1 #ifndef BLOCK_DIRTY_BITMAP_H 2 #define BLOCK_DIRTY_BITMAP_H 3 4 #include "qemu-common.h" 5 #include "qemu/hbitmap.h" 6 7 BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverState *bs, 8 uint32_t granularity, 9 const char *name, 10 Error **errp); 11 void bdrv_create_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap, 12 int chunk_size); 13 void bdrv_release_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap); 14 int bdrv_dirty_bitmap_create_successor(BlockDriverState *bs, 15 BdrvDirtyBitmap *bitmap, 16 Error **errp); 17 BdrvDirtyBitmap *bdrv_dirty_bitmap_abdicate(BlockDriverState *bs, 18 BdrvDirtyBitmap *bitmap, 19 Error **errp); 20 BdrvDirtyBitmap *bdrv_reclaim_dirty_bitmap(BlockDriverState *bs, 21 BdrvDirtyBitmap *bitmap, 22 Error **errp); 23 BdrvDirtyBitmap *bdrv_find_dirty_bitmap(BlockDriverState *bs, 24 const char *name); 25 void bdrv_dirty_bitmap_make_anon(BdrvDirtyBitmap *bitmap); 26 void bdrv_release_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap); 27 void bdrv_release_named_dirty_bitmaps(BlockDriverState *bs); 28 void bdrv_release_persistent_dirty_bitmaps(BlockDriverState *bs); 29 void bdrv_remove_persistent_dirty_bitmap(BlockDriverState *bs, 30 const char *name, 31 Error **errp); 32 void bdrv_disable_dirty_bitmap(BdrvDirtyBitmap *bitmap); 33 void bdrv_enable_dirty_bitmap(BdrvDirtyBitmap *bitmap); 34 BlockDirtyInfoList *bdrv_query_dirty_bitmaps(BlockDriverState *bs); 35 uint32_t bdrv_get_default_bitmap_granularity(BlockDriverState *bs); 36 uint32_t bdrv_dirty_bitmap_granularity(const BdrvDirtyBitmap *bitmap); 37 uint32_t bdrv_dirty_bitmap_meta_granularity(BdrvDirtyBitmap *bitmap); 38 bool bdrv_dirty_bitmap_enabled(BdrvDirtyBitmap *bitmap); 39 bool bdrv_dirty_bitmap_frozen(BdrvDirtyBitmap *bitmap); 40 const char *bdrv_dirty_bitmap_name(const BdrvDirtyBitmap *bitmap); 41 int64_t bdrv_dirty_bitmap_size(const BdrvDirtyBitmap *bitmap); 42 DirtyBitmapStatus bdrv_dirty_bitmap_status(BdrvDirtyBitmap *bitmap); 43 void bdrv_set_dirty_bitmap(BdrvDirtyBitmap *bitmap, 44 int64_t cur_sector, int64_t nr_sectors); 45 void bdrv_reset_dirty_bitmap(BdrvDirtyBitmap *bitmap, 46 int64_t cur_sector, int64_t nr_sectors); 47 int bdrv_dirty_bitmap_get_meta(BlockDriverState *bs, 48 BdrvDirtyBitmap *bitmap, int64_t sector, 49 int nb_sectors); 50 int bdrv_dirty_bitmap_get_meta_locked(BlockDriverState *bs, 51 BdrvDirtyBitmap *bitmap, int64_t sector, 52 int nb_sectors); 53 void bdrv_dirty_bitmap_reset_meta(BlockDriverState *bs, 54 BdrvDirtyBitmap *bitmap, int64_t sector, 55 int nb_sectors); 56 BdrvDirtyBitmapIter *bdrv_dirty_meta_iter_new(BdrvDirtyBitmap *bitmap); 57 BdrvDirtyBitmapIter *bdrv_dirty_iter_new(BdrvDirtyBitmap *bitmap, 58 uint64_t first_sector); 59 void bdrv_dirty_iter_free(BdrvDirtyBitmapIter *iter); 60 61 uint64_t bdrv_dirty_bitmap_serialization_size(const BdrvDirtyBitmap *bitmap, 62 uint64_t start, uint64_t count); 63 uint64_t bdrv_dirty_bitmap_serialization_align(const BdrvDirtyBitmap *bitmap); 64 void bdrv_dirty_bitmap_serialize_part(const BdrvDirtyBitmap *bitmap, 65 uint8_t *buf, uint64_t start, 66 uint64_t count); 67 void bdrv_dirty_bitmap_deserialize_part(BdrvDirtyBitmap *bitmap, 68 uint8_t *buf, uint64_t start, 69 uint64_t count, bool finish); 70 void bdrv_dirty_bitmap_deserialize_zeroes(BdrvDirtyBitmap *bitmap, 71 uint64_t start, uint64_t count, 72 bool finish); 73 void bdrv_dirty_bitmap_deserialize_ones(BdrvDirtyBitmap *bitmap, 74 uint64_t start, uint64_t count, 75 bool finish); 76 void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap); 77 78 void bdrv_dirty_bitmap_set_readonly(BdrvDirtyBitmap *bitmap, bool value); 79 void bdrv_dirty_bitmap_set_autoload(BdrvDirtyBitmap *bitmap, bool autoload); 80 void bdrv_dirty_bitmap_set_persistance(BdrvDirtyBitmap *bitmap, 81 bool persistent); 82 83 /* Functions that require manual locking. */ 84 void bdrv_dirty_bitmap_lock(BdrvDirtyBitmap *bitmap); 85 void bdrv_dirty_bitmap_unlock(BdrvDirtyBitmap *bitmap); 86 int bdrv_get_dirty_locked(BlockDriverState *bs, BdrvDirtyBitmap *bitmap, 87 int64_t sector); 88 void bdrv_set_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap, 89 int64_t cur_sector, int64_t nr_sectors); 90 void bdrv_reset_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap, 91 int64_t cur_sector, int64_t nr_sectors); 92 int64_t bdrv_dirty_iter_next(BdrvDirtyBitmapIter *iter); 93 void bdrv_set_dirty_iter(BdrvDirtyBitmapIter *hbi, int64_t sector_num); 94 int64_t bdrv_get_dirty_count(BdrvDirtyBitmap *bitmap); 95 int64_t bdrv_get_meta_dirty_count(BdrvDirtyBitmap *bitmap); 96 void bdrv_dirty_bitmap_truncate(BlockDriverState *bs); 97 bool bdrv_dirty_bitmap_readonly(const BdrvDirtyBitmap *bitmap); 98 bool bdrv_has_readonly_bitmaps(BlockDriverState *bs); 99 bool bdrv_dirty_bitmap_get_autoload(const BdrvDirtyBitmap *bitmap); 100 bool bdrv_dirty_bitmap_get_persistance(BdrvDirtyBitmap *bitmap); 101 bool bdrv_has_changed_persistent_bitmaps(BlockDriverState *bs); 102 BdrvDirtyBitmap *bdrv_dirty_bitmap_next(BlockDriverState *bs, 103 BdrvDirtyBitmap *bitmap); 104 char *bdrv_dirty_bitmap_sha256(const BdrvDirtyBitmap *bitmap, Error **errp); 105 106 #endif 107