
When the PVM guest poweroff, the COLO thread may wait a semaphore in colo_process_checkpoint().So, we should wake up the COLO thread before migration shutdown. Signed-off-by: Lei Rao <lei.rao@intel.com> Reviewed-by: Zhang Chen <chen.zhang@intel.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>