mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2025-02-22 19:32:19 +00:00
libxl: move libxlVmStart to libxl_domain
Move libxlVmStart from libxl_driver to libxl_domain for use by other libxl modules. For consistency, rename to libxlDomainStart. Signed-off-by: Jim Fehlig <jfehlig@suse.com>
This commit is contained in:
Jim Fehlig
parent
024e4bb400
commit
3182448f4c
@ -893,3 +893,184 @@ libxlDomainFreeMem(libxlDomainObjPrivatePtr priv, libxl_domain_config *d_config)
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return ret;
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}
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/*
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* Start a domain through libxenlight.
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*
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* virDomainObjPtr must be locked on invocation
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*/
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int
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libxlDomainStart(libxlDriverPrivatePtr driver, virDomainObjPtr vm,
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bool start_paused, int restore_fd)
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{
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libxl_domain_config d_config;
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virDomainDefPtr def = NULL;
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virObjectEventPtr event = NULL;
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libxlSavefileHeader hdr;
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int ret = -1;
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uint32_t domid = 0;
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char *dom_xml = NULL;
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char *managed_save_path = NULL;
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int managed_save_fd = -1;
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libxlDomainObjPrivatePtr priv = vm->privateData;
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libxlDriverConfigPtr cfg;
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#ifdef LIBXL_HAVE_DOMAIN_CREATE_RESTORE_PARAMS
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libxl_domain_restore_params params;
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#endif
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virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
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if (libxlDomainObjPrivateInitCtx(vm) < 0)
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return ret;
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if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
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return ret;
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cfg = libxlDriverConfigGet(driver);
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/* If there is a managed saved state restore it instead of starting
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* from scratch. The old state is removed once the restoring succeeded. */
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if (restore_fd < 0) {
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managed_save_path = libxlDomainManagedSavePath(driver, vm);
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if (managed_save_path == NULL)
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goto endjob;
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if (virFileExists(managed_save_path)) {
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managed_save_fd = libxlDomainSaveImageOpen(driver, cfg,
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managed_save_path,
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&def, &hdr);
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if (managed_save_fd < 0)
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goto endjob;
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restore_fd = managed_save_fd;
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if (STRNEQ(vm->def->name, def->name) ||
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memcmp(vm->def->uuid, def->uuid, VIR_UUID_BUFLEN)) {
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char vm_uuidstr[VIR_UUID_STRING_BUFLEN];
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char def_uuidstr[VIR_UUID_STRING_BUFLEN];
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virUUIDFormat(vm->def->uuid, vm_uuidstr);
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virUUIDFormat(def->uuid, def_uuidstr);
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virReportError(VIR_ERR_OPERATION_FAILED,
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_("cannot restore domain '%s' uuid %s from a file"
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" which belongs to domain '%s' uuid %s"),
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vm->def->name, vm_uuidstr, def->name, def_uuidstr);
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goto endjob;
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}
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virDomainObjAssignDef(vm, def, true, NULL);
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def = NULL;
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if (unlink(managed_save_path) < 0)
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VIR_WARN("Failed to remove the managed state %s",
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managed_save_path);
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vm->hasManagedSave = false;
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}
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VIR_FREE(managed_save_path);
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}
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libxl_domain_config_init(&d_config);
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if (libxlBuildDomainConfig(driver, vm, &d_config) < 0)
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goto endjob;
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if (cfg->autoballoon && libxlDomainFreeMem(priv, &d_config) < 0) {
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virReportError(VIR_ERR_INTERNAL_ERROR,
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_("libxenlight failed to get free memory for domain '%s'"),
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d_config.c_info.name);
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goto endjob;
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}
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if (virHostdevPrepareDomainDevices(hostdev_mgr, LIBXL_DRIVER_NAME,
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vm->def, VIR_HOSTDEV_SP_PCI) < 0)
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goto endjob;
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/* Unlock virDomainObj while creating the domain */
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virObjectUnlock(vm);
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if (restore_fd < 0) {
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ret = libxl_domain_create_new(priv->ctx, &d_config,
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&domid, NULL, NULL);
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} else {
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#ifdef LIBXL_HAVE_DOMAIN_CREATE_RESTORE_PARAMS
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params.checkpointed_stream = 0;
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ret = libxl_domain_create_restore(priv->ctx, &d_config, &domid,
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restore_fd, ¶ms, NULL, NULL);
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#else
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ret = libxl_domain_create_restore(priv->ctx, &d_config, &domid,
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restore_fd, NULL, NULL);
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#endif
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}
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virObjectLock(vm);
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if (ret) {
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if (restore_fd < 0)
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virReportError(VIR_ERR_INTERNAL_ERROR,
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_("libxenlight failed to create new domain '%s'"),
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d_config.c_info.name);
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else
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virReportError(VIR_ERR_INTERNAL_ERROR,
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_("libxenlight failed to restore domain '%s'"),
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d_config.c_info.name);
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goto endjob;
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}
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/*
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* The domain has been successfully created with libxl, so it should
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* be cleaned up if there are any subsequent failures.
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*/
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vm->def->id = domid;
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if (libxlDomainEventsRegister(vm) < 0)
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goto cleanup_dom;
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if ((dom_xml = virDomainDefFormat(vm->def, 0)) == NULL)
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goto cleanup_dom;
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if (libxl_userdata_store(priv->ctx, domid, "libvirt-xml",
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(uint8_t *)dom_xml, strlen(dom_xml) + 1)) {
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virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
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_("libxenlight failed to store userdata"));
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goto cleanup_dom;
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}
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if (libxlDomainSetVcpuAffinities(driver, vm) < 0)
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goto cleanup_dom;
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if (!start_paused) {
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libxl_domain_unpause(priv->ctx, domid);
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virDomainObjSetState(vm, VIR_DOMAIN_RUNNING, VIR_DOMAIN_RUNNING_BOOTED);
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} else {
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virDomainObjSetState(vm, VIR_DOMAIN_PAUSED, VIR_DOMAIN_PAUSED_USER);
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}
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if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm) < 0)
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goto cleanup_dom;
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if (virAtomicIntInc(&driver->nactive) == 1 && driver->inhibitCallback)
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driver->inhibitCallback(true, driver->inhibitOpaque);
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event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_STARTED,
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restore_fd < 0 ?
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VIR_DOMAIN_EVENT_STARTED_BOOTED :
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VIR_DOMAIN_EVENT_STARTED_RESTORED);
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if (event)
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libxlDomainEventQueue(driver, event);
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ret = 0;
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goto endjob;
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cleanup_dom:
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libxl_domain_destroy(priv->ctx, domid, NULL);
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vm->def->id = -1;
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virDomainObjSetState(vm, VIR_DOMAIN_SHUTOFF, VIR_DOMAIN_SHUTOFF_FAILED);
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endjob:
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if (!libxlDomainObjEndJob(driver, vm))
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vm = NULL;
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libxl_domain_config_dispose(&d_config);
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VIR_FREE(dom_xml);
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VIR_FREE(managed_save_path);
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virDomainDefFree(def);
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VIR_FORCE_CLOSE(managed_save_fd);
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virObjectUnref(cfg);
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return ret;
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}
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@ -131,4 +131,10 @@ int
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libxlDomainFreeMem(libxlDomainObjPrivatePtr priv,
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libxl_domain_config *d_config);
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int
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libxlDomainStart(libxlDriverPrivatePtr driver,
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virDomainObjPtr vm,
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bool start_paused,
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int restore_fd);
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#endif /* LIBXL_DOMAIN_H */
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@ -81,10 +81,6 @@ static int
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libxlDomainManagedSaveLoad(virDomainObjPtr vm,
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void *opaque);
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static int
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libxlVmStart(libxlDriverPrivatePtr driver, virDomainObjPtr vm,
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bool start_paused, int restore_fd);
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/* Function definitions */
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static virDomainObjPtr
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@ -118,7 +114,7 @@ libxlAutostartDomain(virDomainObjPtr vm,
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virResetLastError();
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if (vm->autostart && !virDomainObjIsActive(vm) &&
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libxlVmStart(driver, vm, false, -1) < 0) {
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libxlDomainStart(driver, vm, false, -1) < 0) {
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err = virGetLastError();
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VIR_ERROR(_("Failed to autostart VM '%s': %s"),
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vm->def->name,
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@ -245,7 +241,7 @@ restart:
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}
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libxl_domain_destroy(ctx, vm->def->id, NULL);
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libxlDomainCleanupJob(driver, vm, VIR_DOMAIN_SHUTOFF_SHUTDOWN);
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libxlVmStart(driver, vm, 0, -1);
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libxlDomainStart(driver, vm, 0, -1);
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cleanup:
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if (vm)
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@ -311,188 +307,6 @@ const struct libxl_event_hooks ev_hooks = {
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.disaster = NULL,
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};
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/*
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* Start a domain through libxenlight.
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*
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* virDomainObjPtr should be locked on invocation
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*/
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static int
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libxlVmStart(libxlDriverPrivatePtr driver, virDomainObjPtr vm,
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bool start_paused, int restore_fd)
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{
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libxl_domain_config d_config;
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virDomainDefPtr def = NULL;
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virObjectEventPtr event = NULL;
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libxlSavefileHeader hdr;
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int ret = -1;
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uint32_t domid = 0;
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char *dom_xml = NULL;
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char *managed_save_path = NULL;
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int managed_save_fd = -1;
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libxlDomainObjPrivatePtr priv = vm->privateData;
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libxlDriverConfigPtr cfg;
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#ifdef LIBXL_HAVE_DOMAIN_CREATE_RESTORE_PARAMS
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libxl_domain_restore_params params;
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#endif
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virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
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if (libxlDomainObjPrivateInitCtx(vm) < 0)
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return ret;
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if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
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return ret;
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cfg = libxlDriverConfigGet(driver);
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/* If there is a managed saved state restore it instead of starting
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* from scratch. The old state is removed once the restoring succeeded. */
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if (restore_fd < 0) {
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managed_save_path = libxlDomainManagedSavePath(driver, vm);
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if (managed_save_path == NULL)
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goto endjob;
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if (virFileExists(managed_save_path)) {
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managed_save_fd = libxlDomainSaveImageOpen(driver, cfg,
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managed_save_path,
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&def, &hdr);
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if (managed_save_fd < 0)
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goto endjob;
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restore_fd = managed_save_fd;
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if (STRNEQ(vm->def->name, def->name) ||
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memcmp(vm->def->uuid, def->uuid, VIR_UUID_BUFLEN)) {
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char vm_uuidstr[VIR_UUID_STRING_BUFLEN];
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char def_uuidstr[VIR_UUID_STRING_BUFLEN];
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virUUIDFormat(vm->def->uuid, vm_uuidstr);
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virUUIDFormat(def->uuid, def_uuidstr);
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virReportError(VIR_ERR_OPERATION_FAILED,
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_("cannot restore domain '%s' uuid %s from a file"
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" which belongs to domain '%s' uuid %s"),
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vm->def->name, vm_uuidstr, def->name, def_uuidstr);
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goto endjob;
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}
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virDomainObjAssignDef(vm, def, true, NULL);
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def = NULL;
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if (unlink(managed_save_path) < 0)
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VIR_WARN("Failed to remove the managed state %s",
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managed_save_path);
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vm->hasManagedSave = false;
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}
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VIR_FREE(managed_save_path);
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}
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libxl_domain_config_init(&d_config);
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if (libxlBuildDomainConfig(driver, vm, &d_config) < 0)
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goto endjob;
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if (cfg->autoballoon && libxlDomainFreeMem(priv, &d_config) < 0) {
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virReportError(VIR_ERR_INTERNAL_ERROR,
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_("libxenlight failed to get free memory for domain '%s'"),
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d_config.c_info.name);
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goto endjob;
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}
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if (virHostdevPrepareDomainDevices(hostdev_mgr, LIBXL_DRIVER_NAME,
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vm->def, VIR_HOSTDEV_SP_PCI) < 0)
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goto endjob;
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/* Unlock virDomainObj while creating the domain */
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virObjectUnlock(vm);
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if (restore_fd < 0) {
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ret = libxl_domain_create_new(priv->ctx, &d_config,
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&domid, NULL, NULL);
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} else {
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#ifdef LIBXL_HAVE_DOMAIN_CREATE_RESTORE_PARAMS
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params.checkpointed_stream = 0;
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ret = libxl_domain_create_restore(priv->ctx, &d_config, &domid,
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restore_fd, ¶ms, NULL, NULL);
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#else
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ret = libxl_domain_create_restore(priv->ctx, &d_config, &domid,
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restore_fd, NULL, NULL);
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#endif
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}
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virObjectLock(vm);
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if (ret) {
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if (restore_fd < 0)
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virReportError(VIR_ERR_INTERNAL_ERROR,
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_("libxenlight failed to create new domain '%s'"),
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d_config.c_info.name);
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else
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virReportError(VIR_ERR_INTERNAL_ERROR,
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_("libxenlight failed to restore domain '%s'"),
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d_config.c_info.name);
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goto endjob;
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}
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/*
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* The domain has been successfully created with libxl, so it should
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* be cleaned up if there are any subsequent failures.
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*/
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vm->def->id = domid;
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if (libxlDomainEventsRegister(vm) < 0)
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goto cleanup_dom;
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if ((dom_xml = virDomainDefFormat(vm->def, 0)) == NULL)
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goto cleanup_dom;
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if (libxl_userdata_store(priv->ctx, domid, "libvirt-xml",
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(uint8_t *)dom_xml, strlen(dom_xml) + 1)) {
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virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
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_("libxenlight failed to store userdata"));
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goto cleanup_dom;
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}
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if (libxlDomainSetVcpuAffinities(driver, vm) < 0)
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goto cleanup_dom;
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if (!start_paused) {
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libxl_domain_unpause(priv->ctx, domid);
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virDomainObjSetState(vm, VIR_DOMAIN_RUNNING, VIR_DOMAIN_RUNNING_BOOTED);
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} else {
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virDomainObjSetState(vm, VIR_DOMAIN_PAUSED, VIR_DOMAIN_PAUSED_USER);
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}
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if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm) < 0)
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goto cleanup_dom;
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if (virAtomicIntInc(&driver->nactive) == 1 && driver->inhibitCallback)
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driver->inhibitCallback(true, driver->inhibitOpaque);
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event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_STARTED,
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restore_fd < 0 ?
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VIR_DOMAIN_EVENT_STARTED_BOOTED :
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VIR_DOMAIN_EVENT_STARTED_RESTORED);
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if (event)
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libxlDomainEventQueue(driver, event);
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ret = 0;
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goto endjob;
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cleanup_dom:
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libxl_domain_destroy(priv->ctx, domid, NULL);
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vm->def->id = -1;
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virDomainObjSetState(vm, VIR_DOMAIN_SHUTOFF, VIR_DOMAIN_SHUTOFF_FAILED);
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endjob:
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if (!libxlDomainObjEndJob(driver, vm))
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vm = NULL;
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libxl_domain_config_dispose(&d_config);
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VIR_FREE(dom_xml);
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VIR_FREE(managed_save_path);
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virDomainDefFree(def);
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VIR_FORCE_CLOSE(managed_save_fd);
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virObjectUnref(cfg);
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return ret;
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}
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/*
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* Reconnect to running domains that were previously started/created
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* with libxenlight driver.
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@ -1018,7 +832,7 @@ libxlDomainCreateXML(virConnectPtr conn, const char *xml,
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goto cleanup;
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def = NULL;
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if (libxlVmStart(driver, vm, (flags & VIR_DOMAIN_START_PAUSED) != 0,
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if (libxlDomainStart(driver, vm, (flags & VIR_DOMAIN_START_PAUSED) != 0,
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-1) < 0) {
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virDomainObjListRemove(driver->domains, vm);
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vm = NULL;
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@ -1798,7 +1612,7 @@ libxlDomainRestoreFlags(virConnectPtr conn, const char *from,
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def = NULL;
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ret = libxlVmStart(driver, vm, (flags & VIR_DOMAIN_SAVE_PAUSED) != 0, fd);
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ret = libxlDomainStart(driver, vm, (flags & VIR_DOMAIN_SAVE_PAUSED) != 0, fd);
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if (ret < 0 && !vm->persistent) {
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virDomainObjListRemove(driver->domains, vm);
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vm = NULL;
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@ -2687,7 +2501,7 @@ libxlDomainCreateWithFlags(virDomainPtr dom,
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goto cleanup;
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}
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ret = libxlVmStart(driver, vm, (flags & VIR_DOMAIN_START_PAUSED) != 0, -1);
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ret = libxlDomainStart(driver, vm, (flags & VIR_DOMAIN_START_PAUSED) != 0, -1);
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cleanup:
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if (vm)
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