driver->domainEventState, event);
if (start_paused) {
event = virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_SUSPENDED,
VIR_DOMAIN_EVENT_SUSPENDED_PAUSED);
virObjectEventStateQueue(driver->domainEventState, event);
}
}
return ret;
}
static int
qemuDomainCreateWithFlags(virDomainPtr dom, unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
int ret = -1;
virCheckFlags(VIR_DOMAIN_START_PAUSED |
VIR_DOMAIN_START_AUTODESTROY |
VIR_DOMAIN_START_BYPASS_CACHE |
VIR_DOMAIN_START_FORCE_BOOT |
VIR_DOMAIN_START_RESET_NVRAM, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainCreateWithFlagsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuProcessBeginJob(vm, VIR_DOMAIN_JOB_OPERATION_START, flags) < 0)
goto cleanup;
if (virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain is already running"));
goto endjob;
}
if (qemuDomainObjStart(dom->conn, driver, vm, flags,
VIR_ASYNC_JOB_START) < 0)
goto endjob;
dom->id = vm->def->id;
ret = 0;
endjob:
qemuProcessEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainCreate(virDomainPtr dom)
{
return qemuDomainCreateWithFlags(dom, 0);
}
static virDomainPtr
qemuDomainDefineXMLFlags(virConnectPtr conn,
const char *xml,
unsigned int flags)
{
virQEMUDriver *driver = conn->privateData;
g_autoptr(virDomainDef) def = NULL;
g_autoptr(virDomainDef) oldDef = NULL;
virDomainObj *vm = NULL;
virDomainPtr dom = NULL;
virObjectEvent *event = NULL;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_INACTIVE |
VIR_DOMAIN_DEF_PARSE_ABI_UPDATE;
virCheckFlags(VIR_DOMAIN_DEFINE_VALIDATE, NULL);
if (flags & VIR_DOMAIN_DEFINE_VALIDATE)
parse_flags |= VIR_DOMAIN_DEF_PARSE_VALIDATE_SCHEMA;
if (!(def = virDomainDefParseString(xml, driver->xmlopt,
NULL, parse_flags)))
return NULL;
if (virXMLCheckIllegalChars("name", def->name, "\n") < 0)
goto cleanup;
if (virDomainDefineXMLFlagsEnsureACL(conn, def) < 0)
goto cleanup;
if (!(vm = virDomainObjListAdd(driver->domains, &def,
driver->xmlopt,
0, &oldDef)))
goto cleanup;
if (!oldDef && qemuDomainNamePathsCleanup(cfg, vm->def->name, false) < 0)
goto cleanup;
if (virDomainDefSave(vm->newDef ? vm->newDef : vm->def,
driver->xmlopt, cfg->configDir) < 0)
goto cleanup;
vm->persistent = 1;
event = virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_DEFINED,
!oldDef ?
VIR_DOMAIN_EVENT_DEFINED_ADDED :
VIR_DOMAIN_EVENT_DEFINED_UPDATED);
VIR_INFO("Creating domain '%s'", vm->def->name);
dom = virGetDomain(conn, vm->def->name, vm->def->uuid, vm->def->id);
cleanup:
if (!dom && !def) {
if (oldDef) {
/* There is backup so this VM was defined before.
* Just restore the backup. */
VIR_INFO("Restoring domain '%s' definition", vm->def->name);
if (virDomainObjIsActive(vm))
vm->newDef = oldDef;
else
vm->def = oldDef;
oldDef = NULL;
} else {
/* Brand new domain. Remove it */
VIR_INFO("Deleting domain '%s'", vm->def->name);
qemuDomainRemoveInactive(driver, vm);
}
}
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
return dom;
}
static virDomainPtr
qemuDomainDefineXML(virConnectPtr conn, const char *xml)
{
return qemuDomainDefineXMLFlags(conn, xml, 0);
}
static int
qemuDomainUndefineFlags(virDomainPtr dom,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
virObjectEvent *event = NULL;
g_autofree char *name = NULL;
int ret = -1;
int nsnapshots;
int ncheckpoints;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
g_autofree char *nvram_path = NULL;
virCheckFlags(VIR_DOMAIN_UNDEFINE_MANAGED_SAVE |
VIR_DOMAIN_UNDEFINE_SNAPSHOTS_METADATA |
VIR_DOMAIN_UNDEFINE_CHECKPOINTS_METADATA |
VIR_DOMAIN_UNDEFINE_NVRAM |
VIR_DOMAIN_UNDEFINE_KEEP_NVRAM, -1);
if ((flags & VIR_DOMAIN_UNDEFINE_NVRAM) &&
(flags & VIR_DOMAIN_UNDEFINE_KEEP_NVRAM)) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cannot both keep and delete nvram"));
return -1;
}
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
cfg = virQEMUDriverGetConfig(driver);
if (virDomainUndefineFlagsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (!vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cannot undefine transient domain"));
goto endjob;
}
if (!virDomainObjIsActive(vm) &&
(nsnapshots = virDomainSnapshotObjListNum(vm->snapshots, NULL, 0))) {
if (!(flags & VIR_DOMAIN_UNDEFINE_SNAPSHOTS_METADATA)) {
virReportError(VIR_ERR_OPERATION_INVALID,
_("cannot delete inactive domain with %d "
"snapshots"),
nsnapshots);
goto endjob;
}
if (qemuDomainSnapshotDiscardAllMetadata(driver, vm) < 0)
goto endjob;
}
if (!virDomainObjIsActive(vm) &&
(ncheckpoints = virDomainListCheckpoints(vm->checkpoints, NULL, dom,
NULL, flags)) > 0) {
if (!(flags & VIR_DOMAIN_UNDEFINE_CHECKPOINTS_METADATA)) {
virReportError(VIR_ERR_OPERATION_INVALID,
_("cannot delete inactive domain with %d "
"checkpoints"),
ncheckpoints);
goto endjob;
}
if (qemuCheckpointDiscardAllMetadata(driver, vm) < 0)
goto endjob;
}
name = qemuDomainManagedSavePath(driver, vm);
if (virFileExists(name)) {
if (flags & VIR_DOMAIN_UNDEFINE_MANAGED_SAVE) {
if (unlink(name) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Failed to remove domain managed "
"save image"));
goto endjob;
}
} else {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("Refusing to undefine while domain managed "
"save image exists"));
goto endjob;
}
}
if (vm->def->os.loader && vm->def->os.loader->nvram &&
virStorageSourceIsLocalStorage(vm->def->os.loader->nvram)) {
nvram_path = g_strdup(vm->def->os.loader->nvram->path);
} else if (vm->def->os.firmware == VIR_DOMAIN_OS_DEF_FIRMWARE_EFI) {
qemuDomainNVRAMPathFormat(cfg, vm->def, &nvram_path);
}
if (nvram_path && virFileExists(nvram_path)) {
if ((flags & VIR_DOMAIN_UNDEFINE_NVRAM)) {
if (unlink(nvram_path) < 0) {
virReportSystemError(errno,
_("failed to remove nvram: %s"),
nvram_path);
goto endjob;
}
} else if (!(flags & VIR_DOMAIN_UNDEFINE_KEEP_NVRAM)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot undefine domain with nvram"));
goto endjob;
}
}
if (virDomainDeleteConfig(cfg->configDir, cfg->autostartDir, vm) < 0)
goto endjob;
event = virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_UNDEFINED,
VIR_DOMAIN_EVENT_UNDEFINED_REMOVED);
VIR_INFO("Undefining domain '%s'", vm->def->name);
/* If the domain is active, keep it running but set it as transient.
* domainDestroy and domainShutdown will take care of removing the
* domain obj from the hash table.
*/
vm->persistent = 0;
if (!virDomainObjIsActive(vm))
qemuDomainRemoveInactive(driver, vm);
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
return ret;
}
static int
qemuDomainUndefine(virDomainPtr dom)
{
return qemuDomainUndefineFlags(dom, 0);
}
static int
qemuDomainAttachDeviceLive(virDomainObj *vm,
virDomainDeviceDef *dev,
virQEMUDriver *driver)
{
int ret = -1;
const char *alias = NULL;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
struct qemuDomainPrepareChardevSourceData chardevBackendData = { .cfg = cfg,
.hotplug = true };
if (qemuDomainDeviceBackendChardevForeachOne(dev,
qemuDomainPrepareChardevSourceOne,
&chardevBackendData) < 0)
return -1;
switch ((virDomainDeviceType)dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
qemuDomainObjCheckDiskTaint(driver, vm, dev->data.disk, NULL);
ret = qemuDomainAttachDeviceDiskLive(driver, vm, dev);
if (!ret) {
alias = dev->data.disk->info.alias;
dev->data.disk = NULL;
}
break;
case VIR_DOMAIN_DEVICE_CONTROLLER:
ret = qemuDomainAttachControllerDevice(vm, dev->data.controller);
if (!ret) {
alias = dev->data.controller->info.alias;
dev->data.controller = NULL;
}
break;
case VIR_DOMAIN_DEVICE_LEASE:
ret = qemuDomainAttachLease(driver, vm,
dev->data.lease);
if (ret == 0)
dev->data.lease = NULL;
break;
case VIR_DOMAIN_DEVICE_NET:
qemuDomainObjCheckNetTaint(driver, vm, dev->data.net, NULL);
ret = qemuDomainAttachNetDevice(driver, vm, dev->data.net);
if (!ret) {
alias = dev->data.net->info.alias;
dev->data.net = NULL;
}
break;
case VIR_DOMAIN_DEVICE_HOSTDEV:
qemuDomainObjCheckHostdevTaint(driver, vm, dev->data.hostdev, NULL);
ret = qemuDomainAttachHostDevice(driver, vm,
dev->data.hostdev);
if (!ret) {
alias = dev->data.hostdev->info->alias;
dev->data.hostdev = NULL;
}
break;
case VIR_DOMAIN_DEVICE_REDIRDEV:
ret = qemuDomainAttachRedirdevDevice(driver, vm,
dev->data.redirdev);
if (!ret) {
alias = dev->data.redirdev->info.alias;
dev->data.redirdev = NULL;
}
break;
case VIR_DOMAIN_DEVICE_CHR:
ret = qemuDomainAttachChrDevice(driver, vm, dev);
if (!ret) {
alias = dev->data.chr->info.alias;
dev->data.chr = NULL;
}
break;
case VIR_DOMAIN_DEVICE_RNG:
ret = qemuDomainAttachRNGDevice(driver, vm,
dev->data.rng);
if (!ret) {
alias = dev->data.rng->info.alias;
dev->data.rng = NULL;
}
break;
case VIR_DOMAIN_DEVICE_MEMORY:
/* note that qemuDomainAttachMemory always consumes dev->data.memory
* and dispatches DeviceAdded event on success */
ret = qemuDomainAttachMemory(driver, vm,
dev->data.memory);
dev->data.memory = NULL;
break;
case VIR_DOMAIN_DEVICE_SHMEM:
ret = qemuDomainAttachShmemDevice(vm, dev->data.shmem);
if (!ret) {
alias = dev->data.shmem->info.alias;
dev->data.shmem = NULL;
}
break;
case VIR_DOMAIN_DEVICE_WATCHDOG:
ret = qemuDomainAttachWatchdog(vm, dev->data.watchdog);
if (!ret) {
alias = dev->data.watchdog->info.alias;
dev->data.watchdog = NULL;
}
break;
case VIR_DOMAIN_DEVICE_INPUT:
ret = qemuDomainAttachInputDevice(vm, dev->data.input);
if (ret == 0) {
alias = dev->data.input->info.alias;
dev->data.input = NULL;
}
break;
case VIR_DOMAIN_DEVICE_VSOCK:
ret = qemuDomainAttachVsockDevice(vm, dev->data.vsock);
if (ret == 0) {
alias = dev->data.vsock->info.alias;
dev->data.vsock = NULL;
}
break;
case VIR_DOMAIN_DEVICE_FS:
ret = qemuDomainAttachFSDevice(driver, vm, dev->data.fs);
if (ret == 0) {
alias = dev->data.fs->info.alias;
dev->data.fs = NULL;
}
break;
case VIR_DOMAIN_DEVICE_NONE:
case VIR_DOMAIN_DEVICE_SOUND:
case VIR_DOMAIN_DEVICE_VIDEO:
case VIR_DOMAIN_DEVICE_GRAPHICS:
case VIR_DOMAIN_DEVICE_HUB:
case VIR_DOMAIN_DEVICE_SMARTCARD:
case VIR_DOMAIN_DEVICE_MEMBALLOON:
case VIR_DOMAIN_DEVICE_NVRAM:
case VIR_DOMAIN_DEVICE_TPM:
case VIR_DOMAIN_DEVICE_PANIC:
case VIR_DOMAIN_DEVICE_IOMMU:
case VIR_DOMAIN_DEVICE_AUDIO:
case VIR_DOMAIN_DEVICE_LAST:
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("live attach of device '%s' is not supported"),
virDomainDeviceTypeToString(dev->type));
break;
}
if (alias) {
/* queue the event before the alias has a chance to get freed
* if the domain disappears while qemuDomainUpdateDeviceList
* is in monitor */
virObjectEvent *event;
event = virDomainEventDeviceAddedNewFromObj(vm, alias);
virObjectEventStateQueue(driver->domainEventState, event);
}
if (ret == 0)
ret = qemuDomainUpdateDeviceList(vm, VIR_ASYNC_JOB_NONE);
return ret;
}
static int
qemuDomainChangeDiskLive(virDomainObj *vm,
virDomainDeviceDef *dev,
virQEMUDriver *driver,
bool force)
{
virDomainDiskDef *disk = dev->data.disk;
virDomainDiskDef *orig_disk = NULL;
virDomainStartupPolicy origStartupPolicy;
virDomainDeviceDef oldDev = { .type = dev->type };
if (!(orig_disk = virDomainDiskByTarget(vm->def, disk->dst))) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("disk '%s' not found"), disk->dst);
return -1;
}
oldDev.data.disk = orig_disk;
origStartupPolicy = orig_disk->startupPolicy;
if (virDomainDefCompatibleDevice(vm->def, dev, &oldDev,
VIR_DOMAIN_DEVICE_ACTION_UPDATE,
true) < 0)
return -1;
if (!qemuDomainDiskChangeSupported(disk, orig_disk))
return -1;
if (!virStorageSourceIsSameLocation(disk->src, orig_disk->src)) {
/* Disk source can be changed only for removable devices */
if (disk->device != VIR_DOMAIN_DISK_DEVICE_CDROM &&
disk->device != VIR_DOMAIN_DISK_DEVICE_FLOPPY) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("disk source can be changed only in removable "
"drives"));
return -1;
}
/* update startup policy first before updating disk image */
orig_disk->startupPolicy = dev->data.disk->startupPolicy;
if (qemuDomainChangeEjectableMedia(driver, vm, orig_disk,
dev->data.disk->src, force) < 0) {
/* revert startup policy before failing */
orig_disk->startupPolicy = origStartupPolicy;
return -1;
}
dev->data.disk->src = NULL;
}
/* in case when we aren't updating disk source we update startup policy here */
orig_disk->startupPolicy = dev->data.disk->startupPolicy;
orig_disk->snapshot = dev->data.disk->snapshot;
return 0;
}
static bool
qemuDomainChangeMemoryLiveValidateChange(const virDomainMemoryDef *oldDef,
const virDomainMemoryDef *newDef)
{
/* The only thing that is allowed to change is 'requestedsize' for
* virtio-mem model. Check if user isn't trying to sneak in change for
* something else. */
switch (oldDef->model) {
case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM:
break;
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
case VIR_DOMAIN_MEMORY_MODEL_NVDIMM:
case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_PMEM:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("cannot modify memory of model '%s'"),
virDomainMemoryModelTypeToString(oldDef->model));
return false;
break;
}
if (oldDef->model != newDef->model) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("cannot modify memory model from '%s' to '%s'"),
virDomainMemoryModelTypeToString(oldDef->model),
virDomainMemoryModelTypeToString(newDef->model));
return false;
}
if (oldDef->access != newDef->access) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("cannot modify memory access from '%s' to '%s'"),
virDomainMemoryAccessTypeToString(oldDef->access),
virDomainMemoryAccessTypeToString(newDef->access));
return false;
}
if (oldDef->discard != newDef->discard) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("cannot modify memory discard from '%s' to '%s'"),
virTristateBoolTypeToString(oldDef->discard),
virTristateBoolTypeToString(newDef->discard));
return false;
}
if (!virBitmapEqual(oldDef->sourceNodes,
newDef->sourceNodes)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("cannot modify memory source nodes"));
return false;
}
if (oldDef->pagesize != newDef->pagesize) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("cannot modify memory pagesize from '%llu' to '%llu'"),
oldDef->pagesize,
newDef->pagesize);
return false;
}
if (STRNEQ_NULLABLE(oldDef->nvdimmPath, newDef->nvdimmPath)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("cannot modify memory path from '%s' to '%s'"),
NULLSTR(oldDef->nvdimmPath),
NULLSTR(newDef->nvdimmPath));
return false;
}
if (oldDef->alignsize != newDef->alignsize) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("cannot modify memory align size from '%llu' to '%llu'"),
oldDef->alignsize, newDef->alignsize);
return false;
}
if (oldDef->nvdimmPmem != newDef->nvdimmPmem) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("cannot modify memory pmem from '%d' to '%d'"),
oldDef->nvdimmPmem, newDef->nvdimmPmem);
return false;
}
if (oldDef->targetNode != newDef->targetNode) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("cannot modify memory targetNode from '%d' to '%d'"),
oldDef->targetNode, newDef->targetNode);
return false;
}
if (oldDef->size != newDef->size) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("cannot modify memory size from '%llu' to '%llu'"),
oldDef->size, newDef->size);
return false;
}
if (oldDef->labelsize != newDef->labelsize) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("cannot modify memory label size from '%llu' to '%llu'"),
oldDef->labelsize, newDef->labelsize);
return false;
}
if (oldDef->blocksize != newDef->blocksize) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("cannot modify memory block size from '%llu' to '%llu'"),
oldDef->blocksize, newDef->blocksize);
return false;
}
/* requestedsize can change */
if (oldDef->readonly != newDef->readonly) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("cannot modify memory pmem flag"));
return false;
}
if ((oldDef->uuid || newDef->uuid) &&
!(oldDef->uuid && newDef->uuid &&
memcmp(oldDef->uuid, newDef->uuid, VIR_UUID_BUFLEN) == 0)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("cannot modify memory UUID"));
return false;
}
return true;
}
static int
qemuDomainChangeMemoryLive(virQEMUDriver *driver G_GNUC_UNUSED,
virDomainObj *vm,
virDomainDeviceDef *dev)
{
virDomainDeviceDef oldDev = { .type = VIR_DOMAIN_DEVICE_MEMORY };
virDomainMemoryDef *newDef = dev->data.memory;
virDomainMemoryDef *oldDef = NULL;
oldDef = virDomainMemoryFindByDeviceInfo(vm->def, &dev->data.memory->info, NULL);
if (!oldDef) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("memory '%s' not found"), dev->data.memory->info.alias);
return -1;
}
oldDev.data.memory = oldDef;
if (virDomainDefCompatibleDevice(vm->def, dev, &oldDev,
VIR_DOMAIN_DEVICE_ACTION_UPDATE,
true) < 0)
return -1;
if (!qemuDomainChangeMemoryLiveValidateChange(oldDef, newDef))
return -1;
if (qemuDomainChangeMemoryRequestedSize(vm, newDef->info.alias,
newDef->requestedsize) < 0)
return -1;
oldDef->requestedsize = newDef->requestedsize;
return 0;
}
static int
qemuDomainUpdateDeviceLive(virDomainObj *vm,
virDomainDeviceDef *dev,
virDomainPtr dom,
bool force)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainDeviceDef oldDev = { .type = dev->type };
int idx;
switch ((virDomainDeviceType)dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
qemuDomainObjCheckDiskTaint(driver, vm, dev->data.disk, NULL);
return qemuDomainChangeDiskLive(vm, dev, driver, force);
case VIR_DOMAIN_DEVICE_GRAPHICS:
if ((idx = qemuDomainFindGraphicsIndex(vm->def, dev->data.graphics)) >= 0) {
oldDev.data.graphics = vm->def->graphics[idx];
if (virDomainDefCompatibleDevice(vm->def, dev, &oldDev,
VIR_DOMAIN_DEVICE_ACTION_UPDATE,
true) < 0)
return -1;
}
return qemuDomainChangeGraphics(driver, vm, dev->data.graphics);
case VIR_DOMAIN_DEVICE_NET:
if ((idx = virDomainNetFindIdx(vm->def, dev->data.net)) >= 0) {
oldDev.data.net = vm->def->nets[idx];
if (virDomainDefCompatibleDevice(vm->def, dev, &oldDev,
VIR_DOMAIN_DEVICE_ACTION_UPDATE,
true) < 0)
return -1;
}
return qemuDomainChangeNet(driver, vm, dev);
case VIR_DOMAIN_DEVICE_MEMORY:
return qemuDomainChangeMemoryLive(driver, vm, dev);
case VIR_DOMAIN_DEVICE_FS:
case VIR_DOMAIN_DEVICE_INPUT:
case VIR_DOMAIN_DEVICE_SOUND:
case VIR_DOMAIN_DEVICE_VIDEO:
case VIR_DOMAIN_DEVICE_WATCHDOG:
case VIR_DOMAIN_DEVICE_HUB:
case VIR_DOMAIN_DEVICE_SMARTCARD:
case VIR_DOMAIN_DEVICE_MEMBALLOON:
case VIR_DOMAIN_DEVICE_NVRAM:
case VIR_DOMAIN_DEVICE_RNG:
case VIR_DOMAIN_DEVICE_SHMEM:
case VIR_DOMAIN_DEVICE_LEASE:
case VIR_DOMAIN_DEVICE_HOSTDEV:
case VIR_DOMAIN_DEVICE_CONTROLLER:
case VIR_DOMAIN_DEVICE_REDIRDEV:
case VIR_DOMAIN_DEVICE_CHR:
case VIR_DOMAIN_DEVICE_NONE:
case VIR_DOMAIN_DEVICE_TPM:
case VIR_DOMAIN_DEVICE_PANIC:
case VIR_DOMAIN_DEVICE_IOMMU:
case VIR_DOMAIN_DEVICE_VSOCK:
case VIR_DOMAIN_DEVICE_AUDIO:
case VIR_DOMAIN_DEVICE_LAST:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("live update of device '%s' is not supported"),
virDomainDeviceTypeToString(dev->type));
return -1;
}
return -1;
}
static int
qemuCheckDiskConfigAgainstDomain(const virDomainDef *def,
const virDomainDiskDef *disk)
{
if (disk->bus == VIR_DOMAIN_DISK_BUS_SCSI &&
virDomainSCSIDriveAddressIsUsed(def, &disk->info.addr.drive)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("Domain already contains a disk with that address"));
return -1;
}
return 0;
}
static int
qemuDomainAttachDeviceConfig(virDomainDef *vmdef,
virDomainDeviceDef *dev,
virQEMUCaps *qemuCaps,
unsigned int parse_flags,
virDomainXMLOption *xmlopt)
{
virDomainDiskDef *disk;
virDomainNetDef *net;
virDomainSoundDef *sound;
virDomainHostdevDef *hostdev;
virDomainLeaseDef *lease;
virDomainControllerDef *controller;
virDomainFSDef *fs;
virDomainRedirdevDef *redirdev;
virDomainShmemDef *shmem;
switch ((virDomainDeviceType)dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
disk = dev->data.disk;
if (virDomainDiskIndexByName(vmdef, disk->dst, true) >= 0) {
virReportError(VIR_ERR_OPERATION_INVALID,
_("target %s already exists"), disk->dst);
return -1;
}
if (virDomainDiskTranslateSourcePool(disk) < 0)
return -1;
if (qemuCheckDiskConfigAgainstDomain(vmdef, disk) < 0)
return -1;
virDomainDiskInsert(vmdef, disk);
/* vmdef has the pointer. Generic codes for vmdef will do all jobs */
dev->data.disk = NULL;
break;
case VIR_DOMAIN_DEVICE_NET:
net = dev->data.net;
if (virDomainNetInsert(vmdef, net))
return -1;
dev->data.net = NULL;
break;
case VIR_DOMAIN_DEVICE_SOUND:
sound = dev->data.sound;
VIR_APPEND_ELEMENT(vmdef->sounds, vmdef->nsounds, sound);
dev->data.sound = NULL;
break;
case VIR_DOMAIN_DEVICE_HOSTDEV:
hostdev = dev->data.hostdev;
if (virDomainHostdevFind(vmdef, hostdev, NULL) >= 0) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("device is already in the domain configuration"));
return -1;
}
if (virDomainHostdevInsert(vmdef, hostdev))
return -1;
dev->data.hostdev = NULL;
break;
case VIR_DOMAIN_DEVICE_LEASE:
lease = dev->data.lease;
if (virDomainLeaseIndex(vmdef, lease) >= 0) {
virReportError(VIR_ERR_OPERATION_INVALID,
_("Lease %s in lockspace %s already exists"),
lease->key, NULLSTR(lease->lockspace));
return -1;
}
virDomainLeaseInsert(vmdef, lease);
/* vmdef has the pointer. Generic codes for vmdef will do all jobs */
dev->data.lease = NULL;
break;
case VIR_DOMAIN_DEVICE_CONTROLLER:
controller = dev->data.controller;
if (controller->idx != -1 &&
virDomainControllerFind(vmdef, controller->type,
controller->idx) >= 0) {
virReportError(VIR_ERR_OPERATION_INVALID,
_("controller index='%d' already exists"),
controller->idx);
return -1;
}
virDomainControllerInsert(vmdef, controller);
dev->data.controller = NULL;
break;
case VIR_DOMAIN_DEVICE_CHR:
if (qemuDomainChrInsert(vmdef, dev->data.chr) < 0)
return -1;
dev->data.chr = NULL;
break;
case VIR_DOMAIN_DEVICE_FS:
fs = dev->data.fs;
if (virDomainFSIndexByName(vmdef, fs->dst) >= 0) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("Target already exists"));
return -1;
}
if (virDomainFSInsert(vmdef, fs) < 0)
return -1;
dev->data.fs = NULL;
break;
case VIR_DOMAIN_DEVICE_RNG:
if (dev->data.rng->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE &&
virDomainDefHasDeviceAddress(vmdef, &dev->data.rng->info)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("a device with the same address already exists "));
return -1;
}
VIR_APPEND_ELEMENT(vmdef->rngs, vmdef->nrngs, dev->data.rng);
break;
case VIR_DOMAIN_DEVICE_MEMORY:
if (vmdef->nmems == vmdef->mem.memory_slots) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("no free memory device slot available"));
return -1;
}
vmdef->mem.cur_balloon += dev->data.memory->size;
if (virDomainMemoryInsert(vmdef, dev->data.memory) < 0)
return -1;
dev->data.memory = NULL;
break;
case VIR_DOMAIN_DEVICE_REDIRDEV:
redirdev = dev->data.redirdev;
VIR_APPEND_ELEMENT(vmdef->redirdevs, vmdef->nredirdevs, redirdev);
dev->data.redirdev = NULL;
break;
case VIR_DOMAIN_DEVICE_SHMEM:
shmem = dev->data.shmem;
if (virDomainShmemDefFind(vmdef, shmem) >= 0) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("device is already in the domain configuration"));
return -1;
}
if (virDomainShmemDefInsert(vmdef, shmem) < 0)
return -1;
dev->data.shmem = NULL;
break;
case VIR_DOMAIN_DEVICE_WATCHDOG:
if (vmdef->watchdog) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("domain already has a watchdog"));
return -1;
}
vmdef->watchdog = g_steal_pointer(&dev->data.watchdog);
break;
case VIR_DOMAIN_DEVICE_INPUT:
VIR_APPEND_ELEMENT(vmdef->inputs, vmdef->ninputs, dev->data.input);
break;
case VIR_DOMAIN_DEVICE_VSOCK:
if (vmdef->vsock) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("domain already has a vsock device"));
return -1;
}
vmdef->vsock = g_steal_pointer(&dev->data.vsock);
break;
case VIR_DOMAIN_DEVICE_VIDEO:
case VIR_DOMAIN_DEVICE_GRAPHICS:
case VIR_DOMAIN_DEVICE_HUB:
case VIR_DOMAIN_DEVICE_SMARTCARD:
case VIR_DOMAIN_DEVICE_MEMBALLOON:
case VIR_DOMAIN_DEVICE_NVRAM:
case VIR_DOMAIN_DEVICE_NONE:
case VIR_DOMAIN_DEVICE_TPM:
case VIR_DOMAIN_DEVICE_PANIC:
case VIR_DOMAIN_DEVICE_IOMMU:
case VIR_DOMAIN_DEVICE_AUDIO:
case VIR_DOMAIN_DEVICE_LAST:
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("persistent attach of device '%s' is not supported"),
virDomainDeviceTypeToString(dev->type));
return -1;
}
if (virDomainDefPostParse(vmdef, parse_flags, xmlopt, qemuCaps) < 0)
return -1;
return 0;
}
static int
qemuDomainDetachDeviceConfig(virDomainDef *vmdef,
virDomainDeviceDef *dev,
virQEMUCaps *qemuCaps,
unsigned int parse_flags,
virDomainXMLOption *xmlopt)
{
virDomainDiskDef *disk;
virDomainDiskDef *det_disk;
virDomainNetDef *net;
virDomainSoundDef *sound;
virDomainHostdevDef *hostdev;
virDomainHostdevDef *det_hostdev;
virDomainLeaseDef *lease;
virDomainLeaseDef *det_lease;
virDomainControllerDef *cont;
virDomainControllerDef *det_cont;
virDomainChrDef *chr;
virDomainFSDef *fs;
virDomainMemoryDef *mem;
int idx;
switch ((virDomainDeviceType)dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
disk = dev->data.disk;
if (!(det_disk = virDomainDiskRemoveByName(vmdef, disk->dst))) {
virReportError(VIR_ERR_DEVICE_MISSING,
_("no target device %s"), disk->dst);
return -1;
}
virDomainDiskDefFree(det_disk);
break;
case VIR_DOMAIN_DEVICE_NET:
net = dev->data.net;
if ((idx = virDomainNetFindIdx(vmdef, net)) < 0)
return -1;
/* this is guaranteed to succeed */
virDomainNetDefFree(virDomainNetRemove(vmdef, idx));
break;
case VIR_DOMAIN_DEVICE_SOUND:
sound = dev->data.sound;
if ((idx = virDomainSoundDefFind(vmdef, sound)) < 0) {
virReportError(VIR_ERR_DEVICE_MISSING, "%s",
_("device not present in domain configuration"));
return -1;
}
virDomainSoundDefFree(virDomainSoundDefRemove(vmdef, idx));
break;
case VIR_DOMAIN_DEVICE_HOSTDEV: {
hostdev = dev->data.hostdev;
if ((idx = virDomainHostdevFind(vmdef, hostdev, &det_hostdev)) < 0) {
virReportError(VIR_ERR_DEVICE_MISSING, "%s",
_("device not present in domain configuration"));
return -1;
}
virDomainHostdevRemove(vmdef, idx);
virDomainHostdevDefFree(det_hostdev);
break;
}
case VIR_DOMAIN_DEVICE_LEASE:
lease = dev->data.lease;
if (!(det_lease = virDomainLeaseRemove(vmdef, lease))) {
virReportError(VIR_ERR_DEVICE_MISSING,
_("Lease %s in lockspace %s does not exist"),
lease->key, NULLSTR(lease->lockspace));
return -1;
}
virDomainLeaseDefFree(det_lease);
break;
case VIR_DOMAIN_DEVICE_CONTROLLER:
cont = dev->data.controller;
if ((idx = virDomainControllerFind(vmdef, cont->type,
cont->idx)) < 0) {
virReportError(VIR_ERR_DEVICE_MISSING, "%s",
_("device not present in domain configuration"));
return -1;
}
det_cont = virDomainControllerRemove(vmdef, idx);
virDomainControllerDefFree(det_cont);
break;
case VIR_DOMAIN_DEVICE_CHR:
if (!(chr = qemuDomainChrRemove(vmdef, dev->data.chr)))
return -1;
virDomainChrDefFree(chr);
break;
case VIR_DOMAIN_DEVICE_FS:
fs = dev->data.fs;
idx = virDomainFSIndexByName(vmdef, fs->dst);
if (idx < 0) {
virReportError(VIR_ERR_DEVICE_MISSING, "%s",
_("no matching filesystem device was found"));
return -1;
}
fs = virDomainFSRemove(vmdef, idx);
virDomainFSDefFree(fs);
break;
case VIR_DOMAIN_DEVICE_RNG:
if ((idx = virDomainRNGFind(vmdef, dev->data.rng)) < 0) {
virReportError(VIR_ERR_DEVICE_MISSING, "%s",
_("no matching RNG device was found"));
return -1;
}
virDomainRNGDefFree(virDomainRNGRemove(vmdef, idx));
break;
case VIR_DOMAIN_DEVICE_MEMORY:
if ((idx = virDomainMemoryFindInactiveByDef(vmdef,
dev->data.memory)) < 0) {
virReportError(VIR_ERR_DEVICE_MISSING, "%s",
_("matching memory device was not found"));
return -1;
}
mem = virDomainMemoryRemove(vmdef, idx);
vmdef->mem.cur_balloon -= mem->size;
virDomainMemoryDefFree(mem);
break;
case VIR_DOMAIN_DEVICE_REDIRDEV:
if ((idx = virDomainRedirdevDefFind(vmdef,
dev->data.redirdev)) < 0) {
virReportError(VIR_ERR_DEVICE_MISSING, "%s",
_("no matching redirdev was not found"));
return -1;
}
virDomainRedirdevDefFree(virDomainRedirdevDefRemove(vmdef, idx));
break;
case VIR_DOMAIN_DEVICE_SHMEM:
if ((idx = virDomainShmemDefFind(vmdef, dev->data.shmem)) < 0) {
virReportError(VIR_ERR_DEVICE_MISSING, "%s",
_("matching shmem device was not found"));
return -1;
}
virDomainShmemDefFree(virDomainShmemDefRemove(vmdef, idx));
break;
case VIR_DOMAIN_DEVICE_WATCHDOG:
if (!vmdef->watchdog) {
virReportError(VIR_ERR_DEVICE_MISSING, "%s",
_("domain has no watchdog"));
return -1;
}
g_clear_pointer(&vmdef->watchdog, virDomainWatchdogDefFree);
break;
case VIR_DOMAIN_DEVICE_INPUT:
if ((idx = virDomainInputDefFind(vmdef, dev->data.input)) < 0) {
virReportError(VIR_ERR_DEVICE_MISSING, "%s",
_("matching input device not found"));
return -1;
}
VIR_DELETE_ELEMENT(vmdef->inputs, idx, vmdef->ninputs);
break;
case VIR_DOMAIN_DEVICE_VSOCK:
if (!vmdef->vsock ||
!virDomainVsockDefEquals(dev->data.vsock, vmdef->vsock)) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("matching vsock device not found"));
return -1;
}
g_clear_pointer(&vmdef->vsock, virDomainVsockDefFree);
break;
case VIR_DOMAIN_DEVICE_VIDEO:
case VIR_DOMAIN_DEVICE_GRAPHICS:
case VIR_DOMAIN_DEVICE_HUB:
case VIR_DOMAIN_DEVICE_SMARTCARD:
case VIR_DOMAIN_DEVICE_MEMBALLOON:
case VIR_DOMAIN_DEVICE_NVRAM:
case VIR_DOMAIN_DEVICE_NONE:
case VIR_DOMAIN_DEVICE_TPM:
case VIR_DOMAIN_DEVICE_PANIC:
case VIR_DOMAIN_DEVICE_IOMMU:
case VIR_DOMAIN_DEVICE_AUDIO:
case VIR_DOMAIN_DEVICE_LAST:
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("persistent detach of device '%s' is not supported"),
virDomainDeviceTypeToString(dev->type));
return -1;
}
if (virDomainDefPostParse(vmdef, parse_flags, xmlopt, qemuCaps) < 0)
return -1;
return 0;
}
static int
qemuDomainUpdateDeviceConfig(virDomainDef *vmdef,
virDomainDeviceDef *dev,
virQEMUCaps *qemuCaps,
unsigned int parse_flags,
virDomainXMLOption *xmlopt)
{
virDomainDiskDef *newDisk;
virDomainGraphicsDef *newGraphics;
virDomainNetDef *net;
virDomainMemoryDef *mem;
virDomainDeviceDef oldDev = { .type = dev->type };
int pos;
switch ((virDomainDeviceType)dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
newDisk = dev->data.disk;
if ((pos = virDomainDiskIndexByName(vmdef, newDisk->dst, false)) < 0) {
virReportError(VIR_ERR_INVALID_ARG,
_("target %s doesn't exist."), newDisk->dst);
return -1;
}
oldDev.data.disk = vmdef->disks[pos];
if (virDomainDefCompatibleDevice(vmdef, dev, &oldDev,
VIR_DOMAIN_DEVICE_ACTION_UPDATE,
false) < 0)
return -1;
virDomainDiskDefFree(vmdef->disks[pos]);
vmdef->disks[pos] = newDisk;
dev->data.disk = NULL;
break;
case VIR_DOMAIN_DEVICE_GRAPHICS:
newGraphics = dev->data.graphics;
pos = qemuDomainFindGraphicsIndex(vmdef, newGraphics);
if (pos < 0) {
virReportError(VIR_ERR_INVALID_ARG,
_("cannot find existing graphics type '%s' device to modify"),
virDomainGraphicsTypeToString(newGraphics->type));
return -1;
}
oldDev.data.graphics = vmdef->graphics[pos];
if (virDomainDefCompatibleDevice(vmdef, dev, &oldDev,
VIR_DOMAIN_DEVICE_ACTION_UPDATE,
false) < 0)
return -1;
virDomainGraphicsDefFree(vmdef->graphics[pos]);
vmdef->graphics[pos] = newGraphics;
dev->data.graphics = NULL;
break;
case VIR_DOMAIN_DEVICE_NET:
net = dev->data.net;
if ((pos = virDomainNetFindIdx(vmdef, net)) < 0)
return -1;
oldDev.data.net = vmdef->nets[pos];
if (virDomainDefCompatibleDevice(vmdef, dev, &oldDev,
VIR_DOMAIN_DEVICE_ACTION_UPDATE,
false) < 0)
return -1;
if (virDomainNetUpdate(vmdef, pos, net))
return -1;
virDomainNetDefFree(oldDev.data.net);
dev->data.net = NULL;
break;
case VIR_DOMAIN_DEVICE_MEMORY:
mem = virDomainMemoryFindByDeviceInfo(vmdef, &dev->data.memory->info, &pos);
if (!mem) {
virReportError(VIR_ERR_INVALID_ARG, "%s", _("memory not found"));
return -1;
}
oldDev.data.memory = mem;
if (virDomainDefCompatibleDevice(vmdef, dev, &oldDev,
VIR_DOMAIN_DEVICE_ACTION_UPDATE,
false) < 0)
return -1;
virDomainMemoryDefFree(vmdef->mems[pos]);
vmdef->mems[pos] = g_steal_pointer(&dev->data.memory);
break;
case VIR_DOMAIN_DEVICE_FS:
case VIR_DOMAIN_DEVICE_INPUT:
case VIR_DOMAIN_DEVICE_SOUND:
case VIR_DOMAIN_DEVICE_VIDEO:
case VIR_DOMAIN_DEVICE_WATCHDOG:
case VIR_DOMAIN_DEVICE_HUB:
case VIR_DOMAIN_DEVICE_SMARTCARD:
case VIR_DOMAIN_DEVICE_MEMBALLOON:
case VIR_DOMAIN_DEVICE_NVRAM:
case VIR_DOMAIN_DEVICE_RNG:
case VIR_DOMAIN_DEVICE_SHMEM:
case VIR_DOMAIN_DEVICE_LEASE:
case VIR_DOMAIN_DEVICE_HOSTDEV:
case VIR_DOMAIN_DEVICE_CONTROLLER:
case VIR_DOMAIN_DEVICE_REDIRDEV:
case VIR_DOMAIN_DEVICE_CHR:
case VIR_DOMAIN_DEVICE_NONE:
case VIR_DOMAIN_DEVICE_TPM:
case VIR_DOMAIN_DEVICE_PANIC:
case VIR_DOMAIN_DEVICE_IOMMU:
case VIR_DOMAIN_DEVICE_VSOCK:
case VIR_DOMAIN_DEVICE_AUDIO:
case VIR_DOMAIN_DEVICE_LAST:
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("persistent update of device '%s' is not supported"),
virDomainDeviceTypeToString(dev->type));
return -1;
}
if (virDomainDefPostParse(vmdef, parse_flags, xmlopt, qemuCaps) < 0)
return -1;
return 0;
}
static void
qemuDomainAttachDeviceLiveAndConfigHomogenize(const virDomainDeviceDef *devConf,
virDomainDeviceDef *devLive)
{
/*
* Fixup anything that needs to be identical in the live and
* config versions of DeviceDef, but might not be. Do this by
* changing the contents of devLive. This is done after all
* post-parse tweaks and validation, so be very careful about what
* changes are made. (For example, it would be a very bad idea to
* change assigned PCI, scsi, or sata addresses, as it could lead
* to a conflict and there would be nothing to catch it except
* qemu itself!)
*/
/* MAC address should be identical in both DeviceDefs, but if it
* wasn't specified in the XML, and was instead autogenerated, it
* will be different for the two since they are each the result of
* a separate parser call. If it *was* specified, it will already
* be the same, so copying does no harm.
*/
if (devConf->type == VIR_DOMAIN_DEVICE_NET)
virMacAddrSet(&devLive->data.net->mac, &devConf->data.net->mac);
}
static int
qemuDomainAttachDeviceLiveAndConfig(virDomainObj *vm,
virQEMUDriver *driver,
const char *xml,
unsigned int flags)
{
qemuDomainObjPrivate *priv = vm->privateData;
g_autoptr(virDomainDef) vmdef = NULL;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
g_autoptr(virDomainDeviceDef) devConf = NULL;
virDomainDeviceDef devConfSave = { 0 };
g_autoptr(virDomainDeviceDef) devLive = NULL;
unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_INACTIVE |
VIR_DOMAIN_DEF_PARSE_ABI_UPDATE;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
cfg = virQEMUDriverGetConfig(driver);
/* The config and live post processing address auto-generation algorithms
* rely on the correct vm->def or vm->newDef being passed, so call the
* device parse based on which definition is in use */
if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
vmdef = virDomainObjCopyPersistentDef(vm, driver->xmlopt,
priv->qemuCaps);
if (!vmdef)
return -1;
if (!(devConf = virDomainDeviceDefParse(xml, vmdef,
driver->xmlopt, priv->qemuCaps,
parse_flags)))
return -1;
/*
* devConf will be NULLed out by
* qemuDomainAttachDeviceConfig(), so save it for later use by
* qemuDomainAttachDeviceLiveAndConfigHomogenize()
*/
devConfSave = *devConf;
if (virDomainDeviceValidateAliasForHotplug(vm, devConf,
VIR_DOMAIN_AFFECT_CONFIG) < 0)
return -1;
if (virDomainDefCompatibleDevice(vmdef, devConf, NULL,
VIR_DOMAIN_DEVICE_ACTION_ATTACH,
false) < 0)
return -1;
if (qemuDomainAttachDeviceConfig(vmdef, devConf, priv->qemuCaps,
parse_flags,
driver->xmlopt) < 0)
return -1;
}
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
if (!(devLive = virDomainDeviceDefParse(xml, vm->def,
driver->xmlopt, priv->qemuCaps,
parse_flags)))
return -1;
if (flags & VIR_DOMAIN_AFFECT_CONFIG)
qemuDomainAttachDeviceLiveAndConfigHomogenize(&devConfSave, devLive);
if (virDomainDeviceValidateAliasForHotplug(vm, devLive,
VIR_DOMAIN_AFFECT_LIVE) < 0)
return -1;
if (virDomainDefCompatibleDevice(vm->def, devLive, NULL,
VIR_DOMAIN_DEVICE_ACTION_ATTACH,
true) < 0)
return -1;
if (qemuDomainAttachDeviceLive(vm, devLive, driver) < 0)
return -1;
/*
* update domain status forcibly because the domain status may be
* changed even if we failed to attach the device. For example,
* a new controller may be created.
*/
qemuDomainSaveStatus(vm);
}
/* Finally, if no error until here, we can save config. */
if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
if (virDomainDefSave(vmdef, driver->xmlopt, cfg->configDir) < 0)
return -1;
virDomainObjAssignDef(vm, &vmdef, false, NULL);
}
return 0;
}
static int
qemuDomainAttachDeviceFlags(virDomainPtr dom,
const char *xml,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
int ret = -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainAttachDeviceFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjUpdateModificationImpact(vm, &flags) < 0)
goto endjob;
if (qemuDomainAttachDeviceLiveAndConfig(vm, driver, xml, flags) < 0)
goto endjob;
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int qemuDomainAttachDevice(virDomainPtr dom, const char *xml)
{
return qemuDomainAttachDeviceFlags(dom, xml,
VIR_DOMAIN_AFFECT_LIVE);
}
static int qemuDomainUpdateDeviceFlags(virDomainPtr dom,
const char *xml,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
qemuDomainObjPrivate *priv;
g_autoptr(virDomainDef) vmdef = NULL;
g_autoptr(virDomainDeviceDef) dev = NULL;
virDomainDeviceDef *dev_copy = NULL;
bool force = (flags & VIR_DOMAIN_DEVICE_MODIFY_FORCE) != 0;
int ret = -1;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
unsigned int parse_flags = 0;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG |
VIR_DOMAIN_DEVICE_MODIFY_FORCE, -1);
cfg = virQEMUDriverGetConfig(driver);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
priv = vm->privateData;
if (virDomainUpdateDeviceFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjUpdateModificationImpact(vm, &flags) < 0)
goto endjob;
if ((flags & VIR_DOMAIN_AFFECT_CONFIG) &&
!(flags & VIR_DOMAIN_AFFECT_LIVE))
parse_flags |= VIR_DOMAIN_DEF_PARSE_INACTIVE;
dev = dev_copy = virDomainDeviceDefParse(xml, vm->def,
driver->xmlopt, priv->qemuCaps,
parse_flags);
if (dev == NULL)
goto endjob;
if (flags & VIR_DOMAIN_AFFECT_CONFIG &&
flags & VIR_DOMAIN_AFFECT_LIVE) {
/* If we are affecting both CONFIG and LIVE
* create a deep copy of device as adding
* to CONFIG takes one instance.
*/
dev_copy = virDomainDeviceDefCopy(dev, vm->def,
driver->xmlopt, priv->qemuCaps);
if (!dev_copy)
goto endjob;
}
if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
/* Make a copy for updated domain. */
vmdef = virDomainObjCopyPersistentDef(vm, driver->xmlopt,
priv->qemuCaps);
if (!vmdef)
goto endjob;
/* virDomainDefCompatibleDevice call is delayed until we know the
* device we're going to update. */
if ((ret = qemuDomainUpdateDeviceConfig(vmdef, dev_copy, priv->qemuCaps,
parse_flags,
driver->xmlopt)) < 0)
goto endjob;
}
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
/* virDomainDefCompatibleDevice call is delayed until we know the
* device we're going to update. */
if ((ret = qemuDomainUpdateDeviceLive(vm, dev, dom, force)) < 0)
goto endjob;
qemuDomainSaveStatus(vm);
}
/* Finally, if no error until here, we can save config. */
if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
ret = virDomainDefSave(vmdef, driver->xmlopt, cfg->configDir);
if (!ret)
virDomainObjAssignDef(vm, &vmdef, false, NULL);
}
endjob:
qemuDomainObjEndJob(vm);
cleanup:
if (dev != dev_copy)
virDomainDeviceDefFree(dev_copy);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainDetachDeviceLiveAndConfig(virQEMUDriver *driver,
virDomainObj *vm,
const char *xml,
unsigned int flags)
{
qemuDomainObjPrivate *priv = vm->privateData;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
g_autoptr(virDomainDeviceDef) dev = NULL;
virDomainDeviceDef *dev_copy = NULL;
unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_SKIP_VALIDATE;
g_autoptr(virDomainDef) vmdef = NULL;
int ret = -1;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
cfg = virQEMUDriverGetConfig(driver);
if ((flags & VIR_DOMAIN_AFFECT_CONFIG) &&
!(flags & VIR_DOMAIN_AFFECT_LIVE))
parse_flags |= VIR_DOMAIN_DEF_PARSE_INACTIVE;
dev = dev_copy = virDomainDeviceDefParse(xml, vm->def,
driver->xmlopt, priv->qemuCaps,
parse_flags);
if (dev == NULL)
goto cleanup;
if (flags & VIR_DOMAIN_AFFECT_CONFIG &&
flags & VIR_DOMAIN_AFFECT_LIVE) {
/* If we are affecting both CONFIG and LIVE
* create a deep copy of device as adding
* to CONFIG takes one instance.
*/
dev_copy = virDomainDeviceDefCopy(dev, vm->def,
driver->xmlopt, priv->qemuCaps);
if (!dev_copy)
goto cleanup;
}
if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
/* Make a copy for updated domain. */
vmdef = virDomainObjCopyPersistentDef(vm, driver->xmlopt, priv->qemuCaps);
if (!vmdef)
goto cleanup;
if (qemuDomainDetachDeviceConfig(vmdef, dev_copy, priv->qemuCaps,
parse_flags,
driver->xmlopt) < 0)
goto cleanup;
}
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
int rc;
if ((rc = qemuDomainDetachDeviceLive(vm, dev, driver, false)) < 0)
goto cleanup;
if (rc == 0 && qemuDomainUpdateDeviceList(vm, VIR_ASYNC_JOB_NONE) < 0)
goto cleanup;
qemuDomainSaveStatus(vm);
}
/* Finally, if no error until here, we can save config. */
if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
if (virDomainDefSave(vmdef, driver->xmlopt, cfg->configDir) < 0)
goto cleanup;
virDomainObjAssignDef(vm, &vmdef, false, NULL);
}
ret = 0;
cleanup:
if (dev != dev_copy)
virDomainDeviceDefFree(dev_copy);
return ret;
}
static int
qemuDomainDetachDeviceAliasLiveAndConfig(virQEMUDriver *driver,
virDomainObj *vm,
const char *alias,
unsigned int flags)
{
qemuDomainObjPrivate *priv = vm->privateData;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virDomainDef *def = NULL;
virDomainDef *persistentDef = NULL;
g_autoptr(virDomainDef) vmdef = NULL;
unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_SKIP_VALIDATE;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
cfg = virQEMUDriverGetConfig(driver);
if ((flags & VIR_DOMAIN_AFFECT_CONFIG) &&
!(flags & VIR_DOMAIN_AFFECT_LIVE))
parse_flags |= VIR_DOMAIN_DEF_PARSE_INACTIVE;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
return -1;
if (persistentDef) {
virDomainDeviceDef dev;
if (!(vmdef = virDomainObjCopyPersistentDef(vm, driver->xmlopt,
priv->qemuCaps)))
return -1;
if (virDomainDefFindDevice(vmdef, alias, &dev, true) < 0)
return -1;
if (qemuDomainDetachDeviceConfig(vmdef, &dev, priv->qemuCaps,
parse_flags, driver->xmlopt) < 0)
return -1;
}
if (def) {
virDomainDeviceDef dev;
int rc;
if (virDomainDefFindDevice(def, alias, &dev, true) < 0)
return -1;
if ((rc = qemuDomainDetachDeviceLive(vm, &dev, driver, true)) < 0)
return -1;
if (rc == 0 && qemuDomainUpdateDeviceList(vm, VIR_ASYNC_JOB_NONE) < 0)
return -1;
}
if (vmdef) {
if (virDomainDefSave(vmdef, driver->xmlopt, cfg->configDir) < 0)
return -1;
virDomainObjAssignDef(vm, &vmdef, false, NULL);
}
return 0;
}
static int
qemuDomainDetachDeviceFlags(virDomainPtr dom,
const char *xml,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
int ret = -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainDetachDeviceFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjUpdateModificationImpact(vm, &flags) < 0)
goto endjob;
if (qemuDomainDetachDeviceLiveAndConfig(driver, vm, xml, flags) < 0)
goto endjob;
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainDetachDeviceAlias(virDomainPtr dom,
const char *alias,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
int ret = -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainDetachDeviceAliasEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjUpdateModificationImpact(vm, &flags) < 0)
goto endjob;
if (qemuDomainDetachDeviceAliasLiveAndConfig(driver, vm, alias, flags) < 0)
goto endjob;
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int qemuDomainDetachDevice(virDomainPtr dom, const char *xml)
{
return qemuDomainDetachDeviceFlags(dom, xml,
VIR_DOMAIN_AFFECT_LIVE);
}
static int qemuDomainGetAutostart(virDomainPtr dom,
int *autostart)
{
virDomainObj *vm;
int ret = -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainGetAutostartEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
*autostart = vm->autostart;
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int qemuDomainSetAutostart(virDomainPtr dom,
int autostart)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
g_autofree char *configFile = NULL;
g_autofree char *autostartLink = NULL;
int ret = -1;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
cfg = virQEMUDriverGetConfig(driver);
if (virDomainSetAutostartEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cannot set autostart for transient domain"));
goto cleanup;
}
autostart = (autostart != 0);
if (vm->autostart != autostart) {
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (!(configFile = virDomainConfigFile(cfg->configDir, vm->def->name)))
goto endjob;
if (!(autostartLink = virDomainConfigFile(cfg->autostartDir,
vm->def->name)))
goto endjob;
if (autostart) {
if (g_mkdir_with_parents(cfg->autostartDir, 0777) < 0) {
virReportSystemError(errno,
_("cannot create autostart directory %s"),
cfg->autostartDir);
goto endjob;
}
if (symlink(configFile, autostartLink) < 0) {
virReportSystemError(errno,
_("Failed to create symlink '%s to '%s'"),
autostartLink, configFile);
goto endjob;
}
} else {
if (unlink(autostartLink) < 0 &&
errno != ENOENT &&
errno != ENOTDIR) {
virReportSystemError(errno,
_("Failed to delete symlink '%s'"),
autostartLink);
goto endjob;
}
}
vm->autostart = autostart;
endjob:
qemuDomainObjEndJob(vm);
}
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static char *qemuDomainGetSchedulerType(virDomainPtr dom,
int *nparams)
{
char *ret = NULL;
virDomainObj *vm = NULL;
qemuDomainObjPrivate *priv;
virQEMUDriver *driver = dom->conn->privateData;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
priv = vm->privateData;
if (virDomainGetSchedulerTypeEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!driver->privileged) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("CPU tuning is not available in session mode"));
goto cleanup;
}
/* Domain not running, thus no cgroups - return defaults */
if (!virDomainObjIsActive(vm)) {
if (nparams)
*nparams = 9;
ret = g_strdup("posix");
goto cleanup;
}
if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPU)) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cgroup CPU controller is not mounted"));
goto cleanup;
}
if (nparams) {
if (virCgroupSupportsCpuBW(priv->cgroup))
*nparams = 9;
else
*nparams = 1;
}
ret = g_strdup("posix");
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainSetBlkioParameters(virDomainPtr dom,
virTypedParameterPtr params,
int nparams,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
virDomainDef *def;
virDomainDef *persistentDef;
int ret = -1;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
qemuDomainObjPrivate *priv;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (virTypedParamsValidate(params, nparams,
VIR_DOMAIN_BLKIO_WEIGHT,
VIR_TYPED_PARAM_UINT,
VIR_DOMAIN_BLKIO_DEVICE_WEIGHT,
VIR_TYPED_PARAM_STRING,
VIR_DOMAIN_BLKIO_DEVICE_READ_IOPS,
VIR_TYPED_PARAM_STRING,
VIR_DOMAIN_BLKIO_DEVICE_WRITE_IOPS,
VIR_TYPED_PARAM_STRING,
VIR_DOMAIN_BLKIO_DEVICE_READ_BPS,
VIR_TYPED_PARAM_STRING,
VIR_DOMAIN_BLKIO_DEVICE_WRITE_BPS,
VIR_TYPED_PARAM_STRING,
NULL) < 0)
return -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
priv = vm->privateData;
cfg = virQEMUDriverGetConfig(driver);
if (virDomainSetBlkioParametersEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (!driver->privileged) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Block I/O tuning is not available in session mode"));
goto cleanup;
}
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
if (def) {
if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_BLKIO)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("blkio cgroup isn't mounted"));
goto endjob;
}
}
ret = 0;
if (def) {
ret = virDomainCgroupSetupDomainBlkioParameters(priv->cgroup, def,
params, nparams);
qemuDomainSaveStatus(vm);
}
if (ret < 0)
goto endjob;
if (persistentDef) {
ret = virDomainDriverSetupPersistentDefBlkioParams(persistentDef,
params,
nparams);
if (virDomainDefSave(persistentDef, driver->xmlopt, cfg->configDir) < 0)
ret = -1;
}
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetBlkioParameters(virDomainPtr dom,
virTypedParameterPtr params,
int *nparams,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
virDomainDef *def = NULL;
virDomainDef *persistentDef = NULL;
int maxparams = QEMU_NB_BLKIO_PARAM;
unsigned int val;
int ret = -1;
qemuDomainObjPrivate *priv;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG |
VIR_TYPED_PARAM_STRING_OKAY, -1);
/* We blindly return a string, and let libvirt.c and
* remote_driver.c do the filtering on behalf of older clients
* that can't parse it. */
flags &= ~VIR_TYPED_PARAM_STRING_OKAY;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
priv = vm->privateData;
if (virDomainGetBlkioParametersEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!driver->privileged) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Block I/O tuning is not available in session mode"));
goto cleanup;
}
if ((*nparams) == 0) {
/* Current number of blkio parameters supported by cgroups */
*nparams = QEMU_NB_BLKIO_PARAM;
ret = 0;
goto cleanup;
} else if (*nparams < maxparams) {
maxparams = *nparams;
}
*nparams = 0;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto cleanup;
if (def) {
if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_BLKIO)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("blkio cgroup isn't mounted"));
goto cleanup;
}
/* fill blkio weight here */
if (virCgroupGetBlkioWeight(priv->cgroup, &val) < 0)
goto cleanup;
if (virTypedParameterAssign(&(params[(*nparams)++]),
VIR_DOMAIN_BLKIO_WEIGHT,
VIR_TYPED_PARAM_UINT, val) < 0)
goto cleanup;
if (virDomainGetBlkioParametersAssignFromDef(def, params, nparams,
maxparams) < 0)
goto cleanup;
} else if (persistentDef) {
/* fill blkio weight here */
if (virTypedParameterAssign(&(params[(*nparams)++]),
VIR_DOMAIN_BLKIO_WEIGHT,
VIR_TYPED_PARAM_UINT,
persistentDef->blkio.weight) < 0)
goto cleanup;
if (virDomainGetBlkioParametersAssignFromDef(persistentDef, params,
nparams, maxparams) < 0)
goto cleanup;
}
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainSetMemoryParameters(virDomainPtr dom,
virTypedParameterPtr params,
int nparams,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainDef *def = NULL;
virDomainDef *persistentDef = NULL;
virDomainObj *vm = NULL;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
int ret = -1;
qemuDomainObjPrivate *priv;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (virTypedParamsValidate(params, nparams,
VIR_DOMAIN_MEMORY_HARD_LIMIT,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_MEMORY_SOFT_LIMIT,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_MEMORY_SWAP_HARD_LIMIT,
VIR_TYPED_PARAM_ULLONG,
NULL) < 0)
return -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
priv = vm->privateData;
cfg = virQEMUDriverGetConfig(driver);
if (virDomainSetMemoryParametersEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (!driver->privileged) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("Memory tuning is not available in session mode"));
goto cleanup;
}
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
/* QEMU and LXC implementation are identical */
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
if (def &&
!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_MEMORY)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cgroup memory controller is not mounted"));
goto endjob;
}
if (virDomainCgroupSetMemoryLimitParameters(priv->cgroup, vm, def,
persistentDef,
params, nparams) < 0)
goto endjob;
if (def)
qemuDomainSaveStatus(vm);
if (persistentDef &&
virDomainDefSave(persistentDef, driver->xmlopt, cfg->configDir) < 0)
goto endjob;
/* QEMU and LXC implementations are identical */
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
#define QEMU_ASSIGN_MEM_PARAM(index, name, value) \
if (index < *nparams && \
virTypedParameterAssign(&params[index], name, VIR_TYPED_PARAM_ULLONG, \
value) < 0) \
goto cleanup
static int
qemuDomainGetMemoryParameters(virDomainPtr dom,
virTypedParameterPtr params,
int *nparams,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
virDomainDef *persistentDef = NULL;
int ret = -1;
qemuDomainObjPrivate *priv;
unsigned long long swap_hard_limit, mem_hard_limit, mem_soft_limit;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG |
VIR_TYPED_PARAM_STRING_OKAY, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
priv = vm->privateData;
if (virDomainGetMemoryParametersEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!driver->privileged) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("Memory tuning is not available in session mode"));
goto cleanup;
}
if (virDomainObjGetDefs(vm, flags, NULL, &persistentDef) < 0)
goto cleanup;
if ((*nparams) == 0) {
/* Current number of memory parameters supported by cgroups */
*nparams = QEMU_NB_MEM_PARAM;
ret = 0;
goto cleanup;
}
if (persistentDef) {
mem_hard_limit = persistentDef->mem.hard_limit;
mem_soft_limit = persistentDef->mem.soft_limit;
swap_hard_limit = persistentDef->mem.swap_hard_limit;
} else {
if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_MEMORY)) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cgroup memory controller is not mounted"));
goto cleanup;
}
if (virCgroupGetMemoryHardLimit(priv->cgroup, &mem_hard_limit) < 0)
goto cleanup;
if (virCgroupGetMemorySoftLimit(priv->cgroup, &mem_soft_limit) < 0)
goto cleanup;
if (virCgroupGetMemSwapHardLimit(priv->cgroup, &swap_hard_limit) < 0) {
if (!virLastErrorIsSystemErrno(ENOENT) &&
!virLastErrorIsSystemErrno(EOPNOTSUPP))
goto cleanup;
swap_hard_limit = VIR_DOMAIN_MEMORY_PARAM_UNLIMITED;
}
}
QEMU_ASSIGN_MEM_PARAM(0, VIR_DOMAIN_MEMORY_HARD_LIMIT, mem_hard_limit);
QEMU_ASSIGN_MEM_PARAM(1, VIR_DOMAIN_MEMORY_SOFT_LIMIT, mem_soft_limit);
QEMU_ASSIGN_MEM_PARAM(2, VIR_DOMAIN_MEMORY_SWAP_HARD_LIMIT, swap_hard_limit);
if (QEMU_NB_MEM_PARAM < *nparams)
*nparams = QEMU_NB_MEM_PARAM;
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
#undef QEMU_ASSIGN_MEM_PARAM
static int
qemuDomainSetNumaParamsLive(virDomainObj *vm,
virBitmap *nodeset)
{
g_autoptr(virCgroup) cgroup_thread = NULL;
qemuDomainObjPrivate *priv = vm->privateData;
g_autofree char *nodeset_str = NULL;
virDomainNumatuneMemMode mode;
size_t i = 0;
if (virDomainNumatuneGetMode(vm->def->numa, -1, &mode) == 0 &&
mode != VIR_DOMAIN_NUMATUNE_MEM_RESTRICTIVE) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("change of nodeset for running domain requires restrictive numa mode"));
return -1;
}
if (!virNumaNodesetIsAvailable(nodeset))
return -1;
/* Ensure the cpuset string is formatted before passing to cgroup */
if (!(nodeset_str = virBitmapFormat(nodeset)))
return -1;
if (virCgroupNewThread(priv->cgroup, VIR_CGROUP_THREAD_EMULATOR, 0,
false, &cgroup_thread) < 0 ||
virCgroupSetCpusetMems(cgroup_thread, nodeset_str) < 0)
return -1;
for (i = 0; i < virDomainDefGetVcpusMax(vm->def); i++) {
g_autoptr(virCgroup) cgroup_vcpu = NULL;
virDomainVcpuDef *vcpu = virDomainDefGetVcpu(vm->def, i);
if (!vcpu->online)
continue;
if (virCgroupNewThread(priv->cgroup, VIR_CGROUP_THREAD_VCPU, i,
false, &cgroup_vcpu) < 0 ||
virCgroupSetCpusetMems(cgroup_vcpu, nodeset_str) < 0)
return -1;
}
for (i = 0; i < vm->def->niothreadids; i++) {
g_autoptr(virCgroup) cgroup_iothread = NULL;
if (virCgroupNewThread(priv->cgroup, VIR_CGROUP_THREAD_IOTHREAD,
vm->def->iothreadids[i]->iothread_id,
false, &cgroup_iothread) < 0 ||
virCgroupSetCpusetMems(cgroup_iothread, nodeset_str) < 0)
return -1;
}
return 0;
}
static int
qemuDomainSetNumaParameters(virDomainPtr dom,
virTypedParameterPtr params,
int nparams,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
size_t i;
virDomainDef *def;
virDomainDef *persistentDef;
virDomainObj *vm = NULL;
int ret = -1;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
qemuDomainObjPrivate *priv;
g_autoptr(virBitmap) nodeset = NULL;
virDomainNumatuneMemMode config_mode;
int mode = -1;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (virTypedParamsValidate(params, nparams,
VIR_DOMAIN_NUMA_MODE,
VIR_TYPED_PARAM_INT,
VIR_DOMAIN_NUMA_NODESET,
VIR_TYPED_PARAM_STRING,
NULL) < 0)
return -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
priv = vm->privateData;
cfg = virQEMUDriverGetConfig(driver);
if (virDomainSetNumaParametersEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
for (i = 0; i < nparams; i++) {
virTypedParameterPtr param = &params[i];
if (STREQ(param->field, VIR_DOMAIN_NUMA_MODE)) {
mode = param->value.i;
if (mode < 0 || mode >= VIR_DOMAIN_NUMATUNE_MEM_LAST) {
virReportError(VIR_ERR_INVALID_ARG,
_("unsupported numatune mode: '%d'"), mode);
goto cleanup;
}
} else if (STREQ(param->field, VIR_DOMAIN_NUMA_NODESET)) {
if (virBitmapParse(param->value.s, &nodeset,
VIR_DOMAIN_CPUMASK_LEN) < 0)
goto cleanup;
if (virBitmapIsAllClear(nodeset)) {
virReportError(VIR_ERR_OPERATION_INVALID,
_("Invalid nodeset of 'numatune': %s"),
param->value.s);
goto cleanup;
}
}
}
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
if (def) {
if (!driver->privileged) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("NUMA tuning is not available in session mode"));
goto endjob;
}
if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPUSET)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cgroup cpuset controller is not mounted"));
goto endjob;
}
if (mode != -1 &&
virDomainNumatuneGetMode(def->numa, -1, &config_mode) == 0 &&
config_mode != mode) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("can't change numatune mode for running domain"));
goto endjob;
}
if (mode == VIR_DOMAIN_NUMATUNE_MEM_STRICT) {
virBitmap *config_nodeset = NULL;
if (virDomainNumatuneMaybeGetNodeset(def->numa, priv->autoNodeset,
&config_nodeset, -1) < 0)
goto endjob;
if (!virBitmapEqual(nodeset, config_nodeset)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("can't change nodeset for strict mode for running domain"));
goto endjob;
}
} else {
if (nodeset &&
qemuDomainSetNumaParamsLive(vm, nodeset) < 0)
goto endjob;
if (virDomainNumatuneSet(def->numa,
def->placement_mode ==
VIR_DOMAIN_CPU_PLACEMENT_MODE_STATIC,
-1, mode, nodeset) < 0)
goto endjob;
qemuDomainSaveStatus(vm);
}
}
if (persistentDef) {
if (virDomainNumatuneSet(persistentDef->numa,
persistentDef->placement_mode ==
VIR_DOMAIN_CPU_PLACEMENT_MODE_STATIC,
-1, mode, nodeset) < 0)
goto endjob;
if (virDomainDefSave(persistentDef, driver->xmlopt, cfg->configDir) < 0)
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetNumaParameters(virDomainPtr dom,
virTypedParameterPtr params,
int *nparams,
unsigned int flags)
{
size_t i;
virDomainObj *vm = NULL;
virDomainNumatuneMemMode tmpmode = VIR_DOMAIN_NUMATUNE_MEM_STRICT;
qemuDomainObjPrivate *priv;
g_autofree char *nodeset = NULL;
int ret = -1;
virDomainDef *def = NULL;
bool live = false;
virBitmap *autoNodeset = NULL;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG |
VIR_TYPED_PARAM_STRING_OKAY, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
priv = vm->privateData;
if (virDomainGetNumaParametersEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!(def = virDomainObjGetOneDefState(vm, flags, &live)))
goto cleanup;
if (live)
autoNodeset = priv->autoNodeset;
if ((*nparams) == 0) {
*nparams = QEMU_NB_NUMA_PARAM;
ret = 0;
goto cleanup;
}
for (i = 0; i < QEMU_NB_NUMA_PARAM && i < *nparams; i++) {
virMemoryParameterPtr param = &params[i];
switch (i) {
case 0: /* fill numa mode here */
ignore_value(virDomainNumatuneGetMode(def->numa, -1, &tmpmode));
if (virTypedParameterAssign(param, VIR_DOMAIN_NUMA_MODE,
VIR_TYPED_PARAM_INT, tmpmode) < 0)
goto cleanup;
break;
case 1: /* fill numa nodeset here */
nodeset = virDomainNumatuneFormatNodeset(def->numa, autoNodeset, -1);
if (!nodeset ||
virTypedParameterAssign(param, VIR_DOMAIN_NUMA_NODESET,
VIR_TYPED_PARAM_STRING, nodeset) < 0)
goto cleanup;
nodeset = NULL;
break;
default:
break;
/* should not hit here */
}
}
if (*nparams > QEMU_NB_NUMA_PARAM)
*nparams = QEMU_NB_NUMA_PARAM;
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuSetGlobalBWLive(virCgroup *cgroup, unsigned long long period,
long long quota)
{
if (virDomainCgroupSetupVcpuBW(cgroup, period, quota) < 0)
return -1;
return 0;
}
static int
qemuDomainSetPerfEvents(virDomainPtr dom,
virTypedParameterPtr params,
int nparams,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
size_t i;
virDomainObj *vm = NULL;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
qemuDomainObjPrivate *priv;
virDomainDef *def;
virDomainDef *persistentDef;
int ret = -1;
virPerfEventType type;
bool enabled;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (virTypedParamsValidate(params, nparams,
VIR_PERF_PARAM_CMT, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_MBMT, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_MBML, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_CPU_CYCLES, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_INSTRUCTIONS, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_CACHE_REFERENCES, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_CACHE_MISSES, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_BRANCH_INSTRUCTIONS, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_BRANCH_MISSES, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_BUS_CYCLES, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_STALLED_CYCLES_FRONTEND, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_STALLED_CYCLES_BACKEND, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_REF_CPU_CYCLES, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_CPU_CLOCK, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_TASK_CLOCK, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_PAGE_FAULTS, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_CONTEXT_SWITCHES, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_CPU_MIGRATIONS, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_PAGE_FAULTS_MIN, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_PAGE_FAULTS_MAJ, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_ALIGNMENT_FAULTS, VIR_TYPED_PARAM_BOOLEAN,
VIR_PERF_PARAM_EMULATION_FAULTS, VIR_TYPED_PARAM_BOOLEAN,
NULL) < 0)
return -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
cfg = virQEMUDriverGetConfig(driver);
priv = vm->privateData;
if (virDomainSetPerfEventsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
if (def) {
for (i = 0; i < nparams; i++) {
virTypedParameterPtr param = &params[i];
enabled = param->value.b;
type = virPerfEventTypeFromString(param->field);
if (!enabled && virPerfEventDisable(priv->perf, type) < 0)
goto endjob;
if (enabled && virPerfEventEnable(priv->perf, type, vm->pid) < 0)
goto endjob;
def->perf.events[type] = enabled ?
VIR_TRISTATE_BOOL_YES : VIR_TRISTATE_BOOL_NO;
}
qemuDomainSaveStatus(vm);
}
if (persistentDef) {
for (i = 0; i < nparams; i++) {
virTypedParameterPtr param = &params[i];
enabled = param->value.b;
type = virPerfEventTypeFromString(param->field);
persistentDef->perf.events[type] = enabled ?
VIR_TRISTATE_BOOL_YES : VIR_TRISTATE_BOOL_NO;
}
if (virDomainDefSave(persistentDef, driver->xmlopt, cfg->configDir) < 0)
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetPerfEvents(virDomainPtr dom,
virTypedParameterPtr *params,
int *nparams,
unsigned int flags)
{
virDomainObj *vm = NULL;
qemuDomainObjPrivate *priv;
virDomainDef *def;
virTypedParameterPtr par = NULL;
int maxpar = 0;
int npar = 0;
size_t i;
int ret = -1;
bool live = false;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG |
VIR_TYPED_PARAM_STRING_OKAY, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainGetPerfEventsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
goto cleanup;
if (!(def = virDomainObjGetOneDefState(vm, flags, &live)))
goto endjob;
priv = vm->privateData;
for (i = 0; i < VIR_PERF_EVENT_LAST; i++) {
bool perf_enabled;
if ((flags & VIR_DOMAIN_AFFECT_CONFIG) || !live)
perf_enabled = def->perf.events[i] == VIR_TRISTATE_BOOL_YES;
else
perf_enabled = virPerfEventIsEnabled(priv->perf, i);
if (virTypedParamsAddBoolean(&par, &npar, &maxpar,
virPerfEventTypeToString(i),
perf_enabled) < 0)
goto endjob;
}
*nparams = npar;
*params = g_steal_pointer(&par);
npar = 0;
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
virTypedParamsFree(par, npar);
return ret;
}
static int
qemuSetVcpusBWLive(virDomainObj *vm, virCgroup *cgroup,
unsigned long long period, long long quota)
{
size_t i;
if (!qemuDomainHasVcpuPids(vm))
return 0;
for (i = 0; i < virDomainDefGetVcpusMax(vm->def); i++) {
g_autoptr(virCgroup) cgroup_vcpu = NULL;
virDomainVcpuDef *vcpu = virDomainDefGetVcpu(vm->def, i);
if (!vcpu->online)
continue;
if (virCgroupNewThread(cgroup, VIR_CGROUP_THREAD_VCPU, i,
false, &cgroup_vcpu) < 0)
return -1;
if (virDomainCgroupSetupVcpuBW(cgroup_vcpu, period, quota) < 0)
return -1;
}
return 0;
}
static int
qemuSetEmulatorBandwidthLive(virCgroup *cgroup,
unsigned long long period,
long long quota)
{
g_autoptr(virCgroup) cgroup_emulator = NULL;
if (virCgroupNewThread(cgroup, VIR_CGROUP_THREAD_EMULATOR, 0,
false, &cgroup_emulator) < 0)
return -1;
if (virDomainCgroupSetupVcpuBW(cgroup_emulator, period, quota) < 0)
return -1;
return 0;
}
static int
qemuSetIOThreadsBWLive(virDomainObj *vm, virCgroup *cgroup,
unsigned long long period, long long quota)
{
size_t i;
if (!vm->def->niothreadids)
return 0;
for (i = 0; i < vm->def->niothreadids; i++) {
g_autoptr(virCgroup) cgroup_iothread = NULL;
if (virCgroupNewThread(cgroup, VIR_CGROUP_THREAD_IOTHREAD,
vm->def->iothreadids[i]->iothread_id,
false, &cgroup_iothread) < 0)
return -1;
if (virDomainCgroupSetupVcpuBW(cgroup_iothread, period, quota) < 0)
return -1;
}
return 0;
}
#define SCHED_RANGE_CHECK(VAR, NAME, MIN, MAX) \
if (((VAR) > 0 && (VAR) < (MIN)) || (VAR) > (MAX)) { \
virReportError(VIR_ERR_INVALID_ARG, \
_("value of '%s' is out of range [%lld, %lld]"), \
NAME, MIN, MAX); \
rc = -1; \
goto endjob; \
}
static int
qemuDomainSetSchedulerParametersFlags(virDomainPtr dom,
virTypedParameterPtr params,
int nparams,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
size_t i;
virDomainObj *vm = NULL;
virDomainDef *def = NULL;
virDomainDef *persistentDef = NULL;
g_autoptr(virDomainDef) persistentDefCopy = NULL;
unsigned long long value_ul;
long long value_l;
int ret = -1;
int rc;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
qemuDomainObjPrivate *priv;
virObjectEvent *event = NULL;
virTypedParameterPtr eventParams = NULL;
int eventNparams = 0;
int eventMaxNparams = 0;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (virTypedParamsValidate(params, nparams,
VIR_DOMAIN_SCHEDULER_CPU_SHARES,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_SCHEDULER_VCPU_PERIOD,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_SCHEDULER_VCPU_QUOTA,
VIR_TYPED_PARAM_LLONG,
VIR_DOMAIN_SCHEDULER_GLOBAL_PERIOD,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_SCHEDULER_GLOBAL_QUOTA,
VIR_TYPED_PARAM_LLONG,
VIR_DOMAIN_SCHEDULER_EMULATOR_PERIOD,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_SCHEDULER_EMULATOR_QUOTA,
VIR_TYPED_PARAM_LLONG,
VIR_DOMAIN_SCHEDULER_IOTHREAD_PERIOD,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_SCHEDULER_IOTHREAD_QUOTA,
VIR_TYPED_PARAM_LLONG,
NULL) < 0)
return -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
priv = vm->privateData;
cfg = virQEMUDriverGetConfig(driver);
if (virDomainSetSchedulerParametersFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (!driver->privileged) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("CPU tuning is not available in session mode"));
goto cleanup;
}
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
if (persistentDef) {
/* Make a copy for updated domain. */
if (!(persistentDefCopy = virDomainObjCopyPersistentDef(vm,
driver->xmlopt,
priv->qemuCaps)))
goto endjob;
}
if (def &&
!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPU)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cgroup CPU controller is not mounted"));
goto endjob;
}
for (i = 0; i < nparams; i++) {
virTypedParameterPtr param = &params[i];
value_ul = param->value.ul;
value_l = param->value.l;
if (STREQ(param->field, VIR_DOMAIN_SCHEDULER_CPU_SHARES)) {
if (def) {
if (virCgroupSetCpuShares(priv->cgroup, value_ul) < 0)
goto endjob;
def->cputune.shares = value_ul;
def->cputune.sharesSpecified = true;
if (virTypedParamsAddULLong(&eventParams, &eventNparams,
&eventMaxNparams,
VIR_DOMAIN_TUNABLE_CPU_CPU_SHARES,
value_ul) < 0)
goto endjob;
}
if (persistentDef) {
persistentDefCopy->cputune.shares = value_ul;
persistentDefCopy->cputune.sharesSpecified = true;
}
} else if (STREQ(param->field, VIR_DOMAIN_SCHEDULER_VCPU_PERIOD)) {
SCHED_RANGE_CHECK(value_ul, VIR_DOMAIN_SCHEDULER_VCPU_PERIOD,
VIR_CGROUP_CPU_PERIOD_MIN, VIR_CGROUP_CPU_PERIOD_MAX);
if (def && value_ul) {
if ((rc = qemuSetVcpusBWLive(vm, priv->cgroup, value_ul, 0)))
goto endjob;
def->cputune.period = value_ul;
if (virTypedParamsAddULLong(&eventParams, &eventNparams,
&eventMaxNparams,
VIR_DOMAIN_TUNABLE_CPU_VCPU_PERIOD,
value_ul) < 0)
goto endjob;
}
if (persistentDef)
persistentDefCopy->cputune.period = value_ul;
} else if (STREQ(param->field, VIR_DOMAIN_SCHEDULER_VCPU_QUOTA)) {
SCHED_RANGE_CHECK(value_l, VIR_DOMAIN_SCHEDULER_VCPU_QUOTA,
VIR_CGROUP_CPU_QUOTA_MIN, VIR_CGROUP_CPU_QUOTA_MAX);
if (def && value_l) {
if ((rc = qemuSetVcpusBWLive(vm, priv->cgroup, 0, value_l)))
goto endjob;
def->cputune.quota = value_l;
if (virTypedParamsAddLLong(&eventParams, &eventNparams,
&eventMaxNparams,
VIR_DOMAIN_TUNABLE_CPU_VCPU_QUOTA,
value_l) < 0)
goto endjob;
}
if (persistentDef)
persistentDefCopy->cputune.quota = value_l;
} else if (STREQ(param->field, VIR_DOMAIN_SCHEDULER_GLOBAL_PERIOD)) {
SCHED_RANGE_CHECK(value_ul, VIR_DOMAIN_SCHEDULER_GLOBAL_PERIOD,
VIR_CGROUP_CPU_PERIOD_MIN, VIR_CGROUP_CPU_PERIOD_MAX);
if (def && value_ul) {
if ((rc = qemuSetGlobalBWLive(priv->cgroup, value_ul, 0)))
goto endjob;
def->cputune.global_period = value_ul;
if (virTypedParamsAddULLong(&eventParams, &eventNparams,
&eventMaxNparams,
VIR_DOMAIN_TUNABLE_CPU_GLOBAL_PERIOD,
value_ul) < 0)
goto endjob;
}
if (persistentDef)
persistentDefCopy->cputune.global_period = value_ul;
} else if (STREQ(param->field, VIR_DOMAIN_SCHEDULER_GLOBAL_QUOTA)) {
SCHED_RANGE_CHECK(value_l, VIR_DOMAIN_SCHEDULER_GLOBAL_QUOTA,
VIR_CGROUP_CPU_QUOTA_MIN, VIR_CGROUP_CPU_QUOTA_MAX);
if (def && value_l) {
if ((rc = qemuSetGlobalBWLive(priv->cgroup, 0, value_l)))
goto endjob;
def->cputune.global_quota = value_l;
if (virTypedParamsAddLLong(&eventParams, &eventNparams,
&eventMaxNparams,
VIR_DOMAIN_TUNABLE_CPU_GLOBAL_QUOTA,
value_l) < 0)
goto endjob;
}
if (persistentDef)
persistentDefCopy->cputune.global_quota = value_l;
} else if (STREQ(param->field, VIR_DOMAIN_SCHEDULER_EMULATOR_PERIOD)) {
SCHED_RANGE_CHECK(value_ul, VIR_DOMAIN_SCHEDULER_EMULATOR_PERIOD,
VIR_CGROUP_CPU_PERIOD_MIN, VIR_CGROUP_CPU_PERIOD_MAX);
if (def && value_ul) {
if ((rc = qemuSetEmulatorBandwidthLive(priv->cgroup,
value_ul, 0)))
goto endjob;
def->cputune.emulator_period = value_ul;
if (virTypedParamsAddULLong(&eventParams, &eventNparams,
&eventMaxNparams,
VIR_DOMAIN_TUNABLE_CPU_EMULATOR_PERIOD,
value_ul) < 0)
goto endjob;
}
if (persistentDef)
persistentDefCopy->cputune.emulator_period = value_ul;
} else if (STREQ(param->field, VIR_DOMAIN_SCHEDULER_EMULATOR_QUOTA)) {
SCHED_RANGE_CHECK(value_l, VIR_DOMAIN_SCHEDULER_EMULATOR_QUOTA,
VIR_CGROUP_CPU_QUOTA_MIN, VIR_CGROUP_CPU_QUOTA_MAX);
if (def && value_l) {
if ((rc = qemuSetEmulatorBandwidthLive(priv->cgroup,
0, value_l)))
goto endjob;
def->cputune.emulator_quota = value_l;
if (virTypedParamsAddLLong(&eventParams, &eventNparams,
&eventMaxNparams,
VIR_DOMAIN_TUNABLE_CPU_EMULATOR_QUOTA,
value_l) < 0)
goto endjob;
}
if (persistentDef)
persistentDefCopy->cputune.emulator_quota = value_l;
} else if (STREQ(param->field, VIR_DOMAIN_SCHEDULER_IOTHREAD_PERIOD)) {
SCHED_RANGE_CHECK(value_ul, VIR_DOMAIN_SCHEDULER_IOTHREAD_PERIOD,
VIR_CGROUP_CPU_PERIOD_MIN, VIR_CGROUP_CPU_PERIOD_MAX);
if (def && value_ul) {
if ((rc = qemuSetIOThreadsBWLive(vm, priv->cgroup, value_ul, 0)))
goto endjob;
def->cputune.iothread_period = value_ul;
if (virTypedParamsAddULLong(&eventParams, &eventNparams,
&eventMaxNparams,
VIR_DOMAIN_TUNABLE_CPU_IOTHREAD_PERIOD,
value_ul) < 0)
goto endjob;
}
if (persistentDef)
persistentDefCopy->cputune.iothread_period = value_ul;
} else if (STREQ(param->field, VIR_DOMAIN_SCHEDULER_IOTHREAD_QUOTA)) {
SCHED_RANGE_CHECK(value_l, VIR_DOMAIN_SCHEDULER_IOTHREAD_QUOTA,
VIR_CGROUP_CPU_QUOTA_MIN, VIR_CGROUP_CPU_QUOTA_MAX);
if (def && value_l) {
if ((rc = qemuSetIOThreadsBWLive(vm, priv->cgroup, 0, value_l)))
goto endjob;
def->cputune.iothread_quota = value_l;
if (virTypedParamsAddLLong(&eventParams, &eventNparams,
&eventMaxNparams,
VIR_DOMAIN_TUNABLE_CPU_IOTHREAD_QUOTA,
value_l) < 0)
goto endjob;
}
if (persistentDef)
persistentDefCopy->cputune.iothread_quota = value_l;
}
}
qemuDomainSaveStatus(vm);
if (eventNparams) {
event = virDomainEventTunableNewFromDom(dom, eventParams, eventNparams);
eventNparams = 0;
virObjectEventStateQueue(driver->domainEventState, event);
}
if (persistentDef) {
rc = virDomainDefSave(persistentDefCopy, driver->xmlopt,
cfg->configDir);
if (rc < 0)
goto endjob;
virDomainObjAssignDef(vm, &persistentDefCopy, false, NULL);
}
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
if (eventNparams)
virTypedParamsFree(eventParams, eventNparams);
return ret;
}
#undef SCHED_RANGE_CHECK
static int
qemuDomainSetSchedulerParameters(virDomainPtr dom,
virTypedParameterPtr params,
int nparams)
{
return qemuDomainSetSchedulerParametersFlags(dom,
params,
nparams,
VIR_DOMAIN_AFFECT_CURRENT);
}
static int
qemuGetVcpuBWLive(virCgroup *cgroup, unsigned long long *period,
long long *quota)
{
return virCgroupGetCpuPeriodQuota(cgroup, period, quota);
}
static int
qemuGetVcpusBWLive(virDomainObj *vm,
unsigned long long *period, long long *quota)
{
g_autoptr(virCgroup) cgroup_vcpu = NULL;
qemuDomainObjPrivate *priv = NULL;
priv = vm->privateData;
if (!qemuDomainHasVcpuPids(vm)) {
/* We do not create sub dir for each vcpu */
if (qemuGetVcpuBWLive(priv->cgroup, period, quota) < 0)
return -1;
if (*quota > 0)
*quota /= virDomainDefGetVcpus(vm->def);
return 0;
}
/* get period and quota for vcpu0 */
if (virCgroupNewThread(priv->cgroup, VIR_CGROUP_THREAD_VCPU, 0,
false, &cgroup_vcpu) < 0)
return -1;
if (qemuGetVcpuBWLive(cgroup_vcpu, period, quota) < 0)
return -1;
return 0;
}
static int
qemuGetEmulatorBandwidthLive(virCgroup *cgroup,
unsigned long long *period,
long long *quota)
{
g_autoptr(virCgroup) cgroup_emulator = NULL;
/* get period and quota for emulator */
if (virCgroupNewThread(cgroup, VIR_CGROUP_THREAD_EMULATOR, 0,
false, &cgroup_emulator) < 0)
return -1;
if (qemuGetVcpuBWLive(cgroup_emulator, period, quota) < 0)
return -1;
return 0;
}
static int
qemuGetIOThreadsBWLive(virDomainObj *vm,
unsigned long long *period, long long *quota)
{
g_autoptr(virCgroup) cgroup_iothread = NULL;
qemuDomainObjPrivate *priv = NULL;
priv = vm->privateData;
if (!vm->def->niothreadids) {
/* We do not create sub dir for each iothread */
if (qemuGetVcpuBWLive(priv->cgroup, period, quota) < 0)
return -1;
return 0;
}
/* get period and quota for the "first" IOThread */
if (virCgroupNewThread(priv->cgroup, VIR_CGROUP_THREAD_IOTHREAD,
vm->def->iothreadids[0]->iothread_id,
false, &cgroup_iothread) < 0)
return -1;
if (qemuGetVcpuBWLive(cgroup_iothread, period, quota) < 0)
return -1;
return 0;
}
static int
qemuGetGlobalBWLive(virCgroup *cgroup, unsigned long long *period,
long long *quota)
{
if (qemuGetVcpuBWLive(cgroup, period, quota) < 0)
return -1;
return 0;
}
static int
qemuDomainGetSchedulerParametersFlags(virDomainPtr dom,
virTypedParameterPtr params,
int *nparams,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
virDomainCputune data = {0};
int ret = -1;
bool cpu_bw_status = true;
virDomainDef *persistentDef;
virDomainDef *def;
qemuDomainObjPrivate *priv;
int maxparams = *nparams;
*nparams = 0;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG |
VIR_TYPED_PARAM_STRING_OKAY, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
priv = vm->privateData;
if (virDomainGetSchedulerParametersFlagsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!driver->privileged) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("CPU tuning is not available in session mode"));
goto cleanup;
}
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto cleanup;
if (persistentDef) {
data = persistentDef->cputune;
} else if (def) {
if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPU)) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cgroup CPU controller is not mounted"));
goto cleanup;
}
if (virCgroupGetCpuShares(priv->cgroup, &data.shares) < 0)
goto cleanup;
if (virCgroupSupportsCpuBW(priv->cgroup)) {
if (maxparams > 1 &&
qemuGetVcpusBWLive(vm, &data.period, &data.quota) < 0)
goto cleanup;
if (maxparams > 3 &&
qemuGetEmulatorBandwidthLive(priv->cgroup, &data.emulator_period,
&data.emulator_quota) < 0)
goto cleanup;
if (maxparams > 5 &&
qemuGetGlobalBWLive(priv->cgroup, &data.global_period,
&data.global_quota) < 0)
goto cleanup;
if (maxparams > 7 &&
qemuGetIOThreadsBWLive(vm, &data.iothread_period,
&data.iothread_quota) < 0)
goto cleanup;
} else {
cpu_bw_status = false;
}
}
#define QEMU_SCHED_ASSIGN(param, name, type) \
if (*nparams < maxparams && \
virTypedParameterAssign(&(params[(*nparams)++]), \
VIR_DOMAIN_SCHEDULER_ ## name, \
VIR_TYPED_PARAM_ ## type, \
data.param) < 0) \
goto cleanup
QEMU_SCHED_ASSIGN(shares, CPU_SHARES, ULLONG);
if (cpu_bw_status) {
QEMU_SCHED_ASSIGN(period, VCPU_PERIOD, ULLONG);
QEMU_SCHED_ASSIGN(quota, VCPU_QUOTA, LLONG);
QEMU_SCHED_ASSIGN(emulator_period, EMULATOR_PERIOD, ULLONG);
QEMU_SCHED_ASSIGN(emulator_quota, EMULATOR_QUOTA, LLONG);
QEMU_SCHED_ASSIGN(global_period, GLOBAL_PERIOD, ULLONG);
QEMU_SCHED_ASSIGN(global_quota, GLOBAL_QUOTA, LLONG);
QEMU_SCHED_ASSIGN(iothread_period, IOTHREAD_PERIOD, ULLONG);
QEMU_SCHED_ASSIGN(iothread_quota, IOTHREAD_QUOTA, LLONG);
}
#undef QEMU_SCHED_ASSIGN
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetSchedulerParameters(virDomainPtr dom,
virTypedParameterPtr params,
int *nparams)
{
return qemuDomainGetSchedulerParametersFlags(dom, params, nparams,
VIR_DOMAIN_AFFECT_CURRENT);
}
/**
* Resize a block device while a guest is running. Resize to a lower size
* is supported, but should be used with extreme caution. Note that it
* only supports to resize image files, it can't resize block devices
* like LVM volumes.
*/
static int
qemuDomainBlockResize(virDomainPtr dom,
const char *path,
unsigned long long size,
unsigned int flags)
{
virDomainObj *vm;
qemuDomainObjPrivate *priv;
int ret = -1;
g_autofree char *device = NULL;
const char *nodename = NULL;
virDomainDiskDef *disk = NULL;
virCheckFlags(VIR_DOMAIN_BLOCK_RESIZE_BYTES, -1);
/* We prefer operating on bytes. */
if ((flags & VIR_DOMAIN_BLOCK_RESIZE_BYTES) == 0) {
if (size > ULLONG_MAX / 1024) {
virReportError(VIR_ERR_OVERFLOW,
_("size must be less than %llu"),
ULLONG_MAX / 1024);
return -1;
}
size *= 1024;
}
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
priv = vm->privateData;
if (virDomainBlockResizeEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!(disk = virDomainDiskByName(vm->def, path, false))) {
virReportError(VIR_ERR_INVALID_ARG,
_("disk '%s' was not found in the domain config"), path);
goto endjob;
}
if (virStorageSourceGetActualType(disk->src) == VIR_STORAGE_TYPE_VHOST_USER) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("block resize is not supported for vhostuser disk"));
goto endjob;
}
/* qcow2 and qed must be sized on 512 byte blocks/sectors,
* so adjust size if necessary to round up.
*/
if (disk->src->format == VIR_STORAGE_FILE_QCOW2 ||
disk->src->format == VIR_STORAGE_FILE_QED)
size = VIR_ROUND_UP(size, 512);
if (virStorageSourceIsEmpty(disk->src) || disk->src->readonly) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("can't resize empty or readonly disk '%s'"),
disk->dst);
goto endjob;
}
if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV) &&
!qemuDiskBusIsSD(disk->bus)) {
nodename = disk->src->nodeformat;
} else {
if (!(device = qemuAliasDiskDriveFromDisk(disk)))
goto endjob;
}
qemuDomainObjEnterMonitor(vm);
if (qemuMonitorBlockResize(priv->mon, device, nodename, size) < 0) {
qemuDomainObjExitMonitor(vm);
goto endjob;
}
qemuDomainObjExitMonitor(vm);
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static void
qemuDomainBlockStatsGatherTotals(qemuBlockStats *data,
qemuBlockStats *total)
{
total->wr_bytes += data->wr_bytes;
total->wr_req += data->wr_req;
total->rd_bytes += data->rd_bytes;
total->rd_req += data->rd_req;
total->flush_req += data->flush_req;
total->wr_total_times += data->wr_total_times;
total->rd_total_times += data->rd_total_times;
total->flush_total_times += data->flush_total_times;
}
/**
* qemuDomainBlocksStatsGather:
* @driver: driver object
* @vm: domain object
* @path: to gather the statistics for
* @capacity: refresh capacity of the backing image
* @retstats: returns pointer to structure holding the stats
*
* Gathers the block statistics for use in qemuDomainBlockStats* APIs.
*
* Returns -1 on error; number of filled block statistics on success.
*/
static int
qemuDomainBlocksStatsGather(virDomainObj *vm,
const char *path,
bool capacity,
qemuBlockStats **retstats)
{
qemuDomainObjPrivate *priv = vm->privateData;
virDomainDiskDef *disk = NULL;
g_autoptr(GHashTable) blockstats = NULL;
qemuBlockStats *stats;
size_t i;
int nstats;
int rc = 0;
const char *entryname = NULL;
if (*path) {
if (!(disk = virDomainDiskByName(vm->def, path, false))) {
virReportError(VIR_ERR_INVALID_ARG, _("invalid path: %s"), path);
return -1;
}
if (virStorageSourceGetActualType(disk->src) == VIR_STORAGE_TYPE_VHOST_USER) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("block stats are not supported for vhostuser disk"));
return -1;
}
if (QEMU_DOMAIN_DISK_PRIVATE(disk)->qomName)
entryname = QEMU_DOMAIN_DISK_PRIVATE(disk)->qomName;
else
entryname = disk->info.alias;
if (!entryname) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing disk device alias name for %s"), disk->dst);
return -1;
}
}
qemuDomainObjEnterMonitor(vm);
nstats = qemuMonitorGetAllBlockStatsInfo(priv->mon, &blockstats);
if (capacity && nstats >= 0)
rc = qemuMonitorBlockStatsUpdateCapacityBlockdev(priv->mon, blockstats);
qemuDomainObjExitMonitor(vm);
if (nstats < 0 || rc < 0)
return -1;
*retstats = g_new0(qemuBlockStats, 1);
if (entryname) {
qemuBlockStats *capstats;
if (!(stats = virHashLookup(blockstats, entryname))) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot find statistics for device '%s'"), entryname);
return -1;
}
**retstats = *stats;
/* capacity are reported only per node-name so we need to transfer them */
if (disk && disk->src &&
(capstats = virHashLookup(blockstats, disk->src->nodeformat))) {
(*retstats)->capacity = capstats->capacity;
(*retstats)->physical = capstats->physical;
(*retstats)->wr_highest_offset = capstats->wr_highest_offset;
(*retstats)->wr_highest_offset_valid = capstats->wr_highest_offset_valid;
(*retstats)->write_threshold = capstats->write_threshold;
}
} else {
for (i = 0; i < vm->def->ndisks; i++) {
disk = vm->def->disks[i];
entryname = disk->info.alias;
/* No stats to report for vhost-user disk */
if (virStorageSourceGetActualType(disk->src) == VIR_STORAGE_TYPE_VHOST_USER)
continue;
if (QEMU_DOMAIN_DISK_PRIVATE(disk)->qomName)
entryname = QEMU_DOMAIN_DISK_PRIVATE(disk)->qomName;
if (!entryname)
continue;
if (!(stats = virHashLookup(blockstats, entryname))) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot find statistics for device '%s'"), entryname);
return -1;
}
qemuDomainBlockStatsGatherTotals(stats, *retstats);
}
}
return nstats;
}
static int
qemuDomainBlockStats(virDomainPtr dom,
const char *path,
virDomainBlockStatsPtr stats)
{
qemuBlockStats *blockstats = NULL;
int ret = -1;
virDomainObj *vm;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainBlockStatsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (qemuDomainBlocksStatsGather(vm, path, false, &blockstats) < 0)
goto endjob;
if (VIR_ASSIGN_IS_OVERFLOW(stats->rd_req, blockstats->rd_req) ||
VIR_ASSIGN_IS_OVERFLOW(stats->rd_bytes, blockstats->rd_bytes) ||
VIR_ASSIGN_IS_OVERFLOW(stats->wr_req, blockstats->wr_req) ||
VIR_ASSIGN_IS_OVERFLOW(stats->wr_bytes, blockstats->wr_bytes)) {
virReportError(VIR_ERR_OVERFLOW, "%s", _("statistic value too large"));
goto endjob;
}
/* qemu doesn't report the error count */
stats->errs = -1;
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
VIR_FREE(blockstats);
return ret;
}
static int
qemuDomainBlockStatsFlags(virDomainPtr dom,
const char *path,
virTypedParameterPtr params,
int *nparams,
unsigned int flags)
{
virDomainObj *vm;
qemuBlockStats *blockstats = NULL;
int nstats;
int ret = -1;
VIR_DEBUG("params=%p, flags=0x%x", params, flags);
virCheckFlags(VIR_TYPED_PARAM_STRING_OKAY, -1);
/* We don't return strings, and thus trivially support this flag. */
flags &= ~VIR_TYPED_PARAM_STRING_OKAY;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainBlockStatsFlagsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if ((nstats = qemuDomainBlocksStatsGather(vm, path, false,
&blockstats)) < 0)
goto endjob;
/* return count of supported stats */
if (*nparams == 0) {
*nparams = nstats;
ret = 0;
goto endjob;
}
nstats = 0;
#define QEMU_BLOCK_STATS_ASSIGN_PARAM(VAR, NAME) \
if (nstats < *nparams) { \
long long tmp; \
if (VIR_ASSIGN_IS_OVERFLOW(tmp, (blockstats->VAR))) { \
virReportError(VIR_ERR_OVERFLOW, \
_("value of '%s' is too large"), NAME); \
goto endjob; \
} \
if (virTypedParameterAssign(params + nstats, NAME, \
VIR_TYPED_PARAM_LLONG, tmp) < 0) \
goto endjob; \
nstats++; \
}
QEMU_BLOCK_STATS_ASSIGN_PARAM(wr_bytes, VIR_DOMAIN_BLOCK_STATS_WRITE_BYTES);
QEMU_BLOCK_STATS_ASSIGN_PARAM(wr_req, VIR_DOMAIN_BLOCK_STATS_WRITE_REQ);
QEMU_BLOCK_STATS_ASSIGN_PARAM(rd_bytes, VIR_DOMAIN_BLOCK_STATS_READ_BYTES);
QEMU_BLOCK_STATS_ASSIGN_PARAM(rd_req, VIR_DOMAIN_BLOCK_STATS_READ_REQ);
QEMU_BLOCK_STATS_ASSIGN_PARAM(flush_req, VIR_DOMAIN_BLOCK_STATS_FLUSH_REQ);
QEMU_BLOCK_STATS_ASSIGN_PARAM(wr_total_times,
VIR_DOMAIN_BLOCK_STATS_WRITE_TOTAL_TIMES);
QEMU_BLOCK_STATS_ASSIGN_PARAM(rd_total_times,
VIR_DOMAIN_BLOCK_STATS_READ_TOTAL_TIMES);
QEMU_BLOCK_STATS_ASSIGN_PARAM(flush_total_times,
VIR_DOMAIN_BLOCK_STATS_FLUSH_TOTAL_TIMES);
#undef QEMU_BLOCK_STATS_ASSIGN_PARAM
ret = 0;
*nparams = nstats;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
VIR_FREE(blockstats);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainInterfaceStats(virDomainPtr dom,
const char *device,
virDomainInterfaceStatsPtr stats)
{
virDomainObj *vm;
virDomainNetDef *net = NULL;
int ret = -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainInterfaceStatsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
if (!(net = virDomainNetFind(vm->def, device)))
goto cleanup;
if (virDomainNetGetActualType(net) == VIR_DOMAIN_NET_TYPE_VHOSTUSER) {
if (virNetDevOpenvswitchInterfaceStats(net->ifname, stats) < 0)
goto cleanup;
} else if (virDomainNetGetActualType(net) == VIR_DOMAIN_NET_TYPE_HOSTDEV) {
virDomainHostdevDef *hostdev = virDomainNetGetActualHostdev(net);
virPCIDeviceAddress *vfAddr;
if (!hostdev) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("hostdev interface missing hostdev data"));
goto cleanup;
}
vfAddr = &hostdev->source.subsys.u.pci.addr;
if (virNetDevVFInterfaceStats(vfAddr, stats) < 0)
goto cleanup;
} else {
if (virNetDevTapInterfaceStats(net->ifname, stats,
!virDomainNetTypeSharesHostView(net)) < 0)
goto cleanup;
}
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainSetInterfaceParameters(virDomainPtr dom,
const char *device,
virTypedParameterPtr params,
int nparams,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
size_t i;
virDomainObj *vm = NULL;
virDomainDef *def;
virDomainDef *persistentDef;
int ret = -1;
virDomainNetDef *net = NULL;
virDomainNetDef *persistentNet = NULL;
g_autoptr(virNetDevBandwidth) bandwidth = NULL;
g_autoptr(virNetDevBandwidth) newBandwidth = NULL;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
bool inboundSpecified = false, outboundSpecified = false;
int actualType;
bool qosSupported = true;
bool ovsType = false;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (virTypedParamsValidate(params, nparams,
VIR_DOMAIN_BANDWIDTH_IN_AVERAGE,
VIR_TYPED_PARAM_UINT,
VIR_DOMAIN_BANDWIDTH_IN_PEAK,
VIR_TYPED_PARAM_UINT,
VIR_DOMAIN_BANDWIDTH_IN_BURST,
VIR_TYPED_PARAM_UINT,
VIR_DOMAIN_BANDWIDTH_IN_FLOOR,
VIR_TYPED_PARAM_UINT,
VIR_DOMAIN_BANDWIDTH_OUT_AVERAGE,
VIR_TYPED_PARAM_UINT,
VIR_DOMAIN_BANDWIDTH_OUT_PEAK,
VIR_TYPED_PARAM_UINT,
VIR_DOMAIN_BANDWIDTH_OUT_BURST,
VIR_TYPED_PARAM_UINT,
NULL) < 0)
return -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
cfg = virQEMUDriverGetConfig(driver);
if (virDomainSetInterfaceParametersEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
if (def &&
!(net = virDomainNetFind(vm->def, device)))
goto endjob;
if (persistentDef &&
!(persistentNet = virDomainNetFind(persistentDef, device)))
goto endjob;
if (net) {
actualType = virDomainNetGetActualType(net);
qosSupported = virNetDevSupportsBandwidth(actualType);
ovsType = virDomainNetDefIsOvsport(net);
}
if (qosSupported && persistentNet) {
actualType = virDomainNetGetActualType(persistentNet);
qosSupported = virNetDevSupportsBandwidth(actualType);
}
if (!qosSupported) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("setting bandwidth on interfaces of "
"type '%s' is not implemented yet"),
virDomainNetTypeToString(actualType));
goto endjob;
}
bandwidth = g_new0(virNetDevBandwidth, 1);
bandwidth->in = g_new0(virNetDevBandwidthRate, 1);
bandwidth->out = g_new0(virNetDevBandwidthRate, 1);
for (i = 0; i < nparams; i++) {
virTypedParameterPtr param = &params[i];
if (STREQ(param->field, VIR_DOMAIN_BANDWIDTH_IN_AVERAGE)) {
bandwidth->in->average = param->value.ui;
inboundSpecified = true;
} else if (STREQ(param->field, VIR_DOMAIN_BANDWIDTH_IN_PEAK)) {
bandwidth->in->peak = param->value.ui;
} else if (STREQ(param->field, VIR_DOMAIN_BANDWIDTH_IN_BURST)) {
bandwidth->in->burst = param->value.ui;
} else if (STREQ(param->field, VIR_DOMAIN_BANDWIDTH_IN_FLOOR)) {
bandwidth->in->floor = param->value.ui;
inboundSpecified = true;
} else if (STREQ(param->field, VIR_DOMAIN_BANDWIDTH_OUT_AVERAGE)) {
bandwidth->out->average = param->value.ui;
outboundSpecified = true;
} else if (STREQ(param->field, VIR_DOMAIN_BANDWIDTH_OUT_PEAK)) {
bandwidth->out->peak = param->value.ui;
} else if (STREQ(param->field, VIR_DOMAIN_BANDWIDTH_OUT_BURST)) {
bandwidth->out->burst = param->value.ui;
}
}
/* average or floor are mandatory, peak and burst are optional.
* So if no average or floor is given, we free inbound/outbound
* here which causes inbound/outbound to not be set. */
if (!bandwidth->in->average && !bandwidth->in->floor)
VIR_FREE(bandwidth->in);
if (!bandwidth->out->average)
VIR_FREE(bandwidth->out);
if (net) {
newBandwidth = g_new0(virNetDevBandwidth, 1);
/* virNetDevBandwidthSet() will clear any previous value of
* bandwidth parameters, so merge with old bandwidth parameters
* here to prevent them from being lost. */
if (bandwidth->in ||
(!inboundSpecified && net->bandwidth && net->bandwidth->in)) {
newBandwidth->in = g_new0(virNetDevBandwidthRate, 1);
memcpy(newBandwidth->in,
bandwidth->in ? bandwidth->in : net->bandwidth->in,
sizeof(*newBandwidth->in));
}
if (bandwidth->out ||
(!outboundSpecified && net->bandwidth && net->bandwidth->out)) {
newBandwidth->out = g_new0(virNetDevBandwidthRate, 1);
memcpy(newBandwidth->out,
bandwidth->out ? bandwidth->out : net->bandwidth->out,
sizeof(*newBandwidth->out));
}
if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK) {
if (virDomainNetBandwidthUpdate(net, newBandwidth) < 0)
goto endjob;
} else {
if (virNetDevBandwidthHasFloor(bandwidth)) {
char ifmac[VIR_MAC_STRING_BUFLEN];
virMacAddrFormat(&net->mac, ifmac);
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("Invalid use of 'floor' on interface with MAC address %s "
"- 'floor' is only supported for interface type 'network' with forward type 'nat', 'route', 'open' or none"),
ifmac);
goto endjob;
}
}
if (ovsType) {
if (virNetDevOpenvswitchInterfaceSetQos(net->ifname, newBandwidth,
vm->def->uuid,
!virDomainNetTypeSharesHostView(net)) < 0) {
virErrorPtr orig_err;
virErrorPreserveLast(&orig_err);
ignore_value(virNetDevOpenvswitchInterfaceSetQos(net->ifname, newBandwidth,
vm->def->uuid,
!virDomainNetTypeSharesHostView(net)));
if (net->bandwidth) {
ignore_value(virDomainNetBandwidthUpdate(net,
net->bandwidth));
}
virErrorRestore(&orig_err);
goto endjob;
}
} else if (virNetDevBandwidthSet(net->ifname, newBandwidth, false,
!virDomainNetTypeSharesHostView(net)) < 0) {
virErrorPtr orig_err;
virErrorPreserveLast(&orig_err);
ignore_value(virNetDevBandwidthSet(net->ifname,
net->bandwidth,
false,
!virDomainNetTypeSharesHostView(net)));
if (net->bandwidth) {
ignore_value(virDomainNetBandwidthUpdate(net,
net->bandwidth));
}
virErrorRestore(&orig_err);
goto endjob;
}
/* If the old bandwidth was cleared out, restore qdisc. */
if (virDomainNetTypeSharesHostView(net)) {
if (!newBandwidth->out || newBandwidth->out->average == 0)
qemuDomainInterfaceSetDefaultQDisc(driver, net);
} else {
if (!newBandwidth->in || newBandwidth->in->average == 0)
qemuDomainInterfaceSetDefaultQDisc(driver, net);
}
virNetDevBandwidthFree(net->bandwidth);
if (newBandwidth->in || newBandwidth->out) {
net->bandwidth = g_steal_pointer(&newBandwidth);
} else {
net->bandwidth = NULL;
}
if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK) {
virNetDevBandwidthFree(net->data.network.actual->bandwidth);
if (virNetDevBandwidthCopy(&net->data.network.actual->bandwidth,
net->bandwidth) < 0)
goto endjob;
}
qemuDomainSaveStatus(vm);
}
if (persistentNet) {
if (!persistentNet->bandwidth) {
persistentNet->bandwidth = g_steal_pointer(&bandwidth);
} else {
if (bandwidth->in) {
VIR_FREE(persistentNet->bandwidth->in);
persistentNet->bandwidth->in = bandwidth->in;
bandwidth->in = NULL;
} else if (inboundSpecified) {
VIR_FREE(persistentNet->bandwidth->in);
}
if (bandwidth->out) {
VIR_FREE(persistentNet->bandwidth->out);
persistentNet->bandwidth->out = bandwidth->out;
bandwidth->out = NULL;
} else if (outboundSpecified) {
VIR_FREE(persistentNet->bandwidth->out);
}
}
if (virDomainDefSave(persistentDef, driver->xmlopt, cfg->configDir) < 0)
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetInterfaceParameters(virDomainPtr dom,
const char *device,
virTypedParameterPtr params,
int *nparams,
unsigned int flags)
{
size_t i;
virDomainObj *vm = NULL;
virDomainDef *def = NULL;
virDomainNetDef *net = NULL;
int ret = -1;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG |
VIR_TYPED_PARAM_STRING_OKAY, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainGetInterfaceParametersEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!(def = virDomainObjGetOneDef(vm, flags)))
goto cleanup;
if ((*nparams) == 0) {
*nparams = QEMU_NB_BANDWIDTH_PARAM;
ret = 0;
goto cleanup;
}
if (!(net = virDomainNetFind(def, device)))
goto cleanup;
for (i = 0; i < *nparams && i < QEMU_NB_BANDWIDTH_PARAM; i++) {
switch (i) {
case 0: /* inbound.average */
if (virTypedParameterAssign(&params[i],
VIR_DOMAIN_BANDWIDTH_IN_AVERAGE,
VIR_TYPED_PARAM_UINT, 0) < 0)
goto cleanup;
if (net->bandwidth && net->bandwidth->in)
params[i].value.ui = net->bandwidth->in->average;
break;
case 1: /* inbound.peak */
if (virTypedParameterAssign(&params[i],
VIR_DOMAIN_BANDWIDTH_IN_PEAK,
VIR_TYPED_PARAM_UINT, 0) < 0)
goto cleanup;
if (net->bandwidth && net->bandwidth->in)
params[i].value.ui = net->bandwidth->in->peak;
break;
case 2: /* inbound.burst */
if (virTypedParameterAssign(&params[i],
VIR_DOMAIN_BANDWIDTH_IN_BURST,
VIR_TYPED_PARAM_UINT, 0) < 0)
goto cleanup;
if (net->bandwidth && net->bandwidth->in)
params[i].value.ui = net->bandwidth->in->burst;
break;
case 3: /* inbound.floor */
if (virTypedParameterAssign(&params[i],
VIR_DOMAIN_BANDWIDTH_IN_FLOOR,
VIR_TYPED_PARAM_UINT, 0) < 0)
goto cleanup;
if (net->bandwidth && net->bandwidth->in)
params[i].value.ui = net->bandwidth->in->floor;
break;
case 4: /* outbound.average */
if (virTypedParameterAssign(&params[i],
VIR_DOMAIN_BANDWIDTH_OUT_AVERAGE,
VIR_TYPED_PARAM_UINT, 0) < 0)
goto cleanup;
if (net->bandwidth && net->bandwidth->out)
params[i].value.ui = net->bandwidth->out->average;
break;
case 5: /* outbound.peak */
if (virTypedParameterAssign(&params[i],
VIR_DOMAIN_BANDWIDTH_OUT_PEAK,
VIR_TYPED_PARAM_UINT, 0) < 0)
goto cleanup;
if (net->bandwidth && net->bandwidth->out)
params[i].value.ui = net->bandwidth->out->peak;
break;
case 6: /* outbound.burst */
if (virTypedParameterAssign(&params[i],
VIR_DOMAIN_BANDWIDTH_OUT_BURST,
VIR_TYPED_PARAM_UINT, 0) < 0)
goto cleanup;
if (net->bandwidth && net->bandwidth->out)
params[i].value.ui = net->bandwidth->out->burst;
break;
default:
break;
/* should not hit here */
}
}
if (*nparams > QEMU_NB_BANDWIDTH_PARAM)
*nparams = QEMU_NB_BANDWIDTH_PARAM;
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
/* This functions assumes that job VIR_JOB_QUERY is started by a caller */
static int
qemuDomainMemoryStatsInternal(virDomainObj *vm,
virDomainMemoryStatPtr stats,
unsigned int nr_stats)
{
int ret = -1;
long rss;
if (virDomainObjCheckActive(vm) < 0)
return -1;
if (virDomainDefHasMemballoon(vm->def)) {
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorGetMemoryStats(qemuDomainGetMonitor(vm),
vm->def->memballoon, stats, nr_stats);
qemuDomainObjExitMonitor(vm);
if (ret < 0 || ret >= nr_stats)
return ret;
} else {
ret = 0;
}
if (virProcessGetStatInfo(NULL, NULL, &rss, vm->pid, 0) < 0) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("cannot get RSS for domain"));
} else {
stats[ret].tag = VIR_DOMAIN_MEMORY_STAT_RSS;
stats[ret].val = rss;
ret++;
}
return ret;
}
static int
qemuDomainMemoryStats(virDomainPtr dom,
virDomainMemoryStatPtr stats,
unsigned int nr_stats,
unsigned int flags)
{
virDomainObj *vm;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainMemoryStatsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
goto cleanup;
ret = qemuDomainMemoryStatsInternal(vm, stats, nr_stats);
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainBlockPeek(virDomainPtr dom,
const char *path,
unsigned long long offset, size_t size,
void *buffer,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainDiskDef *disk = NULL;
virDomainObj *vm;
g_autofree char *tmpbuf = NULL;
ssize_t nread;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainBlockPeekEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!(disk = qemuDomainDiskByName(vm->def, path)))
goto cleanup;
if (virStorageSourceGetActualType(disk->src) == VIR_STORAGE_TYPE_VHOST_USER) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("peeking is not supported for vhostuser disk"));
goto cleanup;
}
if (disk->src->format != VIR_STORAGE_FILE_RAW) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("peeking is only supported for disk with 'raw' format not '%s'"),
virStorageFileFormatTypeToString(disk->src->format));
goto cleanup;
}
if (qemuDomainStorageFileInit(driver, vm, disk->src, NULL) < 0)
goto cleanup;
if ((nread = virStorageSourceRead(disk->src, offset, size, &tmpbuf)) < 0) {
if (nread == -2) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("storage file reading is not supported for "
"storage type %s (protocol: %s)"),
virStorageTypeToString(disk->src->type),
virStorageNetProtocolTypeToString(disk->src->protocol));
}
goto cleanup;
}
if (nread < size) {
virReportError(VIR_ERR_INVALID_ARG,
_("'%s' starting from %llu has only %zd bytes available"),
path, offset, nread);
goto cleanup;
}
memcpy(buffer, tmpbuf, size);
ret = 0;
cleanup:
if (disk)
virStorageSourceDeinit(disk->src);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainMemoryPeek(virDomainPtr dom,
unsigned long long offset, size_t size,
void *buffer,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
g_autofree char *tmp = NULL;
int fd = -1, ret = -1;
qemuDomainObjPrivate *priv;
virCheckFlags(VIR_MEMORY_VIRTUAL | VIR_MEMORY_PHYSICAL, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
priv = vm->privateData;
if (virDomainMemoryPeekEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (flags != VIR_MEMORY_VIRTUAL && flags != VIR_MEMORY_PHYSICAL) {
virReportError(VIR_ERR_INVALID_ARG,
"%s", _("flags parameter must be VIR_MEMORY_VIRTUAL or VIR_MEMORY_PHYSICAL"));
goto cleanup;
}
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
tmp = g_strdup_printf("%s/qemu.mem.XXXXXX", priv->libDir);
/* Create a temporary filename. */
if ((fd = g_mkstemp_full(tmp, O_RDWR | O_CLOEXEC, S_IRUSR | S_IWUSR)) == -1) {
virReportSystemError(errno,
_("g_mkstemp(\"%s\") failed"), tmp);
goto endjob;
}
qemuSecurityDomainSetPathLabel(driver, vm, tmp, false);
qemuDomainObjEnterMonitor(vm);
if (flags == VIR_MEMORY_VIRTUAL) {
if (qemuMonitorSaveVirtualMemory(priv->mon, offset, size, tmp) < 0) {
qemuDomainObjExitMonitor(vm);
goto endjob;
}
} else {
if (qemuMonitorSavePhysicalMemory(priv->mon, offset, size, tmp) < 0) {
qemuDomainObjExitMonitor(vm);
goto endjob;
}
}
qemuDomainObjExitMonitor(vm);
/* Read the memory file into buffer. */
if (saferead(fd, buffer, size) == (ssize_t)-1) {
virReportSystemError(errno,
_("failed to read temporary file "
"created with template %s"), tmp);
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
VIR_FORCE_CLOSE(fd);
if (tmp)
unlink(tmp);
virDomainObjEndAPI(&vm);
return ret;
}
/**
* @driver: qemu driver data
* @cfg: driver configuration data
* @vm: domain object
* @src: storage source data
* @ret_fd: pointer to return open'd file descriptor
* @ret_sb: pointer to return stat buffer (local or remote)
* @skipInaccessible: Don't report error if files are not accessible
*
* For local storage, open the file using qemuDomainOpenFile and then use
* fstat() to grab the stat struct data for the caller.
*
* For remote storage, attempt to access the file and grab the stat
* struct data if the remote connection supports it.
*
* Returns 1 if @src was successfully opened (@ret_fd and @ret_sb is populated),
* 0 if @src can't be opened and @skipInaccessible is true (no errors are
* reported) or -1 otherwise (errors are reported).
*/
static int
qemuDomainStorageOpenStat(virQEMUDriver *driver G_GNUC_UNUSED,
virQEMUDriverConfig *cfg,
virDomainObj *vm,
virStorageSource *src,
int *ret_fd,
struct stat *ret_sb,
bool skipInaccessible)
{
if (virStorageSourceIsLocalStorage(src)) {
if (skipInaccessible && !virFileExists(src->path))
return 0;
if ((*ret_fd = qemuDomainOpenFile(cfg, vm->def, src->path, O_RDONLY,
NULL)) < 0)
return -1;
if (fstat(*ret_fd, ret_sb) < 0) {
virReportSystemError(errno, _("cannot stat file '%s'"), src->path);
VIR_FORCE_CLOSE(*ret_fd);
return -1;
}
} else {
if (skipInaccessible && virStorageSourceSupportsBackingChainTraversal(src) <= 0)
return 0;
if (virStorageSourceInitAs(src, cfg->user, cfg->group) < 0)
return -1;
if (virStorageSourceStat(src, ret_sb) < 0) {
virStorageSourceDeinit(src);
virReportSystemError(errno, _("failed to stat remote file '%s'"),
NULLSTR(src->path));
return -1;
}
}
return 1;
}
/**
* @src: storage source data
* @fd: file descriptor to close for local
*
* If local, then just close the file descriptor.
* else remote, then tear down the storage driver backend connection.
*/
static void
qemuDomainStorageCloseStat(virStorageSource *src,
int *fd)
{
if (virStorageSourceIsLocalStorage(src))
VIR_FORCE_CLOSE(*fd);
else
virStorageSourceDeinit(src);
}
/**
* qemuDomainStorageUpdatePhysical:
* @driver: qemu driver
* @cfg: qemu driver configuration object
* @vm: domain object
* @src: storage source to update
*
* Update the physical size of the disk by reading the actual size of the image
* on disk.
*
* Returns 0 on successful update and -1 otherwise (some uncommon errors may be
* reported but are reset (thus only logged)).
*/
static int
qemuDomainStorageUpdatePhysical(virQEMUDriver *driver,
virQEMUDriverConfig *cfg,
virDomainObj *vm,
virStorageSource *src)
{
int ret;
int fd = -1;
struct stat sb;
if (virStorageSourceIsEmpty(src))
return 0;
if ((ret = qemuDomainStorageOpenStat(driver, cfg, vm, src, &fd, &sb, true)) <= 0) {
if (ret < 0)
virResetLastError();
return -1;
}
ret = virStorageSourceUpdatePhysicalSize(src, fd, &sb);
qemuDomainStorageCloseStat(src, &fd);
return ret;
}
/**
* @driver: qemu driver data
* @cfg: driver configuration data
* @vm: domain object
* @src: storage source data
* @skipInaccessible: Suppress reporting of common errors when accessing @src
*
* Refresh the capacity and allocation limits of a given storage source.
*
* Assumes that the caller has already obtained a domain job and only
* called for an offline domain. Being offline is particularly important
* since reading a file while qemu is writing it risks the reader seeing
* bogus data or avoiding opening a file in order to get stat data.
*
* We always want to check current on-disk statistics (as users have been
* known to change offline images behind our backs).
*
* For read-only disks, nothing should be changing unless the user has
* requested a block-commit action. For read-write disks, we know some
* special cases: capacity should not change without a block-resize (where
* capacity is the only stat that requires reading a file, and even then,
* only for non-raw files); and physical size of a raw image or of a
* block device should likewise not be changing without block-resize.
* On the other hand, allocation of a raw file can change (if the file
* is sparse, but the amount of sparseness changes due to writes or
* punching holes), and physical size of a non-raw file can change.
*
* Returns 1 if @src was successfully updated, 0 if @src can't be opened and
* @skipInaccessible is true (no errors are reported) or -1 otherwise (errors
* are reported).
*/
static int
qemuStorageLimitsRefresh(virQEMUDriver *driver,
virQEMUDriverConfig *cfg,
virDomainObj *vm,
virStorageSource *src,
bool skipInaccessible)
{
int rc;
int ret = -1;
int fd = -1;
struct stat sb;
g_autofree char *buf = NULL;
ssize_t len;
if ((rc = qemuDomainStorageOpenStat(driver, cfg, vm, src, &fd, &sb,
skipInaccessible)) <= 0)
return rc;
if (virStorageSourceIsLocalStorage(src)) {
if ((len = virFileReadHeaderFD(fd, VIR_STORAGE_MAX_HEADER, &buf)) < 0) {
virReportSystemError(errno, _("cannot read header '%s'"),
src->path);
goto cleanup;
}
} else {
if ((len = virStorageSourceRead(src, 0, VIR_STORAGE_MAX_HEADER, &buf)) < 0)
goto cleanup;
}
if (virStorageSourceUpdateBackingSizes(src, fd, &sb) < 0)
goto cleanup;
if (virStorageSourceUpdateCapacity(src, buf, len) < 0)
goto cleanup;
/* If guest is not using raw disk format and is on a host block
* device, then leave the value unspecified, so caller knows to
* query the highest allocated extent from QEMU
*/
if (virStorageSourceGetActualType(src) == VIR_STORAGE_TYPE_BLOCK &&
src->format != VIR_STORAGE_FILE_RAW &&
S_ISBLK(sb.st_mode))
src->allocation = 0;
ret = 1;
cleanup:
qemuDomainStorageCloseStat(src, &fd);
return ret;
}
static int
qemuDomainGetBlockInfo(virDomainPtr dom,
const char *path,
virDomainBlockInfoPtr info,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
int ret = -1;
virDomainDiskDef *disk;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
qemuBlockStats *entry = NULL;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
cfg = virQEMUDriverGetConfig(driver);
if (virDomainGetBlockInfoEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
goto cleanup;
if (!(disk = virDomainDiskByName(vm->def, path, false))) {
virReportError(VIR_ERR_INVALID_ARG,
_("invalid path %s not assigned to domain"), path);
goto endjob;
}
if (virStorageSourceGetActualType(disk->src) == VIR_STORAGE_TYPE_VHOST_USER) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("block info is not supported for vhostuser disk"));
goto endjob;
}
if (virStorageSourceIsEmpty(disk->src)) {
virReportError(VIR_ERR_INVALID_ARG,
_("disk '%s' does not currently have a source assigned"),
path);
goto endjob;
}
/* for inactive domains we have to peek into the files */
if (!virDomainObjIsActive(vm)) {
if ((qemuStorageLimitsRefresh(driver, cfg, vm, disk->src, false)) < 0)
goto endjob;
info->capacity = disk->src->capacity;
info->allocation = disk->src->allocation;
info->physical = disk->src->physical;
ret = 0;
goto endjob;
}
if (qemuDomainBlocksStatsGather(vm, path, true, &entry) < 0)
goto endjob;
if (!entry->wr_highest_offset_valid) {
info->allocation = entry->physical;
} else {
if (virStorageSourceGetActualType(disk->src) == VIR_STORAGE_TYPE_FILE &&
disk->src->format == VIR_STORAGE_FILE_QCOW2)
info->allocation = entry->physical;
else
info->allocation = entry->wr_highest_offset;
}
/* Unlike GetStatsBlock, this API has defined the expected return values
* for allocation and physical slightly differently.
*
* Having a zero for either or if they're the same is an indication that
* there's a sparse file backing this device. In this case, we'll force
* the setting of physical based on the on disk file size.
*
* Additionally, if qemu hasn't written to the file yet, then set the
* allocation to whatever qemu returned for physical (e.g. the "actual-
* size" from the json query) as that will match the expected allocation
* value for this API. NB: May still be 0 for block. */
if (entry->physical == 0 || info->allocation == 0 ||
info->allocation == entry->physical) {
if (info->allocation == 0)
info->allocation = entry->physical;
if (qemuDomainStorageUpdatePhysical(driver, cfg, vm, disk->src) == 0) {
info->physical = disk->src->physical;
} else {
info->physical = entry->physical;
}
} else {
info->physical = entry->physical;
}
info->capacity = entry->capacity;
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
VIR_FREE(entry);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuConnectDomainEventRegister(virConnectPtr conn,
virConnectDomainEventCallback callback,
void *opaque,
virFreeCallback freecb)
{
virQEMUDriver *driver = conn->privateData;
if (virConnectDomainEventRegisterEnsureACL(conn) < 0)
return -1;
if (virDomainEventStateRegister(conn,
driver->domainEventState,
callback, opaque, freecb) < 0)
return -1;
return 0;
}
static int
qemuConnectDomainEventDeregister(virConnectPtr conn,
virConnectDomainEventCallback callback)
{
virQEMUDriver *driver = conn->privateData;
if (virConnectDomainEventDeregisterEnsureACL(conn) < 0)
return -1;
if (virDomainEventStateDeregister(conn,
driver->domainEventState,
callback) < 0)
return -1;
return 0;
}
static int
qemuConnectDomainEventRegisterAny(virConnectPtr conn,
virDomainPtr dom,
int eventID,
virConnectDomainEventGenericCallback callback,
void *opaque,
virFreeCallback freecb)
{
virQEMUDriver *driver = conn->privateData;
int ret = -1;
if (virConnectDomainEventRegisterAnyEnsureACL(conn) < 0)
return -1;
if (virDomainEventStateRegisterID(conn,
driver->domainEventState,
dom, eventID,
callback, opaque, freecb, &ret) < 0)
ret = -1;
return ret;
}
static int
qemuConnectDomainEventDeregisterAny(virConnectPtr conn,
int callbackID)
{
virQEMUDriver *driver = conn->privateData;
if (virConnectDomainEventDeregisterAnyEnsureACL(conn) < 0)
return -1;
if (virObjectEventStateDeregisterID(conn,
driver->domainEventState,
callbackID, true) < 0)
return -1;
return 0;
}
/*******************************************************************
* Migration Protocol Version 2
*******************************************************************/
/* Prepare is the first step, and it runs on the destination host.
*
* This version starts an empty VM listening on a localhost TCP port, and
* sets up the corresponding virStream to handle the incoming data.
*/
static int
qemuDomainMigratePrepareTunnel(virConnectPtr dconn,
virStreamPtr st,
unsigned long flags,
const char *dname,
unsigned long resource G_GNUC_UNUSED,
const char *dom_xml)
{
virQEMUDriver *driver = dconn->privateData;
g_autoptr(virDomainDef) def = NULL;
g_autofree char *origname = NULL;
g_autoptr(qemuMigrationParams) migParams = NULL;
virCheckFlags(QEMU_MIGRATION_FLAGS, -1);
if (!(flags & VIR_MIGRATE_TUNNELLED)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("PrepareTunnel called but no TUNNELLED flag set"));
return -1;
}
if (!(migParams = qemuMigrationParamsFromFlags(NULL, 0, flags,
QEMU_MIGRATION_DESTINATION)))
return -1;
if (virLockManagerPluginUsesState(driver->lockManager)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Cannot use migrate v2 protocol with lock manager %s"),
virLockManagerPluginGetName(driver->lockManager));
return -1;
}
if (!(def = qemuMigrationAnyPrepareDef(driver, NULL, dom_xml, dname, &origname)))
return -1;
if (virDomainMigratePrepareTunnelEnsureACL(dconn, def) < 0)
return -1;
return qemuMigrationDstPrepareTunnel(driver, dconn,
NULL, 0, NULL, NULL, /* No cookies in v2 */
st, &def, origname, migParams, flags);
}
/* Prepare is the first step, and it runs on the destination host.
*
* This starts an empty VM listening on a TCP port.
*/
static int ATTRIBUTE_NONNULL(5)
qemuDomainMigratePrepare2(virConnectPtr dconn,
char **cookie G_GNUC_UNUSED,
int *cookielen G_GNUC_UNUSED,
const char *uri_in,
char **uri_out,
unsigned long flags,
const char *dname,
unsigned long resource G_GNUC_UNUSED,
const char *dom_xml)
{
virQEMUDriver *driver = dconn->privateData;
g_autoptr(virDomainDef) def = NULL;
g_autofree char *origname = NULL;
g_autoptr(qemuMigrationParams) migParams = NULL;
virCheckFlags(QEMU_MIGRATION_FLAGS, -1);
if (flags & VIR_MIGRATE_TUNNELLED) {
/* this is a logical error; we never should have gotten here with
* VIR_MIGRATE_TUNNELLED set
*/
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Tunnelled migration requested but invalid "
"RPC method called"));
return -1;
}
if (!(migParams = qemuMigrationParamsFromFlags(NULL, 0, flags,
QEMU_MIGRATION_DESTINATION)))
return -1;
if (virLockManagerPluginUsesState(driver->lockManager)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Cannot use migrate v2 protocol with lock manager %s"),
virLockManagerPluginGetName(driver->lockManager));
return -1;
}
if (!(def = qemuMigrationAnyPrepareDef(driver, NULL, dom_xml, dname, &origname)))
return -1;
if (virDomainMigratePrepare2EnsureACL(dconn, def) < 0)
return -1;
/* Do not use cookies in v2 protocol, since the cookie
* length was not sufficiently large, causing failures
* migrating between old & new libvirtd
*/
return qemuMigrationDstPrepareDirect(driver, dconn,
NULL, 0, NULL, NULL, /* No cookies */
uri_in, uri_out,
&def, origname, NULL, 0, NULL, 0, NULL,
migParams, flags);
}
/* Perform is the second step, and it runs on the source host. */
static int
qemuDomainMigratePerform(virDomainPtr dom,
const char *cookie,
int cookielen,
const char *uri,
unsigned long flags,
const char *dname,
unsigned long resource)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
int ret = -1;
const char *dconnuri = NULL;
g_autoptr(qemuMigrationParams) migParams = NULL;
virCheckFlags(QEMU_MIGRATION_FLAGS, -1);
if (virLockManagerPluginUsesState(driver->lockManager)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Cannot use migrate v2 protocol with lock manager %s"),
virLockManagerPluginGetName(driver->lockManager));
goto cleanup;
}
if (!(migParams = qemuMigrationParamsFromFlags(NULL, 0, flags,
QEMU_MIGRATION_SOURCE)))
goto cleanup;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainMigratePerformEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (flags & VIR_MIGRATE_PEER2PEER)
dconnuri = g_steal_pointer(&uri);
/* Do not output cookies in v2 protocol, since the cookie
* length was not sufficiently large, causing failures
* migrating between old & new libvirtd.
*
* Consume any cookie we were able to decode though
*/
ret = qemuMigrationSrcPerform(driver, dom->conn, vm, NULL,
NULL, dconnuri, uri, NULL, NULL, 0, NULL, 0,
NULL,
migParams, cookie, cookielen,
NULL, NULL, /* No output cookies in v2 */
flags, dname, resource, false);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
/* Finish is the third and final step, and it runs on the destination host. */
static virDomainPtr
qemuDomainMigrateFinish2(virConnectPtr dconn,
const char *dname,
const char *cookie G_GNUC_UNUSED,
int cookielen G_GNUC_UNUSED,
const char *uri G_GNUC_UNUSED,
unsigned long flags,
int retcode)
{
virQEMUDriver *driver = dconn->privateData;
virDomainObj *vm;
virCheckFlags(QEMU_MIGRATION_FLAGS, NULL);
vm = virDomainObjListFindByName(driver->domains, dname);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN,
_("no domain with matching name '%s'"), dname);
qemuMigrationDstErrorReport(driver, dname);
return NULL;
}
if (virDomainMigrateFinish2EnsureACL(dconn, vm->def) < 0) {
virDomainObjEndAPI(&vm);
return NULL;
}
/* Do not use cookies in v2 protocol, since the cookie
* length was not sufficiently large, causing failures
* migrating between old & new libvirtd
*/
return qemuMigrationDstFinish(driver, dconn, vm,
NULL, 0, NULL, NULL, /* No cookies */
flags, retcode, false);
}
/*******************************************************************
* Migration Protocol Version 3
*******************************************************************/
static char *
qemuDomainMigrateBegin3(virDomainPtr domain,
const char *xmlin,
char **cookieout,
int *cookieoutlen,
unsigned long flags,
const char *dname,
unsigned long resource G_GNUC_UNUSED)
{
virDomainObj *vm;
virCheckFlags(QEMU_MIGRATION_FLAGS, NULL);
if (!(vm = qemuDomainObjFromDomain(domain)))
return NULL;
if (virDomainMigrateBegin3EnsureACL(domain->conn, vm->def) < 0) {
virDomainObjEndAPI(&vm);
return NULL;
}
return qemuMigrationSrcBegin(domain->conn, vm, xmlin, dname,
cookieout, cookieoutlen, 0, NULL, flags);
}
static char *
qemuDomainMigrateBegin3Params(virDomainPtr domain,
virTypedParameterPtr params,
int nparams,
char **cookieout,
int *cookieoutlen,
unsigned int flags)
{
const char *xmlin = NULL;
const char *dname = NULL;
g_autofree const char **migrate_disks = NULL;
int nmigrate_disks;
virDomainObj *vm;
virCheckFlags(QEMU_MIGRATION_FLAGS, NULL);
if (virTypedParamsValidate(params, nparams, QEMU_MIGRATION_PARAMETERS) < 0)
return NULL;
if (virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_DEST_XML,
&xmlin) < 0 ||
virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_DEST_NAME,
&dname) < 0)
return NULL;
nmigrate_disks = virTypedParamsGetStringList(params, nparams,
VIR_MIGRATE_PARAM_MIGRATE_DISKS,
&migrate_disks);
if (nmigrate_disks < 0)
return NULL;
if (!(vm = qemuDomainObjFromDomain(domain)))
return NULL;
if (virDomainMigrateBegin3ParamsEnsureACL(domain->conn, vm->def) < 0) {
virDomainObjEndAPI(&vm);
return NULL;
}
return qemuMigrationSrcBegin(domain->conn, vm, xmlin, dname,
cookieout, cookieoutlen,
nmigrate_disks, migrate_disks, flags);
}
static int
qemuDomainMigratePrepare3(virConnectPtr dconn,
const char *cookiein,
int cookieinlen,
char **cookieout,
int *cookieoutlen,
const char *uri_in,
char **uri_out,
unsigned long flags,
const char *dname,
unsigned long resource G_GNUC_UNUSED,
const char *dom_xml)
{
virQEMUDriver *driver = dconn->privateData;
g_autoptr(virDomainDef) def = NULL;
g_autofree char *origname = NULL;
g_autoptr(qemuMigrationParams) migParams = NULL;
virCheckFlags(QEMU_MIGRATION_FLAGS, -1);
if (flags & VIR_MIGRATE_TUNNELLED) {
/* this is a logical error; we never should have gotten here with
* VIR_MIGRATE_TUNNELLED set
*/
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Tunnelled migration requested but invalid "
"RPC method called"));
return -1;
}
if (!(migParams = qemuMigrationParamsFromFlags(NULL, 0, flags,
QEMU_MIGRATION_DESTINATION)))
return -1;
if (!(def = qemuMigrationAnyPrepareDef(driver, NULL, dom_xml, dname, &origname)))
return -1;
if (virDomainMigratePrepare3EnsureACL(dconn, def) < 0)
return -1;
return qemuMigrationDstPrepareDirect(driver, dconn,
cookiein, cookieinlen,
cookieout, cookieoutlen,
uri_in, uri_out,
&def, origname, NULL, 0, NULL, 0,
NULL, migParams, flags);
}
static int
qemuDomainMigratePrepare3Params(virConnectPtr dconn,
virTypedParameterPtr params,
int nparams,
const char *cookiein,
int cookieinlen,
char **cookieout,
int *cookieoutlen,
char **uri_out,
unsigned int flags)
{
virQEMUDriver *driver = dconn->privateData;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
g_autoptr(virDomainDef) def = NULL;
const char *dom_xml = NULL;
const char *dname = NULL;
const char *uri_in = NULL;
const char *listenAddress = NULL;
int nbdPort = 0;
int nmigrate_disks;
g_autofree const char **migrate_disks = NULL;
g_autofree char *origname = NULL;
g_autoptr(qemuMigrationParams) migParams = NULL;
const char *nbdURI = NULL;
virCheckFlags(QEMU_MIGRATION_FLAGS, -1);
if (virTypedParamsValidate(params, nparams, QEMU_MIGRATION_PARAMETERS) < 0)
return -1;
if (virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_DEST_XML,
&dom_xml) < 0 ||
virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_DEST_NAME,
&dname) < 0 ||
virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_URI,
&uri_in) < 0 ||
virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_LISTEN_ADDRESS,
&listenAddress) < 0 ||
virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_DISKS_URI,
&nbdURI) < 0 ||
virTypedParamsGetInt(params, nparams,
VIR_MIGRATE_PARAM_DISKS_PORT,
&nbdPort) < 0)
return -1;
nmigrate_disks = virTypedParamsGetStringList(params, nparams,
VIR_MIGRATE_PARAM_MIGRATE_DISKS,
&migrate_disks);
if (nmigrate_disks < 0)
return -1;
if (!(migParams = qemuMigrationParamsFromFlags(params, nparams, flags,
QEMU_MIGRATION_DESTINATION)))
return -1;
if (flags & (VIR_MIGRATE_NON_SHARED_DISK | VIR_MIGRATE_NON_SHARED_INC) ||
nmigrate_disks > 0) {
if (uri_in && STRPREFIX(uri_in, "unix:") && !nbdURI) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("NBD URI must be supplied when "
"migration URI uses UNIX transport method"));
return -1;
}
}
if (nbdURI && nbdPort) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("Both port and URI requested for disk migration "
"while being mutually exclusive"));
return -1;
}
if (listenAddress) {
if (uri_in && STRPREFIX(uri_in, "unix:")) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("Usage of listen-address is forbidden when "
"migration URI uses UNIX transport method"));
return -1;
}
} else {
listenAddress = cfg->migrationAddress;
}
if (flags & VIR_MIGRATE_TUNNELLED) {
/* this is a logical error; we never should have gotten here with
* VIR_MIGRATE_TUNNELLED set
*/
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Tunnelled migration requested but invalid "
"RPC method called"));
return -1;
}
if (!(def = qemuMigrationAnyPrepareDef(driver, NULL, dom_xml, dname, &origname)))
return -1;
if (virDomainMigratePrepare3ParamsEnsureACL(dconn, def) < 0)
return -1;
return qemuMigrationDstPrepareDirect(driver, dconn,
cookiein, cookieinlen,
cookieout, cookieoutlen,
uri_in, uri_out,
&def, origname, listenAddress,
nmigrate_disks, migrate_disks, nbdPort,
nbdURI, migParams, flags);
}
static int
qemuDomainMigratePrepareTunnel3(virConnectPtr dconn,
virStreamPtr st,
const char *cookiein,
int cookieinlen,
char **cookieout,
int *cookieoutlen,
unsigned long flags,
const char *dname,
unsigned long resource G_GNUC_UNUSED,
const char *dom_xml)
{
virQEMUDriver *driver = dconn->privateData;
g_autoptr(virDomainDef) def = NULL;
g_autofree char *origname = NULL;
g_autoptr(qemuMigrationParams) migParams = NULL;
virCheckFlags(QEMU_MIGRATION_FLAGS, -1);
if (!(flags & VIR_MIGRATE_TUNNELLED)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("PrepareTunnel called but no TUNNELLED flag set"));
return -1;
}
if (!(migParams = qemuMigrationParamsFromFlags(NULL, 0, flags,
QEMU_MIGRATION_DESTINATION)))
return -1;
if (!(def = qemuMigrationAnyPrepareDef(driver, NULL, dom_xml, dname, &origname)))
return -1;
if (virDomainMigratePrepareTunnel3EnsureACL(dconn, def) < 0)
return -1;
return qemuMigrationDstPrepareTunnel(driver, dconn,
cookiein, cookieinlen,
cookieout, cookieoutlen,
st, &def, origname, migParams, flags);
}
static int
qemuDomainMigratePrepareTunnel3Params(virConnectPtr dconn,
virStreamPtr st,
virTypedParameterPtr params,
int nparams,
const char *cookiein,
int cookieinlen,
char **cookieout,
int *cookieoutlen,
unsigned int flags)
{
virQEMUDriver *driver = dconn->privateData;
g_autoptr(virDomainDef) def = NULL;
const char *dom_xml = NULL;
const char *dname = NULL;
g_autofree char *origname = NULL;
g_autoptr(qemuMigrationParams) migParams = NULL;
virCheckFlags(QEMU_MIGRATION_FLAGS, -1);
if (virTypedParamsValidate(params, nparams, QEMU_MIGRATION_PARAMETERS) < 0)
return -1;
if (virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_DEST_XML,
&dom_xml) < 0 ||
virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_DEST_NAME,
&dname) < 0)
return -1;
if (!(flags & VIR_MIGRATE_TUNNELLED)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("PrepareTunnel called but no TUNNELLED flag set"));
return -1;
}
if (!(migParams = qemuMigrationParamsFromFlags(params, nparams, flags,
QEMU_MIGRATION_DESTINATION)))
return -1;
if (!(def = qemuMigrationAnyPrepareDef(driver, NULL, dom_xml, dname, &origname)))
return -1;
if (virDomainMigratePrepareTunnel3ParamsEnsureACL(dconn, def) < 0)
return -1;
return qemuMigrationDstPrepareTunnel(driver, dconn,
cookiein, cookieinlen,
cookieout, cookieoutlen,
st, &def, origname, migParams, flags);
}
static int
qemuDomainMigratePerform3(virDomainPtr dom,
const char *xmlin,
const char *cookiein,
int cookieinlen,
char **cookieout,
int *cookieoutlen,
const char *dconnuri,
const char *uri,
unsigned long flags,
const char *dname,
unsigned long resource)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
g_autoptr(qemuMigrationParams) migParams = NULL;
int ret = -1;
virCheckFlags(QEMU_MIGRATION_FLAGS, -1);
if (!(migParams = qemuMigrationParamsFromFlags(NULL, 0, flags,
QEMU_MIGRATION_SOURCE)))
goto cleanup;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainMigratePerform3EnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
ret = qemuMigrationSrcPerform(driver, dom->conn, vm, xmlin, NULL,
dconnuri, uri, NULL, NULL, 0, NULL, 0,
NULL, migParams,
cookiein, cookieinlen,
cookieout, cookieoutlen,
flags, dname, resource, true);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainMigratePerform3Params(virDomainPtr dom,
const char *dconnuri,
virTypedParameterPtr params,
int nparams,
const char *cookiein,
int cookieinlen,
char **cookieout,
int *cookieoutlen,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
const char *dom_xml = NULL;
const char *persist_xml = NULL;
const char *dname = NULL;
const char *uri = NULL;
const char *graphicsuri = NULL;
const char *listenAddress = NULL;
int nmigrate_disks;
g_autofree const char **migrate_disks = NULL;
unsigned long long bandwidth = 0;
int nbdPort = 0;
g_autoptr(qemuMigrationParams) migParams = NULL;
const char *nbdURI = NULL;
int ret = -1;
virCheckFlags(QEMU_MIGRATION_FLAGS, -1);
if (virTypedParamsValidate(params, nparams, QEMU_MIGRATION_PARAMETERS) < 0)
return ret;
if (virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_DEST_XML,
&dom_xml) < 0 ||
virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_DEST_NAME,
&dname) < 0 ||
virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_URI,
&uri) < 0 ||
virTypedParamsGetULLong(params, nparams,
VIR_MIGRATE_PARAM_BANDWIDTH,
&bandwidth) < 0 ||
virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_GRAPHICS_URI,
&graphicsuri) < 0 ||
virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_LISTEN_ADDRESS,
&listenAddress) < 0 ||
virTypedParamsGetInt(params, nparams,
VIR_MIGRATE_PARAM_DISKS_PORT,
&nbdPort) < 0 ||
virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_DISKS_URI,
&nbdURI) < 0 ||
virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_PERSIST_XML,
&persist_xml) < 0)
goto cleanup;
if (nbdURI && nbdPort) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("Both port and URI requested for disk migration "
"while being mutually exclusive"));
goto cleanup;
}
if (listenAddress) {
if (uri && STRPREFIX(uri, "unix:")) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("Usage of listen-address is forbidden when "
"migration URI uses UNIX transport method"));
return -1;
}
}
nmigrate_disks = virTypedParamsGetStringList(params, nparams,
VIR_MIGRATE_PARAM_MIGRATE_DISKS,
&migrate_disks);
if (nmigrate_disks < 0)
goto cleanup;
if (flags & (VIR_MIGRATE_NON_SHARED_DISK | VIR_MIGRATE_NON_SHARED_INC) ||
nmigrate_disks > 0) {
if (uri && STRPREFIX(uri, "unix:") && !nbdURI) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("NBD URI must be supplied when "
"migration URI uses UNIX transport method"));
return -1;
}
}
if (!(migParams = qemuMigrationParamsFromFlags(params, nparams, flags,
QEMU_MIGRATION_SOURCE)))
goto cleanup;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainMigratePerform3ParamsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
ret = qemuMigrationSrcPerform(driver, dom->conn, vm, dom_xml, persist_xml,
dconnuri, uri, graphicsuri, listenAddress,
nmigrate_disks, migrate_disks, nbdPort,
nbdURI, migParams,
cookiein, cookieinlen, cookieout, cookieoutlen,
flags, dname, bandwidth, true);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static virDomainPtr
qemuDomainMigrateFinish3(virConnectPtr dconn,
const char *dname,
const char *cookiein,
int cookieinlen,
char **cookieout,
int *cookieoutlen,
const char *dconnuri G_GNUC_UNUSED,
const char *uri G_GNUC_UNUSED,
unsigned long flags,
int cancelled)
{
virQEMUDriver *driver = dconn->privateData;
virDomainObj *vm;
virCheckFlags(QEMU_MIGRATION_FLAGS, NULL);
if (!dname) {
virReportError(VIR_ERR_NO_DOMAIN, "%s", _("missing domain name"));
return NULL;
}
vm = virDomainObjListFindByName(driver->domains, dname);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN,
_("no domain with matching name '%s'"), dname);
qemuMigrationDstErrorReport(driver, dname);
return NULL;
}
if (virDomainMigrateFinish3EnsureACL(dconn, vm->def) < 0) {
virDomainObjEndAPI(&vm);
return NULL;
}
return qemuMigrationDstFinish(driver, dconn, vm,
cookiein, cookieinlen,
cookieout, cookieoutlen,
flags, cancelled, true);
}
static virDomainPtr
qemuDomainMigrateFinish3Params(virConnectPtr dconn,
virTypedParameterPtr params,
int nparams,
const char *cookiein,
int cookieinlen,
char **cookieout,
int *cookieoutlen,
unsigned int flags,
int cancelled)
{
virQEMUDriver *driver = dconn->privateData;
virDomainObj *vm;
const char *dname = NULL;
virCheckFlags(QEMU_MIGRATION_FLAGS, NULL);
if (virTypedParamsValidate(params, nparams, QEMU_MIGRATION_PARAMETERS) < 0)
return NULL;
if (virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_DEST_NAME,
&dname) < 0)
return NULL;
if (!dname) {
virReportError(VIR_ERR_NO_DOMAIN, "%s", _("missing domain name"));
return NULL;
}
vm = virDomainObjListFindByName(driver->domains, dname);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN,
_("no domain with matching name '%s'"), dname);
qemuMigrationDstErrorReport(driver, dname);
return NULL;
}
if (virDomainMigrateFinish3ParamsEnsureACL(dconn, vm->def) < 0) {
virDomainObjEndAPI(&vm);
return NULL;
}
return qemuMigrationDstFinish(driver, dconn, vm,
cookiein, cookieinlen,
cookieout, cookieoutlen,
flags, cancelled, true);
}
static int
qemuDomainMigrateConfirm3(virDomainPtr domain,
const char *cookiein,
int cookieinlen,
unsigned long flags,
int cancelled)
{
virDomainObj *vm;
virCheckFlags(QEMU_MIGRATION_FLAGS, -1);
if (!(vm = qemuDomainObjFromDomain(domain)))
return -1;
if (virDomainMigrateConfirm3EnsureACL(domain->conn, vm->def) < 0) {
virDomainObjEndAPI(&vm);
return -1;
}
return qemuMigrationSrcConfirm(domain->conn->privateData, vm, cookiein, cookieinlen,
flags, cancelled);
}
static int
qemuDomainMigrateConfirm3Params(virDomainPtr domain,
virTypedParameterPtr params,
int nparams,
const char *cookiein,
int cookieinlen,
unsigned int flags,
int cancelled)
{
virDomainObj *vm;
virCheckFlags(QEMU_MIGRATION_FLAGS, -1);
if (virTypedParamsValidate(params, nparams, QEMU_MIGRATION_PARAMETERS) < 0)
return -1;
if (!(vm = qemuDomainObjFromDomain(domain)))
return -1;
if (virDomainMigrateConfirm3ParamsEnsureACL(domain->conn, vm->def) < 0) {
virDomainObjEndAPI(&vm);
return -1;
}
return qemuMigrationSrcConfirm(domain->conn->privateData, vm, cookiein, cookieinlen,
flags, cancelled);
}
static int
qemuNodeDeviceDetachFlags(virNodeDevicePtr dev,
const char *driverName,
unsigned int flags)
{
virQEMUDriver *driver = dev->conn->privateData;
virHostdevManager *hostdev_mgr = driver->hostdevMgr;
virCheckFlags(0, -1);
if (!driverName)
driverName = "vfio";
/* Only the 'vfio' driver is supported and a special error message for
* the previously supported 'kvm' driver is provided below. */
if (STRNEQ(driverName, "vfio") && STRNEQ(driverName, "kvm")) {
virReportError(VIR_ERR_INVALID_ARG,
_("unknown driver name '%s'"), driverName);
return -1;
}
if (STREQ(driverName, "kvm")) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("KVM device assignment is no longer "
"supported on this system"));
return -1;
}
if (!qemuHostdevHostSupportsPassthroughVFIO()) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("VFIO device assignment is currently not "
"supported on this system"));
return -1;
}
/* virNodeDeviceDetachFlagsEnsureACL() is being called by
* virDomainDriverNodeDeviceDetachFlags() */
return virDomainDriverNodeDeviceDetachFlags(dev, hostdev_mgr, driverName);
}
static int
qemuNodeDeviceDettach(virNodeDevicePtr dev)
{
return qemuNodeDeviceDetachFlags(dev, NULL, 0);
}
static int
qemuNodeDeviceReAttach(virNodeDevicePtr dev)
{
virQEMUDriver *driver = dev->conn->privateData;
virHostdevManager *hostdev_mgr = driver->hostdevMgr;
/* virNodeDeviceReAttachEnsureACL() is being called by
* virDomainDriverNodeDeviceReAttach() */
return virDomainDriverNodeDeviceReAttach(dev, hostdev_mgr);
}
static int
qemuNodeDeviceReset(virNodeDevicePtr dev)
{
virQEMUDriver *driver = dev->conn->privateData;
virHostdevManager *hostdev_mgr = driver->hostdevMgr;
/* virNodeDeviceResetEnsureACL() is being called by
* virDomainDriverNodeDeviceReset() */
return virDomainDriverNodeDeviceReset(dev, hostdev_mgr);
}
static int
qemuConnectCompareCPU(virConnectPtr conn,
const char *xmlDesc,
unsigned int flags)
{
virQEMUDriver *driver = conn->privateData;
g_autoptr(virCPUDef) cpu = NULL;
bool failIncompatible;
bool validateXML;
virCheckFlags(VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE |
VIR_CONNECT_COMPARE_CPU_VALIDATE_XML,
VIR_CPU_COMPARE_ERROR);
if (virConnectCompareCPUEnsureACL(conn) < 0)
return VIR_CPU_COMPARE_ERROR;
failIncompatible = !!(flags & VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE);
validateXML = !!(flags & VIR_CONNECT_COMPARE_CPU_VALIDATE_XML);
if (!(cpu = virQEMUDriverGetHostCPU(driver)))
return VIR_CPU_COMPARE_ERROR;
return virCPUCompareXML(driver->hostarch, cpu,
xmlDesc, failIncompatible, validateXML);
}
static virCPUCompareResult
qemuConnectCPUModelComparison(virQEMUCaps *qemuCaps,
const char *libDir,
uid_t runUid,
gid_t runGid,
virCPUDef *cpu_a,
virCPUDef *cpu_b,
bool failIncompatible)
{
g_autoptr(qemuProcessQMP) proc = NULL;
g_autofree char *result = NULL;
if (!(proc = qemuProcessQMPNew(virQEMUCapsGetBinary(qemuCaps),
libDir, runUid, runGid, false)))
return VIR_CPU_COMPARE_ERROR;
if (qemuProcessQMPStart(proc) < 0)
return VIR_CPU_COMPARE_ERROR;
if (qemuMonitorGetCPUModelComparison(proc->mon, cpu_a, cpu_b, &result) < 0)
return VIR_CPU_COMPARE_ERROR;
if (STREQ(result, "identical"))
return VIR_CPU_COMPARE_IDENTICAL;
if (STREQ(result, "superset"))
return VIR_CPU_COMPARE_SUPERSET;
if (failIncompatible) {
virReportError(VIR_ERR_CPU_INCOMPATIBLE, NULL);
return VIR_CPU_COMPARE_ERROR;
}
return VIR_CPU_COMPARE_INCOMPATIBLE;
}
static int
qemuConnectCompareHypervisorCPU(virConnectPtr conn,
const char *emulator,
const char *archStr,
const char *machine,
const char *virttypeStr,
const char *xmlCPU,
unsigned int flags)
{
int ret = VIR_CPU_COMPARE_ERROR;
virQEMUDriver *driver = conn->privateData;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
g_autoptr(virQEMUCaps) qemuCaps = NULL;
bool failIncompatible;
bool validateXML;
virCPUDef *hvCPU;
virCPUDef *cpu = NULL;
virArch arch;
virDomainVirtType virttype;
virCheckFlags(VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE |
VIR_CONNECT_COMPARE_CPU_VALIDATE_XML,
VIR_CPU_COMPARE_ERROR);
if (virConnectCompareHypervisorCPUEnsureACL(conn) < 0)
goto cleanup;
failIncompatible = !!(flags & VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE);
validateXML = !!(flags & VIR_CONNECT_COMPARE_CPU_VALIDATE_XML);
qemuCaps = virQEMUCapsCacheLookupDefault(driver->qemuCapsCache,
emulator,
archStr,
virttypeStr,
machine,
&arch, &virttype, NULL);
if (!qemuCaps)
goto cleanup;
hvCPU = virQEMUCapsGetHostModel(qemuCaps, virttype,
VIR_QEMU_CAPS_HOST_CPU_REPORTED);
if (!hvCPU || hvCPU->fallback != VIR_CPU_FALLBACK_FORBID) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("QEMU '%s' does not support reporting CPU model for "
"virttype '%s'"),
virQEMUCapsGetBinary(qemuCaps),
virDomainVirtTypeToString(virttype));
goto cleanup;
}
if (ARCH_IS_X86(arch)) {
ret = virCPUCompareXML(arch, hvCPU, xmlCPU, failIncompatible,
validateXML);
} else if (ARCH_IS_S390(arch) &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_QUERY_CPU_MODEL_COMPARISON)) {
if (virCPUDefParseXMLString(xmlCPU, VIR_CPU_TYPE_AUTO, &cpu,
validateXML) < 0)
goto cleanup;
if (!cpu->model) {
if (cpu->mode == VIR_CPU_MODE_HOST_PASSTHROUGH) {
cpu->model = g_strdup("host");
} else if (cpu->mode == VIR_CPU_MODE_MAXIMUM) {
cpu->model = g_strdup("max");
} else {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("cpu parameter is missing a model name"));
goto cleanup;
}
}
ret = qemuConnectCPUModelComparison(qemuCaps, cfg->libDir,
cfg->user, cfg->group,
hvCPU, cpu, failIncompatible);
} else {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("comparing with the hypervisor CPU is not supported "
"for arch %s"), virArchToString(arch));
}
cleanup:
virCPUDefFree(cpu);
return ret;
}
static char *
qemuConnectBaselineCPU(virConnectPtr conn G_GNUC_UNUSED,
const char **xmlCPUs,
unsigned int ncpus,
unsigned int flags)
{
virCPUDef **cpus = NULL;
virCPUDef *baseline = NULL;
virCPUDef *cpu = NULL;
char *cpustr = NULL;
virCheckFlags(VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES |
VIR_CONNECT_BASELINE_CPU_MIGRATABLE, NULL);
if (virConnectBaselineCPUEnsureACL(conn) < 0)
goto cleanup;
if (!(cpus = virCPUDefListParse(xmlCPUs, ncpus, VIR_CPU_TYPE_HOST)))
goto cleanup;
if (!(baseline = virCPUBaseline(VIR_ARCH_NONE, cpus, ncpus, NULL, NULL,
!!(flags & VIR_CONNECT_BASELINE_CPU_MIGRATABLE))))
goto cleanup;
if (!(cpu = virCPUDefCopyWithoutModel(baseline)))
goto cleanup;
if (virCPUDefCopyModelFilter(cpu, baseline, false,
virQEMUCapsCPUFilterFeatures,
&cpus[0]->arch) < 0)
goto cleanup;
if ((flags & VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES) &&
virCPUExpandFeatures(cpus[0]->arch, cpu) < 0)
goto cleanup;
cpustr = virCPUDefFormat(cpu, NULL);
cleanup:
virCPUDefListFree(cpus);
virCPUDefFree(baseline);
virCPUDefFree(cpu);
return cpustr;
}
/**
* qemuConnectStealCPUModelFromInfo:
*
* Consumes @src and replaces the content of @dst with CPU model name and
* features from @src. When this function returns (both with success or
* failure), @src is freed.
*/
static int
qemuConnectStealCPUModelFromInfo(virCPUDef *dst,
qemuMonitorCPUModelInfo **src)
{
g_autoptr(qemuMonitorCPUModelInfo) info = NULL;
size_t i;
virCPUDefFreeModel(dst);
info = g_steal_pointer(src);
dst->model = g_steal_pointer(&info->name);
for (i = 0; i < info->nprops; i++) {
char *name = info->props[i].name;
if (info->props[i].type != QEMU_MONITOR_CPU_PROPERTY_BOOLEAN ||
!info->props[i].value.boolean)
continue;
if (virCPUDefAddFeature(dst, name, VIR_CPU_FEATURE_REQUIRE) < 0)
return -1;
}
return 0;
}
static virCPUDef *
qemuConnectCPUModelBaseline(virQEMUCaps *qemuCaps,
const char *libDir,
uid_t runUid,
gid_t runGid,
bool expand_features,
virCPUDef **cpus,
int ncpus,
virDomainCapsCPUModels *cpuModels)
{
g_autoptr(qemuProcessQMP) proc = NULL;
g_autoptr(virCPUDef) baseline = NULL;
qemuMonitorCPUModelInfo *result = NULL;
qemuMonitorCPUModelExpansionType expansion_type;
size_t i;
for (i = 0; i < ncpus; i++) {
if (!cpus[i]) {
virReportError(VIR_ERR_INVALID_ARG,
_("invalid CPU definition at index %zu"), i);
return NULL;
}
if (!cpus[i]->model) {
virReportError(VIR_ERR_INVALID_ARG,
_("no CPU model specified at index %zu"), i);
return NULL;
}
if (!virDomainCapsCPUModelsGet(cpuModels, cpus[i]->model)) {
virReportError(VIR_ERR_INVALID_ARG,
_("CPU model '%s' not supported by hypervisor"),
cpus[i]->model);
return NULL;
}
}
if (!(proc = qemuProcessQMPNew(virQEMUCapsGetBinary(qemuCaps),
libDir, runUid, runGid, false)))
return NULL;
if (qemuProcessQMPStart(proc) < 0)
return NULL;
baseline = g_new0(virCPUDef, 1);
if (virCPUDefCopyModel(baseline, cpus[0], false) < 0)
return NULL;
for (i = 1; i < ncpus; i++) {
if (qemuMonitorGetCPUModelBaseline(proc->mon, baseline,
cpus[i], &result) < 0)
return NULL;
if (qemuConnectStealCPUModelFromInfo(baseline, &result) < 0)
return NULL;
}
if (expand_features || ncpus == 1) {
expansion_type = expand_features ? QEMU_MONITOR_CPU_MODEL_EXPANSION_FULL
: QEMU_MONITOR_CPU_MODEL_EXPANSION_STATIC;
if (qemuMonitorGetCPUModelExpansion(proc->mon, expansion_type,
baseline, true, false, &result) < 0)
return NULL;
if (qemuConnectStealCPUModelFromInfo(baseline, &result) < 0)
return NULL;
}
return g_steal_pointer(&baseline);
}
static char *
qemuConnectBaselineHypervisorCPU(virConnectPtr conn,
const char *emulator,
const char *archStr,
const char *machine,
const char *virttypeStr,
const char **xmlCPUs,
unsigned int ncpus,
unsigned int flags)
{
virQEMUDriver *driver = conn->privateData;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
virCPUDef **cpus = NULL;
g_autoptr(virQEMUCaps) qemuCaps = NULL;
virArch arch;
virDomainVirtType virttype;
g_autoptr(virDomainCapsCPUModels) cpuModels = NULL;
bool migratable;
virCPUDef *cpu = NULL;
char *cpustr = NULL;
g_auto(GStrv) features = NULL;
virCheckFlags(VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES |
VIR_CONNECT_BASELINE_CPU_MIGRATABLE, NULL);
if (virConnectBaselineHypervisorCPUEnsureACL(conn) < 0)
goto cleanup;
migratable = !!(flags & VIR_CONNECT_BASELINE_CPU_MIGRATABLE);
if (!(cpus = virCPUDefListParse(xmlCPUs, ncpus, VIR_CPU_TYPE_AUTO)))
goto cleanup;
qemuCaps = virQEMUCapsCacheLookupDefault(driver->qemuCapsCache,
emulator,
archStr,
virttypeStr,
machine,
&arch, &virttype, NULL);
if (!qemuCaps)
goto cleanup;
if (!(cpuModels = virQEMUCapsGetCPUModels(qemuCaps, virttype, NULL, NULL)) ||
cpuModels->nmodels == 0) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("QEMU '%s' does not support any CPU models for "
"virttype '%s'"),
virQEMUCapsGetBinary(qemuCaps),
virDomainVirtTypeToString(virttype));
goto cleanup;
}
if (ARCH_IS_X86(arch)) {
int rc = virQEMUCapsGetCPUFeatures(qemuCaps, virttype,
migratable, &features);
if (rc < 0)
goto cleanup;
if (features && rc == 0) {
/* We got only migratable features from QEMU if we asked for them,
* no further filtering in virCPUBaseline is desired. */
migratable = false;
}
if (!(cpu = virCPUBaseline(arch, cpus, ncpus, cpuModels,
(const char **)features, migratable)))
goto cleanup;
} else if (ARCH_IS_S390(arch) &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_QUERY_CPU_MODEL_BASELINE) &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_QUERY_CPU_MODEL_EXPANSION)) {
bool expand_features = (flags & VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES);
if (!(cpu = qemuConnectCPUModelBaseline(qemuCaps, cfg->libDir,
cfg->user, cfg->group,
expand_features, cpus, ncpus,
cpuModels)))
goto cleanup;
} else {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("computing baseline hypervisor CPU is not supported "
"for arch %s"), virArchToString(arch));
goto cleanup;
}
cpu->fallback = VIR_CPU_FALLBACK_FORBID;
if ((flags & VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES) &&
virCPUExpandFeatures(arch, cpu) < 0)
goto cleanup;
cpustr = virCPUDefFormat(cpu, NULL);
cleanup:
virCPUDefListFree(cpus);
virCPUDefFree(cpu);
return cpustr;
}
static int
qemuDomainGetJobInfoMigrationStats(virDomainObj *vm,
virDomainJobData *jobData)
{
qemuDomainJobDataPrivate *privStats = jobData->privateData;
switch (jobData->status) {
case VIR_DOMAIN_JOB_STATUS_ACTIVE:
if (privStats->statsType == QEMU_DOMAIN_JOB_STATS_TYPE_MIGRATION &&
qemuMigrationSrcFetchMirrorStats(vm, VIR_ASYNC_JOB_NONE,
jobData) < 0)
return -1;
break;
case VIR_DOMAIN_JOB_STATUS_MIGRATING:
case VIR_DOMAIN_JOB_STATUS_HYPERVISOR_COMPLETED:
case VIR_DOMAIN_JOB_STATUS_POSTCOPY:
case VIR_DOMAIN_JOB_STATUS_PAUSED:
case VIR_DOMAIN_JOB_STATUS_POSTCOPY_PAUSED:
if (qemuMigrationAnyFetchStats(vm, VIR_ASYNC_JOB_NONE,
jobData, NULL) < 0)
return -1;
break;
case VIR_DOMAIN_JOB_STATUS_NONE:
case VIR_DOMAIN_JOB_STATUS_COMPLETED:
case VIR_DOMAIN_JOB_STATUS_FAILED:
case VIR_DOMAIN_JOB_STATUS_CANCELED:
default:
return 0;
}
return qemuDomainJobDataUpdateTime(jobData);
}
static int
qemuDomainGetJobInfoDumpStats(virDomainObj *vm,
virDomainJobData *jobData)
{
qemuDomainObjPrivate *priv = vm->privateData;
qemuDomainJobDataPrivate *privJob = jobData->privateData;
qemuMonitorDumpStats stats = { 0 };
int rc;
if (qemuDomainObjEnterMonitorAsync(vm, VIR_ASYNC_JOB_NONE) < 0)
return -1;
rc = qemuMonitorQueryDump(priv->mon, &stats);
qemuDomainObjExitMonitor(vm);
if (rc < 0)
return -1;
privJob->stats.dump = stats;
if (qemuDomainJobDataUpdateTime(jobData) < 0)
return -1;
switch (privJob->stats.dump.status) {
case QEMU_MONITOR_DUMP_STATUS_NONE:
case QEMU_MONITOR_DUMP_STATUS_FAILED:
case QEMU_MONITOR_DUMP_STATUS_LAST:
virReportError(VIR_ERR_OPERATION_FAILED,
_("dump query failed, status=%d"),
privJob->stats.dump.status);
return -1;
break;
case QEMU_MONITOR_DUMP_STATUS_ACTIVE:
jobData->status = VIR_DOMAIN_JOB_STATUS_ACTIVE;
VIR_DEBUG("dump active, bytes written='%llu' remaining='%llu'",
privJob->stats.dump.completed,
privJob->stats.dump.total -
privJob->stats.dump.completed);
break;
case QEMU_MONITOR_DUMP_STATUS_COMPLETED:
jobData->status = VIR_DOMAIN_JOB_STATUS_COMPLETED;
VIR_DEBUG("dump completed, bytes written='%llu'",
privJob->stats.dump.completed);
break;
}
return 0;
}
static int
qemuDomainGetJobStatsInternal(virDomainObj *vm,
bool completed,
virDomainJobData **jobData)
{
qemuDomainObjPrivate *priv = vm->privateData;
qemuDomainJobDataPrivate *privStats = NULL;
int ret = -1;
*jobData = NULL;
if (completed) {
if (priv->job.completed && !priv->job.current)
*jobData = virDomainJobDataCopy(priv->job.completed);
return 0;
}
if (priv->job.asyncJob == VIR_ASYNC_JOB_MIGRATION_IN) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("migration statistics are available only on "
"the source host"));
return -1;
}
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
return -1;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
if (!priv->job.current) {
ret = 0;
goto cleanup;
}
*jobData = virDomainJobDataCopy(priv->job.current);
privStats = (*jobData)->privateData;
switch (privStats->statsType) {
case QEMU_DOMAIN_JOB_STATS_TYPE_MIGRATION:
case QEMU_DOMAIN_JOB_STATS_TYPE_SAVEDUMP:
if (qemuDomainGetJobInfoMigrationStats(vm, *jobData) < 0)
goto cleanup;
break;
case QEMU_DOMAIN_JOB_STATS_TYPE_MEMDUMP:
if (qemuDomainGetJobInfoDumpStats(vm, *jobData) < 0)
goto cleanup;
break;
case QEMU_DOMAIN_JOB_STATS_TYPE_BACKUP:
if (qemuBackupGetJobInfoStats(vm, *jobData) < 0)
goto cleanup;
break;
case QEMU_DOMAIN_JOB_STATS_TYPE_NONE:
break;
}
ret = 0;
cleanup:
qemuDomainObjEndJob(vm);
return ret;
}
static int
qemuDomainGetJobInfo(virDomainPtr dom,
virDomainJobInfoPtr info)
{
g_autoptr(virDomainJobData) jobData = NULL;
virDomainObj *vm;
int ret = -1;
memset(info, 0, sizeof(*info));
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainGetJobInfoEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainGetJobStatsInternal(vm, false, &jobData) < 0)
goto cleanup;
if (!jobData ||
jobData->status == VIR_DOMAIN_JOB_STATUS_NONE) {
ret = 0;
goto cleanup;
}
ret = qemuDomainJobDataToInfo(jobData, info);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetJobStats(virDomainPtr dom,
int *type,
virTypedParameterPtr *params,
int *nparams,
unsigned int flags)
{
virDomainObj *vm;
qemuDomainObjPrivate *priv;
g_autoptr(virDomainJobData) jobData = NULL;
bool completed = !!(flags & VIR_DOMAIN_JOB_STATS_COMPLETED);
int ret = -1;
virCheckFlags(VIR_DOMAIN_JOB_STATS_COMPLETED |
VIR_DOMAIN_JOB_STATS_KEEP_COMPLETED, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainGetJobStatsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
priv = vm->privateData;
if (qemuDomainGetJobStatsInternal(vm, completed, &jobData) < 0)
goto cleanup;
if (!jobData ||
jobData->status == VIR_DOMAIN_JOB_STATUS_NONE) {
*type = VIR_DOMAIN_JOB_NONE;
*params = NULL;
*nparams = 0;
ret = 0;
goto cleanup;
}
ret = qemuDomainJobDataToParams(jobData, type, params, nparams);
if (completed && ret == 0 && !(flags & VIR_DOMAIN_JOB_STATS_KEEP_COMPLETED))
g_clear_pointer(&priv->job.completed, virDomainJobDataFree);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainAbortJobMigration(virDomainObj *vm)
{
qemuDomainObjPrivate *priv = vm->privateData;
int ret;
VIR_DEBUG("Cancelling migration job at client request");
qemuDomainObjAbortAsyncJob(vm);
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorMigrateCancel(priv->mon);
qemuDomainObjExitMonitor(vm);
return ret;
}
static int
qemuDomainAbortJobPostcopy(virDomainObj *vm,
unsigned int flags)
{
qemuDomainObjPrivate *priv = vm->privateData;
int rc;
if (!(flags & VIR_DOMAIN_ABORT_JOB_POSTCOPY)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot abort migration in post-copy mode"));
return -1;
}
VIR_DEBUG("Suspending post-copy migration at client request");
qemuDomainObjAbortAsyncJob(vm);
qemuDomainObjEnterMonitor(vm);
rc = qemuMonitorMigratePause(priv->mon);
qemuDomainObjExitMonitor(vm);
return rc;
}
static int
qemuDomainAbortJobFlags(virDomainPtr dom,
unsigned int flags)
{
virDomainObj *vm;
int ret = -1;
qemuDomainObjPrivate *priv;
VIR_DEBUG("flags=0x%x", flags);
virCheckFlags(VIR_DOMAIN_ABORT_JOB_POSTCOPY, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainAbortJobFlagsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_ABORT) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
priv = vm->privateData;
if (flags & VIR_DOMAIN_ABORT_JOB_POSTCOPY &&
(priv->job.asyncJob != VIR_ASYNC_JOB_MIGRATION_OUT ||
!virDomainObjIsPostcopy(vm, VIR_DOMAIN_JOB_OPERATION_MIGRATION_OUT))) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("current job is not outgoing migration in post-copy mode"));
goto endjob;
}
switch (priv->job.asyncJob) {
case VIR_ASYNC_JOB_NONE:
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("no job is active on the domain"));
break;
case VIR_ASYNC_JOB_MIGRATION_IN:
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot abort incoming migration;"
" use virDomainDestroy instead"));
break;
case VIR_ASYNC_JOB_START:
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot abort VM start;"
" use virDomainDestroy instead"));
break;
case VIR_ASYNC_JOB_MIGRATION_OUT:
if (virDomainObjIsPostcopy(vm, VIR_DOMAIN_JOB_OPERATION_MIGRATION_OUT))
ret = qemuDomainAbortJobPostcopy(vm, flags);
else
ret = qemuDomainAbortJobMigration(vm);
break;
case VIR_ASYNC_JOB_SAVE:
ret = qemuDomainAbortJobMigration(vm);
break;
case VIR_ASYNC_JOB_DUMP:
if (priv->job.apiFlags & VIR_DUMP_MEMORY_ONLY) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot abort memory-only dump"));
goto endjob;
}
ret = qemuDomainAbortJobMigration(vm);
break;
case VIR_ASYNC_JOB_SNAPSHOT:
ret = qemuDomainAbortJobMigration(vm);
break;
case VIR_ASYNC_JOB_BACKUP:
qemuBackupJobCancelBlockjobs(vm, priv->backup, true, VIR_ASYNC_JOB_NONE);
ret = 0;
break;
case VIR_ASYNC_JOB_LAST:
default:
virReportEnumRangeError(virDomainAsyncJob, priv->job.asyncJob);
break;
}
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainAbortJob(virDomainPtr dom)
{
return qemuDomainAbortJobFlags(dom, 0);
}
static int
qemuDomainMigrateSetMaxDowntime(virDomainPtr dom,
unsigned long long downtime,
unsigned int flags)
{
virDomainObj *vm;
g_autoptr(qemuMigrationParams) migParams = NULL;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainMigrateSetMaxDowntimeEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MIGRATION_OP) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
VIR_DEBUG("Setting migration downtime to %llums", downtime);
if (!(migParams = qemuMigrationParamsNew()))
goto endjob;
if (qemuMigrationParamsSetULL(migParams,
QEMU_MIGRATION_PARAM_DOWNTIME_LIMIT,
downtime) < 0)
goto endjob;
if (qemuMigrationParamsApply(vm, VIR_ASYNC_JOB_NONE,
migParams, 0) < 0)
goto endjob;
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainMigrateGetMaxDowntime(virDomainPtr dom,
unsigned long long *downtime,
unsigned int flags)
{
virDomainObj *vm;
g_autoptr(qemuMigrationParams) migParams = NULL;
int ret = -1;
int rc;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainMigrateGetMaxDowntimeEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (qemuMigrationParamsFetch(vm, VIR_ASYNC_JOB_NONE, &migParams) < 0)
goto endjob;
if ((rc = qemuMigrationParamsGetULL(migParams,
QEMU_MIGRATION_PARAM_DOWNTIME_LIMIT,
downtime)) < 0) {
goto endjob;
}
if (rc == 1) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("Querying migration downtime is not supported by "
"QEMU binary"));
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainMigrateGetCompressionCache(virDomainPtr dom,
unsigned long long *cacheSize,
unsigned int flags)
{
virDomainObj *vm;
g_autoptr(qemuMigrationParams) migParams = NULL;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainMigrateGetCompressionCacheEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!qemuMigrationCapsGet(vm, QEMU_MIGRATION_CAP_XBZRLE)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("Compressed migration is not supported by "
"QEMU binary"));
goto endjob;
}
if (qemuMigrationParamsFetch(vm, VIR_ASYNC_JOB_NONE,
&migParams) < 0)
goto endjob;
if (qemuMigrationParamsGetULL(migParams,
QEMU_MIGRATION_PARAM_XBZRLE_CACHE_SIZE,
cacheSize) < 0)
goto endjob;
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainMigrateSetCompressionCache(virDomainPtr dom,
unsigned long long cacheSize,
unsigned int flags)
{
virDomainObj *vm;
g_autoptr(qemuMigrationParams) migParams = NULL;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainMigrateSetCompressionCacheEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MIGRATION_OP) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!qemuMigrationCapsGet(vm, QEMU_MIGRATION_CAP_XBZRLE)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("Compressed migration is not supported by "
"QEMU binary"));
goto endjob;
}
VIR_DEBUG("Setting compression cache to %llu B", cacheSize);
if (!(migParams = qemuMigrationParamsNew()))
goto endjob;
if (qemuMigrationParamsSetULL(migParams,
QEMU_MIGRATION_PARAM_XBZRLE_CACHE_SIZE,
cacheSize) < 0)
goto endjob;
if (qemuMigrationParamsApply(vm, VIR_ASYNC_JOB_NONE,
migParams, 0) < 0)
goto endjob;
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainMigrateSetMaxSpeed(virDomainPtr dom,
unsigned long bandwidth,
unsigned int flags)
{
virDomainObj *vm;
qemuDomainObjPrivate *priv;
bool postcopy = !!(flags & VIR_DOMAIN_MIGRATE_MAX_SPEED_POSTCOPY);
g_autoptr(qemuMigrationParams) migParams = NULL;
qemuMigrationParam param;
unsigned long long max;
int ret = -1;
virCheckFlags(VIR_DOMAIN_MIGRATE_MAX_SPEED_POSTCOPY, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
priv = vm->privateData;
if (virDomainMigrateSetMaxSpeedEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (postcopy)
max = ULLONG_MAX / 1024 / 1024;
else
max = QEMU_DOMAIN_MIG_BANDWIDTH_MAX;
if (bandwidth > max) {
virReportError(VIR_ERR_OVERFLOW,
_("bandwidth must be less than %llu"), max + 1);
goto cleanup;
}
if (!postcopy && !virDomainObjIsActive(vm)) {
priv->migMaxBandwidth = bandwidth;
ret = 0;
goto cleanup;
}
if (qemuDomainObjBeginJob(vm, VIR_JOB_MIGRATION_OP) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
VIR_DEBUG("Setting migration bandwidth to %luMbs", bandwidth);
if (!(migParams = qemuMigrationParamsNew()))
goto endjob;
if (postcopy)
param = QEMU_MIGRATION_PARAM_MAX_POSTCOPY_BANDWIDTH;
else
param = QEMU_MIGRATION_PARAM_MAX_BANDWIDTH;
if (qemuMigrationParamsSetULL(migParams, param,
bandwidth * 1024 * 1024) < 0)
goto endjob;
if (qemuMigrationParamsApply(vm, VIR_ASYNC_JOB_NONE,
migParams, 0) < 0)
goto endjob;
if (!postcopy)
priv->migMaxBandwidth = bandwidth;
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainMigrationGetPostcopyBandwidth(virDomainObj *vm,
unsigned long *bandwidth)
{
g_autoptr(qemuMigrationParams) migParams = NULL;
unsigned long long bw;
int rc;
int ret = -1;
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
return -1;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
if (qemuMigrationParamsFetch(vm, VIR_ASYNC_JOB_NONE, &migParams) < 0)
goto cleanup;
if ((rc = qemuMigrationParamsGetULL(migParams,
QEMU_MIGRATION_PARAM_MAX_POSTCOPY_BANDWIDTH,
&bw)) < 0)
goto cleanup;
if (rc == 1) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("querying maximum post-copy migration speed is "
"not supported by QEMU binary"));
goto cleanup;
}
/* QEMU reports B/s while we use MiB/s */
bw /= 1024 * 1024;
if (bw > ULONG_MAX) {
virReportError(VIR_ERR_OVERFLOW,
_("bandwidth %llu is greater than %lu which is the "
"maximum value supported by this API"),
bw, ULONG_MAX);
goto cleanup;
}
*bandwidth = bw;
ret = 0;
cleanup:
qemuDomainObjEndJob(vm);
return ret;
}
static int
qemuDomainMigrateGetMaxSpeed(virDomainPtr dom,
unsigned long *bandwidth,
unsigned int flags)
{
virDomainObj *vm;
qemuDomainObjPrivate *priv;
bool postcopy = !!(flags & VIR_DOMAIN_MIGRATE_MAX_SPEED_POSTCOPY);
int ret = -1;
virCheckFlags(VIR_DOMAIN_MIGRATE_MAX_SPEED_POSTCOPY, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
priv = vm->privateData;
if (virDomainMigrateGetMaxSpeedEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (postcopy) {
if (qemuDomainMigrationGetPostcopyBandwidth(vm, bandwidth) < 0)
goto cleanup;
} else {
*bandwidth = priv->migMaxBandwidth;
}
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainMigrateStartPostCopy(virDomainPtr dom,
unsigned int flags)
{
virDomainObj *vm;
qemuDomainObjPrivate *priv;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainMigrateStartPostCopyEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MIGRATION_OP) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
priv = vm->privateData;
if (priv->job.asyncJob != VIR_ASYNC_JOB_MIGRATION_OUT) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("post-copy can only be started while "
"outgoing migration is in progress"));
goto endjob;
}
if (!(priv->job.apiFlags & VIR_MIGRATE_POSTCOPY)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("switching to post-copy requires migration to be "
"started with VIR_MIGRATE_POSTCOPY flag"));
goto endjob;
}
VIR_DEBUG("Starting post-copy");
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorMigrateStartPostCopy(priv->mon);
qemuDomainObjExitMonitor(vm);
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static virDomainSnapshotPtr
qemuDomainSnapshotCreateXML(virDomainPtr domain,
const char *xmlDesc,
unsigned int flags)
{
virDomainObj *vm = NULL;
virDomainSnapshotPtr snapshot = NULL;
if (!(vm = qemuDomainObjFromDomain(domain)))
goto cleanup;
if (virDomainSnapshotCreateXMLEnsureACL(domain->conn, vm->def, flags) < 0)
goto cleanup;
snapshot = qemuSnapshotCreateXML(domain, vm, xmlDesc, flags);
cleanup:
virDomainObjEndAPI(&vm);
return snapshot;
}
static int
qemuDomainSnapshotListNames(virDomainPtr domain,
char **names,
int nameslen,
unsigned int flags)
{
virDomainObj *vm = NULL;
int n = -1;
virCheckFlags(VIR_DOMAIN_SNAPSHOT_LIST_ROOTS |
VIR_DOMAIN_SNAPSHOT_LIST_TOPOLOGICAL |
VIR_DOMAIN_SNAPSHOT_FILTERS_ALL, -1);
if (!(vm = qemuDomainObjFromDomain(domain)))
return -1;
if (virDomainSnapshotListNamesEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
n = virDomainSnapshotObjListGetNames(vm->snapshots, NULL, names, nameslen,
flags);
cleanup:
virDomainObjEndAPI(&vm);
return n;
}
static int
qemuDomainSnapshotNum(virDomainPtr domain,
unsigned int flags)
{
virDomainObj *vm = NULL;
int n = -1;
virCheckFlags(VIR_DOMAIN_SNAPSHOT_LIST_ROOTS |
VIR_DOMAIN_SNAPSHOT_LIST_TOPOLOGICAL |
VIR_DOMAIN_SNAPSHOT_FILTERS_ALL, -1);
if (!(vm = qemuDomainObjFromDomain(domain)))
return -1;
if (virDomainSnapshotNumEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
n = virDomainSnapshotObjListNum(vm->snapshots, NULL, flags);
cleanup:
virDomainObjEndAPI(&vm);
return n;
}
static int
qemuDomainListAllSnapshots(virDomainPtr domain,
virDomainSnapshotPtr **snaps,
unsigned int flags)
{
virDomainObj *vm = NULL;
int n = -1;
virCheckFlags(VIR_DOMAIN_SNAPSHOT_LIST_ROOTS |
VIR_DOMAIN_SNAPSHOT_LIST_TOPOLOGICAL |
VIR_DOMAIN_SNAPSHOT_FILTERS_ALL, -1);
if (!(vm = qemuDomainObjFromDomain(domain)))
return -1;
if (virDomainListAllSnapshotsEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
n = virDomainListSnapshots(vm->snapshots, NULL, domain, snaps, flags);
cleanup:
virDomainObjEndAPI(&vm);
return n;
}
static int
qemuDomainSnapshotListChildrenNames(virDomainSnapshotPtr snapshot,
char **names,
int nameslen,
unsigned int flags)
{
virDomainObj *vm = NULL;
virDomainMomentObj *snap = NULL;
int n = -1;
virCheckFlags(VIR_DOMAIN_SNAPSHOT_LIST_DESCENDANTS |
VIR_DOMAIN_SNAPSHOT_LIST_TOPOLOGICAL |
VIR_DOMAIN_SNAPSHOT_FILTERS_ALL, -1);
if (!(vm = qemuDomObjFromSnapshot(snapshot)))
return -1;
if (virDomainSnapshotListChildrenNamesEnsureACL(snapshot->domain->conn, vm->def) < 0)
goto cleanup;
if (!(snap = qemuSnapObjFromSnapshot(vm, snapshot)))
goto cleanup;
n = virDomainSnapshotObjListGetNames(vm->snapshots, snap, names, nameslen,
flags);
cleanup:
virDomainObjEndAPI(&vm);
return n;
}
static int
qemuDomainSnapshotNumChildren(virDomainSnapshotPtr snapshot,
unsigned int flags)
{
virDomainObj *vm = NULL;
virDomainMomentObj *snap = NULL;
int n = -1;
virCheckFlags(VIR_DOMAIN_SNAPSHOT_LIST_DESCENDANTS |
VIR_DOMAIN_SNAPSHOT_LIST_TOPOLOGICAL |
VIR_DOMAIN_SNAPSHOT_FILTERS_ALL, -1);
if (!(vm = qemuDomObjFromSnapshot(snapshot)))
return -1;
if (virDomainSnapshotNumChildrenEnsureACL(snapshot->domain->conn, vm->def) < 0)
goto cleanup;
if (!(snap = qemuSnapObjFromSnapshot(vm, snapshot)))
goto cleanup;
n = virDomainSnapshotObjListNum(vm->snapshots, snap, flags);
cleanup:
virDomainObjEndAPI(&vm);
return n;
}
static int
qemuDomainSnapshotListAllChildren(virDomainSnapshotPtr snapshot,
virDomainSnapshotPtr **snaps,
unsigned int flags)
{
virDomainObj *vm = NULL;
virDomainMomentObj *snap = NULL;
int n = -1;
virCheckFlags(VIR_DOMAIN_SNAPSHOT_LIST_DESCENDANTS |
VIR_DOMAIN_SNAPSHOT_LIST_TOPOLOGICAL |
VIR_DOMAIN_SNAPSHOT_FILTERS_ALL, -1);
if (!(vm = qemuDomObjFromSnapshot(snapshot)))
return -1;
if (virDomainSnapshotListAllChildrenEnsureACL(snapshot->domain->conn, vm->def) < 0)
goto cleanup;
if (!(snap = qemuSnapObjFromSnapshot(vm, snapshot)))
goto cleanup;
n = virDomainListSnapshots(vm->snapshots, snap, snapshot->domain, snaps,
flags);
cleanup:
virDomainObjEndAPI(&vm);
return n;
}
static virDomainSnapshotPtr
qemuDomainSnapshotLookupByName(virDomainPtr domain,
const char *name,
unsigned int flags)
{
virDomainObj *vm;
virDomainMomentObj *snap = NULL;
virDomainSnapshotPtr snapshot = NULL;
virCheckFlags(0, NULL);
if (!(vm = qemuDomainObjFromDomain(domain)))
return NULL;
if (virDomainSnapshotLookupByNameEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
if (!(snap = qemuSnapObjFromName(vm, name)))
goto cleanup;
snapshot = virGetDomainSnapshot(domain, snap->def->name);
cleanup:
virDomainObjEndAPI(&vm);
return snapshot;
}
static int
qemuDomainHasCurrentSnapshot(virDomainPtr domain,
unsigned int flags)
{
virDomainObj *vm;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(domain)))
return -1;
if (virDomainHasCurrentSnapshotEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
ret = (virDomainSnapshotGetCurrent(vm->snapshots) != NULL);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static virDomainSnapshotPtr
qemuDomainSnapshotGetParent(virDomainSnapshotPtr snapshot,
unsigned int flags)
{
virDomainObj *vm;
virDomainMomentObj *snap = NULL;
virDomainSnapshotPtr parent = NULL;
virCheckFlags(0, NULL);
if (!(vm = qemuDomObjFromSnapshot(snapshot)))
return NULL;
if (virDomainSnapshotGetParentEnsureACL(snapshot->domain->conn, vm->def) < 0)
goto cleanup;
if (!(snap = qemuSnapObjFromSnapshot(vm, snapshot)))
goto cleanup;
if (!snap->def->parent_name) {
virReportError(VIR_ERR_NO_DOMAIN_SNAPSHOT,
_("snapshot '%s' does not have a parent"),
snap->def->name);
goto cleanup;
}
parent = virGetDomainSnapshot(snapshot->domain, snap->def->parent_name);
cleanup:
virDomainObjEndAPI(&vm);
return parent;
}
static virDomainSnapshotPtr
qemuDomainSnapshotCurrent(virDomainPtr domain,
unsigned int flags)
{
virDomainObj *vm;
virDomainSnapshotPtr snapshot = NULL;
const char *name;
virCheckFlags(0, NULL);
if (!(vm = qemuDomainObjFromDomain(domain)))
return NULL;
if (virDomainSnapshotCurrentEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
name = virDomainSnapshotGetCurrentName(vm->snapshots);
if (!name) {
virReportError(VIR_ERR_NO_DOMAIN_SNAPSHOT, "%s",
_("the domain does not have a current snapshot"));
goto cleanup;
}
snapshot = virGetDomainSnapshot(domain, name);
cleanup:
virDomainObjEndAPI(&vm);
return snapshot;
}
static char *
qemuDomainSnapshotGetXMLDesc(virDomainSnapshotPtr snapshot,
unsigned int flags)
{
virQEMUDriver *driver = snapshot->domain->conn->privateData;
virDomainObj *vm = NULL;
char *xml = NULL;
virDomainMomentObj *snap = NULL;
char uuidstr[VIR_UUID_STRING_BUFLEN];
virCheckFlags(VIR_DOMAIN_SNAPSHOT_XML_SECURE, NULL);
if (!(vm = qemuDomObjFromSnapshot(snapshot)))
return NULL;
if (virDomainSnapshotGetXMLDescEnsureACL(snapshot->domain->conn, vm->def, flags) < 0)
goto cleanup;
if (!(snap = qemuSnapObjFromSnapshot(vm, snapshot)))
goto cleanup;
virUUIDFormat(snapshot->domain->uuid, uuidstr);
xml = virDomainSnapshotDefFormat(uuidstr, virDomainSnapshotObjGetDef(snap),
driver->xmlopt,
virDomainSnapshotFormatConvertXMLFlags(flags));
cleanup:
virDomainObjEndAPI(&vm);
return xml;
}
static int
qemuDomainSnapshotIsCurrent(virDomainSnapshotPtr snapshot,
unsigned int flags)
{
virDomainObj *vm = NULL;
int ret = -1;
virDomainMomentObj *snap = NULL;
virCheckFlags(0, -1);
if (!(vm = qemuDomObjFromSnapshot(snapshot)))
return -1;
if (virDomainSnapshotIsCurrentEnsureACL(snapshot->domain->conn, vm->def) < 0)
goto cleanup;
if (!(snap = qemuSnapObjFromSnapshot(vm, snapshot)))
goto cleanup;
ret = snap == virDomainSnapshotGetCurrent(vm->snapshots);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainSnapshotHasMetadata(virDomainSnapshotPtr snapshot,
unsigned int flags)
{
virDomainObj *vm = NULL;
int ret = -1;
virDomainMomentObj *snap = NULL;
virCheckFlags(0, -1);
if (!(vm = qemuDomObjFromSnapshot(snapshot)))
return -1;
if (virDomainSnapshotHasMetadataEnsureACL(snapshot->domain->conn, vm->def) < 0)
goto cleanup;
if (!(snap = qemuSnapObjFromSnapshot(vm, snapshot)))
goto cleanup;
/* XXX Someday, we should recognize internal snapshots in qcow2
* images that are not tied to a libvirt snapshot; if we ever do
* that, then we would have a reason to return 0 here. */
ret = 1;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot,
unsigned int flags)
{
virDomainObj *vm = NULL;
int ret = -1;
if (!(vm = qemuDomObjFromSnapshot(snapshot)))
goto cleanup;
if (virDomainRevertToSnapshotEnsureACL(snapshot->domain->conn, vm->def) < 0)
goto cleanup;
ret = qemuSnapshotRevert(vm, snapshot, flags);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainSnapshotDelete(virDomainSnapshotPtr snapshot,
unsigned int flags)
{
virDomainObj *vm = NULL;
int ret = -1;
if (!(vm = qemuDomObjFromSnapshot(snapshot)))
return -1;
if (virDomainSnapshotDeleteEnsureACL(snapshot->domain->conn, vm->def) < 0)
goto cleanup;
ret = qemuSnapshotDelete(vm, snapshot, flags);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static virDomainCheckpointPtr
qemuDomainCheckpointCreateXML(virDomainPtr domain,
const char *xmlDesc,
unsigned int flags)
{
virDomainObj *vm = NULL;
virDomainCheckpointPtr checkpoint = NULL;
if (!(vm = qemuDomainObjFromDomain(domain)))
goto cleanup;
if (virDomainCheckpointCreateXMLEnsureACL(domain->conn, vm->def, flags) < 0)
goto cleanup;
checkpoint = qemuCheckpointCreateXML(domain, vm, xmlDesc, flags);
cleanup:
virDomainObjEndAPI(&vm);
return checkpoint;
}
static int
qemuDomainListAllCheckpoints(virDomainPtr domain,
virDomainCheckpointPtr **chks,
unsigned int flags)
{
virDomainObj *vm = NULL;
int n = -1;
virCheckFlags(VIR_DOMAIN_CHECKPOINT_LIST_ROOTS |
VIR_DOMAIN_CHECKPOINT_LIST_TOPOLOGICAL |
VIR_DOMAIN_CHECKPOINT_FILTERS_ALL, -1);
if (!(vm = qemuDomainObjFromDomain(domain)))
return -1;
if (virDomainListAllCheckpointsEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
n = virDomainListCheckpoints(vm->checkpoints, NULL, domain, chks, flags);
cleanup:
virDomainObjEndAPI(&vm);
return n;
}
static int
qemuDomainCheckpointListAllChildren(virDomainCheckpointPtr checkpoint,
virDomainCheckpointPtr **chks,
unsigned int flags)
{
virDomainObj *vm = NULL;
virDomainMomentObj *chk = NULL;
int n = -1;
virCheckFlags(VIR_DOMAIN_CHECKPOINT_LIST_DESCENDANTS |
VIR_DOMAIN_CHECKPOINT_LIST_TOPOLOGICAL |
VIR_DOMAIN_CHECKPOINT_FILTERS_ALL, -1);
if (!(vm = qemuDomObjFromCheckpoint(checkpoint)))
return -1;
if (virDomainCheckpointListAllChildrenEnsureACL(checkpoint->domain->conn,
vm->def) < 0)
goto cleanup;
if (!(chk = qemuCheckpointObjFromCheckpoint(vm, checkpoint)))
goto cleanup;
n = virDomainListCheckpoints(vm->checkpoints, chk, checkpoint->domain,
chks, flags);
cleanup:
virDomainObjEndAPI(&vm);
return n;
}
static virDomainCheckpointPtr
qemuDomainCheckpointLookupByName(virDomainPtr domain,
const char *name,
unsigned int flags)
{
virDomainObj *vm;
virDomainMomentObj *chk = NULL;
virDomainCheckpointPtr checkpoint = NULL;
virCheckFlags(0, NULL);
if (!(vm = qemuDomainObjFromDomain(domain)))
return NULL;
if (virDomainCheckpointLookupByNameEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
if (!(chk = qemuCheckpointObjFromName(vm, name)))
goto cleanup;
checkpoint = virGetDomainCheckpoint(domain, chk->def->name);
cleanup:
virDomainObjEndAPI(&vm);
return checkpoint;
}
static virDomainCheckpointPtr
qemuDomainCheckpointGetParent(virDomainCheckpointPtr checkpoint,
unsigned int flags)
{
virDomainObj *vm;
virDomainMomentObj *chk = NULL;
virDomainCheckpointPtr parent = NULL;
virCheckFlags(0, NULL);
if (!(vm = qemuDomObjFromCheckpoint(checkpoint)))
return NULL;
if (virDomainCheckpointGetParentEnsureACL(checkpoint->domain->conn, vm->def) < 0)
goto cleanup;
if (!(chk = qemuCheckpointObjFromCheckpoint(vm, checkpoint)))
goto cleanup;
if (!chk->def->parent_name) {
virReportError(VIR_ERR_NO_DOMAIN_CHECKPOINT,
_("checkpoint '%s' does not have a parent"),
chk->def->name);
goto cleanup;
}
parent = virGetDomainCheckpoint(checkpoint->domain, chk->def->parent_name);
cleanup:
virDomainObjEndAPI(&vm);
return parent;
}
static char *
qemuDomainCheckpointGetXMLDesc(virDomainCheckpointPtr checkpoint,
unsigned int flags)
{
virDomainObj *vm = NULL;
char *xml = NULL;
if (!(vm = qemuDomObjFromCheckpoint(checkpoint)))
return NULL;
if (virDomainCheckpointGetXMLDescEnsureACL(checkpoint->domain->conn, vm->def, flags) < 0)
goto cleanup;
xml = qemuCheckpointGetXMLDesc(vm, checkpoint, flags);
cleanup:
virDomainObjEndAPI(&vm);
return xml;
}
static int
qemuDomainCheckpointDelete(virDomainCheckpointPtr checkpoint,
unsigned int flags)
{
virDomainObj *vm = NULL;
int ret = -1;
if (!(vm = qemuDomObjFromCheckpoint(checkpoint)))
return -1;
if (virDomainCheckpointDeleteEnsureACL(checkpoint->domain->conn, vm->def) < 0)
goto cleanup;
ret = qemuCheckpointDelete(vm, checkpoint, flags);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainBackupBegin(virDomainPtr domain,
const char *backupXML,
const char *checkpointXML,
unsigned int flags)
{
virDomainObj *vm = NULL;
int ret = -1;
if (!(vm = qemuDomainObjFromDomain(domain)))
goto cleanup;
if (virDomainBackupBeginEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
ret = qemuBackupBegin(vm, backupXML, checkpointXML, flags);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static char *
qemuDomainBackupGetXMLDesc(virDomainPtr domain,
unsigned int flags)
{
virDomainObj *vm = NULL;
char *ret = NULL;
if (!(vm = qemuDomainObjFromDomain(domain)))
return NULL;
if (virDomainBackupGetXMLDescEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
ret = qemuBackupGetXMLDesc(vm, flags);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainQemuMonitorCommandWithFiles(virDomainPtr domain,
const char *cmd,
unsigned int ninfds,
int *infds,
unsigned int *noutfds,
int **outfds,
char **result,
unsigned int flags)
{
virQEMUDriver *driver = domain->conn->privateData;
virDomainObj *vm = NULL;
int ret = -1;
qemuDomainObjPrivate *priv;
bool hmp;
int fd = -1;
virCheckFlags(VIR_DOMAIN_QEMU_MONITOR_COMMAND_HMP, -1);
/* currently we don't pass back any fds */
if (outfds)
*outfds = NULL;
if (noutfds)
*noutfds = 0;
if (ninfds > 1) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("at most 1 fd can be passed to qemu along with a command"));
return -1;
}
if (ninfds == 1)
fd = infds[0];
if (!(vm = qemuDomainObjFromDomain(domain)))
goto cleanup;
if (virDomainQemuMonitorCommandWithFilesEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
priv = vm->privateData;
qemuDomainObjTaint(driver, vm, VIR_DOMAIN_TAINT_CUSTOM_MONITOR, NULL);
hmp = !!(flags & VIR_DOMAIN_QEMU_MONITOR_COMMAND_HMP);
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorArbitraryCommand(priv->mon, cmd, fd, result, hmp);
qemuDomainObjExitMonitor(vm);
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainQemuMonitorCommand(virDomainPtr domain,
const char *cmd,
char **result,
unsigned int flags)
{
return qemuDomainQemuMonitorCommandWithFiles(domain, cmd, 0, NULL, NULL, NULL, result, flags);
}
static int
qemuDomainOpenConsole(virDomainPtr dom,
const char *dev_name,
virStreamPtr st,
unsigned int flags)
{
virDomainObj *vm = NULL;
int ret = -1;
size_t i;
virDomainChrDef *chr = NULL;
qemuDomainObjPrivate *priv;
virCheckFlags(VIR_DOMAIN_CONSOLE_SAFE |
VIR_DOMAIN_CONSOLE_FORCE, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainOpenConsoleEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
priv = vm->privateData;
if (dev_name) {
for (i = 0; !chr && i < vm->def->nconsoles; i++) {
if (vm->def->consoles[i]->info.alias &&
STREQ(dev_name, vm->def->consoles[i]->info.alias))
chr = vm->def->consoles[i];
}
for (i = 0; !chr && i < vm->def->nserials; i++) {
if (STREQ(dev_name, vm->def->serials[i]->info.alias))
chr = vm->def->serials[i];
}
for (i = 0; !chr && i < vm->def->nparallels; i++) {
if (STREQ(dev_name, vm->def->parallels[i]->info.alias))
chr = vm->def->parallels[i];
}
} else {
if (vm->def->nconsoles)
chr = vm->def->consoles[0];
else if (vm->def->nserials)
chr = vm->def->serials[0];
}
if (!chr) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot find character device %s"),
NULLSTR(dev_name));
goto cleanup;
}
if (chr->source->type != VIR_DOMAIN_CHR_TYPE_PTY) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("character device %s is not using a PTY"),
dev_name ? dev_name : NULLSTR(chr->info.alias));
goto cleanup;
}
/* handle mutually exclusive access to console devices */
ret = virChrdevOpen(priv->devs,
chr->source,
st,
(flags & VIR_DOMAIN_CONSOLE_FORCE) != 0);
if (ret == 1) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("Active console session exists for this domain"));
ret = -1;
}
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainOpenChannel(virDomainPtr dom,
const char *name,
virStreamPtr st,
unsigned int flags)
{
virDomainObj *vm = NULL;
int ret = -1;
size_t i;
virDomainChrDef *chr = NULL;
qemuDomainObjPrivate *priv;
virCheckFlags(VIR_DOMAIN_CHANNEL_FORCE, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainOpenChannelEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
priv = vm->privateData;
if (name) {
for (i = 0; !chr && i < vm->def->nchannels; i++) {
if (STREQ(name, vm->def->channels[i]->info.alias))
chr = vm->def->channels[i];
if (vm->def->channels[i]->targetType == \
VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO &&
STREQ_NULLABLE(name, vm->def->channels[i]->target.name))
chr = vm->def->channels[i];
}
} else {
if (vm->def->nchannels)
chr = vm->def->channels[0];
}
if (!chr) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot find channel %s"),
NULLSTR(name));
goto cleanup;
}
if (chr->source->type != VIR_DOMAIN_CHR_TYPE_UNIX) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("channel %s is not using a UNIX socket"),
name ? name : NULLSTR(chr->info.alias));
goto cleanup;
}
/* handle mutually exclusive access to channel devices */
ret = virChrdevOpen(priv->devs,
chr->source,
st,
(flags & VIR_DOMAIN_CHANNEL_FORCE) != 0);
if (ret == 1) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("Active channel stream exists for this domain"));
ret = -1;
}
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
/* Called while holding the VM job lock, to implement a block job
* abort with pivot; this updates the VM definition as appropriate, on
* either success or failure. */
static int
qemuDomainBlockPivot(virDomainObj *vm,
qemuBlockJobData *job,
virDomainDiskDef *disk)
{
g_autoptr(qemuBlockStorageSourceChainData) chainattachdata = NULL;
int ret = -1;
qemuDomainObjPrivate *priv = vm->privateData;
g_autoptr(virJSONValue) bitmapactions = NULL;
g_autoptr(virJSONValue) reopenactions = NULL;
int rc = 0;
if (job->state != QEMU_BLOCKJOB_STATE_READY) {
virReportError(VIR_ERR_BLOCK_COPY_ACTIVE,
_("block job '%s' not ready for pivot yet"),
job->name);
return -1;
}
switch ((qemuBlockJobType) job->type) {
case QEMU_BLOCKJOB_TYPE_NONE:
case QEMU_BLOCKJOB_TYPE_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("invalid job type '%d'"), job->type);
return -1;
case QEMU_BLOCKJOB_TYPE_PULL:
case QEMU_BLOCKJOB_TYPE_COMMIT:
case QEMU_BLOCKJOB_TYPE_BACKUP:
case QEMU_BLOCKJOB_TYPE_INTERNAL:
case QEMU_BLOCKJOB_TYPE_CREATE:
case QEMU_BLOCKJOB_TYPE_BROKEN:
virReportError(VIR_ERR_OPERATION_INVALID,
_("job type '%s' does not support pivot"),
qemuBlockjobTypeToString(job->type));
return -1;
case QEMU_BLOCKJOB_TYPE_COPY:
if (!job->jobflagsmissing) {
bool shallow = job->jobflags & VIR_DOMAIN_BLOCK_COPY_SHALLOW;
bool reuse = job->jobflags & VIR_DOMAIN_BLOCK_COPY_REUSE_EXT;
bitmapactions = virJSONValueNewArray();
if (qemuMonitorTransactionBitmapAdd(bitmapactions,
disk->mirror->nodeformat,
"libvirt-tmp-activewrite",
false,
false,
0) < 0)
return -1;
/* Open and install the backing chain of 'mirror' late if we can use
* blockdev-snapshot to do it. This is to appease oVirt that wants
* to copy data into the backing chain while the top image is being
* copied shallow */
if (reuse && shallow &&
virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV_SNAPSHOT_ALLOW_WRITE_ONLY) &&
virStorageSourceHasBacking(disk->mirror)) {
if (!(chainattachdata = qemuBuildStorageSourceChainAttachPrepareBlockdev(disk->mirror->backingStore)))
return -1;
reopenactions = virJSONValueNewArray();
if (qemuMonitorTransactionSnapshotBlockdev(reopenactions,
disk->mirror->backingStore->nodeformat,
disk->mirror->nodeformat))
return -1;
}
}
break;
case QEMU_BLOCKJOB_TYPE_ACTIVE_COMMIT:
bitmapactions = virJSONValueNewArray();
if (qemuMonitorTransactionBitmapAdd(bitmapactions,
job->data.commit.base->nodeformat,
"libvirt-tmp-activewrite",
false,
false,
0) < 0)
return -1;
break;
}
qemuDomainObjEnterMonitor(vm);
if (chainattachdata) {
if ((rc = qemuBlockStorageSourceChainAttach(priv->mon, chainattachdata)) == 0) {
/* install backing images on success, or unplug them on failure */
if ((rc = qemuMonitorTransaction(priv->mon, &reopenactions)) != 0)
qemuBlockStorageSourceChainDetach(priv->mon, chainattachdata);
}
}
if (bitmapactions && rc == 0)
ignore_value(qemuMonitorTransaction(priv->mon, &bitmapactions));
if (rc == 0)
ret = qemuMonitorJobComplete(priv->mon, job->name);
qemuDomainObjExitMonitor(vm);
/* The pivot failed. The block job in QEMU remains in the synchronised state */
if (ret < 0)
return -1;
if (disk && disk->mirror)
disk->mirrorState = VIR_DOMAIN_DISK_MIRROR_STATE_PIVOT;
job->state = QEMU_BLOCKJOB_STATE_PIVOTING;
return ret;
}
/* bandwidth in MiB/s per public API. Caller must lock vm beforehand,
* and not access it afterwards. */
static int
qemuDomainBlockPullCommon(virDomainObj *vm,
const char *path,
const char *base,
unsigned long bandwidth,
unsigned int flags)
{
qemuDomainObjPrivate *priv = vm->privateData;
virDomainDiskDef *disk;
virStorageSource *baseSource = NULL;
g_autofree char *backingPath = NULL;
unsigned long long speed = bandwidth;
qemuBlockJobData *job = NULL;
const char *nodebase = NULL;
int ret = -1;
if (flags & VIR_DOMAIN_BLOCK_REBASE_RELATIVE && !base) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("flag VIR_DOMAIN_BLOCK_REBASE_RELATIVE is valid only "
"with non-null base"));
goto cleanup;
}
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (qemuDomainSupportsCheckpointsBlockjobs(vm) < 0)
goto endjob;
if (!(disk = qemuDomainDiskByName(vm->def, path)))
goto endjob;
if (qemuDomainDiskBlockJobIsActive(disk))
goto endjob;
if (!qemuDomainDiskBlockJobIsSupported(vm, disk))
goto endjob;
if (base &&
!(baseSource = virStorageSourceChainLookup(disk->src, disk->src,
base, disk->dst, NULL)))
goto endjob;
if (baseSource) {
if (flags & VIR_DOMAIN_BLOCK_REBASE_RELATIVE) {
if (qemuBlockUpdateRelativeBacking(vm, disk->src, disk->src) < 0)
goto endjob;
if (virStorageSourceGetRelativeBackingPath(disk->src->backingStore,
baseSource,
&backingPath) < 0)
goto endjob;
if (!backingPath) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("can't keep relative backing relationship"));
goto endjob;
}
}
}
/* Convert bandwidth MiB to bytes, if needed */
if (!(flags & VIR_DOMAIN_BLOCK_PULL_BANDWIDTH_BYTES)) {
if (speed > LLONG_MAX >> 20) {
virReportError(VIR_ERR_OVERFLOW,
_("bandwidth must be less than %llu"),
LLONG_MAX >> 20);
goto endjob;
}
speed <<= 20;
}
if (!(job = qemuBlockJobDiskNewPull(vm, disk, baseSource, flags)))
goto endjob;
if (baseSource) {
nodebase = baseSource->nodeformat;
if (!backingPath &&
!(backingPath = qemuBlockGetBackingStoreString(baseSource, false)))
goto endjob;
}
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorBlockStream(priv->mon,
disk->src->nodeformat,
job->name,
nodebase,
backingPath,
speed);
qemuDomainObjExitMonitor(vm);
if (ret < 0)
goto endjob;
qemuBlockJobStarted(job, vm);
endjob:
qemuDomainObjEndJob(vm);
cleanup:
qemuBlockJobStartupFinalize(vm, job);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainBlockJobAbort(virDomainPtr dom,
const char *path,
unsigned int flags)
{
virDomainDiskDef *disk = NULL;
bool pivot = !!(flags & VIR_DOMAIN_BLOCK_JOB_ABORT_PIVOT);
bool async = !!(flags & VIR_DOMAIN_BLOCK_JOB_ABORT_ASYNC);
g_autoptr(qemuBlockJobData) job = NULL;
virDomainObj *vm;
qemuDomainObjPrivate *priv = NULL;
int ret = -1;
virCheckFlags(VIR_DOMAIN_BLOCK_JOB_ABORT_ASYNC |
VIR_DOMAIN_BLOCK_JOB_ABORT_PIVOT, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainBlockJobAbortEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!(disk = qemuDomainDiskByName(vm->def, path)))
goto endjob;
if (!(job = qemuBlockJobDiskGetJob(disk))) {
virReportError(VIR_ERR_INVALID_ARG,
_("disk %s does not have an active block job"), disk->dst);
goto endjob;
}
priv = vm->privateData;
if (job->state == QEMU_BLOCKJOB_STATE_ABORTING ||
job->state == QEMU_BLOCKJOB_STATE_PIVOTING) {
virReportError(VIR_ERR_OPERATION_INVALID,
_("block job on disk '%s' is still being ended"),
disk->dst);
goto endjob;
}
if (!async)
qemuBlockJobSyncBegin(job);
if (pivot) {
if ((ret = qemuDomainBlockPivot(vm, job, disk)) < 0)
goto endjob;
} else {
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorBlockJobCancel(priv->mon, job->name, false);
qemuDomainObjExitMonitor(vm);
if (ret < 0)
goto endjob;
if (disk->mirror)
disk->mirrorState = VIR_DOMAIN_DISK_MIRROR_STATE_ABORT;
job->state = QEMU_BLOCKJOB_STATE_ABORTING;
}
qemuDomainSaveStatus(vm);
if (!async) {
qemuBlockJobUpdate(vm, job, VIR_ASYNC_JOB_NONE);
while (qemuBlockJobIsRunning(job)) {
if (qemuDomainObjWait(vm) < 0) {
ret = -1;
goto endjob;
}
qemuBlockJobUpdate(vm, job, VIR_ASYNC_JOB_NONE);
}
if (pivot &&
job->state == QEMU_BLOCKJOB_STATE_FAILED) {
if (job->errmsg) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("block job '%s' failed while pivoting: %s"),
job->name, job->errmsg);
} else {
virReportError(VIR_ERR_OPERATION_FAILED,
_("block job '%s' failed while pivoting"),
job->name);
}
ret = -1;
goto endjob;
}
}
endjob:
if (job && !async)
qemuBlockJobSyncEnd(vm, job, VIR_ASYNC_JOB_NONE);
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuBlockJobInfoTranslate(qemuMonitorBlockJobInfo *rawInfo,
virDomainBlockJobInfoPtr info,
qemuBlockJobData *job,
bool reportBytes)
{
info->type = job->type;
/* If the job data is no longer present this means that the job already
* disappeared in qemu (pre-blockdev) but libvirt didn't process the
* finishing yet. Fake a incomplete job. */
if (!rawInfo) {
info->cur = 0;
info->end = 1;
return 0;
}
info->cur = rawInfo->cur;
info->end = rawInfo->end;
/* Fix job completeness reporting. If cur == end mgmt
* applications think job is completed. Except when both cur
* and end are zero, in which case qemu hasn't started the
* job yet. */
if (info->cur == 0 && info->end == 0) {
if (rawInfo->ready_present) {
info->end = 1;
if (rawInfo->ready)
info->cur = 1;
}
}
/* If qemu reports that it's not ready yet don't make the job go to
* cur == end as some apps wrote code polling this instead of waiting for
* the ready event */
if (rawInfo->ready_present &&
!rawInfo->ready &&
info->cur == info->end &&
info->cur > 0)
info->cur -= 1;
if (rawInfo->bandwidth && !reportBytes)
rawInfo->bandwidth = VIR_DIV_UP(rawInfo->bandwidth, 1024 * 1024);
info->bandwidth = rawInfo->bandwidth;
if (info->bandwidth != rawInfo->bandwidth) {
virReportError(VIR_ERR_OVERFLOW,
_("bandwidth %llu cannot be represented in result"),
rawInfo->bandwidth);
return -1;
}
return 0;
}
static int
qemuDomainGetBlockJobInfo(virDomainPtr dom,
const char *path,
virDomainBlockJobInfoPtr info,
unsigned int flags)
{
virDomainObj *vm;
virDomainDiskDef *disk;
int ret = -1;
qemuMonitorBlockJobInfo *rawInfo;
g_autoptr(qemuBlockJobData) job = NULL;
g_autoptr(GHashTable) blockjobstats = NULL;
virCheckFlags(VIR_DOMAIN_BLOCK_JOB_INFO_BANDWIDTH_BYTES, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainGetBlockJobInfoEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!(disk = qemuDomainDiskByName(vm->def, path)))
goto endjob;
if (!(job = qemuBlockJobDiskGetJob(disk))) {
ret = 0;
goto endjob;
}
qemuDomainObjEnterMonitor(vm);
blockjobstats = qemuMonitorGetAllBlockJobInfo(qemuDomainGetMonitor(vm), true);
qemuDomainObjExitMonitor(vm);
if (!blockjobstats)
goto endjob;
rawInfo = g_hash_table_lookup(blockjobstats, job->name);
if (qemuBlockJobInfoTranslate(rawInfo, info, job,
flags & VIR_DOMAIN_BLOCK_JOB_INFO_BANDWIDTH_BYTES) < 0)
goto endjob;
ret = 1;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainBlockJobSetSpeed(virDomainPtr dom,
const char *path,
unsigned long bandwidth,
unsigned int flags)
{
virDomainDiskDef *disk;
int ret = -1;
virDomainObj *vm;
unsigned long long speed = bandwidth;
g_autoptr(qemuBlockJobData) job = NULL;
virCheckFlags(VIR_DOMAIN_BLOCK_JOB_SPEED_BANDWIDTH_BYTES, -1);
/* Convert bandwidth MiB to bytes, if needed */
if (!(flags & VIR_DOMAIN_BLOCK_JOB_SPEED_BANDWIDTH_BYTES)) {
if (speed > LLONG_MAX >> 20) {
virReportError(VIR_ERR_OVERFLOW,
_("bandwidth must be less than %llu"),
LLONG_MAX >> 20);
return -1;
}
speed <<= 20;
}
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainBlockJobSetSpeedEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!(disk = qemuDomainDiskByName(vm->def, path)))
goto endjob;
if (!(job = qemuBlockJobDiskGetJob(disk))) {
virReportError(VIR_ERR_INVALID_ARG,
_("disk %s does not have an active block job"), disk->dst);
goto endjob;
}
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorBlockJobSetSpeed(qemuDomainGetMonitor(vm),
job->name,
speed);
qemuDomainObjExitMonitor(vm);
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainBlockCopyValidateMirror(virStorageSource *mirror,
const char *dst,
bool *reuse)
{
virStorageType desttype = virStorageSourceGetActualType(mirror);
struct stat st;
if (!virStorageSourceIsLocalStorage(mirror))
return 0;
if (virStorageSourceAccess(mirror, F_OK) < 0) {
if (errno != ENOENT) {
virReportSystemError(errno, "%s",
_("unable to verify existence of "
"block copy target"));
return -1;
}
if (*reuse || desttype == VIR_STORAGE_TYPE_BLOCK) {
virReportSystemError(errno,
_("missing destination file for disk %s: %s"),
dst, mirror->path);
return -1;
}
} else {
if (virStorageSourceStat(mirror, &st) < 0) {
virReportSystemError(errno,
_("unable to stat block copy target '%s'"),
mirror->path);
return -1;
}
if (S_ISBLK(st.st_mode)) {
/* if the target is a block device, assume that we are reusing it,
* so there are no attempts to create it */
*reuse = true;
} else {
if (st.st_size && !(*reuse)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("external destination file for disk %s already "
"exists and is not a block device: %s"),
dst, mirror->path);
return -1;
}
if (desttype == VIR_STORAGE_TYPE_BLOCK) {
virReportError(VIR_ERR_INVALID_ARG,
_("blockdev flag requested for disk %s, but file "
"'%s' is not a block device"),
dst, mirror->path);
return -1;
}
}
}
return 0;
}
/**
* qemuDomainBlockCopyCommonValidateUserMirrorBackingStore:
* @mirror: target of the block copy
* @flags: block copy API flags
* @blockdev: true if blockdev is used for the VM
*
* Validates whether backingStore of @mirror makes sense according to @flags.
* This makes sure that:
* 1) mirror has a terminator if it isn't supposed to have backing chain
* 2) if shallow copy is requested there is a chain or prepopulated image
* 3) user specified chain is present only when blockdev is used
* 4) if deep copy is requested, there's no chain
*/
static int
qemuDomainBlockCopyCommonValidateUserMirrorBackingStore(virStorageSource *mirror,
bool shallow)
{
if (!virStorageSourceHasBacking(mirror)) {
/* for deep copy there won't be backing chain so we can terminate it */
if (!mirror->backingStore && !shallow)
mirror->backingStore = virStorageSourceNew();
/* When reusing an external image we document that the user must ensure
* that the <mirror> image must expose data as the original image did
* either by providing correct chain or prepopulating the image. This
* means we can't validate this any more regardless of whether shallow
* copy is requested.
*
* For a copy when we are not reusing external image requesting shallow
* is okay and will inherit the original backing chain */
} else {
if (!shallow) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("backingStore of mirror without VIR_DOMAIN_BLOCK_COPY_SHALLOW doesn't make sense"));
return -1;
}
if (qemuDomainStorageSourceValidateDepth(mirror, 0, NULL) < 0)
return -1;
}
return 0;
}
/* bandwidth in bytes/s. Caller must lock vm beforehand, and not
* access mirror afterwards. */
static int
qemuDomainBlockCopyCommon(virDomainObj *vm,
virConnectPtr conn,
const char *path,
virStorageSource *mirrorsrc,
unsigned long long bandwidth,
unsigned int granularity,
unsigned long long buf_size,
unsigned int flags,
bool keepParentLabel)
{
virQEMUDriver *driver = conn->privateData;
qemuDomainObjPrivate *priv = vm->privateData;
virDomainDiskDef *disk = NULL;
int ret = -1;
bool need_unlink = false;
bool need_revoke = false;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
bool mirror_reuse = !!(flags & VIR_DOMAIN_BLOCK_COPY_REUSE_EXT);
bool mirror_shallow = !!(flags & VIR_DOMAIN_BLOCK_COPY_SHALLOW);
bool existing = mirror_reuse;
qemuBlockJobData *job = NULL;
g_autoptr(virStorageSource) mirror = mirrorsrc;
bool supports_create = false;
bool supports_access = false;
bool supports_detect = false;
g_autoptr(qemuBlockStorageSourceChainData) data = NULL;
g_autoptr(qemuBlockStorageSourceChainData) crdata = NULL;
virStorageSource *n;
virStorageSource *mirrorBacking = NULL;
g_autoptr(GHashTable) blockNamedNodeData = NULL;
bool syncWrites = !!(flags & VIR_DOMAIN_BLOCK_COPY_SYNCHRONOUS_WRITES);
int rc = 0;
/* Preliminaries: find the disk we are editing, sanity checks */
virCheckFlags(VIR_DOMAIN_BLOCK_COPY_SHALLOW |
VIR_DOMAIN_BLOCK_COPY_REUSE_EXT |
VIR_DOMAIN_BLOCK_COPY_TRANSIENT_JOB |
VIR_DOMAIN_BLOCK_COPY_SYNCHRONOUS_WRITES, -1);
if (virStorageSourceIsRelative(mirror)) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("absolute path must be used as block copy target"));
return -1;
}
if (bandwidth > LLONG_MAX) {
virReportError(VIR_ERR_INVALID_ARG,
_("bandwidth must be less than "
"'%llu' bytes/s (%llu MiB/s)"),
LLONG_MAX, LLONG_MAX >> 20);
return -1;
}
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
return -1;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (qemuDomainSupportsCheckpointsBlockjobs(vm) < 0)
goto endjob;
if (!(disk = qemuDomainDiskByName(vm->def, path)))
goto endjob;
if (qemuDomainDiskBlockJobIsActive(disk))
goto endjob;
if (!qemuDomainDiskBlockJobIsSupported(vm, disk))
goto endjob;
if (disk->device == VIR_DOMAIN_DISK_DEVICE_LUN &&
virDomainDiskDefSourceLUNValidate(mirror) < 0)
goto endjob;
if (!(flags & VIR_DOMAIN_BLOCK_COPY_TRANSIENT_JOB) &&
vm->persistent) {
/* XXX if qemu ever lets us start a new domain with mirroring
* already active, we can relax this; but for now, the risk of
* 'managedsave' due to libvirt-guests means we can't risk
* this on persistent domains. */
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("domain is not transient"));
goto endjob;
}
/* clear the _SHALLOW flag if there is only one layer */
if (!virStorageSourceHasBacking(disk->src)) {
flags &= ~VIR_DOMAIN_BLOCK_COPY_SHALLOW;
mirror_shallow = false;
}
if (qemuDomainBlockCopyCommonValidateUserMirrorBackingStore(mirror,
mirror_shallow) < 0)
goto endjob;
/* unless the user provides a pre-created file, shallow copy into a raw
* file is not possible */
if (mirror_shallow && !existing && mirror->format == VIR_STORAGE_FILE_RAW) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("shallow copy of disk '%s' into a raw file "
"is not possible"),
disk->dst);
goto endjob;
}
supports_access = virStorageSourceSupportsAccess(mirror) == 1;
supports_create = virStorageSourceSupportsCreate(mirror) == 1;
supports_detect = virStorageSourceSupportsBackingChainTraversal(mirror) == 1;
if (supports_access || supports_create || supports_detect) {
if (qemuDomainStorageFileInit(driver, vm, mirror, NULL) < 0)
goto endjob;
}
if (supports_access &&
qemuDomainBlockCopyValidateMirror(mirror, disk->dst, &existing) < 0)
goto endjob;
if (!mirror->format) {
if (!mirror_reuse) {
mirror->format = disk->src->format;
} else {
/* If the user passed the REUSE_EXT flag, then either they
* can also pass the RAW flag or use XML to tell us the format.
* So if we get here, we assume it is safe for us to probe the
* format from the file that we will be using. */
if (!supports_detect ||
!virStorageSourceIsLocalStorage(mirror) ||
(mirror->format = virStorageFileProbeFormat(mirror->path, cfg->user,
cfg->group)) < 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("reused mirror destination format must be specified"));
goto endjob;
}
}
}
/* When copying a shareable disk we need to make sure that the disk can
* be safely shared, since block copy may change the format. */
if (disk->src->shared && !disk->src->readonly &&
!qemuBlockStorageSourceSupportsConcurrentAccess(mirror)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("can't pivot a shared disk to a storage volume not "
"supporting sharing"));
goto endjob;
}
/* pre-create the image file. This is required so that libvirt can properly
* label the image for access by qemu */
if (!existing) {
if (supports_create) {
if (virStorageSourceCreate(mirror) < 0) {
virReportSystemError(errno, "%s", _("failed to create copy target"));
goto endjob;
}
need_unlink = true;
}
}
if (virStorageSourceInitChainElement(mirror, disk->src,
keepParentLabel) < 0)
goto endjob;
if (mirror->readonly) {
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV_REOPEN)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("copy of read-only disks is not supported"));
goto endjob;
}
mirror->readonly = false;
}
/* we must initialize XML-provided chain prior to detecting to keep semantics
* with VM startup */
for (n = mirror; virStorageSourceIsBacking(n); n = n->backingStore) {
if (qemuDomainPrepareStorageSourceBlockdev(disk, n, priv, cfg) < 0)
goto endjob;
}
/* 'qemuDomainPrepareStorageSourceBlockdev' calls
* 'qemuDomainPrepareDiskSourceData' which propagates 'detect_zeroes'
* into the topmost virStorage source of the disk chain.
* Since 'mirror' has the ambition to replace it we need to propagate
* it into the mirror too. We do it directly as otherwise we'd need
* to modify all callers of 'qemuDomainPrepareStorageSourceBlockdev' */
mirror->detect_zeroes = disk->detect_zeroes;
/* If reusing an external image that includes a backing file but the user
* did not enumerate the chain in the XML we need to detect the chain */
if (mirror_reuse &&
mirror->format >= VIR_STORAGE_FILE_BACKING &&
mirror->backingStore == NULL &&
qemuDomainDetermineDiskChain(driver, vm, disk, mirror, true) < 0)
goto endjob;
if (qemuDomainStorageSourceChainAccessAllow(driver, vm, mirror) < 0)
goto endjob;
need_revoke = true;
if (mirror_reuse) {
/* oVirt depended on late-backing-chain-opening semantics the old
* qemu command had to copy the backing chain data while the top
* level is being copied. To restore this semantics if
* blockdev-reopen is supported defer opening of the backing chain
* of 'mirror' to the pivot step */
if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV_SNAPSHOT_ALLOW_WRITE_ONLY)) {
g_autoptr(virStorageSource) terminator = virStorageSourceNew();
if (!(data = qemuBuildStorageSourceChainAttachPrepareBlockdevTop(mirror,
terminator)))
goto endjob;
} else {
if (!(data = qemuBuildStorageSourceChainAttachPrepareBlockdev(mirror)))
goto endjob;
}
} else {
if (!(blockNamedNodeData = qemuBlockGetNamedNodeData(vm, VIR_ASYNC_JOB_NONE)))
goto endjob;
if (qemuBlockStorageSourceCreateDetectSize(blockNamedNodeData,
mirror, disk->src))
goto endjob;
if (mirror_shallow) {
/* if external backing store is populated we'll need to open it */
if (virStorageSourceHasBacking(mirror)) {
if (!(data = qemuBuildStorageSourceChainAttachPrepareBlockdev(mirror->backingStore)))
goto endjob;
mirrorBacking = mirror->backingStore;
} else {
/* backing store of original image will be reused, but the
* new image must refer to it in the metadata */
mirrorBacking = disk->src->backingStore;
}
} else {
mirrorBacking = mirror->backingStore;
}
if (!(crdata = qemuBuildStorageSourceChainAttachPrepareBlockdevTop(mirror,
mirrorBacking)))
goto endjob;
}
if (data) {
qemuDomainObjEnterMonitor(vm);
rc = qemuBlockStorageSourceChainAttach(priv->mon, data);
qemuDomainObjExitMonitor(vm);
if (rc < 0)
goto endjob;
}
if (crdata &&
qemuBlockStorageSourceCreate(vm, mirror, mirrorBacking, mirror->backingStore,
crdata->srcdata[0], VIR_ASYNC_JOB_NONE) < 0)
goto endjob;
if (!(job = qemuBlockJobDiskNewCopy(vm, disk, mirror, mirror_shallow, mirror_reuse, flags)))
goto endjob;
disk->mirrorState = VIR_DOMAIN_DISK_MIRROR_STATE_NONE;
/* Actually start the mirroring */
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorBlockdevMirror(priv->mon, job->name, true,
qemuDomainDiskGetTopNodename(disk),
mirror->nodeformat, bandwidth,
granularity, buf_size, mirror_shallow,
syncWrites);
virDomainAuditDisk(vm, NULL, mirror, "mirror", ret >= 0);
qemuDomainObjExitMonitor(vm);
if (ret < 0) {
qemuDomainStorageSourceChainAccessRevoke(driver, vm, mirror);
goto endjob;
}
/* Update vm in place to match changes. */
need_unlink = false;
virStorageSourceDeinit(mirror);
disk->mirror = g_steal_pointer(&mirror);
disk->mirrorJob = VIR_DOMAIN_BLOCK_JOB_TYPE_COPY;
qemuBlockJobStarted(job, vm);
endjob:
if (ret < 0 &&
virDomainObjIsActive(vm)) {
if (data || crdata) {
qemuDomainObjEnterMonitor(vm);
if (data)
qemuBlockStorageSourceChainDetach(priv->mon, data);
if (crdata)
qemuBlockStorageSourceAttachRollback(priv->mon, crdata->srcdata[0]);
qemuDomainObjExitMonitor(vm);
}
if (need_revoke)
qemuDomainStorageSourceChainAccessRevoke(driver, vm, mirror);
}
if (need_unlink && virStorageSourceUnlink(mirror) < 0)
VIR_WARN("%s", _("unable to remove just-created copy target"));
virStorageSourceDeinit(mirror);
qemuDomainObjEndJob(vm);
qemuBlockJobStartupFinalize(vm, job);
return ret;
}
static int
qemuDomainBlockRebase(virDomainPtr dom, const char *path, const char *base,
unsigned long bandwidth, unsigned int flags)
{
virDomainObj *vm;
int ret = -1;
unsigned long long speed = bandwidth;
g_autoptr(virStorageSource) dest = NULL;
virCheckFlags(VIR_DOMAIN_BLOCK_REBASE_SHALLOW |
VIR_DOMAIN_BLOCK_REBASE_REUSE_EXT |
VIR_DOMAIN_BLOCK_REBASE_COPY |
VIR_DOMAIN_BLOCK_REBASE_COPY_RAW |
VIR_DOMAIN_BLOCK_REBASE_RELATIVE |
VIR_DOMAIN_BLOCK_REBASE_COPY_DEV |
VIR_DOMAIN_BLOCK_REBASE_BANDWIDTH_BYTES, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainBlockRebaseEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
/* For normal rebase (enhanced blockpull), the common code handles
* everything, including vm cleanup. */
if (!(flags & VIR_DOMAIN_BLOCK_REBASE_COPY))
return qemuDomainBlockPullCommon(vm, path, base, bandwidth, flags);
/* If we got here, we are doing a block copy rebase. */
dest = virStorageSourceNew();
if (flags & VIR_DOMAIN_BLOCK_REBASE_COPY_DEV)
dest->type = VIR_STORAGE_TYPE_BLOCK;
else
dest->type = VIR_STORAGE_TYPE_FILE;
dest->path = g_strdup(base);
if (flags & VIR_DOMAIN_BLOCK_REBASE_COPY_RAW)
dest->format = VIR_STORAGE_FILE_RAW;
/* Convert bandwidth MiB to bytes, if necessary */
if (!(flags & VIR_DOMAIN_BLOCK_REBASE_BANDWIDTH_BYTES)) {
if (speed > LLONG_MAX >> 20) {
virReportError(VIR_ERR_OVERFLOW,
_("bandwidth must be less than %llu"),
LLONG_MAX >> 20);
goto cleanup;
}
speed <<= 20;
}
/* XXX: If we are doing a shallow copy but not reusing an external
* file, we should attempt to pre-create the destination with a
* relative backing chain instead of qemu's default of absolute */
if (flags & VIR_DOMAIN_BLOCK_REBASE_RELATIVE) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("Relative backing during copy not supported yet"));
goto cleanup;
}
/* We rely on the fact that VIR_DOMAIN_BLOCK_REBASE_SHALLOW
* and VIR_DOMAIN_BLOCK_REBASE_REUSE_EXT map to the same values
* as for block copy. */
flags &= (VIR_DOMAIN_BLOCK_REBASE_SHALLOW |
VIR_DOMAIN_BLOCK_REBASE_REUSE_EXT);
ret = qemuDomainBlockCopyCommon(vm, dom->conn, path, dest,
speed, 0, 0, flags, true);
dest = NULL;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainBlockCopy(virDomainPtr dom, const char *disk, const char *destxml,
virTypedParameterPtr params, int nparams,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
int ret = -1;
unsigned long long bandwidth = 0;
unsigned int granularity = 0;
unsigned long long buf_size = 0;
virStorageSource *dest = NULL;
size_t i;
virCheckFlags(VIR_DOMAIN_BLOCK_COPY_SHALLOW |
VIR_DOMAIN_BLOCK_COPY_REUSE_EXT |
VIR_DOMAIN_BLOCK_COPY_TRANSIENT_JOB |
VIR_DOMAIN_BLOCK_COPY_SYNCHRONOUS_WRITES, -1);
if (virTypedParamsValidate(params, nparams,
VIR_DOMAIN_BLOCK_COPY_BANDWIDTH,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_BLOCK_COPY_GRANULARITY,
VIR_TYPED_PARAM_UINT,
VIR_DOMAIN_BLOCK_COPY_BUF_SIZE,
VIR_TYPED_PARAM_ULLONG,
NULL) < 0)
return -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainBlockCopyEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
for (i = 0; i < nparams; i++) {
virTypedParameterPtr param = &params[i];
/* Typed params (wisely) refused to expose unsigned long, but
* back-compat demands that we stick with a maximum of
* unsigned long bandwidth in MiB/s, while our value is
* unsigned long long in bytes/s. Hence, we have to do
* overflow detection if this is a 32-bit server handling a
* 64-bit client. */
if (STREQ(param->field, VIR_DOMAIN_BLOCK_COPY_BANDWIDTH)) {
if (sizeof(unsigned long)< sizeof(bandwidth) &&
param->value.ul > ULONG_MAX * (1ULL << 20)) {
virReportError(VIR_ERR_OVERFLOW,
_("bandwidth must be less than %llu bytes"),
ULONG_MAX * (1ULL << 20));
goto cleanup;
}
bandwidth = param->value.ul;
} else if (STREQ(param->field, VIR_DOMAIN_BLOCK_COPY_GRANULARITY)) {
if (param->value.ui != VIR_ROUND_UP_POWER_OF_TWO(param->value.ui)) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("granularity must be power of 2"));
goto cleanup;
}
granularity = param->value.ui;
} else if (STREQ(param->field, VIR_DOMAIN_BLOCK_COPY_BUF_SIZE)) {
buf_size = param->value.ul;
}
}
if (!(dest = virDomainDiskDefParseSource(destxml, driver->xmlopt,
VIR_DOMAIN_DEF_PARSE_INACTIVE)))
goto cleanup;
ret = qemuDomainBlockCopyCommon(vm, dom->conn, disk, dest, bandwidth,
granularity, buf_size, flags, false);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainBlockPull(virDomainPtr dom, const char *path, unsigned long bandwidth,
unsigned int flags)
{
virDomainObj *vm;
virCheckFlags(VIR_DOMAIN_BLOCK_PULL_BANDWIDTH_BYTES, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainBlockPullEnsureACL(dom->conn, vm->def) < 0) {
virDomainObjEndAPI(&vm);
return -1;
}
/* qemuDomainBlockPullCommon consumes the reference on @vm */
return qemuDomainBlockPullCommon(vm, path, NULL, bandwidth, flags);
}
static int
qemuDomainBlockCommit(virDomainPtr dom,
const char *path,
const char *base,
const char *top,
unsigned long bandwidth,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
qemuDomainObjPrivate *priv;
virDomainObj *vm = NULL;
int ret = -1;
virDomainDiskDef *disk = NULL;
virStorageSource *topSource;
virStorageSource *baseSource = NULL;
virStorageSource *top_parent = NULL;
bool clean_access = false;
g_autofree char *backingPath = NULL;
unsigned long long speed = bandwidth;
qemuBlockJobData *job = NULL;
g_autoptr(virStorageSource) mirror = NULL;
virCheckFlags(VIR_DOMAIN_BLOCK_COMMIT_SHALLOW |
VIR_DOMAIN_BLOCK_COMMIT_ACTIVE |
VIR_DOMAIN_BLOCK_COMMIT_RELATIVE |
VIR_DOMAIN_BLOCK_COMMIT_DELETE |
VIR_DOMAIN_BLOCK_COMMIT_BANDWIDTH_BYTES, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
priv = vm->privateData;
if (virDomainBlockCommitEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
/* Convert bandwidth MiB to bytes, if necessary */
if (!(flags & VIR_DOMAIN_BLOCK_COMMIT_BANDWIDTH_BYTES)) {
if (speed > LLONG_MAX >> 20) {
virReportError(VIR_ERR_OVERFLOW,
_("bandwidth must be less than %llu"),
LLONG_MAX >> 20);
goto endjob;
}
speed <<= 20;
}
if (!(disk = qemuDomainDiskByName(vm->def, path)))
goto endjob;
if (!qemuDomainDiskBlockJobIsSupported(vm, disk))
goto endjob;
if (virStorageSourceIsEmpty(disk->src)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("disk %s has no source file to be committed"),
disk->dst);
goto endjob;
}
if (qemuDomainDiskBlockJobIsActive(disk))
goto endjob;
if (qemuDomainSupportsCheckpointsBlockjobs(vm) < 0)
goto endjob;
if (!top || STREQ(top, disk->dst))
topSource = disk->src;
else if (!(topSource = virStorageSourceChainLookup(disk->src, NULL, top,
disk->dst, &top_parent)))
goto endjob;
if (topSource == disk->src) {
/* XXX Should we auto-pivot when COMMIT_ACTIVE is not specified? */
if (!(flags & VIR_DOMAIN_BLOCK_COMMIT_ACTIVE)) {
virReportError(VIR_ERR_INVALID_ARG,
_("commit of '%s' active layer requires active flag"),
disk->dst);
goto endjob;
}
} else if (flags & VIR_DOMAIN_BLOCK_COMMIT_ACTIVE) {
virReportError(VIR_ERR_INVALID_ARG,
_("active commit requested but '%s' is not active"),
topSource->path);
goto endjob;
}
if (!virStorageSourceHasBacking(topSource)) {
virReportError(VIR_ERR_INVALID_ARG,
_("top '%s' in chain for '%s' has no backing file"),
topSource->path, path);
goto endjob;
}
if (!base && (flags & VIR_DOMAIN_BLOCK_COMMIT_SHALLOW))
baseSource = topSource->backingStore;
else if (!(baseSource = virStorageSourceChainLookup(disk->src, topSource,
base, disk->dst, NULL)))
goto endjob;
if ((flags & VIR_DOMAIN_BLOCK_COMMIT_SHALLOW) &&
baseSource != topSource->backingStore) {
virReportError(VIR_ERR_INVALID_ARG,
_("base '%s' is not immediately below '%s' in chain "
"for '%s'"),
base, topSource->path, path);
goto endjob;
}
/* For an active commit, clone enough of the base to act as the mirror */
if (topSource == disk->src) {
if (!(mirror = virStorageSourceCopy(baseSource, false)))
goto endjob;
if (virStorageSourceInitChainElement(mirror,
disk->src,
true) < 0)
goto endjob;
}
if (flags & VIR_DOMAIN_BLOCK_COMMIT_RELATIVE &&
topSource != disk->src) {
if (top_parent &&
qemuBlockUpdateRelativeBacking(vm, top_parent, disk->src) < 0)
goto endjob;
if (virStorageSourceGetRelativeBackingPath(topSource, baseSource,
&backingPath) < 0)
goto endjob;
if (!backingPath) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("can't keep relative backing relationship"));
goto endjob;
}
}
/* For the commit to succeed, we must allow qemu to open both the
* 'base' image and the parent of 'top' as read/write; 'top' might
* not have a parent, or might already be read-write. XXX It
* would also be nice to revert 'base' to read-only, as well as
* revoke access to files removed from the chain, when the commit
* operation succeeds, but doing that requires tracking the
* operation in XML across libvirtd restarts. */
clean_access = true;
if (qemuDomainStorageSourceAccessAllow(driver, vm, baseSource,
false, false, false) < 0)
goto endjob;
if (top_parent && top_parent != disk->src) {
/* While top_parent is topmost image, we don't need to remember its
* owner as it will be overwritten upon finishing the commit. Hence,
* pass chainTop = false. */
if (qemuDomainStorageSourceAccessAllow(driver, vm, top_parent,
false, false, false) < 0)
goto endjob;
}
if (!(job = qemuBlockJobDiskNewCommit(vm, disk, top_parent, topSource,
baseSource,
flags & VIR_DOMAIN_BLOCK_COMMIT_DELETE,
flags)))
goto endjob;
disk->mirrorState = VIR_DOMAIN_DISK_MIRROR_STATE_NONE;
if (!backingPath && top_parent &&
!(backingPath = qemuBlockGetBackingStoreString(baseSource, false)))
goto endjob;
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorBlockCommit(priv->mon,
qemuDomainDiskGetTopNodename(disk),
job->name,
topSource->nodeformat,
baseSource->nodeformat,
backingPath, speed);
qemuDomainObjExitMonitor(vm);
if (ret < 0)
goto endjob;
if (mirror) {
disk->mirror = g_steal_pointer(&mirror);
disk->mirrorJob = VIR_DOMAIN_BLOCK_JOB_TYPE_ACTIVE_COMMIT;
}
qemuBlockJobStarted(job, vm);
endjob:
if (ret < 0 && clean_access) {
virErrorPtr orig_err;
virErrorPreserveLast(&orig_err);
/* Revert access to read-only, if possible. */
qemuDomainStorageSourceAccessAllow(driver, vm, baseSource,
true, false, false);
if (top_parent && top_parent != disk->src)
qemuDomainStorageSourceAccessAllow(driver, vm, top_parent,
true, false, false);
virErrorRestore(&orig_err);
}
qemuBlockJobStartupFinalize(vm, job);
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainOpenGraphics(virDomainPtr dom,
unsigned int idx,
int fd,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
int ret = -1;
qemuDomainObjPrivate *priv;
const char *protocol;
virCheckFlags(VIR_DOMAIN_OPEN_GRAPHICS_SKIPAUTH, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainOpenGraphicsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
priv = vm->privateData;
if (idx >= vm->def->ngraphics) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("No graphics backend with index %d"), idx);
goto endjob;
}
switch (vm->def->graphics[idx]->type) {
case VIR_DOMAIN_GRAPHICS_TYPE_VNC:
protocol = "vnc";
break;
case VIR_DOMAIN_GRAPHICS_TYPE_SPICE:
protocol = "spice";
break;
case VIR_DOMAIN_GRAPHICS_TYPE_DBUS:
protocol = "@dbus-display";
break;
case VIR_DOMAIN_GRAPHICS_TYPE_SDL:
case VIR_DOMAIN_GRAPHICS_TYPE_RDP:
case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP:
case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Can only open VNC, SPICE or D-Bus p2p graphics backends, not %s"),
virDomainGraphicsTypeToString(vm->def->graphics[idx]->type));
goto endjob;
case VIR_DOMAIN_GRAPHICS_TYPE_LAST:
default:
virReportEnumRangeError(virDomainGraphicsType,
vm->def->graphics[idx]->type);
goto endjob;
}
if (qemuSecuritySetImageFDLabel(driver->securityManager, vm->def, fd) < 0)
goto endjob;
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorOpenGraphics(priv->mon, protocol, fd, "graphicsfd",
(flags & VIR_DOMAIN_OPEN_GRAPHICS_SKIPAUTH) != 0);
qemuDomainObjExitMonitor(vm);
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainOpenGraphicsFD(virDomainPtr dom,
unsigned int idx,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
int ret = -1;
qemuDomainObjPrivate *priv;
const char *protocol;
int pair[2] = {-1, -1};
virCheckFlags(VIR_DOMAIN_OPEN_GRAPHICS_SKIPAUTH, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainOpenGraphicsFdEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
priv = vm->privateData;
if (idx >= vm->def->ngraphics) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("No graphics backend with index %d"), idx);
goto cleanup;
}
switch (vm->def->graphics[idx]->type) {
case VIR_DOMAIN_GRAPHICS_TYPE_VNC:
protocol = "vnc";
break;
case VIR_DOMAIN_GRAPHICS_TYPE_SPICE:
protocol = "spice";
break;
case VIR_DOMAIN_GRAPHICS_TYPE_DBUS:
protocol = "@dbus-display";
break;
case VIR_DOMAIN_GRAPHICS_TYPE_SDL:
case VIR_DOMAIN_GRAPHICS_TYPE_RDP:
case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP:
case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Can only open VNC, SPICE or D-Bus p2p graphics backends, not %s"),
virDomainGraphicsTypeToString(vm->def->graphics[idx]->type));
goto cleanup;
case VIR_DOMAIN_GRAPHICS_TYPE_LAST:
default:
virReportEnumRangeError(virDomainGraphicsType,
vm->def->graphics[idx]->type);
goto cleanup;
}
if (qemuSecuritySetSocketLabel(driver->securityManager, vm->def) < 0)
goto cleanup;
if (socketpair(PF_UNIX, SOCK_STREAM, 0, pair) < 0)
goto cleanup;
if (qemuSecurityClearSocketLabel(driver->securityManager, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorOpenGraphics(priv->mon, protocol, pair[1], "graphicsfd",
(flags & VIR_DOMAIN_OPEN_GRAPHICS_SKIPAUTH));
qemuDomainObjExitMonitor(vm);
qemuDomainObjEndJob(vm);
if (ret < 0)
goto cleanup;
ret = pair[0];
pair[0] = -1;
cleanup:
VIR_FORCE_CLOSE(pair[0]);
VIR_FORCE_CLOSE(pair[1]);
virDomainObjEndAPI(&vm);
return ret;
}
typedef enum {
QEMU_BLOCK_IOTUNE_SET_BYTES = 1 << 0,
QEMU_BLOCK_IOTUNE_SET_IOPS = 1 << 1,
QEMU_BLOCK_IOTUNE_SET_BYTES_MAX = 1 << 2,
QEMU_BLOCK_IOTUNE_SET_IOPS_MAX = 1 << 3,
QEMU_BLOCK_IOTUNE_SET_SIZE_IOPS = 1 << 4,
QEMU_BLOCK_IOTUNE_SET_GROUP_NAME = 1 << 5,
QEMU_BLOCK_IOTUNE_SET_BYTES_MAX_LENGTH = 1 << 6,
QEMU_BLOCK_IOTUNE_SET_IOPS_MAX_LENGTH = 1 << 7,
} qemuBlockIoTuneSetFlags;
static bool
qemuDomainDiskBlockIoTuneIsSupported(virStorageSource *src)
{
if (virStorageSourceGetActualType(src) == VIR_STORAGE_TYPE_VHOST_USER) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("a block I/O throttling is not supported for vhostuser disk"));
return false;
}
return true;
}
/* If the user didn't specify bytes limits, inherit previous values;
* likewise if the user didn't specify iops limits. */
static int
qemuDomainSetBlockIoTuneDefaults(virDomainBlockIoTuneInfo *newinfo,
virDomainBlockIoTuneInfo *oldinfo,
qemuBlockIoTuneSetFlags set_fields)
{
#define SET_IOTUNE_DEFAULTS(BOOL, FIELD) \
if (!(set_fields & QEMU_BLOCK_IOTUNE_SET_##BOOL)) { \
newinfo->total_##FIELD = oldinfo->total_##FIELD; \
newinfo->read_##FIELD = oldinfo->read_##FIELD; \
newinfo->write_##FIELD = oldinfo->write_##FIELD; \
}
SET_IOTUNE_DEFAULTS(BYTES, bytes_sec);
SET_IOTUNE_DEFAULTS(BYTES_MAX, bytes_sec_max);
SET_IOTUNE_DEFAULTS(IOPS, iops_sec);
SET_IOTUNE_DEFAULTS(IOPS_MAX, iops_sec_max);
#undef SET_IOTUNE_DEFAULTS
if (!(set_fields & QEMU_BLOCK_IOTUNE_SET_SIZE_IOPS))
newinfo->size_iops_sec = oldinfo->size_iops_sec;
if (!(set_fields & QEMU_BLOCK_IOTUNE_SET_GROUP_NAME))
newinfo->group_name = g_strdup(oldinfo->group_name);
/* The length field is handled a bit differently. If not defined/set,
* QEMU will default these to 0 or 1 depending on whether something in
* the same family is set or not.
*
* Similar to other values, if nothing in the family is defined/set,
* then take whatever is in the oldinfo.
*
* To clear an existing limit, a 0 is provided; however, passing that
* 0 onto QEMU if there's a family value defined/set (or defaulted)
* will cause an error. So, to mimic that, if our oldinfo was set and
* our newinfo is clearing, then set max_length based on whether we
* have a value in the family set/defined. */
#define SET_MAX_LENGTH(BOOL, FIELD) \
if (!(set_fields & QEMU_BLOCK_IOTUNE_SET_##BOOL)) \
newinfo->FIELD##_max_length = oldinfo->FIELD##_max_length; \
else if ((set_fields & QEMU_BLOCK_IOTUNE_SET_##BOOL) && \
oldinfo->FIELD##_max_length && \
!newinfo->FIELD##_max_length) \
newinfo->FIELD##_max_length = (newinfo->FIELD || \
newinfo->FIELD##_max) ? 1 : 0;
SET_MAX_LENGTH(BYTES_MAX_LENGTH, total_bytes_sec);
SET_MAX_LENGTH(BYTES_MAX_LENGTH, read_bytes_sec);
SET_MAX_LENGTH(BYTES_MAX_LENGTH, write_bytes_sec);
SET_MAX_LENGTH(IOPS_MAX_LENGTH, total_iops_sec);
SET_MAX_LENGTH(IOPS_MAX_LENGTH, read_iops_sec);
SET_MAX_LENGTH(IOPS_MAX_LENGTH, write_iops_sec);
#undef SET_MAX_LENGTH
return 0;
}
static void
qemuDomainSetGroupBlockIoTune(virDomainDef *def,
virDomainBlockIoTuneInfo *iotune)
{
size_t i;
if (!iotune->group_name)
return;
for (i = 0; i < def->ndisks; i++) {
virDomainDiskDef *d = def->disks[i];
if (STREQ_NULLABLE(d->blkdeviotune.group_name, iotune->group_name)) {
VIR_FREE(d->blkdeviotune.group_name);
virDomainBlockIoTuneInfoCopy(iotune, &d->blkdeviotune);
}
}
}
static virDomainBlockIoTuneInfo *
qemuDomainFindGroupBlockIoTune(virDomainDef *def,
virDomainDiskDef *disk,
virDomainBlockIoTuneInfo *newiotune)
{
size_t i;
if (!newiotune->group_name ||
STREQ_NULLABLE(disk->blkdeviotune.group_name, newiotune->group_name))
return &disk->blkdeviotune;
for (i = 0; i < def->ndisks; i++) {
virDomainDiskDef *d = def->disks[i];
if (STREQ_NULLABLE(newiotune->group_name, d->blkdeviotune.group_name))
return &d->blkdeviotune;
}
return &disk->blkdeviotune;
}
static int
qemuDomainCheckBlockIoTuneReset(virDomainDiskDef *disk,
virDomainBlockIoTuneInfo *newiotune)
{
if (virDomainBlockIoTuneInfoHasAny(newiotune))
return 0;
if (newiotune->group_name &&
STRNEQ_NULLABLE(newiotune->group_name, disk->blkdeviotune.group_name)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("creating a new group/updating existing with all"
" tune parameters zero is not supported"));
return -1;
}
/* all zero means remove any throttling and remove from group for qemu */
VIR_FREE(newiotune->group_name);
return 0;
}
static int
qemuDomainSetBlockIoTune(virDomainPtr dom,
const char *path,
virTypedParameterPtr params,
int nparams,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
qemuDomainObjPrivate *priv;
virDomainDef *def = NULL;
virDomainDef *persistentDef = NULL;
virDomainBlockIoTuneInfo info;
virDomainBlockIoTuneInfo conf_info;
g_autofree char *drivealias = NULL;
const char *qdevid = NULL;
int ret = -1;
size_t i;
virDomainDiskDef *conf_disk = NULL;
virDomainDiskDef *disk;
qemuBlockIoTuneSetFlags set_fields = 0;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virObjectEvent *event = NULL;
virTypedParameterPtr eventParams = NULL;
int eventNparams = 0;
int eventMaxparams = 0;
virDomainBlockIoTuneInfo *cur_info;
virDomainBlockIoTuneInfo *conf_cur_info;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (virTypedParamsValidate(params, nparams,
VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_BYTES_SEC,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_BLOCK_IOTUNE_READ_BYTES_SEC,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_BLOCK_IOTUNE_WRITE_BYTES_SEC,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_IOPS_SEC,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_BLOCK_IOTUNE_READ_IOPS_SEC,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_BLOCK_IOTUNE_WRITE_IOPS_SEC,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_BYTES_SEC_MAX,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_BLOCK_IOTUNE_READ_BYTES_SEC_MAX,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_BLOCK_IOTUNE_WRITE_BYTES_SEC_MAX,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_IOPS_SEC_MAX,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_BLOCK_IOTUNE_READ_IOPS_SEC_MAX,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_BLOCK_IOTUNE_WRITE_IOPS_SEC_MAX,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_BLOCK_IOTUNE_SIZE_IOPS_SEC,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_BLOCK_IOTUNE_GROUP_NAME,
VIR_TYPED_PARAM_STRING,
VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_BYTES_SEC_MAX_LENGTH,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_BLOCK_IOTUNE_READ_BYTES_SEC_MAX_LENGTH,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_BLOCK_IOTUNE_WRITE_BYTES_SEC_MAX_LENGTH,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_IOPS_SEC_MAX_LENGTH,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_BLOCK_IOTUNE_READ_IOPS_SEC_MAX_LENGTH,
VIR_TYPED_PARAM_ULLONG,
VIR_DOMAIN_BLOCK_IOTUNE_WRITE_IOPS_SEC_MAX_LENGTH,
VIR_TYPED_PARAM_ULLONG,
NULL) < 0)
return -1;
memset(&info, 0, sizeof(info));
memset(&conf_info, 0, sizeof(conf_info));
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainSetBlockIoTuneEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
cfg = virQEMUDriverGetConfig(driver);
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
priv = vm->privateData;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
if (virTypedParamsAddString(&eventParams, &eventNparams, &eventMaxparams,
VIR_DOMAIN_TUNABLE_BLKDEV_DISK, path) < 0)
goto endjob;
#define SET_IOTUNE_FIELD(FIELD, BOOL, CONST) \
if (STREQ(param->field, VIR_DOMAIN_BLOCK_IOTUNE_##CONST)) { \
info.FIELD = param->value.ul; \
set_fields |= QEMU_BLOCK_IOTUNE_SET_##BOOL; \
if (virTypedParamsAddULLong(&eventParams, &eventNparams, \
&eventMaxparams, \
VIR_DOMAIN_TUNABLE_BLKDEV_##CONST, \
param->value.ul) < 0) \
goto endjob; \
continue; \
}
for (i = 0; i < nparams; i++) {
virTypedParameterPtr param = &params[i];
if (param->value.ul > QEMU_BLOCK_IOTUNE_MAX) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED,
_("block I/O throttle limit value must"
" be no more than %llu"), QEMU_BLOCK_IOTUNE_MAX);
goto endjob;
}
SET_IOTUNE_FIELD(total_bytes_sec, BYTES, TOTAL_BYTES_SEC);
SET_IOTUNE_FIELD(read_bytes_sec, BYTES, READ_BYTES_SEC);
SET_IOTUNE_FIELD(write_bytes_sec, BYTES, WRITE_BYTES_SEC);
SET_IOTUNE_FIELD(total_iops_sec, IOPS, TOTAL_IOPS_SEC);
SET_IOTUNE_FIELD(read_iops_sec, IOPS, READ_IOPS_SEC);
SET_IOTUNE_FIELD(write_iops_sec, IOPS, WRITE_IOPS_SEC);
SET_IOTUNE_FIELD(total_bytes_sec_max, BYTES_MAX,
TOTAL_BYTES_SEC_MAX);
SET_IOTUNE_FIELD(read_bytes_sec_max, BYTES_MAX,
READ_BYTES_SEC_MAX);
SET_IOTUNE_FIELD(write_bytes_sec_max, BYTES_MAX,
WRITE_BYTES_SEC_MAX);
SET_IOTUNE_FIELD(total_iops_sec_max, IOPS_MAX,
TOTAL_IOPS_SEC_MAX);
SET_IOTUNE_FIELD(read_iops_sec_max, IOPS_MAX,
READ_IOPS_SEC_MAX);
SET_IOTUNE_FIELD(write_iops_sec_max, IOPS_MAX,
WRITE_IOPS_SEC_MAX);
SET_IOTUNE_FIELD(size_iops_sec, SIZE_IOPS, SIZE_IOPS_SEC);
/* NB: Cannot use macro since this is a value.s not a value.ul */
if (STREQ(param->field, VIR_DOMAIN_BLOCK_IOTUNE_GROUP_NAME)) {
info.group_name = g_strdup(param->value.s);
set_fields |= QEMU_BLOCK_IOTUNE_SET_GROUP_NAME;
if (virTypedParamsAddString(&eventParams, &eventNparams,
&eventMaxparams,
VIR_DOMAIN_TUNABLE_BLKDEV_GROUP_NAME,
param->value.s) < 0)
goto endjob;
continue;
}
SET_IOTUNE_FIELD(total_bytes_sec_max_length, BYTES_MAX_LENGTH,
TOTAL_BYTES_SEC_MAX_LENGTH);
SET_IOTUNE_FIELD(read_bytes_sec_max_length, BYTES_MAX_LENGTH,
READ_BYTES_SEC_MAX_LENGTH);
SET_IOTUNE_FIELD(write_bytes_sec_max_length, BYTES_MAX_LENGTH,
WRITE_BYTES_SEC_MAX_LENGTH);
SET_IOTUNE_FIELD(total_iops_sec_max_length, IOPS_MAX_LENGTH,
TOTAL_IOPS_SEC_MAX_LENGTH);
SET_IOTUNE_FIELD(read_iops_sec_max_length, IOPS_MAX_LENGTH,
READ_IOPS_SEC_MAX_LENGTH);
SET_IOTUNE_FIELD(write_iops_sec_max_length, IOPS_MAX_LENGTH,
WRITE_IOPS_SEC_MAX_LENGTH);
}
#undef SET_IOTUNE_FIELD
if ((info.total_bytes_sec && info.read_bytes_sec) ||
(info.total_bytes_sec && info.write_bytes_sec)) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("total and read/write of bytes_sec "
"cannot be set at the same time"));
goto endjob;
}
if ((info.total_iops_sec && info.read_iops_sec) ||
(info.total_iops_sec && info.write_iops_sec)) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("total and read/write of iops_sec "
"cannot be set at the same time"));
goto endjob;
}
if ((info.total_bytes_sec_max && info.read_bytes_sec_max) ||
(info.total_bytes_sec_max && info.write_bytes_sec_max)) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("total and read/write of bytes_sec_max "
"cannot be set at the same time"));
goto endjob;
}
if ((info.total_iops_sec_max && info.read_iops_sec_max) ||
(info.total_iops_sec_max && info.write_iops_sec_max)) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("total and read/write of iops_sec_max "
"cannot be set at the same time"));
goto endjob;
}
virDomainBlockIoTuneInfoCopy(&info, &conf_info);
if (def) {
if (!(disk = qemuDomainDiskByName(def, path)))
goto endjob;
if (!qemuDomainDiskBlockIoTuneIsSupported(disk->src))
goto endjob;
if (QEMU_DOMAIN_DISK_PRIVATE(disk)->qomName) {
qdevid = QEMU_DOMAIN_DISK_PRIVATE(disk)->qomName;
} else {
if (!(drivealias = qemuAliasDiskDriveFromDisk(disk)))
goto endjob;
}
cur_info = qemuDomainFindGroupBlockIoTune(def, disk, &info);
if (qemuDomainSetBlockIoTuneDefaults(&info, cur_info,
set_fields) < 0)
goto endjob;
if (qemuDomainCheckBlockIoTuneReset(disk, &info) < 0)
goto endjob;
#define CHECK_MAX(val, _bool) \
do { \
if (info.val##_max) { \
if (!info.val) { \
if (QEMU_BLOCK_IOTUNE_SET_##_bool) { \
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, \
_("cannot reset '%s' when " \
"'%s' is set"), \
#val, #val "_max"); \
} else { \
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, \
_("value '%s' cannot be set if " \
"'%s' is not set"), \
#val "_max", #val); \
} \
goto endjob; \
} \
if (info.val##_max < info.val) { \
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, \
_("value '%s' cannot be " \
"smaller than '%s'"), \
#val "_max", #val); \
goto endjob; \
} \
} \
} while (false)
CHECK_MAX(total_bytes_sec, BYTES);
CHECK_MAX(read_bytes_sec, BYTES);
CHECK_MAX(write_bytes_sec, BYTES);
CHECK_MAX(total_iops_sec, IOPS);
CHECK_MAX(read_iops_sec, IOPS);
CHECK_MAX(write_iops_sec, IOPS);
#undef CHECK_MAX
/* blockdev-based qemu doesn't want to set the throttling when a cdrom
* is empty. Skip the monitor call here since we will set the throttling
* once new media is inserted */
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV) ||
!virStorageSourceIsEmpty(disk->src)) {
int rc = 0;
qemuDomainObjEnterMonitor(vm);
rc = qemuMonitorSetBlockIoThrottle(priv->mon, drivealias, qdevid, &info);
qemuDomainObjExitMonitor(vm);
if (rc < 0)
goto endjob;
}
virDomainDiskSetBlockIOTune(disk, &info);
qemuDomainSetGroupBlockIoTune(def, &info);
qemuDomainSaveStatus(vm);
if (eventNparams) {
event = virDomainEventTunableNewFromDom(dom, eventParams, eventNparams);
eventNparams = 0;
virObjectEventStateQueue(driver->domainEventState, event);
}
}
if (persistentDef) {
if (!(conf_disk = virDomainDiskByName(persistentDef, path, true))) {
virReportError(VIR_ERR_INVALID_ARG,
_("missing persistent configuration for disk '%s'"),
path);
goto endjob;
}
if (!qemuDomainDiskBlockIoTuneIsSupported(conf_disk->src))
goto endjob;
conf_cur_info = qemuDomainFindGroupBlockIoTune(persistentDef, conf_disk, &info);
if (qemuDomainSetBlockIoTuneDefaults(&conf_info, conf_cur_info,
set_fields) < 0)
goto endjob;
if (qemuDomainCheckBlockIoTuneReset(conf_disk, &conf_info) < 0)
goto endjob;
virDomainDiskSetBlockIOTune(conf_disk, &conf_info);
qemuDomainSetGroupBlockIoTune(persistentDef, &conf_info);
if (virDomainDefSave(persistentDef, driver->xmlopt,
cfg->configDir) < 0)
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
VIR_FREE(info.group_name);
VIR_FREE(conf_info.group_name);
virDomainObjEndAPI(&vm);
if (eventNparams)
virTypedParamsFree(eventParams, eventNparams);
return ret;
}
static int
qemuDomainGetBlockIoTune(virDomainPtr dom,
const char *path,
virTypedParameterPtr params,
int *nparams,
unsigned int flags)
{
virDomainDiskDef *disk;
virDomainObj *vm = NULL;
qemuDomainObjPrivate *priv = NULL;
virDomainDef *def = NULL;
virDomainDef *persistentDef = NULL;
virDomainBlockIoTuneInfo reply = {0};
g_autofree char *drivealias = NULL;
const char *qdevid = NULL;
int ret = -1;
int maxparams;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG |
VIR_TYPED_PARAM_STRING_OKAY, -1);
/* We don't return strings, and thus trivially support this flag. */
flags &= ~VIR_TYPED_PARAM_STRING_OKAY;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
priv = vm->privateData;
if (virDomainGetBlockIoTuneEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
goto cleanup;
/* the API check guarantees that only one of the definitions will be set */
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
maxparams = QEMU_NB_BLOCK_IO_TUNE_ALL_PARAMS;
if (*nparams == 0) {
*nparams = maxparams;
ret = 0;
goto endjob;
}
if (*nparams < maxparams)
maxparams = *nparams;
*nparams = 0;
if (def) {
int rc = 0;
if (!(disk = qemuDomainDiskByName(def, path)))
goto endjob;
if (!qemuDomainDiskBlockIoTuneIsSupported(disk->src))
goto endjob;
if (QEMU_DOMAIN_DISK_PRIVATE(disk)->qomName) {
qdevid = QEMU_DOMAIN_DISK_PRIVATE(disk)->qomName;
} else {
if (!(drivealias = qemuAliasDiskDriveFromDisk(disk)))
goto endjob;
}
qemuDomainObjEnterMonitor(vm);
rc = qemuMonitorGetBlockIoThrottle(priv->mon, drivealias, qdevid, &reply);
qemuDomainObjExitMonitor(vm);
if (rc < 0)
goto endjob;
}
if (persistentDef) {
if (!(disk = virDomainDiskByName(persistentDef, path, true))) {
virReportError(VIR_ERR_INVALID_ARG,
_("disk '%s' was not found in the domain config"),
path);
goto endjob;
}
if (!qemuDomainDiskBlockIoTuneIsSupported(disk->src))
goto endjob;
reply = disk->blkdeviotune;
/* Group name needs to be copied since qemuMonitorGetBlockIoThrottle
* allocates it as well */
reply.group_name = g_strdup(disk->blkdeviotune.group_name);
}
#define BLOCK_IOTUNE_ASSIGN(name, var) \
if (*nparams < maxparams && \
virTypedParameterAssign(&params[(*nparams)++], \
VIR_DOMAIN_BLOCK_IOTUNE_ ## name, \
VIR_TYPED_PARAM_ULLONG, \
reply.var) < 0) \
goto endjob
BLOCK_IOTUNE_ASSIGN(TOTAL_BYTES_SEC, total_bytes_sec);
BLOCK_IOTUNE_ASSIGN(READ_BYTES_SEC, read_bytes_sec);
BLOCK_IOTUNE_ASSIGN(WRITE_BYTES_SEC, write_bytes_sec);
BLOCK_IOTUNE_ASSIGN(TOTAL_IOPS_SEC, total_iops_sec);
BLOCK_IOTUNE_ASSIGN(READ_IOPS_SEC, read_iops_sec);
BLOCK_IOTUNE_ASSIGN(WRITE_IOPS_SEC, write_iops_sec);
BLOCK_IOTUNE_ASSIGN(TOTAL_BYTES_SEC_MAX, total_bytes_sec_max);
BLOCK_IOTUNE_ASSIGN(READ_BYTES_SEC_MAX, read_bytes_sec_max);
BLOCK_IOTUNE_ASSIGN(WRITE_BYTES_SEC_MAX, write_bytes_sec_max);
BLOCK_IOTUNE_ASSIGN(TOTAL_IOPS_SEC_MAX, total_iops_sec_max);
BLOCK_IOTUNE_ASSIGN(READ_IOPS_SEC_MAX, read_iops_sec_max);
BLOCK_IOTUNE_ASSIGN(WRITE_IOPS_SEC_MAX, write_iops_sec_max);
BLOCK_IOTUNE_ASSIGN(SIZE_IOPS_SEC, size_iops_sec);
if (*nparams < maxparams) {
if (virTypedParameterAssign(&params[(*nparams)++],
VIR_DOMAIN_BLOCK_IOTUNE_GROUP_NAME,
VIR_TYPED_PARAM_STRING,
reply.group_name) < 0)
goto endjob;
reply.group_name = NULL;
}
BLOCK_IOTUNE_ASSIGN(TOTAL_BYTES_SEC_MAX_LENGTH, total_bytes_sec_max_length);
BLOCK_IOTUNE_ASSIGN(READ_BYTES_SEC_MAX_LENGTH, read_bytes_sec_max_length);
BLOCK_IOTUNE_ASSIGN(WRITE_BYTES_SEC_MAX_LENGTH, write_bytes_sec_max_length);
BLOCK_IOTUNE_ASSIGN(TOTAL_IOPS_SEC_MAX_LENGTH, total_iops_sec_max_length);
BLOCK_IOTUNE_ASSIGN(READ_IOPS_SEC_MAX_LENGTH, read_iops_sec_max_length);
BLOCK_IOTUNE_ASSIGN(WRITE_IOPS_SEC_MAX_LENGTH, write_iops_sec_max_length);
#undef BLOCK_IOTUNE_ASSIGN
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
VIR_FREE(reply.group_name);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetDiskErrors(virDomainPtr dom,
virDomainDiskErrorPtr errors,
unsigned int nerrors,
unsigned int flags)
{
virDomainObj *vm = NULL;
qemuDomainObjPrivate *priv;
g_autoptr(GHashTable) table = NULL;
int ret = -1;
size_t i;
int n = 0;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
priv = vm->privateData;
if (virDomainGetDiskErrorsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!errors) {
ret = vm->def->ndisks;
goto endjob;
}
qemuDomainObjEnterMonitor(vm);
table = qemuMonitorGetBlockInfo(priv->mon);
qemuDomainObjExitMonitor(vm);
if (!table)
goto endjob;
for (i = n = 0; i < vm->def->ndisks; i++) {
struct qemuDomainDiskInfo *info;
virDomainDiskDef *disk = vm->def->disks[i];
qemuDomainDiskPrivate *diskPriv = QEMU_DOMAIN_DISK_PRIVATE(disk);
const char *entryname = disk->info.alias;
if (diskPriv->qomName)
entryname = diskPriv->qomName;
if ((info = virHashLookup(table, entryname)) &&
info->io_status != VIR_DOMAIN_DISK_ERROR_NONE) {
if (n == nerrors)
break;
errors[n].disk = g_strdup(disk->dst);
errors[n].error = info->io_status;
n++;
}
}
ret = n;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
if (ret < 0) {
for (i = 0; i < n; i++)
VIR_FREE(errors[i].disk);
}
return ret;
}
static int
qemuDomainSetMetadata(virDomainPtr dom,
int type,
const char *metadata,
const char *key,
const char *uri,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
int ret = -1;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
cfg = virQEMUDriverGetConfig(driver);
if (virDomainSetMetadataEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
ret = virDomainObjSetMetadata(vm, type, metadata, key, uri,
driver->xmlopt, cfg->stateDir,
cfg->configDir, flags);
if (ret == 0) {
virObjectEvent *ev = NULL;
ev = virDomainEventMetadataChangeNewFromObj(vm, type, uri);
virObjectEventStateQueue(driver->domainEventState, ev);
}
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static char *
qemuDomainGetMetadata(virDomainPtr dom,
int type,
const char *uri,
unsigned int flags)
{
virDomainObj *vm;
char *ret = NULL;
if (!(vm = qemuDomainObjFromDomain(dom)))
return NULL;
if (virDomainGetMetadataEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
ret = virDomainObjGetMetadata(vm, type, uri, flags);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetCPUStats(virDomainPtr domain,
virTypedParameterPtr params,
unsigned int nparams,
int start_cpu,
unsigned int ncpus,
unsigned int flags)
{
virDomainObj *vm = NULL;
int ret = -1;
qemuDomainObjPrivate *priv;
g_autoptr(virBitmap) guestvcpus = NULL;
virCheckFlags(VIR_TYPED_PARAM_STRING_OKAY, -1);
if (!(vm = qemuDomainObjFromDomain(domain)))
return -1;
priv = vm->privateData;
if (virDomainGetCPUStatsEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPUACCT)) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cgroup CPUACCT controller is not mounted"));
goto cleanup;
}
if (qemuDomainHasVcpuPids(vm) &&
!(guestvcpus = virDomainDefGetOnlineVcpumap(vm->def)))
goto cleanup;
if (start_cpu == -1)
ret = virCgroupGetDomainTotalCpuStats(priv->cgroup,
params, nparams);
else
ret = virCgroupGetPercpuStats(priv->cgroup, params, nparams,
start_cpu, ncpus, guestvcpus);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainProbeQMPCurrentMachine(virDomainObj *vm,
bool *wakeupSupported)
{
qemuDomainObjPrivate *priv = vm->privateData;
qemuMonitorCurrentMachineInfo info = { 0 };
int rv;
qemuDomainObjEnterMonitor(vm);
rv = qemuMonitorGetCurrentMachineInfo(priv->mon, &info);
qemuDomainObjExitMonitor(vm);
if (rv < 0)
return -1;
*wakeupSupported = info.wakeupSuspendSupport;
return 0;
}
/* returns -1 on error, or if query is not supported, 0 if query was successful */
static int
qemuDomainQueryWakeupSuspendSupport(virDomainObj *vm,
bool *wakeupSupported)
{
qemuDomainObjPrivate *priv = vm->privateData;
int ret = -1;
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_QUERY_CURRENT_MACHINE))
return -1;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
return -1;
if ((ret = virDomainObjCheckActive(vm)) < 0)
goto endjob;
ret = qemuDomainProbeQMPCurrentMachine(vm, wakeupSupported);
endjob:
qemuDomainObjEndJob(vm);
return ret;
}
static int
qemuDomainPMSuspendAgent(virDomainObj *vm,
unsigned int target)
{
qemuAgent *agent;
int ret = -1;
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_MODIFY) < 0)
return -1;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!qemuDomainAgentAvailable(vm, true))
goto endjob;
agent = qemuDomainObjEnterAgent(vm);
ret = qemuAgentSuspend(agent, target);
qemuDomainObjExitAgent(vm, agent);
endjob:
qemuDomainObjEndAgentJob(vm);
return ret;
}
static int
qemuDomainPMSuspendForDuration(virDomainPtr dom,
unsigned int target,
unsigned long long duration,
unsigned int flags)
{
virDomainObj *vm;
int ret = -1;
bool wakeupSupported;
virCheckFlags(0, -1);
if (duration) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("Duration not supported. Use 0 for now"));
return -1;
}
if (!(target == VIR_NODE_SUSPEND_TARGET_MEM ||
target == VIR_NODE_SUSPEND_TARGET_DISK ||
target == VIR_NODE_SUSPEND_TARGET_HYBRID)) {
virReportError(VIR_ERR_INVALID_ARG,
_("Unknown suspend target: %u"),
target);
return -1;
}
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainPMSuspendForDurationEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!qemuDomainAgentAvailable(vm, true))
goto cleanup;
/*
* The case we want to handle here is when QEMU has the API (i.e.
* QEMU_CAPS_QUERY_CURRENT_MACHINE is set). Otherwise, do not interfere
* with the suspend process. This means that existing running domains,
* that don't know about this cap, will keep their old behavior of
* suspending 'in the dark'.
*/
if (qemuDomainQueryWakeupSuspendSupport(vm, &wakeupSupported) == 0) {
if (!wakeupSupported) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("Domain does not have suspend support"));
goto cleanup;
}
}
if (vm->def->pm.s3 || vm->def->pm.s4) {
if (vm->def->pm.s3 == VIR_TRISTATE_BOOL_NO &&
(target == VIR_NODE_SUSPEND_TARGET_MEM ||
target == VIR_NODE_SUSPEND_TARGET_HYBRID)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("S3 state is disabled for this domain"));
goto cleanup;
}
if (vm->def->pm.s4 == VIR_TRISTATE_BOOL_NO &&
target == VIR_NODE_SUSPEND_TARGET_DISK) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("S4 state is disabled for this domain"));
goto cleanup;
}
}
ret = qemuDomainPMSuspendAgent(vm, target);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainPMWakeup(virDomainPtr dom,
unsigned int flags)
{
virDomainObj *vm;
int ret = -1;
qemuDomainObjPrivate *priv;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainPMWakeupEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
priv = vm->privateData;
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorSystemWakeup(priv->mon);
qemuDomainObjExitMonitor(vm);
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuConnectListAllDomains(virConnectPtr conn,
virDomainPtr **domains,
unsigned int flags)
{
virQEMUDriver *driver = conn->privateData;
virCheckFlags(VIR_CONNECT_LIST_DOMAINS_FILTERS_ALL, -1);
if (virConnectListAllDomainsEnsureACL(conn) < 0)
return -1;
return virDomainObjListExport(driver->domains, conn, domains,
virConnectListAllDomainsCheckACL, flags);
}
static char *
qemuDomainQemuAgentCommand(virDomainPtr domain,
const char *cmd,
int timeout,
unsigned int flags)
{
virQEMUDriver *driver = domain->conn->privateData;
virDomainObj *vm;
int ret = -1;
char *result = NULL;
qemuAgent *agent;
virCheckFlags(0, NULL);
if (!(vm = qemuDomainObjFromDomain(domain)))
goto cleanup;
if (virDomainQemuAgentCommandEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!qemuDomainAgentAvailable(vm, true))
goto endjob;
qemuDomainObjTaint(driver, vm, VIR_DOMAIN_TAINT_CUSTOM_GA_COMMAND, NULL);
agent = qemuDomainObjEnterAgent(vm);
ret = qemuAgentArbitraryCommand(agent, cmd, &result, timeout);
qemuDomainObjExitAgent(vm, agent);
if (ret < 0)
VIR_FREE(result);
endjob:
qemuDomainObjEndAgentJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return result;
}
static int
qemuConnectDomainQemuMonitorEventRegister(virConnectPtr conn,
virDomainPtr dom,
const char *event,
virConnectDomainQemuMonitorEventCallback callback,
void *opaque,
virFreeCallback freecb,
unsigned int flags)
{
virQEMUDriver *driver = conn->privateData;
int ret = -1;
if (virConnectDomainQemuMonitorEventRegisterEnsureACL(conn) < 0)
return -1;
if (virDomainQemuMonitorEventStateRegisterID(conn,
driver->domainEventState,
dom, event, callback,
opaque, freecb, flags,
&ret) < 0)
ret = -1;
return ret;
}
static int
qemuConnectDomainQemuMonitorEventDeregister(virConnectPtr conn,
int callbackID)
{
virQEMUDriver *driver = conn->privateData;
if (virConnectDomainQemuMonitorEventDeregisterEnsureACL(conn) < 0)
return -1;
if (virObjectEventStateDeregisterID(conn, driver->domainEventState,
callbackID, true) < 0)
return -1;
return 0;
}
static int
qemuDomainFSTrim(virDomainPtr dom,
const char *mountPoint,
unsigned long long minimum,
unsigned int flags)
{
virDomainObj *vm;
qemuAgent *agent;
int ret = -1;
virCheckFlags(0, -1);
if (mountPoint) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("Specifying mount point "
"is not supported for now"));
return -1;
}
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainFSTrimEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_MODIFY) < 0)
goto cleanup;
if (!qemuDomainAgentAvailable(vm, true))
goto endjob;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
agent = qemuDomainObjEnterAgent(vm);
ret = qemuAgentFSTrim(agent, minimum);
qemuDomainObjExitAgent(vm, agent);
endjob:
qemuDomainObjEndAgentJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuNodeGetInfo(virConnectPtr conn,
virNodeInfoPtr nodeinfo)
{
if (virNodeGetInfoEnsureACL(conn) < 0)
return -1;
return virCapabilitiesGetNodeInfo(nodeinfo);
}
static int
qemuNodeGetCPUStats(virConnectPtr conn,
int cpuNum,
virNodeCPUStatsPtr params,
int *nparams,
unsigned int flags)
{
if (virNodeGetCPUStatsEnsureACL(conn) < 0)
return -1;
return virHostCPUGetStats(cpuNum, params, nparams, flags);
}
static int
qemuNodeGetMemoryStats(virConnectPtr conn,
int cellNum,
virNodeMemoryStatsPtr params,
int *nparams,
unsigned int flags)
{
if (virNodeGetMemoryStatsEnsureACL(conn) < 0)
return -1;
return virHostMemGetStats(cellNum, params, nparams, flags);
}
static int
qemuNodeGetCellsFreeMemory(virConnectPtr conn,
unsigned long long *freeMems,
int startCell,
int maxCells)
{
if (virNodeGetCellsFreeMemoryEnsureACL(conn) < 0)
return -1;
return virHostMemGetCellsFree(freeMems, startCell, maxCells);
}
static unsigned long long
qemuNodeGetFreeMemory(virConnectPtr conn)
{
unsigned long long freeMem;
if (virNodeGetFreeMemoryEnsureACL(conn) < 0)
return 0;
if (virHostMemGetInfo(NULL, &freeMem) < 0)
return 0;
return freeMem;
}
static int
qemuNodeGetMemoryParameters(virConnectPtr conn,
virTypedParameterPtr params,
int *nparams,
unsigned int flags)
{
if (virNodeGetMemoryParametersEnsureACL(conn) < 0)
return -1;
return virHostMemGetParameters(params, nparams, flags);
}
static int
qemuNodeSetMemoryParameters(virConnectPtr conn,
virTypedParameterPtr params,
int nparams,
unsigned int flags)
{
if (virNodeSetMemoryParametersEnsureACL(conn) < 0)
return -1;
return virHostMemSetParameters(params, nparams, flags);
}
static int
qemuNodeGetCPUMap(virConnectPtr conn,
unsigned char **cpumap,
unsigned int *online,
unsigned int flags)
{
if (virNodeGetCPUMapEnsureACL(conn) < 0)
return -1;
return virHostCPUGetMap(cpumap, online, flags);
}
static int
qemuNodeSuspendForDuration(virConnectPtr conn,
unsigned int target,
unsigned long long duration,
unsigned int flags)
{
if (virNodeSuspendForDurationEnsureACL(conn) < 0)
return -1;
return virNodeSuspend(target, duration, flags);
}
static int
qemuConnectGetCPUModelNames(virConnectPtr conn,
const char *archName,
char ***models,
unsigned int flags)
{
virArch arch;
virCheckFlags(0, -1);
if (virConnectGetCPUModelNamesEnsureACL(conn) < 0)
return -1;
if (!(arch = virArchFromString(archName))) {
virReportError(VIR_ERR_INVALID_ARG,
_("cannot find architecture %s"),
archName);
return -1;
}
return virCPUGetModels(arch, models);
}
static int
qemuDomainGetHostnameAgent(virDomainObj *vm,
char **hostname)
{
qemuAgent *agent;
int ret = -1;
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_QUERY) < 0)
return -1;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!qemuDomainAgentAvailable(vm, true))
goto endjob;
agent = qemuDomainObjEnterAgent(vm);
ignore_value(qemuAgentGetHostname(agent, hostname, true));
qemuDomainObjExitAgent(vm, agent);
ret = 0;
endjob:
qemuDomainObjEndAgentJob(vm);
return ret;
}
static int
qemuDomainGetHostnameLease(virDomainObj *vm,
char **hostname)
{
char macaddr[VIR_MAC_STRING_BUFLEN];
g_autoptr(virConnect) conn = NULL;
virNetworkDHCPLeasePtr *leases = NULL;
int n_leases;
size_t i, j;
int ret = -1;
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
return -1;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!(conn = virGetConnectNetwork()))
goto endjob;
for (i = 0; i < vm->def->nnets; i++) {
g_autoptr(virNetwork) network = NULL;
virDomainNetDef *net = vm->def->nets[i];
if (net->type != VIR_DOMAIN_NET_TYPE_NETWORK)
continue;
virMacAddrFormat(&net->mac, macaddr);
network = virNetworkLookupByName(conn, net->data.network.name);
if (!network)
goto endjob;
if ((n_leases = virNetworkGetDHCPLeases(network, macaddr,
&leases, 0)) < 0)
goto endjob;
for (j = 0; j < n_leases; j++) {
virNetworkDHCPLeasePtr lease = leases[j];
if (lease->hostname && !*hostname)
*hostname = g_strdup(lease->hostname);
virNetworkDHCPLeaseFree(lease);
}
VIR_FREE(leases);
if (*hostname)
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
return ret;
}
static char *
qemuDomainGetHostname(virDomainPtr dom,
unsigned int flags)
{
virDomainObj *vm = NULL;
char *hostname = NULL;
virCheckFlags(VIR_DOMAIN_GET_HOSTNAME_LEASE |
VIR_DOMAIN_GET_HOSTNAME_AGENT, NULL);
VIR_EXCLUSIVE_FLAGS_RET(VIR_DOMAIN_GET_HOSTNAME_LEASE,
VIR_DOMAIN_GET_HOSTNAME_AGENT,
NULL);
if (!(flags & VIR_DOMAIN_GET_HOSTNAME_LEASE))
flags |= VIR_DOMAIN_GET_HOSTNAME_AGENT;
if (!(vm = qemuDomainObjFromDomain(dom)))
return NULL;
if (virDomainGetHostnameEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (flags & VIR_DOMAIN_GET_HOSTNAME_AGENT) {
if (qemuDomainGetHostnameAgent(vm, &hostname) < 0)
goto cleanup;
} else if (flags & VIR_DOMAIN_GET_HOSTNAME_LEASE) {
if (qemuDomainGetHostnameLease(vm, &hostname) < 0)
goto cleanup;
}
if (!hostname) {
virReportError(VIR_ERR_NO_HOSTNAME,
_("no hostname found for domain %s"),
vm->def->name);
goto cleanup;
}
cleanup:
virDomainObjEndAPI(&vm);
return hostname;
}
static int
qemuDomainGetTime(virDomainPtr dom,
long long *seconds,
unsigned int *nseconds,
unsigned int flags)
{
virDomainObj *vm = NULL;
qemuAgent *agent;
int ret = -1;
int rv;
virCheckFlags(0, ret);
if (!(vm = qemuDomainObjFromDomain(dom)))
return ret;
if (virDomainGetTimeEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!qemuDomainAgentAvailable(vm, true))
goto endjob;
agent = qemuDomainObjEnterAgent(vm);
rv = qemuAgentGetTime(agent, seconds, nseconds);
qemuDomainObjExitAgent(vm, agent);
if (rv < 0)
goto endjob;
ret = 0;
endjob:
qemuDomainObjEndAgentJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainSetTimeAgent(virDomainObj *vm,
long long seconds,
unsigned int nseconds,
bool rtcSync)
{
qemuAgent *agent;
int ret = -1;
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_MODIFY) < 0)
return -1;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!qemuDomainAgentAvailable(vm, true))
goto endjob;
agent = qemuDomainObjEnterAgent(vm);
ret = qemuAgentSetTime(agent, seconds, nseconds, rtcSync);
qemuDomainObjExitAgent(vm, agent);
endjob:
qemuDomainObjEndAgentJob(vm);
return ret;
}
static int
qemuDomainSetTime(virDomainPtr dom,
long long seconds,
unsigned int nseconds,
unsigned int flags)
{
qemuDomainObjPrivate *priv;
virDomainObj *vm;
bool rtcSync = flags & VIR_DOMAIN_TIME_SYNC;
int ret = -1;
int rv;
virCheckFlags(VIR_DOMAIN_TIME_SYNC, ret);
if (!(vm = qemuDomainObjFromDomain(dom)))
return ret;
if (virDomainSetTimeEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
priv = vm->privateData;
/* On x86, the rtc-reset-reinjection QMP command must be called after
* setting the time to avoid trouble down the line. If the command is
* not available, don't set the time at all and report an error */
if (ARCH_IS_X86(vm->def->os.arch) &&
!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_RTC_RESET_REINJECTION))
{
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("cannot set time: qemu doesn't support "
"rtc-reset-reinjection command"));
goto cleanup;
}
if (qemuDomainSetTimeAgent(vm, seconds, nseconds, rtcSync) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
/* Don't try to call rtc-reset-reinjection if it's not available */
if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_RTC_RESET_REINJECTION)) {
qemuDomainObjEnterMonitor(vm);
rv = qemuMonitorRTCResetReinjection(priv->mon);
qemuDomainObjExitMonitor(vm);
if (rv < 0)
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainFSFreeze(virDomainPtr dom,
const char **mountpoints,
unsigned int nmountpoints,
unsigned int flags)
{
virDomainObj *vm;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainFSFreezeEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
ret = qemuSnapshotFSFreeze(vm, mountpoints, nmountpoints);
endjob:
qemuDomainObjEndAgentJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainFSThaw(virDomainPtr dom,
const char **mountpoints,
unsigned int nmountpoints,
unsigned int flags)
{
virDomainObj *vm;
int ret = -1;
virCheckFlags(0, -1);
if (mountpoints || nmountpoints) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("specifying mountpoints is not supported"));
return ret;
}
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainFSThawEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
ret = qemuSnapshotFSThaw(vm, true);
endjob:
qemuDomainObjEndAgentJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuNodeGetFreePages(virConnectPtr conn,
unsigned int npages,
unsigned int *pages,
int startCell,
unsigned int cellCount,
unsigned long long *counts,
unsigned int flags)
{
virQEMUDriver *driver = conn->privateData;
g_autoptr(virCaps) caps = NULL;
int lastCell;
virCheckFlags(0, -1);
if (virNodeGetFreePagesEnsureACL(conn) < 0)
return -1;
if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
return -1;
lastCell = virCapabilitiesHostNUMAGetMaxNode(caps->host.numa);
return virHostMemGetFreePages(npages, pages, startCell, cellCount,
lastCell, counts);
}
static char *
qemuConnectGetDomainCapabilities(virConnectPtr conn,
const char *emulatorbin,
const char *arch_str,
const char *machine,
const char *virttype_str,
unsigned int flags)
{
virQEMUDriver *driver = conn->privateData;
g_autoptr(virQEMUCaps) qemuCaps = NULL;
virArch arch;
virDomainVirtType virttype;
g_autoptr(virDomainCaps) domCaps = NULL;
virCheckFlags(0, NULL);
if (virConnectGetDomainCapabilitiesEnsureACL(conn) < 0)
return NULL;
qemuCaps = virQEMUCapsCacheLookupDefault(driver->qemuCapsCache,
emulatorbin,
arch_str,
virttype_str,
machine,
&arch, &virttype, &machine);
if (!qemuCaps)
return NULL;
if (!(domCaps = virQEMUDriverGetDomainCapabilities(driver,
qemuCaps, machine,
arch, virttype)))
return NULL;
return virDomainCapsFormat(domCaps);
}
static int
qemuDomainGetStatsState(virQEMUDriver *driver G_GNUC_UNUSED,
virDomainObj *dom,
virTypedParamList *params,
unsigned int privflags G_GNUC_UNUSED)
{
if (virTypedParamListAddInt(params, dom->state.state, "state.state") < 0)
return -1;
if (virTypedParamListAddInt(params, dom->state.reason, "state.reason") < 0)
return -1;
return 0;
}
typedef enum {
QEMU_DOMAIN_STATS_HAVE_JOB = 1 << 0, /* job is entered, monitor can be
accessed */
QEMU_DOMAIN_STATS_BACKING = 1 << 1, /* include backing chain in
block stats */
} qemuDomainStatsFlags;
#define HAVE_JOB(flags) ((flags) & QEMU_DOMAIN_STATS_HAVE_JOB)
typedef struct _virQEMUResctrlMonData virQEMUResctrlMonData;
struct _virQEMUResctrlMonData {
char *name;
char *vcpus;
virResctrlMonitorStats **stats;
size_t nstats;
};
static void
qemuDomainFreeResctrlMonData(virQEMUResctrlMonData *resdata)
{
size_t i = 0;
g_free(resdata->name);
g_free(resdata->vcpus);
for (i = 0; i < resdata->nstats; i++)
virResctrlMonitorStatsFree(resdata->stats[i]);
g_free(resdata->stats);
g_free(resdata);
}
/**
* qemuDomainGetResctrlMonData:
* @dom: Pointer for the domain that the resctrl monitors reside in
* @driver: Pointer to qemu driver
* @resdata: Pointer of virQEMUResctrlMonData * pointer for receiving the
* virQEMUResctrlMonData *array. Caller is responsible for
* freeing the array.
* @nresdata: Pointer of size_t to report the size virQEMUResctrlMonData *
* array to caller. If *@nresdata is not 0, even if function
* returns an error, the caller is also required to call
* qemuDomainFreeResctrlMonData to free each element in the
* *@resdata array and then the array itself.
* @tag: Could be VIR_RESCTRL_MONITOR_TYPE_CACHE for getting cache statistics
* from @dom cache monitors. VIR_RESCTRL_MONITOR_TYPE_MEMBW for
* getting memory bandwidth statistics from memory bandwidth monitors.
*
* Get cache or memory bandwidth statistics from @dom monitors.
*
* Returns -1 on failure, or 0 on success.
*/
static int
qemuDomainGetResctrlMonData(virQEMUDriver *driver,
virDomainObj *dom,
virQEMUResctrlMonData ***resdata,
size_t *nresdata,
virResctrlMonitorType tag)
{
virDomainResctrlDef *resctrl = NULL;
virQEMUResctrlMonData *res = NULL;
char **features = NULL;
g_autoptr(virCaps) caps = NULL;
size_t i = 0;
size_t j = 0;
if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
return -1;
switch (tag) {
case VIR_RESCTRL_MONITOR_TYPE_CACHE:
if (caps->host.cache.monitor)
features = caps->host.cache.monitor->features;
break;
case VIR_RESCTRL_MONITOR_TYPE_MEMBW:
if (caps->host.memBW.monitor)
features = caps->host.memBW.monitor->features;
break;
case VIR_RESCTRL_MONITOR_TYPE_UNSUPPORT:
case VIR_RESCTRL_MONITOR_TYPE_LAST:
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("Unsupported resctrl monitor type"));
return -1;
}
if (!features || !*features)
return 0;
for (i = 0; i < dom->def->nresctrls; i++) {
resctrl = dom->def->resctrls[i];
for (j = 0; j < resctrl->nmonitors; j++) {
virDomainResctrlMonDef *domresmon = NULL;
virResctrlMonitor *monitor = NULL;
domresmon = resctrl->monitors[j];
monitor = domresmon->instance;
if (domresmon->tag != tag)
continue;
res = g_new0(virQEMUResctrlMonData, 1);
/* If virBitmapFormat successfully returns an vcpu string, then
* res.vcpus is assigned with an memory space holding it,
* let this newly allocated memory buffer to be freed along with
* the free of 'res' */
if (!(res->vcpus = virBitmapFormat(domresmon->vcpus)))
goto error;
res->name = g_strdup(virResctrlMonitorGetID(monitor));
if (virResctrlMonitorGetStats(monitor, (const char **)features,
&res->stats, &res->nstats) < 0)
goto error;
VIR_APPEND_ELEMENT(*resdata, *nresdata, res);
}
}
return 0;
error:
qemuDomainFreeResctrlMonData(res);
return -1;
}
static int
qemuDomainGetStatsMemoryBandwidth(virQEMUDriver *driver,
virDomainObj *dom,
virTypedParamList *params)
{
virQEMUResctrlMonData **resdata = NULL;
char **features = NULL;
size_t nresdata = 0;
size_t i = 0;
size_t j = 0;
size_t k = 0;
int ret = -1;
if (!virDomainObjIsActive(dom))
return 0;
if (qemuDomainGetResctrlMonData(driver, dom, &resdata, &nresdata,
VIR_RESCTRL_MONITOR_TYPE_MEMBW) < 0)
goto cleanup;
if (nresdata == 0)
return 0;
if (virTypedParamListAddUInt(params, nresdata,
"memory.bandwidth.monitor.count") < 0)
goto cleanup;
for (i = 0; i < nresdata; i++) {
if (virTypedParamListAddString(params, resdata[i]->name,
"memory.bandwidth.monitor.%zu.name",
i) < 0)
goto cleanup;
if (virTypedParamListAddString(params, resdata[i]->vcpus,
"memory.bandwidth.monitor.%zu.vcpus",
i) < 0)
goto cleanup;
if (virTypedParamListAddUInt(params, resdata[i]->nstats,
"memory.bandwidth.monitor.%zu.node.count",
i) < 0)
goto cleanup;
for (j = 0; j < resdata[i]->nstats; j++) {
if (virTypedParamListAddUInt(params, resdata[i]->stats[j]->id,
"memory.bandwidth.monitor.%zu."
"node.%zu.id",
i, j) < 0)
goto cleanup;
features = resdata[i]->stats[j]->features;
for (k = 0; features[k]; k++) {
if (STREQ(features[k], "mbm_local_bytes")) {
/* The accumulative data passing through local memory
* controller is recorded with 64 bit counter. */
if (virTypedParamListAddULLong(params,
resdata[i]->stats[j]->vals[k],
"memory.bandwidth.monitor."
"%zu.node.%zu.bytes.local",
i, j) < 0)
goto cleanup;
}
if (STREQ(features[k], "mbm_total_bytes")) {
/* The accumulative data passing through local and remote
* memory controller is recorded with 64 bit counter. */
if (virTypedParamListAddULLong(params,
resdata[i]->stats[j]->vals[k],
"memory.bandwidth.monitor."
"%zu.node.%zu.bytes.total",
i, j) < 0)
goto cleanup;
}
}
}
}
ret = 0;
cleanup:
for (i = 0; i < nresdata; i++)
qemuDomainFreeResctrlMonData(resdata[i]);
VIR_FREE(resdata);
return ret;
}
static int
qemuDomainGetStatsCpuCache(virQEMUDriver *driver,
virDomainObj *dom,
virTypedParamList *params)
{
virQEMUResctrlMonData **resdata = NULL;
size_t nresdata = 0;
size_t i = 0;
size_t j = 0;
int ret = -1;
if (!virDomainObjIsActive(dom))
return 0;
if (qemuDomainGetResctrlMonData(driver, dom, &resdata, &nresdata,
VIR_RESCTRL_MONITOR_TYPE_CACHE) < 0)
goto cleanup;
if (virTypedParamListAddUInt(params, nresdata, "cpu.cache.monitor.count") < 0)
goto cleanup;
for (i = 0; i < nresdata; i++) {
if (virTypedParamListAddString(params, resdata[i]->name,
"cpu.cache.monitor.%zu.name", i) < 0)
goto cleanup;
if (virTypedParamListAddString(params, resdata[i]->vcpus,
"cpu.cache.monitor.%zu.vcpus", i) < 0)
goto cleanup;
if (virTypedParamListAddUInt(params, resdata[i]->nstats,
"cpu.cache.monitor.%zu.bank.count", i) < 0)
goto cleanup;
for (j = 0; j < resdata[i]->nstats; j++) {
if (virTypedParamListAddUInt(params, resdata[i]->stats[j]->id,
"cpu.cache.monitor.%zu.bank.%zu.id", i, j) < 0)
goto cleanup;
/* 'resdata[i]->stats[j]->vals[0]' keeps the value of how many last
* level cache in bank j currently occupied by the vcpus listed in
* resource monitor i, in bytes. This value is reported through a
* 64 bit hardware counter, so it is better to be arranged with
* data type in 64 bit width, but considering the fact that
* physical cache on a CPU could never be designed to be bigger
* than 4G bytes in size, to keep the 'domstats' interface
* historically consistent, it is safe to report the value with a
* truncated 'UInt' data type here. */
if (virTypedParamListAddUInt(params,
(unsigned int)resdata[i]->stats[j]->vals[0],
"cpu.cache.monitor.%zu.bank.%zu.bytes",
i, j) < 0)
goto cleanup;
}
}
ret = 0;
cleanup:
for (i = 0; i < nresdata; i++)
qemuDomainFreeResctrlMonData(resdata[i]);
VIR_FREE(resdata);
return ret;
}
static int
qemuDomainGetStatsCpuCgroup(virDomainObj *dom,
virTypedParamList *params)
{
qemuDomainObjPrivate *priv = dom->privateData;
unsigned long long cpu_time = 0;
unsigned long long user_time = 0;
unsigned long long sys_time = 0;
int err = 0;
if (!priv->cgroup)
return 0;
err = virCgroupGetCpuacctUsage(priv->cgroup, &cpu_time);
if (!err && virTypedParamListAddULLong(params, cpu_time, "cpu.time") < 0)
return -1;
err = virCgroupGetCpuacctStat(priv->cgroup, &user_time, &sys_time);
if (!err && virTypedParamListAddULLong(params, user_time, "cpu.user") < 0)
return -1;
if (!err && virTypedParamListAddULLong(params, sys_time, "cpu.system") < 0)
return -1;
return 0;
}
static int
qemuDomainGetStatsCpuHaltPollTime(virDomainObj *dom,
virTypedParamList *params)
{
unsigned long long haltPollSuccess = 0;
unsigned long long haltPollFail = 0;
pid_t pid = dom->pid;
if (virHostCPUGetHaltPollTime(pid, &haltPollSuccess, &haltPollFail) < 0)
return 0;
if (virTypedParamListAddULLong(params, haltPollSuccess, "cpu.haltpoll.success.time") < 0 ||
virTypedParamListAddULLong(params, haltPollFail, "cpu.haltpoll.fail.time") < 0)
return -1;
return 0;
}
static int
qemuDomainGetStatsCpu(virQEMUDriver *driver,
virDomainObj *dom,
virTypedParamList *params,
unsigned int privflags G_GNUC_UNUSED)
{
if (qemuDomainGetStatsCpuCgroup(dom, params) < 0)
return -1;
if (qemuDomainGetStatsCpuCache(driver, dom, params) < 0)
return -1;
if (qemuDomainGetStatsCpuHaltPollTime(dom, params) < 0)
return -1;
return 0;
}
static int
qemuDomainGetStatsMemory(virQEMUDriver *driver,
virDomainObj *dom,
virTypedParamList *params,
unsigned int privflags G_GNUC_UNUSED)
{
return qemuDomainGetStatsMemoryBandwidth(driver, dom, params);
}
static int
qemuDomainGetStatsBalloon(virQEMUDriver *driver G_GNUC_UNUSED,
virDomainObj *dom,
virTypedParamList *params,
unsigned int privflags)
{
virDomainMemoryStatStruct stats[VIR_DOMAIN_MEMORY_STAT_NR];
int nr_stats;
unsigned long long cur_balloon = 0;
size_t i;
if (!virDomainDefHasMemballoon(dom->def)) {
cur_balloon = virDomainDefGetMemoryTotal(dom->def);
} else {
cur_balloon = dom->def->mem.cur_balloon;
}
if (virTypedParamListAddULLong(params, cur_balloon, "balloon.current") < 0)
return -1;
if (virTypedParamListAddULLong(params, virDomainDefGetMemoryTotal(dom->def),
"balloon.maximum") < 0)
return -1;
if (!HAVE_JOB(privflags) || !virDomainObjIsActive(dom))
return 0;
nr_stats = qemuDomainMemoryStatsInternal(dom, stats,
VIR_DOMAIN_MEMORY_STAT_NR);
if (nr_stats < 0)
return 0;
#define STORE_MEM_RECORD(TAG, NAME) \
if (stats[i].tag == VIR_DOMAIN_MEMORY_STAT_ ##TAG) \
if (virTypedParamListAddULLong(params, stats[i].val, "balloon." NAME) < 0) \
return -1;
for (i = 0; i < nr_stats; i++) {
STORE_MEM_RECORD(SWAP_IN, "swap_in")
STORE_MEM_RECORD(SWAP_OUT, "swap_out")
STORE_MEM_RECORD(MAJOR_FAULT, "major_fault")
STORE_MEM_RECORD(MINOR_FAULT, "minor_fault")
STORE_MEM_RECORD(UNUSED, "unused")
STORE_MEM_RECORD(AVAILABLE, "available")
STORE_MEM_RECORD(RSS, "rss")
STORE_MEM_RECORD(LAST_UPDATE, "last-update")
STORE_MEM_RECORD(USABLE, "usable")
STORE_MEM_RECORD(DISK_CACHES, "disk_caches")
STORE_MEM_RECORD(HUGETLB_PGALLOC, "hugetlb_pgalloc")
STORE_MEM_RECORD(HUGETLB_PGFAIL, "hugetlb_pgfail")
}
#undef STORE_MEM_RECORD
return 0;
}
static int
qemuDomainGetStatsVcpu(virQEMUDriver *driver G_GNUC_UNUSED,
virDomainObj *dom,
virTypedParamList *params,
unsigned int privflags)
{
virDomainVcpuDef *vcpu;
qemuDomainVcpuPrivate *vcpupriv;
size_t i;
int ret = -1;
virVcpuInfoPtr cpuinfo = NULL;
g_autofree unsigned long long *cpuwait = NULL;
g_autofree unsigned long long *cpudelay = NULL;
if (virTypedParamListAddUInt(params, virDomainDefGetVcpus(dom->def),
"vcpu.current") < 0)
return -1;
if (virTypedParamListAddUInt(params, virDomainDefGetVcpusMax(dom->def),
"vcpu.maximum") < 0)
return -1;
cpuinfo = g_new0(virVcpuInfo, virDomainDefGetVcpus(dom->def));
cpuwait = g_new0(unsigned long long, virDomainDefGetVcpus(dom->def));
cpudelay = g_new0(unsigned long long, virDomainDefGetVcpus(dom->def));
if (HAVE_JOB(privflags) && virDomainObjIsActive(dom) &&
qemuDomainRefreshVcpuHalted(dom, VIR_ASYNC_JOB_NONE) < 0) {
/* it's ok to be silent and go ahead, because halted vcpu info
* wasn't here from the beginning */
virResetLastError();
}
if (qemuDomainHelperGetVcpus(dom, cpuinfo, cpuwait, cpudelay,
virDomainDefGetVcpus(dom->def),
NULL, 0) < 0) {
virResetLastError();
ret = 0; /* it's ok to be silent and go ahead */
goto cleanup;
}
for (i = 0; i < virDomainDefGetVcpus(dom->def); i++) {
if (virTypedParamListAddInt(params, cpuinfo[i].state,
"vcpu.%u.state", cpuinfo[i].number) < 0)
goto cleanup;
/* stats below are available only if the VM is alive */
if (!virDomainObjIsActive(dom))
continue;
if (virTypedParamListAddULLong(params, cpuinfo[i].cpuTime,
"vcpu.%u.time", cpuinfo[i].number) < 0)
goto cleanup;
if (virTypedParamListAddULLong(params, cpuwait[i],
"vcpu.%u.wait", cpuinfo[i].number) < 0)
goto cleanup;
if (virTypedParamListAddULLong(params, cpudelay[i],
"vcpu.%u.delay", cpuinfo[i].number) < 0)
goto cleanup;
/* state below is extracted from the individual vcpu structs */
if (!(vcpu = virDomainDefGetVcpu(dom->def, cpuinfo[i].number)))
continue;
vcpupriv = QEMU_DOMAIN_VCPU_PRIVATE(vcpu);
if (vcpupriv->halted != VIR_TRISTATE_BOOL_ABSENT) {
if (virTypedParamListAddBoolean(params,
vcpupriv->halted == VIR_TRISTATE_BOOL_YES,
"vcpu.%u.halted",
cpuinfo[i].number) < 0)
goto cleanup;
}
}
ret = 0;
cleanup:
VIR_FREE(cpuinfo);
return ret;
}
#define QEMU_ADD_NET_PARAM(params, num, name, value) \
if (value >= 0 && \
virTypedParamListAddULLong((params), (value), "net.%zu.%s", (num), (name)) < 0) \
return -1;
static int
qemuDomainGetStatsInterface(virQEMUDriver *driver G_GNUC_UNUSED,
virDomainObj *dom,
virTypedParamList *params,
unsigned int privflags G_GNUC_UNUSED)
{
size_t i;
struct _virDomainInterfaceStats tmp;
if (!virDomainObjIsActive(dom))
return 0;
if (virTypedParamListAddUInt(params, dom->def->nnets, "net.count") < 0)
return -1;
/* Check the path is one of the domain's network interfaces. */
for (i = 0; i < dom->def->nnets; i++) {
virDomainNetDef *net = dom->def->nets[i];
virDomainNetType actualType;
if (!net->ifname)
continue;
memset(&tmp, 0, sizeof(tmp));
actualType = virDomainNetGetActualType(net);
if (virTypedParamListAddString(params, net->ifname, "net.%zu.name", i) < 0)
return -1;
if (actualType == VIR_DOMAIN_NET_TYPE_VHOSTUSER) {
if (virNetDevOpenvswitchInterfaceStats(net->ifname, &tmp) < 0) {
virResetLastError();
continue;
}
} else {
if (virNetDevTapInterfaceStats(net->ifname, &tmp,
!virDomainNetTypeSharesHostView(net)) < 0) {
virResetLastError();
continue;
}
}
QEMU_ADD_NET_PARAM(params, i,
"rx.bytes", tmp.rx_bytes);
QEMU_ADD_NET_PARAM(params, i,
"rx.pkts", tmp.rx_packets);
QEMU_ADD_NET_PARAM(params, i,
"rx.errs", tmp.rx_errs);
QEMU_ADD_NET_PARAM(params, i,
"rx.drop", tmp.rx_drop);
QEMU_ADD_NET_PARAM(params, i,
"tx.bytes", tmp.tx_bytes);
QEMU_ADD_NET_PARAM(params, i,
"tx.pkts", tmp.tx_packets);
QEMU_ADD_NET_PARAM(params, i,
"tx.errs", tmp.tx_errs);
QEMU_ADD_NET_PARAM(params, i,
"tx.drop", tmp.tx_drop);
}
return 0;
}
#undef QEMU_ADD_NET_PARAM
/* refresh information by opening images on the disk */
static int
qemuDomainGetStatsOneBlockFallback(virQEMUDriver *driver,
virQEMUDriverConfig *cfg,
virDomainObj *dom,
virTypedParamList *params,
virStorageSource *src,
size_t block_idx)
{
if (virStorageSourceIsEmpty(src))
return 0;
if (qemuStorageLimitsRefresh(driver, cfg, dom, src, true) <= 0) {
virResetLastError();
return 0;
}
if (src->allocation &&
virTypedParamListAddULLong(params, src->allocation,
"block.%zu.allocation", block_idx) < 0)
return -1;
if (src->capacity &&
virTypedParamListAddULLong(params, src->capacity,
"block.%zu.capacity", block_idx) < 0)
return -1;
if (src->physical &&
virTypedParamListAddULLong(params, src->physical,
"block.%zu.physical", block_idx) < 0)
return -1;
return 0;
}
static int
qemuDomainGetStatsOneBlock(virQEMUDriver *driver,
virQEMUDriverConfig *cfg,
virDomainObj *dom,
virTypedParamList *params,
const char *entryname,
virStorageSource *src,
size_t block_idx,
GHashTable *stats)
{
qemuBlockStats *entry;
/* the VM is offline so we have to go and load the stast from the disk by
* ourselves */
if (!virDomainObjIsActive(dom)) {
return qemuDomainGetStatsOneBlockFallback(driver, cfg, dom, params,
src, block_idx);
}
/* In case where qemu didn't provide the stats we stop here rather than
* trying to refresh the stats from the disk. Inability to provide stats is
* usually caused by blocked storage so this would make libvirtd hang */
if (!stats || !entryname || !(entry = virHashLookup(stats, entryname)))
return 0;
if (virTypedParamListAddULLong(params, entry->wr_highest_offset,
"block.%zu.allocation", block_idx) < 0)
return -1;
if (entry->capacity &&
virTypedParamListAddULLong(params, entry->capacity,
"block.%zu.capacity", block_idx) < 0)
return -1;
if (entry->physical) {
if (virTypedParamListAddULLong(params, entry->physical,
"block.%zu.physical", block_idx) < 0)
return -1;
} else {
if (qemuDomainStorageUpdatePhysical(driver, cfg, dom, src) == 0) {
if (virTypedParamListAddULLong(params, src->physical,
"block.%zu.physical", block_idx) < 0)
return -1;
}
}
return 0;
}
static int
qemuDomainGetStatsBlockExportBackendStorage(const char *entryname,
GHashTable *stats,
size_t recordnr,
virTypedParamList *params)
{
qemuBlockStats *entry;
if (!stats || !entryname || !(entry = virHashLookup(stats, entryname)))
return 0;
if (entry->write_threshold &&
virTypedParamListAddULLong(params, entry->write_threshold,
"block.%zu.threshold", recordnr) < 0)
return -1;
return 0;
}
static int
qemuDomainGetStatsBlockExportFrontend(const char *frontendname,
GHashTable *stats,
size_t idx,
virTypedParamList *par)
{
qemuBlockStats *en;
/* In case where qemu didn't provide the stats we stop here rather than
* trying to refresh the stats from the disk. Inability to provide stats is
* usually caused by blocked storage so this would make libvirtd hang */
if (!stats || !frontendname || !(en = virHashLookup(stats, frontendname)))
return 0;
if (virTypedParamListAddULLong(par, en->rd_req, "block.%zu.rd.reqs", idx) < 0 ||
virTypedParamListAddULLong(par, en->rd_bytes, "block.%zu.rd.bytes", idx) < 0 ||
virTypedParamListAddULLong(par, en->rd_total_times, "block.%zu.rd.times", idx) < 0 ||
virTypedParamListAddULLong(par, en->wr_req, "block.%zu.wr.reqs", idx) < 0 ||
virTypedParamListAddULLong(par, en->wr_bytes, "block.%zu.wr.bytes", idx) < 0 ||
virTypedParamListAddULLong(par, en->wr_total_times, "block.%zu.wr.times", idx) < 0 ||
virTypedParamListAddULLong(par, en->flush_req, "block.%zu.fl.reqs", idx) < 0 ||
virTypedParamListAddULLong(par, en->flush_total_times, "block.%zu.fl.times", idx) < 0)
return -1;
return 0;
}
static int
qemuDomainGetStatsBlockExportHeader(virDomainDiskDef *disk,
virStorageSource *src,
size_t recordnr,
virTypedParamList *params)
{
if (virTypedParamListAddString(params, disk->dst, "block.%zu.name", recordnr) < 0)
return -1;
if (virStorageSourceIsLocalStorage(src) && src->path &&
virTypedParamListAddString(params, src->path, "block.%zu.path", recordnr) < 0)
return -1;
if (src->id &&
virTypedParamListAddUInt(params, src->id, "block.%zu.backingIndex", recordnr) < 0)
return -1;
return 0;
}
static int
qemuDomainGetStatsBlockExportDisk(virDomainDiskDef *disk,
GHashTable *stats,
virTypedParamList *params,
size_t *recordnr,
bool visitBacking,
virQEMUDriver *driver,
virQEMUDriverConfig *cfg,
virDomainObj *dom)
{
virStorageSource *n;
/*
* This helps to keep logs clean from error messages on getting stats
* for optional disk with nonexistent source file. We won't get any
* stats for such a disk anyway in below code.
*/
if (!virDomainObjIsActive(dom) &&
qemuDomainDiskIsMissingLocalOptional(disk)) {
VIR_INFO("optional disk '%s' source file is missing, "
"skip getting stats", disk->dst);
if (qemuDomainGetStatsBlockExportHeader(disk, disk->src, *recordnr,
params) < 0) {
return -1;
}
(*recordnr)++;
return 0;
}
/* vhost-user disk doesn't support getting block stats */
if (virStorageSourceGetActualType(disk->src) == VIR_STORAGE_TYPE_VHOST_USER) {
if (qemuDomainGetStatsBlockExportHeader(disk, disk->src, *recordnr,
params) < 0) {
return -1;
}
(*recordnr)++;
return 0;
}
for (n = disk->src; virStorageSourceIsBacking(n); n = n->backingStore) {
g_autofree char *alias = NULL;
const char *frontendalias;
const char *backendalias;
const char *backendstoragealias;
if (QEMU_DOMAIN_DISK_PRIVATE(disk)->qomName) {
frontendalias = QEMU_DOMAIN_DISK_PRIVATE(disk)->qomName;
backendalias = n->nodeformat;
backendstoragealias = n->nodestorage;
} else {
/* alias may be NULL if the VM is not running */
if (disk->info.alias &&
!(alias = qemuDomainStorageAlias(disk->info.alias, n->id)))
return -1;
/* for 'sd' disks we won't be displaying stats for the backing chain
* as we don't update the stats correctly */
frontendalias = alias;
backendalias = alias;
backendstoragealias = alias;
}
if (qemuDomainGetStatsBlockExportHeader(disk, n, *recordnr, params) < 0)
return -1;
/* The following stats make sense only for the frontend device */
if (n == disk->src) {
if (qemuDomainGetStatsBlockExportFrontend(frontendalias, stats, *recordnr,
params) < 0)
return -1;
}
if (qemuDomainGetStatsOneBlock(driver, cfg, dom, params,
backendalias, n, *recordnr,
stats) < 0)
return -1;
if (qemuDomainGetStatsBlockExportBackendStorage(backendstoragealias,
stats, *recordnr,
params) < 0)
return -1;
(*recordnr)++;
if (!visitBacking)
break;
}
/* in blockdev mode where we can properly and uniquely identify images we
* can also report stats for the mirror target or the scratch image or target
* of a backup operation */
if (visitBacking) {
qemuDomainObjPrivate *priv = dom->privateData;
if (disk->mirror &&
disk->mirrorJob == VIR_DOMAIN_BLOCK_JOB_TYPE_COPY) {
if (qemuDomainGetStatsBlockExportHeader(disk, disk->mirror, *recordnr, params) < 0)
return -1;
if (qemuDomainGetStatsOneBlock(driver, cfg, dom, params,
disk->mirror->nodeformat,
disk->mirror,
*recordnr,
stats) < 0)
return -1;
if (qemuDomainGetStatsBlockExportBackendStorage(disk->mirror->nodestorage,
stats, *recordnr,
params) < 0)
return -1;
(*recordnr)++;
}
if (priv->backup) {
size_t i;
for (i = 0; i < priv->backup->ndisks; i++) {
virDomainBackupDiskDef *backupdisk = priv->backup->disks + i;
if (STRNEQ(disk->dst, priv->backup->disks[i].name))
continue;
if (backupdisk->store) {
if (qemuDomainGetStatsBlockExportHeader(disk, backupdisk->store,
*recordnr, params) < 0)
return -1;
if (qemuDomainGetStatsOneBlock(driver, cfg, dom, params,
backupdisk->store->nodeformat,
backupdisk->store,
*recordnr,
stats) < 0)
return -1;
if (qemuDomainGetStatsBlockExportBackendStorage(backupdisk->store->nodestorage,
stats, *recordnr,
params) < 0)
return -1;
(*recordnr)++;
}
break;
}
}
}
return 0;
}
static int
qemuDomainGetStatsBlock(virQEMUDriver *driver,
virDomainObj *dom,
virTypedParamList *params,
unsigned int privflags)
{
size_t i;
int rc;
g_autoptr(GHashTable) stats = NULL;
qemuDomainObjPrivate *priv = dom->privateData;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
int count_index = -1;
size_t visited = 0;
bool visitBacking = !!(privflags & QEMU_DOMAIN_STATS_BACKING);
if (HAVE_JOB(privflags) && virDomainObjIsActive(dom)) {
qemuDomainObjEnterMonitor(dom);
rc = qemuMonitorGetAllBlockStatsInfo(priv->mon, &stats);
if (rc >= 0)
rc = qemuMonitorBlockStatsUpdateCapacityBlockdev(priv->mon, stats);
qemuDomainObjExitMonitor(dom);
/* failure to retrieve stats is fine at this point */
if (rc < 0)
virResetLastError();
}
/* When listing backing chains, it's easier to fix up the count
* after the iteration than it is to iterate twice; but we still
* want count listed first. */
count_index = params->npar;
if (virTypedParamListAddUInt(params, 0, "block.count") < 0)
return -1;
for (i = 0; i < dom->def->ndisks; i++) {
if (qemuDomainGetStatsBlockExportDisk(dom->def->disks[i], stats,
params, &visited,
visitBacking, driver, cfg, dom) < 0)
return -1;
}
params->par[count_index].value.ui = visited;
return 0;
}
static int
qemuDomainGetStatsIOThread(virQEMUDriver *driver G_GNUC_UNUSED,
virDomainObj *dom,
virTypedParamList *params,
unsigned int privflags)
{
size_t i;
qemuMonitorIOThreadInfo **iothreads = NULL;
int niothreads = 0;
int ret = -1;
if (!HAVE_JOB(privflags) || !virDomainObjIsActive(dom))
return 0;
if (qemuDomainGetIOThreadsMon(dom, &iothreads, &niothreads) < 0)
return -1;
/* qemuDomainGetIOThreadsMon returns a NULL-terminated list, so we must free
* it even if it returns 0 */
if (niothreads == 0) {
ret = 0;
goto cleanup;
}
if (virTypedParamListAddUInt(params, niothreads, "iothread.count") < 0)
goto cleanup;
for (i = 0; i < niothreads; i++) {
if (iothreads[i]->poll_valid) {
if (virTypedParamListAddULLong(params, iothreads[i]->poll_max_ns,
"iothread.%u.poll-max-ns",
iothreads[i]->iothread_id) < 0)
goto cleanup;
if (virTypedParamListAddUInt(params, iothreads[i]->poll_grow,
"iothread.%u.poll-grow",
iothreads[i]->iothread_id) < 0)
goto cleanup;
if (virTypedParamListAddUInt(params, iothreads[i]->poll_shrink,
"iothread.%u.poll-shrink",
iothreads[i]->iothread_id) < 0)
goto cleanup;
}
}
ret = 0;
cleanup:
for (i = 0; i < niothreads; i++)
VIR_FREE(iothreads[i]);
VIR_FREE(iothreads);
return ret;
}
static int
qemuDomainGetStatsPerfOneEvent(virPerf *perf,
virPerfEventType type,
virTypedParamList *params)
{
uint64_t value = 0;
if (virPerfReadEvent(perf, type, &value) < 0)
return -1;
if (virTypedParamListAddULLong(params, value, "perf.%s",
virPerfEventTypeToString(type)) < 0)
return -1;
return 0;
}
static int
qemuDomainGetStatsPerf(virQEMUDriver *driver G_GNUC_UNUSED,
virDomainObj *dom,
virTypedParamList *params,
unsigned int privflags G_GNUC_UNUSED)
{
size_t i;
qemuDomainObjPrivate *priv = dom->privateData;
for (i = 0; i < VIR_PERF_EVENT_LAST; i++) {
if (!virPerfEventIsEnabled(priv->perf, i))
continue;
if (qemuDomainGetStatsPerfOneEvent(priv->perf, i, params) < 0)
return -1;
}
return 0;
}
static int
qemuDomainGetStatsDirtyRateMon(virDomainObj *vm,
qemuMonitorDirtyRateInfo *info)
{
qemuDomainObjPrivate *priv = vm->privateData;
int ret;
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorQueryDirtyRate(priv->mon, info);
qemuDomainObjExitMonitor(vm);
return ret;
}
static int
qemuDomainGetStatsDirtyRate(virQEMUDriver *driver G_GNUC_UNUSED,
virDomainObj *dom,
virTypedParamList *params,
unsigned int privflags)
{
qemuMonitorDirtyRateInfo info;
if (!HAVE_JOB(privflags) || !virDomainObjIsActive(dom))
return 0;
if (qemuDomainGetStatsDirtyRateMon(dom, &info) < 0)
return -1;
if (virTypedParamListAddInt(params, info.status,
"dirtyrate.calc_status") < 0)
return -1;
if (virTypedParamListAddLLong(params, info.startTime,
"dirtyrate.calc_start_time") < 0)
return -1;
if (virTypedParamListAddInt(params, info.calcTime,
"dirtyrate.calc_period") < 0)
return -1;
if (virTypedParamListAddString(params,
qemuMonitorDirtyRateCalcModeTypeToString(info.mode),
"dirtyrate.calc_mode") < 0)
return -1;
if (info.status == VIR_DOMAIN_DIRTYRATE_MEASURED) {
if (virTypedParamListAddLLong(params, info.dirtyRate,
"dirtyrate.megabytes_per_second") < 0)
return -1;
if (info.mode == QEMU_MONITOR_DIRTYRATE_CALC_MODE_DIRTY_RING) {
size_t i;
for (i = 0; i < info.nvcpus; i++) {
if (virTypedParamListAddULLong(params, info.rates[i].value,
"dirtyrate.vcpu.%d.megabytes_per_second",
info.rates[i].idx) < 0)
return -1;
}
}
}
return 0;
}
typedef int
(*qemuDomainGetStatsFunc)(virQEMUDriver *driver,
virDomainObj *dom,
virTypedParamList *list,
unsigned int flags);
struct qemuDomainGetStatsWorker {
qemuDomainGetStatsFunc func;
unsigned int stats;
bool monitor;
virQEMUCapsFlags *requiredCaps;
};
static virQEMUCapsFlags queryIOThreadRequired[] = {
QEMU_CAPS_OBJECT_IOTHREAD,
QEMU_CAPS_LAST
};
static virQEMUCapsFlags queryDirtyRateRequired[] = {
QEMU_CAPS_QUERY_DIRTY_RATE,
QEMU_CAPS_LAST
};
static struct qemuDomainGetStatsWorker qemuDomainGetStatsWorkers[] = {
{ qemuDomainGetStatsState, VIR_DOMAIN_STATS_STATE, false, NULL },
{ qemuDomainGetStatsCpu, VIR_DOMAIN_STATS_CPU_TOTAL, false, NULL },
{ qemuDomainGetStatsBalloon, VIR_DOMAIN_STATS_BALLOON, true, NULL },
{ qemuDomainGetStatsVcpu, VIR_DOMAIN_STATS_VCPU, true, NULL },
{ qemuDomainGetStatsInterface, VIR_DOMAIN_STATS_INTERFACE, false, NULL },
{ qemuDomainGetStatsBlock, VIR_DOMAIN_STATS_BLOCK, true, NULL },
{ qemuDomainGetStatsPerf, VIR_DOMAIN_STATS_PERF, false, NULL },
{ qemuDomainGetStatsIOThread, VIR_DOMAIN_STATS_IOTHREAD, true, queryIOThreadRequired },
{ qemuDomainGetStatsMemory, VIR_DOMAIN_STATS_MEMORY, false, NULL },
{ qemuDomainGetStatsDirtyRate, VIR_DOMAIN_STATS_DIRTYRATE, true, queryDirtyRateRequired },
{ NULL, 0, false, NULL }
};
static int
qemuDomainGetStatsCheckSupport(unsigned int *stats,
bool enforce,
virDomainObj *vm)
{
qemuDomainObjPrivate *priv = vm->privateData;
unsigned int supportedstats = 0;
size_t i;
for (i = 0; qemuDomainGetStatsWorkers[i].func; i++) {
bool supportedByQemu = true;
virQEMUCapsFlags *requiredCaps = qemuDomainGetStatsWorkers[i].requiredCaps;
while (requiredCaps && *requiredCaps != QEMU_CAPS_LAST) {
if (!virQEMUCapsGet(priv->qemuCaps, *requiredCaps)) {
supportedByQemu = false;
break;
}
requiredCaps++;
}
if (supportedByQemu) {
supportedstats |= qemuDomainGetStatsWorkers[i].stats;
}
}
if (*stats == 0) {
*stats = supportedstats;
return 0;
}
if (enforce &&
*stats & ~supportedstats) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED,
_("Stats types bits 0x%x are not supported by this daemon or QEMU"),
*stats & ~supportedstats);
return -1;
}
*stats &= supportedstats;
return 0;
}
static bool
qemuDomainGetStatsNeedMonitor(unsigned int stats)
{
size_t i;
for (i = 0; qemuDomainGetStatsWorkers[i].func; i++)
if (stats & qemuDomainGetStatsWorkers[i].stats &&
qemuDomainGetStatsWorkers[i].monitor)
return true;
return false;
}
static int
qemuDomainGetStats(virConnectPtr conn,
virDomainObj *dom,
unsigned int stats,
virDomainStatsRecordPtr *record,
unsigned int flags)
{
g_autofree virDomainStatsRecordPtr tmp = NULL;
g_autoptr(virTypedParamList) params = NULL;
size_t i;
params = g_new0(virTypedParamList, 1);
for (i = 0; qemuDomainGetStatsWorkers[i].func; i++) {
if (stats & qemuDomainGetStatsWorkers[i].stats) {
if (qemuDomainGetStatsWorkers[i].func(conn->privateData, dom, params,
flags) < 0)
return -1;
}
}
tmp = g_new0(virDomainStatsRecord, 1);
if (!(tmp->dom = virGetDomain(conn, dom->def->name,
dom->def->uuid, dom->def->id)))
return -1;
tmp->nparams = virTypedParamListStealParams(params, &tmp->params);
*record = g_steal_pointer(&tmp);
return 0;
}
static int
qemuConnectGetAllDomainStats(virConnectPtr conn,
virDomainPtr *doms,
unsigned int ndoms,
unsigned int stats,
virDomainStatsRecordPtr **retStats,
unsigned int flags)
{
virQEMUDriver *driver = conn->privateData;
virErrorPtr orig_err = NULL;
virDomainObj **vms = NULL;
size_t nvms;
virDomainStatsRecordPtr *tmpstats = NULL;
bool enforce = !!(flags & VIR_CONNECT_GET_ALL_DOMAINS_STATS_ENFORCE_STATS);
int nstats = 0;
size_t i;
int ret = -1;
unsigned int lflags = flags & (VIR_CONNECT_LIST_DOMAINS_FILTERS_ACTIVE |
VIR_CONNECT_LIST_DOMAINS_FILTERS_PERSISTENT |
VIR_CONNECT_LIST_DOMAINS_FILTERS_STATE);
virCheckFlags(VIR_CONNECT_LIST_DOMAINS_FILTERS_ACTIVE |
VIR_CONNECT_LIST_DOMAINS_FILTERS_PERSISTENT |
VIR_CONNECT_LIST_DOMAINS_FILTERS_STATE |
VIR_CONNECT_GET_ALL_DOMAINS_STATS_NOWAIT |
VIR_CONNECT_GET_ALL_DOMAINS_STATS_BACKING |
VIR_CONNECT_GET_ALL_DOMAINS_STATS_ENFORCE_STATS, -1);
if (virConnectGetAllDomainStatsEnsureACL(conn) < 0)
return -1;
if (ndoms) {
if (virDomainObjListConvert(driver->domains, conn, doms, ndoms, &vms,
&nvms, virConnectGetAllDomainStatsCheckACL,
lflags, true) < 0)
return -1;
} else {
if (virDomainObjListCollect(driver->domains, conn, &vms, &nvms,
virConnectGetAllDomainStatsCheckACL,
lflags) < 0)
return -1;
}
tmpstats = g_new0(virDomainStatsRecordPtr, nvms + 1);
for (i = 0; i < nvms; i++) {
virDomainObj *vm = vms[i];
virDomainStatsRecordPtr tmp = NULL;
unsigned int privflags = 0;
unsigned int requestedStats = stats;
unsigned int domflags = 0;
int rc;
if (flags & VIR_CONNECT_GET_ALL_DOMAINS_STATS_BACKING)
domflags |= QEMU_DOMAIN_STATS_BACKING;
virObjectLock(vm);
if (qemuDomainGetStatsCheckSupport(&requestedStats, enforce, vm) < 0) {
virObjectUnlock(vm);
goto cleanup;
}
if (qemuDomainGetStatsNeedMonitor(requestedStats))
privflags |= QEMU_DOMAIN_STATS_HAVE_JOB;
if (HAVE_JOB(privflags)) {
int rv;
if (flags & VIR_CONNECT_GET_ALL_DOMAINS_STATS_NOWAIT)
rv = qemuDomainObjBeginJobNowait(vm, VIR_JOB_QUERY);
else
rv = qemuDomainObjBeginJob(vm, VIR_JOB_QUERY);
if (rv == 0)
domflags |= QEMU_DOMAIN_STATS_HAVE_JOB;
}
/* else: without a job it's still possible to gather some data */
rc = qemuDomainGetStats(conn, vm, requestedStats, &tmp, domflags);
if (HAVE_JOB(domflags))
qemuDomainObjEndJob(vm);
virObjectUnlock(vm);
if (rc < 0)
goto cleanup;
tmpstats[nstats++] = tmp;
}
*retStats = g_steal_pointer(&tmpstats);
ret = nstats;
cleanup:
virErrorPreserveLast(&orig_err);
virDomainStatsRecordListFree(tmpstats);
virObjectListFreeCount(vms, nvms);
virErrorRestore(&orig_err);
return ret;
}
static int
qemuNodeAllocPages(virConnectPtr conn,
unsigned int npages,
unsigned int *pageSizes,
unsigned long long *pageCounts,
int startCell,
unsigned int cellCount,
unsigned int flags)
{
virQEMUDriver *driver = conn->privateData;
g_autoptr(virCaps) caps = NULL;
int lastCell;
bool add = !(flags & VIR_NODE_ALLOC_PAGES_SET);
virCheckFlags(VIR_NODE_ALLOC_PAGES_SET, -1);
if (virNodeAllocPagesEnsureACL(conn) < 0)
return -1;
if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
return -1;
lastCell = virCapabilitiesHostNUMAGetMaxNode(caps->host.numa);
return virHostMemAllocPages(npages, pageSizes, pageCounts,
startCell, cellCount,
lastCell, add);
}
static int
qemuDomainGetFSInfoAgent(virDomainObj *vm,
qemuAgentFSInfo ***info)
{
int ret = -1;
qemuAgent *agent;
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_QUERY) < 0)
return ret;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!qemuDomainAgentAvailable(vm, true))
goto endjob;
agent = qemuDomainObjEnterAgent(vm);
ret = qemuAgentGetFSInfo(agent, info, true);
qemuDomainObjExitAgent(vm, agent);
endjob:
qemuDomainObjEndAgentJob(vm);
return ret;
}
static virDomainFSInfoPtr
qemuAgentFSInfoToPublic(qemuAgentFSInfo *agent,
virDomainDef *vmdef)
{
virDomainFSInfoPtr ret = NULL;
size_t i;
ret = g_new0(virDomainFSInfo, 1);
ret->mountpoint = g_strdup(agent->mountpoint);
ret->name = g_strdup(agent->name);
ret->fstype = g_strdup(agent->fstype);
if (agent->disks)
ret->devAlias = g_new0(char *, agent->ndisks);
for (i = 0; i < agent->ndisks; i++) {
qemuAgentDiskAddress *agentdisk = agent->disks[i];
virDomainDiskDef *diskDef;
diskDef = virDomainDiskByAddress(vmdef,
&agentdisk->pci_controller,
agentdisk->ccw_addr,
agentdisk->bus,
agentdisk->target,
agentdisk->unit);
if (diskDef != NULL)
ret->devAlias[ret->ndevAlias++] = g_strdup(diskDef->dst);
else
VIR_DEBUG("Missing target name for '%s'.", ret->mountpoint);
}
return ret;
}
/* Returns: 0 on success
* -1 otherwise
*/
static int
virDomainFSInfoFormat(qemuAgentFSInfo **agentinfo,
int nagentinfo,
virDomainDef *vmdef,
virDomainFSInfoPtr **info)
{
int ret = -1;
virDomainFSInfoPtr *info_ret = NULL;
size_t i;
info_ret = g_new0(virDomainFSInfoPtr, nagentinfo);
for (i = 0; i < nagentinfo; i++) {
if (!(info_ret[i] = qemuAgentFSInfoToPublic(agentinfo[i], vmdef)))
goto cleanup;
}
*info = g_steal_pointer(&info_ret);
ret = nagentinfo;
cleanup:
if (info_ret) {
for (i = 0; i < nagentinfo; i++) {
/* if there was an error, free any memory we've allocated for the
* return value */
virDomainFSInfoFree(info_ret[i]);
}
g_free(info_ret);
}
return ret;
}
static int
qemuDomainGetFSInfo(virDomainPtr dom,
virDomainFSInfoPtr **info,
unsigned int flags)
{
virDomainObj *vm;
qemuAgentFSInfo **agentinfo = NULL;
int ret = -1;
int nfs = 0;
virCheckFlags(0, ret);
if (!(vm = qemuDomainObjFromDomain(dom)))
return ret;
if (virDomainGetFSInfoEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if ((nfs = qemuDomainGetFSInfoAgent(vm, &agentinfo)) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
ret = virDomainFSInfoFormat(agentinfo, nfs, vm->def, info);
endjob:
qemuDomainObjEndJob(vm);
cleanup:
if (agentinfo) {
size_t i;
for (i = 0; i < nfs; i++)
qemuAgentFSInfoFree(agentinfo[i]);
g_free(agentinfo);
}
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainInterfaceAddresses(virDomainPtr dom,
virDomainInterfacePtr **ifaces,
unsigned int source,
unsigned int flags)
{
virDomainObj *vm = NULL;
qemuAgent *agent;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainInterfaceAddressesEnsureACL(dom->conn, vm->def, source) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
switch (source) {
case VIR_DOMAIN_INTERFACE_ADDRESSES_SRC_LEASE:
ret = virDomainNetDHCPInterfaces(vm->def, ifaces);
break;
case VIR_DOMAIN_INTERFACE_ADDRESSES_SRC_AGENT:
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_QUERY) < 0)
goto cleanup;
if (!qemuDomainAgentAvailable(vm, true))
goto endjob;
agent = qemuDomainObjEnterAgent(vm);
ret = qemuAgentGetInterfaces(agent, ifaces, true);
qemuDomainObjExitAgent(vm, agent);
endjob:
qemuDomainObjEndAgentJob(vm);
break;
case VIR_DOMAIN_INTERFACE_ADDRESSES_SRC_ARP:
ret = virDomainNetARPInterfaces(vm->def, ifaces);
break;
default:
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED,
_("Unknown IP address data source %d"),
source);
break;
}
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainSetUserPassword(virDomainPtr dom,
const char *user,
const char *password,
unsigned int flags)
{
virDomainObj *vm;
qemuAgent *agent;
int ret = -1;
int rv;
virCheckFlags(VIR_DOMAIN_PASSWORD_ENCRYPTED, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return ret;
if (virDomainSetUserPasswordEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!qemuDomainAgentAvailable(vm, true))
goto endjob;
agent = qemuDomainObjEnterAgent(vm);
rv = qemuAgentSetUserPassword(agent, user, password,
flags & VIR_DOMAIN_PASSWORD_ENCRYPTED);
qemuDomainObjExitAgent(vm, agent);
if (rv < 0)
goto endjob;
ret = 0;
endjob:
qemuDomainObjEndAgentJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
struct qemuDomainMomentWriteMetadataData {
virQEMUDriver *driver;
virDomainObj *vm;
};
static int
qemuDomainSnapshotWriteMetadataIter(void *payload,
const char *name G_GNUC_UNUSED,
void *opaque)
{
struct qemuDomainMomentWriteMetadataData *data = opaque;
virQEMUDriverConfig *cfg = virQEMUDriverGetConfig(data->driver);
int ret;
ret = qemuDomainSnapshotWriteMetadata(data->vm, payload,
data->driver->xmlopt,
cfg->snapshotDir);
virObjectUnref(cfg);
return ret;
}
static int
qemuDomainCheckpointWriteMetadataIter(void *payload,
const char *name G_GNUC_UNUSED,
void *opaque)
{
struct qemuDomainMomentWriteMetadataData *data = opaque;
virQEMUDriverConfig *cfg = virQEMUDriverGetConfig(data->driver);
int ret;
ret = qemuCheckpointWriteMetadata(data->vm, payload,
data->driver->xmlopt,
cfg->snapshotDir);
virObjectUnref(cfg);
return ret;
}
static int
qemuDomainRenameCallback(virDomainObj *vm,
const char *new_name,
unsigned int flags,
void *opaque)
{
virQEMUDriver *driver = opaque;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virObjectEvent *event_new = NULL;
virObjectEvent *event_old = NULL;
int ret = -1;
virErrorPtr err = NULL;
g_autofree char *new_dom_name = NULL;
g_autofree char *old_dom_name = NULL;
g_autofree char *new_dom_cfg_file = NULL;
g_autofree char *old_dom_cfg_file = NULL;
g_autofree char *new_dom_autostart_link = NULL;
g_autofree char *old_dom_autostart_link = NULL;
struct qemuDomainMomentWriteMetadataData data = {
.driver = driver,
.vm = vm,
};
virCheckFlags(0, ret);
if (strchr(new_name, '/')) {
virReportError(VIR_ERR_XML_ERROR,
_("name %s cannot contain '/'"), new_name);
return -1;
}
cfg = virQEMUDriverGetConfig(driver);
new_dom_name = g_strdup(new_name);
if (!(new_dom_cfg_file = virDomainConfigFile(cfg->configDir,
new_dom_name)) ||
!(old_dom_cfg_file = virDomainConfigFile(cfg->configDir,
vm->def->name)))
return -1;
if (qemuDomainNamePathsCleanup(cfg, new_name, false) < 0)
goto cleanup;
if (vm->autostart) {
if (!(new_dom_autostart_link = virDomainConfigFile(cfg->autostartDir,
new_dom_name)) ||
!(old_dom_autostart_link = virDomainConfigFile(cfg->autostartDir,
vm->def->name)))
return -1;
if (symlink(new_dom_cfg_file, new_dom_autostart_link) < 0) {
virReportSystemError(errno,
_("Failed to create symlink '%s to '%s'"),
new_dom_autostart_link, new_dom_cfg_file);
return -1;
}
}
/* Switch name in domain definition. */
old_dom_name = vm->def->name;
vm->def->name = new_dom_name;
new_dom_name = NULL;
if (virDomainSnapshotForEach(vm->snapshots,
qemuDomainSnapshotWriteMetadataIter,
&data) < 0)
goto cleanup;
if (virDomainCheckpointForEach(vm->checkpoints,
qemuDomainCheckpointWriteMetadataIter,
&data) < 0)
goto cleanup;
if (virDomainDefSave(vm->def, driver->xmlopt, cfg->configDir) < 0)
goto cleanup;
event_old = virDomainEventLifecycleNew(vm->def->id, old_dom_name, vm->def->uuid,
VIR_DOMAIN_EVENT_UNDEFINED,
VIR_DOMAIN_EVENT_UNDEFINED_RENAMED);
event_new = virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_DEFINED,
VIR_DOMAIN_EVENT_DEFINED_RENAMED);
virObjectEventStateQueue(driver->domainEventState, event_old);
virObjectEventStateQueue(driver->domainEventState, event_new);
ret = 0;
cleanup:
if (old_dom_name && ret < 0) {
new_dom_name = vm->def->name;
vm->def->name = old_dom_name;
old_dom_name = NULL;
}
if (ret < 0)
virErrorPreserveLast(&err);
qemuDomainNamePathsCleanup(cfg, ret < 0 ? new_dom_name : old_dom_name, true);
virErrorRestore(&err);
return ret;
}
static int qemuDomainRename(virDomainPtr dom,
const char *new_name,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
int ret = -1;
virCheckFlags(0, ret);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainRenameEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot rename active domain"));
goto endjob;
}
if (!vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot rename a transient domain"));
goto endjob;
}
if (vm->hasManagedSave) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("domain with a managed saved state can't be renamed"));
goto endjob;
}
if (virDomainObjGetState(vm, NULL) != VIR_DOMAIN_SHUTOFF) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain has to be shutoff before renaming"));
goto endjob;
}
if (virDomainObjListRename(driver->domains, vm, new_name, flags,
qemuDomainRenameCallback, driver) < 0)
goto endjob;
/* Success, domain has been renamed. */
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetGuestVcpusParams(virTypedParameterPtr *params,
unsigned int *nparams,
qemuAgentCPUInfo *info,
int ninfo)
{
virTypedParameterPtr par = NULL;
int npar = 0;
int maxpar = 0;
g_autoptr(virBitmap) vcpus = virBitmapNew(QEMU_GUEST_VCPU_MAX_ID);
g_autoptr(virBitmap) online = virBitmapNew(QEMU_GUEST_VCPU_MAX_ID);
g_autoptr(virBitmap) offlinable = virBitmapNew(QEMU_GUEST_VCPU_MAX_ID);
g_autofree char *tmp = NULL;
size_t i;
int ret = -1;
for (i = 0; i < ninfo; i++) {
if (virBitmapSetBit(vcpus, info[i].id) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("vcpu id '%u' reported by guest agent is out of "
"range"), info[i].id);
goto cleanup;
}
if (info[i].online)
ignore_value(virBitmapSetBit(online, info[i].id));
if (info[i].offlinable)
ignore_value(virBitmapSetBit(offlinable, info[i].id));
}
#define ADD_BITMAP(name) \
if (!(tmp = virBitmapFormat(name))) \
goto cleanup; \
if (virTypedParamsAddString(&par, &npar, &maxpar, #name, tmp) < 0) \
goto cleanup; \
ADD_BITMAP(vcpus);
ADD_BITMAP(online);
ADD_BITMAP(offlinable);
#undef ADD_BITMAP
*nparams = npar;
*params = g_steal_pointer(&par);
ret = 0;
cleanup:
virTypedParamsFree(par, npar);
return ret;
}
static int
qemuDomainGetGuestVcpus(virDomainPtr dom,
virTypedParameterPtr *params,
unsigned int *nparams,
unsigned int flags)
{
virDomainObj *vm = NULL;
qemuAgent *agent;
qemuAgentCPUInfo *info = NULL;
int ninfo = 0;
int ret = -1;
virCheckFlags(0, ret);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainGetGuestVcpusEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_QUERY) < 0)
goto cleanup;
if (!qemuDomainAgentAvailable(vm, true))
goto endjob;
agent = qemuDomainObjEnterAgent(vm);
ninfo = qemuAgentGetVCPUs(agent, &info);
qemuDomainObjExitAgent(vm, agent);
if (ninfo < 0)
goto endjob;
if (qemuDomainGetGuestVcpusParams(params, nparams, info, ninfo) < 0)
goto endjob;
ret = 0;
endjob:
qemuDomainObjEndAgentJob(vm);
cleanup:
VIR_FREE(info);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainSetGuestVcpus(virDomainPtr dom,
const char *cpumap,
int state,
unsigned int flags)
{
virDomainObj *vm = NULL;
g_autoptr(virBitmap) map = NULL;
qemuAgentCPUInfo *info = NULL;
qemuAgent *agent;
int ninfo = 0;
size_t i;
int ret = -1;
virCheckFlags(0, -1);
if (state != 0 && state != 1) {
virReportInvalidArg(state, "%s", _("unsupported state value"));
return -1;
}
if (virBitmapParse(cpumap, &map, QEMU_GUEST_VCPU_MAX_ID) < 0)
goto cleanup;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainSetGuestVcpusEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_MODIFY) < 0)
goto cleanup;
if (!qemuDomainAgentAvailable(vm, true))
goto endjob;
agent = qemuDomainObjEnterAgent(vm);
ninfo = qemuAgentGetVCPUs(agent, &info);
qemuDomainObjExitAgent(vm, agent);
agent = NULL;
if (ninfo < 0)
goto endjob;
for (i = 0; i < ninfo; i++) {
if (!virBitmapIsBitSet(map, info[i].id))
continue;
if (!state && !info[i].offlinable) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("vCPU '%u' is not offlinable"), info[i].id);
goto endjob;
}
info[i].online = !!state;
info[i].modified = true;
ignore_value(virBitmapClearBit(map, info[i].id));
}
if (!virBitmapIsAllClear(map)) {
char *tmp = virBitmapFormat(map);
virReportError(VIR_ERR_INVALID_ARG,
_("guest is missing vCPUs '%s'"), NULLSTR(tmp));
VIR_FREE(tmp);
goto endjob;
}
if (!qemuDomainAgentAvailable(vm, true))
goto endjob;
agent = qemuDomainObjEnterAgent(vm);
ret = qemuAgentSetVCPUs(agent, info, ninfo);
qemuDomainObjExitAgent(vm, agent);
endjob:
qemuDomainObjEndAgentJob(vm);
cleanup:
VIR_FREE(info);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainSetVcpu(virDomainPtr dom,
const char *cpumap,
int state,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
virDomainDef *def = NULL;
virDomainDef *persistentDef = NULL;
g_autoptr(virBitmap) map = NULL;
ssize_t lastvcpu;
int ret = -1;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (state != 0 && state != 1) {
virReportInvalidArg(state, "%s", _("unsupported state value"));
return -1;
}
if (virBitmapParse(cpumap, &map, QEMU_GUEST_VCPU_MAX_ID) < 0)
goto cleanup;
if ((lastvcpu = virBitmapLastSetBit(map)) < 0) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("no vcpus selected for modification"));
goto cleanup;
}
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainSetVcpuEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
if (persistentDef) {
if (lastvcpu >= virDomainDefGetVcpusMax(persistentDef)) {
virReportError(VIR_ERR_INVALID_ARG,
_("vcpu %zd is not present in persistent config"),
lastvcpu);
goto endjob;
}
}
if (def) {
if (lastvcpu >= virDomainDefGetVcpusMax(def)) {
virReportError(VIR_ERR_INVALID_ARG,
_("vcpu %zd is not present in live config"),
lastvcpu);
goto endjob;
}
}
ret = qemuDomainSetVcpuInternal(driver, vm, def, persistentDef, map, !!state);
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainSetBlockThreshold(virDomainPtr dom,
const char *dev,
unsigned long long threshold,
unsigned int flags)
{
qemuDomainObjPrivate *priv;
virDomainObj *vm = NULL;
virStorageSource *src;
g_autofree char *nodename = NULL;
int rc;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
priv = vm->privateData;
if (virDomainSetBlockThresholdEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCK_WRITE_THRESHOLD)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("this qemu does not support setting device threshold"));
goto endjob;
}
if (!(src = qemuDomainGetStorageSourceByDevstr(dev, vm->def, priv->backup)))
goto endjob;
if (virStorageSourceGetActualType(src) == VIR_STORAGE_TYPE_VHOST_USER) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("setting device threshold is not supported for vhostuser disk"));
goto endjob;
}
nodename = g_strdup(src->nodestorage);
qemuDomainObjEnterMonitor(vm);
rc = qemuMonitorSetBlockThreshold(priv->mon, nodename, threshold);
qemuDomainObjExitMonitor(vm);
if (rc < 0)
goto endjob;
/* we need to remember whether the threshold was registered with an explicit
* index to fire the correct event */
src->thresholdEventWithIndex = !!strchr(dev, '[');
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainSetLifecycleActionValidate(virDomainDef *def,
virDomainLifecycle type,
virDomainLifecycleAction action)
{
virDomainLifecycleAction onPoweroff = def->onPoweroff;
virDomainLifecycleAction onReboot = def->onReboot;
virDomainLifecycleAction onCrash = def->onCrash;
switch (type) {
case VIR_DOMAIN_LIFECYCLE_POWEROFF:
onPoweroff = action;
break;
case VIR_DOMAIN_LIFECYCLE_REBOOT:
onReboot = action;
break;
case VIR_DOMAIN_LIFECYCLE_CRASH:
onCrash = action;
break;
case VIR_DOMAIN_LIFECYCLE_LAST:
break;
}
if (qemuValidateLifecycleAction(onPoweroff, onReboot, onCrash) < 0)
return -1;
return 0;
}
static void
qemuDomainModifyLifecycleAction(virDomainDef *def,
virDomainLifecycle type,
virDomainLifecycleAction action)
{
switch (type) {
case VIR_DOMAIN_LIFECYCLE_POWEROFF:
def->onPoweroff = action;
break;
case VIR_DOMAIN_LIFECYCLE_REBOOT:
def->onReboot = action;
break;
case VIR_DOMAIN_LIFECYCLE_CRASH:
def->onCrash = action;
break;
case VIR_DOMAIN_LIFECYCLE_LAST:
break;
}
}
static int
qemuDomainModifyLifecycleActionLive(virDomainObj *vm,
virDomainLifecycle type,
virDomainLifecycleAction action)
{
qemuMonitorActionReboot monReboot = QEMU_MONITOR_ACTION_REBOOT_KEEP;
qemuDomainObjPrivate *priv = vm->privateData;
int rc;
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_SET_ACTION))
return 0;
/* For now we only update 'reboot' action here as we want to keep the
* shutdown action as is (we're emulating the outcome anyways)) */
if (type != VIR_DOMAIN_LIFECYCLE_REBOOT ||
vm->def->onReboot == action)
return 0;
switch (action) {
case VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY:
monReboot = QEMU_MONITOR_ACTION_REBOOT_SHUTDOWN;
break;
case VIR_DOMAIN_LIFECYCLE_ACTION_RESTART:
monReboot = QEMU_MONITOR_ACTION_REBOOT_RESET;
break;
case VIR_DOMAIN_LIFECYCLE_ACTION_PRESERVE:
case VIR_DOMAIN_LIFECYCLE_ACTION_RESTART_RENAME:
case VIR_DOMAIN_LIFECYCLE_ACTION_COREDUMP_DESTROY:
case VIR_DOMAIN_LIFECYCLE_ACTION_COREDUMP_RESTART:
case VIR_DOMAIN_LIFECYCLE_ACTION_LAST:
return 0;
}
qemuDomainObjEnterMonitor(vm);
rc = qemuMonitorSetAction(priv->mon,
QEMU_MONITOR_ACTION_SHUTDOWN_KEEP,
monReboot,
QEMU_MONITOR_ACTION_WATCHDOG_KEEP,
QEMU_MONITOR_ACTION_PANIC_KEEP);
qemuDomainObjExitMonitor(vm);
if (rc < 0)
return -1;
return 0;
}
static int
qemuDomainSetLifecycleAction(virDomainPtr dom,
unsigned int type,
unsigned int action,
unsigned int flags)
{
virQEMUDriver *driver = dom->conn->privateData;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
qemuDomainObjPrivate *priv;
virDomainObj *vm = NULL;
virDomainDef *def = NULL;
virDomainDef *persistentDef = NULL;
int ret = -1;
/* note that 'action' and 'type' are range-checked in the public API wrapper */
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (!virDomainDefLifecycleActionAllowed(type, action))
goto cleanup;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
priv = vm->privateData;
if (virDomainSetLifecycleActionEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
if ((def && qemuDomainSetLifecycleActionValidate(def, type, action) < 0) ||
(persistentDef && qemuDomainSetLifecycleActionValidate(persistentDef, type, action) < 0))
goto endjob;
if (def) {
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_SET_ACTION)) {
if (priv->allowReboot == VIR_TRISTATE_BOOL_NO ||
(type == VIR_DOMAIN_LIFECYCLE_REBOOT &&
def->onReboot != action)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("cannot update lifecycle action because QEMU was started with incompatible -no-reboot setting"));
goto endjob;
}
}
if (qemuDomainModifyLifecycleActionLive(vm, type, action) < 0)
goto endjob;
qemuDomainModifyLifecycleAction(def, type, action);
qemuDomainSaveStatus(vm);
}
if (persistentDef) {
qemuDomainModifyLifecycleAction(persistentDef, type, action);
if (virDomainDefSave(persistentDef, driver->xmlopt,
cfg->configDir) < 0)
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuGetSEVInfoToParams(virQEMUCaps *qemuCaps,
virTypedParameterPtr *params,
int *nparams,
unsigned int flags)
{
int maxpar = 0;
int n = 0;
virSEVCapability *sev = virQEMUCapsGetSEVCapabilities(qemuCaps);
virTypedParameterPtr sevParams = NULL;
virCheckFlags(VIR_TYPED_PARAM_STRING_OKAY, -1);
if (virTypedParamsAddString(&sevParams, &n, &maxpar,
VIR_NODE_SEV_PDH, sev->pdh) < 0)
return -1;
if (virTypedParamsAddString(&sevParams, &n, &maxpar,
VIR_NODE_SEV_CERT_CHAIN, sev->cert_chain) < 0)
goto cleanup;
if ((sev->cpu0_id != NULL) &&
(virTypedParamsAddString(&sevParams, &n, &maxpar,
VIR_NODE_SEV_CPU0_ID, sev->cpu0_id) < 0))
goto cleanup;
if (virTypedParamsAddUInt(&sevParams, &n, &maxpar,
VIR_NODE_SEV_CBITPOS, sev->cbitpos) < 0)
goto cleanup;
if (virTypedParamsAddUInt(&sevParams, &n, &maxpar,
VIR_NODE_SEV_REDUCED_PHYS_BITS,
sev->reduced_phys_bits) < 0)
goto cleanup;
if (virTypedParamsAddUInt(&sevParams, &n, &maxpar,
VIR_NODE_SEV_MAX_GUESTS,
sev->max_guests) < 0)
goto cleanup;
if (virTypedParamsAddUInt(&sevParams, &n, &maxpar,
VIR_NODE_SEV_MAX_ES_GUESTS,
sev->max_es_guests) < 0)
goto cleanup;
*params = g_steal_pointer(&sevParams);
*nparams = n;
return 0;
cleanup:
virTypedParamsFree(sevParams, n);
return -1;
}
static int
qemuNodeGetSEVInfo(virConnectPtr conn,
virTypedParameterPtr *params,
int *nparams,
unsigned int flags)
{
virQEMUDriver *driver = conn->privateData;
g_autoptr(virQEMUCaps) qemucaps = NULL;
if (virNodeGetSevInfoEnsureACL(conn) < 0)
return -1;
qemucaps = virQEMUCapsCacheLookupDefault(driver->qemuCapsCache,
NULL, NULL, NULL, NULL,
NULL, NULL, NULL);
if (!qemucaps)
return -1;
if (!virQEMUCapsGet(qemucaps, QEMU_CAPS_SEV_GUEST)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("QEMU does not support SEV guest"));
return -1;
}
if (qemuGetSEVInfoToParams(qemucaps, params, nparams, flags) < 0)
return -1;
return 0;
}
static int
qemuDomainGetSEVInfo(virDomainObj *vm,
virTypedParameterPtr *params,
int *nparams,
unsigned int flags)
{
int ret = -1;
int rv;
g_autofree char *tmp = NULL;
unsigned int apiMajor = 0;
unsigned int apiMinor = 0;
unsigned int buildID = 0;
unsigned int policy = 0;
int maxpar = 0;
virCheckFlags(VIR_TYPED_PARAM_STRING_OKAY, -1);
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
return -1;
if (virDomainObjCheckActive(vm) < 0) {
goto endjob;
}
qemuDomainObjEnterMonitor(vm);
tmp = qemuMonitorGetSEVMeasurement(QEMU_DOMAIN_PRIVATE(vm)->mon);
if (!tmp) {
qemuDomainObjExitMonitor(vm);
goto endjob;
}
rv = qemuMonitorGetSEVInfo(QEMU_DOMAIN_PRIVATE(vm)->mon,
&apiMajor, &apiMinor, &buildID, &policy);
qemuDomainObjExitMonitor(vm);
if (rv < 0)
goto endjob;
if (virTypedParamsAddString(params, nparams, &maxpar,
VIR_DOMAIN_LAUNCH_SECURITY_SEV_MEASUREMENT,
tmp) < 0)
goto endjob;
if (virTypedParamsAddUInt(params, nparams, &maxpar,
VIR_DOMAIN_LAUNCH_SECURITY_SEV_API_MAJOR,
apiMajor) < 0)
goto endjob;
if (virTypedParamsAddUInt(params, nparams, &maxpar,
VIR_DOMAIN_LAUNCH_SECURITY_SEV_API_MINOR,
apiMinor) < 0)
goto endjob;
if (virTypedParamsAddUInt(params, nparams, &maxpar,
VIR_DOMAIN_LAUNCH_SECURITY_SEV_BUILD_ID,
buildID) < 0)
goto endjob;
if (virTypedParamsAddUInt(params, nparams, &maxpar,
VIR_DOMAIN_LAUNCH_SECURITY_SEV_POLICY,
policy) < 0)
goto endjob;
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
return ret;
}
static int
qemuDomainGetLaunchSecurityInfo(virDomainPtr domain,
virTypedParameterPtr *params,
int *nparams,
unsigned int flags)
{
virDomainObj *vm;
int ret = -1;
if (!(vm = qemuDomainObjFromDomain(domain)))
goto cleanup;
if (virDomainGetLaunchSecurityInfoEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
if (vm->def->sec &&
vm->def->sec->sectype == VIR_DOMAIN_LAUNCH_SECURITY_SEV) {
if (qemuDomainGetSEVInfo(vm, params, nparams, flags) < 0)
goto cleanup;
}
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainSetLaunchSecurityState(virDomainPtr domain,
virTypedParameterPtr params,
int nparams,
unsigned int flags)
{
virDomainObj *vm;
int ret = -1;
int rc;
const char *secrethdr = NULL;
const char *secret = NULL;
unsigned long long setaddr = 0;
bool hasSetaddr = false;
int state;
qemuDomainObjPrivate *priv;
virCheckFlags(0, -1);
if (virTypedParamsValidate(params, nparams,
VIR_DOMAIN_LAUNCH_SECURITY_SEV_SECRET_HEADER,
VIR_TYPED_PARAM_STRING,
VIR_DOMAIN_LAUNCH_SECURITY_SEV_SECRET,
VIR_TYPED_PARAM_STRING,
VIR_DOMAIN_LAUNCH_SECURITY_SEV_SECRET_SET_ADDRESS,
VIR_TYPED_PARAM_ULLONG,
NULL) < 0)
return -1;
if (!(vm = qemuDomainObjFromDomain(domain)))
goto cleanup;
priv = vm->privateData;
if (virDomainSetLaunchSecurityStateEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
/* Currently only SEV is supported */
if (!vm->def->sec ||
vm->def->sec->sectype != VIR_DOMAIN_LAUNCH_SECURITY_SEV) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("setting a launch secret is only supported in SEV-enabled domains"));
goto cleanup;
}
if (virTypedParamsGetString(params, nparams,
VIR_DOMAIN_LAUNCH_SECURITY_SEV_SECRET_HEADER,
&secrethdr) < 0 ||
virTypedParamsGetString(params, nparams,
VIR_DOMAIN_LAUNCH_SECURITY_SEV_SECRET,
&secret) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s",
_("Both secret and the secret header are required"));
goto cleanup;
}
if ((rc = virTypedParamsGetULLong(params, nparams,
VIR_DOMAIN_LAUNCH_SECURITY_SEV_SECRET_SET_ADDRESS,
&setaddr)) < 0)
goto cleanup;
else if (rc == 1)
hasSetaddr = true;
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
state = virDomainObjGetState(vm, NULL);
if (state != VIR_DOMAIN_PAUSED) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain must be in a paused state"));
goto endjob;
}
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_SEV_INJECT_LAUNCH_SECRET)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("QEMU does not support setting a launch secret"));
goto endjob;
}
qemuDomainObjEnterMonitor(vm);
rc = qemuMonitorSetLaunchSecurityState(QEMU_DOMAIN_PRIVATE(vm)->mon,
secrethdr, secret, setaddr, hasSetaddr);
qemuDomainObjExitMonitor(vm);
if (rc < 0)
goto endjob;
ret = 0;
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static const unsigned int qemuDomainGetGuestInfoSupportedTypes =
VIR_DOMAIN_GUEST_INFO_USERS |
VIR_DOMAIN_GUEST_INFO_OS |
VIR_DOMAIN_GUEST_INFO_TIMEZONE |
VIR_DOMAIN_GUEST_INFO_HOSTNAME |
VIR_DOMAIN_GUEST_INFO_FILESYSTEM |
VIR_DOMAIN_GUEST_INFO_DISKS |
VIR_DOMAIN_GUEST_INFO_INTERFACES;
static int
qemuDomainGetGuestInfoCheckSupport(unsigned int types,
unsigned int *supportedTypes)
{
if (types == 0) {
*supportedTypes = qemuDomainGetGuestInfoSupportedTypes;
return 0;
}
*supportedTypes = types & qemuDomainGetGuestInfoSupportedTypes;
if (types != *supportedTypes) {
virReportError(VIR_ERR_INVALID_ARG,
_("unsupported guest information types '0x%x'"),
types & ~qemuDomainGetGuestInfoSupportedTypes);
return -1;
}
return 0;
}
static void
qemuAgentDiskInfoFormatParams(qemuAgentDiskInfo **info,
int ndisks,
virDomainDef *vmdef,
virTypedParameterPtr *params,
int *nparams, int *maxparams)
{
size_t i, j, ndeps;
if (virTypedParamsAddUInt(params, nparams, maxparams,
"disk.count", ndisks) < 0)
return;
for (i = 0; i < ndisks; i++) {
char param_name[VIR_TYPED_PARAM_FIELD_LENGTH];
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"disk.%zu.name", i);
if (virTypedParamsAddString(params, nparams, maxparams,
param_name, info[i]->name) < 0)
return;
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"disk.%zu.partition", i);
if (virTypedParamsAddBoolean(params, nparams, maxparams,
param_name, info[i]->partition) < 0)
return;
if (info[i]->dependencies) {
ndeps = g_strv_length(info[i]->dependencies);
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"disk.%zu.dependency.count", i);
if (ndeps &&
virTypedParamsAddUInt(params, nparams, maxparams,
param_name, ndeps) < 0)
return;
for (j = 0; j < ndeps; j++) {
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"disk.%zu.dependency.%zu.name", i, j);
if (virTypedParamsAddString(params, nparams, maxparams,
param_name, info[i]->dependencies[j]) < 0)
return;
}
}
if (info[i]->address) {
qemuAgentDiskAddress *address = info[i]->address;
virDomainDiskDef *diskdef = NULL;
if (address->serial) {
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"disk.%zu.serial", i);
if (virTypedParamsAddString(params, nparams, maxparams,
param_name, address->serial) < 0)
return;
}
/* match the disk to the target in the vm definition */
diskdef = virDomainDiskByAddress(vmdef,
&address->pci_controller,
address->ccw_addr,
address->bus,
address->target,
address->unit);
if (diskdef) {
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"disk.%zu.alias", i);
if (diskdef->dst &&
virTypedParamsAddString(params, nparams, maxparams,
param_name, diskdef->dst) < 0)
return;
}
}
if (info[i]->alias) {
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"disk.%zu.guest_alias", i);
if (virTypedParamsAddString(params, nparams, maxparams,
param_name, info[i]->alias) < 0)
return;
}
}
}
static void
qemuAgentFSInfoFormatParams(qemuAgentFSInfo **fsinfo,
int nfs,
virDomainDef *vmdef,
virTypedParameterPtr *params,
int *nparams, int *maxparams)
{
size_t i, j;
/* FIXME: get disk target */
if (virTypedParamsAddUInt(params, nparams, maxparams,
"fs.count", nfs) < 0)
return;
for (i = 0; i < nfs; i++) {
char param_name[VIR_TYPED_PARAM_FIELD_LENGTH];
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"fs.%zu.name", i);
if (virTypedParamsAddString(params, nparams, maxparams,
param_name, fsinfo[i]->name) < 0)
return;
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"fs.%zu.mountpoint", i);
if (virTypedParamsAddString(params, nparams, maxparams,
param_name, fsinfo[i]->mountpoint) < 0)
return;
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"fs.%zu.fstype", i);
if (virTypedParamsAddString(params, nparams, maxparams,
param_name, fsinfo[i]->fstype) < 0)
return;
/* disk usage values are not returned by older guest agents, so
* only add the params if the value is set */
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"fs.%zu.total-bytes", i);
if (fsinfo[i]->total_bytes != -1 &&
virTypedParamsAddULLong(params, nparams, maxparams,
param_name, fsinfo[i]->total_bytes) < 0)
return;
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"fs.%zu.used-bytes", i);
if (fsinfo[i]->used_bytes != -1 &&
virTypedParamsAddULLong(params, nparams, maxparams,
param_name, fsinfo[i]->used_bytes) < 0)
return;
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"fs.%zu.disk.count", i);
if (virTypedParamsAddUInt(params, nparams, maxparams,
param_name, fsinfo[i]->ndisks) < 0)
return;
for (j = 0; j < fsinfo[i]->ndisks; j++) {
virDomainDiskDef *diskdef = NULL;
qemuAgentDiskAddress *d = fsinfo[i]->disks[j];
/* match the disk to the target in the vm definition */
diskdef = virDomainDiskByAddress(vmdef,
&d->pci_controller,
d->ccw_addr,
d->bus,
d->target,
d->unit);
if (diskdef) {
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"fs.%zu.disk.%zu.alias", i, j);
if (diskdef->dst &&
virTypedParamsAddString(params, nparams, maxparams,
param_name, diskdef->dst) < 0)
return;
}
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"fs.%zu.disk.%zu.serial", i, j);
if (d->serial &&
virTypedParamsAddString(params, nparams, maxparams,
param_name, d->serial) < 0)
return;
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"fs.%zu.disk.%zu.device", i, j);
if (d->devnode &&
virTypedParamsAddString(params, nparams, maxparams,
param_name, d->devnode) < 0)
return;
}
}
}
static void
virDomainInterfaceFormatParams(virDomainInterfacePtr *ifaces,
int nifaces,
virTypedParameterPtr *params,
int *nparams, int *maxparams)
{
size_t i;
size_t j;
if (virTypedParamsAddUInt(params, nparams, maxparams,
"if.count", nifaces) < 0)
return;
for (i = 0; i < nifaces; i++) {
char param_name[VIR_TYPED_PARAM_FIELD_LENGTH];
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"if.%zu.name", i);
if (virTypedParamsAddString(params, nparams, maxparams,
param_name, ifaces[i]->name) < 0)
return;
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"if.%zu.hwaddr", i);
if (virTypedParamsAddString(params, nparams, maxparams,
param_name, ifaces[i]->hwaddr) < 0)
return;
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"if.%zu.addr.count", i);
if (virTypedParamsAddUInt(params, nparams, maxparams,
param_name, ifaces[i]->naddrs) < 0)
return;
for (j = 0; j < ifaces[i]->naddrs; j++) {
const char *type = NULL;
switch (ifaces[i]->addrs[j].type) {
case VIR_IP_ADDR_TYPE_IPV4:
type = "ipv4";
break;
case VIR_IP_ADDR_TYPE_IPV6:
type = "ipv6";
break;
}
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"if.%zu.addr.%zu.type", i, j);
if (virTypedParamsAddString(params, nparams, maxparams,
param_name, type) < 0)
return;
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"if.%zu.addr.%zu.addr", i, j);
if (virTypedParamsAddString(params, nparams, maxparams,
param_name, ifaces[i]->addrs[j].addr) < 0)
return;
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"if.%zu.addr.%zu.prefix", i, j);
if (virTypedParamsAddUInt(params, nparams, maxparams,
param_name, ifaces[i]->addrs[j].prefix) < 0)
return;
}
}
}
static int
qemuDomainGetGuestInfo(virDomainPtr dom,
unsigned int types,
virTypedParameterPtr *params,
int *nparams,
unsigned int flags)
{
virDomainObj *vm = NULL;
qemuAgent *agent;
int ret = -1;
int maxparams = 0;
g_autofree char *hostname = NULL;
unsigned int supportedTypes;
bool report_unsupported = types != 0;
int rc;
size_t nfs = 0;
qemuAgentFSInfo **agentfsinfo = NULL;
size_t ndisks = 0;
qemuAgentDiskInfo **agentdiskinfo = NULL;
virDomainInterfacePtr *ifaces = NULL;
size_t nifaces = 0;
size_t i;
virCheckFlags(0, -1);
if (qemuDomainGetGuestInfoCheckSupport(types, &supportedTypes) < 0)
return -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainGetGuestInfoEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_QUERY) < 0)
goto cleanup;
if (!qemuDomainAgentAvailable(vm, true))
goto endagentjob;
agent = qemuDomainObjEnterAgent(vm);
/* The agent info commands will return -2 for any commands that are not
* supported by the agent, or -1 for all other errors. In the case where no
* categories were explicitly requested (i.e. 'types' is 0), ignore
* 'unsupported' errors and gather as much information as we can. In all
* other cases, abort on error. */
if (supportedTypes & VIR_DOMAIN_GUEST_INFO_USERS &&
qemuAgentGetUsers(agent, params, nparams, &maxparams, report_unsupported) == -1)
goto exitagent;
if (supportedTypes & VIR_DOMAIN_GUEST_INFO_OS &&
qemuAgentGetOSInfo(agent, params, nparams, &maxparams, report_unsupported) == -1)
goto exitagent;
if (supportedTypes & VIR_DOMAIN_GUEST_INFO_TIMEZONE &&
qemuAgentGetTimezone(agent, params, nparams, &maxparams, report_unsupported) == -1)
goto exitagent;
if (supportedTypes & VIR_DOMAIN_GUEST_INFO_HOSTNAME &&
qemuAgentGetHostname(agent, &hostname, report_unsupported) == -1)
goto exitagent;
if (hostname &&
virTypedParamsAddString(params, nparams, &maxparams, "hostname", hostname) < 0)
goto exitagent;
if (supportedTypes & VIR_DOMAIN_GUEST_INFO_FILESYSTEM) {
rc = qemuAgentGetFSInfo(agent, &agentfsinfo, report_unsupported);
if (rc == -1)
goto exitagent;
if (rc >= 0)
nfs = rc;
}
if (supportedTypes & VIR_DOMAIN_GUEST_INFO_DISKS) {
rc = qemuAgentGetDisks(agent, &agentdiskinfo, report_unsupported);
if (rc == -1)
goto exitagent;
if (rc >= 0)
ndisks = rc;
}
if (supportedTypes & VIR_DOMAIN_GUEST_INFO_INTERFACES) {
rc = qemuAgentGetInterfaces(agent, &ifaces, report_unsupported);
if (rc == -1)
goto exitagent;
if (rc >= 0)
nifaces = rc;
}
qemuDomainObjExitAgent(vm, agent);
qemuDomainObjEndAgentJob(vm);
if (nfs > 0 || ndisks > 0) {
if (qemuDomainObjBeginJob(vm, VIR_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
/* we need to convert the agent fsinfo struct to parameters and match
* it to the vm disk target */
if (nfs > 0)
qemuAgentFSInfoFormatParams(agentfsinfo, nfs, vm->def, params, nparams, &maxparams);
if (ndisks > 0)
qemuAgentDiskInfoFormatParams(agentdiskinfo, ndisks, vm->def, params, nparams, &maxparams);
endjob:
qemuDomainObjEndJob(vm);
}
if (nifaces > 0) {
virDomainInterfaceFormatParams(ifaces, nifaces, params, nparams, &maxparams);
}
ret = 0;
cleanup:
for (i = 0; i < nfs; i++)
qemuAgentFSInfoFree(agentfsinfo[i]);
g_free(agentfsinfo);
for (i = 0; i < ndisks; i++)
qemuAgentDiskInfoFree(agentdiskinfo[i]);
g_free(agentdiskinfo);
if (ifaces && nifaces > 0) {
for (i = 0; i < nifaces; i++)
virDomainInterfaceFree(ifaces[i]);
}
g_free(ifaces);
virDomainObjEndAPI(&vm);
return ret;
exitagent:
qemuDomainObjExitAgent(vm, agent);
endagentjob:
qemuDomainObjEndAgentJob(vm);
goto cleanup;
}
static int
qemuDomainAgentSetResponseTimeout(virDomainPtr dom,
int timeout,
unsigned int flags)
{
virDomainObj *vm = NULL;
int ret = -1;
virCheckFlags(0, -1);
if (timeout < VIR_DOMAIN_QEMU_AGENT_COMMAND_MIN) {
virReportError(VIR_ERR_INVALID_ARG,
_("guest agent timeout '%d' is "
"less than the minimum '%d'"),
timeout, VIR_DOMAIN_QEMU_AGENT_COMMAND_MIN);
return -1;
}
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainAgentSetResponseTimeoutEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
/* If domain has an agent, change its timeout. Otherwise just save the
* request so that we can set the timeout when the agent appears */
if (qemuDomainAgentAvailable(vm, false)) {
/* We don't need to acquire a job since we're not interacting with the
* agent or the qemu monitor. We're only setting a struct member, so
* just acquire the mutex lock. Worst case, any in-process agent
* commands will use the newly-set agent timeout. */
virObjectLock(QEMU_DOMAIN_PRIVATE(vm)->agent);
qemuAgentSetResponseTimeout(QEMU_DOMAIN_PRIVATE(vm)->agent, timeout);
virObjectUnlock(QEMU_DOMAIN_PRIVATE(vm)->agent);
}
QEMU_DOMAIN_PRIVATE(vm)->agentTimeout = timeout;
qemuDomainSaveStatus(vm);
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainAuthorizedSSHKeysGet(virDomainPtr dom,
const char *user,
char ***keys,
unsigned int flags)
{
virDomainObj *vm = NULL;
qemuAgent *agent;
int rv = -1;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainAuthorizedSshKeysGetEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_QUERY) < 0)
goto cleanup;
if (!qemuDomainAgentAvailable(vm, true))
goto endagentjob;
agent = qemuDomainObjEnterAgent(vm);
rv = qemuAgentSSHGetAuthorizedKeys(agent, user, keys);
qemuDomainObjExitAgent(vm, agent);
endagentjob:
qemuDomainObjEndAgentJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return rv;
}
static int
qemuDomainAuthorizedSSHKeysSet(virDomainPtr dom,
const char *user,
const char **keys,
unsigned int nkeys,
unsigned int flags)
{
virDomainObj *vm = NULL;
qemuAgent *agent;
const bool append = flags & VIR_DOMAIN_AUTHORIZED_SSH_KEYS_SET_APPEND;
const bool remove = flags & VIR_DOMAIN_AUTHORIZED_SSH_KEYS_SET_REMOVE;
int rv = -1;
virCheckFlags(VIR_DOMAIN_AUTHORIZED_SSH_KEYS_SET_APPEND |
VIR_DOMAIN_AUTHORIZED_SSH_KEYS_SET_REMOVE, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainAuthorizedSshKeysSetEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginAgentJob(vm, VIR_AGENT_JOB_QUERY) < 0)
goto cleanup;
if (!qemuDomainAgentAvailable(vm, true))
goto endagentjob;
agent = qemuDomainObjEnterAgent(vm);
if (remove)
rv = qemuAgentSSHRemoveAuthorizedKeys(agent, user, keys, nkeys);
else
rv = qemuAgentSSHAddAuthorizedKeys(agent, user, keys, nkeys, !append);
qemuDomainObjExitAgent(vm, agent);
endagentjob:
qemuDomainObjEndAgentJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return rv;
}
static int
qemuDomainGetMessages(virDomainPtr dom,
char ***msgs,
unsigned int flags)
{
virDomainObj *vm = NULL;
int rv = -1;
virCheckFlags(VIR_DOMAIN_MESSAGE_DEPRECATION |
VIR_DOMAIN_MESSAGE_TAINTING, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainGetMessagesEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
rv = virDomainObjGetMessages(vm, msgs, flags);
cleanup:
virDomainObjEndAPI(&vm);
return rv;
}
#define MIN_DIRTYRATE_CALC_PERIOD 1 /* supported min dirtyrate calculating time: 1s */
#define MAX_DIRTYRATE_CALC_PERIOD 60 /* supported max dirtyrate calculating time: 60s */
static int
qemuDomainStartDirtyRateCalc(virDomainPtr dom,
int seconds,
unsigned int flags)
{
virDomainObj *vm = NULL;
qemuDomainObjPrivate *priv;
qemuMonitorDirtyRateCalcMode mode = QEMU_MONITOR_DIRTYRATE_CALC_MODE_PAGE_SAMPLING;
int ret = -1;
virCheckFlags(VIR_DOMAIN_DIRTYRATE_MODE_PAGE_SAMPLING |
VIR_DOMAIN_DIRTYRATE_MODE_DIRTY_BITMAP |
VIR_DOMAIN_DIRTYRATE_MODE_DIRTY_RING, -1);
if (seconds < MIN_DIRTYRATE_CALC_PERIOD ||
seconds > MAX_DIRTYRATE_CALC_PERIOD) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("seconds=%d is invalid, please choose value within [%d, %d]."),
seconds,
MIN_DIRTYRATE_CALC_PERIOD,
MAX_DIRTYRATE_CALC_PERIOD);
return -1;
}
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainStartDirtyRateCalcEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
priv = vm->privateData;
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_CALC_DIRTY_RATE)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("QEMU does not support calculating dirty page rate"));
goto cleanup;
}
if (flags & VIR_DOMAIN_DIRTYRATE_MODE_DIRTY_BITMAP) {
mode = QEMU_MONITOR_DIRTYRATE_CALC_MODE_DIRTY_BITMAP;
} else if (flags & VIR_DOMAIN_DIRTYRATE_MODE_DIRTY_RING) {
if (vm->def->features[VIR_DOMAIN_FEATURE_KVM] != VIR_TRISTATE_SWITCH_ON ||
vm->def->kvm_features->features[VIR_DOMAIN_KVM_DIRTY_RING] != VIR_TRISTATE_SWITCH_ON) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("dirty-ring calculation mode requires dirty-ring feature enabled."));
goto cleanup;
}
mode = QEMU_MONITOR_DIRTYRATE_CALC_MODE_DIRTY_RING;
}
if (mode != QEMU_MONITOR_DIRTYRATE_CALC_MODE_PAGE_SAMPLING &&
!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DIRTYRATE_MODE)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("QEMU does not support dirty page rate calculation mode."));
goto cleanup;
}
if (qemuDomainObjBeginJob(vm, VIR_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0) {
goto endjob;
}
VIR_DEBUG("Calculate dirty rate in next %d seconds", seconds);
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorStartDirtyRateCalc(priv->mon, seconds, mode);
qemuDomainObjExitMonitor(vm);
endjob:
qemuDomainObjEndJob(vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static virHypervisorDriver qemuHypervisorDriver = {
.name = QEMU_DRIVER_NAME,
.connectURIProbe = qemuConnectURIProbe,
.connectOpen = qemuConnectOpen, /* 0.2.0 */
.connectClose = qemuConnectClose, /* 0.2.0 */
.connectSupportsFeature = qemuConnectSupportsFeature, /* 0.5.0 */
.connectGetType = qemuConnectGetType, /* 0.2.0 */
.connectGetVersion = qemuConnectGetVersion, /* 0.2.0 */
.connectGetHostname = qemuConnectGetHostname, /* 0.3.3 */
.connectGetSysinfo = qemuConnectGetSysinfo, /* 0.8.8 */
.connectGetMaxVcpus = qemuConnectGetMaxVcpus, /* 0.2.1 */
.nodeGetInfo = qemuNodeGetInfo, /* 0.2.0 */
.connectGetCapabilities = qemuConnectGetCapabilities, /* 0.2.1 */
.connectListDomains = qemuConnectListDomains, /* 0.2.0 */
.connectNumOfDomains = qemuConnectNumOfDomains, /* 0.2.0 */
.connectListAllDomains = qemuConnectListAllDomains, /* 0.9.13 */
.domainCreateXML = qemuDomainCreateXML, /* 0.2.0 */
.domainLookupByID = qemuDomainLookupByID, /* 0.2.0 */
.domainLookupByUUID = qemuDomainLookupByUUID, /* 0.2.0 */
.domainLookupByName = qemuDomainLookupByName, /* 0.2.0 */
.domainSuspend = qemuDomainSuspend, /* 0.2.0 */
.domainResume = qemuDomainResume, /* 0.2.0 */
.domainShutdown = qemuDomainShutdown, /* 0.2.0 */
.domainShutdownFlags = qemuDomainShutdownFlags, /* 0.9.10 */
.domainReboot = qemuDomainReboot, /* 0.9.3 */
.domainReset = qemuDomainReset, /* 0.9.7 */
.domainDestroy = qemuDomainDestroy, /* 0.2.0 */
.domainDestroyFlags = qemuDomainDestroyFlags, /* 0.9.4 */
.domainGetOSType = qemuDomainGetOSType, /* 0.2.2 */
.domainGetMaxMemory = qemuDomainGetMaxMemory, /* 0.4.2 */
.domainSetMaxMemory = qemuDomainSetMaxMemory, /* 0.4.2 */
.domainSetMemory = qemuDomainSetMemory, /* 0.4.2 */
.domainSetMemoryFlags = qemuDomainSetMemoryFlags, /* 0.9.0 */
.domainSetMemoryParameters = qemuDomainSetMemoryParameters, /* 0.8.5 */
.domainGetMemoryParameters = qemuDomainGetMemoryParameters, /* 0.8.5 */
.domainSetMemoryStatsPeriod = qemuDomainSetMemoryStatsPeriod, /* 1.1.1 */
.domainSetBlkioParameters = qemuDomainSetBlkioParameters, /* 0.9.0 */
.domainGetBlkioParameters = qemuDomainGetBlkioParameters, /* 0.9.0 */
.domainGetInfo = qemuDomainGetInfo, /* 0.2.0 */
.domainGetState = qemuDomainGetState, /* 0.9.2 */
.domainGetControlInfo = qemuDomainGetControlInfo, /* 0.9.3 */
.domainSave = qemuDomainSave, /* 0.2.0 */
.domainSaveFlags = qemuDomainSaveFlags, /* 0.9.4 */
.domainSaveParams = qemuDomainSaveParams, /* 8.4.0 */
.domainRestore = qemuDomainRestore, /* 0.2.0 */
.domainRestoreFlags = qemuDomainRestoreFlags, /* 0.9.4 */
.domainRestoreParams = qemuDomainRestoreParams, /* 8.4.0 */
.domainSaveImageGetXMLDesc = qemuDomainSaveImageGetXMLDesc, /* 0.9.4 */
.domainSaveImageDefineXML = qemuDomainSaveImageDefineXML, /* 0.9.4 */
.domainCoreDump = qemuDomainCoreDump, /* 0.7.0 */
.domainCoreDumpWithFormat = qemuDomainCoreDumpWithFormat, /* 1.2.3 */
.domainScreenshot = qemuDomainScreenshot, /* 0.9.2 */
.domainSetVcpus = qemuDomainSetVcpus, /* 0.4.4 */
.domainSetVcpusFlags = qemuDomainSetVcpusFlags, /* 0.8.5 */
.domainGetVcpusFlags = qemuDomainGetVcpusFlags, /* 0.8.5 */
.domainPinVcpu = qemuDomainPinVcpu, /* 0.4.4 */
.domainPinVcpuFlags = qemuDomainPinVcpuFlags, /* 0.9.3 */
.domainGetVcpuPinInfo = qemuDomainGetVcpuPinInfo, /* 0.9.3 */
.domainPinEmulator = qemuDomainPinEmulator, /* 0.10.0 */
.domainGetEmulatorPinInfo = qemuDomainGetEmulatorPinInfo, /* 0.10.0 */
.domainGetVcpus = qemuDomainGetVcpus, /* 0.4.4 */
.domainGetMaxVcpus = qemuDomainGetMaxVcpus, /* 0.4.4 */
.domainGetIOThreadInfo = qemuDomainGetIOThreadInfo, /* 1.2.14 */
.domainPinIOThread = qemuDomainPinIOThread, /* 1.2.14 */
.domainAddIOThread = qemuDomainAddIOThread, /* 1.2.15 */
.domainDelIOThread = qemuDomainDelIOThread, /* 1.2.15 */
.domainSetIOThreadParams = qemuDomainSetIOThreadParams, /* 4.10.0 */
.domainGetSecurityLabel = qemuDomainGetSecurityLabel, /* 0.6.1 */
.domainGetSecurityLabelList = qemuDomainGetSecurityLabelList, /* 0.10.0 */
.nodeGetSecurityModel = qemuNodeGetSecurityModel, /* 0.6.1 */
.domainGetXMLDesc = qemuDomainGetXMLDesc, /* 0.2.0 */
.connectDomainXMLFromNative = NULL, /* 0.6.4 - 5.5.0 */
.connectDomainXMLToNative = qemuConnectDomainXMLToNative, /* 0.6.4 */
.connectListDefinedDomains = qemuConnectListDefinedDomains, /* 0.2.0 */
.connectNumOfDefinedDomains = qemuConnectNumOfDefinedDomains, /* 0.2.0 */
.domainCreate = qemuDomainCreate, /* 0.2.0 */
.domainCreateWithFlags = qemuDomainCreateWithFlags, /* 0.8.2 */
.domainDefineXML = qemuDomainDefineXML, /* 0.2.0 */
.domainDefineXMLFlags = qemuDomainDefineXMLFlags, /* 1.2.12 */
.domainUndefine = qemuDomainUndefine, /* 0.2.0 */
.domainUndefineFlags = qemuDomainUndefineFlags, /* 0.9.4 */
.domainAttachDevice = qemuDomainAttachDevice, /* 0.4.1 */
.domainAttachDeviceFlags = qemuDomainAttachDeviceFlags, /* 0.7.7 */
.domainDetachDevice = qemuDomainDetachDevice, /* 0.5.0 */
.domainDetachDeviceFlags = qemuDomainDetachDeviceFlags, /* 0.7.7 */
.domainUpdateDeviceFlags = qemuDomainUpdateDeviceFlags, /* 0.8.0 */
.domainDetachDeviceAlias = qemuDomainDetachDeviceAlias, /* 4.4.0 */
.domainGetAutostart = qemuDomainGetAutostart, /* 0.2.1 */
.domainSetAutostart = qemuDomainSetAutostart, /* 0.2.1 */
.domainGetSchedulerType = qemuDomainGetSchedulerType, /* 0.7.0 */
.domainGetSchedulerParameters = qemuDomainGetSchedulerParameters, /* 0.7.0 */
.domainGetSchedulerParametersFlags = qemuDomainGetSchedulerParametersFlags, /* 0.9.2 */
.domainSetSchedulerParameters = qemuDomainSetSchedulerParameters, /* 0.7.0 */
.domainSetSchedulerParametersFlags = qemuDomainSetSchedulerParametersFlags, /* 0.9.2 */
.domainMigratePerform = qemuDomainMigratePerform, /* 0.5.0 */
.domainBlockResize = qemuDomainBlockResize, /* 0.9.8 */
.domainBlockStats = qemuDomainBlockStats, /* 0.4.1 */
.domainBlockStatsFlags = qemuDomainBlockStatsFlags, /* 0.9.5 */
.domainInterfaceStats = qemuDomainInterfaceStats, /* 0.4.1 */
.domainMemoryStats = qemuDomainMemoryStats, /* 0.7.5 */
.domainBlockPeek = qemuDomainBlockPeek, /* 0.4.4 */
.domainMemoryPeek = qemuDomainMemoryPeek, /* 0.4.4 */
.domainGetBlockInfo = qemuDomainGetBlockInfo, /* 0.8.1 */
.nodeGetCPUStats = qemuNodeGetCPUStats, /* 0.9.3 */
.nodeGetMemoryStats = qemuNodeGetMemoryStats, /* 0.9.3 */
.nodeGetCellsFreeMemory = qemuNodeGetCellsFreeMemory, /* 0.4.4 */
.nodeGetFreeMemory = qemuNodeGetFreeMemory, /* 0.4.4 */
.connectDomainEventRegister = qemuConnectDomainEventRegister, /* 0.5.0 */
.connectDomainEventDeregister = qemuConnectDomainEventDeregister, /* 0.5.0 */
.domainMigratePrepare2 = qemuDomainMigratePrepare2, /* 0.5.0 */
.domainMigrateFinish2 = qemuDomainMigrateFinish2, /* 0.5.0 */
.nodeDeviceDettach = qemuNodeDeviceDettach, /* 0.6.1 */
.nodeDeviceDetachFlags = qemuNodeDeviceDetachFlags, /* 1.0.5 */
.nodeDeviceReAttach = qemuNodeDeviceReAttach, /* 0.6.1 */
.nodeDeviceReset = qemuNodeDeviceReset, /* 0.6.1 */
.domainMigratePrepareTunnel = qemuDomainMigratePrepareTunnel, /* 0.7.2 */
.connectIsEncrypted = qemuConnectIsEncrypted, /* 0.7.3 */
.connectIsSecure = qemuConnectIsSecure, /* 0.7.3 */
.domainIsActive = qemuDomainIsActive, /* 0.7.3 */
.domainIsPersistent = qemuDomainIsPersistent, /* 0.7.3 */
.domainIsUpdated = qemuDomainIsUpdated, /* 0.8.6 */
.connectCompareCPU = qemuConnectCompareCPU, /* 0.7.5 */
.connectBaselineCPU = qemuConnectBaselineCPU, /* 0.7.7 */
.domainGetJobInfo = qemuDomainGetJobInfo, /* 0.7.7 */
.domainGetJobStats = qemuDomainGetJobStats, /* 1.0.3 */
.domainAbortJob = qemuDomainAbortJob, /* 0.7.7 */
.domainAbortJobFlags = qemuDomainAbortJobFlags, /* 8.5.0 */
.domainMigrateGetMaxDowntime = qemuDomainMigrateGetMaxDowntime, /* 3.7.0 */
.domainMigrateSetMaxDowntime = qemuDomainMigrateSetMaxDowntime, /* 0.8.0 */
.domainMigrateGetCompressionCache = qemuDomainMigrateGetCompressionCache, /* 1.0.3 */
.domainMigrateSetCompressionCache = qemuDomainMigrateSetCompressionCache, /* 1.0.3 */
.domainMigrateSetMaxSpeed = qemuDomainMigrateSetMaxSpeed, /* 0.9.0 */
.domainMigrateGetMaxSpeed = qemuDomainMigrateGetMaxSpeed, /* 0.9.5 */
.connectDomainEventRegisterAny = qemuConnectDomainEventRegisterAny, /* 0.8.0 */
.connectDomainEventDeregisterAny = qemuConnectDomainEventDeregisterAny, /* 0.8.0 */
.domainManagedSave = qemuDomainManagedSave, /* 0.8.0 */
.domainHasManagedSaveImage = qemuDomainHasManagedSaveImage, /* 0.8.0 */
.domainManagedSaveRemove = qemuDomainManagedSaveRemove, /* 0.8.0 */
.domainManagedSaveGetXMLDesc = qemuDomainManagedSaveGetXMLDesc, /* 3.7.0 */
.domainManagedSaveDefineXML = qemuDomainManagedSaveDefineXML, /* 3.7.0 */
.domainSnapshotCreateXML = qemuDomainSnapshotCreateXML, /* 0.8.0 */
.domainSnapshotGetXMLDesc = qemuDomainSnapshotGetXMLDesc, /* 0.8.0 */
.domainSnapshotNum = qemuDomainSnapshotNum, /* 0.8.0 */
.domainSnapshotListNames = qemuDomainSnapshotListNames, /* 0.8.0 */
.domainListAllSnapshots = qemuDomainListAllSnapshots, /* 0.9.13 */
.domainSnapshotNumChildren = qemuDomainSnapshotNumChildren, /* 0.9.7 */
.domainSnapshotListChildrenNames = qemuDomainSnapshotListChildrenNames, /* 0.9.7 */
.domainSnapshotListAllChildren = qemuDomainSnapshotListAllChildren, /* 0.9.13 */
.domainSnapshotLookupByName = qemuDomainSnapshotLookupByName, /* 0.8.0 */
.domainHasCurrentSnapshot = qemuDomainHasCurrentSnapshot, /* 0.8.0 */
.domainSnapshotGetParent = qemuDomainSnapshotGetParent, /* 0.9.7 */
.domainSnapshotCurrent = qemuDomainSnapshotCurrent, /* 0.8.0 */
.domainSnapshotIsCurrent = qemuDomainSnapshotIsCurrent, /* 0.9.13 */
.domainSnapshotHasMetadata = qemuDomainSnapshotHasMetadata, /* 0.9.13 */
.domainRevertToSnapshot = qemuDomainRevertToSnapshot, /* 0.8.0 */
.domainSnapshotDelete = qemuDomainSnapshotDelete, /* 0.8.0 */
.domainQemuMonitorCommand = qemuDomainQemuMonitorCommand, /* 0.8.3 */
.domainQemuMonitorCommandWithFiles = qemuDomainQemuMonitorCommandWithFiles, /* 8.2.0 */
.domainQemuAttach = NULL, /* 0.9.4 - 5.5.0 */
.domainQemuAgentCommand = qemuDomainQemuAgentCommand, /* 0.10.0 */
.connectDomainQemuMonitorEventRegister = qemuConnectDomainQemuMonitorEventRegister, /* 1.2.3 */
.connectDomainQemuMonitorEventDeregister = qemuConnectDomainQemuMonitorEventDeregister, /* 1.2.3 */
.domainOpenConsole = qemuDomainOpenConsole, /* 0.8.6 */
.domainOpenGraphics = qemuDomainOpenGraphics, /* 0.9.7 */
.domainOpenGraphicsFD = qemuDomainOpenGraphicsFD, /* 1.2.8 */
.domainInjectNMI = qemuDomainInjectNMI, /* 0.9.2 */
.domainMigrateBegin3 = qemuDomainMigrateBegin3, /* 0.9.2 */
.domainMigratePrepare3 = qemuDomainMigratePrepare3, /* 0.9.2 */
.domainMigratePrepareTunnel3 = qemuDomainMigratePrepareTunnel3, /* 0.9.2 */
.domainMigratePerform3 = qemuDomainMigratePerform3, /* 0.9.2 */
.domainMigrateFinish3 = qemuDomainMigrateFinish3, /* 0.9.2 */
.domainMigrateConfirm3 = qemuDomainMigrateConfirm3, /* 0.9.2 */
.domainSendKey = qemuDomainSendKey, /* 0.9.4 */
.domainGetPerfEvents = qemuDomainGetPerfEvents, /* 1.3.3 */
.domainSetPerfEvents = qemuDomainSetPerfEvents, /* 1.3.3 */
.domainBlockJobAbort = qemuDomainBlockJobAbort, /* 0.9.4 */
.domainGetBlockJobInfo = qemuDomainGetBlockJobInfo, /* 0.9.4 */
.domainBlockJobSetSpeed = qemuDomainBlockJobSetSpeed, /* 0.9.4 */
.domainBlockPull = qemuDomainBlockPull, /* 0.9.4 */
.domainBlockRebase = qemuDomainBlockRebase, /* 0.9.10 */
.domainBlockCopy = qemuDomainBlockCopy, /* 1.2.9 */
.domainBlockCommit = qemuDomainBlockCommit, /* 1.0.0 */
.connectIsAlive = qemuConnectIsAlive, /* 0.9.8 */
.nodeSuspendForDuration = qemuNodeSuspendForDuration, /* 0.9.8 */
.domainSetBlockIoTune = qemuDomainSetBlockIoTune, /* 0.9.8 */
.domainGetBlockIoTune = qemuDomainGetBlockIoTune, /* 0.9.8 */
.domainSetNumaParameters = qemuDomainSetNumaParameters, /* 0.9.9 */
.domainGetNumaParameters = qemuDomainGetNumaParameters, /* 0.9.9 */
.domainGetInterfaceParameters = qemuDomainGetInterfaceParameters, /* 0.9.9 */
.domainSetInterfaceParameters = qemuDomainSetInterfaceParameters, /* 0.9.9 */
.domainGetDiskErrors = qemuDomainGetDiskErrors, /* 0.9.10 */
.domainSetMetadata = qemuDomainSetMetadata, /* 0.9.10 */
.domainGetMetadata = qemuDomainGetMetadata, /* 0.9.10 */
.domainPMSuspendForDuration = qemuDomainPMSuspendForDuration, /* 0.9.11 */
.domainPMWakeup = qemuDomainPMWakeup, /* 0.9.11 */
.domainGetCPUStats = qemuDomainGetCPUStats, /* 0.9.11 */
.nodeGetMemoryParameters = qemuNodeGetMemoryParameters, /* 0.10.2 */
.nodeSetMemoryParameters = qemuNodeSetMemoryParameters, /* 0.10.2 */
.nodeGetCPUMap = qemuNodeGetCPUMap, /* 1.0.0 */
.domainFSTrim = qemuDomainFSTrim, /* 1.0.1 */
.domainOpenChannel = qemuDomainOpenChannel, /* 1.0.2 */
.domainMigrateBegin3Params = qemuDomainMigrateBegin3Params, /* 1.1.0 */
.domainMigratePrepare3Params = qemuDomainMigratePrepare3Params, /* 1.1.0 */
.domainMigratePrepareTunnel3Params = qemuDomainMigratePrepareTunnel3Params, /* 1.1.0 */
.domainMigratePerform3Params = qemuDomainMigratePerform3Params, /* 1.1.0 */
.domainMigrateFinish3Params = qemuDomainMigrateFinish3Params, /* 1.1.0 */
.domainMigrateConfirm3Params = qemuDomainMigrateConfirm3Params, /* 1.1.0 */
.connectGetCPUModelNames = qemuConnectGetCPUModelNames, /* 1.1.3 */
.domainFSFreeze = qemuDomainFSFreeze, /* 1.2.5 */
.domainFSThaw = qemuDomainFSThaw, /* 1.2.5 */
.domainGetHostname = qemuDomainGetHostname, /* 4.8.0 */
.domainGetTime = qemuDomainGetTime, /* 1.2.5 */
.domainSetTime = qemuDomainSetTime, /* 1.2.5 */
.nodeGetFreePages = qemuNodeGetFreePages, /* 1.2.6 */
.connectGetDomainCapabilities = qemuConnectGetDomainCapabilities, /* 1.2.7 */
.connectGetAllDomainStats = qemuConnectGetAllDomainStats, /* 1.2.8 */
.nodeAllocPages = qemuNodeAllocPages, /* 1.2.9 */
.domainGetFSInfo = qemuDomainGetFSInfo, /* 1.2.11 */
.domainInterfaceAddresses = qemuDomainInterfaceAddresses, /* 1.2.14 */
.domainSetUserPassword = qemuDomainSetUserPassword, /* 1.2.16 */
.domainRename = qemuDomainRename, /* 1.2.19 */
.domainMigrateStartPostCopy = qemuDomainMigrateStartPostCopy, /* 1.3.3 */
.domainGetGuestVcpus = qemuDomainGetGuestVcpus, /* 2.0.0 */
.domainSetGuestVcpus = qemuDomainSetGuestVcpus, /* 2.0.0 */
.domainSetVcpu = qemuDomainSetVcpu, /* 3.1.0 */
.domainSetBlockThreshold = qemuDomainSetBlockThreshold, /* 3.2.0 */
.domainSetLifecycleAction = qemuDomainSetLifecycleAction, /* 3.9.0 */
.connectCompareHypervisorCPU = qemuConnectCompareHypervisorCPU, /* 4.4.0 */
.connectBaselineHypervisorCPU = qemuConnectBaselineHypervisorCPU, /* 4.4.0 */
.nodeGetSEVInfo = qemuNodeGetSEVInfo, /* 4.5.0 */
.domainGetLaunchSecurityInfo = qemuDomainGetLaunchSecurityInfo, /* 4.5.0 */
.domainCheckpointCreateXML = qemuDomainCheckpointCreateXML, /* 5.6.0 */
.domainCheckpointGetXMLDesc = qemuDomainCheckpointGetXMLDesc, /* 5.6.0 */
.domainListAllCheckpoints = qemuDomainListAllCheckpoints, /* 5.6.0 */
.domainCheckpointListAllChildren = qemuDomainCheckpointListAllChildren, /* 5.6.0 */
.domainCheckpointLookupByName = qemuDomainCheckpointLookupByName, /* 5.6.0 */
.domainCheckpointGetParent = qemuDomainCheckpointGetParent, /* 5.6.0 */
.domainCheckpointDelete = qemuDomainCheckpointDelete, /* 5.6.0 */
.domainGetGuestInfo = qemuDomainGetGuestInfo, /* 5.7.0 */
.domainAgentSetResponseTimeout = qemuDomainAgentSetResponseTimeout, /* 5.10.0 */
.domainBackupBegin = qemuDomainBackupBegin, /* 6.0.0 */
.domainBackupGetXMLDesc = qemuDomainBackupGetXMLDesc, /* 6.0.0 */
.domainAuthorizedSSHKeysGet = qemuDomainAuthorizedSSHKeysGet, /* 6.10.0 */
.domainAuthorizedSSHKeysSet = qemuDomainAuthorizedSSHKeysSet, /* 6.10.0 */
.domainGetMessages = qemuDomainGetMessages, /* 7.1.0 */
.domainStartDirtyRateCalc = qemuDomainStartDirtyRateCalc, /* 7.2.0 */
.domainSetLaunchSecurityState = qemuDomainSetLaunchSecurityState, /* 8.0.0 */
};
static virConnectDriver qemuConnectDriver = {
.localOnly = true,
.uriSchemes = (const char *[]){ "qemu", NULL },
.embeddable = true,
.hypervisorDriver = &qemuHypervisorDriver,
};
static virStateDriver qemuStateDriver = {
.name = QEMU_DRIVER_NAME,
.stateInitialize = qemuStateInitialize,
.stateCleanup = qemuStateCleanup,
.stateReload = qemuStateReload,
.stateStop = qemuStateStop,
.stateShutdownPrepare = qemuStateShutdownPrepare,
.stateShutdownWait = qemuStateShutdownWait,
};
int qemuRegister(void)
{
if (virRegisterConnectDriver(&qemuConnectDriver,
true) < 0)
return -1;
if (virRegisterStateDriver(&qemuStateDriver) < 0)
return -1;
return 0;
}
Reference in New Issue View Git Blame Copy Permalink