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7b1ed1cd73
libvirt/src/qemu/qemu_driver.c
Daniel P. Berrangé 7b1ed1cd73 qemu: stop passing -enable-fips to QEMU >= 5.2.0 
Use of the -enable-fips option is being deprecated in QEMU >= 5.2.0. If
FIPS compliance is required, QEMU must be built with libcrypt which will
unconditionally enforce it.

Thus there is no need for libvirt to pass -enable-fips to modern QEMU.
Unfortunately there was never any way to probe for -enable-fips in the
first instance, it was enabled by libvirt based on version number
originally, and then later unconditionally enabled when libvirt dropped
support for older QEMU. Similarly we now use a version number check to
decide when to stop passing -enable-fips.

Note that the qemu-5.2 capabilities are currently from the pre-release
version and will be updated once qemu-5.2 is released.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-10-22 09:03:33 +02:00

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/*
* 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 <sys/poll.h>
#include <sys/time.h>
#include <dirent.h>
#include <stdarg.h>
#include <unistd.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <signal.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_cgroup.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 "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 "virarptable.h"
#include "viruuid.h"
#include "domain_conf.h"
#include "domain_audit.h"
#include "domain_cgroup.h"
#include "domain_driver.h"
#include "node_device_conf.h"
#include "virpci.h"
#include "virusb.h"
#include "virpidfile.h"
#include "virprocess.h"
#include "libvirt_internal.h"
#include "virxml.h"
#include "cpu/cpu.h"
#include "virsysinfo.h"
#include "domain_nwfilter.h"
#include "virhook.h"
#include "virstoragefile.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 "virqemu.h"
#include "virdomainsnapshotobjlist.h"
#include "virenum.h"
#include "virdomaincheckpointobjlist.h"
#include "virsocket.h"
#include "virutil.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_SCHED_MIN_PERIOD 1000LL
#define QEMU_SCHED_MAX_PERIOD 1000000LL
#define QEMU_SCHED_MIN_QUOTA 1000LL
#define QEMU_SCHED_MAX_QUOTA 18446744073709551LL
#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",
);
static void qemuProcessEventHandler(void *data, void *opaque);
static int qemuStateCleanup(void);
static int qemuDomainObjStart(virConnectPtr conn,
virQEMUDriverPtr driver,
virDomainObjPtr vm,
unsigned int flags,
qemuDomainAsyncJob asyncJob);
static int qemuDomainManagedSaveLoad(virDomainObjPtr vm,
void *opaque);
static virQEMUDriverPtr 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 virDomainObjPtr
qemuDomObjFromSnapshot(virDomainSnapshotPtr snapshot)
{
return qemuDomainObjFromDomain(snapshot->domain);
}
static int
qemuAutostartDomain(virDomainObjPtr vm,
void *opaque)
{
virQEMUDriverPtr 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(driver, 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,
QEMU_ASYNC_JOB_START) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to autostart VM '%s': %s"),
vm->def->name, virGetLastErrorMessage());
}
qemuProcessEndJob(driver, vm);
}
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static void
qemuAutostartDomains(virQEMUDriverPtr driver)
{
virDomainObjListForEach(driver->domains, false, qemuAutostartDomain, driver);
}
static int
qemuSecurityChownCallback(const virStorageSource *src,
uid_t uid,
gid_t gid)
{
struct stat sb;
int save_errno = 0;
int ret = -1;
int rv;
g_autoptr(virStorageSource) cpy = NULL;
if (virStorageSourceIsLocalStorage(src)) {
/* use direct chown for local files so that the file doesn't
* need to be initialized */
if (!src->path)
return 0;
if (stat(src->path, &sb) >= 0) {
if (sb.st_uid == uid &&
sb.st_gid == gid) {
/* It's alright, there's nothing to change anyway. */
return 0;
}
}
if (chown(src->path, uid, gid) < 0)
return -1;
return 0;
}
if ((rv = virStorageFileSupportsSecurityDriver(src)) <= 0)
return rv;
if (!(cpy = virStorageSourceCopy(src, false)))
return -1;
/* src file init reports errors, return -2 on failure */
if (virStorageFileInit(cpy) < 0)
return -2;
ret = virStorageFileChown(cpy, uid, gid);
save_errno = errno;
virStorageFileDeinit(cpy);
errno = save_errno;
return ret;
}
static int
qemuSecurityInit(virQEMUDriverPtr driver)
{
char **names;
virSecurityManagerPtr mgr = NULL;
virSecurityManagerPtr 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(virDomainObjPtr vm,
void *data)
{
char *baseDir = (char *)data;
g_autofree char *snapDir = NULL;
DIR *dir = NULL;
struct dirent *entry;
virDomainSnapshotDefPtr def = NULL;
virDomainMomentObjPtr snap = NULL;
virDomainMomentObjPtr current = NULL;
bool cur;
unsigned int flags = (VIR_DOMAIN_SNAPSHOT_PARSE_REDEFINE |
VIR_DOMAIN_SNAPSHOT_PARSE_DISKS |
VIR_DOMAIN_SNAPSHOT_PARSE_INTERNAL);
int ret = -1;
int direrr;
qemuDomainObjPrivatePtr priv;
virObjectLock(vm);
priv = vm->privateData;
if (!(snapDir = g_strdup_printf("%s/%s", baseDir, vm->def->name))) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to allocate memory for "
"snapshot directory for domain %s"),
vm->def->name);
goto cleanup;
}
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_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);
if (!(fullpath = g_strdup_printf("%s/%s", snapDir, entry->d_name))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Failed to allocate memory for path"));
continue;
}
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;
}
def = virDomainSnapshotDefParseString(xmlStr,
qemu_driver->xmlopt,
priv->qemuCaps, &cur,
flags);
if (def == 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, def);
if (snap == NULL) {
virObjectUnref(def);
} else if (cur) {
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:
VIR_DIR_CLOSE(dir);
virObjectUnlock(vm);
return ret;
}
static int
qemuDomainCheckpointLoad(virDomainObjPtr vm,
void *data)
{
char *baseDir = (char *)data;
g_autofree char *chkDir = NULL;
DIR *dir = NULL;
struct dirent *entry;
virDomainCheckpointDefPtr def = NULL;
virDomainMomentObjPtr chk = NULL;
virDomainMomentObjPtr current = NULL;
unsigned int flags = VIR_DOMAIN_CHECKPOINT_PARSE_REDEFINE;
int ret = -1;
int direrr;
qemuDomainObjPrivatePtr priv;
virObjectLock(vm);
priv = vm->privateData;
if (!(chkDir = g_strdup_printf("%s/%s", baseDir, vm->def->name))) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to allocate memory for "
"checkpoint directory for domain %s"),
vm->def->name);
goto cleanup;
}
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);
if (!(fullpath = g_strdup_printf("%s/%s", chkDir, entry->d_name))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Failed to allocate memory for path"));
continue;
}
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;
}
def = virDomainCheckpointDefParseString(xmlStr,
qemu_driver->xmlopt,
priv->qemuCaps,
flags);
if (!def || virDomainCheckpointAlignDisks(def) < 0) {
/* Nothing we can do here, skip this one */
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to parse checkpoint XML from file '%s'"),
fullpath);
virObjectUnref(def);
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);
/* Note that it is not practical to automatically construct
* checkpoints based solely on qcow2 bitmaps, since qemu does not
* track parent relations which we find important in our metadata.
* Perhaps we could double-check that our just-loaded checkpoint
* metadata is consistent with existing qcow2 bitmaps, but a user
* that changes things behind our backs deserves what happens. */
virResetLastError();
ret = 0;
cleanup:
VIR_DIR_CLOSE(dir);
virObjectUnlock(vm);
return ret;
}
static int
qemuDomainNetsRestart(virDomainObjPtr vm,
void *data G_GNUC_UNUSED)
{
size_t i;
virDomainDefPtr def = vm->def;
virObjectLock(vm);
for (i = 0; i < def->nnets; i++) {
virDomainNetDefPtr 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(virDomainObjPtr 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;
virQEMUDriverConfigPtr cfg;
uid_t run_uid = -1;
gid_t run_gid = -1;
bool autostart = true;
size_t i;
const char *defsecmodel = NULL;
g_autofree virSecurityManagerPtr *sec_managers = NULL;
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;
if (!(driverConf = g_strdup_printf("%s/qemu.conf", cfg->configBaseDir)))
goto error;
if (virQEMUDriverConfigLoadFile(cfg, driverConf, privileged) < 0)
goto error;
if (virQEMUDriverConfigValidate(cfg) < 0)
goto error;
if (virQEMUDriverConfigSetDefaults(cfg) < 0)
goto error;
if (virFileMakePath(cfg->stateDir) < 0) {
virReportSystemError(errno, _("Failed to create state dir %s"),
cfg->stateDir);
goto error;
}
if (virFileMakePath(cfg->libDir) < 0) {
virReportSystemError(errno, _("Failed to create lib dir %s"),
cfg->libDir);
goto error;
}
if (virFileMakePath(cfg->cacheDir) < 0) {
virReportSystemError(errno, _("Failed to create cache dir %s"),
cfg->cacheDir);
goto error;
}
if (virFileMakePath(cfg->saveDir) < 0) {
virReportSystemError(errno, _("Failed to create save dir %s"),
cfg->saveDir);
goto error;
}
if (virFileMakePath(cfg->snapshotDir) < 0) {
virReportSystemError(errno, _("Failed to create snapshot dir %s"),
cfg->snapshotDir);
goto error;
}
if (virFileMakePath(cfg->checkpointDir) < 0) {
virReportSystemError(errno, _("Failed to create checkpoint dir %s"),
cfg->checkpointDir);
goto error;
}
if (virFileMakePath(cfg->autoDumpPath) < 0) {
virReportSystemError(errno, _("Failed to create dump dir %s"),
cfg->autoDumpPath);
goto error;
}
if (virFileMakePath(cfg->channelTargetDir) < 0) {
virReportSystemError(errno, _("Failed to create channel target dir %s"),
cfg->channelTargetDir);
goto error;
}
if (virFileMakePath(cfg->nvramDir) < 0) {
virReportSystemError(errno, _("Failed to create nvram dir %s"),
cfg->nvramDir);
goto error;
}
if (virFileMakePath(cfg->memoryBackingDir) < 0) {
virReportSystemError(errno, _("Failed to create memory backing dir %s"),
cfg->memoryBackingDir);
goto error;
}
if (virFileMakePath(cfg->slirpStateDir) < 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 (!(qemu_driver->sharedDevices = virHashCreate(30, qemuSharedDeviceEntryFree)))
goto error;
if (qemuMigrationDstErrorInit(qemu_driver) < 0)
goto error;
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->cacheDir, cfg->user, cfg->group) < 0) {
virReportSystemError(errno,
_("unable to set ownership of '%s' to %d:%d"),
cfg->cacheDir, (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 (virFileMakePath(hugepagePath) < 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", 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(virDomainObjPtr vm, int newVM, void *opaque)
{
virQEMUDriverPtr driver = opaque;
if (newVM) {
virObjectEventPtr 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(virDomainObjPtr 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);
virHashFree(qemu_driver->sharedDevices);
virObjectUnref(qemu_driver->hostdevMgr);
virObjectUnref(qemu_driver->securityManager);
virObjectUnref(qemu_driver->domainEventState);
virObjectUnref(qemu_driver->qemuCapsCache);
virObjectUnref(qemu_driver->xmlopt);
virCPUDefFree(qemu_driver->hostcpu);
virCapabilitiesHostNUMAUnref(qemu_driver->hostnuma);
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,
virConfPtr 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)
{
virQEMUDriverPtr driver = conn->privateData;
/* Get rid of callbacks registered for this conn */
virCloseCallbacksRun(driver->closeCallbacks, conn, driver->domains, driver);
conn->privateData = NULL;
return 0;
}
/* Which features are supported by this driver? */
static int
qemuConnectSupportsFeature(virConnectPtr conn, int feature)
{
if (virConnectSupportsFeatureEnsureACL(conn) < 0)
return -1;
switch ((virDrvFeature) feature) {
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_FD_PASSING:
case VIR_DRV_FEATURE_TYPED_PARAM_STRING:
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:
case VIR_DRV_FEATURE_PROGRAM_KEEPALIVE:
case VIR_DRV_FEATURE_REMOTE:
case VIR_DRV_FEATURE_REMOTE_CLOSE_CALLBACK:
case VIR_DRV_FEATURE_REMOTE_EVENT_CALLBACK:
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)
{
virQEMUDriverPtr 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) {
virQEMUDriverPtr 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
qemuGetSchedInfo(unsigned long long *cpuWait,
pid_t pid, pid_t tid)
{
g_autofree char *proc = NULL;
g_autofree char *data = NULL;
char **lines = NULL;
size_t i;
int ret = -1;
double val;
*cpuWait = 0;
/* In general, we cannot assume pid_t fits in int; but /proc parsing
* is specific to Linux where int works fine. */
if (tid)
proc = g_strdup_printf("/proc/%d/task/%d/sched", (int)pid, (int)tid);
else
proc = g_strdup_printf("/proc/%d/sched", (int)pid);
if (!proc)
goto cleanup;
ret = -1;
/* The file is not guaranteed to exist (needs CONFIG_SCHED_DEBUG) */
if (access(proc, R_OK) < 0) {
ret = 0;
goto cleanup;
}
if (virFileReadAll(proc, (1<<16), &data) < 0)
goto cleanup;
lines = virStringSplit(data, "\n", 0);
if (!lines)
goto cleanup;
for (i = 0; lines[i] != NULL; i++) {
const char *line = lines[i];
/* Needs CONFIG_SCHEDSTATS. The second check
* is the old name the kernel used in past */
if (STRPREFIX(line, "se.statistics.wait_sum") ||
STRPREFIX(line, "se.wait_sum")) {
line = strchr(line, ':');
if (!line) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Missing separator in sched info '%s'"),
lines[i]);
goto cleanup;
}
line++;
while (*line == ' ')
line++;
if (virStrToDouble(line, NULL, &val) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unable to parse sched info value '%s'"),
line);
goto cleanup;
}
*cpuWait = (unsigned long long)(val * 1000000);
break;
}
}
ret = 0;
cleanup:
g_strfreev(lines);
return ret;
}
static int
qemuGetProcessInfo(unsigned long long *cpuTime, int *lastCpu, long *vm_rss,
pid_t pid, int tid)
{
g_autofree char *proc = NULL;
FILE *pidinfo;
unsigned long long usertime = 0, systime = 0;
long rss = 0;
int cpu = 0;
/* In general, we cannot assume pid_t fits in int; but /proc parsing
* is specific to Linux where int works fine. */
if (tid)
proc = g_strdup_printf("/proc/%d/task/%d/stat", (int)pid, tid);
else
proc = g_strdup_printf("/proc/%d/stat", (int)pid);
if (!proc)
return -1;
pidinfo = fopen(proc, "r");
/* See 'man proc' for information about what all these fields are. We're
* only interested in a very few of them */
if (!pidinfo ||
fscanf(pidinfo,
/* pid -> stime */
"%*d (%*[^)]) %*c %*d %*d %*d %*d %*d %*u %*u %*u %*u %*u %llu %llu"
/* cutime -> endcode */
"%*d %*d %*d %*d %*d %*d %*u %*u %ld %*u %*u %*u"
/* startstack -> processor */
"%*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %*d %d",
&usertime, &systime, &rss, &cpu) != 4) {
VIR_WARN("cannot parse process status data");
}
/* We got jiffies
* We want nanoseconds
* _SC_CLK_TCK is jiffies per second
* So calculate thus....
*/
if (cpuTime)
*cpuTime = 1000ull * 1000ull * 1000ull * (usertime + systime)
/ (unsigned long long)sysconf(_SC_CLK_TCK);
if (lastCpu)
*lastCpu = cpu;
if (vm_rss)
*vm_rss = rss * virGetSystemPageSizeKB();
VIR_DEBUG("Got status for %d/%d user=%llu sys=%llu cpu=%d rss=%ld",
(int)pid, tid, usertime, systime, cpu, rss);
VIR_FORCE_FCLOSE(pidinfo);
return 0;
}
static int
qemuDomainHelperGetVcpus(virDomainObjPtr vm,
virVcpuInfoPtr info,
unsigned long long *cpuwait,
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++) {
virDomainVcpuDefPtr 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 (qemuGetProcessInfo(&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);
virBitmapPtr map = NULL;
if (!(map = virProcessGetAffinity(vcpupid)))
return -1;
virBitmapToDataBuf(map, cpumap, maplen);
virBitmapFree(map);
}
if (cpuwait) {
if (qemuGetSchedInfo(&(cpuwait[ncpuinfo]), vm->pid, vcpupid) < 0)
return -1;
}
ncpuinfo++;
}
return ncpuinfo;
}
static virDomainPtr qemuDomainLookupByID(virConnectPtr conn,
int id)
{
virQEMUDriverPtr driver = conn->privateData;
virDomainObjPtr 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)
{
virQEMUDriverPtr driver = conn->privateData;
virDomainObjPtr 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)
{
virQEMUDriverPtr driver = conn->privateData;
virDomainObjPtr 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)
{
virDomainObjPtr 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)
{
virDomainObjPtr 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)
{
virDomainObjPtr 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)
{
virQEMUDriverPtr 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)
{
virQEMUDriverPtr driver = conn->privateData;
if (virConnectListDomainsEnsureACL(conn) < 0)
return -1;
return virDomainObjListGetActiveIDs(driver->domains, ids, nids,
virConnectListDomainsCheckACL, conn);
}
static int qemuConnectNumOfDomains(virConnectPtr conn)
{
virQEMUDriverPtr 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)
{
virQEMUDriverPtr driver = conn->privateData;
virDomainDefPtr def = NULL;
virDomainObjPtr vm = NULL;
virDomainPtr dom = NULL;
virObjectEventPtr event = NULL;
virObjectEventPtr 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, 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;
virNWFilterReadLockFilterUpdates();
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;
def = NULL;
if (qemuProcessBeginJob(driver, vm, VIR_DOMAIN_JOB_OPERATION_START,
flags) < 0) {
qemuDomainRemoveInactiveJob(driver, vm);
goto cleanup;
}
if (qemuProcessStart(conn, driver, vm, NULL, QEMU_ASYNC_JOB_START,
NULL, -1, NULL, NULL,
VIR_NETDEV_VPORT_PROFILE_OP_CREATE,
start_flags) < 0) {
virDomainAuditStart(vm, "booted", false);
qemuDomainRemoveInactive(driver, vm);
qemuProcessEndJob(driver, 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(driver, vm);
cleanup:
virDomainDefFree(def);
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
virObjectEventStateQueue(driver->domainEventState, event2);
virNWFilterUnlockFilterUpdates();
return dom;
}
static int qemuDomainSuspend(virDomainPtr dom)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
qemuDomainObjPrivatePtr priv;
virDomainPausedReason reason;
int state;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainSuspendEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
cfg = virQEMUDriverGetConfig(driver);
priv = vm->privateData;
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_SUSPEND) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (priv->job.asyncJob == QEMU_ASYNC_JOB_MIGRATION_OUT)
reason = VIR_DOMAIN_PAUSED_MIGRATION;
else if (priv->job.asyncJob == QEMU_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;
} else if (state != VIR_DOMAIN_PAUSED) {
if (qemuProcessStopCPUs(driver, vm, reason, QEMU_ASYNC_JOB_NONE) < 0)
goto endjob;
}
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
goto endjob;
ret = 0;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int qemuDomainResume(virDomainPtr dom)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
int state;
int reason;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
cfg = virQEMUDriverGetConfig(driver);
if (virDomainResumeEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(driver, vm, QEMU_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;
} else if (state == VIR_DOMAIN_RUNNING) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain is already running"));
goto endjob;
} else if ((state == VIR_DOMAIN_CRASHED &&
reason == VIR_DOMAIN_CRASHED_PANICKED) ||
state == VIR_DOMAIN_PAUSED) {
if (qemuProcessStartCPUs(driver, vm,
VIR_DOMAIN_RUNNING_UNPAUSED,
QEMU_ASYNC_JOB_NONE) < 0) {
if (virGetLastErrorCode() == VIR_ERR_OK)
virReportError(VIR_ERR_OPERATION_FAILED,
"%s", _("resume operation failed"));
goto endjob;
}
}
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
goto endjob;
ret = 0;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainShutdownFlagsAgent(virQEMUDriverPtr driver,
virDomainObjPtr vm,
bool isReboot,
bool reportError)
{
int ret = -1;
qemuAgentPtr agent;
int agentFlag = isReboot ? QEMU_AGENT_SHUTDOWN_REBOOT :
QEMU_AGENT_SHUTDOWN_POWERDOWN;
if (qemuDomainObjBeginAgentJob(driver, vm,
QEMU_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(driver, vm, false);
agent = qemuDomainObjEnterAgent(vm);
ret = qemuAgentShutdown(agent, agentFlag);
qemuDomainObjExitAgent(vm, agent);
endjob:
qemuDomainObjEndAgentJob(vm);
return ret;
}
static int
qemuDomainShutdownFlagsMonitor(virQEMUDriverPtr driver,
virDomainObjPtr vm,
bool isReboot)
{
int ret = -1;
qemuDomainObjPrivatePtr priv;
priv = vm->privateData;
if (qemuDomainObjBeginJob(driver, vm, QEMU_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(driver, vm, isReboot);
qemuDomainObjEnterMonitor(driver, vm);
ret = qemuMonitorSystemPowerdown(priv->mon);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
endjob:
qemuDomainObjEndJob(driver, vm);
return ret;
}
static int qemuDomainShutdownFlags(virDomainPtr dom, unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
qemuDomainObjPrivatePtr 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(driver, 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(driver, vm, isReboot);
}
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int qemuDomainShutdown(virDomainPtr dom)
{
return qemuDomainShutdownFlags(dom, 0);
}
static int
qemuDomainRebootAgent(virQEMUDriverPtr driver,
virDomainObjPtr vm,
bool isReboot,
bool agentForced)
{
qemuAgentPtr agent;
int ret = -1;
int agentFlag = QEMU_AGENT_SHUTDOWN_REBOOT;
if (!isReboot)
agentFlag = QEMU_AGENT_SHUTDOWN_POWERDOWN;
if (qemuDomainObjBeginAgentJob(driver, vm,
QEMU_AGENT_JOB_MODIFY) < 0)
return -1;
if (!qemuDomainAgentAvailable(vm, agentForced))
goto endjob;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
qemuDomainSetFakeReboot(driver, vm, false);
agent = qemuDomainObjEnterAgent(vm);
ret = qemuAgentShutdown(agent, agentFlag);
qemuDomainObjExitAgent(vm, agent);
endjob:
qemuDomainObjEndAgentJob(vm);
return ret;
}
static int
qemuDomainRebootMonitor(virQEMUDriverPtr driver,
virDomainObjPtr vm,
bool isReboot)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
int ret = -1;
if (qemuDomainObjBeginJob(driver, vm,
QEMU_JOB_MODIFY) < 0)
return -1;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
qemuDomainSetFakeReboot(driver, vm, isReboot);
qemuDomainObjEnterMonitor(driver, vm);
ret = qemuMonitorSystemPowerdown(priv->mon);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
endjob:
qemuDomainObjEndJob(driver, vm);
return ret;
}
static int
qemuDomainReboot(virDomainPtr dom, unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
qemuDomainObjPrivatePtr 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(driver, 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(driver, vm, isReboot);
}
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainReset(virDomainPtr dom, unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
qemuDomainObjPrivatePtr priv;
virDomainState state;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainResetEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
priv = vm->privateData;
qemuDomainObjEnterMonitor(driver, vm);
ret = qemuMonitorSystemReset(priv->mon);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
priv->fakeReboot = false;
state = virDomainObjGetState(vm, NULL);
if (state == VIR_DOMAIN_CRASHED)
virDomainObjSetState(vm, VIR_DOMAIN_PAUSED, VIR_DOMAIN_PAUSED_CRASHED);
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainDestroyFlags(virDomainPtr dom,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
virObjectEventPtr event = NULL;
qemuDomainObjPrivatePtr priv;
unsigned int stopFlags = 0;
int state;
int reason;
bool starting;
virCheckFlags(VIR_DOMAIN_DESTROY_GRACEFUL, -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(driver, vm, QEMU_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(driver, vm, false);
if (priv->job.asyncJob == QEMU_ASYNC_JOB_MIGRATION_IN)
stopFlags |= VIR_QEMU_PROCESS_STOP_MIGRATED;
qemuProcessStop(driver, vm, VIR_DOMAIN_SHUTOFF_DESTROYED,
QEMU_ASYNC_JOB_NONE, stopFlags);
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(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
return ret;
}
static int
qemuDomainDestroy(virDomainPtr dom)
{
return qemuDomainDestroyFlags(dom, 0);
}
static char *qemuDomainGetOSType(virDomainPtr dom) {
virDomainObjPtr 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)
{
virDomainObjPtr 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
qemuDomainObjPrivatePtr priv;
virDomainObjPtr vm;
virDomainDefPtr def;
virDomainDefPtr 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(driver, vm, QEMU_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;
if (def)
oldmax = virDomainDefGetMemoryTotal(def);
if (persistentDef) {
if (!oldmax || oldmax > virDomainDefGetMemoryTotal(persistentDef))
oldmax = virDomainDefGetMemoryTotal(persistentDef);
}
if (newmem > oldmax) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("cannot set memory higher than max memory"));
goto endjob;
}
if (def) {
priv = vm->privateData;
qemuDomainObjEnterMonitor(driver, vm);
r = qemuMonitorSetBalloon(priv->mon, newmem);
if (qemuDomainObjExitMonitor(driver, vm) < 0 || 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(driver, 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
qemuDomainObjPrivatePtr priv;
virDomainObjPtr vm;
virDomainDefPtr def;
virDomainDefPtr 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(driver, vm, QEMU_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(driver, vm);
r = qemuMonitorSetMemoryStatsPeriod(priv->mon, def->memballoon, period);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
goto endjob;
if (r < 0) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("unable to set balloon driver collection period"));
goto endjob;
}
def->memballoon->period = period;
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
goto endjob;
}
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(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int qemuDomainInjectNMI(virDomainPtr domain, unsigned int flags)
{
virQEMUDriverPtr driver = domain->conn->privateData;
virDomainObjPtr vm = NULL;
int ret = -1;
qemuDomainObjPrivatePtr priv;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(domain)))
return -1;
if (virDomainInjectNMIEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
priv = vm->privateData;
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
qemuDomainObjEnterMonitor(driver, vm);
ret = qemuMonitorInjectNMI(priv->mon);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
endjob:
qemuDomainObjEndJob(driver, 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)
{
virQEMUDriverPtr driver = domain->conn->privateData;
virDomainObjPtr vm = NULL;
int ret = -1;
qemuDomainObjPrivatePtr 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(driver, vm, QEMU_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
qemuDomainObjEnterMonitor(driver, vm);
ret = qemuMonitorSendKey(priv->mon, holdtime, keycodes, nkeycodes);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetInfo(virDomainPtr dom,
virDomainInfoPtr info)
{
unsigned long long maxmem;
virDomainObjPtr 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 (qemuGetProcessInfo(&(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)
{
virDomainObjPtr 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)
{
virDomainObjPtr vm;
qemuDomainObjPrivatePtr 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(virQEMUDriverPtr driver,
virDomainObjPtr vm, const char *path,
int compressed, virCommandPtr compressor,
const char *xmlin, unsigned int flags)
{
g_autofree char *xml = NULL;
bool was_running = false;
int ret = -1;
virObjectEventPtr event = NULL;
qemuDomainObjPrivatePtr priv = vm->privateData;
virQEMUSaveDataPtr data = NULL;
g_autoptr(qemuDomainSaveCookie) cookie = NULL;
if (!qemuMigrationSrcIsAllowed(driver, vm, false, 0))
goto cleanup;
if (qemuDomainObjBeginAsyncJob(driver, vm, QEMU_ASYNC_JOB_SAVE,
VIR_DOMAIN_JOB_OPERATION_SAVE, flags) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("guest unexpectedly quit"));
goto endjob;
}
priv->job.current->statsType = 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,
QEMU_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, QEMU_ASYNC_JOB_SAVE);
if (ret < 0)
goto endjob;
/* Shut it down */
qemuProcessStop(driver, vm, VIR_DOMAIN_SHUTOFF_SAVED,
QEMU_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,
QEMU_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(driver, vm);
if (ret == 0)
qemuDomainRemoveInactiveJob(driver, vm);
cleanup:
virQEMUSaveDataFree(data);
virObjectEventStateQueue(driver->domainEventState, event);
return ret;
}
static int
qemuDomainSaveFlags(virDomainPtr dom, const char *path, const char *dxml,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
int compressed;
g_autoptr(virCommand) compressor = NULL;
int ret = -1;
virDomainObjPtr 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 char *
qemuDomainManagedSavePath(virQEMUDriverPtr driver, virDomainObjPtr vm)
{
char *ret;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
if (!(ret = g_strdup_printf("%s/%s.save", cfg->saveDir, vm->def->name)))
return NULL;
return ret;
}
static int
qemuDomainManagedSave(virDomainPtr dom, unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
int compressed;
g_autoptr(virCommand) compressor = NULL;
virDomainObjPtr vm;
g_autofree char *name = NULL;
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;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
if (!vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot do managed save for transient domain"));
goto cleanup;
}
cfg = virQEMUDriverGetConfig(driver);
if ((compressed = qemuSaveImageGetCompressionProgram(cfg->saveImageFormat,
&compressor,
"save", false)) < 0)
goto cleanup;
if (!(name = qemuDomainManagedSavePath(driver, vm)))
goto cleanup;
VIR_INFO("Saving state of domain '%s' to '%s'", vm->def->name, name);
ret = qemuDomainSaveInternal(driver, vm, name, compressed,
compressor, NULL, flags);
if (ret == 0)
vm->hasManagedSave = true;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainManagedSaveLoad(virDomainObjPtr vm,
void *opaque)
{
virQEMUDriverPtr driver = opaque;
g_autofree char *name = NULL;
int ret = -1;
virObjectLock(vm);
if (!(name = qemuDomainManagedSavePath(driver, vm)))
goto cleanup;
vm->hasManagedSave = virFileExists(name);
ret = 0;
cleanup:
virObjectUnlock(vm);
return ret;
}
static int
qemuDomainHasManagedSaveImage(virDomainPtr dom, unsigned int flags)
{
virDomainObjPtr 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr 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;
if (!(name = qemuDomainManagedSavePath(driver, vm)))
goto cleanup;
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(virDomainObjPtr vm)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
qemuDomainJobPrivatePtr jobPriv = priv->job.privateData;
VIR_DEBUG("Waiting for dump completion");
while (!jobPriv->dumpCompleted && !priv->job.abortJob) {
if (virDomainObjWait(vm) < 0)
return -1;
}
if (priv->job.current->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;
}
qemuDomainJobInfoUpdateTime(priv->job.current);
return 0;
}
static int
qemuDumpToFd(virQEMUDriverPtr driver,
virDomainObjPtr vm,
int fd,
qemuDomainAsyncJob asyncJob,
const char *dumpformat)
{
qemuDomainObjPrivatePtr 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)
priv->job.current->statsType = QEMU_DOMAIN_JOB_STATS_TYPE_MEMDUMP;
else
g_clear_pointer(&priv->job.current, qemuDomainJobInfoFree);
if (qemuDomainObjEnterMonitorAsync(driver, 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);
ignore_value(qemuDomainObjExitMonitor(driver, vm));
return -1;
}
}
ret = qemuMonitorDumpToFd(priv->mon, fd, dumpformat, detach);
if ((qemuDomainObjExitMonitor(driver, vm) < 0) || ret < 0)
return -1;
if (detach)
ret = qemuDumpWaitForCompletion(vm);
return ret;
}
static int
doCoreDump(virQEMUDriverPtr driver,
virDomainObjPtr vm,
const char *path,
unsigned int dump_flags,
unsigned int dumpformat)
{
int fd = -1;
int ret = -1;
int rc = -1;
virFileWrapperFdPtr wrapperFd = NULL;
int directFlag = 0;
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;
}
}
/* Core dumps usually imply last-ditch analysis efforts are
* desired, so we intentionally do not unlink even if a file was
* created. */
if ((fd = virQEMUFileOpenAs(cfg->user, cfg->group, false, path,
O_CREAT | O_TRUNC | O_WRONLY | directFlag,
NULL)) < 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;
rc = qemuDumpToFd(driver, vm, fd, QEMU_ASYNC_JOB_DUMP,
memory_dump_format);
} 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, 0))
goto cleanup;
rc = qemuMigrationSrcToFile(driver, vm, fd, compressor,
QEMU_ASYNC_JOB_DUMP);
}
if (rc < 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)
unlink(path);
return ret;
}
static int
qemuDomainCoreDumpWithFormat(virDomainPtr dom,
const char *path,
unsigned int dumpformat,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
qemuDomainObjPrivatePtr priv = NULL;
bool resume = false, paused = false;
int ret = -1;
virObjectEventPtr 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(driver, vm,
QEMU_ASYNC_JOB_DUMP,
VIR_DOMAIN_JOB_OPERATION_DUMP,
flags) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
priv = vm->privateData;
priv->job.current->statsType = 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,
QEMU_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,
QEMU_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(driver, vm);
ret = qemuMonitorSystemReset(priv->mon);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
}
if (resume && virDomainObjIsActive(vm)) {
if (qemuProcessStartCPUs(driver, vm,
VIR_DOMAIN_RUNNING_UNPAUSED,
QEMU_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(driver, vm);
if (ret == 0 && flags & VIR_DUMP_CRASH)
qemuDomainRemoveInactiveJob(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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
qemuDomainObjPrivatePtr priv;
g_autofree char *tmp = NULL;
int tmp_fd = -1;
size_t i;
const char *videoAlias = NULL;
char *ret = NULL;
bool unlink_tmp = false;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virCheckFlags(0, NULL);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
priv = vm->privateData;
cfg = virQEMUDriverGetConfig(driver);
if (virDomainScreenshotEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(driver, vm, QEMU_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;
}
}
if (!(tmp = g_strdup_printf("%s/qemu.screendump.XXXXXX", cfg->cacheDir)))
goto endjob;
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(driver, vm);
if (qemuMonitorScreendump(priv->mon, videoAlias, screen, tmp) < 0) {
ignore_value(qemuDomainObjExitMonitor(driver, vm));
goto endjob;
}
if (qemuDomainObjExitMonitor(driver, vm) < 0)
goto endjob;
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)
unlink(tmp);
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static char *
getAutoDumpPath(virQEMUDriverPtr driver,
virDomainObjPtr 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(virQEMUDriverPtr driver,
virDomainObjPtr 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(driver, vm,
QEMU_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,
QEMU_ASYNC_JOB_DUMP);
if (ret < 0)
virReportError(VIR_ERR_OPERATION_FAILED,
"%s", _("Resuming after dump failed"));
break;
default:
return;
}
endjob:
qemuDomainObjEndAsyncJob(driver, vm);
}
static int
doCoreDumpToAutoDumpPath(virQEMUDriverPtr driver,
virDomainObjPtr 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(virQEMUDriverPtr driver,
virDomainObjPtr vm,
qemuMonitorEventPanicInfoPtr 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(virQEMUDriverPtr driver,
virDomainObjPtr vm,
int action,
qemuMonitorEventPanicInfoPtr info)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
virObjectEventPtr event = NULL;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
bool removeInactive = false;
unsigned long flags = VIR_DUMP_MEMORY_ONLY;
if (qemuDomainObjBeginAsyncJob(driver, vm, QEMU_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);
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0) {
VIR_WARN("Unable to save status on vm %s after state change",
vm->def->name);
}
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,
QEMU_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(driver, vm, true);
qemuProcessShutdownOrReboot(driver, vm);
break;
case VIR_DOMAIN_LIFECYCLE_ACTION_PRESERVE:
break;
default:
break;
}
endjob:
qemuDomainObjEndAsyncJob(driver, vm);
if (removeInactive)
qemuDomainRemoveInactiveJob(driver, vm);
}
static void
processDeviceDeletedEvent(virQEMUDriverPtr driver,
virDomainObjPtr vm,
const char *devAlias)
{
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
virDomainDeviceDef dev;
VIR_DEBUG("Removing device %s from domain %p %s",
devAlias, vm, vm->def->name);
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
return;
if (!virDomainObjIsActive(vm)) {
VIR_DEBUG("Domain is not running");
goto endjob;
}
if (STRPREFIX(devAlias, "vcpu")) {
qemuDomainRemoveVcpuAlias(driver, vm, devAlias);
} else {
if (virDomainDefFindDevice(vm->def, devAlias, &dev, true) < 0)
goto endjob;
if (qemuDomainRemoveDevice(driver, vm, &dev) < 0)
goto endjob;
}
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
VIR_WARN("unable to save domain status after removing device %s",
devAlias);
endjob:
qemuDomainObjEndJob(driver, vm);
}
static void
syncNicRxFilterMacAddr(char *ifname, virNetDevRxFilterPtr guestFilter,
virNetDevRxFilterPtr 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, virNetDevRxFilterPtr guestFilter,
virNetDevRxFilterPtr 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, virNetDevRxFilterPtr guestFilter,
virNetDevRxFilterPtr 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,
virNetDevRxFilterPtr guestFilter,
virNetDevRxFilterPtr 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, virNetDevRxFilterPtr guestFilter,
virNetDevRxFilterPtr 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, virNetDevRxFilterPtr guestFilter,
virNetDevRxFilterPtr hostFilter)
{
syncNicRxFilterPromiscMode(ifname, guestFilter, hostFilter);
syncNicRxFilterMultiMode(ifname, guestFilter, hostFilter);
}
static void
syncNicRxFilterMulticast(char *ifname,
virNetDevRxFilterPtr guestFilter,
virNetDevRxFilterPtr hostFilter)
{
syncNicRxFilterGuestMulticast(ifname, guestFilter, hostFilter);
syncNicRxFilterHostMulticast(ifname, guestFilter, hostFilter);
}
static void
processNicRxFilterChangedEvent(virQEMUDriverPtr driver,
virDomainObjPtr vm,
const char *devAlias)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
virDomainDeviceDef dev;
virDomainNetDefPtr def;
virNetDevRxFilterPtr guestFilter = NULL;
virNetDevRxFilterPtr 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(driver, vm, QEMU_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(driver, vm);
ret = qemuMonitorQueryRxFilter(priv->mon, devAlias, &guestFilter);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
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(driver, vm);
cleanup:
virNetDevRxFilterFree(hostFilter);
virNetDevRxFilterFree(guestFilter);
}
static void
processSerialChangedEvent(virQEMUDriverPtr driver,
virDomainObjPtr vm,
const char *devAlias,
bool connected)
{
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
virDomainChrDeviceState newstate;
virObjectEventPtr event = NULL;
virDomainDeviceDef dev;
qemuDomainObjPrivatePtr 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(driver, vm, QEMU_JOB_MODIFY) < 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;
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
VIR_WARN("unable to save status of domain %s after updating state of "
"channel %s", vm->def->name, devAlias);
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) {
qemuAgentClose(priv->agent);
priv->agent = NULL;
}
priv->agentError = false;
}
event = virDomainEventAgentLifecycleNewFromObj(vm, newstate,
VIR_CONNECT_DOMAIN_EVENT_AGENT_LIFECYCLE_REASON_CHANNEL);
virObjectEventStateQueue(driver->domainEventState, event);
}
endjob:
qemuDomainObjEndJob(driver, vm);
}
static void
processBlockJobEvent(virQEMUDriverPtr driver,
virDomainObjPtr vm,
const char *diskAlias,
int type,
int status)
{
virDomainDiskDefPtr disk;
g_autoptr(qemuBlockJobData) job = NULL;
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
return;
if (!virDomainObjIsActive(vm)) {
VIR_DEBUG("Domain is not running");
goto endjob;
}
if (!(disk = qemuProcessFindDomainDiskByAliasOrQOM(vm, diskAlias, NULL))) {
VIR_DEBUG("disk %s not found", diskAlias);
goto endjob;
}
if (!(job = qemuBlockJobDiskGetJob(disk))) {
VIR_DEBUG("creating new block job object for '%s'", diskAlias);
if (!(job = qemuBlockJobDiskNew(vm, disk, type, diskAlias)))
goto endjob;
job->state = QEMU_BLOCKJOB_STATE_RUNNING;
}
job->newstate = status;
qemuBlockJobUpdate(vm, job, QEMU_ASYNC_JOB_NONE);
endjob:
qemuDomainObjEndJob(driver, vm);
}
static void
processJobStatusChangeEvent(virQEMUDriverPtr driver,
virDomainObjPtr vm,
qemuBlockJobDataPtr job)
{
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
return;
if (!virDomainObjIsActive(vm)) {
VIR_DEBUG("Domain is not running");
goto endjob;
}
qemuBlockJobUpdate(vm, job, QEMU_ASYNC_JOB_NONE);
endjob:
qemuDomainObjEndJob(driver, vm);
}
static void
processMonitorEOFEvent(virQEMUDriverPtr driver,
virDomainObjPtr vm)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
int eventReason = VIR_DOMAIN_EVENT_STOPPED_SHUTDOWN;
int stopReason = VIR_DOMAIN_SHUTOFF_SHUTDOWN;
const char *auditReason = "shutdown";
unsigned int stopFlags = 0;
virObjectEventPtr event = NULL;
if (qemuProcessBeginStopJob(driver, vm, QEMU_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 == QEMU_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, QEMU_ASYNC_JOB_NONE, stopFlags);
virDomainAuditStop(vm, auditReason);
virObjectEventStateQueue(driver->domainEventState, event);
endjob:
qemuDomainRemoveInactive(driver, vm);
qemuDomainObjEndJob(driver, vm);
}
static void
processPRDisconnectEvent(virDomainObjPtr vm)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
if (!virDomainObjIsActive(vm))
return;
if (!priv->prDaemonRunning &&
qemuDomainDefHasManagedPR(vm))
qemuProcessStartManagedPRDaemon(vm);
}
static void
processRdmaGidStatusChangedEvent(virDomainObjPtr vm,
qemuMonitorRdmaGidStatusPtr 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(virQEMUDriverPtr driver,
virDomainObjPtr vm)
{
virObjectEventPtr event = NULL;
event = virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_CRASHED,
VIR_DOMAIN_EVENT_CRASHED_CRASHLOADED);
virObjectEventStateQueue(driver->domainEventState, event);
}
static void qemuProcessEventHandler(void *data, void *opaque)
{
struct qemuProcessEvent *processEvent = data;
virDomainObjPtr vm = processEvent->vm;
virQEMUDriverPtr 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(driver, vm, processEvent->data);
break;
case QEMU_PROCESS_EVENT_SERIAL_CHANGED:
processSerialChangedEvent(driver, vm, processEvent->data,
processEvent->action);
break;
case QEMU_PROCESS_EVENT_BLOCK_JOB:
processBlockJobEvent(driver, vm,
processEvent->data,
processEvent->action,
processEvent->status);
break;
case QEMU_PROCESS_EVENT_JOB_STATUS_CHANGE:
processJobStatusChangeEvent(driver, 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_LAST:
break;
}
virDomainObjEndAPI(&vm);
qemuProcessEventFree(processEvent);
}
static int
qemuDomainSetVcpusAgent(virDomainObjPtr vm,
unsigned int nvcpus)
{
qemuAgentCPUInfoPtr cpuinfo = NULL;
qemuAgentPtr 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(virQEMUDriverPtr driver,
virDomainObjPtr vm,
virDomainDefPtr def,
virDomainDefPtr persistentDef,
unsigned int nvcpus)
{
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
qemuDomainObjPrivatePtr 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
virDomainDefPtr def;
virDomainDefPtr 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(driver, vm, QEMU_AGENT_JOB_MODIFY) < 0)
goto cleanup;
} else {
if (qemuDomainObjBeginJob(driver, vm, QEMU_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(driver, 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(virDomainObjPtr vm,
virDomainDefPtr def,
int vcpu,
virQEMUDriverPtr driver,
virQEMUDriverConfigPtr cfg,
virBitmapPtr cpumap)
{
virBitmapPtr tmpmap = NULL;
virDomainVcpuDefPtr vcpuinfo;
qemuDomainObjPrivatePtr priv = vm->privateData;
g_autoptr(virCgroup) cgroup_vcpu = NULL;
g_autofree char *str = NULL;
virObjectEventPtr 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 (qemuSetupCgroupCpusetCpus(cgroup_vcpu, cpumap) < 0)
goto cleanup;
}
if (virProcessSetAffinity(qemuDomainGetVcpuPid(vm, vcpu),
cpumap, false) < 0)
goto cleanup;
}
virBitmapFree(vcpuinfo->cpumask);
vcpuinfo->cpumask = tmpmap;
tmpmap = NULL;
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
goto cleanup;
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:
virBitmapFree(tmpmap);
virObjectEventStateQueue(driver->domainEventState, event);
return ret;
}
static int
qemuDomainPinVcpuFlags(virDomainPtr dom,
unsigned int vcpu,
unsigned char *cpumap,
int maplen,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
virDomainDefPtr def;
virDomainDefPtr persistentDef;
int ret = -1;
virBitmapPtr pcpumap = NULL;
virDomainVcpuDefPtr 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(driver, vm, QEMU_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, cfg, pcpumap) < 0)
goto endjob;
if (persistentDef) {
virBitmapFree(vcpuinfo->cpumask);
vcpuinfo->cpumask = pcpumap;
pcpumap = NULL;
ret = virDomainDefSave(persistentDef, driver->xmlopt, cfg->configDir);
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
virBitmapFree(pcpumap);
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)
{
virDomainObjPtr vm = NULL;
virDomainDefPtr def;
bool live;
int ret = -1;
g_autoptr(virBitmap) hostcpus = NULL;
virBitmapPtr 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
g_autoptr(virCgroup) cgroup_emulator = NULL;
virDomainDefPtr def;
virDomainDefPtr persistentDef;
int ret = -1;
qemuDomainObjPrivatePtr priv;
virBitmapPtr pcpumap = NULL;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virObjectEventPtr 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(driver, vm, QEMU_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 (qemuSetupCgroupCpusetCpus(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);
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
goto endjob;
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(driver, vm);
cleanup:
virObjectEventStateQueue(driver->domainEventState, event);
virBitmapFree(pcpumap);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetEmulatorPinInfo(virDomainPtr dom,
unsigned char *cpumaps,
int maplen,
unsigned int flags)
{
virDomainObjPtr vm = NULL;
virDomainDefPtr def;
bool live;
int ret = -1;
virBitmapPtr cpumask = NULL;
g_autoptr(virBitmap) bitmap = NULL;
virBitmapPtr 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)
{
virDomainObjPtr 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, maxinfo, cpumaps, maplen);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetVcpusFlags(virDomainPtr dom, unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
virDomainDefPtr def;
int ret = -1;
qemuAgentCPUInfoPtr cpuinfo = NULL;
qemuAgentPtr 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(driver, vm, QEMU_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(virQEMUDriverPtr driver,
virDomainObjPtr vm,
qemuMonitorIOThreadInfoPtr **iothreads)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
int niothreads = 0;
qemuDomainObjEnterMonitor(driver, vm);
niothreads = qemuMonitorGetIOThreads(priv->mon, iothreads);
if (qemuDomainObjExitMonitor(driver, vm) < 0 || niothreads < 0)
return -1;
return niothreads;
}
static int
qemuDomainGetIOThreadsLive(virQEMUDriverPtr driver,
virDomainObjPtr vm,
virDomainIOThreadInfoPtr **info)
{
qemuDomainObjPrivatePtr priv;
qemuMonitorIOThreadInfoPtr *iothreads = NULL;
virDomainIOThreadInfoPtr *info_ret = NULL;
int niothreads = 0;
size_t i;
int ret = -1;
if (qemuDomainObjBeginJob(driver, vm, QEMU_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 ((niothreads = qemuDomainGetIOThreadsMon(driver, vm, &iothreads)) < 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++) {
virBitmapPtr 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) {
virBitmapFree(map);
goto endjob;
}
virBitmapFree(map);
}
*info = g_steal_pointer(&info_ret);
ret = niothreads;
endjob:
qemuDomainObjEndJob(driver, 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
qemuDomainGetIOThreadsConfig(virDomainDefPtr targetDef,
virDomainIOThreadInfoPtr **info)
{
virDomainIOThreadInfoPtr *info_ret = NULL;
virBitmapPtr bitmap = NULL;
virBitmapPtr cpumask = NULL;
size_t i;
int ret = -1;
if (targetDef->niothreadids == 0)
return 0;
info_ret = g_new0(virDomainIOThreadInfoPtr, targetDef->niothreadids);
for (i = 0; i < targetDef->niothreadids; i++) {
info_ret[i] = g_new0(virDomainIOThreadInfo, 1);
/* IOThread ID's are taken from the iothreadids list */
info_ret[i]->iothread_id = targetDef->iothreadids[i]->iothread_id;
cpumask = targetDef->iothreadids[i]->cpumask;
if (!cpumask) {
if (targetDef->cpumask) {
cpumask = targetDef->cpumask;
} else {
if (!(bitmap = virHostCPUGetAvailableCPUsBitmap()))
goto cleanup;
cpumask = bitmap;
}
}
if (virBitmapToData(cpumask, &info_ret[i]->cpumap,
&info_ret[i]->cpumaplen) < 0)
goto cleanup;
virBitmapFree(bitmap);
bitmap = NULL;
}
*info = info_ret;
info_ret = NULL;
ret = targetDef->niothreadids;
cleanup:
if (info_ret) {
for (i = 0; i < targetDef->niothreadids; i++)
virDomainIOThreadInfoFree(info_ret[i]);
VIR_FREE(info_ret);
}
virBitmapFree(bitmap);
return ret;
}
static int
qemuDomainGetIOThreadInfo(virDomainPtr dom,
virDomainIOThreadInfoPtr **info,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
virDomainDefPtr 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(driver, vm, info);
else
ret = qemuDomainGetIOThreadsConfig(targetDef, info);
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;
virQEMUDriverPtr driver = dom->conn->privateData;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virDomainObjPtr vm;
virDomainDefPtr def;
virDomainDefPtr persistentDef;
virBitmapPtr pcpumap = NULL;
qemuDomainObjPrivatePtr priv;
g_autoptr(virCgroup) cgroup_iothread = NULL;
virObjectEventPtr 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(driver, vm, QEMU_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) {
virDomainIOThreadIDDefPtr iothrid;
virBitmapPtr cpumask;
if (!(iothrid = virDomainIOThreadIDFind(def, iothread_id))) {
virReportError(VIR_ERR_INVALID_ARG,
_("iothread %d not found"), iothread_id);
goto endjob;
}
if (!(cpumask = virBitmapNewData(cpumap, maplen)))
goto endjob;
virBitmapFree(iothrid->cpumask);
iothrid->cpumask = cpumask;
iothrid->autofill = false;
/* 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 (qemuSetupCgroupCpusetCpus(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;
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
goto endjob;
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) {
virDomainIOThreadIDDefPtr iothrid;
virBitmapPtr cpumask;
if (!(iothrid = virDomainIOThreadIDFind(persistentDef, iothread_id))) {
virReportError(VIR_ERR_INVALID_ARG,
_("iothreadid %d not found"), iothread_id);
goto endjob;
}
if (!(cpumask = virBitmapNewData(cpumap, maplen)))
goto endjob;
virBitmapFree(iothrid->cpumask);
iothrid->cpumask = cpumask;
iothrid->autofill = false;
ret = virDomainDefSave(persistentDef, driver->xmlopt, cfg->configDir);
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virObjectEventStateQueue(driver->domainEventState, event);
virBitmapFree(pcpumap);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainHotplugAddIOThread(virQEMUDriverPtr driver,
virDomainObjPtr vm,
unsigned int iothread_id)
{
qemuDomainObjPrivatePtr 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;
qemuMonitorIOThreadInfoPtr *new_iothreads = NULL;
virDomainIOThreadIDDefPtr iothrid;
virJSONValuePtr props = NULL;
if (!(alias = g_strdup_printf("iothread%u", iothread_id)))
return -1;
if (qemuMonitorCreateObjectProps(&props, "iothread", alias, NULL) < 0)
goto cleanup;
qemuDomainObjEnterMonitor(driver, vm);
if (qemuMonitorAddObject(priv->mon, &props, NULL) < 0)
goto exit_monitor;
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 ((new_niothreads = qemuMonitorGetIOThreads(priv->mon,
&new_iothreads)) < 0)
goto exit_monitor;
if (qemuDomainObjExitMonitor(driver, vm) < 0)
goto cleanup;
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;
iothrid->thread_id = new_iothreads[idx]->thread_id;
if (qemuProcessSetupIOThread(vm, iothrid) < 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", ret == 0);
virJSONValueFree(props);
return ret;
exit_monitor:
ignore_value(qemuDomainObjExitMonitor(driver, vm));
goto cleanup;
}
static int
qemuDomainHotplugModIOThread(virQEMUDriverPtr driver,
virDomainObjPtr vm,
qemuMonitorIOThreadInfo iothread)
{
qemuDomainObjPrivatePtr 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(driver, vm);
rc = qemuMonitorSetIOThread(priv->mon, &iothread);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
return -1;
if (rc < 0)
return -1;
return 0;
}
static int
qemuDomainHotplugDelIOThread(virQEMUDriverPtr driver,
virDomainObjPtr vm,
unsigned int iothread_id)
{
qemuDomainObjPrivatePtr 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;
qemuMonitorIOThreadInfoPtr *new_iothreads = NULL;
if (!(alias = g_strdup_printf("iothread%u", iothread_id)))
return -1;
qemuDomainObjEnterMonitor(driver, vm);
rc = qemuMonitorDelObject(priv->mon, alias, true);
exp_niothreads--;
if (rc < 0)
goto exit_monitor;
if ((new_niothreads = qemuMonitorGetIOThreads(priv->mon,
&new_iothreads)) < 0)
goto exit_monitor;
if (qemuDomainObjExitMonitor(driver, vm) < 0)
goto cleanup;
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:
ignore_value(qemuDomainObjExitMonitor(driver, vm));
goto cleanup;
}
static int
qemuDomainAddIOThreadCheck(virDomainDefPtr def,
unsigned int iothread_id)
{
if (virDomainIOThreadIDFind(def, iothread_id)) {
virReportError(VIR_ERR_INVALID_ARG,
_("an IOThread is already using iothread_id '%u'"),
iothread_id);
return -1;
}
return 0;
}
static int
qemuDomainDelIOThreadCheck(virDomainDefPtr def,
unsigned int iothread_id)
{
size_t i;
if (!virDomainIOThreadIDFind(def, iothread_id)) {
virReportError(VIR_ERR_INVALID_ARG,
_("cannot find IOThread '%u' in iothreadids list"),
iothread_id);
return -1;
}
for (i = 0; i < def->ndisks; i++) {
if (def->disks[i]->iothread == iothread_id) {
virReportError(VIR_ERR_INVALID_ARG,
_("cannot remove IOThread %u since it "
"is being used by disk '%s'"),
iothread_id, def->disks[i]->dst);
return -1;
}
}
for (i = 0; i < def->ncontrollers; i++) {
if (def->controllers[i]->iothread == iothread_id) {
virReportError(VIR_ERR_INVALID_ARG,
_("cannot remove IOThread '%u' since it "
"is being used by controller"),
iothread_id);
return -1;
}
}
return 0;
}
/**
* @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,
qemuMonitorIOThreadInfoPtr 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,
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 (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;
}
return 0;
}
typedef enum {
VIR_DOMAIN_IOTHREAD_ACTION_ADD,
VIR_DOMAIN_IOTHREAD_ACTION_DEL,
VIR_DOMAIN_IOTHREAD_ACTION_MOD,
} virDomainIOThreadAction;
static int
qemuDomainChgIOThread(virQEMUDriverPtr driver,
virDomainObjPtr vm,
qemuMonitorIOThreadInfo iothread,
virDomainIOThreadAction action,
unsigned int flags)
{
g_autoptr(virQEMUDriverConfig) cfg = NULL;
qemuDomainObjPrivatePtr priv;
virDomainDefPtr def;
virDomainDefPtr persistentDef;
int ret = -1;
cfg = virQEMUDriverGetConfig(driver);
priv = vm->privateData;
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
return -1;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
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 (qemuDomainAddIOThreadCheck(def, iothread.iothread_id) < 0)
goto endjob;
if (qemuDomainHotplugAddIOThread(driver, vm, iothread.iothread_id) < 0)
goto endjob;
break;
case VIR_DOMAIN_IOTHREAD_ACTION_DEL:
if (qemuDomainDelIOThreadCheck(def, iothread.iothread_id) < 0)
goto endjob;
if (qemuDomainHotplugDelIOThread(driver, vm, iothread.iothread_id) < 0)
goto endjob;
break;
case VIR_DOMAIN_IOTHREAD_ACTION_MOD:
if (!(virDomainIOThreadIDFind(def, iothread.iothread_id))) {
virReportError(VIR_ERR_INVALID_ARG,
_("cannot find IOThread '%u' in iothreadids"),
iothread.iothread_id);
goto endjob;
}
if (qemuDomainHotplugModIOThread(driver, vm, iothread) < 0)
goto endjob;
break;
}
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
goto endjob;
}
if (persistentDef) {
switch (action) {
case VIR_DOMAIN_IOTHREAD_ACTION_ADD:
if (qemuDomainAddIOThreadCheck(persistentDef, iothread.iothread_id) < 0)
goto endjob;
if (!virDomainIOThreadIDAdd(persistentDef, iothread.iothread_id))
goto endjob;
break;
case VIR_DOMAIN_IOTHREAD_ACTION_DEL:
if (qemuDomainDelIOThreadCheck(persistentDef, iothread.iothread_id) < 0)
goto endjob;
virDomainIOThreadIDDel(persistentDef, iothread.iothread_id);
break;
case VIR_DOMAIN_IOTHREAD_ACTION_MOD:
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("configuring persistent polling values is "
"not supported"));
goto endjob;
break;
}
if (virDomainDefSave(persistentDef, driver->xmlopt,
cfg->configDir) < 0)
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(driver, vm);
return ret;
}
static int
qemuDomainAddIOThread(virDomainPtr dom,
unsigned int iothread_id,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
qemuMonitorIOThreadInfo iothread = {0};
int ret = -1;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE, -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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr 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 virDomainObjPtr 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr 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;
virSecurityManagerPtr* 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)
{
virQEMUDriverPtr driver = conn->privateData;
char *p;
g_autoptr(virCaps) caps = NULL;
memset(secmodel, 0, sizeof(*secmodel));
if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
return 0;
if (virNodeGetSecurityModelEnsureACL(conn) < 0)
return 0;
/* We treat no driver as success, but simply return no data in *secmodel */
if (caps->host.nsecModels == 0 ||
caps->host.secModels[0].model == NULL)
return 0;
p = caps->host.secModels[0].model;
if (strlen(p) >= VIR_SECURITY_MODEL_BUFLEN-1) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("security model string exceeds max %d bytes"),
VIR_SECURITY_MODEL_BUFLEN-1);
return -1;
}
strcpy(secmodel->model, p);
p = caps->host.secModels[0].doi;
if (strlen(p) >= VIR_SECURITY_DOI_BUFLEN-1) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("security DOI string exceeds max %d bytes"),
VIR_SECURITY_DOI_BUFLEN-1);
return -1;
}
strcpy(secmodel->doi, p);
return 0;
}
static int
qemuDomainRestoreFlags(virConnectPtr conn,
const char *path,
const char *dxml,
unsigned int flags)
{
virQEMUDriverPtr driver = conn->privateData;
qemuDomainObjPrivatePtr priv = NULL;
virDomainDefPtr def = NULL;
virDomainObjPtr vm = NULL;
g_autofree char *xmlout = NULL;
const char *newxml = dxml;
int fd = -1;
int ret = -1;
virQEMUSaveDataPtr data = NULL;
virFileWrapperFdPtr wrapperFd = NULL;
bool hook_taint = false;
virCheckFlags(VIR_DOMAIN_SAVE_BYPASS_CACHE |
VIR_DOMAIN_SAVE_RUNNING |
VIR_DOMAIN_SAVE_PAUSED, -1);
virNWFilterReadLockFilterUpdates();
fd = qemuSaveImageOpen(driver, NULL, path, &def, &data,
(flags & VIR_DOMAIN_SAVE_BYPASS_CACHE) != 0,
&wrapperFd, false, false);
if (fd < 0)
goto cleanup;
if (virDomainRestoreFlagsEnsureACL(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) {
virDomainDefPtr 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;
def = NULL;
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(driver, vm, VIR_DOMAIN_JOB_OPERATION_RESTORE,
flags) < 0)
goto cleanup;
ret = qemuSaveImageStartVM(conn, driver, vm, &fd, data, path,
false, QEMU_ASYNC_JOB_START);
qemuProcessEndJob(driver, vm);
cleanup:
virDomainDefFree(def);
VIR_FORCE_CLOSE(fd);
if (virFileWrapperFdClose(wrapperFd) < 0)
ret = -1;
virFileWrapperFdFree(wrapperFd);
virQEMUSaveDataFree(data);
if (vm && ret < 0)
qemuDomainRemoveInactiveJob(driver, vm);
virDomainObjEndAPI(&vm);
virNWFilterUnlockFilterUpdates();
return ret;
}
static int
qemuDomainRestore(virConnectPtr conn,
const char *path)
{
return qemuDomainRestoreFlags(conn, path, NULL, 0);
}
static char *
qemuDomainSaveImageGetXMLDesc(virConnectPtr conn, const char *path,
unsigned int flags)
{
virQEMUDriverPtr driver = conn->privateData;
char *ret = NULL;
virDomainDefPtr def = NULL;
int fd = -1;
virQEMUSaveDataPtr 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);
virDomainDefFree(def);
VIR_FORCE_CLOSE(fd);
return ret;
}
static int
qemuDomainSaveImageDefineXML(virConnectPtr conn, const char *path,
const char *dxml, unsigned int flags)
{
virQEMUDriverPtr driver = conn->privateData;
int ret = -1;
virDomainDefPtr def = NULL;
virDomainDefPtr newdef = NULL;
int fd = -1;
virQEMUSaveDataPtr 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:
virDomainDefFree(def);
virDomainDefFree(newdef);
VIR_FORCE_CLOSE(fd);
virQEMUSaveDataFree(data);
return ret;
}
static char *
qemuDomainManagedSaveGetXMLDesc(virDomainPtr dom, unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
g_autofree char *path = NULL;
char *ret = NULL;
virDomainDefPtr def = NULL;
int fd = -1;
virQEMUSaveDataPtr data = NULL;
qemuDomainObjPrivatePtr 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;
if (!(path = qemuDomainManagedSavePath(driver, vm)))
goto cleanup;
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);
virDomainDefFree(def);
VIR_FORCE_CLOSE(fd);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainManagedSaveDefineXML(virDomainPtr dom, const char *dxml,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virConnectPtr conn = dom->conn;
virDomainObjPtr vm;
g_autofree char *path = NULL;
int ret = -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
if (virDomainManagedSaveDefineXMLEnsureACL(conn, vm->def) < 0)
goto cleanup;
if (!(path = qemuDomainManagedSavePath(driver, vm)))
goto cleanup;
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,
virQEMUDriverPtr driver,
virDomainObjPtr vm,
const char *path,
bool start_paused,
bool bypass_cache,
qemuDomainAsyncJob asyncJob)
{
virDomainDefPtr def = NULL;
qemuDomainObjPrivatePtr priv = vm->privateData;
int fd = -1;
int ret = -1;
g_autofree char *xmlout = NULL;
virQEMUSaveDataPtr data = NULL;
virFileWrapperFdPtr 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)) {
virDomainDefPtr 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);
def = NULL;
ret = qemuSaveImageStartVM(conn, driver, vm, &fd, data, path,
start_paused, asyncJob);
cleanup:
virQEMUSaveDataFree(data);
virDomainDefFree(def);
VIR_FORCE_CLOSE(fd);
if (virFileWrapperFdClose(wrapperFd) < 0)
ret = -1;
virFileWrapperFdFree(wrapperFd);
return ret;
}
static char
*qemuDomainGetXMLDesc(virDomainPtr dom,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr 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(virDomainHostdevDefPtr hostdev)
{
if (virHostdevIsSCSIDevice(hostdev)) {
virDomainHostdevSubsysSCSIPtr scsisrc = &hostdev->source.subsys.u.scsi;
switch ((virDomainHostdevSCSIProtocolType) scsisrc->protocol) {
case VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_NONE: {
virDomainHostdevSubsysSCSIHostPtr scsihostsrc = &scsisrc->u.host;
virStorageSourcePtr 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(virDomainObjPtr vm)
{
size_t i;
for (i = 0; i < vm->def->nhostdevs; i++) {
virDomainHostdevDefPtr 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)
{
virQEMUDriverPtr driver = conn->privateData;
virDomainObjPtr vm = NULL;
virCommandPtr cmd = NULL;
char *ret = NULL;
size_t i;
virCheckFlags(0, NULL);
if (virConnectDomainXMLToNativeEnsureACL(conn) < 0)
goto cleanup;
if (STRNEQ(format, QEMU_CONFIG_FORMAT_ARGV)) {
virReportError(VIR_ERR_INVALID_ARG,
_("unsupported config type %s"), format);
goto cleanup;
}
if (!(vm = virDomainObjNew(driver->xmlopt)))
goto cleanup;
if (!(vm->def = virDomainDefParseString(xmlData, driver->xmlopt, NULL,
VIR_DOMAIN_DEF_PARSE_INACTIVE |
VIR_DOMAIN_DEF_PARSE_ABI_UPDATE)))
goto cleanup;
/* 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++) {
virDomainNetDefPtr net = vm->def->nets[i];
virDomainNetDefPtr newNet = virDomainNetDefNew(driver->xmlopt);
if (!newNet)
goto cleanup;
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, true,
VIR_QEMU_PROCESS_START_COLD) < 0)
goto cleanup;
if (qemuConnectDomainXMLToNativePrepareHost(vm) < 0)
goto cleanup;
if (!(cmd = qemuProcessCreatePretendCmdBuild(driver, vm, NULL,
qemuCheckFips(vm), true, false)))
goto cleanup;
ret = virCommandToString(cmd, false);
cleanup:
virCommandFree(cmd);
virObjectUnref(vm);
return ret;
}
static int qemuConnectListDefinedDomains(virConnectPtr conn,
char **const names, int nnames) {
virQEMUDriverPtr driver = conn->privateData;
if (virConnectListDefinedDomainsEnsureACL(conn) < 0)
return -1;
return virDomainObjListGetInactiveNames(driver->domains, names, nnames,
virConnectListDefinedDomainsCheckACL,
conn);
}
static int qemuConnectNumOfDefinedDomains(virConnectPtr conn)
{
virQEMUDriverPtr driver = conn->privateData;
if (virConnectNumOfDefinedDomainsEnsureACL(conn) < 0)
return -1;
return virDomainObjListNumOfDomains(driver->domains, false,
virConnectNumOfDefinedDomainsCheckACL,
conn);
}
static int
qemuDomainObjStart(virConnectPtr conn,
virQEMUDriverPtr driver,
virDomainObjPtr vm,
unsigned int flags,
qemuDomainAsyncJob 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;
unsigned int start_flags = VIR_QEMU_PROCESS_START_COLD;
qemuDomainObjPrivatePtr priv = vm->privateData;
start_flags |= start_paused ? VIR_QEMU_PROCESS_START_PAUSED : 0;
start_flags |= autodestroy ? VIR_QEMU_PROCESS_START_AUTODESTROY : 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 (!managed_save)
return ret;
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, 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) {
virObjectEventPtr 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
virCheckFlags(VIR_DOMAIN_START_PAUSED |
VIR_DOMAIN_START_AUTODESTROY |
VIR_DOMAIN_START_BYPASS_CACHE |
VIR_DOMAIN_START_FORCE_BOOT, -1);
virNWFilterReadLockFilterUpdates();
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainCreateWithFlagsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuProcessBeginJob(driver, 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,
QEMU_ASYNC_JOB_START) < 0)
goto endjob;
dom->id = vm->def->id;
ret = 0;
endjob:
qemuProcessEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
virNWFilterUnlockFilterUpdates();
return ret;
}
static int
qemuDomainCreate(virDomainPtr dom)
{
return qemuDomainCreateWithFlags(dom, 0);
}
static virDomainPtr
qemuDomainDefineXMLFlags(virConnectPtr conn,
const char *xml,
unsigned int flags)
{
virQEMUDriverPtr driver = conn->privateData;
virDomainDefPtr def = NULL;
virDomainDefPtr oldDef = NULL;
virDomainObjPtr vm = NULL;
virDomainPtr dom = NULL;
virObjectEventPtr 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)))
goto cleanup;
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;
def = NULL;
vm->persistent = 1;
if (virDomainDefSave(vm->newDef ? vm->newDef : vm->def,
driver->xmlopt, cfg->configDir) < 0) {
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);
vm->persistent = 0;
qemuDomainRemoveInactiveJob(driver, vm);
}
goto cleanup;
}
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:
virDomainDefFree(oldDef);
virDomainDefFree(def);
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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
virObjectEventPtr 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(driver, vm, QEMU_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 (name == NULL)
goto endjob;
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.firmware == VIR_DOMAIN_OS_DEF_FIRMWARE_EFI) {
qemuDomainNVRAMPathFormat(cfg, vm->def, &nvram_path);
} else {
if (vm->def->os.loader)
nvram_path = g_strdup(vm->def->os.loader->nvram);
}
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(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
return ret;
}
static int
qemuDomainUndefine(virDomainPtr dom)
{
return qemuDomainUndefineFlags(dom, 0);
}
static int
qemuDomainAttachDeviceLive(virDomainObjPtr vm,
virDomainDeviceDefPtr dev,
virQEMUDriverPtr driver)
{
int ret = -1;
const char *alias = NULL;
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(driver, 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->data.chr);
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(driver, vm,
dev->data.shmem);
if (!ret) {
alias = dev->data.shmem->info.alias;
dev->data.shmem = NULL;
}
break;
case VIR_DOMAIN_DEVICE_WATCHDOG:
ret = qemuDomainAttachWatchdog(driver, vm,
dev->data.watchdog);
if (!ret) {
alias = dev->data.watchdog->info.alias;
dev->data.watchdog = NULL;
}
break;
case VIR_DOMAIN_DEVICE_INPUT:
ret = qemuDomainAttachInputDevice(driver, 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(driver, vm, dev->data.vsock);
if (ret == 0) {
alias = dev->data.vsock->info.alias;
dev->data.vsock = NULL;
}
break;
case VIR_DOMAIN_DEVICE_NONE:
case VIR_DOMAIN_DEVICE_FS:
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 */
virObjectEventPtr event;
event = virDomainEventDeviceAddedNewFromObj(vm, alias);
virObjectEventStateQueue(driver->domainEventState, event);
}
if (ret == 0)
ret = qemuDomainUpdateDeviceList(driver, vm, QEMU_ASYNC_JOB_NONE);
return ret;
}
static int
qemuDomainChangeDiskLive(virDomainObjPtr vm,
virDomainDeviceDefPtr dev,
virQEMUDriverPtr driver,
bool force)
{
virDomainDiskDefPtr disk = dev->data.disk;
virDomainDiskDefPtr orig_disk = NULL;
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;
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;
}
if (qemuDomainChangeEjectableMedia(driver, vm, orig_disk,
dev->data.disk->src, force) < 0)
return -1;
dev->data.disk->src = NULL;
}
orig_disk->startupPolicy = dev->data.disk->startupPolicy;
orig_disk->snapshot = dev->data.disk->snapshot;
return 0;
}
static int
qemuDomainUpdateDeviceLive(virDomainObjPtr vm,
virDomainDeviceDefPtr dev,
virDomainPtr dom,
bool force)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainDeviceDef oldDev = { .type = dev->type };
int ret = -1;
int idx;
switch ((virDomainDeviceType)dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
qemuDomainObjCheckDiskTaint(driver, vm, dev->data.disk, NULL);
ret = qemuDomainChangeDiskLive(vm, dev, driver, force);
break;
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;
}
ret = qemuDomainChangeGraphics(driver, vm, dev->data.graphics);
break;
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;
}
ret = qemuDomainChangeNet(driver, vm, dev);
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_MEMORY:
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));
break;
}
return ret;
}
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(virDomainDefPtr vmdef,
virDomainDeviceDefPtr dev,
virQEMUCapsPtr qemuCaps,
unsigned int parse_flags,
virDomainXMLOptionPtr xmlopt)
{
virDomainDiskDefPtr disk;
virDomainNetDefPtr net;
virDomainSoundDefPtr sound;
virDomainHostdevDefPtr hostdev;
virDomainLeaseDefPtr lease;
virDomainControllerDefPtr controller;
virDomainFSDefPtr fs;
virDomainRedirdevDefPtr redirdev;
virDomainShmemDefPtr 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;
if (virDomainDiskInsert(vmdef, disk) < 0)
return -1;
/* 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;
if (VIR_APPEND_ELEMENT(vmdef->sounds, vmdef->nsounds, sound) < 0)
return -1;
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;
}
if (virDomainLeaseInsert(vmdef, lease) < 0)
return -1;
/* 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;
}
if (virDomainControllerInsert(vmdef, controller) < 0)
return -1;
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;
}
if (VIR_APPEND_ELEMENT(vmdef->rngs, vmdef->nrngs, dev->data.rng) < 0)
return -1;
dev->data.rng = NULL;
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;
if (VIR_APPEND_ELEMENT(vmdef->redirdevs, vmdef->nredirdevs, redirdev) < 0)
return -1;
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:
if (VIR_APPEND_ELEMENT(vmdef->inputs, vmdef->ninputs, dev->data.input) < 0)
return -1;
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(virDomainDefPtr vmdef,
virDomainDeviceDefPtr dev,
virQEMUCapsPtr qemuCaps,
unsigned int parse_flags,
virDomainXMLOptionPtr xmlopt)
{
virDomainDiskDefPtr disk, det_disk;
virDomainNetDefPtr net;
virDomainSoundDefPtr sound;
virDomainHostdevDefPtr hostdev, det_hostdev;
virDomainLeaseDefPtr lease, det_lease;
virDomainControllerDefPtr cont, det_cont;
virDomainChrDefPtr chr;
virDomainFSDefPtr fs;
virDomainMemoryDefPtr 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;
}
virDomainWatchdogDefFree(vmdef->watchdog);
vmdef->watchdog = NULL;
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;
}
virDomainVsockDefFree(vmdef->vsock);
vmdef->vsock = NULL;
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(virDomainDefPtr vmdef,
virDomainDeviceDefPtr dev,
virQEMUCapsPtr qemuCaps,
unsigned int parse_flags,
virDomainXMLOptionPtr xmlopt)
{
virDomainDiskDefPtr newDisk;
virDomainGraphicsDefPtr newGraphics;
virDomainNetDefPtr net;
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_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_MEMORY:
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,
virDomainDeviceDefPtr 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(virDomainObjPtr vm,
virQEMUDriverPtr driver,
const char *xml,
unsigned int flags)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
virDomainDefPtr vmdef = NULL;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virDomainDeviceDefPtr devConf = NULL;
virDomainDeviceDef devConfSave = { 0 };
virDomainDeviceDefPtr devLive = NULL;
int ret = -1;
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)
goto cleanup;
if (!(devConf = virDomainDeviceDefParse(xml, vmdef,
driver->xmlopt, priv->qemuCaps,
parse_flags)))
goto cleanup;
/*
* 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)
goto cleanup;
if (virDomainDefCompatibleDevice(vmdef, devConf, NULL,
VIR_DOMAIN_DEVICE_ACTION_ATTACH,
false) < 0)
goto cleanup;
if (qemuDomainAttachDeviceConfig(vmdef, devConf, priv->qemuCaps,
parse_flags,
driver->xmlopt) < 0)
goto cleanup;
}
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
if (!(devLive = virDomainDeviceDefParse(xml, vm->def,
driver->xmlopt, priv->qemuCaps,
parse_flags)))
goto cleanup;
if (flags & VIR_DOMAIN_AFFECT_CONFIG)
qemuDomainAttachDeviceLiveAndConfigHomogenize(&devConfSave, devLive);
if (virDomainDeviceValidateAliasForHotplug(vm, devLive,
VIR_DOMAIN_AFFECT_LIVE) < 0)
goto cleanup;
if (virDomainDefCompatibleDevice(vm->def, devLive, NULL,
VIR_DOMAIN_DEVICE_ACTION_ATTACH,
true) < 0)
goto cleanup;
if (qemuDomainAttachDeviceLive(vm, devLive, driver) < 0)
goto cleanup;
/*
* 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.
*/
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
goto cleanup;
}
/* 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);
vmdef = NULL;
}
ret = 0;
cleanup:
virDomainDefFree(vmdef);
virDomainDeviceDefFree(devConf);
virDomainDeviceDefFree(devLive);
return ret;
}
static int
qemuDomainAttachDeviceFlags(virDomainPtr dom,
const char *xml,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
int ret = -1;
virNWFilterReadLockFilterUpdates();
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainAttachDeviceFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(driver, vm, QEMU_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(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
virNWFilterUnlockFilterUpdates();
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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
qemuDomainObjPrivatePtr priv;
virDomainDefPtr vmdef = NULL;
virDomainDeviceDefPtr dev = NULL, 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);
virNWFilterReadLockFilterUpdates();
cfg = virQEMUDriverGetConfig(driver);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
priv = vm->privateData;
if (virDomainUpdateDeviceFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(driver, vm, QEMU_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, 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_copy, dom, force)) < 0)
goto endjob;
/*
* 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.
*/
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0) {
ret = -1;
goto endjob;
}
}
/* 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);
vmdef = NULL;
}
}
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainDefFree(vmdef);
if (dev != dev_copy)
virDomainDeviceDefFree(dev_copy);
virDomainDeviceDefFree(dev);
virDomainObjEndAPI(&vm);
virNWFilterUnlockFilterUpdates();
return ret;
}
static int
qemuDomainDetachDeviceLiveAndConfig(virQEMUDriverPtr driver,
virDomainObjPtr vm,
const char *xml,
unsigned int flags)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virDomainDeviceDefPtr dev = NULL, dev_copy = NULL;
unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_SKIP_VALIDATE;
virDomainDefPtr 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, priv->qemuCaps,
parse_flags,
driver->xmlopt) < 0)
goto cleanup;
}
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
int rc;
if ((rc = qemuDomainDetachDeviceLive(vm, dev_copy, driver, false)) < 0)
goto cleanup;
if (rc == 0 && qemuDomainUpdateDeviceList(driver, vm, QEMU_ASYNC_JOB_NONE) < 0)
goto cleanup;
/*
* 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.
*/
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
goto cleanup;
}
/* 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);
vmdef = NULL;
}
ret = 0;
cleanup:
if (dev != dev_copy)
virDomainDeviceDefFree(dev_copy);
virDomainDeviceDefFree(dev);
virDomainDefFree(vmdef);
return ret;
}
static int
qemuDomainDetachDeviceAliasLiveAndConfig(virQEMUDriverPtr driver,
virDomainObjPtr vm,
const char *alias,
unsigned int flags)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virDomainDefPtr def = NULL;
virDomainDefPtr persistentDef = NULL;
virDomainDefPtr vmdef = NULL;
unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_SKIP_VALIDATE;
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;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto cleanup;
if (persistentDef) {
virDomainDeviceDef dev;
if (!(vmdef = virDomainObjCopyPersistentDef(vm, driver->xmlopt,
priv->qemuCaps)))
goto cleanup;
if (virDomainDefFindDevice(vmdef, alias, &dev, true) < 0)
goto cleanup;
if (qemuDomainDetachDeviceConfig(vmdef, &dev, priv->qemuCaps,
parse_flags, driver->xmlopt) < 0)
goto cleanup;
}
if (def) {
virDomainDeviceDef dev;
int rc;
if (virDomainDefFindDevice(def, alias, &dev, true) < 0)
goto cleanup;
if ((rc = qemuDomainDetachDeviceLive(vm, &dev, driver, true)) < 0)
goto cleanup;
if (rc == 0 && qemuDomainUpdateDeviceList(driver, vm, QEMU_ASYNC_JOB_NONE) < 0)
goto cleanup;
}
if (vmdef) {
if (virDomainDefSave(vmdef, driver->xmlopt, cfg->configDir) < 0)
goto cleanup;
virDomainObjAssignDef(vm, vmdef, false, NULL);
vmdef = NULL;
}
ret = 0;
cleanup:
virDomainDefFree(vmdef);
return ret;
}
static int
qemuDomainDetachDeviceFlags(virDomainPtr dom,
const char *xml,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
int ret = -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainDetachDeviceFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(driver, vm, QEMU_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(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainDetachDeviceAlias(virDomainPtr dom,
const char *alias,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
int ret = -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainDetachDeviceAliasEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(driver, vm, QEMU_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(driver, 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)
{
virDomainObjPtr 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr 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(driver, vm, QEMU_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 (virFileMakePath(cfg->autostartDir) < 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(driver, vm);
}
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static char *qemuDomainGetSchedulerType(virDomainPtr dom,
int *nparams)
{
char *ret = NULL;
virDomainObjPtr vm = NULL;
qemuDomainObjPrivatePtr priv;
virQEMUDriverPtr 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
virDomainDefPtr def;
virDomainDefPtr persistentDef;
int ret = -1;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
qemuDomainObjPrivatePtr 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(driver, vm, QEMU_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);
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
goto endjob;
}
if (ret < 0)
goto endjob;
if (persistentDef) {
ret = virDomainDriverSetupPersistentDefBlkioParams(persistentDef,
params,
nparams);
if (virDomainDefSave(persistentDef, driver->xmlopt, cfg->configDir) < 0)
ret = -1;
}
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetBlkioParameters(virDomainPtr dom,
virTypedParameterPtr params,
int *nparams,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
virDomainDefPtr def = NULL;
virDomainDefPtr persistentDef = NULL;
int maxparams = QEMU_NB_BLKIO_PARAM;
unsigned int val;
int ret = -1;
qemuDomainObjPrivatePtr 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainDefPtr def = NULL;
virDomainDefPtr persistentDef = NULL;
virDomainObjPtr vm = NULL;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
int ret = -1;
qemuDomainObjPrivatePtr 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(driver, vm, QEMU_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 &&
virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
goto endjob;
if (persistentDef &&
virDomainDefSave(persistentDef, driver->xmlopt, cfg->configDir) < 0)
goto endjob;
/* QEMU and LXC implementations are identical */
ret = 0;
endjob:
qemuDomainObjEndJob(driver, 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
virDomainDefPtr persistentDef = NULL;
int ret = -1;
qemuDomainObjPrivatePtr 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(virDomainObjPtr vm,
virBitmapPtr nodeset)
{
g_autoptr(virCgroup) cgroup_thread = NULL;
qemuDomainObjPrivatePtr 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_STRICT) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("change of nodeset for running domain "
"requires strict 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;
virDomainVcpuDefPtr 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;
}
/* set nodeset for root cgroup */
if (virCgroupSetCpusetMems(priv->cgroup, nodeset_str) < 0)
return -1;
return 0;
}
static int
qemuDomainSetNumaParameters(virDomainPtr dom,
virTypedParameterPtr params,
int nparams,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
size_t i;
virDomainDefPtr def;
virDomainDefPtr persistentDef;
virDomainObjPtr vm = NULL;
int ret = -1;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
qemuDomainObjPrivatePtr priv;
virBitmapPtr 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(driver, vm, QEMU_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 (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;
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
goto endjob;
}
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(driver, vm);
cleanup:
virBitmapFree(nodeset);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetNumaParameters(virDomainPtr dom,
virTypedParameterPtr params,
int *nparams,
unsigned int flags)
{
size_t i;
virDomainObjPtr vm = NULL;
virDomainNumatuneMemMode tmpmode = VIR_DOMAIN_NUMATUNE_MEM_STRICT;
qemuDomainObjPrivatePtr priv;
g_autofree char *nodeset = NULL;
int ret = -1;
virDomainDefPtr def = NULL;
bool live = false;
virBitmapPtr 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;
/* coverity[dead_error_begin] */
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(virCgroupPtr cgroup, unsigned long long period,
long long quota)
{
if (period == 0 && quota == 0)
return 0;
if (qemuSetupCgroupVcpuBW(cgroup, period, quota) < 0)
return -1;
return 0;
}
static int
qemuDomainSetPerfEvents(virDomainPtr dom,
virTypedParameterPtr params,
int nparams,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
size_t i;
virDomainObjPtr vm = NULL;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
qemuDomainObjPrivatePtr priv;
virDomainDefPtr def;
virDomainDefPtr 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(driver, vm, QEMU_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;
}
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
goto endjob;
}
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(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetPerfEvents(virDomainPtr dom,
virTypedParameterPtr *params,
int *nparams,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
qemuDomainObjPrivatePtr priv;
virDomainDefPtr 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(driver, vm, QEMU_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;
}
*params = par;
*nparams = npar;
par = NULL;
npar = 0;
ret = 0;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
virTypedParamsFree(par, npar);
return ret;
}
static int
qemuSetVcpusBWLive(virDomainObjPtr vm, virCgroupPtr cgroup,
unsigned long long period, long long quota)
{
size_t i;
if (period == 0 && quota == 0)
return 0;
if (!qemuDomainHasVcpuPids(vm))
return 0;
for (i = 0; i < virDomainDefGetVcpusMax(vm->def); i++) {
g_autoptr(virCgroup) cgroup_vcpu = NULL;
virDomainVcpuDefPtr vcpu = virDomainDefGetVcpu(vm->def, i);
if (!vcpu->online)
return -1;
if (virCgroupNewThread(cgroup, VIR_CGROUP_THREAD_VCPU, i,
false, &cgroup_vcpu) < 0)
return -1;
if (qemuSetupCgroupVcpuBW(cgroup_vcpu, period, quota) < 0)
return -1;
}
return 0;
}
static int
qemuSetEmulatorBandwidthLive(virCgroupPtr cgroup,
unsigned long long period,
long long quota)
{
g_autoptr(virCgroup) cgroup_emulator = NULL;
if (period == 0 && quota == 0)
return 0;
if (virCgroupNewThread(cgroup, VIR_CGROUP_THREAD_EMULATOR, 0,
false, &cgroup_emulator) < 0)
return -1;
if (qemuSetupCgroupVcpuBW(cgroup_emulator, period, quota) < 0)
return -1;
return 0;
}
static int
qemuSetIOThreadsBWLive(virDomainObjPtr vm, virCgroupPtr cgroup,
unsigned long long period, long long quota)
{
size_t i;
if (period == 0 && quota == 0)
return 0;
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 (qemuSetupCgroupVcpuBW(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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
size_t i;
virDomainObjPtr vm = NULL;
virDomainDefPtr def = NULL;
virDomainDefPtr persistentDef = NULL;
virDomainDefPtr persistentDefCopy = NULL;
unsigned long long value_ul;
long long value_l;
int ret = -1;
int rc;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
qemuDomainObjPrivatePtr priv;
virObjectEventPtr 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(driver, vm, QEMU_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) {
unsigned long long val;
if (virCgroupSetupCpuShares(priv->cgroup, value_ul, &val) < 0)
goto endjob;
def->cputune.shares = val;
def->cputune.sharesSpecified = true;
if (virTypedParamsAddULLong(&eventParams, &eventNparams,
&eventMaxNparams,
VIR_DOMAIN_TUNABLE_CPU_CPU_SHARES,
val) < 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,
QEMU_SCHED_MIN_PERIOD, QEMU_SCHED_MAX_PERIOD);
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,
QEMU_SCHED_MIN_QUOTA, QEMU_SCHED_MAX_QUOTA);
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,
QEMU_SCHED_MIN_PERIOD, QEMU_SCHED_MAX_PERIOD);
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,
QEMU_SCHED_MIN_QUOTA, QEMU_SCHED_MAX_QUOTA);
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,
QEMU_SCHED_MIN_PERIOD, QEMU_SCHED_MAX_PERIOD);
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,
QEMU_SCHED_MIN_QUOTA, QEMU_SCHED_MAX_QUOTA);
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,
QEMU_SCHED_MIN_PERIOD, QEMU_SCHED_MAX_PERIOD);
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,
QEMU_SCHED_MIN_QUOTA, QEMU_SCHED_MAX_QUOTA);
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;
}
}
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
goto endjob;
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);
persistentDefCopy = NULL;
}
ret = 0;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainDefFree(persistentDefCopy);
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(virCgroupPtr cgroup, unsigned long long *period,
long long *quota)
{
return virCgroupGetCpuPeriodQuota(cgroup, period, quota);
}
static int
qemuGetVcpusBWLive(virDomainObjPtr vm,
unsigned long long *period, long long *quota)
{
g_autoptr(virCgroup) cgroup_vcpu = NULL;
qemuDomainObjPrivatePtr priv = NULL;
int rc;
priv = vm->privateData;
if (!qemuDomainHasVcpuPids(vm)) {
/* We do not create sub dir for each vcpu */
rc = qemuGetVcpuBWLive(priv->cgroup, period, quota);
if (rc < 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;
rc = qemuGetVcpuBWLive(cgroup_vcpu, period, quota);
if (rc < 0)
return -1;
return 0;
}
static int
qemuGetEmulatorBandwidthLive(virCgroupPtr 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(virDomainObjPtr vm,
unsigned long long *period, long long *quota)
{
g_autoptr(virCgroup) cgroup_iothread = NULL;
qemuDomainObjPrivatePtr priv = NULL;
int rc;
priv = vm->privateData;
if (!vm->def->niothreadids) {
/* We do not create sub dir for each iothread */
if ((rc = 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;
rc = qemuGetVcpuBWLive(cgroup_iothread, period, quota);
if (rc < 0)
return -1;
return 0;
}
static int
qemuGetGlobalBWLive(virCgroupPtr 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
virDomainCputune data = {0};
int ret = -1;
bool cpu_bw_status = true;
virDomainDefPtr persistentDef;
virDomainDefPtr def;
qemuDomainObjPrivatePtr 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
qemuDomainObjPrivatePtr priv;
int ret = -1;
g_autofree char *device = NULL;
const char *nodename = NULL;
virDomainDiskDefPtr 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(driver, vm, QEMU_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;
}
/* 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 (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV) &&
!qemuDiskBusIsSD(disk->bus)) {
if (virStorageSourceIsEmpty(disk->src) || disk->src->readonly) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("can't resize empty or readonly disk '%s'"),
disk->dst);
goto endjob;
}
nodename = disk->src->nodeformat;
} else {
if (!(device = qemuAliasDiskDriveFromDisk(disk)))
goto endjob;
}
qemuDomainObjEnterMonitor(driver, vm);
if (qemuMonitorBlockResize(priv->mon, device, nodename, size) < 0) {
ignore_value(qemuDomainObjExitMonitor(driver, vm));
goto endjob;
}
if (qemuDomainObjExitMonitor(driver, vm) < 0)
goto endjob;
ret = 0;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static void
qemuDomainBlockStatsGatherTotals(qemuBlockStatsPtr data,
qemuBlockStatsPtr 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(virQEMUDriverPtr driver,
virDomainObjPtr vm,
const char *path,
bool capacity,
qemuBlockStatsPtr *retstats)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
bool blockdev = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV);
virDomainDiskDefPtr disk = NULL;
virHashTablePtr blockstats = NULL;
qemuBlockStatsPtr stats;
size_t i;
int nstats;
int rc = 0;
const char *entryname = NULL;
int ret = -1;
if (*path) {
if (!(disk = virDomainDiskByName(vm->def, path, false))) {
virReportError(VIR_ERR_INVALID_ARG, _("invalid path: %s"), path);
goto cleanup;
}
if (blockdev && QEMU_DOMAIN_DISK_PRIVATE(disk)->qomName) {
entryname = QEMU_DOMAIN_DISK_PRIVATE(disk)->qomName;
} else {
if (!disk->info.alias) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing disk device alias name for %s"), disk->dst);
goto cleanup;
}
entryname = disk->info.alias;
}
}
qemuDomainObjEnterMonitor(driver, vm);
nstats = qemuMonitorGetAllBlockStatsInfo(priv->mon, &blockstats, false);
if (capacity && nstats >= 0) {
if (blockdev)
rc = qemuMonitorBlockStatsUpdateCapacityBlockdev(priv->mon, blockstats);
else
rc = qemuMonitorBlockStatsUpdateCapacity(priv->mon, blockstats, false);
}
if (qemuDomainObjExitMonitor(driver, vm) < 0 || nstats < 0 || rc < 0)
goto cleanup;
*retstats = g_new0(qemuBlockStats, 1);
if (entryname) {
if (!(stats = virHashLookup(blockstats, entryname))) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot find statistics for device '%s'"), entryname);
goto cleanup;
}
**retstats = *stats;
if (blockdev) {
/* capacity are reported only per node-name so we need to transfer them */
qemuBlockStatsPtr capstats;
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;
if (blockdev && 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);
goto cleanup;
}
qemuDomainBlockStatsGatherTotals(stats, *retstats);
}
}
ret = nstats;
cleanup:
virHashFree(blockstats);
return ret;
}
static int
qemuDomainBlockStats(virDomainPtr dom,
const char *path,
virDomainBlockStatsPtr stats)
{
virQEMUDriverPtr driver = dom->conn->privateData;
qemuBlockStatsPtr blockstats = NULL;
int ret = -1;
virDomainObjPtr vm;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainBlockStatsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (qemuDomainBlocksStatsGather(driver, 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(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
VIR_FREE(blockstats);
return ret;
}
static int
qemuDomainBlockStatsFlags(virDomainPtr dom,
const char *path,
virTypedParameterPtr params,
int *nparams,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
qemuBlockStatsPtr 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(driver, vm, QEMU_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if ((nstats = qemuDomainBlocksStatsGather(driver, 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(driver, vm);
cleanup:
VIR_FREE(blockstats);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainInterfaceStats(virDomainPtr dom,
const char *device,
virDomainInterfaceStatsPtr stats)
{
virDomainObjPtr vm;
virDomainNetDefPtr 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) {
virDomainHostdevDefPtr hostdev = virDomainNetGetActualHostdev(net);
virPCIDeviceAddressPtr 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
size_t i;
virDomainObjPtr vm = NULL;
virDomainDefPtr def;
virDomainDefPtr persistentDef;
int ret = -1;
virDomainNetDefPtr net = NULL, persistentNet = NULL;
virNetDevBandwidthPtr bandwidth = NULL, newBandwidth = NULL;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
bool inboundSpecified = false, outboundSpecified = false;
int actualType;
bool qosSupported = true;
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(driver, vm, QEMU_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);
}
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 (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;
}
virNetDevBandwidthFree(net->bandwidth);
if (newBandwidth->in || newBandwidth->out) {
net->bandwidth = newBandwidth;
newBandwidth = NULL;
} 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;
}
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
goto endjob;
}
if (persistentNet) {
if (!persistentNet->bandwidth) {
persistentNet->bandwidth = bandwidth;
bandwidth = NULL;
} 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(driver, vm);
cleanup:
virNetDevBandwidthFree(bandwidth);
virNetDevBandwidthFree(newBandwidth);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetInterfaceParameters(virDomainPtr dom,
const char *device,
virTypedParameterPtr params,
int *nparams,
unsigned int flags)
{
size_t i;
virDomainObjPtr vm = NULL;
virDomainDefPtr def = NULL;
virDomainNetDefPtr 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;
/* coverity[dead_error_begin] */
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 QEMU_JOB_QUERY is started by a caller */
static int
qemuDomainMemoryStatsInternal(virQEMUDriverPtr driver,
virDomainObjPtr vm,
virDomainMemoryStatPtr stats,
unsigned int nr_stats)
{
int ret = -1;
long rss;
if (virDomainObjCheckActive(vm) < 0)
return -1;
if (virDomainDefHasMemballoon(vm->def)) {
qemuDomainObjEnterMonitor(driver, vm);
ret = qemuMonitorGetMemoryStats(qemuDomainGetMonitor(vm),
vm->def->memballoon, stats, nr_stats);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
if (ret < 0 || ret >= nr_stats)
return ret;
} else {
ret = 0;
}
if (qemuGetProcessInfo(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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainMemoryStatsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY) < 0)
goto cleanup;
ret = qemuDomainMemoryStatsInternal(driver, vm, stats, nr_stats);
qemuDomainObjEndJob(driver, 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainDiskDefPtr disk = NULL;
virDomainObjPtr 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 (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 = virStorageFileRead(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)
virStorageFileDeinit(disk->src);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainMemoryPeek(virDomainPtr dom,
unsigned long long offset, size_t size,
void *buffer,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
g_autofree char *tmp = NULL;
int fd = -1, ret = -1;
qemuDomainObjPrivatePtr priv;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virCheckFlags(VIR_MEMORY_VIRTUAL | VIR_MEMORY_PHYSICAL, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
cfg = virQEMUDriverGetConfig(driver);
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(driver, vm, QEMU_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!(tmp = g_strdup_printf("%s/qemu.mem.XXXXXX", cfg->cacheDir)))
goto endjob;
/* 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);
priv = vm->privateData;
qemuDomainObjEnterMonitor(driver, vm);
if (flags == VIR_MEMORY_VIRTUAL) {
if (qemuMonitorSaveVirtualMemory(priv->mon, offset, size, tmp) < 0) {
ignore_value(qemuDomainObjExitMonitor(driver, vm));
goto endjob;
}
} else {
if (qemuMonitorSavePhysicalMemory(priv->mon, offset, size, tmp) < 0) {
ignore_value(qemuDomainObjExitMonitor(driver, vm));
goto endjob;
}
}
if (qemuDomainObjExitMonitor(driver, vm) < 0)
goto endjob;
/* 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(driver, 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(virQEMUDriverPtr driver,
virQEMUDriverConfigPtr cfg,
virDomainObjPtr vm,
virStorageSourcePtr src,
int *ret_fd,
struct stat *ret_sb,
bool skipInaccessible)
{
if (virStorageSourceIsLocalStorage(src)) {
if (skipInaccessible && !virFileExists(src->path))
return 0;
if ((*ret_fd = qemuDomainOpenFile(driver, vm, 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 && virStorageFileSupportsBackingChainTraversal(src) <= 0)
return 0;
if (virStorageFileInitAs(src, cfg->user, cfg->group) < 0)
return -1;
if (virStorageFileStat(src, ret_sb) < 0) {
virStorageFileDeinit(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(virStorageSourcePtr src,
int *fd)
{
if (virStorageSourceIsLocalStorage(src))
VIR_FORCE_CLOSE(*fd);
else
virStorageFileDeinit(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(virQEMUDriverPtr driver,
virQEMUDriverConfigPtr cfg,
virDomainObjPtr vm,
virStorageSourcePtr 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(virQEMUDriverPtr driver,
virQEMUDriverConfigPtr cfg,
virDomainObjPtr vm,
virStorageSourcePtr 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 = virStorageFileRead(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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
virDomainDiskDefPtr disk;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
qemuBlockStatsPtr 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(driver, vm, QEMU_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 (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(driver, 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(driver, vm);
cleanup:
VIR_FREE(entry);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuConnectDomainEventRegister(virConnectPtr conn,
virConnectDomainEventCallback callback,
void *opaque,
virFreeCallback freecb)
{
virQEMUDriverPtr 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)
{
virQEMUDriverPtr 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)
{
virQEMUDriverPtr 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)
{
virQEMUDriverPtr 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)
{
virQEMUDriverPtr driver = dconn->privateData;
virDomainDefPtr def = NULL;
g_autofree char *origname = NULL;
qemuMigrationParamsPtr migParams = NULL;
int ret = -1;
virCheckFlags(QEMU_MIGRATION_FLAGS, -1);
if (!(flags & VIR_MIGRATE_TUNNELLED)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("PrepareTunnel called but no TUNNELLED flag set"));
goto cleanup;
}
if (!(migParams = qemuMigrationParamsFromFlags(NULL, 0, flags,
QEMU_MIGRATION_DESTINATION)))
goto cleanup;
if (virLockManagerPluginUsesState(driver->lockManager)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Cannot use migrate v2 protocol with lock manager %s"),
virLockManagerPluginGetName(driver->lockManager));
goto cleanup;
}
if (!(def = qemuMigrationAnyPrepareDef(driver, NULL, dom_xml, dname, &origname)))
goto cleanup;
if (virDomainMigratePrepareTunnelEnsureACL(dconn, def) < 0)
goto cleanup;
ret = qemuMigrationDstPrepareTunnel(driver, dconn,
NULL, 0, NULL, NULL, /* No cookies in v2 */
st, &def, origname, migParams, flags);
cleanup:
qemuMigrationParamsFree(migParams);
virDomainDefFree(def);
return ret;
}
/* 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)
{
virQEMUDriverPtr driver = dconn->privateData;
virDomainDefPtr def = NULL;
g_autofree char *origname = NULL;
qemuMigrationParamsPtr migParams = NULL;
int ret = -1;
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"));
goto cleanup;
}
if (!(migParams = qemuMigrationParamsFromFlags(NULL, 0, flags,
QEMU_MIGRATION_DESTINATION)))
goto cleanup;
if (virLockManagerPluginUsesState(driver->lockManager)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Cannot use migrate v2 protocol with lock manager %s"),
virLockManagerPluginGetName(driver->lockManager));
goto cleanup;
}
if (!(def = qemuMigrationAnyPrepareDef(driver, NULL, dom_xml, dname, &origname)))
goto cleanup;
if (virDomainMigratePrepare2EnsureACL(dconn, def) < 0)
goto cleanup;
/* Do not use cookies in v2 protocol, since the cookie
* length was not sufficiently large, causing failures
* migrating between old & new libvirtd
*/
ret = qemuMigrationDstPrepareDirect(driver, dconn,
NULL, 0, NULL, NULL, /* No cookies */
uri_in, uri_out,
&def, origname, NULL, 0, NULL, 0, NULL,
migParams, flags);
cleanup:
qemuMigrationParamsFree(migParams);
virDomainDefFree(def);
return ret;
}
/* 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
int ret = -1;
const char *dconnuri = NULL;
qemuMigrationParamsPtr 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);
qemuMigrationParamsFree(migParams);
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)
{
virQEMUDriverPtr driver = dconn->privateData;
virDomainObjPtr 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)
{
virDomainObjPtr 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;
virDomainObjPtr 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)
{
virQEMUDriverPtr 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)
{
virQEMUDriverPtr 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 (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)
{
virQEMUDriverPtr driver = dconn->privateData;
virDomainDefPtr def = NULL;
g_autofree char *origname = NULL;
qemuMigrationParamsPtr migParams = NULL;
int ret = -1;
virCheckFlags(QEMU_MIGRATION_FLAGS, -1);
if (!(flags & VIR_MIGRATE_TUNNELLED)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("PrepareTunnel called but no TUNNELLED flag set"));
goto cleanup;
}
if (!(migParams = qemuMigrationParamsFromFlags(NULL, 0, flags,
QEMU_MIGRATION_DESTINATION)))
goto cleanup;
if (!(def = qemuMigrationAnyPrepareDef(driver, NULL, dom_xml, dname, &origname)))
goto cleanup;
if (virDomainMigratePrepareTunnel3EnsureACL(dconn, def) < 0)
goto cleanup;
ret = qemuMigrationDstPrepareTunnel(driver, dconn,
cookiein, cookieinlen,
cookieout, cookieoutlen,
st, &def, origname, migParams, flags);
cleanup:
qemuMigrationParamsFree(migParams);
virDomainDefFree(def);
return ret;
}
static int
qemuDomainMigratePrepareTunnel3Params(virConnectPtr dconn,
virStreamPtr st,
virTypedParameterPtr params,
int nparams,
const char *cookiein,
int cookieinlen,
char **cookieout,
int *cookieoutlen,
unsigned int flags)
{
virQEMUDriverPtr driver = dconn->privateData;
virDomainDefPtr def = NULL;
const char *dom_xml = NULL;
const char *dname = NULL;
g_autofree char *origname = NULL;
qemuMigrationParamsPtr migParams = NULL;
int ret = -1;
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"));
goto cleanup;
}
if (!(migParams = qemuMigrationParamsFromFlags(params, nparams, flags,
QEMU_MIGRATION_DESTINATION)))
goto cleanup;
if (!(def = qemuMigrationAnyPrepareDef(driver, NULL, dom_xml, dname, &origname)))
goto cleanup;
if (virDomainMigratePrepareTunnel3ParamsEnsureACL(dconn, def) < 0)
goto cleanup;
ret = qemuMigrationDstPrepareTunnel(driver, dconn,
cookiein, cookieinlen,
cookieout, cookieoutlen,
st, &def, origname, migParams, flags);
cleanup:
qemuMigrationParamsFree(migParams);
virDomainDefFree(def);
return ret;
}
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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr 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 (!(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)
{
virQEMUDriverPtr driver = dconn->privateData;
virDomainObjPtr 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)
{
virQEMUDriverPtr driver = dconn->privateData;
virDomainObjPtr 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)
{
virDomainObjPtr 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)
{
virDomainObjPtr 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
qemuNodeDeviceGetPCIInfo(virNodeDeviceDefPtr def,
unsigned *domain,
unsigned *bus,
unsigned *slot,
unsigned *function)
{
virNodeDevCapsDefPtr cap;
cap = def->caps;
while (cap) {
if (cap->data.type == VIR_NODE_DEV_CAP_PCI_DEV) {
*domain = cap->data.pci_dev.domain;
*bus = cap->data.pci_dev.bus;
*slot = cap->data.pci_dev.slot;
*function = cap->data.pci_dev.function;
break;
}
cap = cap->next;
}
if (!cap) {
virReportError(VIR_ERR_INVALID_ARG,
_("device %s is not a PCI device"), def->name);
return -1;
}
return 0;
}
static int
qemuNodeDeviceDetachFlags(virNodeDevicePtr dev,
const char *driverName,
unsigned int flags)
{
virQEMUDriverPtr driver = dev->conn->privateData;
virPCIDevicePtr pci = NULL;
unsigned domain = 0, bus = 0, slot = 0, function = 0;
int ret = -1;
virNodeDeviceDefPtr def = NULL;
g_autofree char *xml = NULL;
bool vfio = qemuHostdevHostSupportsPassthroughVFIO();
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
virConnectPtr nodeconn = NULL;
virNodeDevicePtr nodedev = NULL;
virCheckFlags(0, -1);
if (!(nodeconn = virGetConnectNodeDev()))
goto cleanup;
/* 'dev' is associated with the QEMU virConnectPtr,
* so for split daemons, we need to get a copy that
* is associated with the virnodedevd daemon.
*/
if (!(nodedev = virNodeDeviceLookupByName(nodeconn,
virNodeDeviceGetName(dev))))
goto cleanup;
xml = virNodeDeviceGetXMLDesc(nodedev, 0);
if (!xml)
goto cleanup;
def = virNodeDeviceDefParseString(xml, EXISTING_DEVICE, NULL);
if (!def)
goto cleanup;
/* ACL check must happen against original 'dev',
* not the new 'nodedev' we acquired */
if (virNodeDeviceDetachFlagsEnsureACL(dev->conn, def) < 0)
goto cleanup;
if (qemuNodeDeviceGetPCIInfo(def, &domain, &bus, &slot, &function) < 0)
goto cleanup;
pci = virPCIDeviceNew(domain, bus, slot, function);
if (!pci)
goto cleanup;
if (!driverName)
driverName = "vfio";
if (STREQ(driverName, "vfio")) {
if (!vfio) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("VFIO device assignment is currently not "
"supported on this system"));
goto cleanup;
}
virPCIDeviceSetStubDriver(pci, VIR_PCI_STUB_DRIVER_VFIO);
} else if (STREQ(driverName, "kvm")) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("KVM device assignment is no longer "
"supported on this system"));
goto cleanup;
} else {
virReportError(VIR_ERR_INVALID_ARG,
_("unknown driver name '%s'"), driverName);
goto cleanup;
}
ret = virHostdevPCINodeDeviceDetach(hostdev_mgr, pci);
cleanup:
virPCIDeviceFree(pci);
virNodeDeviceDefFree(def);
virObjectUnref(nodedev);
virObjectUnref(nodeconn);
return ret;
}
static int
qemuNodeDeviceDettach(virNodeDevicePtr dev)
{
return qemuNodeDeviceDetachFlags(dev, NULL, 0);
}
static int
qemuNodeDeviceReAttach(virNodeDevicePtr dev)
{
virQEMUDriverPtr driver = dev->conn->privateData;
virPCIDevicePtr pci = NULL;
unsigned domain = 0, bus = 0, slot = 0, function = 0;
int ret = -1;
virNodeDeviceDefPtr def = NULL;
g_autofree char *xml = NULL;
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
virConnectPtr nodeconn = NULL;
virNodeDevicePtr nodedev = NULL;
if (!(nodeconn = virGetConnectNodeDev()))
goto cleanup;
/* 'dev' is associated with the QEMU virConnectPtr,
* so for split daemons, we need to get a copy that
* is associated with the virnodedevd daemon.
*/
if (!(nodedev = virNodeDeviceLookupByName(
nodeconn, virNodeDeviceGetName(dev))))
goto cleanup;
xml = virNodeDeviceGetXMLDesc(nodedev, 0);
if (!xml)
goto cleanup;
def = virNodeDeviceDefParseString(xml, EXISTING_DEVICE, NULL);
if (!def)
goto cleanup;
/* ACL check must happen against original 'dev',
* not the new 'nodedev' we acquired */
if (virNodeDeviceReAttachEnsureACL(dev->conn, def) < 0)
goto cleanup;
if (qemuNodeDeviceGetPCIInfo(def, &domain, &bus, &slot, &function) < 0)
goto cleanup;
pci = virPCIDeviceNew(domain, bus, slot, function);
if (!pci)
goto cleanup;
ret = virHostdevPCINodeDeviceReAttach(hostdev_mgr, pci);
virPCIDeviceFree(pci);
cleanup:
virNodeDeviceDefFree(def);
virObjectUnref(nodedev);
virObjectUnref(nodeconn);
return ret;
}
static int
qemuNodeDeviceReset(virNodeDevicePtr dev)
{
virQEMUDriverPtr driver = dev->conn->privateData;
virPCIDevicePtr pci;
unsigned domain = 0, bus = 0, slot = 0, function = 0;
int ret = -1;
virNodeDeviceDefPtr def = NULL;
g_autofree char *xml = NULL;
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
virConnectPtr nodeconn = NULL;
virNodeDevicePtr nodedev = NULL;
if (!(nodeconn = virGetConnectNodeDev()))
goto cleanup;
/* 'dev' is associated with the QEMU virConnectPtr,
* so for split daemons, we need to get a copy that
* is associated with the virnodedevd daemon.
*/
if (!(nodedev = virNodeDeviceLookupByName(
nodeconn, virNodeDeviceGetName(dev))))
goto cleanup;
xml = virNodeDeviceGetXMLDesc(nodedev, 0);
if (!xml)
goto cleanup;
def = virNodeDeviceDefParseString(xml, EXISTING_DEVICE, NULL);
if (!def)
goto cleanup;
/* ACL check must happen against original 'dev',
* not the new 'nodedev' we acquired */
if (virNodeDeviceResetEnsureACL(dev->conn, def) < 0)
goto cleanup;
if (qemuNodeDeviceGetPCIInfo(def, &domain, &bus, &slot, &function) < 0)
goto cleanup;
pci = virPCIDeviceNew(domain, bus, slot, function);
if (!pci)
goto cleanup;
ret = virHostdevPCINodeDeviceReset(hostdev_mgr, pci);
virPCIDeviceFree(pci);
cleanup:
virNodeDeviceDefFree(def);
virObjectUnref(nodedev);
virObjectUnref(nodeconn);
return ret;
}
static int
qemuConnectCompareCPU(virConnectPtr conn,
const char *xmlDesc,
unsigned int flags)
{
virQEMUDriverPtr 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(virQEMUCapsPtr qemuCaps,
const char *libDir,
uid_t runUid,
gid_t runGid,
virCPUDefPtr cpu_a,
virCPUDefPtr 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;
virQEMUDriverPtr driver = conn->privateData;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
g_autoptr(virQEMUCaps) qemuCaps = NULL;
bool failIncompatible;
bool validateXML;
virCPUDefPtr hvCPU;
virCPUDefPtr 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 {
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)
{
virCPUDefPtr *cpus = NULL;
virCPUDefPtr baseline = NULL;
virCPUDefPtr 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(virCPUDefPtr dst,
qemuMonitorCPUModelInfoPtr *src)
{
qemuMonitorCPUModelInfoPtr info;
size_t i;
int ret = -1;
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)
goto cleanup;
}
ret = 0;
cleanup:
qemuMonitorCPUModelInfoFree(info);
return ret;
}
static virCPUDefPtr
qemuConnectCPUModelBaseline(virQEMUCapsPtr qemuCaps,
const char *libDir,
uid_t runUid,
gid_t runGid,
bool expand_features,
virCPUDefPtr *cpus,
int ncpus)
{
g_autoptr(qemuProcessQMP) proc = NULL;
g_autoptr(virCPUDef) baseline = NULL;
qemuMonitorCPUModelInfoPtr result = NULL;
size_t i;
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))
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) {
if (qemuMonitorGetCPUModelExpansion(proc->mon,
QEMU_MONITOR_CPU_MODEL_EXPANSION_FULL,
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)
{
virQEMUDriverPtr driver = conn->privateData;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
virCPUDefPtr *cpus = NULL;
g_autoptr(virQEMUCaps) qemuCaps = NULL;
virArch arch;
virDomainVirtType virttype;
g_autoptr(virDomainCapsCPUModels) cpuModels = NULL;
bool migratable;
virCPUDefPtr cpu = NULL;
char *cpustr = NULL;
char **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)) {
bool expand_features = (flags & VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES);
if (!(cpu = qemuConnectCPUModelBaseline(qemuCaps, cfg->libDir,
cfg->user, cfg->group,
expand_features, cpus, ncpus)))
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);
g_strfreev(features);
return cpustr;
}
static int
qemuDomainGetJobInfoMigrationStats(virQEMUDriverPtr driver,
virDomainObjPtr vm,
qemuDomainJobInfoPtr jobInfo)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
bool events = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_EVENT);
if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE ||
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_MIGRATING ||
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_QEMU_COMPLETED ||
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_POSTCOPY) {
if (events &&
jobInfo->status != QEMU_DOMAIN_JOB_STATUS_ACTIVE &&
qemuMigrationAnyFetchStats(driver, vm, QEMU_ASYNC_JOB_NONE,
jobInfo, NULL) < 0)
return -1;
if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE &&
jobInfo->statsType == QEMU_DOMAIN_JOB_STATS_TYPE_MIGRATION &&
qemuMigrationSrcFetchMirrorStats(driver, vm, QEMU_ASYNC_JOB_NONE,
jobInfo) < 0)
return -1;
if (qemuDomainJobInfoUpdateTime(jobInfo) < 0)
return -1;
}
return 0;
}
static int
qemuDomainGetJobInfoDumpStats(virQEMUDriverPtr driver,
virDomainObjPtr vm,
qemuDomainJobInfoPtr jobInfo)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
qemuMonitorDumpStats stats = { 0 };
int rc;
if (qemuDomainObjEnterMonitorAsync(driver, vm, QEMU_ASYNC_JOB_NONE) < 0)
return -1;
rc = qemuMonitorQueryDump(priv->mon, &stats);
if (qemuDomainObjExitMonitor(driver, vm) < 0 || rc < 0)
return -1;
jobInfo->stats.dump = stats;
if (qemuDomainJobInfoUpdateTime(jobInfo) < 0)
return -1;
switch (jobInfo->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"),
jobInfo->stats.dump.status);
return -1;
break;
case QEMU_MONITOR_DUMP_STATUS_ACTIVE:
jobInfo->status = QEMU_DOMAIN_JOB_STATUS_ACTIVE;
VIR_DEBUG("dump active, bytes written='%llu' remaining='%llu'",
jobInfo->stats.dump.completed,
jobInfo->stats.dump.total -
jobInfo->stats.dump.completed);
break;
case QEMU_MONITOR_DUMP_STATUS_COMPLETED:
jobInfo->status = QEMU_DOMAIN_JOB_STATUS_COMPLETED;
VIR_DEBUG("dump completed, bytes written='%llu'",
jobInfo->stats.dump.completed);
break;
}
return 0;
}
static int
qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
virDomainObjPtr vm,
bool completed,
qemuDomainJobInfoPtr *jobInfo)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
int ret = -1;
*jobInfo = NULL;
if (completed) {
if (priv->job.completed && !priv->job.current)
*jobInfo = qemuDomainJobInfoCopy(priv->job.completed);
return 0;
}
if (priv->job.asyncJob == QEMU_ASYNC_JOB_MIGRATION_IN) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("migration statistics are available only on "
"the source host"));
return -1;
}
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY) < 0)
return -1;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
if (!priv->job.current) {
ret = 0;
goto cleanup;
}
*jobInfo = qemuDomainJobInfoCopy(priv->job.current);
switch ((*jobInfo)->statsType) {
case QEMU_DOMAIN_JOB_STATS_TYPE_MIGRATION:
case QEMU_DOMAIN_JOB_STATS_TYPE_SAVEDUMP:
if (qemuDomainGetJobInfoMigrationStats(driver, vm, *jobInfo) < 0)
goto cleanup;
break;
case QEMU_DOMAIN_JOB_STATS_TYPE_MEMDUMP:
if (qemuDomainGetJobInfoDumpStats(driver, vm, *jobInfo) < 0)
goto cleanup;
break;
case QEMU_DOMAIN_JOB_STATS_TYPE_BACKUP:
if (qemuBackupGetJobInfoStats(driver, vm, *jobInfo) < 0)
goto cleanup;
break;
case QEMU_DOMAIN_JOB_STATS_TYPE_NONE:
break;
}
ret = 0;
cleanup:
qemuDomainObjEndJob(driver, vm);
return ret;
}
static int
qemuDomainGetJobInfo(virDomainPtr dom,
virDomainJobInfoPtr info)
{
virQEMUDriverPtr driver = dom->conn->privateData;
g_autoptr(qemuDomainJobInfo) jobInfo = NULL;
virDomainObjPtr 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(driver, vm, false, &jobInfo) < 0)
goto cleanup;
if (!jobInfo ||
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_NONE) {
ret = 0;
goto cleanup;
}
ret = qemuDomainJobInfoToInfo(jobInfo, info);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetJobStats(virDomainPtr dom,
int *type,
virTypedParameterPtr *params,
int *nparams,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
qemuDomainObjPrivatePtr priv;
g_autoptr(qemuDomainJobInfo) jobInfo = 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(driver, vm, completed, &jobInfo) < 0)
goto cleanup;
if (!jobInfo ||
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_NONE) {
*type = VIR_DOMAIN_JOB_NONE;
*params = NULL;
*nparams = 0;
ret = 0;
goto cleanup;
}
ret = qemuDomainJobInfoToParams(jobInfo, type, params, nparams);
if (completed && ret == 0 && !(flags & VIR_DOMAIN_JOB_STATS_KEEP_COMPLETED))
g_clear_pointer(&priv->job.completed, qemuDomainJobInfoFree);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainAbortJobMigration(virDomainObjPtr vm)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
int ret;
VIR_DEBUG("Cancelling migration job at client request");
qemuDomainObjAbortAsyncJob(vm);
qemuDomainObjEnterMonitor(priv->driver, vm);
ret = qemuMonitorMigrateCancel(priv->mon);
if (qemuDomainObjExitMonitor(priv->driver, vm) < 0)
ret = -1;
return ret;
}
static int qemuDomainAbortJob(virDomainPtr dom)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
qemuDomainObjPrivatePtr priv;
int reason;
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainAbortJobEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_ABORT) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
priv = vm->privateData;
switch (priv->job.asyncJob) {
case QEMU_ASYNC_JOB_NONE:
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("no job is active on the domain"));
break;
case QEMU_ASYNC_JOB_MIGRATION_IN:
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot abort incoming migration;"
" use virDomainDestroy instead"));
break;
case QEMU_ASYNC_JOB_START:
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot abort VM start;"
" use virDomainDestroy instead"));
break;
case QEMU_ASYNC_JOB_MIGRATION_OUT:
if ((priv->job.current->status == QEMU_DOMAIN_JOB_STATUS_POSTCOPY ||
(virDomainObjGetState(vm, &reason) == VIR_DOMAIN_PAUSED &&
reason == VIR_DOMAIN_PAUSED_POSTCOPY))) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot abort migration in post-copy mode"));
goto endjob;
}
ret = qemuDomainAbortJobMigration(vm);
break;
case QEMU_ASYNC_JOB_SAVE:
ret = qemuDomainAbortJobMigration(vm);
break;
case QEMU_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 QEMU_ASYNC_JOB_SNAPSHOT:
ret = qemuDomainAbortJobMigration(vm);
break;
case QEMU_ASYNC_JOB_BACKUP:
qemuBackupJobCancelBlockjobs(vm, priv->backup, true, QEMU_ASYNC_JOB_NONE);
ret = 0;
break;
case QEMU_ASYNC_JOB_LAST:
default:
virReportEnumRangeError(qemuDomainAsyncJob, priv->job.asyncJob);
break;
}
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainMigrateSetMaxDowntime(virDomainPtr dom,
unsigned long long downtime,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
qemuDomainObjPrivatePtr priv;
g_autoptr(qemuMigrationParams) migParams = NULL;
int ret = -1;
int rc;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainMigrateSetMaxDowntimeEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MIGRATION_OP) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
priv = vm->privateData;
VIR_DEBUG("Setting migration downtime to %llums", downtime);
if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_PARAM_DOWNTIME)) {
if (!(migParams = qemuMigrationParamsNew()))
goto endjob;
if (qemuMigrationParamsSetULL(migParams,
QEMU_MIGRATION_PARAM_DOWNTIME_LIMIT,
downtime) < 0)
goto endjob;
if (qemuMigrationParamsApply(driver, vm, QEMU_ASYNC_JOB_NONE,
migParams) < 0)
goto endjob;
} else {
qemuDomainObjEnterMonitor(driver, vm);
rc = qemuMonitorSetMigrationDowntime(priv->mon, downtime);
if (qemuDomainObjExitMonitor(driver, vm) < 0 || rc < 0)
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainMigrateGetMaxDowntime(virDomainPtr dom,
unsigned long long *downtime,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
qemuMigrationParamsPtr 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(driver, vm, QEMU_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (qemuMigrationParamsFetch(driver, vm, QEMU_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(driver, vm);
cleanup:
qemuMigrationParamsFree(migParams);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainMigrateGetCompressionCache(virDomainPtr dom,
unsigned long long *cacheSize,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
qemuDomainObjPrivatePtr priv;
g_autoptr(qemuMigrationParams) migParams = NULL;
int ret = -1;
int rc;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainMigrateGetCompressionCacheEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
priv = vm->privateData;
if (!qemuMigrationCapsGet(vm, QEMU_MIGRATION_CAP_XBZRLE)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("Compressed migration is not supported by "
"QEMU binary"));
goto endjob;
}
if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_PARAM_XBZRLE_CACHE_SIZE)) {
if (qemuMigrationParamsFetch(driver, vm, QEMU_ASYNC_JOB_NONE,
&migParams) < 0)
goto endjob;
if (qemuMigrationParamsGetULL(migParams,
QEMU_MIGRATION_PARAM_XBZRLE_CACHE_SIZE,
cacheSize) < 0)
goto endjob;
} else {
qemuDomainObjEnterMonitor(driver, vm);
rc = qemuMonitorGetMigrationCacheSize(priv->mon, cacheSize);
if (qemuDomainObjExitMonitor(driver, vm) < 0 || rc < 0)
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainMigrateSetCompressionCache(virDomainPtr dom,
unsigned long long cacheSize,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
qemuDomainObjPrivatePtr priv;
g_autoptr(qemuMigrationParams) migParams = NULL;
int ret = -1;
int rc;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainMigrateSetCompressionCacheEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MIGRATION_OP) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
priv = vm->privateData;
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 (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_PARAM_XBZRLE_CACHE_SIZE)) {
if (!(migParams = qemuMigrationParamsNew()))
goto endjob;
if (qemuMigrationParamsSetULL(migParams,
QEMU_MIGRATION_PARAM_XBZRLE_CACHE_SIZE,
cacheSize) < 0)
goto endjob;
if (qemuMigrationParamsApply(driver, vm, QEMU_ASYNC_JOB_NONE,
migParams) < 0)
goto endjob;
} else {
qemuDomainObjEnterMonitor(driver, vm);
rc = qemuMonitorSetMigrationCacheSize(priv->mon, cacheSize);
if (qemuDomainObjExitMonitor(driver, vm) < 0 || rc < 0)
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainMigrateSetMaxSpeed(virDomainPtr dom,
unsigned long bandwidth,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
qemuDomainObjPrivatePtr priv;
bool postcopy = !!(flags & VIR_DOMAIN_MIGRATE_MAX_SPEED_POSTCOPY);
g_autoptr(qemuMigrationParams) migParams = NULL;
bool bwParam;
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(driver, vm, QEMU_JOB_MIGRATION_OP) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
VIR_DEBUG("Setting migration bandwidth to %luMbs", bandwidth);
bwParam = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_PARAM_BANDWIDTH);
if (postcopy || bwParam) {
qemuMigrationParam param;
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(driver, vm, QEMU_ASYNC_JOB_NONE,
migParams) < 0)
goto endjob;
} else {
int rc;
qemuDomainObjEnterMonitor(driver, vm);
rc = qemuMonitorSetMigrationSpeed(priv->mon, bandwidth);
if (qemuDomainObjExitMonitor(driver, vm) < 0 || rc < 0)
goto endjob;
}
if (!postcopy)
priv->migMaxBandwidth = bandwidth;
ret = 0;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainMigrationGetPostcopyBandwidth(virQEMUDriverPtr driver,
virDomainObjPtr vm,
unsigned long *bandwidth)
{
g_autoptr(qemuMigrationParams) migParams = NULL;
unsigned long long bw;
int rc;
int ret = -1;
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY) < 0)
return -1;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
if (qemuMigrationParamsFetch(driver, vm, QEMU_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(driver, vm);
return ret;
}
static int
qemuDomainMigrateGetMaxSpeed(virDomainPtr dom,
unsigned long *bandwidth,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
qemuDomainObjPrivatePtr 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(driver, vm, bandwidth) < 0)
goto cleanup;
} else {
*bandwidth = priv->migMaxBandwidth;
}
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainMigrateStartPostCopy(virDomainPtr dom,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
qemuDomainObjPrivatePtr priv;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainMigrateStartPostCopyEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MIGRATION_OP) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
priv = vm->privateData;
if (priv->job.asyncJob != QEMU_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(driver, vm);
ret = qemuMonitorMigrateStartPostCopy(priv->mon);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static virDomainSnapshotPtr
qemuDomainSnapshotCreateXML(virDomainPtr domain,
const char *xmlDesc,
unsigned int flags)
{
virDomainObjPtr 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)
{
virDomainObjPtr 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)
{
virDomainObjPtr 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)
{
virDomainObjPtr 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)
{
virDomainObjPtr vm = NULL;
virDomainMomentObjPtr 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)
{
virDomainObjPtr vm = NULL;
virDomainMomentObjPtr 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)
{
virDomainObjPtr vm = NULL;
virDomainMomentObjPtr 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)
{
virDomainObjPtr vm;
virDomainMomentObjPtr 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)
{
virDomainObjPtr 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)
{
virDomainObjPtr vm;
virDomainMomentObjPtr 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)
{
virDomainObjPtr 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)
{
virQEMUDriverPtr driver = snapshot->domain->conn->privateData;
virDomainObjPtr vm = NULL;
char *xml = NULL;
virDomainMomentObjPtr 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)
{
virDomainObjPtr vm = NULL;
int ret = -1;
virDomainMomentObjPtr 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)
{
virDomainObjPtr vm = NULL;
int ret = -1;
virDomainMomentObjPtr 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)
{
virDomainObjPtr vm = NULL;
int ret = -1;
virNWFilterReadLockFilterUpdates();
if (!(vm = qemuDomObjFromSnapshot(snapshot)))
goto cleanup;
if (virDomainRevertToSnapshotEnsureACL(snapshot->domain->conn, vm->def) < 0)
goto cleanup;
ret = qemuSnapshotRevert(vm, snapshot, flags);
cleanup:
virDomainObjEndAPI(&vm);
virNWFilterUnlockFilterUpdates();
return ret;
}
static int
qemuDomainSnapshotDelete(virDomainSnapshotPtr snapshot,
unsigned int flags)
{
virDomainObjPtr 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)
{
virDomainObjPtr 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)
{
virDomainObjPtr 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)
{
virDomainObjPtr vm = NULL;
virDomainMomentObjPtr 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)
{
virDomainObjPtr vm;
virDomainMomentObjPtr 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)
{
virDomainObjPtr vm;
virDomainMomentObjPtr 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)
{
virDomainObjPtr 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)
{
virDomainObjPtr 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)
{
virDomainObjPtr 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)
{
virDomainObjPtr 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 qemuDomainQemuMonitorCommand(virDomainPtr domain, const char *cmd,
char **result, unsigned int flags)
{
virQEMUDriverPtr driver = domain->conn->privateData;
virDomainObjPtr vm = NULL;
int ret = -1;
qemuDomainObjPrivatePtr priv;
bool hmp;
virCheckFlags(VIR_DOMAIN_QEMU_MONITOR_COMMAND_HMP, -1);
if (!(vm = qemuDomainObjFromDomain(domain)))
goto cleanup;
if (virDomainQemuMonitorCommandEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(driver, vm, QEMU_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(driver, vm);
ret = qemuMonitorArbitraryCommand(priv->mon, cmd, result, hmp);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainOpenConsole(virDomainPtr dom,
const char *dev_name,
virStreamPtr st,
unsigned int flags)
{
virDomainObjPtr vm = NULL;
int ret = -1;
size_t i;
virDomainChrDefPtr chr = NULL;
qemuDomainObjPrivatePtr 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)
{
virDomainObjPtr vm = NULL;
int ret = -1;
size_t i;
virDomainChrDefPtr chr = NULL;
qemuDomainObjPrivatePtr 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(virQEMUDriverPtr driver,
virDomainObjPtr vm,
qemuBlockJobDataPtr job,
virDomainDiskDefPtr disk)
{
g_autoptr(qemuBlockStorageSourceChainData) chainattachdata = NULL;
int ret = -1;
qemuDomainObjPrivatePtr priv = vm->privateData;
bool blockdev = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV);
g_autoptr(virJSONValue) bitmapactions = NULL;
g_autoptr(virJSONValue) reopenactions = NULL;
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 (blockdev && !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,
priv->qemuCaps)))
return -1;
reopenactions = virJSONValueNewArray();
if (qemuMonitorTransactionSnapshotBlockdev(reopenactions,
disk->mirror->backingStore->nodeformat,
disk->mirror->nodeformat))
return -1;
}
}
break;
case QEMU_BLOCKJOB_TYPE_ACTIVE_COMMIT:
if (blockdev) {
bitmapactions = virJSONValueNewArray();
if (qemuMonitorTransactionBitmapAdd(bitmapactions,
job->data.commit.base->nodeformat,
"libvirt-tmp-activewrite",
false,
false,
0) < 0)
return -1;
}
break;
}
qemuDomainObjEnterMonitor(driver, vm);
if (blockdev) {
int rc = 0;
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);
} else {
ret = qemuMonitorDrivePivot(priv->mon, job->name);
}
if (qemuDomainObjExitMonitor(driver, vm) < 0)
return -1;
/* 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(virDomainObjPtr vm,
const char *path,
const char *base,
unsigned long bandwidth,
unsigned int flags)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
virQEMUDriverPtr driver = priv->driver;
const char *device = NULL;
const char *jobname = NULL;
virDomainDiskDefPtr disk;
virStorageSourcePtr baseSource = NULL;
unsigned int baseIndex = 0;
g_autofree char *basePath = NULL;
g_autofree char *backingPath = NULL;
unsigned long long speed = bandwidth;
qemuBlockJobDataPtr job = NULL;
bool persistjob = false;
const char *nodebase = NULL;
bool blockdev = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV);
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(driver, vm, QEMU_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 &&
(virStorageFileParseChainIndex(disk->dst, base, &baseIndex) < 0 ||
!(baseSource = virStorageFileChainLookup(disk->src, disk->src,
base, baseIndex, NULL))))
goto endjob;
if (baseSource) {
if (flags & VIR_DOMAIN_BLOCK_REBASE_RELATIVE) {
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_CHANGE_BACKING_FILE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this QEMU binary doesn't support relative "
"block pull/rebase"));
goto endjob;
}
if (blockdev &&
qemuBlockUpdateRelativeBacking(vm, disk->src, disk->src) < 0)
goto endjob;
if (virStorageFileGetRelativeBackingPath(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 (blockdev) {
jobname = job->name;
persistjob = true;
if (baseSource) {
nodebase = baseSource->nodeformat;
if (!backingPath &&
!(backingPath = qemuBlockGetBackingStoreString(baseSource, false)))
goto endjob;
}
device = disk->src->nodeformat;
} else {
device = job->name;
}
qemuDomainObjEnterMonitor(driver, vm);
if (!blockdev && baseSource)
basePath = qemuMonitorDiskNameLookup(priv->mon, device, disk->src,
baseSource);
if (blockdev ||
(!baseSource || basePath))
ret = qemuMonitorBlockStream(priv->mon, device, jobname, persistjob, basePath,
nodebase, backingPath, speed);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
if (ret < 0)
goto endjob;
qemuBlockJobStarted(job, vm);
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
qemuBlockJobStartupFinalize(vm, job);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainBlockJobAbort(virDomainPtr dom,
const char *path,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainDiskDefPtr disk = NULL;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
bool pivot = !!(flags & VIR_DOMAIN_BLOCK_JOB_ABORT_PIVOT);
bool async = !!(flags & VIR_DOMAIN_BLOCK_JOB_ABORT_ASYNC);
g_autoptr(qemuBlockJobData) job = NULL;
virDomainObjPtr vm;
qemuDomainObjPrivatePtr priv = NULL;
bool blockdev = false;
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(driver, vm, QEMU_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;
blockdev = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV);
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(driver, vm, job, disk)) < 0)
goto endjob;
} else {
qemuDomainObjEnterMonitor(driver, vm);
if (blockdev)
ret = qemuMonitorJobCancel(priv->mon, job->name, false);
else
ret = qemuMonitorBlockJobCancel(priv->mon, job->name);
if (qemuDomainObjExitMonitor(driver, vm) < 0) {
ret = -1;
goto endjob;
}
if (ret < 0)
goto endjob;
if (disk->mirror)
disk->mirrorState = VIR_DOMAIN_DISK_MIRROR_STATE_ABORT;
job->state = QEMU_BLOCKJOB_STATE_ABORTING;
}
ignore_value(virDomainObjSave(vm, driver->xmlopt, cfg->stateDir));
if (!async) {
qemuBlockJobUpdate(vm, job, QEMU_ASYNC_JOB_NONE);
while (qemuBlockJobIsRunning(job)) {
if (virDomainObjWait(vm) < 0) {
ret = -1;
goto endjob;
}
qemuBlockJobUpdate(vm, job, QEMU_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"),
job->name);
} else {
virReportError(VIR_ERR_OPERATION_FAILED,
_("block job '%s' failed while pivoting: %s"),
job->name, job->errmsg);
}
ret = -1;
goto endjob;
}
}
endjob:
if (job && !async)
qemuBlockJobSyncEnd(vm, job, QEMU_ASYNC_JOB_NONE);
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuBlockJobInfoTranslate(qemuMonitorBlockJobInfoPtr rawInfo,
virDomainBlockJobInfoPtr info,
virDomainDiskDefPtr disk,
bool reportBytes)
{
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 && !info->end) {
if (rawInfo->ready > 0) {
info->cur = info->end = 1;
} else if (!rawInfo->ready) {
info->end = 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 == 0 &&
info->cur == info->end &&
info->cur > 0)
info->cur -= 1;
info->type = rawInfo->type;
if (info->type == VIR_DOMAIN_BLOCK_JOB_TYPE_COMMIT &&
disk->mirrorJob == VIR_DOMAIN_BLOCK_JOB_TYPE_ACTIVE_COMMIT)
info->type = disk->mirrorJob;
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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
virDomainDiskDefPtr disk;
int ret = -1;
qemuMonitorBlockJobInfo rawInfo;
g_autoptr(qemuBlockJobData) job = 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(driver, vm, QEMU_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(driver, vm);
ret = qemuMonitorGetBlockJobInfo(qemuDomainGetMonitor(vm), job->name, &rawInfo);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
if (ret <= 0)
goto endjob;
if (qemuBlockJobInfoTranslate(&rawInfo, info, disk,
flags & VIR_DOMAIN_BLOCK_JOB_INFO_BANDWIDTH_BYTES) < 0) {
ret = -1;
goto endjob;
}
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainBlockJobSetSpeed(virDomainPtr dom,
const char *path,
unsigned long bandwidth,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainDiskDefPtr disk;
int ret = -1;
virDomainObjPtr 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(driver, vm, QEMU_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(driver, vm);
ret = qemuMonitorBlockJobSetSpeed(qemuDomainGetMonitor(vm),
job->name,
speed);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainBlockCopyValidateMirror(virStorageSourcePtr mirror,
const char *dst,
bool *reuse)
{
int desttype = virStorageSourceGetActualType(mirror);
struct stat st;
if (!virStorageSourceIsLocalStorage(mirror))
return 0;
if (virStorageFileAccess(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 (virStorageFileStat(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(virStorageSourcePtr mirror,
bool shallow,
bool blockdev)
{
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 (!blockdev) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("backingStore of mirror target is not supported by this qemu"));
return -1;
}
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(virDomainObjPtr vm,
virConnectPtr conn,
const char *path,
virStorageSourcePtr mirrorsrc,
unsigned long long bandwidth,
unsigned int granularity,
unsigned long long buf_size,
unsigned int flags,
bool keepParentLabel)
{
virQEMUDriverPtr driver = conn->privateData;
qemuDomainObjPrivatePtr priv = vm->privateData;
virDomainDiskDefPtr disk = NULL;
int ret = -1;
bool need_unlink = false;
bool need_revoke = false;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
const char *format = NULL;
bool mirror_reuse = !!(flags & VIR_DOMAIN_BLOCK_COPY_REUSE_EXT);
bool mirror_shallow = !!(flags & VIR_DOMAIN_BLOCK_COPY_SHALLOW);
bool existing = mirror_reuse;
qemuBlockJobDataPtr job = NULL;
g_autoptr(virStorageSource) mirror = mirrorsrc;
bool blockdev = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV);
bool supports_create = false;
bool supports_access = false;
bool supports_detect = false;
g_autoptr(qemuBlockStorageSourceChainData) data = NULL;
g_autoptr(qemuBlockStorageSourceChainData) crdata = NULL;
virStorageSourcePtr n;
virStorageSourcePtr mirrorBacking = NULL;
g_autoptr(virHashTable) blockNamedNodeData = NULL;
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, -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(driver, vm, QEMU_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 &&
qemuDomainDefValidateDiskLunSource(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,
blockdev) < 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;
}
/* Prepare the destination file. */
if (!blockdev &&
!virStorageSourceIsLocalStorage(mirror)) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("non-file destination not supported yet"));
goto endjob;
}
supports_access = virStorageFileSupportsAccess(mirror) == 1;
supports_create = virStorageFileSupportsCreate(mirror) == 1;
supports_detect = virStorageFileSupportsBackingChainTraversal(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. In case when 'blockdev' is used this is
* required so that libvirt can properly label the image for access by qemu */
if (!existing) {
if (supports_create) {
if (virStorageFileCreate(mirror) < 0) {
virReportSystemError(errno, "%s", _("failed to create copy target"));
goto endjob;
}
need_unlink = true;
}
}
if (mirror->format > 0)
format = virStorageFileFormatTypeToString(mirror->format);
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 */
if (blockdev) {
for (n = mirror; virStorageSourceIsBacking(n); n = n->backingStore) {
if (qemuDomainPrepareStorageSourceBlockdev(disk, n, priv, cfg) < 0)
goto endjob;
}
}
/* 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 (blockdev) {
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,
priv->qemuCaps)))
goto endjob;
} else {
if (!(data = qemuBuildStorageSourceChainAttachPrepareBlockdev(mirror,
priv->qemuCaps)))
goto endjob;
}
} else {
if (!(blockNamedNodeData = qemuBlockGetNamedNodeData(vm, QEMU_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,
priv->qemuCaps)))
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,
priv->qemuCaps)))
goto endjob;
}
if (data) {
qemuDomainObjEnterMonitor(driver, vm);
rc = qemuBlockStorageSourceChainAttach(priv->mon, data);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
goto endjob;
if (rc < 0)
goto endjob;
}
if (crdata &&
qemuBlockStorageSourceCreate(vm, mirror, mirrorBacking, mirror->backingStore,
crdata->srcdata[0], QEMU_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(driver, vm);
if (blockdev) {
ret = qemuMonitorBlockdevMirror(priv->mon, job->name, true,
qemuDomainDiskGetTopNodename(disk),
mirror->nodeformat, bandwidth,
granularity, buf_size, mirror_shallow);
} else {
/* qemuMonitorDriveMirror needs to honor the REUSE_EXT flag as specified
* by the user */
ret = qemuMonitorDriveMirror(priv->mon, job->name, mirror->path, format,
bandwidth, granularity, buf_size,
mirror_shallow, mirror_reuse);
}
virDomainAuditDisk(vm, NULL, mirror, "mirror", ret >= 0);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
if (ret < 0) {
qemuDomainStorageSourceChainAccessRevoke(driver, vm, mirror);
goto endjob;
}
/* Update vm in place to match changes. */
need_unlink = false;
virStorageFileDeinit(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(driver, vm);
if (data)
qemuBlockStorageSourceChainDetach(priv->mon, data);
if (crdata)
qemuBlockStorageSourceAttachRollback(priv->mon, crdata->srcdata[0]);
ignore_value(qemuDomainObjExitMonitor(driver, vm));
}
if (need_revoke)
qemuDomainStorageSourceChainAccessRevoke(driver, vm, mirror);
}
if (need_unlink && virStorageFileUnlink(mirror) < 0)
VIR_WARN("%s", _("unable to remove just-created copy target"));
virStorageFileDeinit(mirror);
qemuDomainObjEndJob(driver, vm);
qemuBlockJobStartupFinalize(vm, job);
return ret;
}
static int
qemuDomainBlockRebase(virDomainPtr dom, const char *path, const char *base,
unsigned long bandwidth, unsigned int flags)
{
virDomainObjPtr 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
unsigned long long bandwidth = 0;
unsigned int granularity = 0;
unsigned long long buf_size = 0;
virDomainDiskDefPtr diskdef = NULL;
virStorageSourcePtr dest = NULL;
size_t i;
virCheckFlags(VIR_DOMAIN_BLOCK_COPY_SHALLOW |
VIR_DOMAIN_BLOCK_COPY_REUSE_EXT |
VIR_DOMAIN_BLOCK_COPY_TRANSIENT_JOB, -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 (!(diskdef = virDomainDiskDefParse(destxml, driver->xmlopt,
VIR_DOMAIN_DEF_PARSE_INACTIVE |
VIR_DOMAIN_DEF_PARSE_DISK_SOURCE)))
goto cleanup;
dest = g_steal_pointer(&diskdef->src);
ret = qemuDomainBlockCopyCommon(vm, dom->conn, disk, dest, bandwidth,
granularity, buf_size, flags, false);
cleanup:
virDomainDiskDefFree(diskdef);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainBlockPull(virDomainPtr dom, const char *path, unsigned long bandwidth,
unsigned int flags)
{
virDomainObjPtr 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
qemuDomainObjPrivatePtr priv;
virDomainObjPtr vm = NULL;
const char *device = NULL;
const char *jobname = NULL;
int ret = -1;
virDomainDiskDefPtr disk = NULL;
virStorageSourcePtr topSource;
unsigned int topIndex = 0;
virStorageSourcePtr baseSource = NULL;
unsigned int baseIndex = 0;
virStorageSourcePtr top_parent = NULL;
bool clean_access = false;
g_autofree char *topPath = NULL;
g_autofree char *basePath = NULL;
g_autofree char *backingPath = NULL;
unsigned long long speed = bandwidth;
qemuBlockJobDataPtr job = NULL;
g_autoptr(virStorageSource) mirror = NULL;
const char *nodetop = NULL;
const char *nodebase = NULL;
bool persistjob = false;
bool blockdev = false;
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(driver, vm, QEMU_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
blockdev = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV);
/* 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 (!blockdev && (flags & VIR_DOMAIN_BLOCK_COMMIT_DELETE)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("deleting committed images is not supported by this VM"));
goto endjob;
}
if (!top || STREQ(top, disk->dst))
topSource = disk->src;
else if (virStorageFileParseChainIndex(disk->dst, top, &topIndex) < 0 ||
!(topSource = virStorageFileChainLookup(disk->src, NULL,
top, topIndex,
&top_parent)))
goto endjob;
if (topSource == disk->src) {
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_ACTIVE_COMMIT)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("active commit not supported with this QEMU binary"));
goto endjob;
}
/* 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 (virStorageFileParseChainIndex(disk->dst, base, &baseIndex) < 0 ||
!(baseSource = virStorageFileChainLookup(disk->src, topSource,
base, baseIndex, 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 (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_CHANGE_BACKING_FILE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this qemu doesn't support relative block commit"));
goto endjob;
}
if (blockdev && top_parent &&
qemuBlockUpdateRelativeBacking(vm, top_parent, disk->src) < 0)
goto endjob;
if (virStorageFileGetRelativeBackingPath(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;
/* Start the commit operation. Pass the user's original spelling,
* if any, through to qemu, since qemu may behave differently
* depending on whether the input was specified as relative or
* absolute (that is, our absolute top_canon may do the wrong
* thing if the user specified a relative name). */
if (blockdev) {
persistjob = true;
jobname = job->name;
nodetop = topSource->nodeformat;
nodebase = baseSource->nodeformat;
device = qemuDomainDiskGetTopNodename(disk);
if (!backingPath && top_parent &&
!(backingPath = qemuBlockGetBackingStoreString(baseSource, false)))
goto endjob;
} else {
device = job->name;
}
qemuDomainObjEnterMonitor(driver, vm);
if (!blockdev) {
basePath = qemuMonitorDiskNameLookup(priv->mon, device, disk->src,
baseSource);
topPath = qemuMonitorDiskNameLookup(priv->mon, device, disk->src,
topSource);
}
if (blockdev || (basePath && topPath))
ret = qemuMonitorBlockCommit(priv->mon, device, jobname, persistjob,
topPath, nodetop, basePath, nodebase,
backingPath, speed);
if (qemuDomainObjExitMonitor(driver, vm) < 0 || ret < 0) {
ret = -1;
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(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainOpenGraphics(virDomainPtr dom,
unsigned int idx,
int fd,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
int ret = -1;
qemuDomainObjPrivatePtr 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(driver, vm, QEMU_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_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 or SPICE 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(driver, vm);
ret = qemuMonitorOpenGraphics(priv->mon, protocol, fd, "graphicsfd",
(flags & VIR_DOMAIN_OPEN_GRAPHICS_SKIPAUTH) != 0);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainOpenGraphicsFD(virDomainPtr dom,
unsigned int idx,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
int ret = -1;
qemuDomainObjPrivatePtr 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_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 or SPICE 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(driver, vm, QEMU_JOB_MODIFY) < 0)
goto cleanup;
qemuDomainObjEnterMonitor(driver, vm);
ret = qemuMonitorOpenGraphics(priv->mon, protocol, pair[1], "graphicsfd",
(flags & VIR_DOMAIN_OPEN_GRAPHICS_SKIPAUTH));
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
qemuDomainObjEndJob(driver, 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;
/* If the user didn't specify bytes limits, inherit previous values;
* likewise if the user didn't specify iops limits. */
static int
qemuDomainSetBlockIoTuneDefaults(virDomainBlockIoTuneInfoPtr newinfo,
virDomainBlockIoTuneInfoPtr 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(virDomainDefPtr def,
virDomainBlockIoTuneInfoPtr iotune)
{
size_t i;
if (!iotune->group_name)
return;
for (i = 0; i < def->ndisks; i++) {
virDomainDiskDefPtr 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 virDomainBlockIoTuneInfoPtr
qemuDomainFindGroupBlockIoTune(virDomainDefPtr def,
virDomainDiskDefPtr disk,
virDomainBlockIoTuneInfoPtr 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++) {
virDomainDiskDefPtr d = def->disks[i];
if (STREQ_NULLABLE(newiotune->group_name, d->blkdeviotune.group_name))
return &d->blkdeviotune;
}
return &disk->blkdeviotune;
}
static int
qemuDomainCheckBlockIoTuneReset(virDomainDiskDefPtr disk,
virDomainBlockIoTuneInfoPtr 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
qemuDomainObjPrivatePtr priv;
virDomainDefPtr def = NULL;
virDomainDefPtr persistentDef = NULL;
virDomainBlockIoTuneInfo info;
virDomainBlockIoTuneInfo conf_info;
g_autofree char *drivealias = NULL;
const char *qdevid = NULL;
int ret = -1;
size_t i;
virDomainDiskDefPtr conf_disk = NULL;
virDomainDiskDefPtr disk;
qemuBlockIoTuneSetFlags set_fields = 0;
bool supportMaxOptions = true;
bool supportGroupNameOption = true;
bool supportMaxLengthOptions = true;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virObjectEventPtr event = NULL;
virTypedParameterPtr eventParams = NULL;
int eventNparams = 0;
int eventMaxparams = 0;
virDomainBlockIoTuneInfoPtr cur_info;
virDomainBlockIoTuneInfoPtr 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(driver, vm, QEMU_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) {
supportMaxOptions = virQEMUCapsGet(priv->qemuCaps,
QEMU_CAPS_DRIVE_IOTUNE_MAX);
supportGroupNameOption = virQEMUCapsGet(priv->qemuCaps,
QEMU_CAPS_DRIVE_IOTUNE_GROUP);
supportMaxLengthOptions =
virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DRIVE_IOTUNE_MAX_LENGTH);
if (!supportMaxOptions &&
(set_fields & (QEMU_BLOCK_IOTUNE_SET_BYTES_MAX |
QEMU_BLOCK_IOTUNE_SET_IOPS_MAX |
QEMU_BLOCK_IOTUNE_SET_SIZE_IOPS))) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("a block I/O throttling parameter is not "
"supported with this QEMU binary"));
goto endjob;
}
if (!supportGroupNameOption &&
(set_fields & QEMU_BLOCK_IOTUNE_SET_GROUP_NAME)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("the block I/O throttling group parameter is not "
"supported with this QEMU binary"));
goto endjob;
}
if (!supportMaxLengthOptions &&
(set_fields & (QEMU_BLOCK_IOTUNE_SET_BYTES_MAX_LENGTH |
QEMU_BLOCK_IOTUNE_SET_IOPS_MAX_LENGTH))) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("a block I/O throttling length parameter is not "
"supported with this QEMU binary"));
goto endjob;
}
if (!(disk = qemuDomainDiskByName(def, path)))
goto endjob;
if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV) &&
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
/* NB: Let's let QEMU decide how to handle issues with _length
* via the JSON error code from the block_set_io_throttle call */
qemuDomainObjEnterMonitor(driver, vm);
ret = qemuMonitorSetBlockIoThrottle(priv->mon, drivealias, qdevid,
&info, supportMaxOptions,
set_fields & QEMU_BLOCK_IOTUNE_SET_GROUP_NAME,
supportMaxLengthOptions);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
if (ret < 0)
goto endjob;
ret = -1;
if (virDomainDiskSetBlockIOTune(disk, &info) < 0)
goto endjob;
qemuDomainSetGroupBlockIoTune(def, &info);
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
goto endjob;
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;
}
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;
if (virDomainDiskSetBlockIOTune(conf_disk, &conf_info) < 0)
goto endjob;
qemuDomainSetGroupBlockIoTune(persistentDef, &conf_info);
if (virDomainDefSave(persistentDef, driver->xmlopt,
cfg->configDir) < 0)
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(driver, 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)
{
virDomainDiskDefPtr disk;
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
qemuDomainObjPrivatePtr priv = NULL;
virDomainDefPtr def = NULL;
virDomainDefPtr 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(driver, vm, QEMU_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;
if (def) {
/* If the VM is running, we can check if the current VM can use
* optional parameters or not. */
maxparams = QEMU_NB_BLOCK_IO_TUNE_BASE_PARAMS;
if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DRIVE_IOTUNE_MAX))
maxparams += QEMU_NB_BLOCK_IO_TUNE_MAX_PARAMS;
if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DRIVE_IOTUNE_GROUP))
maxparams += QEMU_NB_BLOCK_IO_TUNE_GROUP_PARAMS;
if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DRIVE_IOTUNE_MAX_LENGTH))
maxparams += QEMU_NB_BLOCK_IO_TUNE_LENGTH_PARAMS;
} else {
maxparams = QEMU_NB_BLOCK_IO_TUNE_ALL_PARAMS;
}
if (*nparams == 0) {
*nparams = maxparams;
ret = 0;
goto endjob;
} else if (*nparams < maxparams) {
maxparams = *nparams;
}
*nparams = 0;
if (def) {
if (!(disk = qemuDomainDiskByName(def, path)))
goto endjob;
if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV) &&
QEMU_DOMAIN_DISK_PRIVATE(disk)->qomName) {
qdevid = QEMU_DOMAIN_DISK_PRIVATE(disk)->qomName;
} else {
if (!(drivealias = qemuAliasDiskDriveFromDisk(disk)))
goto endjob;
}
qemuDomainObjEnterMonitor(driver, vm);
ret = qemuMonitorGetBlockIoThrottle(priv->mon, drivealias, qdevid, &reply);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
goto endjob;
if (ret < 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;
}
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(driver, vm);
cleanup:
VIR_FREE(reply.group_name);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetDiskErrors(virDomainPtr dom,
virDomainDiskErrorPtr errors,
unsigned int nerrors,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
qemuDomainObjPrivatePtr priv;
virHashTablePtr table = NULL;
bool blockdev = false;
int ret = -1;
size_t i;
int n = 0;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
priv = vm->privateData;
blockdev = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV);
if (virDomainGetDiskErrorsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!errors) {
ret = vm->def->ndisks;
goto endjob;
}
qemuDomainObjEnterMonitor(driver, vm);
table = qemuMonitorGetBlockInfo(priv->mon);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
goto endjob;
if (!table)
goto endjob;
for (i = n = 0; i < vm->def->ndisks; i++) {
struct qemuDomainDiskInfo *info;
virDomainDiskDefPtr disk = vm->def->disks[i];
qemuDomainDiskPrivatePtr diskPriv = QEMU_DOMAIN_DISK_PRIVATE(disk);
const char *entryname = disk->info.alias;
if (blockdev && 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(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
virHashFree(table);
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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr 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(driver, vm, QEMU_JOB_MODIFY) < 0)
goto cleanup;
ret = virDomainObjSetMetadata(vm, type, metadata, key, uri,
driver->xmlopt, cfg->stateDir,
cfg->configDir, flags);
if (ret == 0) {
virObjectEventPtr ev = NULL;
ev = virDomainEventMetadataChangeNewFromObj(vm, type, uri);
virObjectEventStateQueue(driver->domainEventState, ev);
}
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static char *
qemuDomainGetMetadata(virDomainPtr dom,
int type,
const char *uri,
unsigned int flags)
{
virDomainObjPtr 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)
{
virDomainObjPtr vm = NULL;
int ret = -1;
qemuDomainObjPrivatePtr priv;
virBitmapPtr 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:
virBitmapFree(guestvcpus);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainProbeQMPCurrentMachine(virQEMUDriverPtr driver,
virDomainObjPtr vm,
bool *wakeupSupported)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
qemuMonitorCurrentMachineInfo info = { 0 };
int rv;
qemuDomainObjEnterMonitor(driver, vm);
rv = qemuMonitorGetCurrentMachineInfo(priv->mon, &info);
if (qemuDomainObjExitMonitor(driver, vm) < 0 ||
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(virQEMUDriverPtr driver,
virDomainObjPtr vm,
bool *wakeupSupported)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
int ret = -1;
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_QUERY_CURRENT_MACHINE))
return -1;
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
return -1;
if ((ret = virDomainObjCheckActive(vm)) < 0)
goto endjob;
ret = qemuDomainProbeQMPCurrentMachine(driver, vm, wakeupSupported);
endjob:
qemuDomainObjEndJob(driver, vm);
return ret;
}
static int
qemuDomainPMSuspendAgent(virQEMUDriverPtr driver,
virDomainObjPtr vm,
unsigned int target)
{
qemuAgentPtr agent;
int ret = -1;
if (qemuDomainObjBeginAgentJob(driver, vm, QEMU_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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr 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(driver, 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(driver, vm, target);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainPMWakeup(virDomainPtr dom,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
qemuDomainObjPrivatePtr priv;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainPMWakeupEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
priv = vm->privateData;
qemuDomainObjEnterMonitor(driver, vm);
ret = qemuMonitorSystemWakeup(priv->mon);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuConnectListAllDomains(virConnectPtr conn,
virDomainPtr **domains,
unsigned int flags)
{
virQEMUDriverPtr 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)
{
virQEMUDriverPtr driver = domain->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
char *result = NULL;
qemuAgentPtr agent;
virCheckFlags(0, NULL);
if (!(vm = qemuDomainObjFromDomain(domain)))
goto cleanup;
if (virDomainQemuAgentCommandEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginAgentJob(driver, vm, QEMU_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)
{
virQEMUDriverPtr 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)
{
virQEMUDriverPtr 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
qemuAgentPtr 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(driver, vm, QEMU_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(virQEMUDriverPtr driver,
virDomainObjPtr vm,
char **hostname)
{
qemuAgentPtr agent;
int ret = -1;
if (qemuDomainObjBeginAgentJob(driver, vm, QEMU_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(virQEMUDriverPtr driver,
virDomainObjPtr 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(driver, vm, QEMU_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;
virDomainNetDefPtr 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(driver, vm);
return ret;
}
static char *
qemuDomainGetHostname(virDomainPtr dom,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr 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(driver, vm, &hostname) < 0)
goto cleanup;
} else if (flags & VIR_DOMAIN_GET_HOSTNAME_LEASE) {
if (qemuDomainGetHostnameLease(driver, 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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
qemuAgentPtr 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(driver, vm, QEMU_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(virQEMUDriverPtr driver,
virDomainObjPtr vm,
long long seconds,
unsigned int nseconds,
bool rtcSync)
{
qemuAgentPtr agent;
int ret = -1;
if (qemuDomainObjBeginAgentJob(driver, vm, QEMU_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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
qemuDomainObjPrivatePtr priv;
virDomainObjPtr 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(driver, vm, seconds, nseconds, rtcSync) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(driver, vm, QEMU_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(driver, vm);
rv = qemuMonitorRTCResetReinjection(priv->mon);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
goto endjob;
if (rv < 0)
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainFSFreeze(virDomainPtr dom,
const char **mountpoints,
unsigned int nmountpoints,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
goto cleanup;
if (virDomainFSFreezeEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (qemuDomainObjBeginAgentJob(driver, vm, QEMU_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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr 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(driver, vm, QEMU_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)
{
virCheckFlags(0, -1);
if (virNodeGetFreePagesEnsureACL(conn) < 0)
return -1;
return virHostMemGetFreePages(npages, pages, startCell, cellCount, counts);
}
static char *
qemuConnectGetDomainCapabilities(virConnectPtr conn,
const char *emulatorbin,
const char *arch_str,
const char *machine,
const char *virttype_str,
unsigned int flags)
{
virQEMUDriverPtr 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(virQEMUDriverPtr driver G_GNUC_UNUSED,
virDomainObjPtr dom,
virTypedParamListPtr 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;
typedef virQEMUResctrlMonData *virQEMUResctrlMonDataPtr;
struct _virQEMUResctrlMonData {
char *name;
char *vcpus;
virResctrlMonitorStatsPtr *stats;
size_t nstats;
};
static void
qemuDomainFreeResctrlMonData(virQEMUResctrlMonDataPtr resdata)
{
size_t i = 0;
VIR_FREE(resdata->name);
VIR_FREE(resdata->vcpus);
for (i = 0; i < resdata->nstats; i++)
virResctrlMonitorStatsFree(resdata->stats[i]);
VIR_FREE(resdata->stats);
VIR_FREE(resdata);
}
/**
* qemuDomainGetResctrlMonData:
* @dom: Pointer for the domain that the resctrl monitors reside in
* @driver: Pointer to qemu driver
* @resdata: Pointer of virQEMUResctrlMonDataPtr pointer for receiving the
* virQEMUResctrlMonDataPtr array. Caller is responsible for
* freeing the array.
* @nresdata: Pointer of size_t to report the size virQEMUResctrlMonDataPtr
* 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(virQEMUDriverPtr driver,
virDomainObjPtr dom,
virQEMUResctrlMonDataPtr **resdata,
size_t *nresdata,
virResctrlMonitorType tag)
{
virDomainResctrlDefPtr resctrl = NULL;
virQEMUResctrlMonDataPtr 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 (virStringListLength((const char * const *)features) == 0)
return 0;
for (i = 0; i < dom->def->nresctrls; i++) {
resctrl = dom->def->resctrls[i];
for (j = 0; j < resctrl->nmonitors; j++) {
virDomainResctrlMonDefPtr domresmon = NULL;
virResctrlMonitorPtr 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;
if (VIR_APPEND_ELEMENT(*resdata, *nresdata, res) < 0)
goto error;
}
}
return 0;
error:
qemuDomainFreeResctrlMonData(res);
return -1;
}
static int
qemuDomainGetStatsMemoryBandwidth(virQEMUDriverPtr driver,
virDomainObjPtr dom,
virTypedParamListPtr params)
{
virQEMUResctrlMonDataPtr *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(virQEMUDriverPtr driver,
virDomainObjPtr dom,
virTypedParamListPtr params)
{
virQEMUResctrlMonDataPtr *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(virDomainObjPtr dom,
virTypedParamListPtr params)
{
qemuDomainObjPrivatePtr 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
qemuDomainGetStatsCpu(virQEMUDriverPtr driver,
virDomainObjPtr dom,
virTypedParamListPtr params,
unsigned int privflags G_GNUC_UNUSED)
{
if (qemuDomainGetStatsCpuCgroup(dom, params) < 0)
return -1;
if (qemuDomainGetStatsCpuCache(driver, dom, params) < 0)
return -1;
return 0;
}
static int
qemuDomainGetStatsMemory(virQEMUDriverPtr driver,
virDomainObjPtr dom,
virTypedParamListPtr params,
unsigned int privflags G_GNUC_UNUSED)
{
return qemuDomainGetStatsMemoryBandwidth(driver, dom, params);
}
static int
qemuDomainGetStatsBalloon(virQEMUDriverPtr driver,
virDomainObjPtr dom,
virTypedParamListPtr 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(driver, 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(virQEMUDriverPtr driver,
virDomainObjPtr dom,
virTypedParamListPtr params,
unsigned int privflags)
{
virDomainVcpuDefPtr vcpu;
qemuDomainVcpuPrivatePtr vcpupriv;
size_t i;
int ret = -1;
virVcpuInfoPtr cpuinfo = NULL;
g_autofree unsigned long long *cpuwait = 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));
if (HAVE_JOB(privflags) && virDomainObjIsActive(dom) &&
qemuDomainRefreshVcpuHalted(driver, dom, QEMU_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,
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;
/* 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(virQEMUDriverPtr driver G_GNUC_UNUSED,
virDomainObjPtr dom,
virTypedParamListPtr 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++) {
virDomainNetDefPtr 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(virQEMUDriverPtr driver,
virQEMUDriverConfigPtr cfg,
virDomainObjPtr dom,
virTypedParamListPtr params,
virStorageSourcePtr 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;
}
/**
* qemuDomainGetStatsOneBlockRefreshNamed:
* @src: disk source structure
* @alias: disk alias
* @stats: hash table containing stats for all disks
* @nodedata: reply containing 'query-named-block-nodes' data
*
* Refresh disk block stats data (qemuBlockStatsPtr) which are present only
* in the reply of 'query-named-block-nodes' in cases when the data was gathered
* by using query-block originally.
*/
static void
qemuDomainGetStatsOneBlockRefreshNamed(virStorageSourcePtr src,
const char *alias,
virHashTablePtr stats,
virHashTablePtr nodedata)
{
qemuBlockStatsPtr entry;
virJSONValuePtr data;
unsigned long long tmp;
if (!nodedata || !src->nodestorage)
return;
if (!(entry = virHashLookup(stats, alias)))
return;
if (!(data = virHashLookup(nodedata, src->nodestorage)))
return;
if (virJSONValueObjectGetNumberUlong(data, "write_threshold", &tmp) == 0)
entry->write_threshold = tmp;
}
static int
qemuDomainGetStatsOneBlock(virQEMUDriverPtr driver,
virQEMUDriverConfigPtr cfg,
virDomainObjPtr dom,
virTypedParamListPtr params,
const char *entryname,
virStorageSourcePtr src,
size_t block_idx,
virHashTablePtr 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,
virHashTablePtr stats,
size_t recordnr,
virTypedParamListPtr 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,
virHashTablePtr stats,
size_t idx,
virTypedParamListPtr 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(virDomainDiskDefPtr disk,
virStorageSourcePtr src,
size_t recordnr,
virTypedParamListPtr 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(virDomainDiskDefPtr disk,
virHashTablePtr stats,
virHashTablePtr nodestats,
virTypedParamListPtr params,
size_t *recordnr,
bool visitBacking,
virQEMUDriverPtr driver,
virQEMUDriverConfigPtr cfg,
virDomainObjPtr dom,
bool blockdev)
{
virStorageSourcePtr n;
const char *frontendalias;
const char *backendalias;
const char *backendstoragealias;
/*
* 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);
return qemuDomainGetStatsBlockExportHeader(disk, disk->src, *recordnr,
params);
}
for (n = disk->src; virStorageSourceIsBacking(n); n = n->backingStore) {
g_autofree char *alias = NULL;
/* for 'sd' disks we won't be displaying stats for the backing chain
* as we don't update the stats correctly */
if (blockdev && 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;
qemuDomainGetStatsOneBlockRefreshNamed(n, alias, stats, nodestats);
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;
}
return 0;
}
static int
qemuDomainGetStatsBlock(virQEMUDriverPtr driver,
virDomainObjPtr dom,
virTypedParamListPtr params,
unsigned int privflags)
{
size_t i;
int ret = -1;
int rc;
virHashTablePtr stats = NULL;
virHashTablePtr nodestats = NULL;
virJSONValuePtr nodedata = NULL;
qemuDomainObjPrivatePtr priv = dom->privateData;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
bool blockdev = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV);
bool fetchnodedata = virQEMUCapsGet(priv->qemuCaps,
QEMU_CAPS_QUERY_NAMED_BLOCK_NODES) && !blockdev;
int count_index = -1;
size_t visited = 0;
bool visitBacking = !!(privflags & QEMU_DOMAIN_STATS_BACKING);
if (HAVE_JOB(privflags) && virDomainObjIsActive(dom)) {
qemuDomainObjEnterMonitor(driver, dom);
rc = qemuMonitorGetAllBlockStatsInfo(priv->mon, &stats, visitBacking);
if (rc >= 0) {
if (blockdev)
rc = qemuMonitorBlockStatsUpdateCapacityBlockdev(priv->mon, stats);
else
ignore_value(qemuMonitorBlockStatsUpdateCapacity(priv->mon, stats,
visitBacking));
}
if (fetchnodedata)
nodedata = qemuMonitorQueryNamedBlockNodes(priv->mon);
if (qemuDomainObjExitMonitor(driver, dom) < 0)
goto cleanup;
/* failure to retrieve stats is fine at this point */
if (rc < 0 || (fetchnodedata && !nodedata))
virResetLastError();
}
if (nodedata &&
!(nodestats = qemuBlockGetNodeData(nodedata)))
goto cleanup;
/* 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)
goto cleanup;
for (i = 0; i < dom->def->ndisks; i++) {
if (qemuDomainGetStatsBlockExportDisk(dom->def->disks[i], stats, nodestats,
params, &visited,
visitBacking, driver, cfg, dom,
blockdev) < 0)
goto cleanup;
}
params->par[count_index].value.ui = visited;
ret = 0;
cleanup:
virHashFree(stats);
virHashFree(nodestats);
virJSONValueFree(nodedata);
return ret;
}
static int
qemuDomainGetStatsIOThread(virQEMUDriverPtr driver,
virDomainObjPtr dom,
virTypedParamListPtr params,
unsigned int privflags)
{
qemuDomainObjPrivatePtr priv = dom->privateData;
size_t i;
qemuMonitorIOThreadInfoPtr *iothreads = NULL;
int niothreads;
int ret = -1;
if (!HAVE_JOB(privflags) || !virDomainObjIsActive(dom))
return 0;
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_OBJECT_IOTHREAD))
return 0;
if ((niothreads = qemuDomainGetIOThreadsMon(driver, dom, &iothreads)) < 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(virPerfPtr perf,
virPerfEventType type,
virTypedParamListPtr 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(virQEMUDriverPtr driver G_GNUC_UNUSED,
virDomainObjPtr dom,
virTypedParamListPtr params,
unsigned int privflags G_GNUC_UNUSED)
{
size_t i;
qemuDomainObjPrivatePtr 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;
}
typedef int
(*qemuDomainGetStatsFunc)(virQEMUDriverPtr driver,
virDomainObjPtr dom,
virTypedParamListPtr list,
unsigned int flags);
struct qemuDomainGetStatsWorker {
qemuDomainGetStatsFunc func;
unsigned int stats;
bool monitor;
};
static struct qemuDomainGetStatsWorker qemuDomainGetStatsWorkers[] = {
{ qemuDomainGetStatsState, VIR_DOMAIN_STATS_STATE, false },
{ qemuDomainGetStatsCpu, VIR_DOMAIN_STATS_CPU_TOTAL, false },
{ qemuDomainGetStatsBalloon, VIR_DOMAIN_STATS_BALLOON, true },
{ qemuDomainGetStatsVcpu, VIR_DOMAIN_STATS_VCPU, true },
{ qemuDomainGetStatsInterface, VIR_DOMAIN_STATS_INTERFACE, false },
{ qemuDomainGetStatsBlock, VIR_DOMAIN_STATS_BLOCK, true },
{ qemuDomainGetStatsPerf, VIR_DOMAIN_STATS_PERF, false },
{ qemuDomainGetStatsIOThread, VIR_DOMAIN_STATS_IOTHREAD, true },
{ qemuDomainGetStatsMemory, VIR_DOMAIN_STATS_MEMORY, false },
{ NULL, 0, false }
};
static int
qemuDomainGetStatsCheckSupport(unsigned int *stats,
bool enforce)
{
unsigned int supportedstats = 0;
size_t i;
for (i = 0; qemuDomainGetStatsWorkers[i].func; i++)
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"),
*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,
virDomainObjPtr 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)
{
virQEMUDriverPtr driver = conn->privateData;
virErrorPtr orig_err = NULL;
virDomainObjPtr *vms = NULL;
virDomainObjPtr vm;
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 privflags = 0;
unsigned int domflags = 0;
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 (qemuDomainGetStatsCheckSupport(&stats, enforce) < 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);
if (qemuDomainGetStatsNeedMonitor(stats))
privflags |= QEMU_DOMAIN_STATS_HAVE_JOB;
for (i = 0; i < nvms; i++) {
virDomainStatsRecordPtr tmp = NULL;
domflags = 0;
vm = vms[i];
virObjectLock(vm);
if (HAVE_JOB(privflags)) {
int rv;
if (flags & VIR_CONNECT_GET_ALL_DOMAINS_STATS_NOWAIT)
rv = qemuDomainObjBeginJobNowait(driver, vm, QEMU_JOB_QUERY);
else
rv = qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY);
if (rv == 0)
domflags |= QEMU_DOMAIN_STATS_HAVE_JOB;
}
/* else: without a job it's still possible to gather some data */
if (flags & VIR_CONNECT_GET_ALL_DOMAINS_STATS_BACKING)
domflags |= QEMU_DOMAIN_STATS_BACKING;
if (qemuDomainGetStats(conn, vm, stats, &tmp, domflags) < 0) {
if (HAVE_JOB(domflags) && vm)
qemuDomainObjEndJob(driver, vm);
virObjectUnlock(vm);
goto cleanup;
}
if (tmp)
tmpstats[nstats++] = tmp;
if (HAVE_JOB(domflags))
qemuDomainObjEndJob(driver, vm);
virObjectUnlock(vm);
}
*retStats = tmpstats;
tmpstats = NULL;
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)
{
bool add = !(flags & VIR_NODE_ALLOC_PAGES_SET);
virCheckFlags(VIR_NODE_ALLOC_PAGES_SET, -1);
if (virNodeAllocPagesEnsureACL(conn) < 0)
return -1;
return virHostMemAllocPages(npages, pageSizes, pageCounts,
startCell, cellCount, add);
}
static int
qemuDomainGetFSInfoAgent(virQEMUDriverPtr driver,
virDomainObjPtr vm,
qemuAgentFSInfoPtr **info)
{
int ret = -1;
qemuAgentPtr agent;
if (qemuDomainObjBeginAgentJob(driver, vm,
QEMU_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(qemuAgentFSInfoPtr agent,
virDomainDefPtr 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);
ret->ndevAlias = agent->ndisks;
for (i = 0; i < ret->ndevAlias; i++) {
qemuAgentDiskInfoPtr agentdisk = agent->disks[i];
virDomainDiskDefPtr diskDef;
diskDef = virDomainDiskByAddress(vmdef,
&agentdisk->pci_controller,
agentdisk->bus,
agentdisk->target,
agentdisk->unit);
if (diskDef != NULL)
ret->devAlias[i] = g_strdup(diskDef->dst);
else if (agentdisk->devnode != NULL)
ret->devAlias[i] = g_strdup(agentdisk->devnode);
else
VIR_DEBUG("Missing devnode name for '%s'.", ret->mountpoint);
}
return ret;
}
/* Returns: 0 on success
* -1 otherwise
*/
static int
virDomainFSInfoFormat(qemuAgentFSInfoPtr *agentinfo,
int nagentinfo,
virDomainDefPtr vmdef,
virDomainFSInfoPtr **info)
{
int ret = -1;
virDomainFSInfoPtr *info_ret = NULL;
size_t i;
if (nagentinfo < 0)
return ret;
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:
for (i = 0; i < nagentinfo; i++) {
qemuAgentFSInfoFree(agentinfo[i]);
/* if there was an error, free any memory we've allocated for the
* return value */
if (info_ret)
virDomainFSInfoFree(info_ret[i]);
}
g_free(info_ret);
return ret;
}
static int
qemuDomainGetFSInfo(virDomainPtr dom,
virDomainFSInfoPtr **info,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
qemuAgentFSInfoPtr *agentinfo = NULL;
int ret = -1;
int nfs;
virCheckFlags(0, ret);
if (!(vm = qemuDomainObjFromDomain(dom)))
return ret;
if (virDomainGetFSInfoEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if ((nfs = qemuDomainGetFSInfoAgent(driver, vm, &agentinfo)) < 0)
goto cleanup;
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
ret = virDomainFSInfoFormat(agentinfo, nfs, vm->def, info);
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
g_free(agentinfo);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainInterfaceAddresses(virDomainPtr dom,
virDomainInterfacePtr **ifaces,
unsigned int source,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
qemuAgentPtr 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(driver, vm, QEMU_AGENT_JOB_QUERY) < 0)
goto cleanup;
if (!qemuDomainAgentAvailable(vm, true))
goto endjob;
agent = qemuDomainObjEnterAgent(vm);
ret = qemuAgentGetInterfaces(agent, ifaces);
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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
qemuAgentPtr 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(driver, vm, QEMU_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;
}
static int
qemuDomainRenameCallback(virDomainObjPtr vm,
const char *new_name,
unsigned int flags,
void *opaque)
{
virQEMUDriverPtr driver = opaque;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virObjectEventPtr event_new = NULL;
virObjectEventPtr event_old = NULL;
int ret = -1;
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;
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)))
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)))
goto cleanup;
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);
goto cleanup;
}
}
event_old = virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_UNDEFINED,
VIR_DOMAIN_EVENT_UNDEFINED_RENAMED);
/* Switch name in domain definition. */
old_dom_name = vm->def->name;
vm->def->name = new_dom_name;
new_dom_name = NULL;
if (virDomainDefSave(vm->def, driver->xmlopt, cfg->configDir) < 0)
goto rollback;
if (virFileExists(old_dom_cfg_file) &&
unlink(old_dom_cfg_file) < 0) {
virReportSystemError(errno,
_("cannot remove old domain config file %s"),
old_dom_cfg_file);
goto rollback;
}
if (vm->autostart) {
if (virFileIsLink(old_dom_autostart_link) &&
unlink(old_dom_autostart_link) < 0) {
virReportSystemError(errno,
_("Failed to delete symlink '%s'"),
old_dom_autostart_link);
goto rollback;
}
}
event_new = virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_DEFINED,
VIR_DOMAIN_EVENT_DEFINED_RENAMED);
ret = 0;
cleanup:
virObjectEventStateQueue(driver->domainEventState, event_old);
virObjectEventStateQueue(driver->domainEventState, event_new);
return ret;
rollback:
if (old_dom_name) {
new_dom_name = vm->def->name;
vm->def->name = old_dom_name;
old_dom_name = NULL;
}
if (virFileExists(new_dom_cfg_file))
unlink(new_dom_cfg_file);
if (vm->autostart &&
virFileExists(new_dom_autostart_link))
unlink(new_dom_autostart_link);
goto cleanup;
}
static int qemuDomainRename(virDomainPtr dom,
const char *new_name,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr 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(driver, vm, QEMU_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 (virDomainSnapshotObjListNum(vm->snapshots, NULL, 0) > 0) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cannot rename domain with snapshots"));
goto endjob;
}
if (virDomainListCheckpoints(vm->checkpoints, NULL, dom, NULL, flags) > 0) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cannot rename domain with checkpoints"));
goto endjob;
}
if (virDomainObjListRename(driver->domains, vm, new_name, flags,
qemuDomainRenameCallback, driver) < 0)
goto endjob;
/* Success, domain has been renamed. */
ret = 0;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainGetGuestVcpusParams(virTypedParameterPtr *params,
unsigned int *nparams,
qemuAgentCPUInfoPtr info,
int ninfo)
{
virTypedParameterPtr par = NULL;
int npar = 0;
int maxpar = 0;
virBitmapPtr vcpus = virBitmapNew(QEMU_GUEST_VCPU_MAX_ID);
virBitmapPtr online = virBitmapNew(QEMU_GUEST_VCPU_MAX_ID);
virBitmapPtr 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
*params = par;
*nparams = npar;
par = NULL;
ret = 0;
cleanup:
virBitmapFree(vcpus);
virBitmapFree(online);
virBitmapFree(offlinable);
virTypedParamsFree(par, npar);
return ret;
}
static int
qemuDomainGetGuestVcpus(virDomainPtr dom,
virTypedParameterPtr *params,
unsigned int *nparams,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
qemuAgentPtr agent;
qemuAgentCPUInfoPtr 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(driver, vm, QEMU_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)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
virBitmapPtr map = NULL;
qemuAgentCPUInfoPtr info = NULL;
qemuAgentPtr 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(driver, vm, QEMU_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);
virBitmapFree(map);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainSetVcpu(virDomainPtr dom,
const char *cpumap,
int state,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
virDomainDefPtr def = NULL;
virDomainDefPtr persistentDef = NULL;
virBitmapPtr 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(driver, vm, QEMU_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(driver, vm);
cleanup:
virBitmapFree(map);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainSetBlockThreshold(virDomainPtr dom,
const char *dev,
unsigned long long threshold,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
qemuDomainObjPrivatePtr priv;
virDomainObjPtr vm = NULL;
virStorageSourcePtr 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(driver, vm, QEMU_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)))
goto endjob;
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV) &&
!src->nodestorage &&
qemuBlockNodeNamesDetect(driver, vm, QEMU_ASYNC_JOB_NONE) < 0)
goto endjob;
if (!src->nodestorage) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("threshold currently can't be set for block device '%s'"),
dev);
goto endjob;
}
nodename = g_strdup(src->nodestorage);
qemuDomainObjEnterMonitor(driver, vm);
rc = qemuMonitorSetBlockThreshold(priv->mon, nodename, threshold);
if (qemuDomainObjExitMonitor(driver, vm) < 0 || rc < 0)
goto endjob;
ret = 0;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static void
qemuDomainModifyLifecycleAction(virDomainDefPtr 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
qemuDomainSetLifecycleAction(virDomainPtr dom,
unsigned int type,
unsigned int action,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
qemuDomainObjPrivatePtr priv;
virDomainObjPtr vm = NULL;
virDomainDefPtr def = NULL;
virDomainDefPtr persistentDef = NULL;
int ret = -1;
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(driver, vm, QEMU_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
if (def) {
if (priv->allowReboot == VIR_TRISTATE_BOOL_NO) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("cannot update lifecycle action because QEMU "
"was started with -no-reboot option"));
goto endjob;
}
qemuDomainModifyLifecycleAction(def, type, action);
if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
goto endjob;
}
if (persistentDef) {
qemuDomainModifyLifecycleAction(persistentDef, type, action);
if (virDomainDefSave(persistentDef, driver->xmlopt,
cfg->configDir) < 0)
goto endjob;
}
ret = 0;
endjob:
qemuDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuGetSEVInfoToParams(virQEMUCapsPtr qemuCaps,
virTypedParameterPtr *params,
int *nparams,
unsigned int flags)
{
int maxpar = 0;
int n = 0;
virSEVCapabilityPtr 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 (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;
*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)
{
virQEMUDriverPtr 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
qemuDomainGetSEVMeasurement(virQEMUDriverPtr driver,
virDomainObjPtr vm,
virTypedParameterPtr *params,
int *nparams,
unsigned int flags)
{
int ret = -1;
g_autofree char *tmp = NULL;
int maxpar = 0;
virCheckFlags(VIR_TYPED_PARAM_STRING_OKAY, -1);
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY) < 0)
return -1;
qemuDomainObjEnterMonitor(driver, vm);
tmp = qemuMonitorGetSEVMeasurement(QEMU_DOMAIN_PRIVATE(vm)->mon);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
goto endjob;
if (!tmp)
goto endjob;
if (virTypedParamsAddString(params, nparams, &maxpar,
VIR_DOMAIN_LAUNCH_SECURITY_SEV_MEASUREMENT,
tmp) < 0)
goto endjob;
ret = 0;
endjob:
qemuDomainObjEndJob(driver, vm);
return ret;
}
static int
qemuDomainGetLaunchSecurityInfo(virDomainPtr domain,
virTypedParameterPtr *params,
int *nparams,
unsigned int flags)
{
virQEMUDriverPtr driver = domain->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
if (!(vm = qemuDomainObjFromDomain(domain)))
goto cleanup;
if (virDomainGetLaunchSecurityInfoEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
if (vm->def->sev) {
if (qemuDomainGetSEVMeasurement(driver, vm, params, nparams, flags) < 0)
goto cleanup;
}
ret = 0;
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;
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
qemuAgentFSInfoFormatParams(qemuAgentFSInfoPtr *fsinfo,
int nfs,
virDomainDefPtr 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++) {
virDomainDiskDefPtr diskdef = NULL;
qemuAgentDiskInfoPtr d = fsinfo[i]->disks[j];
/* match the disk to the target in the vm definition */
diskdef = virDomainDiskByAddress(vmdef,
&d->pci_controller,
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 int
qemuDomainGetGuestInfo(virDomainPtr dom,
unsigned int types,
virTypedParameterPtr *params,
int *nparams,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
qemuAgentPtr 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;
qemuAgentFSInfoPtr *agentfsinfo = NULL;
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(driver, vm,
QEMU_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;
} else if (rc >= 0) {
nfs = rc;
}
}
ret = 0;
exitagent:
qemuDomainObjExitAgent(vm, agent);
endagentjob:
qemuDomainObjEndAgentJob(vm);
if (nfs > 0) {
if (qemuDomainObjBeginJob(driver, vm, QEMU_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 */
qemuAgentFSInfoFormatParams(agentfsinfo, nfs, vm->def, params, nparams, &maxparams);
endjob:
qemuDomainObjEndJob(driver, vm);
}
cleanup:
for (i = 0; i < nfs; i++)
qemuAgentFSInfoFree(agentfsinfo[i]);
g_free(agentfsinfo);
virDomainObjEndAPI(&vm);
return ret;
}
static int
qemuDomainAgentSetResponseTimeout(virDomainPtr dom,
int timeout,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
virDomainObjPtr 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;
cfg = virQEMUDriverGetConfig(driver);
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;
if (virDomainObjIsActive(vm) &&
virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
goto cleanup;
ret = 0;
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 */
.domainRestore = qemuDomainRestore, /* 0.2.0 */
.domainRestoreFlags = qemuDomainRestoreFlags, /* 0.9.4 */
.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 */
.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 */
.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 */
};
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;
}
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