diff options
| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2018-03-13 15:34:01 -0400 |
|---|---|---|
| committer | John Snow <jsnow@redhat.com> | 2018-03-13 17:05:58 -0400 |
| commit | c865d84872b421715d8291285f57b658e8b39c9b (patch) | |
| tree | 579f405215e82f61bd6d9dfc4e4b477ce8ab8a29 /include/migration | |
| parent | f0d64cb72916b3086b51d5933de74e98c8586612 (diff) | |
| download | qemu-c865d84872b421715d8291285f57b658e8b39c9b.tar.gz | |
migration: add is_active_iterate handler
Only-postcopy savevm states (dirty-bitmap) don't need live iteration, so
to disable them and stop transporting empty sections there is a new
savevm handler.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 20180313180320.339796-10-vsementsov@virtuozzo.com
Diffstat (limited to 'include/migration')
| -rw-r--r-- | include/migration/register.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/migration/register.h b/include/migration/register.h index 9436a87678..f6f12f9b1a 100644 --- a/include/migration/register.h +++ b/include/migration/register.h @@ -26,6 +26,15 @@ typedef struct SaveVMHandlers { bool (*is_active)(void *opaque); bool (*has_postcopy)(void *opaque); + /* is_active_iterate + * If it is not NULL then qemu_savevm_state_iterate will skip iteration if + * it returns false. For example, it is needed for only-postcopy-states, + * which needs to be handled by qemu_savevm_state_setup and + * qemu_savevm_state_pending, but do not need iterations until not in + * postcopy stage. + */ + bool (*is_active_iterate)(void *opaque); + /* This runs outside the iothread lock in the migration case, and * within the lock in the savevm case. The callback had better only * use data that is local to the migration thread or protected |