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authorSteve Sistare <steven.sistare@oracle.com>2024-01-03 12:05:37 -0800
committerPeter Xu <peterx@redhat.com>2024-01-04 09:52:42 +0800
commit49a5020697001eb96693e8a289c13b89149c7fef (patch)
tree16f7cf6b05c99400fea785c48e80ac0a7faf702f /migration
parent58b105703e86c1721d1a4cb9f6aaaca49c82145e (diff)
migration: preserve suspended for bg_migration
Do not wake a suspended guest during bg_migration, and restore the prior state at finish rather than unconditionally running. Allow the additional state transitions that occur. Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Fabiano Rosas <farosas@suse.de> Reviewed-by: Peter Xu <peterx@redhat.com> Link: https://lore.kernel.org/r/1704312341-66640-9-git-send-email-steven.sistare@oracle.com Signed-off-by: Peter Xu <peterx@redhat.com>
Diffstat (limited to 'migration')
-rw-r--r--migration/migration.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/migration/migration.c b/migration/migration.c
index 8124811045..2cc7e2a56c 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -3390,7 +3390,7 @@ static void bg_migration_vm_start_bh(void *opaque)
qemu_bh_delete(s->vm_start_bh);
s->vm_start_bh = NULL;
- vm_start();
+ vm_resume(s->vm_old_state);
migration_downtime_end(s);
}
@@ -3462,11 +3462,6 @@ static void *bg_migration_thread(void *opaque)
qemu_mutex_lock_iothread();
- /*
- * If VM is currently in suspended state, then, to make a valid runstate
- * transition in vm_stop_force_state() we need to wakeup it up.
- */
- qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER, NULL);
s->vm_old_state = runstate_get();
global_state_store();