X-Git-Url: https://repo.jachan.dev/qemu.git/blobdiff_plain/178e08a58f40dd5aef2ce774fe0850f5d0e56918..8f16753fd6b584f34d47e102d290dbf4d5c94d46:/block.h diff --git a/block.h b/block.h index f1919b668e..52e9cad55c 100644 --- a/block.h +++ b/block.h @@ -3,24 +3,12 @@ #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; @@ -39,40 +27,54 @@ 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 | BDRV_O_NO_FLUSH) + +#define BDRV_SECTOR_BITS 9 +#define BDRV_SECTOR_SIZE (1ULL << BDRV_SECTOR_BITS) +#define BDRV_SECTOR_MASK ~(BDRV_SECTOR_SIZE - 1) + +typedef enum { + BLOCK_ERR_REPORT, BLOCK_ERR_IGNORE, BLOCK_ERR_STOP_ENOSPC, + BLOCK_ERR_STOP_ANY +} BlockErrorAction; -#define BDRV_O_CACHE_MASK (BDRV_O_NOCACHE | BDRV_O_CACHE_WB | BDRV_O_CACHE_DEF) +typedef enum { + BDRV_ACTION_REPORT, BDRV_ACTION_IGNORE, BDRV_ACTION_STOP +} BlockMonEventAction; -void bdrv_info(Monitor *mon); -void bdrv_info_stats(Monitor *mon); +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); -int bdrv_create2(BlockDriver *drv, - const char *filename, int64_t size_in_sectors, - const char *backing_file, const char *backing_format, - 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_make_anon(BlockDriverState *bs); 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, @@ -81,30 +83,59 @@ int bdrv_pread(BlockDriverState *bs, int64_t offset, 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); +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, @@ -112,9 +143,12 @@ BlockDriverAIOCB *bdrv_aio_ioctl(BlockDriverState *bs, BlockDriverCompletionFunc *cb, void *opaque); /* Ensure contents are flushed to disk. */ -void bdrv_flush(BlockDriverState *bs); +int bdrv_flush(BlockDriverState *bs); void bdrv_flush_all(void); +void bdrv_close_all(void); +int bdrv_discard(BlockDriverState *bs, int64_t sector_num, int nb_sectors); +int bdrv_has_zero_init(BlockDriverState *bs); int bdrv_is_allocated(BlockDriverState *bs, int64_t sector_num, int nb_sectors, int *pnum); @@ -133,20 +167,37 @@ void bdrv_set_type_hint(BlockDriverState *bs, int type); void bdrv_set_translation_hint(BlockDriverState *bs, int translation); void bdrv_get_geometry_hint(BlockDriverState *bs, int *pcyls, int *pheads, int *psecs); +typedef enum FDriveType { + FDRIVE_DRV_144 = 0x00, /* 1.44 MB 3"5 drive */ + FDRIVE_DRV_288 = 0x01, /* 2.88 MB 3"5 drive */ + FDRIVE_DRV_120 = 0x02, /* 1.2 MB 5"25 drive */ + FDRIVE_DRV_NONE = 0x03, /* No drive connected */ +} FDriveType; + +void bdrv_get_floppy_geometry_hint(BlockDriverState *bs, int *nb_heads, + int *max_track, int *last_sect, + FDriveType drive_in, FDriveType *drive); 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 (*change_cb)(void *opaque, int reason), + 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); @@ -163,6 +214,9 @@ int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi); 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); +int bdrv_is_snapshot(BlockDriverState *bs); +BlockDriverState *bdrv_snapshots(void); int bdrv_snapshot_create(BlockDriverState *bs, QEMUSnapshotInfo *sn_info); int bdrv_snapshot_goto(BlockDriverState *bs, @@ -170,6 +224,8 @@ int bdrv_snapshot_goto(BlockDriverState *bs, int bdrv_snapshot_delete(BlockDriverState *bs, const char *snapshot_id); int bdrv_snapshot_list(BlockDriverState *bs, QEMUSnapshotInfo **psn_info); +int bdrv_snapshot_load_tmp(BlockDriverState *bs, + const char *snapshot_name); char *bdrv_snapshot_dump(char *buf, int buf_size, QEMUSnapshotInfo *sn); char *get_human_readable_size(char *buf, int buf_size, int64_t size); @@ -178,9 +234,76 @@ void path_combine(char *dest, int dest_size, const char *base_path, const char *filename); -int bdrv_put_buffer(BlockDriverState *bs, const uint8_t *buf, - int64_t pos, int size); +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); + +int bdrv_img_create(const char *filename, const char *fmt, + const char *base_filename, const char *base_fmt, + char *options, uint64_t img_size, int flags); + +#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); + +void bdrv_set_in_use(BlockDriverState *bs, int in_use); +int bdrv_in_use(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; -int bdrv_get_buffer(BlockDriverState *bs, uint8_t *buf, int64_t pos, int size); +#define BLKDBG_EVENT(bs, evt) bdrv_debug_event(bs, evt) +void bdrv_debug_event(BlockDriverState *bs, BlkDebugEvent event); #endif