virtio-pci: address space translation service (ATS) support
[qemu.git] / replay / replay-snapshot.c
1 /*
2 * replay-snapshot.c
3 *
4 * Copyright (c) 2010-2016 Institute for System Programming
5 * of the Russian Academy of Sciences.
6 *
7 * This work is licensed under the terms of the GNU GPL, version 2 or later.
8 * See the COPYING file in the top-level directory.
9 *
10 */
11
12 #include "qemu/osdep.h"
13 #include "qapi/error.h"
14 #include "qemu-common.h"
15 #include "sysemu/replay.h"
16 #include "replay-internal.h"
17 #include "sysemu/sysemu.h"
18 #include "monitor/monitor.h"
19 #include "qapi/qmp/qstring.h"
20 #include "qemu/error-report.h"
21 #include "migration/vmstate.h"
22
23 static void replay_pre_save(void *opaque)
24 {
25 ReplayState *state = opaque;
26 state->file_offset = ftell(replay_file);
27 }
28
29 static int replay_post_load(void *opaque, int version_id)
30 {
31 ReplayState *state = opaque;
32 fseek(replay_file, state->file_offset, SEEK_SET);
33 /* If this was a vmstate, saved in recording mode,
34 we need to initialize replay data fields. */
35 replay_fetch_data_kind();
36
37 return 0;
38 }
39
40 static const VMStateDescription vmstate_replay = {
41 .name = "replay",
42 .version_id = 1,
43 .minimum_version_id = 1,
44 .pre_save = replay_pre_save,
45 .post_load = replay_post_load,
46 .fields = (VMStateField[]) {
47 VMSTATE_INT64_ARRAY(cached_clock, ReplayState, REPLAY_CLOCK_COUNT),
48 VMSTATE_UINT64(current_step, ReplayState),
49 VMSTATE_INT32(instructions_count, ReplayState),
50 VMSTATE_UINT32(data_kind, ReplayState),
51 VMSTATE_UINT32(has_unread_data, ReplayState),
52 VMSTATE_UINT64(file_offset, ReplayState),
53 VMSTATE_UINT64(block_request_id, ReplayState),
54 VMSTATE_END_OF_LIST()
55 },
56 };
57
58 void replay_vmstate_register(void)
59 {
60 vmstate_register(NULL, 0, &vmstate_replay, &replay_state);
61 }