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authorDr. David Alan Gilbert <dgilbert@redhat.com>2015-12-16 11:47:36 +0000
committerAmit Shah <amit.shah@redhat.com>2016-01-13 16:02:13 +0530
commit4addcd4fdc94c369f4cd54f8e03396ff26fce34d (patch)
treecfff579d69a5e91c1cc0ae954102e968ec3c70ba /migration/ram.c
parent6ba996bb458f4620e62984f2561c270a636bb500 (diff)
Migration: Emit event at start of pass
Emit an event each time we sync the dirty bitmap on the source; this helps libvirt use postcopy by giving it a kick when it might be a good idea to start the postcopy. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Amit Shah <amit.shah@redhat.com> Message-Id: <1450266458-3178-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
Diffstat (limited to 'migration/ram.c')
-rw-r--r--migration/ram.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/migration/ram.c b/migration/ram.c
index 0490f005dd..102d1f2b14 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -27,6 +27,7 @@
*/
#include <stdint.h>
#include <zlib.h>
+#include "qapi-event.h"
#include "qemu/bitops.h"
#include "qemu/bitmap.h"
#include "qemu/timer.h"
@@ -682,6 +683,9 @@ static void migration_bitmap_sync(void)
num_dirty_pages_period = 0;
}
s->dirty_sync_count = bitmap_sync_count;
+ if (migrate_use_events()) {
+ qapi_event_send_migration_pass(bitmap_sync_count, NULL);
+ }
}
/**