diff options
| -rw-r--r-- | include/sysemu/replay.h | 2 | ||||
| -rw-r--r-- | migration/savevm.c | 12 | ||||
| -rw-r--r-- | replay/replay-events.c | 4 | ||||
| -rw-r--r-- | replay/replay-internal.h | 2 |
4 files changed, 12 insertions, 8 deletions
diff --git a/include/sysemu/replay.h b/include/sysemu/replay.h index d6026ed..c486c3a 100644 --- a/include/sysemu/replay.h +++ b/include/sysemu/replay.h @@ -149,6 +149,8 @@ void replay_disable_events(void); void replay_enable_events(void); /*! Returns true when saving events is enabled */ bool replay_events_enabled(void); +/* Flushes events queue */ +void replay_flush_events(void); /*! Adds bottom half event to the queue */ void replay_bh_schedule_event(QEMUBH *bh); /* Adds oneshot bottom half event to the queue */ diff --git a/migration/savevm.c b/migration/savevm.c index 0e8dc78..d2e141f 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -2881,12 +2881,6 @@ int load_snapshot(const char *name, Error **errp) AioContext *aio_context; MigrationIncomingState *mis = migration_incoming_get_current(); - if (!replay_can_snapshot()) { - error_setg(errp, "Record/replay does not allow loading snapshot " - "right now. Try once more later."); - return -EINVAL; - } - if (!bdrv_all_can_snapshot(&bs)) { error_setg(errp, "Device '%s' is writable but does not support snapshots", @@ -2920,6 +2914,12 @@ int load_snapshot(const char *name, Error **errp) return -EINVAL; } + /* + * Flush the record/replay queue. Now the VM state is going + * to change. Therefore we don't need to preserve its consistency + */ + replay_flush_events(); + /* Flush all IO requests so they don't interfere with the new state. */ bdrv_drain_all_begin(); diff --git a/replay/replay-events.c b/replay/replay-events.c index 302b840..a1c6bb9 100644 --- a/replay/replay-events.c +++ b/replay/replay-events.c @@ -77,6 +77,10 @@ bool replay_has_events(void) void replay_flush_events(void) { + if (replay_mode == REPLAY_MODE_NONE) { + return; + } + g_assert(replay_mutex_locked()); while (!QTAILQ_EMPTY(&events_list)) { diff --git a/replay/replay-internal.h b/replay/replay-internal.h index 2f6145e..97649ed 100644 --- a/replay/replay-internal.h +++ b/replay/replay-internal.h @@ -149,8 +149,6 @@ void replay_read_next_clock(unsigned int kind); void replay_init_events(void); /*! Clears internal data structures for events handling */ void replay_finish_events(void); -/*! Flushes events queue */ -void replay_flush_events(void); /*! Returns true if there are any unsaved events in the queue */ bool replay_has_events(void); /*! Saves events from queue into the file */ |