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-rw-r--r--migration/colo.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/migration/colo.c b/migration/colo.c
index 9a8e5fbe9b..c976b3ff34 100644
--- a/migration/colo.c
+++ b/migration/colo.c
@@ -452,6 +452,9 @@ static int colo_do_checkpoint_transaction(MigrationState *s,
         bql_unlock();
         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);