1#ifndef BLOCK_DIRTY_BITMAP_H
2#define BLOCK_DIRTY_BITMAP_H
3
4#include "qapi/qapi-types-block-core.h"
5#include "qemu/hbitmap.h"
6
7typedef enum BitmapCheckFlags {
8 BDRV_BITMAP_BUSY = 1,
9 BDRV_BITMAP_RO = 2,
10 BDRV_BITMAP_INCONSISTENT = 4,
11} BitmapCheckFlags;
12
13#define BDRV_BITMAP_DEFAULT (BDRV_BITMAP_BUSY | BDRV_BITMAP_RO | \
14 BDRV_BITMAP_INCONSISTENT)
15#define BDRV_BITMAP_ALLOW_RO (BDRV_BITMAP_BUSY | BDRV_BITMAP_INCONSISTENT)
16
17BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverState *bs,
18 uint32_t granularity,
19 const char *name,
20 Error **errp);
21void bdrv_create_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap,
22 int chunk_size);
23void bdrv_release_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap);
24int bdrv_dirty_bitmap_create_successor(BlockDriverState *bs,
25 BdrvDirtyBitmap *bitmap,
26 Error **errp);
27BdrvDirtyBitmap *bdrv_dirty_bitmap_abdicate(BlockDriverState *bs,
28 BdrvDirtyBitmap *bitmap,
29 Error **errp);
30BdrvDirtyBitmap *bdrv_reclaim_dirty_bitmap(BlockDriverState *bs,
31 BdrvDirtyBitmap *bitmap,
32 Error **errp);
33void bdrv_dirty_bitmap_enable_successor(BdrvDirtyBitmap *bitmap);
34BdrvDirtyBitmap *bdrv_find_dirty_bitmap(BlockDriverState *bs,
35 const char *name);
36int bdrv_dirty_bitmap_check(const BdrvDirtyBitmap *bitmap, uint32_t flags,
37 Error **errp);
38void bdrv_release_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap);
39void bdrv_release_named_dirty_bitmaps(BlockDriverState *bs);
40void bdrv_remove_persistent_dirty_bitmap(BlockDriverState *bs,
41 const char *name,
42 Error **errp);
43void bdrv_disable_dirty_bitmap(BdrvDirtyBitmap *bitmap);
44void bdrv_enable_dirty_bitmap(BdrvDirtyBitmap *bitmap);
45void bdrv_enable_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap);
46BlockDirtyInfoList *bdrv_query_dirty_bitmaps(BlockDriverState *bs);
47uint32_t bdrv_get_default_bitmap_granularity(BlockDriverState *bs);
48uint32_t bdrv_dirty_bitmap_granularity(const BdrvDirtyBitmap *bitmap);
49bool bdrv_dirty_bitmap_enabled(BdrvDirtyBitmap *bitmap);
50bool bdrv_dirty_bitmap_has_successor(BdrvDirtyBitmap *bitmap);
51const char *bdrv_dirty_bitmap_name(const BdrvDirtyBitmap *bitmap);
52int64_t bdrv_dirty_bitmap_size(const BdrvDirtyBitmap *bitmap);
53DirtyBitmapStatus bdrv_dirty_bitmap_status(BdrvDirtyBitmap *bitmap);
54void bdrv_set_dirty_bitmap(BdrvDirtyBitmap *bitmap,
55 int64_t offset, int64_t bytes);
56void bdrv_reset_dirty_bitmap(BdrvDirtyBitmap *bitmap,
57 int64_t offset, int64_t bytes);
58BdrvDirtyBitmapIter *bdrv_dirty_meta_iter_new(BdrvDirtyBitmap *bitmap);
59BdrvDirtyBitmapIter *bdrv_dirty_iter_new(BdrvDirtyBitmap *bitmap);
60void bdrv_dirty_iter_free(BdrvDirtyBitmapIter *iter);
61
62uint64_t bdrv_dirty_bitmap_serialization_size(const BdrvDirtyBitmap *bitmap,
63 uint64_t offset, uint64_t bytes);
64uint64_t bdrv_dirty_bitmap_serialization_align(const BdrvDirtyBitmap *bitmap);
65void bdrv_dirty_bitmap_serialize_part(const BdrvDirtyBitmap *bitmap,
66 uint8_t *buf, uint64_t offset,
67 uint64_t bytes);
68void bdrv_dirty_bitmap_deserialize_part(BdrvDirtyBitmap *bitmap,
69 uint8_t *buf, uint64_t offset,
70 uint64_t bytes, bool finish);
71void bdrv_dirty_bitmap_deserialize_zeroes(BdrvDirtyBitmap *bitmap,
72 uint64_t offset, uint64_t bytes,
73 bool finish);
74void bdrv_dirty_bitmap_deserialize_ones(BdrvDirtyBitmap *bitmap,
75 uint64_t offset, uint64_t bytes,
76 bool finish);
77void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap);
78
79void bdrv_dirty_bitmap_set_readonly(BdrvDirtyBitmap *bitmap, bool value);
80void bdrv_dirty_bitmap_set_persistence(BdrvDirtyBitmap *bitmap,
81 bool persistent);
82void bdrv_dirty_bitmap_set_inconsistent(BdrvDirtyBitmap *bitmap);
83void bdrv_dirty_bitmap_set_busy(BdrvDirtyBitmap *bitmap, bool busy);
84void bdrv_merge_dirty_bitmap(BdrvDirtyBitmap *dest, const BdrvDirtyBitmap *src,
85 HBitmap **backup, Error **errp);
86void bdrv_dirty_bitmap_set_migration(BdrvDirtyBitmap *bitmap, bool migration);
87
88
89void bdrv_dirty_bitmap_lock(BdrvDirtyBitmap *bitmap);
90void bdrv_dirty_bitmap_unlock(BdrvDirtyBitmap *bitmap);
91bool bdrv_get_dirty_locked(BlockDriverState *bs, BdrvDirtyBitmap *bitmap,
92 int64_t offset);
93void bdrv_set_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap,
94 int64_t offset, int64_t bytes);
95void bdrv_reset_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap,
96 int64_t offset, int64_t bytes);
97int64_t bdrv_dirty_iter_next(BdrvDirtyBitmapIter *iter);
98void bdrv_set_dirty_iter(BdrvDirtyBitmapIter *hbi, int64_t offset);
99int64_t bdrv_get_dirty_count(BdrvDirtyBitmap *bitmap);
100int64_t bdrv_get_meta_dirty_count(BdrvDirtyBitmap *bitmap);
101void bdrv_dirty_bitmap_truncate(BlockDriverState *bs, int64_t bytes);
102bool bdrv_dirty_bitmap_readonly(const BdrvDirtyBitmap *bitmap);
103bool bdrv_has_readonly_bitmaps(BlockDriverState *bs);
104bool bdrv_dirty_bitmap_get_autoload(const BdrvDirtyBitmap *bitmap);
105bool bdrv_dirty_bitmap_get_persistence(BdrvDirtyBitmap *bitmap);
106bool bdrv_dirty_bitmap_inconsistent(const BdrvDirtyBitmap *bitmap);
107bool bdrv_has_changed_persistent_bitmaps(BlockDriverState *bs);
108BdrvDirtyBitmap *bdrv_dirty_bitmap_next(BlockDriverState *bs,
109 BdrvDirtyBitmap *bitmap);
110char *bdrv_dirty_bitmap_sha256(const BdrvDirtyBitmap *bitmap, Error **errp);
111int64_t bdrv_dirty_bitmap_next_zero(BdrvDirtyBitmap *bitmap, uint64_t offset,
112 uint64_t bytes);
113bool bdrv_dirty_bitmap_next_dirty_area(BdrvDirtyBitmap *bitmap,
114 uint64_t *offset, uint64_t *bytes);
115BdrvDirtyBitmap *bdrv_reclaim_dirty_bitmap_locked(BlockDriverState *bs,
116 BdrvDirtyBitmap *bitmap,
117 Error **errp);
118
119#endif
120
