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