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authorPavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>2018-09-12 11:19:39 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2018-10-02 19:08:58 +0200
commitbb3d7702e8dd0fd84c9496e226b46ce964b76e13 (patch)
tree3b688f6c0728834008a2fa4596ab638940a53214 /replay
parentf9f1f56e4da088b993ce28775c271d5bcdcf49ae (diff)
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replay: allow loading any snapshots before recording
This patch enables using -loadvm in recording mode to allow starting the execution recording from any of the available snapshots. It also fixes loading of the record/replay state, therefore snapshots created in replay mode may also be used for starting the new recording. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> Message-Id: <20180912081939.3228.56131.stgit@pasha-VirtualBox> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'replay')
-rw-r--r--replay/replay-snapshot.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/replay/replay-snapshot.c b/replay/replay-snapshot.c
index 2ab85cf..16bacc9 100644
--- a/replay/replay-snapshot.c
+++ b/replay/replay-snapshot.c
@@ -33,11 +33,18 @@ static int replay_pre_save(void *opaque)
static int replay_post_load(void *opaque, int version_id)
{
ReplayState *state = opaque;
- fseek(replay_file, state->file_offset, SEEK_SET);
- qemu_clock_set_last(QEMU_CLOCK_HOST, state->host_clock_last);
- /* If this was a vmstate, saved in recording mode,
- we need to initialize replay data fields. */
- replay_fetch_data_kind();
+ if (replay_mode == REPLAY_MODE_PLAY) {
+ fseek(replay_file, state->file_offset, SEEK_SET);
+ qemu_clock_set_last(QEMU_CLOCK_HOST, state->host_clock_last);
+ /* If this was a vmstate, saved in recording mode,
+ we need to initialize replay data fields. */
+ replay_fetch_data_kind();
+ } else if (replay_mode == REPLAY_MODE_RECORD) {
+ /* This is only useful for loading the initial state.
+ Therefore reset all the counters. */
+ state->instructions_count = 0;
+ state->block_request_id = 0;
+ }
return 0;
}