qemu: Explicitly emit events on post-copy failure

The events would normally be triggered only if we're changing domain
state. But most of the time the domain is already in the right state and
we're just changing its substate from {PAUSED,RUNNING}_POSTCOPY to
*_POSTCOPY_FAILED. Let's emit lifecycle events explicitly when post-copy
migration fails to make the failure visible without polling.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>

diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 0859a4e4a7b50afa20fc8cb42e2b906fef227920..a6f45f0d1892b6e558f81a99d296cf761609f1d6 100644 (file)
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -1579,6 +1579,9 @@ qemuMigrationSrcIsSafe(virDomainDef *def,
 void
 qemuMigrationSrcPostcopyFailed(virDomainObj *vm)
 {
+    qemuDomainObjPrivate *priv = vm->privateData;
+    virQEMUDriver *driver = priv->driver;
+    virObjectEvent *event = NULL;
     virDomainState state;
     int reason;
 
@@ -1597,12 +1600,18 @@ qemuMigrationSrcPostcopyFailed(virDomainObj *vm)
 
     virDomainObjSetState(vm, VIR_DOMAIN_PAUSED,
                          VIR_DOMAIN_PAUSED_POSTCOPY_FAILED);
+    event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_SUSPENDED,
+                                              VIR_DOMAIN_EVENT_SUSPENDED_POSTCOPY_FAILED);
+    virObjectEventStateQueue(driver->domainEventState, event);
 }
 
 
 void
 qemuMigrationDstPostcopyFailed(virDomainObj *vm)
 {
+    qemuDomainObjPrivate *priv = vm->privateData;
+    virQEMUDriver *driver = priv->driver;
+    virObjectEvent *event = NULL;
     virDomainState state;
     int reason;
 
@@ -1622,6 +1631,9 @@ qemuMigrationDstPostcopyFailed(virDomainObj *vm)
 
     virDomainObjSetState(vm, VIR_DOMAIN_RUNNING,
                          VIR_DOMAIN_RUNNING_POSTCOPY_FAILED);
+    event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_RESUMED,
+                                              VIR_DOMAIN_EVENT_RESUMED_POSTCOPY_FAILED);
+    virObjectEventStateQueue(driver->domainEventState, event);
 }