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libvirt/src/libxl/libxl_driver.c
Stefan Bader 0e0c1a7489 libxl: Use id from virDomainObj inside the driver 
There is a domain id in the virDomain structure as well as in the
virDomainObj structure. While the former can become stale the latter
is kept up to date. So it is safer to always (virDomainObjPtr)->def->id
internally.

This will fix issues seen when managing Xen guests through libvirt from
virt-manager (not being able to get domain info after define or reboot).
This was caused both though libxlDomainGetInfo() only but there were
a lot of places that might potentially cause issues, too.

Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
2014-04-03 17:27:46 +02:00

4417 lines
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/*
* libxl_driver.c: core driver methods for managing libxenlight domains
*
* Copyright (C) 2006-2014 Red Hat, Inc.
* Copyright (C) 2011-2014 SUSE LINUX Products GmbH, Nuernberg, Germany.
* Copyright (C) 2011 Univention GmbH.
*
* 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/>.
*
* Authors:
* Jim Fehlig <jfehlig@novell.com>
* Markus Groß <gross@univention.de>
* Daniel P. Berrange <berrange@redhat.com>
*/
#include <config.h>
#include <math.h>
#include <libxl.h>
#include <libxl_utils.h>
#include <fcntl.h>
#include <regex.h>
#include "internal.h"
#include "virlog.h"
#include "virerror.h"
#include "virconf.h"
#include "datatypes.h"
#include "virfile.h"
#include "viralloc.h"
#include "viruuid.h"
#include "vircommand.h"
#include "libxl_domain.h"
#include "libxl_driver.h"
#include "libxl_conf.h"
#include "xen_xm.h"
#include "xen_sxpr.h"
#include "virtypedparam.h"
#include "viruri.h"
#include "virstring.h"
#include "virsysinfo.h"
#include "viraccessapicheck.h"
#include "viratomic.h"
#include "virhostdev.h"
#define VIR_FROM_THIS VIR_FROM_LIBXL
VIR_LOG_INIT("libxl.libxl_driver");
#define LIBXL_DOM_REQ_POWEROFF 0
#define LIBXL_DOM_REQ_REBOOT 1
#define LIBXL_DOM_REQ_SUSPEND 2
#define LIBXL_DOM_REQ_CRASH 3
#define LIBXL_DOM_REQ_HALT 4
#define LIBXL_CONFIG_FORMAT_XM "xen-xm"
#define LIBXL_CONFIG_FORMAT_SEXPR "xen-sxpr"
#define HYPERVISOR_CAPABILITIES "/proc/xen/capabilities"
/* Number of Xen scheduler parameters */
#define XEN_SCHED_CREDIT_NPARAM 2
static libxlDriverPrivatePtr libxl_driver = NULL;
/* Function declarations */
static int
libxlDomainManagedSaveLoad(virDomainObjPtr vm,
void *opaque);
/* Function definitions */
static virDomainObjPtr
libxlDomObjFromDomain(virDomainPtr dom)
{
virDomainObjPtr vm;
libxlDriverPrivatePtr driver = dom->conn->privateData;
char uuidstr[VIR_UUID_STRING_BUFLEN];
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
if (!vm) {
virUUIDFormat(dom->uuid, uuidstr);
virReportError(VIR_ERR_NO_DOMAIN,
_("no domain with matching uuid '%s' (%s)"),
uuidstr, dom->name);
return NULL;
}
return vm;
}
static int
libxlAutostartDomain(virDomainObjPtr vm,
void *opaque)
{
libxlDriverPrivatePtr driver = opaque;
virErrorPtr err;
int ret = -1;
virObjectLock(vm);
virResetLastError();
if (vm->autostart && !virDomainObjIsActive(vm) &&
libxlDomainStart(driver, vm, false, -1) < 0) {
err = virGetLastError();
VIR_ERROR(_("Failed to autostart VM '%s': %s"),
vm->def->name,
err ? err->message : _("unknown error"));
goto cleanup;
}
ret = 0;
cleanup:
virObjectUnlock(vm);
return ret;
}
/*
* Reconnect to running domains that were previously started/created
* with libxenlight driver.
*/
static int
libxlReconnectDomain(virDomainObjPtr vm,
void *opaque)
{
libxlDriverPrivatePtr driver = opaque;
libxlDomainObjPrivatePtr priv = vm->privateData;
int rc;
libxl_dominfo d_info;
int len;
uint8_t *data = NULL;
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
virObjectLock(vm);
libxlDomainObjPrivateInitCtx(vm);
/* Does domain still exist? */
rc = libxl_domain_info(priv->ctx, &d_info, vm->def->id);
if (rc == ERROR_INVAL) {
goto out;
} else if (rc != 0) {
VIR_DEBUG("libxl_domain_info failed (code %d), ignoring domain %d",
rc, vm->def->id);
goto out;
}
/* Is this a domain that was under libvirt control? */
if (libxl_userdata_retrieve(priv->ctx, vm->def->id,
"libvirt-xml", &data, &len)) {
VIR_DEBUG("libxl_userdata_retrieve failed, ignoring domain %d", vm->def->id);
goto out;
}
/* Update domid in case it changed (e.g. reboot) while we were gone? */
vm->def->id = d_info.domid;
/* Update hostdev state */
if (virHostdevUpdateDomainActiveDevices(hostdev_mgr, LIBXL_DRIVER_NAME,
vm->def, VIR_HOSTDEV_SP_PCI) < 0)
goto out;
virDomainObjSetState(vm, VIR_DOMAIN_RUNNING, VIR_DOMAIN_RUNNING_UNKNOWN);
if (virAtomicIntInc(&driver->nactive) == 1 && driver->inhibitCallback)
driver->inhibitCallback(true, driver->inhibitOpaque);
/* Re-register domain death et. al. events */
libxlDomainEventsRegister(driver, vm);
virObjectUnlock(vm);
return 0;
out:
libxlDomainCleanup(driver, vm, VIR_DOMAIN_SHUTOFF_UNKNOWN);
if (!vm->persistent)
virDomainObjListRemoveLocked(driver->domains, vm);
else
virObjectUnlock(vm);
return -1;
}
static void
libxlReconnectDomains(libxlDriverPrivatePtr driver)
{
virDomainObjListForEach(driver->domains, libxlReconnectDomain, driver);
}
static int
libxlStateCleanup(void)
{
if (!libxl_driver)
return -1;
virObjectUnref(libxl_driver->hostdevMgr);
virObjectUnref(libxl_driver->config);
virObjectUnref(libxl_driver->xmlopt);
virObjectUnref(libxl_driver->domains);
virObjectUnref(libxl_driver->reservedVNCPorts);
virObjectEventStateFree(libxl_driver->domainEventState);
virSysinfoDefFree(libxl_driver->hostsysinfo);
virMutexDestroy(&libxl_driver->lock);
VIR_FREE(libxl_driver);
return 0;
}
static bool
libxlDriverShouldLoad(bool privileged)
{
bool ret = false;
virCommandPtr cmd;
int status;
char *output = NULL;
/* Don't load if non-root */
if (!privileged) {
VIR_INFO("Not running privileged, disabling libxenlight driver");
return ret;
}
if (!virFileExists(HYPERVISOR_CAPABILITIES)) {
VIR_INFO("Disabling driver as " HYPERVISOR_CAPABILITIES
" does not exist");
return false;
}
/*
* Don't load if not running on a Xen control domain (dom0). It is not
* sufficient to check for the file to exist as any guest can mount
* xenfs to /proc/xen.
*/
status = virFileReadAll(HYPERVISOR_CAPABILITIES, 10, &output);
if (status >= 0) {
status = strncmp(output, "control_d", 9);
}
VIR_FREE(output);
if (status) {
VIR_INFO("No Xen capabilities detected, probably not running "
"in a Xen Dom0. Disabling libxenlight driver");
return ret;
}
/* Don't load if legacy xen toolstack (xend) is in use */
cmd = virCommandNewArgList("/usr/sbin/xend", "status", NULL);
if (virCommandRun(cmd, &status) == 0 && status == 0) {
VIR_INFO("Legacy xen tool stack seems to be in use, disabling "
"libxenlight driver.");
} else {
ret = true;
}
virCommandFree(cmd);
return ret;
}
static int
libxlStateInitialize(bool privileged,
virStateInhibitCallback callback ATTRIBUTE_UNUSED,
void *opaque ATTRIBUTE_UNUSED)
{
libxlDriverConfigPtr cfg;
char ebuf[1024];
if (!libxlDriverShouldLoad(privileged))
return 0;
if (VIR_ALLOC(libxl_driver) < 0)
return -1;
if (virMutexInit(&libxl_driver->lock) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("cannot initialize mutex"));
VIR_FREE(libxl_driver);
return -1;
}
/* Allocate bitmap for vnc port reservation */
if (!(libxl_driver->reservedVNCPorts =
virPortAllocatorNew(_("VNC"),
LIBXL_VNC_PORT_MIN,
LIBXL_VNC_PORT_MAX)))
goto error;
if (!(libxl_driver->domains = virDomainObjListNew()))
goto error;
if (!(libxl_driver->hostdevMgr = virHostdevManagerGetDefault()))
goto error;
if (!(cfg = libxlDriverConfigNew()))
goto error;
libxl_driver->config = cfg;
if (virFileMakePath(cfg->stateDir) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to create state dir '%s': %s"),
cfg->stateDir,
virStrerror(errno, ebuf, sizeof(ebuf)));
goto error;
}
if (virFileMakePath(cfg->libDir) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to create lib dir '%s': %s"),
cfg->libDir,
virStrerror(errno, ebuf, sizeof(ebuf)));
goto error;
}
if (virFileMakePath(cfg->saveDir) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to create save dir '%s': %s"),
cfg->saveDir,
virStrerror(errno, ebuf, sizeof(ebuf)));
goto error;
}
if (virFileMakePath(cfg->autoDumpDir) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to create dump dir '%s': %s"),
cfg->autoDumpDir,
virStrerror(errno, ebuf, sizeof(ebuf)));
goto error;
}
/* read the host sysinfo */
libxl_driver->hostsysinfo = virSysinfoRead();
libxl_driver->domainEventState = virObjectEventStateNew();
if (!libxl_driver->domainEventState)
goto error;
if ((cfg->caps = libxlMakeCapabilities(cfg->ctx)) == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("cannot create capabilities for libxenlight"));
goto error;
}
if (!(libxl_driver->xmlopt = virDomainXMLOptionNew(&libxlDomainDefParserConfig,
&libxlDomainXMLPrivateDataCallbacks,
NULL)))
goto error;
/* Load running domains first. */
if (virDomainObjListLoadAllConfigs(libxl_driver->domains,
cfg->stateDir,
cfg->autostartDir,
1,
cfg->caps,
libxl_driver->xmlopt,
1 << VIR_DOMAIN_VIRT_XEN,
NULL, NULL) < 0)
goto error;
libxlReconnectDomains(libxl_driver);
/* Then inactive persistent configs */
if (virDomainObjListLoadAllConfigs(libxl_driver->domains,
cfg->configDir,
cfg->autostartDir,
0,
cfg->caps,
libxl_driver->xmlopt,
1 << VIR_DOMAIN_VIRT_XEN,
NULL, NULL) < 0)
goto error;
virDomainObjListForEach(libxl_driver->domains, libxlDomainManagedSaveLoad,
libxl_driver);
return 0;
error:
libxlStateCleanup();
return -1;
}
static void
libxlStateAutoStart(void)
{
if (!libxl_driver)
return;
virDomainObjListForEach(libxl_driver->domains, libxlAutostartDomain,
libxl_driver);
}
static int
libxlStateReload(void)
{
libxlDriverConfigPtr cfg;
if (!libxl_driver)
return 0;
cfg = libxlDriverConfigGet(libxl_driver);
virDomainObjListLoadAllConfigs(libxl_driver->domains,
cfg->configDir,
cfg->autostartDir,
1,
cfg->caps,
libxl_driver->xmlopt,
1 << VIR_DOMAIN_VIRT_XEN,
NULL, libxl_driver);
virDomainObjListForEach(libxl_driver->domains, libxlAutostartDomain,
libxl_driver);
virObjectUnref(cfg);
return 0;
}
static virDrvOpenStatus
libxlConnectOpen(virConnectPtr conn,
virConnectAuthPtr auth ATTRIBUTE_UNUSED,
unsigned int flags)
{
virCheckFlags(VIR_CONNECT_RO, VIR_DRV_OPEN_ERROR);
if (conn->uri == NULL) {
if (libxl_driver == NULL)
return VIR_DRV_OPEN_DECLINED;
if (!(conn->uri = virURIParse("xen:///")))
return VIR_DRV_OPEN_ERROR;
} else {
/* Only xen scheme */
if (conn->uri->scheme == NULL || STRNEQ(conn->uri->scheme, "xen"))
return VIR_DRV_OPEN_DECLINED;
/* If server name is given, its for remote driver */
if (conn->uri->server != NULL)
return VIR_DRV_OPEN_DECLINED;
/* Error if xen or libxl scheme specified but driver not started. */
if (libxl_driver == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("libxenlight state driver is not active"));
return VIR_DRV_OPEN_ERROR;
}
/* /session isn't supported in libxenlight */
if (conn->uri->path &&
STRNEQ(conn->uri->path, "") &&
STRNEQ(conn->uri->path, "/") &&
STRNEQ(conn->uri->path, "/system")) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unexpected Xen URI path '%s', try xen:///"),
NULLSTR(conn->uri->path));
return VIR_DRV_OPEN_ERROR;
}
}
if (virConnectOpenEnsureACL(conn) < 0)
return VIR_DRV_OPEN_ERROR;
conn->privateData = libxl_driver;
return VIR_DRV_OPEN_SUCCESS;
};
static int
libxlConnectClose(virConnectPtr conn ATTRIBUTE_UNUSED)
{
conn->privateData = NULL;
return 0;
}
static const char *
libxlConnectGetType(virConnectPtr conn)
{
if (virConnectGetTypeEnsureACL(conn) < 0)
return NULL;
return "Xen";
}
static int
libxlConnectGetVersion(virConnectPtr conn, unsigned long *version)
{
libxlDriverPrivatePtr driver = conn->privateData;
libxlDriverConfigPtr cfg;
if (virConnectGetVersionEnsureACL(conn) < 0)
return 0;
cfg = libxlDriverConfigGet(driver);
*version = cfg->version;
virObjectUnref(cfg);
return 0;
}
static char *libxlConnectGetHostname(virConnectPtr conn)
{
if (virConnectGetHostnameEnsureACL(conn) < 0)
return NULL;
return virGetHostname();
}
static char *
libxlConnectGetSysinfo(virConnectPtr conn, unsigned int flags)
{
libxlDriverPrivatePtr driver = conn->privateData;
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;
if (virBufferError(&buf)) {
virReportOOMError();
return NULL;
}
return virBufferContentAndReset(&buf);
}
static int
libxlConnectGetMaxVcpus(virConnectPtr conn, const char *type ATTRIBUTE_UNUSED)
{
int ret;
libxlDriverPrivatePtr driver = conn->privateData;
libxlDriverConfigPtr cfg;
if (virConnectGetMaxVcpusEnsureACL(conn) < 0)
return -1;
cfg = libxlDriverConfigGet(driver);
ret = libxl_get_max_cpus(cfg->ctx);
/* On failure, libxl_get_max_cpus() will return ERROR_FAIL from Xen 4.4
* onward, but it ever returning 0 is obviously wrong too (and it is
* what happens, on failure, on Xen 4.3 and earlier). Therefore, a 'less
* or equal' is the catchall we want. */
if (ret <= 0)
ret = -1;
virObjectUnref(cfg);
return ret;
}
static int
libxlNodeGetInfo(virConnectPtr conn, virNodeInfoPtr info)
{
if (virNodeGetInfoEnsureACL(conn) < 0)
return -1;
return libxlDriverNodeGetInfo(conn->privateData, info);
}
static char *
libxlConnectGetCapabilities(virConnectPtr conn)
{
libxlDriverPrivatePtr driver = conn->privateData;
char *xml;
libxlDriverConfigPtr cfg;
if (virConnectGetCapabilitiesEnsureACL(conn) < 0)
return NULL;
cfg = libxlDriverConfigGet(driver);
if ((xml = virCapabilitiesFormatXML(cfg->caps)) == NULL)
virReportOOMError();
virObjectUnref(cfg);
return xml;
}
static int
libxlConnectListDomains(virConnectPtr conn, int *ids, int nids)
{
libxlDriverPrivatePtr driver = conn->privateData;
int n;
if (virConnectListDomainsEnsureACL(conn) < 0)
return -1;
n = virDomainObjListGetActiveIDs(driver->domains, ids, nids,
virConnectListDomainsCheckACL, conn);
return n;
}
static int
libxlConnectNumOfDomains(virConnectPtr conn)
{
libxlDriverPrivatePtr driver = conn->privateData;
int n;
if (virConnectNumOfDomainsEnsureACL(conn) < 0)
return -1;
n = virDomainObjListNumOfDomains(driver->domains, true,
virConnectNumOfDomainsCheckACL, conn);
return n;
}
static virDomainPtr
libxlDomainCreateXML(virConnectPtr conn, const char *xml,
unsigned int flags)
{
libxlDriverPrivatePtr driver = conn->privateData;
virDomainDefPtr def;
virDomainObjPtr vm = NULL;
virDomainPtr dom = NULL;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virCheckFlags(VIR_DOMAIN_START_PAUSED, NULL);
if (!(def = virDomainDefParseString(xml, cfg->caps, driver->xmlopt,
1 << VIR_DOMAIN_VIRT_XEN,
VIR_DOMAIN_XML_INACTIVE)))
goto cleanup;
if (virDomainCreateXMLEnsureACL(conn, def) < 0)
goto cleanup;
if (!(vm = virDomainObjListAdd(driver->domains, def,
driver->xmlopt,
VIR_DOMAIN_OBJ_LIST_ADD_CHECK_LIVE,
NULL)))
goto cleanup;
def = NULL;
if (libxlDomainStart(driver, vm, (flags & VIR_DOMAIN_START_PAUSED) != 0,
-1) < 0) {
virDomainObjListRemove(driver->domains, vm);
vm = NULL;
goto cleanup;
}
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom)
dom->id = vm->def->id;
cleanup:
virDomainDefFree(def);
if (vm)
virObjectUnlock(vm);
virObjectUnref(cfg);
return dom;
}
static virDomainPtr
libxlDomainLookupByID(virConnectPtr conn, int id)
{
libxlDriverPrivatePtr driver = conn->privateData;
virDomainObjPtr vm;
virDomainPtr dom = NULL;
vm = virDomainObjListFindByID(driver->domains, id);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, NULL);
goto cleanup;
}
if (virDomainLookupByIDEnsureACL(conn, vm->def) < 0)
goto cleanup;
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom)
dom->id = vm->def->id;
cleanup:
if (vm)
virObjectUnlock(vm);
return dom;
}
static virDomainPtr
libxlDomainLookupByUUID(virConnectPtr conn, const unsigned char *uuid)
{
libxlDriverPrivatePtr driver = conn->privateData;
virDomainObjPtr vm;
virDomainPtr dom = NULL;
vm = virDomainObjListFindByUUID(driver->domains, uuid);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, NULL);
goto cleanup;
}
if (virDomainLookupByUUIDEnsureACL(conn, vm->def) < 0)
goto cleanup;
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom)
dom->id = vm->def->id;
cleanup:
if (vm)
virObjectUnlock(vm);
return dom;
}
static virDomainPtr
libxlDomainLookupByName(virConnectPtr conn, const char *name)
{
libxlDriverPrivatePtr driver = conn->privateData;
virDomainObjPtr vm;
virDomainPtr dom = NULL;
vm = virDomainObjListFindByName(driver->domains, name);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, NULL);
goto cleanup;
}
if (virDomainLookupByNameEnsureACL(conn, vm->def) < 0)
goto cleanup;
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom)
dom->id = vm->def->id;
cleanup:
if (vm)
virObjectUnlock(vm);
return dom;
}
static int
libxlDomainSuspend(virDomainPtr dom)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
libxlDomainObjPrivatePtr priv;
virObjectEventPtr event = NULL;
int ret = -1;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainSuspendEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("Domain is not running"));
goto endjob;
}
priv = vm->privateData;
if (virDomainObjGetState(vm, NULL) != VIR_DOMAIN_PAUSED) {
if (libxl_domain_pause(priv->ctx, vm->def->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to suspend domain '%d' with libxenlight"),
vm->def->id);
goto endjob;
}
virDomainObjSetState(vm, VIR_DOMAIN_PAUSED, VIR_DOMAIN_PAUSED_USER);
event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_SUSPENDED,
VIR_DOMAIN_EVENT_SUSPENDED_PAUSED);
}
if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm) < 0)
goto endjob;
ret = 0;
endjob:
if (!libxlDomainObjEndJob(driver, vm))
vm = NULL;
cleanup:
if (vm)
virObjectUnlock(vm);
if (event)
libxlDomainEventQueue(driver, event);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainResume(virDomainPtr dom)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
libxlDomainObjPrivatePtr priv;
virObjectEventPtr event = NULL;
int ret = -1;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainResumeEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("Domain is not running"));
goto endjob;
}
priv = vm->privateData;
if (virDomainObjGetState(vm, NULL) == VIR_DOMAIN_PAUSED) {
if (libxl_domain_unpause(priv->ctx, vm->def->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to resume domain '%d' with libxenlight"),
vm->def->id);
goto endjob;
}
virDomainObjSetState(vm, VIR_DOMAIN_RUNNING,
VIR_DOMAIN_RUNNING_UNPAUSED);
event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_RESUMED,
VIR_DOMAIN_EVENT_RESUMED_UNPAUSED);
}
if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm) < 0)
goto endjob;
ret = 0;
endjob:
if (!libxlDomainObjEndJob(driver, vm))
vm = NULL;
cleanup:
if (vm)
virObjectUnlock(vm);
if (event)
libxlDomainEventQueue(driver, event);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainShutdownFlags(virDomainPtr dom, unsigned int flags)
{
virDomainObjPtr vm;
int ret = -1;
libxlDomainObjPrivatePtr priv;
virCheckFlags(0, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainShutdownFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("Domain is not running"));
goto cleanup;
}
priv = vm->privateData;
if (libxl_domain_shutdown(priv->ctx, vm->def->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to shutdown domain '%d' with libxenlight"),
vm->def->id);
goto cleanup;
}
/* vm is marked shutoff (or removed from domains list if not persistent)
* in shutdown event handler.
*/
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainShutdown(virDomainPtr dom)
{
return libxlDomainShutdownFlags(dom, 0);
}
static int
libxlDomainReboot(virDomainPtr dom, unsigned int flags)
{
virDomainObjPtr vm;
int ret = -1;
libxlDomainObjPrivatePtr priv;
virCheckFlags(0, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainRebootEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("Domain is not running"));
goto cleanup;
}
priv = vm->privateData;
if (libxl_domain_reboot(priv->ctx, vm->def->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to reboot domain '%d' with libxenlight"),
vm->def->id);
goto cleanup;
}
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainDestroyFlags(virDomainPtr dom,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
virObjectEventPtr event = NULL;
libxlDomainObjPrivatePtr priv;
virCheckFlags(0, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainDestroyFlagsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("Domain is not running"));
goto cleanup;
}
event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_DESTROYED);
priv = vm->privateData;
if (libxl_domain_destroy(priv->ctx, vm->def->id, NULL) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to destroy domain '%d'"), vm->def->id);
goto cleanup;
}
if (libxlDomainCleanupJob(driver, vm, VIR_DOMAIN_SHUTOFF_DESTROYED)) {
if (!vm->persistent) {
virDomainObjListRemove(driver->domains, vm);
vm = NULL;
}
}
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
if (event)
libxlDomainEventQueue(driver, event);
return ret;
}
static int
libxlDomainDestroy(virDomainPtr dom)
{
return libxlDomainDestroyFlags(dom, 0);
}
static char *
libxlDomainGetOSType(virDomainPtr dom)
{
virDomainObjPtr vm;
char *type = NULL;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetOSTypeEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (VIR_STRDUP(type, vm->def->os.type) < 0)
goto cleanup;
cleanup:
if (vm)
virObjectUnlock(vm);
return type;
}
static unsigned long long
libxlDomainGetMaxMemory(virDomainPtr dom)
{
virDomainObjPtr vm;
unsigned long long ret = 0;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetMaxMemoryEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
ret = vm->def->mem.max_balloon;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainSetMemoryFlags(virDomainPtr dom, unsigned long newmem,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
libxlDomainObjPrivatePtr priv;
virDomainObjPtr vm;
virDomainDefPtr persistentDef = NULL;
bool isActive;
int ret = -1;
virCheckFlags(VIR_DOMAIN_MEM_LIVE |
VIR_DOMAIN_MEM_CONFIG |
VIR_DOMAIN_MEM_MAXIMUM, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainSetMemoryFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
isActive = virDomainObjIsActive(vm);
if (flags == VIR_DOMAIN_MEM_CURRENT) {
if (isActive)
flags = VIR_DOMAIN_MEM_LIVE;
else
flags = VIR_DOMAIN_MEM_CONFIG;
}
if (flags == VIR_DOMAIN_MEM_MAXIMUM) {
if (isActive)
flags = VIR_DOMAIN_MEM_LIVE | VIR_DOMAIN_MEM_MAXIMUM;
else
flags = VIR_DOMAIN_MEM_CONFIG | VIR_DOMAIN_MEM_MAXIMUM;
}
if (!isActive && (flags & VIR_DOMAIN_MEM_LIVE)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot set memory on an inactive domain"));
goto endjob;
}
if (flags & VIR_DOMAIN_MEM_CONFIG) {
if (!vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot change persistent config of a transient domain"));
goto endjob;
}
if (!(persistentDef = virDomainObjGetPersistentDef(cfg->caps,
driver->xmlopt,
vm)))
goto endjob;
}
if (flags & VIR_DOMAIN_MEM_MAXIMUM) {
/* resize the maximum memory */
if (flags & VIR_DOMAIN_MEM_LIVE) {
priv = vm->privateData;
if (libxl_domain_setmaxmem(priv->ctx, vm->def->id, newmem) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to set maximum memory for domain '%d'"
" with libxenlight"), vm->def->id);
goto endjob;
}
}
if (flags & VIR_DOMAIN_MEM_CONFIG) {
/* Help clang 2.8 decipher the logic flow. */
sa_assert(persistentDef);
persistentDef->mem.max_balloon = newmem;
if (persistentDef->mem.cur_balloon > newmem)
persistentDef->mem.cur_balloon = newmem;
ret = virDomainSaveConfig(cfg->configDir, persistentDef);
goto endjob;
}
} else {
/* resize the current memory */
if (newmem > vm->def->mem.max_balloon) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("cannot set memory higher than max memory"));
goto endjob;
}
if (flags & VIR_DOMAIN_MEM_LIVE) {
int res;
priv = vm->privateData;
/* Unlock virDomainObj while ballooning memory */
virObjectUnlock(vm);
res = libxl_set_memory_target(priv->ctx, vm->def->id, newmem, 0,
/* force */ 1);
virObjectLock(vm);
if (res < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to set memory for domain '%d'"
" with libxenlight"), vm->def->id);
goto endjob;
}
}
if (flags & VIR_DOMAIN_MEM_CONFIG) {
sa_assert(persistentDef);
persistentDef->mem.cur_balloon = newmem;
ret = virDomainSaveConfig(cfg->configDir, persistentDef);
goto endjob;
}
}
ret = 0;
endjob:
if (!libxlDomainObjEndJob(driver, vm))
vm = NULL;
cleanup:
if (vm)
virObjectUnlock(vm);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainSetMemory(virDomainPtr dom, unsigned long memory)
{
return libxlDomainSetMemoryFlags(dom, memory, VIR_DOMAIN_MEM_LIVE);
}
static int
libxlDomainSetMaxMemory(virDomainPtr dom, unsigned long memory)
{
return libxlDomainSetMemoryFlags(dom, memory, VIR_DOMAIN_MEM_MAXIMUM);
}
static int
libxlDomainGetInfo(virDomainPtr dom, virDomainInfoPtr info)
{
virDomainObjPtr vm;
libxl_dominfo d_info;
libxlDomainObjPrivatePtr priv;
int ret = -1;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetInfoEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
priv = vm->privateData;
if (!virDomainObjIsActive(vm)) {
info->cpuTime = 0;
info->memory = vm->def->mem.cur_balloon;
info->maxMem = vm->def->mem.max_balloon;
} else {
if (libxl_domain_info(priv->ctx, &d_info, vm->def->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxl_domain_info failed for domain '%d'"),
vm->def->id);
goto cleanup;
}
info->cpuTime = d_info.cpu_time;
info->memory = d_info.current_memkb;
info->maxMem = d_info.max_memkb;
}
info->state = virDomainObjGetState(vm, NULL);
info->nrVirtCpu = vm->def->vcpus;
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainGetState(virDomainPtr dom,
int *state,
int *reason,
unsigned int flags)
{
virDomainObjPtr vm;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetStateEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
*state = virDomainObjGetState(vm, reason);
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
/*
* virDomainObjPtr must be locked on invocation
*/
static int
libxlDoDomainSave(libxlDriverPrivatePtr driver, virDomainObjPtr vm,
const char *to)
{
libxlDomainObjPrivatePtr priv = vm->privateData;
libxlSavefileHeader hdr;
virObjectEventPtr event = NULL;
char *xml = NULL;
uint32_t xml_len;
int fd = -1;
int ret = -1;
if (virDomainObjGetState(vm, NULL) == VIR_DOMAIN_PAUSED) {
virReportError(VIR_ERR_OPERATION_INVALID,
_("Domain '%d' has to be running because libxenlight will"
" suspend it"), vm->def->id);
goto cleanup;
}
if ((fd = virFileOpenAs(to, O_CREAT|O_TRUNC|O_WRONLY, S_IRUSR|S_IWUSR,
-1, -1, 0)) < 0) {
virReportSystemError(-fd,
_("Failed to create domain save file '%s'"), to);
goto cleanup;
}
if ((xml = virDomainDefFormat(vm->def, 0)) == NULL)
goto cleanup;
xml_len = strlen(xml) + 1;
memset(&hdr, 0, sizeof(hdr));
memcpy(hdr.magic, LIBXL_SAVE_MAGIC, sizeof(hdr.magic));
hdr.version = LIBXL_SAVE_VERSION;
hdr.xmlLen = xml_len;
if (safewrite(fd, &hdr, sizeof(hdr)) != sizeof(hdr)) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("Failed to write save file header"));
goto cleanup;
}
if (safewrite(fd, xml, xml_len) != xml_len) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("Failed to write xml description"));
goto cleanup;
}
/* Unlock virDomainObj while saving domain */
virObjectUnlock(vm);
ret = libxl_domain_suspend(priv->ctx, vm->def->id, fd, 0, NULL);
virObjectLock(vm);
if (ret != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to save domain '%d' with libxenlight"),
vm->def->id);
ret = -1;
goto cleanup;
}
event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_SAVED);
if (libxl_domain_destroy(priv->ctx, vm->def->id, NULL) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to destroy domain '%d'"), vm->def->id);
goto cleanup;
}
libxlDomainCleanup(driver, vm, VIR_DOMAIN_SHUTOFF_SAVED);
vm->hasManagedSave = true;
ret = 0;
cleanup:
VIR_FREE(xml);
if (VIR_CLOSE(fd) < 0)
virReportSystemError(errno, "%s", _("cannot close file"));
if (event)
libxlDomainEventQueue(driver, event);
return ret;
}
static int
libxlDomainSaveFlags(virDomainPtr dom, const char *to, const char *dxml,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
bool remove_dom = false;
virCheckFlags(0, -1);
if (dxml) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("xml modification unsupported"));
return -1;
}
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainSaveFlagsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("Domain is not running"));
goto endjob;
}
if (libxlDoDomainSave(driver, vm, to) < 0)
goto endjob;
if (!vm->persistent)
remove_dom = true;
ret = 0;
endjob:
if (!libxlDomainObjEndJob(driver, vm))
vm = NULL;
cleanup:
if (remove_dom && vm) {
virDomainObjListRemove(driver->domains, vm);
vm = NULL;
}
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainSave(virDomainPtr dom, const char *to)
{
return libxlDomainSaveFlags(dom, to, NULL, 0);
}
static int
libxlDomainRestoreFlags(virConnectPtr conn, const char *from,
const char *dxml, unsigned int flags)
{
libxlDriverPrivatePtr driver = conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm = NULL;
virDomainDefPtr def = NULL;
libxlSavefileHeader hdr;
int fd = -1;
int ret = -1;
virCheckFlags(VIR_DOMAIN_SAVE_PAUSED, -1);
if (dxml) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("xml modification unsupported"));
return -1;
}
fd = libxlDomainSaveImageOpen(driver, cfg, from, &def, &hdr);
if (fd < 0)
goto cleanup_unlock;
if (virDomainRestoreFlagsEnsureACL(conn, def) < 0)
goto cleanup_unlock;
if (!(vm = virDomainObjListAdd(driver->domains, def,
driver->xmlopt,
VIR_DOMAIN_OBJ_LIST_ADD_LIVE |
VIR_DOMAIN_OBJ_LIST_ADD_CHECK_LIVE,
NULL)))
goto cleanup_unlock;
def = NULL;
ret = libxlDomainStart(driver, vm, (flags & VIR_DOMAIN_SAVE_PAUSED) != 0, fd);
if (ret < 0 && !vm->persistent) {
virDomainObjListRemove(driver->domains, vm);
vm = NULL;
}
cleanup:
if (VIR_CLOSE(fd) < 0)
virReportSystemError(errno, "%s", _("cannot close file"));
virDomainDefFree(def);
if (vm)
virObjectUnlock(vm);
virObjectUnref(cfg);
return ret;
cleanup_unlock:
libxlDriverUnlock(driver);
goto cleanup;
}
static int
libxlDomainRestore(virConnectPtr conn, const char *from)
{
return libxlDomainRestoreFlags(conn, from, NULL, 0);
}
static int
libxlDomainCoreDump(virDomainPtr dom, const char *to, unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDomainObjPrivatePtr priv;
virDomainObjPtr vm;
virObjectEventPtr event = NULL;
bool remove_dom = false;
bool paused = false;
int ret = -1;
virCheckFlags(VIR_DUMP_LIVE | VIR_DUMP_CRASH, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainCoreDumpEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("Domain is not running"));
goto endjob;
}
priv = vm->privateData;
if (!(flags & VIR_DUMP_LIVE) &&
virDomainObjGetState(vm, NULL) == VIR_DOMAIN_RUNNING) {
if (libxl_domain_pause(priv->ctx, vm->def->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Before dumping core, failed to suspend domain '%d'"
" with libxenlight"),
vm->def->id);
goto endjob;
}
virDomainObjSetState(vm, VIR_DOMAIN_PAUSED, VIR_DOMAIN_PAUSED_DUMP);
paused = true;
}
/* Unlock virDomainObj while dumping core */
virObjectUnlock(vm);
ret = libxl_domain_core_dump(priv->ctx, vm->def->id, to, NULL);
virObjectLock(vm);
if (ret != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to dump core of domain '%d' with libxenlight"),
vm->def->id);
ret = -1;
goto unpause;
}
if (flags & VIR_DUMP_CRASH) {
if (libxl_domain_destroy(priv->ctx, vm->def->id, NULL) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to destroy domain '%d'"), vm->def->id);
goto unpause;
}
libxlDomainCleanup(driver, vm, VIR_DOMAIN_SHUTOFF_CRASHED);
event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_CRASHED);
if (!vm->persistent)
remove_dom = true;
}
ret = 0;
unpause:
if (virDomainObjIsActive(vm) && paused) {
if (libxl_domain_unpause(priv->ctx, vm->def->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("After dumping core, failed to resume domain '%d' with"
" libxenlight"), vm->def->id);
} else {
virDomainObjSetState(vm, VIR_DOMAIN_RUNNING,
VIR_DOMAIN_RUNNING_UNPAUSED);
}
}
endjob:
if (!libxlDomainObjEndJob(driver, vm))
vm = NULL;
cleanup:
if (remove_dom && vm) {
virDomainObjListRemove(driver->domains, vm);
vm = NULL;
}
if (vm)
virObjectUnlock(vm);
if (event)
libxlDomainEventQueue(driver, event);
return ret;
}
static int
libxlDomainManagedSave(virDomainPtr dom, unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
char *name = NULL;
int ret = -1;
bool remove_dom = false;
virCheckFlags(0, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainManagedSaveEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("Domain is not running"));
goto endjob;
}
if (!vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot do managed save for transient domain"));
goto endjob;
}
name = libxlDomainManagedSavePath(driver, vm);
if (name == NULL)
goto endjob;
VIR_INFO("Saving state to %s", name);
if (libxlDoDomainSave(driver, vm, name) < 0)
goto endjob;
if (!vm->persistent)
remove_dom = true;
ret = 0;
endjob:
if (!libxlDomainObjEndJob(driver, vm))
vm = NULL;
cleanup:
if (remove_dom && vm) {
virDomainObjListRemove(driver->domains, vm);
vm = NULL;
}
if (vm)
virObjectUnlock(vm);
VIR_FREE(name);
return ret;
}
static int
libxlDomainManagedSaveLoad(virDomainObjPtr vm,
void *opaque)
{
libxlDriverPrivatePtr driver = opaque;
char *name;
int ret = -1;
virObjectLock(vm);
if (!(name = libxlDomainManagedSavePath(driver, vm)))
goto cleanup;
vm->hasManagedSave = virFileExists(name);
ret = 0;
cleanup:
virObjectUnlock(vm);
VIR_FREE(name);
return ret;
}
static int
libxlDomainHasManagedSaveImage(virDomainPtr dom, unsigned int flags)
{
virDomainObjPtr vm = NULL;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainHasManagedSaveImageEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
ret = vm->hasManagedSave;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainManagedSaveRemove(virDomainPtr dom, unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
int ret = -1;
char *name = NULL;
virCheckFlags(0, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainManagedSaveRemoveEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
name = libxlDomainManagedSavePath(driver, vm);
if (name == NULL)
goto cleanup;
ret = unlink(name);
vm->hasManagedSave = false;
cleanup:
VIR_FREE(name);
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainSetVcpusFlags(virDomainPtr dom, unsigned int nvcpus,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
libxlDomainObjPrivatePtr priv;
virDomainDefPtr def;
virDomainObjPtr vm;
libxl_bitmap map;
uint8_t *bitmask = NULL;
unsigned int maplen;
size_t i;
unsigned int pos;
int max;
int ret = -1;
virCheckFlags(VIR_DOMAIN_VCPU_LIVE |
VIR_DOMAIN_VCPU_CONFIG |
VIR_DOMAIN_VCPU_MAXIMUM, -1);
/* At least one of LIVE or CONFIG must be set. MAXIMUM cannot be
* mixed with LIVE. */
if ((flags & (VIR_DOMAIN_VCPU_LIVE | VIR_DOMAIN_VCPU_CONFIG)) == 0 ||
(flags & (VIR_DOMAIN_VCPU_MAXIMUM | VIR_DOMAIN_VCPU_LIVE)) ==
(VIR_DOMAIN_VCPU_MAXIMUM | VIR_DOMAIN_VCPU_LIVE)) {
virReportError(VIR_ERR_INVALID_ARG,
_("invalid flag combination: (0x%x)"), flags);
return -1;
}
if (!nvcpus) {
virReportError(VIR_ERR_INVALID_ARG, "%s", _("nvcpus is zero"));
return -1;
}
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainSetVcpusFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm) && (flags & VIR_DOMAIN_VCPU_LIVE)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot set vcpus on an inactive domain"));
goto endjob;
}
if (!vm->persistent && (flags & VIR_DOMAIN_VCPU_CONFIG)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot change persistent config of a transient domain"));
goto endjob;
}
if ((max = libxlConnectGetMaxVcpus(dom->conn, NULL)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("could not determine max vcpus for the domain"));
goto endjob;
}
if (!(flags & VIR_DOMAIN_VCPU_MAXIMUM) && vm->def->maxvcpus < max) {
max = vm->def->maxvcpus;
}
if (nvcpus > max) {
virReportError(VIR_ERR_INVALID_ARG,
_("requested vcpus is greater than max allowable"
" vcpus for the domain: %d > %d"), nvcpus, max);
goto endjob;
}
priv = vm->privateData;
if (!(def = virDomainObjGetPersistentDef(cfg->caps, driver->xmlopt, vm)))
goto endjob;
maplen = VIR_CPU_MAPLEN(nvcpus);
if (VIR_ALLOC_N(bitmask, maplen) < 0)
goto endjob;
for (i = 0; i < nvcpus; ++i) {
pos = i / 8;
bitmask[pos] |= 1 << (i % 8);
}
map.size = maplen;
map.map = bitmask;
switch (flags) {
case VIR_DOMAIN_VCPU_MAXIMUM | VIR_DOMAIN_VCPU_CONFIG:
def->maxvcpus = nvcpus;
if (nvcpus < def->vcpus)
def->vcpus = nvcpus;
break;
case VIR_DOMAIN_VCPU_CONFIG:
def->vcpus = nvcpus;
break;
case VIR_DOMAIN_VCPU_LIVE:
if (libxl_set_vcpuonline(priv->ctx, vm->def->id, &map) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to set vcpus for domain '%d'"
" with libxenlight"), vm->def->id);
goto endjob;
}
break;
case VIR_DOMAIN_VCPU_LIVE | VIR_DOMAIN_VCPU_CONFIG:
if (libxl_set_vcpuonline(priv->ctx, vm->def->id, &map) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to set vcpus for domain '%d'"
" with libxenlight"), vm->def->id);
goto endjob;
}
def->vcpus = nvcpus;
break;
}
ret = 0;
if (flags & VIR_DOMAIN_VCPU_CONFIG)
ret = virDomainSaveConfig(cfg->configDir, def);
endjob:
if (!libxlDomainObjEndJob(driver, vm))
vm = NULL;
cleanup:
VIR_FREE(bitmask);
if (vm)
virObjectUnlock(vm);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainSetVcpus(virDomainPtr dom, unsigned int nvcpus)
{
return libxlDomainSetVcpusFlags(dom, nvcpus, VIR_DOMAIN_VCPU_LIVE);
}
static int
libxlDomainGetVcpusFlags(virDomainPtr dom, unsigned int flags)
{
virDomainObjPtr vm;
virDomainDefPtr def;
int ret = -1;
bool active;
virCheckFlags(VIR_DOMAIN_VCPU_LIVE |
VIR_DOMAIN_VCPU_CONFIG |
VIR_DOMAIN_VCPU_MAXIMUM, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetVcpusFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
active = virDomainObjIsActive(vm);
if ((flags & (VIR_DOMAIN_VCPU_LIVE | VIR_DOMAIN_VCPU_CONFIG)) == 0) {
if (active)
flags |= VIR_DOMAIN_VCPU_LIVE;
else
flags |= VIR_DOMAIN_VCPU_CONFIG;
}
if ((flags & VIR_DOMAIN_VCPU_LIVE) && (flags & VIR_DOMAIN_VCPU_CONFIG)) {
virReportError(VIR_ERR_INVALID_ARG,
_("invalid flag combination: (0x%x)"), flags);
return -1;
}
if (flags & VIR_DOMAIN_VCPU_LIVE) {
if (!active) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("Domain is not running"));
goto cleanup;
}
def = vm->def;
} else {
if (!vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain is transient"));
goto cleanup;
}
def = vm->newDef ? vm->newDef : vm->def;
}
ret = (flags & VIR_DOMAIN_VCPU_MAXIMUM) ? def->maxvcpus : def->vcpus;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainPinVcpuFlags(virDomainPtr dom, unsigned int vcpu,
unsigned char *cpumap, int maplen,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainDefPtr targetDef = NULL;
virBitmapPtr pcpumap = NULL;
virDomainObjPtr vm;
int ret = -1;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainPinVcpuFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if ((flags & VIR_DOMAIN_AFFECT_LIVE) && !virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("domain is inactive"));
goto endjob;
}
if (virDomainLiveConfigHelperMethod(cfg->caps, driver->xmlopt, vm,
&flags, &targetDef) < 0)
goto endjob;
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
targetDef = vm->def;
}
/* Make sure coverity knows targetDef is valid at this point. */
sa_assert(targetDef);
pcpumap = virBitmapNewData(cpumap, maplen);
if (!pcpumap)
goto endjob;
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
libxl_bitmap map = { .size = maplen, .map = cpumap };
libxlDomainObjPrivatePtr priv;
priv = vm->privateData;
if (libxl_set_vcpuaffinity(priv->ctx, vm->def->id, vcpu, &map) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to pin vcpu '%d' with libxenlight"),
vcpu);
goto endjob;
}
}
/* full bitmap means reset the settings (if any). */
if (virBitmapIsAllSet(pcpumap)) {
if (virDomainVcpuPinDel(targetDef, vcpu) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to delete vcpupin xml for vcpu '%d'"),
vcpu);
goto endjob;
}
goto done;
}
if (!targetDef->cputune.vcpupin) {
if (VIR_ALLOC(targetDef->cputune.vcpupin) < 0)
goto endjob;
targetDef->cputune.nvcpupin = 0;
}
if (virDomainVcpuPinAdd(&targetDef->cputune.vcpupin,
&targetDef->cputune.nvcpupin,
cpumap,
maplen,
vcpu) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("failed to update or add vcpupin xml"));
goto endjob;
}
done:
ret = 0;
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
ret = virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm);
} else if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
ret = virDomainSaveConfig(cfg->configDir, targetDef);
}
endjob:
if (!libxlDomainObjEndJob(driver, vm))
vm = NULL;
cleanup:
if (vm)
virObjectUnlock(vm);
virBitmapFree(pcpumap);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainPinVcpu(virDomainPtr dom, unsigned int vcpu, unsigned char *cpumap,
int maplen)
{
return libxlDomainPinVcpuFlags(dom, vcpu, cpumap, maplen,
VIR_DOMAIN_AFFECT_LIVE);
}
static int
libxlDomainGetVcpuPinInfo(virDomainPtr dom, int ncpumaps,
unsigned char *cpumaps, int maplen,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm = NULL;
virDomainDefPtr targetDef = NULL;
virDomainVcpuPinDefPtr *vcpupin_list;
virBitmapPtr cpumask = NULL;
int maxcpu, hostcpus, vcpu, pcpu, n, ret = -1;
unsigned char *cpumap;
bool pinned;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetVcpuPinInfoEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainLiveConfigHelperMethod(cfg->caps, driver->xmlopt, vm,
&flags, &targetDef) < 0)
goto cleanup;
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
targetDef = vm->def;
}
/* Make sure coverity knows targetDef is valid at this point. */
sa_assert(targetDef);
/* Clamp to actual number of vcpus */
if (ncpumaps > targetDef->vcpus)
ncpumaps = targetDef->vcpus;
/* we use cfg->ctx, as vm->privateData->ctx may be NULL if VM is down. */
if ((hostcpus = libxl_get_max_cpus(cfg->ctx)) < 0)
goto cleanup;
maxcpu = maplen * 8;
if (maxcpu > hostcpus)
maxcpu = hostcpus;
/* initialize cpumaps */
memset(cpumaps, 0xff, maplen * ncpumaps);
if (maxcpu % 8) {
for (vcpu = 0; vcpu < ncpumaps; vcpu++) {
cpumap = VIR_GET_CPUMAP(cpumaps, maplen, vcpu);
cpumap[maplen - 1] &= (1 << maxcpu % 8) - 1;
}
}
/* if vcpupin setting exists, there may be unused pcpus */
for (n = 0; n < targetDef->cputune.nvcpupin; n++) {
vcpupin_list = targetDef->cputune.vcpupin;
vcpu = vcpupin_list[n]->vcpuid;
cpumask = vcpupin_list[n]->cpumask;
cpumap = VIR_GET_CPUMAP(cpumaps, maplen, vcpu);
for (pcpu = 0; pcpu < maxcpu; pcpu++) {
if (virBitmapGetBit(cpumask, pcpu, &pinned) < 0)
goto cleanup;
if (!pinned)
VIR_UNUSE_CPU(cpumap, pcpu);
}
}
ret = ncpumaps;
cleanup:
if (vm)
virObjectUnlock(vm);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainGetVcpus(virDomainPtr dom, virVcpuInfoPtr info, int maxinfo,
unsigned char *cpumaps, int maplen)
{
libxlDomainObjPrivatePtr priv;
virDomainObjPtr vm;
int ret = -1;
libxl_vcpuinfo *vcpuinfo;
int maxcpu, hostcpus;
size_t i;
unsigned char *cpumap;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetVcpusEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("Domain is not running"));
goto cleanup;
}
priv = vm->privateData;
if ((vcpuinfo = libxl_list_vcpu(priv->ctx, vm->def->id, &maxcpu,
&hostcpus)) == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to list vcpus for domain '%d' with libxenlight"),
vm->def->id);
goto cleanup;
}
if (cpumaps && maplen > 0)
memset(cpumaps, 0, maplen * maxinfo);
for (i = 0; i < maxcpu && i < maxinfo; ++i) {
info[i].number = vcpuinfo[i].vcpuid;
info[i].cpu = vcpuinfo[i].cpu;
info[i].cpuTime = vcpuinfo[i].vcpu_time;
if (vcpuinfo[i].running)
info[i].state = VIR_VCPU_RUNNING;
else if (vcpuinfo[i].blocked)
info[i].state = VIR_VCPU_BLOCKED;
else
info[i].state = VIR_VCPU_OFFLINE;
if (cpumaps && maplen > 0) {
cpumap = VIR_GET_CPUMAP(cpumaps, maplen, i);
memcpy(cpumap, vcpuinfo[i].cpumap.map,
MIN(maplen, vcpuinfo[i].cpumap.size));
}
libxl_vcpuinfo_dispose(&vcpuinfo[i]);
}
VIR_FREE(vcpuinfo);
ret = maxinfo;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static char *
libxlDomainGetXMLDesc(virDomainPtr dom, unsigned int flags)
{
virDomainObjPtr vm;
char *ret = NULL;
/* Flags checked by virDomainDefFormat */
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetXMLDescEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
ret = virDomainDefFormat(vm->def, flags);
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static char *
libxlConnectDomainXMLFromNative(virConnectPtr conn,
const char *nativeFormat,
const char *nativeConfig,
unsigned int flags)
{
libxlDriverPrivatePtr driver = conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainDefPtr def = NULL;
virConfPtr conf = NULL;
char *xml = NULL;
virCheckFlags(0, NULL);
if (virConnectDomainXMLFromNativeEnsureACL(conn) < 0)
goto cleanup;
if (STREQ(nativeFormat, LIBXL_CONFIG_FORMAT_XM)) {
if (!(conf = virConfReadMem(nativeConfig, strlen(nativeConfig), 0)))
goto cleanup;
if (!(def = xenParseXM(conf,
cfg->verInfo->xen_version_major,
cfg->caps))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("parsing xm config failed"));
goto cleanup;
}
} else if (STREQ(nativeFormat, LIBXL_CONFIG_FORMAT_SEXPR)) {
/* only support latest xend config format */
if (!(def = xenParseSxprString(nativeConfig,
XEND_CONFIG_VERSION_3_1_0,
NULL,
-1))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("parsing sxpr config failed"));
goto cleanup;
}
} else {
virReportError(VIR_ERR_INVALID_ARG,
_("unsupported config type %s"), nativeFormat);
goto cleanup;
}
xml = virDomainDefFormat(def, VIR_DOMAIN_XML_INACTIVE);
cleanup:
virDomainDefFree(def);
if (conf)
virConfFree(conf);
virObjectUnref(cfg);
return xml;
}
#define MAX_CONFIG_SIZE (1024 * 65)
static char *
libxlConnectDomainXMLToNative(virConnectPtr conn, const char * nativeFormat,
const char * domainXml,
unsigned int flags)
{
libxlDriverPrivatePtr driver = conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainDefPtr def = NULL;
virConfPtr conf = NULL;
int len = MAX_CONFIG_SIZE;
char *ret = NULL;
virCheckFlags(0, NULL);
if (virConnectDomainXMLToNativeEnsureACL(conn) < 0)
goto cleanup;
if (STRNEQ(nativeFormat, LIBXL_CONFIG_FORMAT_XM)) {
virReportError(VIR_ERR_INVALID_ARG,
_("unsupported config type %s"), nativeFormat);
goto cleanup;
}
if (!(def = virDomainDefParseString(domainXml,
cfg->caps, driver->xmlopt,
1 << VIR_DOMAIN_VIRT_XEN,
VIR_DOMAIN_XML_INACTIVE)))
goto cleanup;
if (!(conf = xenFormatXM(conn, def, cfg->verInfo->xen_version_major)))
goto cleanup;
if (VIR_ALLOC_N(ret, len) < 0)
goto cleanup;
if (virConfWriteMem(ret, &len, conf) < 0) {
VIR_FREE(ret);
goto cleanup;
}
cleanup:
virDomainDefFree(def);
if (conf)
virConfFree(conf);
virObjectUnref(cfg);
return ret;
}
static int
libxlConnectListDefinedDomains(virConnectPtr conn,
char **const names, int nnames)
{
libxlDriverPrivatePtr driver = conn->privateData;
int n;
if (virConnectListDefinedDomainsEnsureACL(conn) < 0)
return -1;
n = virDomainObjListGetInactiveNames(driver->domains, names, nnames,
virConnectListDefinedDomainsCheckACL, conn);
return n;
}
static int
libxlConnectNumOfDefinedDomains(virConnectPtr conn)
{
libxlDriverPrivatePtr driver = conn->privateData;
int n;
if (virConnectNumOfDefinedDomainsEnsureACL(conn) < 0)
return -1;
n = virDomainObjListNumOfDomains(driver->domains, false,
virConnectNumOfDefinedDomainsCheckACL,
conn);
return n;
}
static int
libxlDomainCreateWithFlags(virDomainPtr dom,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
virCheckFlags(VIR_DOMAIN_START_PAUSED, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainCreateWithFlagsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("Domain is already running"));
goto cleanup;
}
ret = libxlDomainStart(driver, vm, (flags & VIR_DOMAIN_START_PAUSED) != 0, -1);
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainCreate(virDomainPtr dom)
{
return libxlDomainCreateWithFlags(dom, 0);
}
static virDomainPtr
libxlDomainDefineXML(virConnectPtr conn, const char *xml)
{
libxlDriverPrivatePtr driver = conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainDefPtr def = NULL;
virDomainObjPtr vm = NULL;
virDomainPtr dom = NULL;
virObjectEventPtr event = NULL;
virDomainDefPtr oldDef = NULL;
/* Lock the driver until the virDomainObj is created and locked */
libxlDriverLock(driver);
if (!(def = virDomainDefParseString(xml, cfg->caps, driver->xmlopt,
1 << VIR_DOMAIN_VIRT_XEN,
VIR_DOMAIN_XML_INACTIVE)))
goto cleanup_unlock;
if (virDomainDefineXMLEnsureACL(conn, def) < 0)
goto cleanup_unlock;
if (!(vm = virDomainObjListAdd(driver->domains, def,
driver->xmlopt,
0,
&oldDef)))
goto cleanup_unlock;
def = NULL;
vm->persistent = 1;
libxlDriverUnlock(driver);
if (virDomainSaveConfig(cfg->configDir,
vm->newDef ? vm->newDef : vm->def) < 0) {
virDomainObjListRemove(driver->domains, vm);
vm = NULL;
goto cleanup;
}
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom)
dom->id = vm->def->id;
event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_DEFINED,
!oldDef ?
VIR_DOMAIN_EVENT_DEFINED_ADDED :
VIR_DOMAIN_EVENT_DEFINED_UPDATED);
cleanup:
virDomainDefFree(def);
virDomainDefFree(oldDef);
if (vm)
virObjectUnlock(vm);
if (event)
libxlDomainEventQueue(driver, event);
virObjectUnref(cfg);
return dom;
cleanup_unlock:
libxlDriverUnlock(driver);
goto cleanup;
}
static int
libxlDomainUndefineFlags(virDomainPtr dom,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
virObjectEventPtr event = NULL;
char *name = NULL;
int ret = -1;
virCheckFlags(VIR_DOMAIN_UNDEFINE_MANAGED_SAVE, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainUndefineFlagsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cannot undefine transient domain"));
goto cleanup;
}
name = libxlDomainManagedSavePath(driver, vm);
if (name == NULL)
goto cleanup;
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 cleanup;
}
} else {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("Refusing to undefine while domain managed "
"save image exists"));
goto cleanup;
}
}
if (virDomainDeleteConfig(cfg->configDir, cfg->autostartDir, vm) < 0)
goto cleanup;
event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_UNDEFINED,
VIR_DOMAIN_EVENT_UNDEFINED_REMOVED);
if (virDomainObjIsActive(vm)) {
vm->persistent = 0;
} else {
virDomainObjListRemove(driver->domains, vm);
vm = NULL;
}
ret = 0;
cleanup:
VIR_FREE(name);
if (vm)
virObjectUnlock(vm);
if (event)
libxlDomainEventQueue(driver, event);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainUndefine(virDomainPtr dom)
{
return libxlDomainUndefineFlags(dom, 0);
}
static int
libxlDomainChangeEjectableMedia(libxlDomainObjPrivatePtr priv,
virDomainObjPtr vm, virDomainDiskDefPtr disk)
{
virDomainDiskDefPtr origdisk = NULL;
libxl_device_disk x_disk;
size_t i;
int ret = -1;
for (i = 0; i < vm->def->ndisks; i++) {
if (vm->def->disks[i]->bus == disk->bus &&
STREQ(vm->def->disks[i]->dst, disk->dst)) {
origdisk = vm->def->disks[i];
break;
}
}
if (!origdisk) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("No device with bus '%s' and target '%s'"),
virDomainDiskBusTypeToString(disk->bus), disk->dst);
goto cleanup;
}
if (origdisk->device != VIR_DOMAIN_DISK_DEVICE_CDROM) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Removable media not supported for %s device"),
virDomainDiskDeviceTypeToString(disk->device));
return -1;
}
if (libxlMakeDisk(disk, &x_disk) < 0)
goto cleanup;
if ((ret = libxl_cdrom_insert(priv->ctx, vm->def->id, &x_disk, NULL)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight failed to change media for disk '%s'"),
disk->dst);
goto cleanup;
}
if (virDomainDiskSetSource(origdisk, virDomainDiskGetSource(disk)) < 0)
goto cleanup;
virDomainDiskSetType(origdisk, virDomainDiskGetType(disk));
virDomainDiskDefFree(disk);
ret = 0;
cleanup:
return ret;
}
static int
libxlDomainAttachDeviceDiskLive(libxlDomainObjPrivatePtr priv,
virDomainObjPtr vm, virDomainDeviceDefPtr dev)
{
virDomainDiskDefPtr l_disk = dev->data.disk;
libxl_device_disk x_disk;
int ret = -1;
switch (l_disk->device) {
case VIR_DOMAIN_DISK_DEVICE_CDROM:
ret = libxlDomainChangeEjectableMedia(priv, vm, l_disk);
break;
case VIR_DOMAIN_DISK_DEVICE_DISK:
if (l_disk->bus == VIR_DOMAIN_DISK_BUS_XEN) {
if (virDomainDiskIndexByName(vm->def, l_disk->dst, true) >= 0) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("target %s already exists"), l_disk->dst);
goto cleanup;
}
if (!virDomainDiskGetSource(l_disk)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("disk source path is missing"));
goto cleanup;
}
if (VIR_REALLOC_N(vm->def->disks, vm->def->ndisks+1) < 0)
goto cleanup;
if (libxlMakeDisk(l_disk, &x_disk) < 0)
goto cleanup;
if ((ret = libxl_device_disk_add(priv->ctx, vm->def->id,
&x_disk, NULL)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight failed to attach disk '%s'"),
l_disk->dst);
goto cleanup;
}
virDomainDiskInsertPreAlloced(vm->def, l_disk);
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("disk bus '%s' cannot be hotplugged."),
virDomainDiskBusTypeToString(l_disk->bus));
}
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("disk device type '%s' cannot be hotplugged"),
virDomainDiskDeviceTypeToString(l_disk->device));
break;
}
cleanup:
return ret;
}
static int
libxlDomainAttachHostPCIDevice(libxlDriverPrivatePtr driver,
libxlDomainObjPrivatePtr priv,
virDomainObjPtr vm,
virDomainHostdevDefPtr hostdev)
{
libxl_device_pci pcidev;
virDomainHostdevDefPtr found;
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
if (hostdev->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI)
return -1;
if (virDomainHostdevFind(vm->def, hostdev, &found) >= 0) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("target pci device %.4x:%.2x:%.2x.%.1x already exists"),
hostdev->source.subsys.u.pci.addr.domain,
hostdev->source.subsys.u.pci.addr.bus,
hostdev->source.subsys.u.pci.addr.slot,
hostdev->source.subsys.u.pci.addr.function);
return -1;
}
if (VIR_REALLOC_N(vm->def->hostdevs, vm->def->nhostdevs + 1) < 0)
return -1;
if (virHostdevPreparePCIDevices(hostdev_mgr, LIBXL_DRIVER_NAME,
vm->def->name, vm->def->uuid,
&hostdev, 1, 0) < 0)
return -1;
if (libxlMakePci(hostdev, &pcidev) < 0)
goto error;
if (libxl_device_pci_add(priv->ctx, vm->def->id, &pcidev, 0) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight failed to attach pci device %.4x:%.2x:%.2x.%.1x"),
hostdev->source.subsys.u.pci.addr.domain,
hostdev->source.subsys.u.pci.addr.bus,
hostdev->source.subsys.u.pci.addr.slot,
hostdev->source.subsys.u.pci.addr.function);
goto error;
}
vm->def->hostdevs[vm->def->nhostdevs++] = hostdev;
return 0;
error:
virHostdevReAttachPCIDevices(hostdev_mgr, LIBXL_DRIVER_NAME,
vm->def->name, &hostdev, 1, NULL);
return -1;
}
static int
libxlDomainAttachHostDevice(libxlDriverPrivatePtr driver,
libxlDomainObjPrivatePtr priv,
virDomainObjPtr vm,
virDomainDeviceDefPtr dev)
{
virDomainHostdevDefPtr hostdev = dev->data.hostdev;
if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("hostdev mode '%s' not supported"),
virDomainHostdevModeTypeToString(hostdev->mode));
return -1;
}
switch (hostdev->source.subsys.type) {
case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI:
if (libxlDomainAttachHostPCIDevice(driver, priv, vm, hostdev) < 0)
return -1;
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("hostdev subsys type '%s' not supported"),
virDomainHostdevSubsysTypeToString(hostdev->source.subsys.type));
return -1;
}
return 0;
}
static int
libxlDomainDetachDeviceDiskLive(libxlDomainObjPrivatePtr priv,
virDomainObjPtr vm, virDomainDeviceDefPtr dev)
{
virDomainDiskDefPtr l_disk = NULL;
libxl_device_disk x_disk;
int idx;
int ret = -1;
switch (dev->data.disk->device) {
case VIR_DOMAIN_DISK_DEVICE_DISK:
if (dev->data.disk->bus == VIR_DOMAIN_DISK_BUS_XEN) {
if ((idx = virDomainDiskIndexByName(vm->def,
dev->data.disk->dst,
false)) < 0) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("disk %s not found"), dev->data.disk->dst);
goto cleanup;
}
l_disk = vm->def->disks[idx];
if (libxlMakeDisk(l_disk, &x_disk) < 0)
goto cleanup;
if ((ret = libxl_device_disk_remove(priv->ctx, vm->def->id,
&x_disk, NULL)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight failed to detach disk '%s'"),
l_disk->dst);
goto cleanup;
}
virDomainDiskRemove(vm->def, idx);
virDomainDiskDefFree(l_disk);
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("disk bus '%s' cannot be hot unplugged."),
virDomainDiskBusTypeToString(dev->data.disk->bus));
}
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("device type '%s' cannot hot unplugged"),
virDomainDiskDeviceTypeToString(dev->data.disk->device));
break;
}
cleanup:
return ret;
}
static int
libxlDomainAttachDeviceLive(libxlDriverPrivatePtr driver,
libxlDomainObjPrivatePtr priv,
virDomainObjPtr vm,
virDomainDeviceDefPtr dev)
{
int ret = -1;
switch (dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
ret = libxlDomainAttachDeviceDiskLive(priv, vm, dev);
if (!ret)
dev->data.disk = NULL;
break;
case VIR_DOMAIN_DEVICE_HOSTDEV:
ret = libxlDomainAttachHostDevice(driver, priv, vm, dev);
if (!ret)
dev->data.hostdev = NULL;
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("device type '%s' cannot be attached"),
virDomainDeviceTypeToString(dev->type));
break;
}
return ret;
}
static int
libxlDomainAttachDeviceConfig(virDomainDefPtr vmdef, virDomainDeviceDefPtr dev)
{
virDomainDiskDefPtr disk;
virDomainHostdevDefPtr hostdev;
virDomainHostdevDefPtr found;
switch (dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
disk = dev->data.disk;
if (virDomainDiskIndexByName(vmdef, disk->dst, true) >= 0) {
virReportError(VIR_ERR_INVALID_ARG,
_("target %s already exists."), disk->dst);
return -1;
}
if (virDomainDiskInsert(vmdef, disk))
return -1;
/* vmdef has the pointer. Generic codes for vmdef will do all jobs */
dev->data.disk = NULL;
break;
case VIR_DOMAIN_DEVICE_HOSTDEV:
hostdev = dev->data.hostdev;
if (hostdev->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI)
return -1;
if (virDomainHostdevFind(vmdef, hostdev, &found) >= 0) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("target pci device %.4x:%.2x:%.2x.%.1x\
already exists"),
hostdev->source.subsys.u.pci.addr.domain,
hostdev->source.subsys.u.pci.addr.bus,
hostdev->source.subsys.u.pci.addr.slot,
hostdev->source.subsys.u.pci.addr.function);
return -1;
}
virDomainHostdevInsert(vmdef, hostdev);
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("persistent attach of device is not supported"));
return -1;
}
return 0;
}
static int
libxlComparePCIDevice(virDomainDefPtr def ATTRIBUTE_UNUSED,
virDomainDeviceDefPtr device ATTRIBUTE_UNUSED,
virDomainDeviceInfoPtr info1,
void *opaque)
{
virDomainDeviceInfoPtr info2 = opaque;
if (info1->type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI ||
info2->type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI)
return 0;
if (info1->addr.pci.domain == info2->addr.pci.domain &&
info1->addr.pci.bus == info2->addr.pci.bus &&
info1->addr.pci.slot == info2->addr.pci.slot &&
info1->addr.pci.function != info2->addr.pci.function)
return -1;
return 0;
}
static bool
libxlIsMultiFunctionDevice(virDomainDefPtr def,
virDomainDeviceInfoPtr dev)
{
if (virDomainDeviceInfoIterate(def, libxlComparePCIDevice, dev) < 0)
return true;
return false;
}
static int
libxlDomainDetachHostPCIDevice(libxlDriverPrivatePtr driver,
libxlDomainObjPrivatePtr priv,
virDomainObjPtr vm,
virDomainHostdevDefPtr hostdev)
{
virDomainHostdevSubsysPtr subsys = &hostdev->source.subsys;
libxl_device_pci pcidev;
virDomainHostdevDefPtr detach;
int idx;
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
if (subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI)
return -1;
idx = virDomainHostdevFind(vm->def, hostdev, &detach);
if (idx < 0) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("host pci device %.4x:%.2x:%.2x.%.1x not found"),
subsys->u.pci.addr.domain, subsys->u.pci.addr.bus,
subsys->u.pci.addr.slot, subsys->u.pci.addr.function);
return -1;
}
if (libxlIsMultiFunctionDevice(vm->def, detach->info)) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("cannot hot unplug multifunction PCI device: %.4x:%.2x:%.2x.%.1x"),
subsys->u.pci.addr.domain, subsys->u.pci.addr.bus,
subsys->u.pci.addr.slot, subsys->u.pci.addr.function);
goto error;
}
libxl_device_pci_init(&pcidev);
if (libxlMakePci(detach, &pcidev) < 0)
goto error;
if (libxl_device_pci_remove(priv->ctx, vm->def->id, &pcidev, 0) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight failed to detach pci device\
%.4x:%.2x:%.2x.%.1x"),
subsys->u.pci.addr.domain, subsys->u.pci.addr.bus,
subsys->u.pci.addr.slot, subsys->u.pci.addr.function);
goto error;
}
libxl_device_pci_dispose(&pcidev);
virDomainHostdevRemove(vm->def, idx);
virHostdevReAttachPCIDevices(hostdev_mgr, LIBXL_DRIVER_NAME,
vm->def->name, &hostdev, 1, NULL);
return 0;
error:
virDomainHostdevDefFree(detach);
return -1;
}
static int
libxlDomainDetachHostDevice(libxlDriverPrivatePtr driver,
libxlDomainObjPrivatePtr priv,
virDomainObjPtr vm,
virDomainDeviceDefPtr dev)
{
virDomainHostdevDefPtr hostdev = dev->data.hostdev;
virDomainHostdevSubsysPtr subsys = &hostdev->source.subsys;
if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("hostdev mode '%s' not supported"),
virDomainHostdevModeTypeToString(hostdev->mode));
return -1;
}
switch (subsys->type) {
case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI:
return libxlDomainDetachHostPCIDevice(driver, priv, vm, hostdev);
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unexpected hostdev type %d"), subsys->type);
break;
}
return -1;
}
static int
libxlDomainDetachDeviceLive(libxlDriverPrivatePtr driver,
libxlDomainObjPrivatePtr priv,
virDomainObjPtr vm,
virDomainDeviceDefPtr dev)
{
int ret = -1;
switch (dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
ret = libxlDomainDetachDeviceDiskLive(priv, vm, dev);
break;
case VIR_DOMAIN_DEVICE_HOSTDEV:
ret = libxlDomainDetachHostDevice(driver, priv, vm, dev);
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("device type '%s' cannot be detached"),
virDomainDeviceTypeToString(dev->type));
break;
}
return ret;
}
static int
libxlDomainDetachDeviceConfig(virDomainDefPtr vmdef, virDomainDeviceDefPtr dev)
{
virDomainDiskDefPtr disk, detach;
int ret = -1;
switch (dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
disk = dev->data.disk;
if (!(detach = virDomainDiskRemoveByName(vmdef, disk->dst))) {
virReportError(VIR_ERR_INVALID_ARG,
_("no target device %s"), disk->dst);
break;
}
virDomainDiskDefFree(detach);
ret = 0;
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("persistent detach of device is not supported"));
break;
}
return ret;
}
static int
libxlDomainUpdateDeviceLive(libxlDomainObjPrivatePtr priv,
virDomainObjPtr vm, virDomainDeviceDefPtr dev)
{
virDomainDiskDefPtr disk;
int ret = -1;
switch (dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
disk = dev->data.disk;
switch (disk->device) {
case VIR_DOMAIN_DISK_DEVICE_CDROM:
ret = libxlDomainChangeEjectableMedia(priv, vm, disk);
if (ret == 0)
dev->data.disk = NULL;
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("disk bus '%s' cannot be updated."),
virDomainDiskBusTypeToString(disk->bus));
break;
}
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("device type '%s' cannot be updated"),
virDomainDeviceTypeToString(dev->type));
break;
}
return ret;
}
static int
libxlDomainUpdateDeviceConfig(virDomainDefPtr vmdef, virDomainDeviceDefPtr dev)
{
virDomainDiskDefPtr orig;
virDomainDiskDefPtr disk;
int idx;
int ret = -1;
switch (dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
disk = dev->data.disk;
if ((idx = virDomainDiskIndexByName(vmdef, disk->dst, false)) < 0) {
virReportError(VIR_ERR_INVALID_ARG,
_("target %s doesn't exist."), disk->dst);
goto cleanup;
}
orig = vmdef->disks[idx];
if (!(orig->device == VIR_DOMAIN_DISK_DEVICE_CDROM)) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("this disk doesn't support update"));
goto cleanup;
}
if (virDomainDiskSetSource(orig, virDomainDiskGetSource(disk)) < 0)
goto cleanup;
virDomainDiskSetType(orig, virDomainDiskGetType(disk));
virDomainDiskSetFormat(orig, virDomainDiskGetFormat(disk));
if (virDomainDiskSetDriver(orig, virDomainDiskGetDriver(disk)) < 0)
goto cleanup;
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("persistent update of device is not supported"));
goto cleanup;
}
ret = 0;
cleanup:
return ret;
}
static int
libxlDomainAttachDeviceFlags(virDomainPtr dom, const char *xml,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm = NULL;
virDomainDefPtr vmdef = NULL;
virDomainDeviceDefPtr dev = NULL;
libxlDomainObjPrivatePtr priv;
int ret = -1;
virCheckFlags(VIR_DOMAIN_DEVICE_MODIFY_LIVE |
VIR_DOMAIN_DEVICE_MODIFY_CONFIG, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainAttachDeviceFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjIsActive(vm)) {
if (flags == VIR_DOMAIN_DEVICE_MODIFY_CURRENT)
flags |= VIR_DOMAIN_DEVICE_MODIFY_LIVE;
} else {
if (flags == VIR_DOMAIN_DEVICE_MODIFY_CURRENT)
flags |= VIR_DOMAIN_DEVICE_MODIFY_CONFIG;
/* check consistency between flags and the vm state */
if (flags & VIR_DOMAIN_DEVICE_MODIFY_LIVE) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("Domain is not running"));
goto endjob;
}
}
if ((flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) && !vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cannot modify device on transient domain"));
goto endjob;
}
priv = vm->privateData;
if (flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) {
if (!(dev = virDomainDeviceDefParse(xml, vm->def,
cfg->caps, driver->xmlopt,
VIR_DOMAIN_XML_INACTIVE)))
goto endjob;
/* Make a copy for updated domain. */
if (!(vmdef = virDomainObjCopyPersistentDef(vm, cfg->caps,
driver->xmlopt)))
goto endjob;
if ((ret = libxlDomainAttachDeviceConfig(vmdef, dev)) < 0)
goto endjob;
} else {
ret = 0;
}
if (flags & VIR_DOMAIN_DEVICE_MODIFY_LIVE) {
/* If dev exists it was created to modify the domain config. Free it. */
virDomainDeviceDefFree(dev);
if (!(dev = virDomainDeviceDefParse(xml, vm->def,
cfg->caps, driver->xmlopt,
VIR_DOMAIN_XML_INACTIVE)))
goto endjob;
if ((ret = libxlDomainAttachDeviceLive(driver, priv, vm, dev)) < 0)
goto endjob;
/*
* update domain status forcibly because the domain status may be
* changed even if we attach the device failed.
*/
if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm) < 0)
ret = -1;
}
/* Finally, if no error until here, we can save config. */
if (!ret && (flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG)) {
ret = virDomainSaveConfig(cfg->configDir, vmdef);
if (!ret) {
virDomainObjAssignDef(vm, vmdef, false, NULL);
vmdef = NULL;
}
}
endjob:
if (!libxlDomainObjEndJob(driver, vm))
vm = NULL;
cleanup:
virDomainDefFree(vmdef);
virDomainDeviceDefFree(dev);
if (vm)
virObjectUnlock(vm);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainAttachDevice(virDomainPtr dom, const char *xml)
{
return libxlDomainAttachDeviceFlags(dom, xml,
VIR_DOMAIN_DEVICE_MODIFY_LIVE);
}
static int
libxlDomainDetachDeviceFlags(virDomainPtr dom, const char *xml,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm = NULL;
virDomainDefPtr vmdef = NULL;
virDomainDeviceDefPtr dev = NULL;
libxlDomainObjPrivatePtr priv;
int ret = -1;
virCheckFlags(VIR_DOMAIN_DEVICE_MODIFY_LIVE |
VIR_DOMAIN_DEVICE_MODIFY_CONFIG, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainDetachDeviceFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjIsActive(vm)) {
if (flags == VIR_DOMAIN_DEVICE_MODIFY_CURRENT)
flags |= VIR_DOMAIN_DEVICE_MODIFY_LIVE;
} else {
if (flags == VIR_DOMAIN_DEVICE_MODIFY_CURRENT)
flags |= VIR_DOMAIN_DEVICE_MODIFY_CONFIG;
/* check consistency between flags and the vm state */
if (flags & VIR_DOMAIN_DEVICE_MODIFY_LIVE) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("Domain is not running"));
goto endjob;
}
}
if ((flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) && !vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cannot modify device on transient domain"));
goto endjob;
}
priv = vm->privateData;
if (flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) {
if (!(dev = virDomainDeviceDefParse(xml, vm->def,
cfg->caps, driver->xmlopt,
VIR_DOMAIN_XML_INACTIVE)))
goto endjob;
/* Make a copy for updated domain. */
if (!(vmdef = virDomainObjCopyPersistentDef(vm, cfg->caps,
driver->xmlopt)))
goto endjob;
if ((ret = libxlDomainDetachDeviceConfig(vmdef, dev)) < 0)
goto endjob;
} else {
ret = 0;
}
if (flags & VIR_DOMAIN_DEVICE_MODIFY_LIVE) {
/* If dev exists it was created to modify the domain config. Free it. */
virDomainDeviceDefFree(dev);
if (!(dev = virDomainDeviceDefParse(xml, vm->def,
cfg->caps, driver->xmlopt,
VIR_DOMAIN_XML_INACTIVE)))
goto endjob;
if ((ret = libxlDomainDetachDeviceLive(driver, priv, vm, dev)) < 0)
goto endjob;
/*
* update domain status forcibly because the domain status may be
* changed even if we attach the device failed.
*/
if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm) < 0)
ret = -1;
}
/* Finally, if no error until here, we can save config. */
if (!ret && (flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG)) {
ret = virDomainSaveConfig(cfg->configDir, vmdef);
if (!ret) {
virDomainObjAssignDef(vm, vmdef, false, NULL);
vmdef = NULL;
}
}
endjob:
if (!libxlDomainObjEndJob(driver, vm))
vm = NULL;
cleanup:
virDomainDefFree(vmdef);
virDomainDeviceDefFree(dev);
if (vm)
virObjectUnlock(vm);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainDetachDevice(virDomainPtr dom, const char *xml)
{
return libxlDomainDetachDeviceFlags(dom, xml,
VIR_DOMAIN_DEVICE_MODIFY_LIVE);
}
static int
libxlDomainUpdateDeviceFlags(virDomainPtr dom, const char *xml,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm = NULL;
virDomainDefPtr vmdef = NULL;
virDomainDeviceDefPtr dev = NULL;
libxlDomainObjPrivatePtr priv;
int ret = -1;
virCheckFlags(VIR_DOMAIN_DEVICE_MODIFY_LIVE |
VIR_DOMAIN_DEVICE_MODIFY_CONFIG, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainUpdateDeviceFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (virDomainObjIsActive(vm)) {
if (flags == VIR_DOMAIN_DEVICE_MODIFY_CURRENT)
flags |= VIR_DOMAIN_DEVICE_MODIFY_LIVE;
} else {
if (flags == VIR_DOMAIN_DEVICE_MODIFY_CURRENT)
flags |= VIR_DOMAIN_DEVICE_MODIFY_CONFIG;
/* check consistency between flags and the vm state */
if (flags & VIR_DOMAIN_DEVICE_MODIFY_LIVE) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("Domain is not running"));
goto cleanup;
}
}
if ((flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) && !vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cannot modify device on transient domain"));
goto cleanup;
}
priv = vm->privateData;
if (flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) {
if (!(dev = virDomainDeviceDefParse(xml, vm->def,
cfg->caps, driver->xmlopt,
VIR_DOMAIN_XML_INACTIVE)))
goto cleanup;
/* Make a copy for updated domain. */
if (!(vmdef = virDomainObjCopyPersistentDef(vm, cfg->caps,
driver->xmlopt)))
goto cleanup;
if ((ret = libxlDomainUpdateDeviceConfig(vmdef, dev)) < 0)
goto cleanup;
} else {
ret = 0;
}
if (flags & VIR_DOMAIN_DEVICE_MODIFY_LIVE) {
/* If dev exists it was created to modify the domain config. Free it. */
virDomainDeviceDefFree(dev);
if (!(dev = virDomainDeviceDefParse(xml, vm->def,
cfg->caps, driver->xmlopt,
VIR_DOMAIN_XML_INACTIVE)))
goto cleanup;
if ((ret = libxlDomainUpdateDeviceLive(priv, vm, dev)) < 0)
goto cleanup;
/*
* update domain status forcibly because the domain status may be
* changed even if we attach the device failed.
*/
if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm) < 0)
ret = -1;
}
/* Finally, if no error until here, we can save config. */
if (!ret && (flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG)) {
ret = virDomainSaveConfig(cfg->configDir, vmdef);
if (!ret) {
virDomainObjAssignDef(vm, vmdef, false, NULL);
vmdef = NULL;
}
}
cleanup:
virDomainDefFree(vmdef);
virDomainDeviceDefFree(dev);
if (vm)
virObjectUnlock(vm);
virObjectUnref(cfg);
return ret;
}
static unsigned long long
libxlNodeGetFreeMemory(virConnectPtr conn)
{
libxl_physinfo phy_info;
libxlDriverPrivatePtr driver = conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
unsigned long long ret = 0;
if (virNodeGetFreeMemoryEnsureACL(conn) < 0)
goto cleanup;
if (libxl_get_physinfo(cfg->ctx, &phy_info)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("libxl_get_physinfo_info failed"));
goto cleanup;
}
ret = phy_info.free_pages * cfg->verInfo->pagesize;
cleanup:
virObjectUnref(cfg);
return ret;
}
static int
libxlNodeGetCellsFreeMemory(virConnectPtr conn,
unsigned long long *freeMems,
int startCell,
int maxCells)
{
int n, lastCell, numCells;
int ret = -1, nr_nodes = 0;
libxl_numainfo *numa_info = NULL;
libxlDriverPrivatePtr driver = conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
if (virNodeGetCellsFreeMemoryEnsureACL(conn) < 0)
goto cleanup;
numa_info = libxl_get_numainfo(cfg->ctx, &nr_nodes);
if (numa_info == NULL || nr_nodes == 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("libxl_get_numainfo failed"));
goto cleanup;
}
/* Check/sanitize the cell range */
if (startCell >= nr_nodes) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("start cell %d out of range (0-%d)"),
startCell, nr_nodes - 1);
goto cleanup;
}
lastCell = startCell + maxCells - 1;
if (lastCell >= nr_nodes)
lastCell = nr_nodes - 1;
for (numCells = 0, n = startCell; n <= lastCell; n++) {
if (numa_info[n].size == LIBXL_NUMAINFO_INVALID_ENTRY)
freeMems[numCells++] = 0;
else
freeMems[numCells++] = numa_info[n].free;
}
ret = numCells;
cleanup:
libxl_numainfo_list_free(numa_info, nr_nodes);
virObjectUnref(cfg);
return ret;
}
static int
libxlConnectDomainEventRegister(virConnectPtr conn,
virConnectDomainEventCallback callback,
void *opaque,
virFreeCallback freecb)
{
libxlDriverPrivatePtr driver = conn->privateData;
if (virConnectDomainEventRegisterEnsureACL(conn) < 0)
return -1;
if (virDomainEventStateRegister(conn,
driver->domainEventState,
callback, opaque, freecb) < 0)
return -1;
return 0;
}
static int
libxlConnectDomainEventDeregister(virConnectPtr conn,
virConnectDomainEventCallback callback)
{
libxlDriverPrivatePtr driver = conn->privateData;
if (virConnectDomainEventDeregisterEnsureACL(conn) < 0)
return -1;
if (virDomainEventStateDeregister(conn,
driver->domainEventState,
callback) < 0)
return -1;
return 0;
}
static int
libxlDomainGetAutostart(virDomainPtr dom, int *autostart)
{
virDomainObjPtr vm;
int ret = -1;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetAutostartEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
*autostart = vm->autostart;
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainSetAutostart(virDomainPtr dom, int autostart)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
char *configFile = NULL, *autostartLink = NULL;
int ret = -1;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainSetAutostartEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (!vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cannot set autostart for transient domain"));
goto endjob;
}
autostart = (autostart != 0);
if (vm->autostart != autostart) {
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;
}
ret = 0;
endjob:
if (!libxlDomainObjEndJob(driver, vm))
vm = NULL;
cleanup:
VIR_FREE(configFile);
VIR_FREE(autostartLink);
if (vm)
virObjectUnlock(vm);
virObjectUnref(cfg);
return ret;
}
static char *
libxlDomainGetSchedulerType(virDomainPtr dom, int *nparams)
{
libxlDomainObjPrivatePtr priv;
virDomainObjPtr vm;
char * ret = NULL;
const char *name = NULL;
libxl_scheduler sched_id;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetSchedulerTypeEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("Domain is not running"));
goto cleanup;
}
priv = vm->privateData;
sched_id = libxl_get_scheduler(priv->ctx);
if (nparams)
*nparams = 0;
switch (sched_id) {
case LIBXL_SCHEDULER_SEDF:
name = "sedf";
break;
case LIBXL_SCHEDULER_CREDIT:
name = "credit";
if (nparams)
*nparams = XEN_SCHED_CREDIT_NPARAM;
break;
case LIBXL_SCHEDULER_CREDIT2:
name = "credit2";
break;
case LIBXL_SCHEDULER_ARINC653:
name = "arinc653";
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to get scheduler id for domain '%d'"
" with libxenlight"), vm->def->id);
goto cleanup;
}
ignore_value(VIR_STRDUP(ret, name));
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainGetSchedulerParametersFlags(virDomainPtr dom,
virTypedParameterPtr params,
int *nparams,
unsigned int flags)
{
libxlDomainObjPrivatePtr priv;
virDomainObjPtr vm;
libxl_domain_sched_params sc_info;
libxl_scheduler sched_id;
int ret = -1;
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 = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetSchedulerParametersFlagsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("Domain is not running"));
goto cleanup;
}
priv = vm->privateData;
sched_id = libxl_get_scheduler(priv->ctx);
if (sched_id != LIBXL_SCHEDULER_CREDIT) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Only 'credit' scheduler is supported"));
goto cleanup;
}
if (libxl_domain_sched_params_get(priv->ctx, vm->def->id, &sc_info) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to get scheduler parameters for domain '%d'"
" with libxenlight"), vm->def->id);
goto cleanup;
}
if (virTypedParameterAssign(&params[0], VIR_DOMAIN_SCHEDULER_WEIGHT,
VIR_TYPED_PARAM_UINT, sc_info.weight) < 0)
goto cleanup;
if (*nparams > 1) {
if (virTypedParameterAssign(&params[0], VIR_DOMAIN_SCHEDULER_CAP,
VIR_TYPED_PARAM_UINT, sc_info.cap) < 0)
goto cleanup;
}
if (*nparams > XEN_SCHED_CREDIT_NPARAM)
*nparams = XEN_SCHED_CREDIT_NPARAM;
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainGetSchedulerParameters(virDomainPtr dom, virTypedParameterPtr params,
int *nparams)
{
return libxlDomainGetSchedulerParametersFlags(dom, params, nparams, 0);
}
static int
libxlDomainSetSchedulerParametersFlags(virDomainPtr dom,
virTypedParameterPtr params,
int nparams,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDomainObjPrivatePtr priv;
virDomainObjPtr vm;
libxl_domain_sched_params sc_info;
int sched_id;
size_t i;
int ret = -1;
virCheckFlags(0, -1);
if (virTypedParamsValidate(params, nparams,
VIR_DOMAIN_SCHEDULER_WEIGHT,
VIR_TYPED_PARAM_UINT,
VIR_DOMAIN_SCHEDULER_CAP,
VIR_TYPED_PARAM_UINT,
NULL) < 0)
return -1;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainSetSchedulerParametersFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("Domain is not running"));
goto endjob;
}
priv = vm->privateData;
sched_id = libxl_get_scheduler(priv->ctx);
if (sched_id != LIBXL_SCHEDULER_CREDIT) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Only 'credit' scheduler is supported"));
goto endjob;
}
if (libxl_domain_sched_params_get(priv->ctx, vm->def->id, &sc_info) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to get scheduler parameters for domain '%d'"
" with libxenlight"), vm->def->id);
goto endjob;
}
for (i = 0; i < nparams; ++i) {
virTypedParameterPtr param = &params[i];
if (STREQ(param->field, VIR_DOMAIN_SCHEDULER_WEIGHT))
sc_info.weight = params[i].value.ui;
else if (STREQ(param->field, VIR_DOMAIN_SCHEDULER_CAP))
sc_info.cap = params[i].value.ui;
}
if (libxl_domain_sched_params_set(priv->ctx, vm->def->id, &sc_info) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to set scheduler parameters for domain '%d'"
" with libxenlight"), vm->def->id);
goto endjob;
}
ret = 0;
endjob:
if (!libxlDomainObjEndJob(driver, vm))
vm = NULL;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainOpenConsole(virDomainPtr dom,
const char *dev_name,
virStreamPtr st,
unsigned int flags)
{
virDomainObjPtr vm = NULL;
int ret = -1;
virDomainChrDefPtr chr = NULL;
libxlDomainObjPrivatePtr priv;
char *console = NULL;
virCheckFlags(VIR_DOMAIN_CONSOLE_FORCE, -1);
if (dev_name) {
/* XXX support device aliases in future */
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Named device aliases are not supported"));
goto cleanup;
}
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainOpenConsoleEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain is not running"));
goto cleanup;
}
priv = vm->privateData;
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"),
NULLSTR(dev_name));
goto cleanup;
}
ret = libxl_primary_console_get_tty(priv->ctx, vm->def->id, &console);
if (ret)
goto cleanup;
if (VIR_STRDUP(chr->source.data.file.path, console) < 0)
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:
VIR_FREE(console);
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainSetSchedulerParameters(virDomainPtr dom, virTypedParameterPtr params,
int nparams)
{
return libxlDomainSetSchedulerParametersFlags(dom, params, nparams, 0);
}
/* NUMA node affinity information is available through libxl
* starting from Xen 4.3. */
#ifdef LIBXL_HAVE_DOMAIN_NODEAFFINITY
/* Number of Xen NUMA parameters */
# define LIBXL_NUMA_NPARAM 2
static int
libxlDomainGetNumaParameters(virDomainPtr dom,
virTypedParameterPtr params,
int *nparams,
unsigned int flags)
{
libxlDomainObjPrivatePtr priv;
virDomainObjPtr vm;
libxl_bitmap nodemap;
virBitmapPtr nodes = NULL;
char *nodeset = NULL;
int rc, ret = -1;
size_t i, j;
/* In Xen 4.3, it is possible to query the NUMA node affinity of a domain
* via libxl, but not to change it. We therefore only allow AFFECT_LIVE. */
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
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;
libxl_bitmap_init(&nodemap);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetNumaParametersEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("Domain is not running"));
goto cleanup;
}
priv = vm->privateData;
if ((*nparams) == 0) {
*nparams = LIBXL_NUMA_NPARAM;
ret = 0;
goto cleanup;
}
for (i = 0; i < LIBXL_NUMA_NPARAM && i < *nparams; i++) {
virMemoryParameterPtr param = &params[i];
int numnodes;
switch (i) {
case 0:
/* NUMA mode */
/* Xen implements something that is really close to numactl's
* 'interleave' policy (see `man 8 numactl' for details). */
if (virTypedParameterAssign(param, VIR_DOMAIN_NUMA_MODE,
VIR_TYPED_PARAM_INT,
VIR_DOMAIN_NUMATUNE_MEM_INTERLEAVE) < 0)
goto cleanup;
break;
case 1:
/* Node affinity */
/* Let's allocate both libxl and libvirt bitmaps */
numnodes = libxl_get_max_nodes(priv->ctx);
if (numnodes <= 0)
goto cleanup;
if (libxl_node_bitmap_alloc(priv->ctx, &nodemap, 0) ||
!(nodes = virBitmapNew(numnodes))) {
virReportOOMError();
goto cleanup;
}
rc = libxl_domain_get_nodeaffinity(priv->ctx,
vm->def->id,
&nodemap);
if (rc != 0) {
virReportSystemError(-rc, "%s",
_("unable to get numa affinity"));
goto cleanup;
}
/* First, we convert libxl_bitmap into virBitmap. After that,
* we format virBitmap as a string that can be returned. */
virBitmapClearAll(nodes);
libxl_for_each_set_bit(j, nodemap) {
if (virBitmapSetBit(nodes, j)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Node %zu out of range"), j);
goto cleanup;
}
}
nodeset = virBitmapFormat(nodes);
if (!nodeset && VIR_STRDUP(nodeset, "") < 0)
goto cleanup;
if (virTypedParameterAssign(param, VIR_DOMAIN_NUMA_NODESET,
VIR_TYPED_PARAM_STRING, nodeset) < 0)
goto cleanup;
nodeset = NULL;
break;
}
}
if (*nparams > LIBXL_NUMA_NPARAM)
*nparams = LIBXL_NUMA_NPARAM;
ret = 0;
cleanup:
VIR_FREE(nodeset);
virBitmapFree(nodes);
libxl_bitmap_dispose(&nodemap);
if (vm)
virObjectUnlock(vm);
return ret;
}
#endif
static int
libxlDomainIsActive(virDomainPtr dom)
{
virDomainObjPtr obj;
int ret = -1;
if (!(obj = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainIsActiveEnsureACL(dom->conn, obj->def) < 0)
goto cleanup;
ret = virDomainObjIsActive(obj);
cleanup:
if (obj)
virObjectUnlock(obj);
return ret;
}
static int
libxlDomainIsPersistent(virDomainPtr dom)
{
virDomainObjPtr obj;
int ret = -1;
if (!(obj = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainIsPersistentEnsureACL(dom->conn, obj->def) < 0)
goto cleanup;
ret = obj->persistent;
cleanup:
if (obj)
virObjectUnlock(obj);
return ret;
}
static int
libxlDomainIsUpdated(virDomainPtr dom)
{
virDomainObjPtr vm;
int ret = -1;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainIsUpdatedEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
ret = vm->updated;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlConnectDomainEventRegisterAny(virConnectPtr conn, virDomainPtr dom, int eventID,
virConnectDomainEventGenericCallback callback,
void *opaque, virFreeCallback freecb)
{
libxlDriverPrivatePtr driver = conn->privateData;
int ret;
if (virConnectDomainEventRegisterAnyEnsureACL(conn) < 0)
return -1;
if (virDomainEventStateRegisterID(conn,
driver->domainEventState,
dom, eventID, callback, opaque,
freecb, &ret) < 0)
ret = -1;
return ret;
}
static int
libxlConnectDomainEventDeregisterAny(virConnectPtr conn, int callbackID)
{
libxlDriverPrivatePtr driver = conn->privateData;
if (virConnectDomainEventDeregisterAnyEnsureACL(conn) < 0)
return -1;
if (virObjectEventStateDeregisterID(conn,
driver->domainEventState,
callbackID) < 0)
return -1;
return 0;
}
static int
libxlConnectIsAlive(virConnectPtr conn ATTRIBUTE_UNUSED)
{
return 1;
}
static int
libxlConnectListAllDomains(virConnectPtr conn,
virDomainPtr **domains,
unsigned int flags)
{
libxlDriverPrivatePtr driver = conn->privateData;
int ret = -1;
virCheckFlags(VIR_CONNECT_LIST_DOMAINS_FILTERS_ALL, -1);
if (virConnectListAllDomainsEnsureACL(conn) < 0)
return -1;
ret = virDomainObjListExport(driver->domains, conn, domains,
virConnectListAllDomainsCheckACL, flags);
return ret;
}
/* Which features are supported by this driver? */
static int
libxlConnectSupportsFeature(virConnectPtr conn, int feature)
{
if (virConnectSupportsFeatureEnsureACL(conn) < 0)
return -1;
switch (feature) {
case VIR_DRV_FEATURE_TYPED_PARAM_STRING:
return 1;
default:
return 0;
}
}
static int
libxlNodeDeviceGetPCIInfo(virNodeDeviceDefPtr def,
unsigned *domain,
unsigned *bus,
unsigned *slot,
unsigned *function)
{
virNodeDevCapsDefPtr cap;
cap = def->caps;
while (cap) {
if (cap->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
libxlNodeDeviceDetachFlags(virNodeDevicePtr dev,
const char *driverName,
unsigned int flags)
{
virPCIDevicePtr pci = NULL;
unsigned domain = 0, bus = 0, slot = 0, function = 0;
int ret = -1;
virNodeDeviceDefPtr def = NULL;
char *xml = NULL;
libxlDriverPrivatePtr driver = dev->conn->privateData;
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
virCheckFlags(0, -1);
xml = virNodeDeviceGetXMLDesc(dev, 0);
if (!xml)
goto cleanup;
def = virNodeDeviceDefParseString(xml, EXISTING_DEVICE, NULL);
if (!def)
goto cleanup;
if (virNodeDeviceDetachFlagsEnsureACL(dev->conn, def) < 0)
goto cleanup;
if (libxlNodeDeviceGetPCIInfo(def, &domain, &bus, &slot, &function) < 0)
goto cleanup;
pci = virPCIDeviceNew(domain, bus, slot, function);
if (!pci)
goto cleanup;
if (!driverName || STREQ(driverName, "xen")) {
if (virPCIDeviceSetStubDriver(pci, "pciback") < 0)
goto cleanup;
} else {
virReportError(VIR_ERR_INVALID_ARG,
_("unsupported driver name '%s'"), driverName);
goto cleanup;
}
if (virHostdevPCINodeDeviceDetach(hostdev_mgr, pci) < 0)
goto cleanup;
ret = 0;
cleanup:
virPCIDeviceFree(pci);
virNodeDeviceDefFree(def);
VIR_FREE(xml);
return ret;
}
static int
libxlNodeDeviceDettach(virNodeDevicePtr dev)
{
return libxlNodeDeviceDetachFlags(dev, NULL, 0);
}
static int
libxlNodeDeviceReAttach(virNodeDevicePtr dev)
{
virPCIDevicePtr pci = NULL;
unsigned domain = 0, bus = 0, slot = 0, function = 0;
int ret = -1;
virNodeDeviceDefPtr def = NULL;
char *xml = NULL;
libxlDriverPrivatePtr driver = dev->conn->privateData;
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
xml = virNodeDeviceGetXMLDesc(dev, 0);
if (!xml)
goto cleanup;
def = virNodeDeviceDefParseString(xml, EXISTING_DEVICE, NULL);
if (!def)
goto cleanup;
if (virNodeDeviceReAttachEnsureACL(dev->conn, def) < 0)
goto cleanup;
if (libxlNodeDeviceGetPCIInfo(def, &domain, &bus, &slot, &function) < 0)
goto cleanup;
pci = virPCIDeviceNew(domain, bus, slot, function);
if (!pci)
goto cleanup;
if (virHostdevPCINodeDeviceReAttach(hostdev_mgr, pci) < 0)
goto cleanup;
ret = 0;
cleanup:
virPCIDeviceFree(pci);
virNodeDeviceDefFree(def);
VIR_FREE(xml);
return ret;
}
static int
libxlNodeDeviceReset(virNodeDevicePtr dev)
{
virPCIDevicePtr pci = NULL;
unsigned domain = 0, bus = 0, slot = 0, function = 0;
int ret = -1;
virNodeDeviceDefPtr def = NULL;
char *xml = NULL;
libxlDriverPrivatePtr driver = dev->conn->privateData;
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
xml = virNodeDeviceGetXMLDesc(dev, 0);
if (!xml)
goto cleanup;
def = virNodeDeviceDefParseString(xml, EXISTING_DEVICE, NULL);
if (!def)
goto cleanup;
if (virNodeDeviceResetEnsureACL(dev->conn, def) < 0)
goto cleanup;
if (libxlNodeDeviceGetPCIInfo(def, &domain, &bus, &slot, &function) < 0)
goto cleanup;
pci = virPCIDeviceNew(domain, bus, slot, function);
if (!pci)
goto cleanup;
if (virHostdevPCINodeDeviceReset(hostdev_mgr, pci) < 0)
goto cleanup;
ret = 0;
cleanup:
virPCIDeviceFree(pci);
virNodeDeviceDefFree(def);
VIR_FREE(xml);
return ret;
}
static virDriver libxlDriver = {
.no = VIR_DRV_LIBXL,
.name = LIBXL_DRIVER_NAME,
.connectOpen = libxlConnectOpen, /* 0.9.0 */
.connectClose = libxlConnectClose, /* 0.9.0 */
.connectGetType = libxlConnectGetType, /* 0.9.0 */
.connectGetVersion = libxlConnectGetVersion, /* 0.9.0 */
.connectGetHostname = libxlConnectGetHostname, /* 0.9.0 */
.connectGetSysinfo = libxlConnectGetSysinfo, /* 1.1.0 */
.connectGetMaxVcpus = libxlConnectGetMaxVcpus, /* 0.9.0 */
.nodeGetInfo = libxlNodeGetInfo, /* 0.9.0 */
.connectGetCapabilities = libxlConnectGetCapabilities, /* 0.9.0 */
.connectListDomains = libxlConnectListDomains, /* 0.9.0 */
.connectNumOfDomains = libxlConnectNumOfDomains, /* 0.9.0 */
.connectListAllDomains = libxlConnectListAllDomains, /* 0.9.13 */
.domainCreateXML = libxlDomainCreateXML, /* 0.9.0 */
.domainLookupByID = libxlDomainLookupByID, /* 0.9.0 */
.domainLookupByUUID = libxlDomainLookupByUUID, /* 0.9.0 */
.domainLookupByName = libxlDomainLookupByName, /* 0.9.0 */
.domainSuspend = libxlDomainSuspend, /* 0.9.0 */
.domainResume = libxlDomainResume, /* 0.9.0 */
.domainShutdown = libxlDomainShutdown, /* 0.9.0 */
.domainShutdownFlags = libxlDomainShutdownFlags, /* 0.9.10 */
.domainReboot = libxlDomainReboot, /* 0.9.0 */
.domainDestroy = libxlDomainDestroy, /* 0.9.0 */
.domainDestroyFlags = libxlDomainDestroyFlags, /* 0.9.4 */
.domainGetOSType = libxlDomainGetOSType, /* 0.9.0 */
.domainGetMaxMemory = libxlDomainGetMaxMemory, /* 0.9.0 */
.domainSetMaxMemory = libxlDomainSetMaxMemory, /* 0.9.2 */
.domainSetMemory = libxlDomainSetMemory, /* 0.9.0 */
.domainSetMemoryFlags = libxlDomainSetMemoryFlags, /* 0.9.0 */
.domainGetInfo = libxlDomainGetInfo, /* 0.9.0 */
.domainGetState = libxlDomainGetState, /* 0.9.2 */
.domainSave = libxlDomainSave, /* 0.9.2 */
.domainSaveFlags = libxlDomainSaveFlags, /* 0.9.4 */
.domainRestore = libxlDomainRestore, /* 0.9.2 */
.domainRestoreFlags = libxlDomainRestoreFlags, /* 0.9.4 */
.domainCoreDump = libxlDomainCoreDump, /* 0.9.2 */
.domainSetVcpus = libxlDomainSetVcpus, /* 0.9.0 */
.domainSetVcpusFlags = libxlDomainSetVcpusFlags, /* 0.9.0 */
.domainGetVcpusFlags = libxlDomainGetVcpusFlags, /* 0.9.0 */
.domainPinVcpu = libxlDomainPinVcpu, /* 0.9.0 */
.domainPinVcpuFlags = libxlDomainPinVcpuFlags, /* 1.2.1 */
.domainGetVcpus = libxlDomainGetVcpus, /* 0.9.0 */
.domainGetVcpuPinInfo = libxlDomainGetVcpuPinInfo, /* 1.2.1 */
.domainGetXMLDesc = libxlDomainGetXMLDesc, /* 0.9.0 */
.connectDomainXMLFromNative = libxlConnectDomainXMLFromNative, /* 0.9.0 */
.connectDomainXMLToNative = libxlConnectDomainXMLToNative, /* 0.9.0 */
.connectListDefinedDomains = libxlConnectListDefinedDomains, /* 0.9.0 */
.connectNumOfDefinedDomains = libxlConnectNumOfDefinedDomains, /* 0.9.0 */
.domainCreate = libxlDomainCreate, /* 0.9.0 */
.domainCreateWithFlags = libxlDomainCreateWithFlags, /* 0.9.0 */
.domainDefineXML = libxlDomainDefineXML, /* 0.9.0 */
.domainUndefine = libxlDomainUndefine, /* 0.9.0 */
.domainUndefineFlags = libxlDomainUndefineFlags, /* 0.9.4 */
.domainAttachDevice = libxlDomainAttachDevice, /* 0.9.2 */
.domainAttachDeviceFlags = libxlDomainAttachDeviceFlags, /* 0.9.2 */
.domainDetachDevice = libxlDomainDetachDevice, /* 0.9.2 */
.domainDetachDeviceFlags = libxlDomainDetachDeviceFlags, /* 0.9.2 */
.domainUpdateDeviceFlags = libxlDomainUpdateDeviceFlags, /* 0.9.2 */
.domainGetAutostart = libxlDomainGetAutostart, /* 0.9.0 */
.domainSetAutostart = libxlDomainSetAutostart, /* 0.9.0 */
.domainGetSchedulerType = libxlDomainGetSchedulerType, /* 0.9.0 */
.domainGetSchedulerParameters = libxlDomainGetSchedulerParameters, /* 0.9.0 */
.domainGetSchedulerParametersFlags = libxlDomainGetSchedulerParametersFlags, /* 0.9.2 */
.domainSetSchedulerParameters = libxlDomainSetSchedulerParameters, /* 0.9.0 */
.domainSetSchedulerParametersFlags = libxlDomainSetSchedulerParametersFlags, /* 0.9.2 */
#ifdef LIBXL_HAVE_DOMAIN_NODEAFFINITY
.domainGetNumaParameters = libxlDomainGetNumaParameters, /* 1.1.1 */
#endif
.nodeGetFreeMemory = libxlNodeGetFreeMemory, /* 0.9.0 */
.nodeGetCellsFreeMemory = libxlNodeGetCellsFreeMemory, /* 1.1.1 */
.connectDomainEventRegister = libxlConnectDomainEventRegister, /* 0.9.0 */
.connectDomainEventDeregister = libxlConnectDomainEventDeregister, /* 0.9.0 */
.domainManagedSave = libxlDomainManagedSave, /* 0.9.2 */
.domainHasManagedSaveImage = libxlDomainHasManagedSaveImage, /* 0.9.2 */
.domainManagedSaveRemove = libxlDomainManagedSaveRemove, /* 0.9.2 */
.domainOpenConsole = libxlDomainOpenConsole, /* 1.1.2 */
.domainIsActive = libxlDomainIsActive, /* 0.9.0 */
.domainIsPersistent = libxlDomainIsPersistent, /* 0.9.0 */
.domainIsUpdated = libxlDomainIsUpdated, /* 0.9.0 */
.connectDomainEventRegisterAny = libxlConnectDomainEventRegisterAny, /* 0.9.0 */
.connectDomainEventDeregisterAny = libxlConnectDomainEventDeregisterAny, /* 0.9.0 */
.connectIsAlive = libxlConnectIsAlive, /* 0.9.8 */
.connectSupportsFeature = libxlConnectSupportsFeature, /* 1.1.1 */
.nodeDeviceDettach = libxlNodeDeviceDettach, /* 1.2.3 */
.nodeDeviceDetachFlags = libxlNodeDeviceDetachFlags, /* 1.2.3 */
.nodeDeviceReAttach = libxlNodeDeviceReAttach, /* 1.2.3 */
.nodeDeviceReset = libxlNodeDeviceReset, /* 1.2.3 */
};
static virStateDriver libxlStateDriver = {
.name = "LIBXL",
.stateInitialize = libxlStateInitialize,
.stateAutoStart = libxlStateAutoStart,
.stateCleanup = libxlStateCleanup,
.stateReload = libxlStateReload,
};
int
libxlRegister(void)
{
if (virRegisterDriver(&libxlDriver) < 0)
return -1;
if (virRegisterStateDriver(&libxlStateDriver) < 0)
return -1;
return 0;
}
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