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authorPeter Xu <peterx@redhat.com>2023-10-30 12:33:45 -0400
committerJuan Quintela <quintela@redhat.com>2023-11-01 16:13:58 +0100
commit93bdf888fa5c1b3972e337c8c8fbe7d2bcd29900 (patch)
tree24e22945b839e58d0a579525243246d890837574 /migration
parent3c80f14272057f77c87fb9971e8c4f603a03289a (diff)
migration: migration_stop_vm() helper
Provide a helper for non-COLO use case of migration to stop a VM. This prepares for adding some downtime relevant tracepoints to migration, where they may or may not apply to COLO. Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com> Message-ID: <20231030163346.765724-5-peterx@redhat.com>
Diffstat (limited to 'migration')
-rw-r--r--migration/migration.c11
-rw-r--r--migration/migration.h2
2 files changed, 10 insertions, 3 deletions
diff --git a/migration/migration.c b/migration/migration.c
index 8aac0c753e..3e38294485 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -149,6 +149,11 @@ static gint page_request_addr_cmp(gconstpointer ap, gconstpointer bp)
return (a > b) - (a < b);
}
+int migration_stop_vm(RunState state)
+{
+ return vm_stop_force_state(state);
+}
+
void migration_object_init(void)
{
/* This can only be called once. */
@@ -2169,7 +2174,7 @@ static int postcopy_start(MigrationState *ms, Error **errp)
qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER, NULL);
global_state_store();
- ret = vm_stop_force_state(RUN_STATE_FINISH_MIGRATE);
+ ret = migration_stop_vm(RUN_STATE_FINISH_MIGRATE);
if (ret < 0) {
goto fail;
}
@@ -2371,7 +2376,7 @@ static int migration_completion_precopy(MigrationState *s,
s->vm_old_state = runstate_get();
global_state_store();
- ret = vm_stop_force_state(RUN_STATE_FINISH_MIGRATE);
+ ret = migration_stop_vm(RUN_STATE_FINISH_MIGRATE);
trace_migration_completion_vm_stop(ret);
if (ret < 0) {
goto out_unlock;
@@ -3222,7 +3227,7 @@ static void *bg_migration_thread(void *opaque)
global_state_store();
/* Forcibly stop VM before saving state of vCPUs and devices */
- if (vm_stop_force_state(RUN_STATE_PAUSED)) {
+ if (migration_stop_vm(RUN_STATE_PAUSED)) {
goto fail;
}
/*
diff --git a/migration/migration.h b/migration/migration.h
index ae82004892..5944107ad5 100644
--- a/migration/migration.h
+++ b/migration/migration.h
@@ -544,4 +544,6 @@ void migration_rp_wait(MigrationState *s);
*/
void migration_rp_kick(MigrationState *s);
+int migration_stop_vm(RunState state);
+
#endif