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| author | Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> | 2018-02-27 12:52:26 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-03-12 16:12:50 +0100 |
| commit | 4b930d264cea0d72e775a7a57a8fce79158e8c10 (patch) | |
| tree | 72ff9353ece1c71d1673895c21ec79820305b061 /replay | |
| parent | bb040e006f0245ca376b45dc5ea247f6e1f02648 (diff) | |
| download | qemu-4b930d264cea0d72e775a7a57a8fce79158e8c10.zip qemu-4b930d264cea0d72e775a7a57a8fce79158e8c10.tar.gz qemu-4b930d264cea0d72e775a7a57a8fce79158e8c10.tar.bz2 | |
replay: save prior value of the host clock
This patch adds saving/restoring of the host clock field 'last'.
It is used in host clock calculation and therefore clock may
become incorrect when using restored vmstate.
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20180227095226.1060.50975.stgit@pasha-VirtualBox>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Diffstat (limited to 'replay')
| -rw-r--r-- | replay/replay-internal.h | 2 | ||||
| -rw-r--r-- | replay/replay-snapshot.c | 3 |
2 files changed, 5 insertions, 0 deletions
diff --git a/replay/replay-internal.h b/replay/replay-internal.h index 3ebb199..be96d7e 100644 --- a/replay/replay-internal.h +++ b/replay/replay-internal.h @@ -78,6 +78,8 @@ typedef struct ReplayState { This counter is global, because requests from different block devices should not get overlapping ids. */ uint64_t block_request_id; + /*! Prior value of the host clock */ + uint64_t host_clock_last; } ReplayState; extern ReplayState replay_state; diff --git a/replay/replay-snapshot.c b/replay/replay-snapshot.c index 7075986a..e0b2204 100644 --- a/replay/replay-snapshot.c +++ b/replay/replay-snapshot.c @@ -25,6 +25,7 @@ static int replay_pre_save(void *opaque) { ReplayState *state = opaque; state->file_offset = ftell(replay_file); + state->host_clock_last = qemu_clock_get_last(QEMU_CLOCK_HOST); return 0; } @@ -33,6 +34,7 @@ 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(); @@ -54,6 +56,7 @@ static const VMStateDescription vmstate_replay = { VMSTATE_UINT32(has_unread_data, ReplayState), VMSTATE_UINT64(file_offset, ReplayState), VMSTATE_UINT64(block_request_id, ReplayState), + VMSTATE_UINT64(host_clock_last, ReplayState), VMSTATE_END_OF_LIST() }, }; |