#ifndef BLOCK_DIRTY_BITMAP_H #define BLOCK_DIRTY_BITMAP_H #include "block/block-common.h" #include "qapi/qapi-types-block-core.h" #include "qemu/hbitmap.h" typedef enum BitmapCheckFlags { BDRV_BITMAP_BUSY = 1, BDRV_BITMAP_RO = 2, BDRV_BITMAP_INCONSISTENT = 4, } BitmapCheckFlags; #define BDRV_BITMAP_DEFAULT (BDRV_BITMAP_BUSY | BDRV_BITMAP_RO | \ BDRV_BITMAP_INCONSISTENT) #define BDRV_BITMAP_ALLOW_RO (BDRV_BITMAP_BUSY | BDRV_BITMAP_INCONSISTENT) #define BDRV_BITMAP_MAX_NAME_SIZE 1023 bool bdrv_supports_persistent_dirty_bitmap(BlockDriverState *bs); BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverState *bs, uint32_t granularity, const char *name, Error **errp); int bdrv_dirty_bitmap_create_successor(BdrvDirtyBitmap *bitmap, Error **errp); BdrvDirtyBitmap *bdrv_dirty_bitmap_abdicate(BdrvDirtyBitmap *bitmap, Error **errp); BdrvDirtyBitmap *bdrv_reclaim_dirty_bitmap(BdrvDirtyBitmap *bitmap, Error **errp); void bdrv_dirty_bitmap_enable_successor(BdrvDirtyBitmap *bitmap); BdrvDirtyBitmap *bdrv_find_dirty_bitmap(BlockDriverState *bs, const char *name); int bdrv_dirty_bitmap_check(const BdrvDirtyBitmap *bitmap, uint32_t flags, Error **errp); void bdrv_release_dirty_bitmap(BdrvDirtyBitmap *bitmap); void bdrv_release_named_dirty_bitmaps(BlockDriverState *bs); int coroutine_fn bdrv_co_remove_persistent_dirty_bitmap(BlockDriverState *bs, const char *name, Error **errp); int co_wrapper bdrv_remove_persistent_dirty_bitmap(BlockDriverState *bs, const char *name, Error **errp); void bdrv_disable_dirty_bitmap(BdrvDirtyBitmap *bitmap); void bdrv_enable_dirty_bitmap(BdrvDirtyBitmap *bitmap); void bdrv_enable_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap); BlockDirtyInfoList *bdrv_query_dirty_bitmaps(BlockDriverState *bs); uint32_t bdrv_get_default_bitmap_granularity(BlockDriverState *bs); uint32_t bdrv_dirty_bitmap_granularity(const BdrvDirtyBitmap *bitmap); bool bdrv_dirty_bitmap_enabled(BdrvDirtyBitmap *bitmap); bool bdrv_dirty_bitmap_has_successor(BdrvDirtyBitmap *bitmap); const char *bdrv_dirty_bitmap_name(const BdrvDirtyBitmap *bitmap); int64_t bdrv_dirty_bitmap_size(const BdrvDirtyBitmap *bitmap); void bdrv_set_dirty_bitmap(BdrvDirtyBitmap *bitmap, int64_t offset, int64_t bytes); void bdrv_reset_dirty_bitmap(BdrvDirtyBitmap *bitmap, int64_t offset, int64_t bytes); BdrvDirtyBitmapIter *bdrv_dirty_iter_new(BdrvDirtyBitmap *bitmap); void bdrv_dirty_iter_free(BdrvDirtyBitmapIter *iter); uint64_t bdrv_dirty_bitmap_serialization_size(const BdrvDirtyBitmap *bitmap, uint64_t offset, uint64_t bytes); uint64_t bdrv_dirty_bitmap_serialization_align(const BdrvDirtyBitmap *bitmap); uint64_t bdrv_dirty_bitmap_serialization_coverage(int serialized_chunk_size, const BdrvDirtyBitmap *bitmap); void bdrv_dirty_bitmap_serialize_part(const BdrvDirtyBitmap *bitmap, uint8_t *buf, uint64_t offset, uint64_t bytes); void bdrv_dirty_bitmap_deserialize_part(BdrvDirtyBitmap *bitmap, uint8_t *buf, uint64_t offset, uint64_t bytes, bool finish); void bdrv_dirty_bitmap_deserialize_zeroes(BdrvDirtyBitmap *bitmap, uint64_t offset, uint64_t bytes, bool finish); void bdrv_dirty_bitmap_deserialize_ones(BdrvDirtyBitmap *bitmap, uint64_t offset, uint64_t bytes, bool finish); void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap); void bdrv_dirty_bitmap_set_readonly(BdrvDirtyBitmap *bitmap, bool value); void bdrv_dirty_bitmap_set_persistence(BdrvDirtyBitmap *bitmap, bool persistent); void bdrv_dirty_bitmap_set_inconsistent(BdrvDirtyBitmap *bitmap); void bdrv_dirty_bitmap_set_busy(BdrvDirtyBitmap *bitmap, bool busy); bool bdrv_merge_dirty_bitmap(BdrvDirtyBitmap *dest, const BdrvDirtyBitmap *src, HBitmap **backup, Error **errp); void bdrv_dirty_bitmap_skip_store(BdrvDirtyBitmap *bitmap, bool skip); bool bdrv_dirty_bitmap_get(BdrvDirtyBitmap *bitmap, int64_t offset); /* Functions that require manual locking. */ void bdrv_dirty_bitmap_lock(BdrvDirtyBitmap *bitmap); void bdrv_dirty_bitmap_unlock(BdrvDirtyBitmap *bitmap); bool bdrv_dirty_bitmap_get_locked(BdrvDirtyBitmap *bitmap, int64_t offset); void bdrv_set_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap, int64_t offset, int64_t bytes); void bdrv_reset_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap, int64_t offset, int64_t bytes); int64_t bdrv_dirty_iter_next(BdrvDirtyBitmapIter *iter); void bdrv_set_dirty_iter(BdrvDirtyBitmapIter *hbi, int64_t offset); int64_t bdrv_get_dirty_count(BdrvDirtyBitmap *bitmap); void bdrv_dirty_bitmap_truncate(BlockDriverState *bs, int64_t bytes); bool bdrv_dirty_bitmap_readonly(const BdrvDirtyBitmap *bitmap); bool bdrv_has_readonly_bitmaps(BlockDriverState *bs); bool bdrv_has_named_bitmaps(BlockDriverState *bs); bool bdrv_dirty_bitmap_get_autoload(const BdrvDirtyBitmap *bitmap); bool bdrv_dirty_bitmap_get_persistence(BdrvDirtyBitmap *bitmap); bool bdrv_dirty_bitmap_inconsistent(const BdrvDirtyBitmap *bitmap); BdrvDirtyBitmap *bdrv_dirty_bitmap_first(BlockDriverState *bs); BdrvDirtyBitmap *bdrv_dirty_bitmap_next(BdrvDirtyBitmap *bitmap); #define FOR_EACH_DIRTY_BITMAP(bs, bitmap) \ for (bitmap = bdrv_dirty_bitmap_first(bs); bitmap; \ bitmap = bdrv_dirty_bitmap_next(bitmap)) char *bdrv_dirty_bitmap_sha256(const BdrvDirtyBitmap *bitmap, Error **errp); int64_t bdrv_dirty_bitmap_next_dirty(BdrvDirtyBitmap *bitmap, int64_t offset, int64_t bytes); int64_t bdrv_dirty_bitmap_next_zero(BdrvDirtyBitmap *bitmap, int64_t offset, int64_t bytes); bool bdrv_dirty_bitmap_next_dirty_area(BdrvDirtyBitmap *bitmap, int64_t start, int64_t end, int64_t max_dirty_count, int64_t *dirty_start, int64_t *dirty_count); bool bdrv_dirty_bitmap_status(BdrvDirtyBitmap *bitmap, int64_t offset, int64_t bytes, int64_t *count); BdrvDirtyBitmap *bdrv_reclaim_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap, Error **errp); #endif