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qemu: Don't emit SUSPENDED_POSTCOPY event on destination

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When pause-before-switchover QEMU capability is enabled, we get STOP
event before MIGRATION event with postcopy-active state. To properly
handle post-copy migration and emit correct events commit
v4.10.0-rc1-4-geca9d21e6c added a hack to
qemuProcessHandleMigrationStatus which translates the paused state
reason to VIR_DOMAIN_PAUSED_POSTCOPY and emits
VIR_DOMAIN_EVENT_SUSPENDED_POSTCOPY event when migration state changes
to post-copy.

However, the code was effective on both sides of migration resulting in
a confusing VIR_DOMAIN_EVENT_SUSPENDED_POSTCOPY event on the destination
host, where entering post-copy mode is already properly advertised by
VIR_DOMAIN_EVENT_RESUMED_POSTCOPY event.

https://bugzilla.redhat.com/show_bug.cgi?id=1791458

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Jiri Denemark 2020-01-15 15:24:55 +01:00
parent 0970da7180
commit bd04d63ad9
1 changed files with 1 additions and 0 deletions
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src/qemu/qemu_process.c
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@ -1653,6 +1653,7 @@ qemuProcessHandleMigrationStatus(qemuMonitorPtr mon G_GNUC_UNUSED,
virDomainObjBroadcast(vm);
if (status == QEMU_MONITOR_MIGRATION_STATUS_POSTCOPY &&
priv->job.asyncJob == QEMU_ASYNC_JOB_MIGRATION_OUT &&
virDomainObjGetState(vm, &reason) == VIR_DOMAIN_PAUSED &&
reason == VIR_DOMAIN_PAUSED_MIGRATION) {
VIR_DEBUG("Correcting paused state reason for domain %s to %s",