int (*bdrv_set_key)(BlockDriverState *bs, const char *key);
int (*bdrv_make_empty)(BlockDriverState *bs);
/* aio */
- BlockDriverAIOCB *(*bdrv_aio_read)(BlockDriverState *bs,
- int64_t sector_num, uint8_t *buf, int nb_sectors,
+ BlockDriverAIOCB *(*bdrv_aio_readv)(BlockDriverState *bs,
+ int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
BlockDriverCompletionFunc *cb, void *opaque);
- BlockDriverAIOCB *(*bdrv_aio_write)(BlockDriverState *bs,
- int64_t sector_num, const uint8_t *buf, int nb_sectors,
+ BlockDriverAIOCB *(*bdrv_aio_writev)(BlockDriverState *bs,
+ int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
BlockDriverCompletionFunc *cb, void *opaque);
void (*bdrv_aio_cancel)(BlockDriverAIOCB *acb);
int aiocb_size;
QEMUSnapshotInfo **psn_info);
int (*bdrv_get_info)(BlockDriverState *bs, BlockDriverInfo *bdi);
+ int (*bdrv_put_buffer)(BlockDriverState *bs, const uint8_t *buf,
+ int64_t pos, int size);
+ int (*bdrv_get_buffer)(BlockDriverState *bs, uint8_t *buf,
+ int64_t pos, int size);
+
/* removable device specific */
int (*bdrv_is_inserted)(BlockDriverState *bs);
int (*bdrv_media_changed)(BlockDriverState *bs);
BlockDriverCompletionFunc *cb, void *opaque);
AIOPool aio_pool;
+
+ /* new create with backing file format */
+ int (*bdrv_create2)(const char *filename, int64_t total_sectors,
+ const char *backing_file, const char *backing_format,
+ int flags);
+
+ /* Returns number of errors in image, -errno for internal errors */
+ int (*bdrv_check)(BlockDriverState* bs);
+
struct BlockDriver *next;
};
char filename[1024];
char backing_file[1024]; /* if non zero, the image is a diff of
this file image */
+ char backing_format[16]; /* if non-zero and backing_file exists */
int is_temporary;
int media_changed;
/* Whether the disk can expand beyond total_sectors */
int growable;
+ /* the memory alignment required for the buffers handled by this driver */
+ int buffer_alignment;
+
/* NOTE: the following infos are only hints for real hardware
drivers. They are not used by the block driver */
int cyls, heads, secs, translation;
BlockDriverCompletionFunc *cb, void *opaque);
void qemu_aio_release(void *p);
+void *qemu_blockalign(BlockDriverState *bs, size_t size);
+
extern BlockDriverState *bdrv_first;
#endif /* BLOCK_INT_H */