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); 28*615b5dcfSVladimir 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); 376d3f4049SFam Zheng uint32_t bdrv_dirty_bitmap_meta_granularity(BdrvDirtyBitmap *bitmap); 38ebab2259SFam Zheng bool bdrv_dirty_bitmap_enabled(BdrvDirtyBitmap *bitmap); 39ebab2259SFam Zheng bool bdrv_dirty_bitmap_frozen(BdrvDirtyBitmap *bitmap); 4015891facSFam Zheng const char *bdrv_dirty_bitmap_name(const BdrvDirtyBitmap *bitmap); 4115891facSFam Zheng int64_t bdrv_dirty_bitmap_size(const BdrvDirtyBitmap *bitmap); 42ebab2259SFam Zheng DirtyBitmapStatus bdrv_dirty_bitmap_status(BdrvDirtyBitmap *bitmap); 43ebab2259SFam Zheng void bdrv_set_dirty_bitmap(BdrvDirtyBitmap *bitmap, 446d078599SDenis V. Lunev int64_t cur_sector, int64_t nr_sectors); 45ebab2259SFam Zheng void bdrv_reset_dirty_bitmap(BdrvDirtyBitmap *bitmap, 466d078599SDenis V. Lunev int64_t cur_sector, int64_t nr_sectors); 47fb933437SFam Zheng int bdrv_dirty_bitmap_get_meta(BlockDriverState *bs, 48fb933437SFam Zheng BdrvDirtyBitmap *bitmap, int64_t sector, 49fb933437SFam Zheng int nb_sectors); 50b64bd51eSPaolo Bonzini int bdrv_dirty_bitmap_get_meta_locked(BlockDriverState *bs, 51b64bd51eSPaolo Bonzini BdrvDirtyBitmap *bitmap, int64_t sector, 52b64bd51eSPaolo Bonzini int nb_sectors); 53fb933437SFam Zheng void bdrv_dirty_bitmap_reset_meta(BlockDriverState *bs, 54fb933437SFam Zheng BdrvDirtyBitmap *bitmap, int64_t sector, 55fb933437SFam Zheng int nb_sectors); 566d3f4049SFam Zheng BdrvDirtyBitmapIter *bdrv_dirty_meta_iter_new(BdrvDirtyBitmap *bitmap); 57dc162c8eSFam Zheng BdrvDirtyBitmapIter *bdrv_dirty_iter_new(BdrvDirtyBitmap *bitmap, 58dc162c8eSFam Zheng uint64_t first_sector); 59dc162c8eSFam Zheng void bdrv_dirty_iter_free(BdrvDirtyBitmapIter *iter); 60ebab2259SFam Zheng 61882c36f5SVladimir Sementsov-Ogievskiy uint64_t bdrv_dirty_bitmap_serialization_size(const BdrvDirtyBitmap *bitmap, 62882c36f5SVladimir Sementsov-Ogievskiy uint64_t start, uint64_t count); 63882c36f5SVladimir Sementsov-Ogievskiy uint64_t bdrv_dirty_bitmap_serialization_align(const BdrvDirtyBitmap *bitmap); 64882c36f5SVladimir Sementsov-Ogievskiy void bdrv_dirty_bitmap_serialize_part(const BdrvDirtyBitmap *bitmap, 65882c36f5SVladimir Sementsov-Ogievskiy uint8_t *buf, uint64_t start, 66882c36f5SVladimir Sementsov-Ogievskiy uint64_t count); 67882c36f5SVladimir Sementsov-Ogievskiy void bdrv_dirty_bitmap_deserialize_part(BdrvDirtyBitmap *bitmap, 68882c36f5SVladimir Sementsov-Ogievskiy uint8_t *buf, uint64_t start, 69882c36f5SVladimir Sementsov-Ogievskiy uint64_t count, bool finish); 70882c36f5SVladimir Sementsov-Ogievskiy void bdrv_dirty_bitmap_deserialize_zeroes(BdrvDirtyBitmap *bitmap, 71882c36f5SVladimir Sementsov-Ogievskiy uint64_t start, uint64_t count, 72882c36f5SVladimir Sementsov-Ogievskiy bool finish); 736bdc8b71SVladimir Sementsov-Ogievskiy void bdrv_dirty_bitmap_deserialize_ones(BdrvDirtyBitmap *bitmap, 746bdc8b71SVladimir Sementsov-Ogievskiy uint64_t start, uint64_t count, 756bdc8b71SVladimir Sementsov-Ogievskiy bool finish); 76882c36f5SVladimir Sementsov-Ogievskiy void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap); 77882c36f5SVladimir Sementsov-Ogievskiy 78d6883bc9SVladimir Sementsov-Ogievskiy void bdrv_dirty_bitmap_set_readonly(BdrvDirtyBitmap *bitmap, bool value); 79a0319aacSVladimir Sementsov-Ogievskiy void bdrv_dirty_bitmap_set_autoload(BdrvDirtyBitmap *bitmap, bool autoload); 80a88b179fSVladimir Sementsov-Ogievskiy void bdrv_dirty_bitmap_set_persistance(BdrvDirtyBitmap *bitmap, 81a88b179fSVladimir Sementsov-Ogievskiy bool persistent); 82d6883bc9SVladimir Sementsov-Ogievskiy 83b64bd51eSPaolo Bonzini /* Functions that require manual locking. */ 84b64bd51eSPaolo Bonzini void bdrv_dirty_bitmap_lock(BdrvDirtyBitmap *bitmap); 85b64bd51eSPaolo Bonzini void bdrv_dirty_bitmap_unlock(BdrvDirtyBitmap *bitmap); 86b64bd51eSPaolo Bonzini int bdrv_get_dirty_locked(BlockDriverState *bs, BdrvDirtyBitmap *bitmap, 87b64bd51eSPaolo Bonzini int64_t sector); 88b64bd51eSPaolo Bonzini void bdrv_set_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap, 89b64bd51eSPaolo Bonzini int64_t cur_sector, int64_t nr_sectors); 90b64bd51eSPaolo Bonzini void bdrv_reset_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap, 91b64bd51eSPaolo Bonzini int64_t cur_sector, int64_t nr_sectors); 92b64bd51eSPaolo Bonzini int64_t bdrv_dirty_iter_next(BdrvDirtyBitmapIter *iter); 93b64bd51eSPaolo Bonzini void bdrv_set_dirty_iter(BdrvDirtyBitmapIter *hbi, int64_t sector_num); 94b64bd51eSPaolo Bonzini int64_t bdrv_get_dirty_count(BdrvDirtyBitmap *bitmap); 95b64bd51eSPaolo Bonzini int64_t bdrv_get_meta_dirty_count(BdrvDirtyBitmap *bitmap); 96b64bd51eSPaolo Bonzini void bdrv_dirty_bitmap_truncate(BlockDriverState *bs); 97d6883bc9SVladimir Sementsov-Ogievskiy bool bdrv_dirty_bitmap_readonly(const BdrvDirtyBitmap *bitmap); 98d6883bc9SVladimir Sementsov-Ogievskiy bool bdrv_has_readonly_bitmaps(BlockDriverState *bs); 99a0319aacSVladimir Sementsov-Ogievskiy bool bdrv_dirty_bitmap_get_autoload(const BdrvDirtyBitmap *bitmap); 100a88b179fSVladimir Sementsov-Ogievskiy bool bdrv_dirty_bitmap_get_persistance(BdrvDirtyBitmap *bitmap); 101a88b179fSVladimir Sementsov-Ogievskiy bool bdrv_has_changed_persistent_bitmaps(BlockDriverState *bs); 1023dd10a06SVladimir Sementsov-Ogievskiy BdrvDirtyBitmap *bdrv_dirty_bitmap_next(BlockDriverState *bs, 1033dd10a06SVladimir Sementsov-Ogievskiy BdrvDirtyBitmap *bitmap); 104a3b52535SVladimir Sementsov-Ogievskiy char *bdrv_dirty_bitmap_sha256(const BdrvDirtyBitmap *bitmap, Error **errp); 105b64bd51eSPaolo Bonzini 106ebab2259SFam Zheng #endif 107