migration: Remove call to send switchover start event in colo/savevm

COLO (in case of periodically checkpointing) already have switchover
happened before hand.  This switchover_start feature never applies to COLO.

Savevm for snapshot doesn't have switchover phase and VM is stopped for the
whole process.

Remove both.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Tested-by: Lukas Straub <lukasstraub2@web.de>
Link: https://lore.kernel.org/qemu-devel/20260127185254.3954634-7-peterx@redhat.com
Signed-off-by: Fabiano Rosas <farosas@suse.de>

diff --git a/migration/colo.c b/migration/colo.c
index e05736ecf0fcf029d0397d64a1f8b8ee3f32b453..c344943173c17b4aa7e4e7472beca47610ac85ac 100644 (file)
--- a/migration/colo.c
+++ b/migration/colo.c
@@ -453,8 +453,6 @@ static int colo_do_checkpoint_transaction(MigrationState *s,
         goto out;
     }
 
-    qemu_savevm_maybe_send_switchover_start(s->to_dst_file);
-
     /* Note: device state is saved into buffer */
     ret = qemu_save_device_state(fb);
 

diff --git a/migration/savevm.c b/migration/savevm.c
index 529cf310e0746acccae85fc957f5120627b3fcd7..d41be3a4a25881de47cd3034a30d8d97ff4c879a 100644 (file)
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -1830,7 +1830,6 @@ static int qemu_savevm_state(QEMUFile *f, Error **errp)
 
     ret = qemu_file_get_error(f);
     if (ret == 0) {
-        qemu_savevm_maybe_send_switchover_start(f);
         qemu_savevm_state_complete_precopy(f, false);
         ret = qemu_file_get_error(f);
     }