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qemu: Send event VIR_DOMAIN_EVENT_[STOPPED|STARTED] during recreation

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For secure guest, FakeReboot kills original QEMU instance and
create new one which is quite different from normal guest.

To reflect this fact, VIR_DOMAIN_EVENT_[STOPPED|STARTED]
are sent to control plane with new introduced reasons
VIR_DOMAIN_EVENT_[STOPPED|STARTED]_RECREATION.

That would let control plane software understand that these
events are from a fake reboot.

Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
This commit is contained in:
Zhenzhong Duan
2025-07-25 11:36:11 +01:00
committed by Daniel P. Berrangé
parent 194a36f4fe
commit 1af740c501
4 changed files with 22 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
examples/c/misc/event-test.c
+6
View File
@@ -143,6 +143,9 @@ eventDetailToString(int event,
case VIR_DOMAIN_EVENT_STARTED_WAKEUP:
return "Event wakeup";
case VIR_DOMAIN_EVENT_STARTED_RECREATION:
return "Recreation";
case VIR_DOMAIN_EVENT_STARTED_LAST:
break;
}
@@ -227,6 +230,9 @@ eventDetailToString(int event,
case VIR_DOMAIN_EVENT_STOPPED_FROM_SNAPSHOT:
return "Snapshot";
case VIR_DOMAIN_EVENT_STOPPED_RECREATION:
return "Recreation";
case VIR_DOMAIN_EVENT_STOPPED_LAST:
break;
}
include/libvirt/libvirt-domain.h
+2
View File
@@ -5051,6 +5051,7 @@ typedef enum {
VIR_DOMAIN_EVENT_STARTED_RESTORED = 2, /* Restored from a state file (Since: 0.5.0) */
VIR_DOMAIN_EVENT_STARTED_FROM_SNAPSHOT = 3, /* Restored from snapshot (Since: 0.8.0) */
VIR_DOMAIN_EVENT_STARTED_WAKEUP = 4, /* Started due to wakeup event (Since: 0.9.11) */
VIR_DOMAIN_EVENT_STARTED_RECREATION = 5, /* Secure guest recreation (Since: 10.1.0) */
# ifdef VIR_ENUM_SENTINELS
VIR_DOMAIN_EVENT_STARTED_LAST /* (Since: 0.9.10) */
@@ -5115,6 +5116,7 @@ typedef enum {
VIR_DOMAIN_EVENT_STOPPED_SAVED = 4, /* Saved to a state file (Since: 0.5.0) */
VIR_DOMAIN_EVENT_STOPPED_FAILED = 5, /* Host emulator/mgmt failed (Since: 0.5.0) */
VIR_DOMAIN_EVENT_STOPPED_FROM_SNAPSHOT = 6, /* offline snapshot loaded (Since: 0.8.0) */
VIR_DOMAIN_EVENT_STOPPED_RECREATION = 7, /* Secure guest recreation (Since: 10.1.0) */
# ifdef VIR_ENUM_SENTINELS
VIR_DOMAIN_EVENT_STOPPED_LAST /* (Since: 0.9.10) */
src/qemu/qemu_process.c
+10
View File
@@ -455,6 +455,7 @@ qemuProcessFakeRebootViaRecreate(virDomainObj *vm)
{
qemuDomainObjPrivate *priv = vm->privateData;
virQEMUDriver *driver = priv->driver;
virObjectEvent *event = NULL;
int ret = -1;
VIR_DEBUG("Handle secure guest reboot: destroy phase");
@@ -471,6 +472,11 @@ qemuProcessFakeRebootViaRecreate(virDomainObj *vm)
qemuProcessStop(vm, VIR_DOMAIN_SHUTOFF_DESTROYED, VIR_ASYNC_JOB_NONE, 0);
virDomainAuditStop(vm, "destroyed");
event = virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_RECREATION);
virObjectEventStateQueue(driver->domainEventState, event);
/* skip remove inactive domain from active list */
qemuProcessEndStopJob(vm);
@@ -491,6 +497,10 @@ qemuProcessFakeRebootViaRecreate(virDomainObj *vm)
}
virDomainAuditStart(vm, "booted", true);
event = virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_STARTED,
VIR_DOMAIN_EVENT_STARTED_RECREATION);
virObjectEventStateQueue(driver->domainEventState, event);
qemuDomainSaveStatus(vm);
ret = 0;
tools/virsh-domain-event.c
+4 -2
View File
@@ -71,7 +71,8 @@ VIR_ENUM_IMPL(virshDomainEventStarted,
N_("Migrated"),
N_("Restored"),
N_("Snapshot"),
N_("Event wakeup"));
N_("Event wakeup"),
N_("Recreation"));
VIR_ENUM_DECL(virshDomainEventSuspended);
VIR_ENUM_IMPL(virshDomainEventSuspended,
@@ -104,7 +105,8 @@ VIR_ENUM_IMPL(virshDomainEventStopped,
N_("Migrated"),
N_("Saved"),
N_("Failed"),
N_("Snapshot"));
N_("Snapshot"),
N_("Recreation"));
VIR_ENUM_DECL(virshDomainEventShutdown);
VIR_ENUM_IMPL(virshDomainEventShutdown,