numa: add -numa node,memdev= option
[qemu.git] / include / block / snapshot.h
1 /*
2 * Block layer snapshot related functions
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #ifndef SNAPSHOT_H
26 #define SNAPSHOT_H
27
28 #include "qemu-common.h"
29 #include "qapi/error.h"
30 #include "qemu/option.h"
31
32
33 #define SNAPSHOT_OPT_BASE "snapshot."
34 #define SNAPSHOT_OPT_ID "snapshot.id"
35 #define SNAPSHOT_OPT_NAME "snapshot.name"
36
37 extern QemuOptsList internal_snapshot_opts;
38
39 typedef struct QEMUSnapshotInfo {
40 char id_str[128]; /* unique snapshot id */
41 /* the following fields are informative. They are not needed for
42 the consistency of the snapshot */
43 char name[256]; /* user chosen name */
44 uint64_t vm_state_size; /* VM state info size */
45 uint32_t date_sec; /* UTC date of the snapshot */
46 uint32_t date_nsec;
47 uint64_t vm_clock_nsec; /* VM clock relative to boot */
48 } QEMUSnapshotInfo;
49
50 int bdrv_snapshot_find(BlockDriverState *bs, QEMUSnapshotInfo *sn_info,
51 const char *name);
52 bool bdrv_snapshot_find_by_id_and_name(BlockDriverState *bs,
53 const char *id,
54 const char *name,
55 QEMUSnapshotInfo *sn_info,
56 Error **errp);
57 int bdrv_can_snapshot(BlockDriverState *bs);
58 int bdrv_snapshot_create(BlockDriverState *bs,
59 QEMUSnapshotInfo *sn_info);
60 int bdrv_snapshot_goto(BlockDriverState *bs,
61 const char *snapshot_id);
62 int bdrv_snapshot_delete(BlockDriverState *bs,
63 const char *snapshot_id,
64 const char *name,
65 Error **errp);
66 void bdrv_snapshot_delete_by_id_or_name(BlockDriverState *bs,
67 const char *id_or_name,
68 Error **errp);
69 int bdrv_snapshot_list(BlockDriverState *bs,
70 QEMUSnapshotInfo **psn_info);
71 int bdrv_snapshot_load_tmp(BlockDriverState *bs,
72 const char *snapshot_id,
73 const char *name,
74 Error **errp);
75 int bdrv_snapshot_load_tmp_by_id_or_name(BlockDriverState *bs,
76 const char *id_or_name,
77 Error **errp);
78 #endif