1ebab2259SFam Zheng #ifndef BLOCK_DIRTY_BITMAP_H 2ebab2259SFam Zheng #define BLOCK_DIRTY_BITMAP_H 3ebab2259SFam Zheng 4ebab2259SFam Zheng #include "qemu-common.h" 5ebab2259SFam Zheng #include "qemu/hbitmap.h" 6ebab2259SFam Zheng 7ebab2259SFam Zheng BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverState *bs, 8ebab2259SFam Zheng uint32_t granularity, 9ebab2259SFam Zheng const char *name, 10ebab2259SFam Zheng Error **errp); 11fb933437SFam Zheng void bdrv_create_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap, 12fb933437SFam Zheng int chunk_size); 13fb933437SFam Zheng void bdrv_release_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap); 14ebab2259SFam Zheng int bdrv_dirty_bitmap_create_successor(BlockDriverState *bs, 15ebab2259SFam Zheng BdrvDirtyBitmap *bitmap, 16ebab2259SFam Zheng Error **errp); 17ebab2259SFam Zheng BdrvDirtyBitmap *bdrv_dirty_bitmap_abdicate(BlockDriverState *bs, 18ebab2259SFam Zheng BdrvDirtyBitmap *bitmap, 19ebab2259SFam Zheng Error **errp); 20ebab2259SFam Zheng BdrvDirtyBitmap *bdrv_reclaim_dirty_bitmap(BlockDriverState *bs, 21ebab2259SFam Zheng BdrvDirtyBitmap *bitmap, 22ebab2259SFam Zheng Error **errp); 23ebab2259SFam Zheng BdrvDirtyBitmap *bdrv_find_dirty_bitmap(BlockDriverState *bs, 24ebab2259SFam Zheng const char *name); 25ebab2259SFam Zheng void bdrv_dirty_bitmap_make_anon(BdrvDirtyBitmap *bitmap); 26ebab2259SFam Zheng void bdrv_release_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap); 27ebab2259SFam Zheng void bdrv_release_named_dirty_bitmaps(BlockDriverState *bs); 28615b5dcfSVladimir Sementsov-Ogievskiy void bdrv_release_persistent_dirty_bitmaps(BlockDriverState *bs); 2956f364e6SVladimir Sementsov-Ogievskiy void bdrv_remove_persistent_dirty_bitmap(BlockDriverState *bs, 3056f364e6SVladimir Sementsov-Ogievskiy const char *name, 3156f364e6SVladimir Sementsov-Ogievskiy Error **errp); 32ebab2259SFam Zheng void bdrv_disable_dirty_bitmap(BdrvDirtyBitmap *bitmap); 33ebab2259SFam Zheng void bdrv_enable_dirty_bitmap(BdrvDirtyBitmap *bitmap); 34ebab2259SFam Zheng BlockDirtyInfoList *bdrv_query_dirty_bitmaps(BlockDriverState *bs); 35ebab2259SFam Zheng uint32_t bdrv_get_default_bitmap_granularity(BlockDriverState *bs); 36ba06ff1aSVladimir Sementsov-Ogievskiy uint32_t bdrv_dirty_bitmap_granularity(const BdrvDirtyBitmap *bitmap); 37ebab2259SFam Zheng bool bdrv_dirty_bitmap_enabled(BdrvDirtyBitmap *bitmap); 38ebab2259SFam Zheng bool bdrv_dirty_bitmap_frozen(BdrvDirtyBitmap *bitmap); 3915891facSFam Zheng const char *bdrv_dirty_bitmap_name(const BdrvDirtyBitmap *bitmap); 4015891facSFam Zheng int64_t bdrv_dirty_bitmap_size(const BdrvDirtyBitmap *bitmap); 41ebab2259SFam Zheng DirtyBitmapStatus bdrv_dirty_bitmap_status(BdrvDirtyBitmap *bitmap); 42ebab2259SFam Zheng void bdrv_set_dirty_bitmap(BdrvDirtyBitmap *bitmap, 43*e0d7f73eSEric Blake int64_t offset, int64_t bytes); 44ebab2259SFam Zheng void bdrv_reset_dirty_bitmap(BdrvDirtyBitmap *bitmap, 45*e0d7f73eSEric Blake int64_t offset, int64_t bytes); 466d3f4049SFam Zheng BdrvDirtyBitmapIter *bdrv_dirty_meta_iter_new(BdrvDirtyBitmap *bitmap); 47715a74d8SEric Blake BdrvDirtyBitmapIter *bdrv_dirty_iter_new(BdrvDirtyBitmap *bitmap); 48dc162c8eSFam Zheng void bdrv_dirty_iter_free(BdrvDirtyBitmapIter *iter); 49ebab2259SFam Zheng 50882c36f5SVladimir Sementsov-Ogievskiy uint64_t bdrv_dirty_bitmap_serialization_size(const BdrvDirtyBitmap *bitmap, 5186f6ae67SEric Blake uint64_t offset, uint64_t bytes); 52882c36f5SVladimir Sementsov-Ogievskiy uint64_t bdrv_dirty_bitmap_serialization_align(const BdrvDirtyBitmap *bitmap); 53882c36f5SVladimir Sementsov-Ogievskiy void bdrv_dirty_bitmap_serialize_part(const BdrvDirtyBitmap *bitmap, 5486f6ae67SEric Blake uint8_t *buf, uint64_t offset, 5586f6ae67SEric Blake uint64_t bytes); 56882c36f5SVladimir Sementsov-Ogievskiy void bdrv_dirty_bitmap_deserialize_part(BdrvDirtyBitmap *bitmap, 5786f6ae67SEric Blake uint8_t *buf, uint64_t offset, 5886f6ae67SEric Blake uint64_t bytes, bool finish); 59882c36f5SVladimir Sementsov-Ogievskiy void bdrv_dirty_bitmap_deserialize_zeroes(BdrvDirtyBitmap *bitmap, 6086f6ae67SEric Blake uint64_t offset, uint64_t bytes, 61882c36f5SVladimir Sementsov-Ogievskiy bool finish); 626bdc8b71SVladimir Sementsov-Ogievskiy void bdrv_dirty_bitmap_deserialize_ones(BdrvDirtyBitmap *bitmap, 6386f6ae67SEric Blake uint64_t offset, uint64_t bytes, 646bdc8b71SVladimir Sementsov-Ogievskiy bool finish); 65882c36f5SVladimir Sementsov-Ogievskiy void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap); 66882c36f5SVladimir Sementsov-Ogievskiy 67d6883bc9SVladimir Sementsov-Ogievskiy void bdrv_dirty_bitmap_set_readonly(BdrvDirtyBitmap *bitmap, bool value); 68a0319aacSVladimir Sementsov-Ogievskiy void bdrv_dirty_bitmap_set_autoload(BdrvDirtyBitmap *bitmap, bool autoload); 69a88b179fSVladimir Sementsov-Ogievskiy void bdrv_dirty_bitmap_set_persistance(BdrvDirtyBitmap *bitmap, 70a88b179fSVladimir Sementsov-Ogievskiy bool persistent); 71d6883bc9SVladimir Sementsov-Ogievskiy 72b64bd51eSPaolo Bonzini /* Functions that require manual locking. */ 73b64bd51eSPaolo Bonzini void bdrv_dirty_bitmap_lock(BdrvDirtyBitmap *bitmap); 74b64bd51eSPaolo Bonzini void bdrv_dirty_bitmap_unlock(BdrvDirtyBitmap *bitmap); 753b5d4df0SEric Blake bool bdrv_get_dirty_locked(BlockDriverState *bs, BdrvDirtyBitmap *bitmap, 763b5d4df0SEric Blake int64_t offset); 77b64bd51eSPaolo Bonzini void bdrv_set_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap, 78*e0d7f73eSEric Blake int64_t offset, int64_t bytes); 79b64bd51eSPaolo Bonzini void bdrv_reset_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap, 80*e0d7f73eSEric Blake int64_t offset, int64_t bytes); 81b64bd51eSPaolo Bonzini int64_t bdrv_dirty_iter_next(BdrvDirtyBitmapIter *iter); 82715a74d8SEric Blake void bdrv_set_dirty_iter(BdrvDirtyBitmapIter *hbi, int64_t offset); 83b64bd51eSPaolo Bonzini int64_t bdrv_get_dirty_count(BdrvDirtyBitmap *bitmap); 84b64bd51eSPaolo Bonzini int64_t bdrv_get_meta_dirty_count(BdrvDirtyBitmap *bitmap); 851b6cc579SEric Blake void bdrv_dirty_bitmap_truncate(BlockDriverState *bs, int64_t bytes); 86d6883bc9SVladimir Sementsov-Ogievskiy bool bdrv_dirty_bitmap_readonly(const BdrvDirtyBitmap *bitmap); 87d6883bc9SVladimir Sementsov-Ogievskiy bool bdrv_has_readonly_bitmaps(BlockDriverState *bs); 88a0319aacSVladimir Sementsov-Ogievskiy bool bdrv_dirty_bitmap_get_autoload(const BdrvDirtyBitmap *bitmap); 89a88b179fSVladimir Sementsov-Ogievskiy bool bdrv_dirty_bitmap_get_persistance(BdrvDirtyBitmap *bitmap); 90a88b179fSVladimir Sementsov-Ogievskiy bool bdrv_has_changed_persistent_bitmaps(BlockDriverState *bs); 913dd10a06SVladimir Sementsov-Ogievskiy BdrvDirtyBitmap *bdrv_dirty_bitmap_next(BlockDriverState *bs, 923dd10a06SVladimir Sementsov-Ogievskiy BdrvDirtyBitmap *bitmap); 93a3b52535SVladimir Sementsov-Ogievskiy char *bdrv_dirty_bitmap_sha256(const BdrvDirtyBitmap *bitmap, Error **errp); 94b64bd51eSPaolo Bonzini 95ebab2259SFam Zheng #endif 96