#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;
/* offset at which the VM state can be saved (0 if not possible) */
int64_t vm_state_offset;
- int64_t highest_alloc; /* highest allocated block offset (in bytes) */
- int64_t num_free_bytes; /* below highest_alloc */
} BlockDriverInfo;
typedef struct QEMUSnapshotInfo {
uint64_t vm_clock_nsec; /* VM clock relative to boot */
} QEMUSnapshotInfo;
-#define BDRV_O_RDONLY 0x0000
#define BDRV_O_RDWR 0x0002
-#define BDRV_O_ACCESS 0x0003
-#define BDRV_O_CREAT 0x0004 /* create an empty file */
#define BDRV_O_SNAPSHOT 0x0008 /* open the file read only and save writes in a snapshot */
-#define BDRV_O_FILE 0x0010 /* open as a raw file (do not try to
- use a disk image format on top of
- it (default for
- 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_NO_BACKING 0x0100 /* don't open the backing file */
+#define BDRV_O_NO_FLUSH 0x0200 /* disable flushing on this disk */
+
+#define BDRV_O_CACHE_MASK (BDRV_O_NOCACHE | BDRV_O_CACHE_WB)
+
+#define BDRV_SECTOR_BITS 9
+#define BDRV_SECTOR_SIZE (1ULL << BDRV_SECTOR_BITS)
+#define BDRV_SECTOR_MASK ~(BDRV_SECTOR_SIZE - 1)
-#define BDRV_O_CACHE_MASK (BDRV_O_NOCACHE | BDRV_O_CACHE_WB | BDRV_O_CACHE_DEF)
+typedef enum {
+ BLOCK_ERR_REPORT, BLOCK_ERR_IGNORE, BLOCK_ERR_STOP_ENOSPC,
+ BLOCK_ERR_STOP_ANY
+} BlockErrorAction;
-void bdrv_info(void);
-void bdrv_info_stats(void);
+typedef enum {
+ BDRV_ACTION_REPORT, BDRV_ACTION_IGNORE, BDRV_ACTION_STOP
+} BlockMonEventAction;
+
+void bdrv_mon_event(const BlockDriverState *bdrv,
+ BlockMonEventAction action, int is_read);
+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_protocol(const char *filename);
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_create_file(const char* filename, QEMUOptionParameter *options);
BlockDriverState *bdrv_new(const char *device_name);
void bdrv_delete(BlockDriverState *bs);
int bdrv_file_open(BlockDriverState **pbs, const char *filename, int flags);
-int bdrv_open(BlockDriverState *bs, const char *filename, int flags);
-int bdrv_open2(BlockDriverState *bs, const char *filename, int flags,
- BlockDriver *drv);
+int bdrv_open(BlockDriverState *bs, const char *filename, int flags,
+ BlockDriver *drv);
void bdrv_close(BlockDriverState *bs);
+int bdrv_attach(BlockDriverState *bs, DeviceState *qdev);
+void bdrv_detach(BlockDriverState *bs, DeviceState *qdev);
+DeviceState *bdrv_get_attached(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 *buf, int count);
int bdrv_pwrite(BlockDriverState *bs, int64_t offset,
const void *buf, int count);
+int bdrv_pwrite_sync(BlockDriverState *bs, int64_t offset,
+ const void *buf, int count);
+int bdrv_write_sync(BlockDriverState *bs, int64_t sector_num,
+ const uint8_t *buf, int nb_sectors);
int bdrv_truncate(BlockDriverState *bs, int64_t offset);
int64_t bdrv_getlength(BlockDriverState *bs);
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_commit_all(void);
+int bdrv_change_backing_file(BlockDriverState *bs,
+ const char *backing_file, const char *backing_fmt);
+void bdrv_register(BlockDriver *bdrv);
+
+
+typedef struct BdrvCheckResult {
+ int corruptions;
+ int leaks;
+ int check_errors;
+} BdrvCheckResult;
+
+int bdrv_check(BlockDriverState *bs, BdrvCheckResult *res);
+
/* 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);
-int qemu_key_check(BlockDriverState *bs, const char *name);
+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,
+ unsigned long int req, void *buf,
+ BlockDriverCompletionFunc *cb, void *opaque);
/* Ensure contents are flushed to disk. */
void bdrv_flush(BlockDriverState *bs);
void bdrv_flush_all(void);
+void bdrv_close_all(void);
+int bdrv_has_zero_init(BlockDriverState *bs);
int bdrv_is_allocated(BlockDriverState *bs, int64_t sector_num, int nb_sectors,
int *pnum);
int *pcyls, int *pheads, int *psecs);
int bdrv_get_type_hint(BlockDriverState *bs);
int bdrv_get_translation_hint(BlockDriverState *bs);
+void bdrv_set_on_error(BlockDriverState *bs, BlockErrorAction on_read_error,
+ BlockErrorAction on_write_error);
+BlockErrorAction bdrv_get_on_error(BlockDriverState *bs, int is_read);
+void bdrv_set_removable(BlockDriverState *bs, int removable);
int bdrv_is_removable(BlockDriverState *bs);
int bdrv_is_read_only(BlockDriverState *bs);
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);
BlockDriverState *bdrv_find(const char *name);
+BlockDriverState *bdrv_next(BlockDriverState *bs);
void bdrv_iterate(void (*it)(void *opaque, BlockDriverState *bs),
void *opaque);
int bdrv_is_encrypted(BlockDriverState *bs);
+int bdrv_key_required(BlockDriverState *bs);
int bdrv_set_key(BlockDriverState *bs, const char *key);
+int bdrv_query_missing_keys(void);
void bdrv_iterate_format(void (*it)(void *opaque, const char *name),
void *opaque);
const char *bdrv_get_device_name(BlockDriverState *bs);
const char *bdrv_get_encrypted_filename(BlockDriverState *bs);
void bdrv_get_backing_filename(BlockDriverState *bs,
char *filename, int filename_size);
+int bdrv_can_snapshot(BlockDriverState *bs);
+BlockDriverState *bdrv_snapshots(void);
int bdrv_snapshot_create(BlockDriverState *bs,
QEMUSnapshotInfo *sn_info);
int bdrv_snapshot_goto(BlockDriverState *bs,
int bdrv_snapshot_list(BlockDriverState *bs,
QEMUSnapshotInfo **psn_info);
char *bdrv_snapshot_dump(char *buf, int buf_size, QEMUSnapshotInfo *sn);
-int bdrv_ioctl(BlockDriverState *bs, unsigned long int req, void *buf);
char *get_human_readable_size(char *buf, int buf_size, int64_t size);
int path_is_absolute(const char *path);
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);
+int64_t bdrv_get_dirty_count(BlockDriverState *bs);
+
+
+typedef enum {
+ BLKDBG_L1_UPDATE,
+
+ BLKDBG_L1_GROW_ALLOC_TABLE,
+ BLKDBG_L1_GROW_WRITE_TABLE,
+ BLKDBG_L1_GROW_ACTIVATE_TABLE,
+
+ BLKDBG_L2_LOAD,
+ BLKDBG_L2_UPDATE,
+ BLKDBG_L2_UPDATE_COMPRESSED,
+ BLKDBG_L2_ALLOC_COW_READ,
+ BLKDBG_L2_ALLOC_WRITE,
+
+ BLKDBG_READ,
+ BLKDBG_READ_AIO,
+ BLKDBG_READ_BACKING,
+ BLKDBG_READ_BACKING_AIO,
+ BLKDBG_READ_COMPRESSED,
+
+ BLKDBG_WRITE_AIO,
+ BLKDBG_WRITE_COMPRESSED,
+
+ BLKDBG_VMSTATE_LOAD,
+ BLKDBG_VMSTATE_SAVE,
+
+ BLKDBG_COW_READ,
+ BLKDBG_COW_WRITE,
+
+ BLKDBG_REFTABLE_LOAD,
+ BLKDBG_REFTABLE_GROW,
+
+ BLKDBG_REFBLOCK_LOAD,
+ BLKDBG_REFBLOCK_UPDATE,
+ BLKDBG_REFBLOCK_UPDATE_PART,
+ BLKDBG_REFBLOCK_ALLOC,
+ BLKDBG_REFBLOCK_ALLOC_HOOKUP,
+ BLKDBG_REFBLOCK_ALLOC_WRITE,
+ BLKDBG_REFBLOCK_ALLOC_WRITE_BLOCKS,
+ BLKDBG_REFBLOCK_ALLOC_WRITE_TABLE,
+ BLKDBG_REFBLOCK_ALLOC_SWITCH_TABLE,
+
+ BLKDBG_CLUSTER_ALLOC,
+ BLKDBG_CLUSTER_ALLOC_BYTES,
+ BLKDBG_CLUSTER_FREE,
+
+ BLKDBG_EVENT_MAX,
+} BlkDebugEvent;
+
+#define BLKDBG_EVENT(bs, evt) bdrv_debug_event(bs, evt)
+void bdrv_debug_event(BlockDriverState *bs, BlkDebugEvent event);
+
#endif
projects / qemu.git / blobdiff