#include "qemu-aio.h"
#include "qemu-common.h"
+#include "qemu-option.h"
+#include "qobject.h"
/* block.c */
typedef struct BlockDriver BlockDriver;
-extern BlockDriver bdrv_raw;
-extern BlockDriver bdrv_host_device;
-extern BlockDriver bdrv_cow;
-extern BlockDriver bdrv_qcow;
-extern BlockDriver bdrv_vmdk;
-extern BlockDriver bdrv_cloop;
-extern BlockDriver bdrv_dmg;
-extern BlockDriver bdrv_bochs;
-extern BlockDriver bdrv_vpc;
-extern BlockDriver bdrv_vvfat;
-extern BlockDriver bdrv_qcow2;
-extern BlockDriver bdrv_parallels;
-extern BlockDriver bdrv_nbd;
-
typedef struct BlockDriverInfo {
/* in bytes, 0 if irrelevant */
int cluster_size;
bdrv_file_open()) */
#define BDRV_O_NOCACHE 0x0020 /* do not use the host page cache */
#define BDRV_O_CACHE_WB 0x0040 /* use write-back caching */
-#define BDRV_O_CACHE_DEF 0x0080 /* use default caching */
+#define BDRV_O_NATIVE_AIO 0x0080 /* use native AIO instead of the thread pool */
+
+#define BDRV_O_CACHE_MASK (BDRV_O_NOCACHE | BDRV_O_CACHE_WB)
-#define BDRV_O_CACHE_MASK (BDRV_O_NOCACHE | BDRV_O_CACHE_WB | BDRV_O_CACHE_DEF)
+#define BDRV_SECTOR_BITS 9
+#define BDRV_SECTOR_SIZE (1 << BDRV_SECTOR_BITS)
+#define BDRV_SECTOR_MASK ~(BDRV_SECTOR_SIZE - 1);
-void bdrv_info(Monitor *mon);
-void bdrv_info_stats(Monitor *mon);
+void bdrv_info_print(Monitor *mon, const QObject *data);
+void bdrv_info(Monitor *mon, QObject **ret_data);
+void bdrv_stats_print(Monitor *mon, const QObject *data);
+void bdrv_info_stats(Monitor *mon, QObject **ret_data);
void bdrv_init(void);
+void bdrv_init_with_whitelist(void);
BlockDriver *bdrv_find_format(const char *format_name);
-int bdrv_create(BlockDriver *drv,
- const char *filename, int64_t size_in_sectors,
- const char *backing_file, int flags);
+BlockDriver *bdrv_find_whitelisted_format(const char *format_name);
+int bdrv_create(BlockDriver *drv, const char* filename,
+ QEMUOptionParameter *options);
int bdrv_create2(BlockDriver *drv,
const char *filename, int64_t size_in_sectors,
const char *backing_file, const char *backing_format,
int bdrv_open2(BlockDriverState *bs, const char *filename, int flags,
BlockDriver *drv);
void bdrv_close(BlockDriverState *bs);
+int bdrv_check(BlockDriverState *bs);
int bdrv_read(BlockDriverState *bs, int64_t sector_num,
uint8_t *buf, int nb_sectors);
int bdrv_write(BlockDriverState *bs, int64_t sector_num,
void bdrv_get_geometry(BlockDriverState *bs, uint64_t *nb_sectors_ptr);
void bdrv_guess_geometry(BlockDriverState *bs, int *pcyls, int *pheads, int *psecs);
int bdrv_commit(BlockDriverState *bs);
+void bdrv_register(BlockDriver *bdrv);
+
/* async block I/O */
typedef struct BlockDriverAIOCB BlockDriverAIOCB;
typedef void BlockDriverCompletionFunc(void *opaque, int ret);
-
+typedef void BlockDriverDirtyHandler(BlockDriverState *bs, int64_t sector,
+ int sector_num);
BlockDriverAIOCB *bdrv_aio_readv(BlockDriverState *bs, int64_t sector_num,
QEMUIOVector *iov, int nb_sectors,
BlockDriverCompletionFunc *cb, void *opaque);
BlockDriverAIOCB *bdrv_aio_writev(BlockDriverState *bs, int64_t sector_num,
QEMUIOVector *iov, int nb_sectors,
BlockDriverCompletionFunc *cb, void *opaque);
-
-BlockDriverAIOCB *bdrv_aio_read(BlockDriverState *bs, int64_t sector_num,
- uint8_t *buf, int nb_sectors,
- BlockDriverCompletionFunc *cb, void *opaque);
-BlockDriverAIOCB *bdrv_aio_write(BlockDriverState *bs, int64_t sector_num,
- const uint8_t *buf, int nb_sectors,
- BlockDriverCompletionFunc *cb, void *opaque);
+BlockDriverAIOCB *bdrv_aio_flush(BlockDriverState *bs,
+ BlockDriverCompletionFunc *cb, void *opaque);
void bdrv_aio_cancel(BlockDriverAIOCB *acb);
+typedef struct BlockRequest {
+ /* Fields to be filled by multiwrite caller */
+ int64_t sector;
+ int nb_sectors;
+ QEMUIOVector *qiov;
+ BlockDriverCompletionFunc *cb;
+ void *opaque;
+
+ /* Filled by multiwrite implementation */
+ int error;
+} BlockRequest;
+
+int bdrv_aio_multiwrite(BlockDriverState *bs, BlockRequest *reqs,
+ int num_reqs);
+
/* sg packet commands */
int bdrv_ioctl(BlockDriverState *bs, unsigned long int req, void *buf);
BlockDriverAIOCB *bdrv_aio_ioctl(BlockDriverState *bs,
int bdrv_get_translation_hint(BlockDriverState *bs);
int bdrv_is_removable(BlockDriverState *bs);
int bdrv_is_read_only(BlockDriverState *bs);
+int bdrv_set_read_only(BlockDriverState *bs, int read_only);
int bdrv_is_sg(BlockDriverState *bs);
+int bdrv_enable_write_cache(BlockDriverState *bs);
int bdrv_is_inserted(BlockDriverState *bs);
int bdrv_media_changed(BlockDriverState *bs);
int bdrv_is_locked(BlockDriverState *bs);
void bdrv_set_locked(BlockDriverState *bs, int locked);
-void bdrv_eject(BlockDriverState *bs, int eject_flag);
+int bdrv_eject(BlockDriverState *bs, int eject_flag);
void bdrv_set_change_cb(BlockDriverState *bs,
void (*change_cb)(void *opaque), void *opaque);
void bdrv_get_format(BlockDriverState *bs, char *buf, int buf_size);
const char *base_path,
const char *filename);
+int bdrv_save_vmstate(BlockDriverState *bs, const uint8_t *buf,
+ int64_t pos, int size);
+
+int bdrv_load_vmstate(BlockDriverState *bs, uint8_t *buf,
+ int64_t pos, int size);
+
+#define BDRV_SECTORS_PER_DIRTY_CHUNK 2048
+
+void bdrv_set_dirty_tracking(BlockDriverState *bs, int enable);
+int bdrv_get_dirty(BlockDriverState *bs, int64_t sector);
+void bdrv_reset_dirty(BlockDriverState *bs, int64_t cur_sector,
+ int nr_sectors);
#endif
projects / qemu.git / blobdiff