Annotation of qemu/block.h, revision 1.1.1.13

1.1       root        1: #ifndef BLOCK_H
                      2: #define BLOCK_H
                      3: 
1.1.1.2   root        4: #include "qemu-aio.h"
                      5: #include "qemu-common.h"
1.1.1.5   root        6: #include "qemu-option.h"
1.1.1.12  root        7: #include "qemu-coroutine.h"
1.1.1.6   root        8: #include "qobject.h"
1.1.1.2   root        9: 
1.1       root       10: /* block.c */
                     11: typedef struct BlockDriver BlockDriver;
                     12: 
                     13: typedef struct BlockDriverInfo {
                     14:     /* in bytes, 0 if irrelevant */
                     15:     int cluster_size;
                     16:     /* offset at which the VM state can be saved (0 if not possible) */
                     17:     int64_t vm_state_offset;
1.1.1.13! root       18:     bool is_dirty;
1.1       root       19: } BlockDriverInfo;
                     20: 
1.1.1.13! root       21: typedef struct BlockFragInfo {
        !            22:     uint64_t allocated_clusters;
        !            23:     uint64_t total_clusters;
        !            24:     uint64_t fragmented_clusters;
        !            25: } BlockFragInfo;
        !            26: 
1.1       root       27: typedef struct QEMUSnapshotInfo {
                     28:     char id_str[128]; /* unique snapshot id */
                     29:     /* the following fields are informative. They are not needed for
                     30:        the consistency of the snapshot */
1.1.1.13! root       31:     char name[256]; /* user chosen name */
        !            32:     uint64_t vm_state_size; /* VM state info size */
1.1       root       33:     uint32_t date_sec; /* UTC date of the snapshot */
                     34:     uint32_t date_nsec;
                     35:     uint64_t vm_clock_nsec; /* VM clock relative to boot */
                     36: } QEMUSnapshotInfo;
                     37: 
1.1.1.12  root       38: /* Callbacks for block device models */
                     39: typedef struct BlockDevOps {
                     40:     /*
                     41:      * Runs when virtual media changed (monitor commands eject, change)
                     42:      * Argument load is true on load and false on eject.
                     43:      * Beware: doesn't run when a host device's physical media
                     44:      * changes.  Sure would be useful if it did.
                     45:      * Device models with removable media must implement this callback.
                     46:      */
                     47:     void (*change_media_cb)(void *opaque, bool load);
                     48:     /*
                     49:      * Runs when an eject request is issued from the monitor, the tray
                     50:      * is closed, and the medium is locked.
                     51:      * Device models that do not implement is_medium_locked will not need
                     52:      * this callback.  Device models that can lock the medium or tray might
                     53:      * want to implement the callback and unlock the tray when "force" is
                     54:      * true, even if they do not support eject requests.
                     55:      */
                     56:     void (*eject_request_cb)(void *opaque, bool force);
                     57:     /*
                     58:      * Is the virtual tray open?
                     59:      * Device models implement this only when the device has a tray.
                     60:      */
                     61:     bool (*is_tray_open)(void *opaque);
                     62:     /*
                     63:      * Is the virtual medium locked into the device?
                     64:      * Device models implement this only when device has such a lock.
                     65:      */
                     66:     bool (*is_medium_locked)(void *opaque);
                     67:     /*
                     68:      * Runs when the size changed (e.g. monitor command block_resize)
                     69:      */
                     70:     void (*resize_cb)(void *opaque);
                     71: } BlockDevOps;
                     72: 
1.1       root       73: #define BDRV_O_RDWR        0x0002
                     74: #define BDRV_O_SNAPSHOT    0x0008 /* open the file read only and save writes in a snapshot */
1.1.1.2   root       75: #define BDRV_O_NOCACHE     0x0020 /* do not use the host page cache */
                     76: #define BDRV_O_CACHE_WB    0x0040 /* use write-back caching */
1.1.1.6   root       77: #define BDRV_O_NATIVE_AIO  0x0080 /* use native AIO instead of the thread pool */
1.1.1.8   root       78: #define BDRV_O_NO_BACKING  0x0100 /* don't open the backing file */
                     79: #define BDRV_O_NO_FLUSH    0x0200 /* disable flushing on this disk */
1.1.1.13! root       80: #define BDRV_O_COPY_ON_READ 0x0400 /* copy read backing sectors into image */
        !            81: #define BDRV_O_INCOMING    0x0800  /* consistency hint for incoming migration */
1.1.1.2   root       82: 
1.1.1.8   root       83: #define BDRV_O_CACHE_MASK  (BDRV_O_NOCACHE | BDRV_O_CACHE_WB | BDRV_O_NO_FLUSH)
1.1       root       84: 
1.1.1.6   root       85: #define BDRV_SECTOR_BITS   9
1.1.1.8   root       86: #define BDRV_SECTOR_SIZE   (1ULL << BDRV_SECTOR_BITS)
                     87: #define BDRV_SECTOR_MASK   ~(BDRV_SECTOR_SIZE - 1)
1.1.1.6   root       88: 
1.1.1.8   root       89: typedef enum {
                     90:     BLOCK_ERR_REPORT, BLOCK_ERR_IGNORE, BLOCK_ERR_STOP_ENOSPC,
                     91:     BLOCK_ERR_STOP_ANY
                     92: } BlockErrorAction;
                     93: 
                     94: typedef enum {
                     95:     BDRV_ACTION_REPORT, BDRV_ACTION_IGNORE, BDRV_ACTION_STOP
1.1.1.13! root       96: } BlockQMPEventAction;
1.1.1.8   root       97: 
1.1.1.12  root       98: void bdrv_iostatus_enable(BlockDriverState *bs);
                     99: void bdrv_iostatus_reset(BlockDriverState *bs);
                    100: void bdrv_iostatus_disable(BlockDriverState *bs);
                    101: bool bdrv_iostatus_is_enabled(const BlockDriverState *bs);
                    102: void bdrv_iostatus_set_err(BlockDriverState *bs, int error);
1.1.1.13! root      103: void bdrv_emit_qmp_error_event(const BlockDriverState *bdrv,
        !           104:                                BlockQMPEventAction action, int is_read);
1.1.1.6   root      105: void bdrv_info_print(Monitor *mon, const QObject *data);
                    106: void bdrv_info(Monitor *mon, QObject **ret_data);
                    107: void bdrv_stats_print(Monitor *mon, const QObject *data);
                    108: void bdrv_info_stats(Monitor *mon, QObject **ret_data);
1.1       root      109: 
1.1.1.13! root      110: /* disk I/O throttling */
        !           111: void bdrv_io_limits_enable(BlockDriverState *bs);
        !           112: void bdrv_io_limits_disable(BlockDriverState *bs);
        !           113: bool bdrv_io_limits_enabled(BlockDriverState *bs);
        !           114: 
1.1       root      115: void bdrv_init(void);
1.1.1.6   root      116: void bdrv_init_with_whitelist(void);
1.1.1.8   root      117: BlockDriver *bdrv_find_protocol(const char *filename);
1.1       root      118: BlockDriver *bdrv_find_format(const char *format_name);
1.1.1.6   root      119: BlockDriver *bdrv_find_whitelisted_format(const char *format_name);
1.1.1.5   root      120: int bdrv_create(BlockDriver *drv, const char* filename,
                    121:     QEMUOptionParameter *options);
1.1.1.8   root      122: int bdrv_create_file(const char* filename, QEMUOptionParameter *options);
1.1       root      123: BlockDriverState *bdrv_new(const char *device_name);
1.1.1.10  root      124: void bdrv_make_anon(BlockDriverState *bs);
1.1.1.13! root      125: void bdrv_append(BlockDriverState *bs_new, BlockDriverState *bs_top);
1.1       root      126: void bdrv_delete(BlockDriverState *bs);
1.1.1.12  root      127: int bdrv_parse_cache_flags(const char *mode, int *flags);
1.1       root      128: int bdrv_file_open(BlockDriverState **pbs, const char *filename, int flags);
1.1.1.8   root      129: int bdrv_open(BlockDriverState *bs, const char *filename, int flags,
                    130:               BlockDriver *drv);
1.1       root      131: void bdrv_close(BlockDriverState *bs);
1.1.1.12  root      132: int bdrv_attach_dev(BlockDriverState *bs, void *dev);
                    133: void bdrv_attach_dev_nofail(BlockDriverState *bs, void *dev);
                    134: void bdrv_detach_dev(BlockDriverState *bs, void *dev);
                    135: void *bdrv_get_attached_dev(BlockDriverState *bs);
                    136: void bdrv_set_dev_ops(BlockDriverState *bs, const BlockDevOps *ops,
                    137:                       void *opaque);
                    138: void bdrv_dev_eject_request(BlockDriverState *bs, bool force);
                    139: bool bdrv_dev_has_removable_media(BlockDriverState *bs);
                    140: bool bdrv_dev_is_tray_open(BlockDriverState *bs);
                    141: bool bdrv_dev_is_medium_locked(BlockDriverState *bs);
1.1       root      142: int bdrv_read(BlockDriverState *bs, int64_t sector_num,
                    143:               uint8_t *buf, int nb_sectors);
                    144: int bdrv_write(BlockDriverState *bs, int64_t sector_num,
                    145:                const uint8_t *buf, int nb_sectors);
                    146: int bdrv_pread(BlockDriverState *bs, int64_t offset,
                    147:                void *buf, int count);
                    148: int bdrv_pwrite(BlockDriverState *bs, int64_t offset,
                    149:                 const void *buf, int count);
1.1.1.7   root      150: int bdrv_pwrite_sync(BlockDriverState *bs, int64_t offset,
                    151:     const void *buf, int count);
1.1.1.12  root      152: int coroutine_fn bdrv_co_readv(BlockDriverState *bs, int64_t sector_num,
                    153:     int nb_sectors, QEMUIOVector *qiov);
1.1.1.13! root      154: int coroutine_fn bdrv_co_copy_on_readv(BlockDriverState *bs,
        !           155:     int64_t sector_num, int nb_sectors, QEMUIOVector *qiov);
1.1.1.12  root      156: int coroutine_fn bdrv_co_writev(BlockDriverState *bs, int64_t sector_num,
                    157:     int nb_sectors, QEMUIOVector *qiov);
1.1.1.13! root      158: /*
        !           159:  * Efficiently zero a region of the disk image.  Note that this is a regular
        !           160:  * I/O request like read or write and should have a reasonable size.  This
        !           161:  * function is not suitable for zeroing the entire image in a single request
        !           162:  * because it may allocate memory for the entire region.
        !           163:  */
        !           164: int coroutine_fn bdrv_co_write_zeroes(BlockDriverState *bs, int64_t sector_num,
        !           165:     int nb_sectors);
        !           166: int coroutine_fn bdrv_co_is_allocated(BlockDriverState *bs, int64_t sector_num,
        !           167:     int nb_sectors, int *pnum);
        !           168: BlockDriverState *bdrv_find_backing_image(BlockDriverState *bs,
        !           169:     const char *backing_file);
1.1       root      170: int bdrv_truncate(BlockDriverState *bs, int64_t offset);
                    171: int64_t bdrv_getlength(BlockDriverState *bs);
1.1.1.11  root      172: int64_t bdrv_get_allocated_file_size(BlockDriverState *bs);
1.1       root      173: void bdrv_get_geometry(BlockDriverState *bs, uint64_t *nb_sectors_ptr);
1.1.1.2   root      174: void bdrv_guess_geometry(BlockDriverState *bs, int *pcyls, int *pheads, int *psecs);
1.1       root      175: int bdrv_commit(BlockDriverState *bs);
1.1.1.13! root      176: int bdrv_commit_all(void);
1.1.1.8   root      177: int bdrv_change_backing_file(BlockDriverState *bs,
                    178:     const char *backing_file, const char *backing_fmt);
1.1.1.5   root      179: void bdrv_register(BlockDriver *bdrv);
                    180: 
1.1.1.8   root      181: 
                    182: typedef struct BdrvCheckResult {
                    183:     int corruptions;
                    184:     int leaks;
                    185:     int check_errors;
1.1.1.13! root      186:     BlockFragInfo bfi;
1.1.1.8   root      187: } BdrvCheckResult;
                    188: 
                    189: int bdrv_check(BlockDriverState *bs, BdrvCheckResult *res);
                    190: 
1.1       root      191: /* async block I/O */
1.1.1.6   root      192: typedef void BlockDriverDirtyHandler(BlockDriverState *bs, int64_t sector,
1.1.1.11  root      193:                                      int sector_num);
1.1.1.2   root      194: BlockDriverAIOCB *bdrv_aio_readv(BlockDriverState *bs, int64_t sector_num,
                    195:                                  QEMUIOVector *iov, int nb_sectors,
                    196:                                  BlockDriverCompletionFunc *cb, void *opaque);
                    197: BlockDriverAIOCB *bdrv_aio_writev(BlockDriverState *bs, int64_t sector_num,
                    198:                                   QEMUIOVector *iov, int nb_sectors,
                    199:                                   BlockDriverCompletionFunc *cb, void *opaque);
1.1.1.6   root      200: BlockDriverAIOCB *bdrv_aio_flush(BlockDriverState *bs,
1.1.1.11  root      201:                                  BlockDriverCompletionFunc *cb, void *opaque);
1.1.1.12  root      202: BlockDriverAIOCB *bdrv_aio_discard(BlockDriverState *bs,
                    203:                                    int64_t sector_num, int nb_sectors,
                    204:                                    BlockDriverCompletionFunc *cb, void *opaque);
1.1       root      205: void bdrv_aio_cancel(BlockDriverAIOCB *acb);
                    206: 
1.1.1.6   root      207: typedef struct BlockRequest {
                    208:     /* Fields to be filled by multiwrite caller */
                    209:     int64_t sector;
                    210:     int nb_sectors;
                    211:     QEMUIOVector *qiov;
                    212:     BlockDriverCompletionFunc *cb;
                    213:     void *opaque;
                    214: 
                    215:     /* Filled by multiwrite implementation */
                    216:     int error;
                    217: } BlockRequest;
                    218: 
                    219: int bdrv_aio_multiwrite(BlockDriverState *bs, BlockRequest *reqs,
                    220:     int num_reqs);
                    221: 
1.1.1.5   root      222: /* sg packet commands */
                    223: int bdrv_ioctl(BlockDriverState *bs, unsigned long int req, void *buf);
                    224: BlockDriverAIOCB *bdrv_aio_ioctl(BlockDriverState *bs,
                    225:         unsigned long int req, void *buf,
                    226:         BlockDriverCompletionFunc *cb, void *opaque);
                    227: 
1.1.1.12  root      228: /* Invalidate any cached metadata used by image formats */
                    229: void bdrv_invalidate_cache(BlockDriverState *bs);
                    230: void bdrv_invalidate_cache_all(void);
                    231: 
1.1.1.13! root      232: void bdrv_clear_incoming_migration_all(void);
        !           233: 
1.1       root      234: /* Ensure contents are flushed to disk.  */
1.1.1.9   root      235: int bdrv_flush(BlockDriverState *bs);
1.1.1.12  root      236: int coroutine_fn bdrv_co_flush(BlockDriverState *bs);
1.1.1.2   root      237: void bdrv_flush_all(void);
1.1.1.8   root      238: void bdrv_close_all(void);
1.1.1.13! root      239: void bdrv_drain_all(void);
1.1.1.2   root      240: 
1.1.1.9   root      241: int bdrv_discard(BlockDriverState *bs, int64_t sector_num, int nb_sectors);
1.1.1.12  root      242: int bdrv_co_discard(BlockDriverState *bs, int64_t sector_num, int nb_sectors);
1.1.1.8   root      243: int bdrv_has_zero_init(BlockDriverState *bs);
1.1.1.2   root      244: int bdrv_is_allocated(BlockDriverState *bs, int64_t sector_num, int nb_sectors,
1.1.1.11  root      245:                       int *pnum);
1.1       root      246: 
                    247: #define BIOS_ATA_TRANSLATION_AUTO   0
                    248: #define BIOS_ATA_TRANSLATION_NONE   1
                    249: #define BIOS_ATA_TRANSLATION_LBA    2
                    250: #define BIOS_ATA_TRANSLATION_LARGE  3
                    251: #define BIOS_ATA_TRANSLATION_RECHS  4
                    252: 
                    253: void bdrv_set_geometry_hint(BlockDriverState *bs,
                    254:                             int cyls, int heads, int secs);
                    255: void bdrv_set_translation_hint(BlockDriverState *bs, int translation);
                    256: void bdrv_get_geometry_hint(BlockDriverState *bs,
                    257:                             int *pcyls, int *pheads, int *psecs);
1.1.1.11  root      258: typedef enum FDriveType {
                    259:     FDRIVE_DRV_144  = 0x00,   /* 1.44 MB 3"5 drive      */
                    260:     FDRIVE_DRV_288  = 0x01,   /* 2.88 MB 3"5 drive      */
                    261:     FDRIVE_DRV_120  = 0x02,   /* 1.2  MB 5"25 drive     */
                    262:     FDRIVE_DRV_NONE = 0x03,   /* No drive connected     */
                    263: } FDriveType;
                    264: 
1.1.1.13! root      265: typedef enum FDriveRate {
        !           266:     FDRIVE_RATE_500K = 0x00,  /* 500 Kbps */
        !           267:     FDRIVE_RATE_300K = 0x01,  /* 300 Kbps */
        !           268:     FDRIVE_RATE_250K = 0x02,  /* 250 Kbps */
        !           269:     FDRIVE_RATE_1M   = 0x03,  /*   1 Mbps */
        !           270: } FDriveRate;
        !           271: 
1.1.1.11  root      272: void bdrv_get_floppy_geometry_hint(BlockDriverState *bs, int *nb_heads,
                    273:                                    int *max_track, int *last_sect,
1.1.1.13! root      274:                                    FDriveType drive_in, FDriveType *drive,
        !           275:                                    FDriveRate *rate);
1.1       root      276: int bdrv_get_translation_hint(BlockDriverState *bs);
1.1.1.8   root      277: void bdrv_set_on_error(BlockDriverState *bs, BlockErrorAction on_read_error,
                    278:                        BlockErrorAction on_write_error);
                    279: BlockErrorAction bdrv_get_on_error(BlockDriverState *bs, int is_read);
1.1       root      280: int bdrv_is_read_only(BlockDriverState *bs);
                    281: int bdrv_is_sg(BlockDriverState *bs);
1.1.1.6   root      282: int bdrv_enable_write_cache(BlockDriverState *bs);
1.1       root      283: int bdrv_is_inserted(BlockDriverState *bs);
                    284: int bdrv_media_changed(BlockDriverState *bs);
1.1.1.12  root      285: void bdrv_lock_medium(BlockDriverState *bs, bool locked);
1.1.1.13! root      286: void bdrv_eject(BlockDriverState *bs, bool eject_flag);
1.1       root      287: void bdrv_get_format(BlockDriverState *bs, char *buf, int buf_size);
                    288: BlockDriverState *bdrv_find(const char *name);
1.1.1.8   root      289: BlockDriverState *bdrv_next(BlockDriverState *bs);
1.1.1.3   root      290: void bdrv_iterate(void (*it)(void *opaque, BlockDriverState *bs),
                    291:                   void *opaque);
1.1       root      292: int bdrv_is_encrypted(BlockDriverState *bs);
1.1.1.3   root      293: int bdrv_key_required(BlockDriverState *bs);
1.1       root      294: int bdrv_set_key(BlockDriverState *bs, const char *key);
1.1.1.3   root      295: int bdrv_query_missing_keys(void);
1.1       root      296: void bdrv_iterate_format(void (*it)(void *opaque, const char *name),
                    297:                          void *opaque);
                    298: const char *bdrv_get_device_name(BlockDriverState *bs);
                    299: int bdrv_write_compressed(BlockDriverState *bs, int64_t sector_num,
                    300:                           const uint8_t *buf, int nb_sectors);
                    301: int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi);
                    302: 
1.1.1.3   root      303: const char *bdrv_get_encrypted_filename(BlockDriverState *bs);
1.1       root      304: void bdrv_get_backing_filename(BlockDriverState *bs,
                    305:                                char *filename, int filename_size);
1.1.1.13! root      306: void bdrv_get_full_backing_filename(BlockDriverState *bs,
        !           307:                                     char *dest, size_t sz);
1.1.1.8   root      308: int bdrv_can_snapshot(BlockDriverState *bs);
                    309: int bdrv_is_snapshot(BlockDriverState *bs);
                    310: BlockDriverState *bdrv_snapshots(void);
1.1       root      311: int bdrv_snapshot_create(BlockDriverState *bs,
                    312:                          QEMUSnapshotInfo *sn_info);
                    313: int bdrv_snapshot_goto(BlockDriverState *bs,
                    314:                        const char *snapshot_id);
                    315: int bdrv_snapshot_delete(BlockDriverState *bs, const char *snapshot_id);
                    316: int bdrv_snapshot_list(BlockDriverState *bs,
                    317:                        QEMUSnapshotInfo **psn_info);
1.1.1.9   root      318: int bdrv_snapshot_load_tmp(BlockDriverState *bs,
                    319:                            const char *snapshot_name);
1.1       root      320: char *bdrv_snapshot_dump(char *buf, int buf_size, QEMUSnapshotInfo *sn);
                    321: 
                    322: char *get_human_readable_size(char *buf, int buf_size, int64_t size);
                    323: int path_is_absolute(const char *path);
                    324: void path_combine(char *dest, int dest_size,
                    325:                   const char *base_path,
                    326:                   const char *filename);
                    327: 
1.1.1.5   root      328: int bdrv_save_vmstate(BlockDriverState *bs, const uint8_t *buf,
                    329:                       int64_t pos, int size);
1.1.1.4   root      330: 
1.1.1.5   root      331: int bdrv_load_vmstate(BlockDriverState *bs, uint8_t *buf,
                    332:                       int64_t pos, int size);
1.1.1.4   root      333: 
1.1.1.9   root      334: int bdrv_img_create(const char *filename, const char *fmt,
                    335:                     const char *base_filename, const char *base_fmt,
                    336:                     char *options, uint64_t img_size, int flags);
                    337: 
1.1.1.12  root      338: void bdrv_set_buffer_alignment(BlockDriverState *bs, int align);
                    339: void *qemu_blockalign(BlockDriverState *bs, size_t size);
                    340: 
1.1.1.6   root      341: #define BDRV_SECTORS_PER_DIRTY_CHUNK 2048
                    342: 
                    343: void bdrv_set_dirty_tracking(BlockDriverState *bs, int enable);
                    344: int bdrv_get_dirty(BlockDriverState *bs, int64_t sector);
                    345: void bdrv_reset_dirty(BlockDriverState *bs, int64_t cur_sector,
                    346:                       int nr_sectors);
1.1.1.8   root      347: int64_t bdrv_get_dirty_count(BlockDriverState *bs);
                    348: 
1.1.1.13! root      349: void bdrv_enable_copy_on_read(BlockDriverState *bs);
        !           350: void bdrv_disable_copy_on_read(BlockDriverState *bs);
        !           351: 
1.1.1.9   root      352: void bdrv_set_in_use(BlockDriverState *bs, int in_use);
                    353: int bdrv_in_use(BlockDriverState *bs);
1.1.1.8   root      354: 
1.1.1.12  root      355: enum BlockAcctType {
                    356:     BDRV_ACCT_READ,
                    357:     BDRV_ACCT_WRITE,
                    358:     BDRV_ACCT_FLUSH,
                    359:     BDRV_MAX_IOTYPE,
                    360: };
                    361: 
                    362: typedef struct BlockAcctCookie {
                    363:     int64_t bytes;
                    364:     int64_t start_time_ns;
                    365:     enum BlockAcctType type;
                    366: } BlockAcctCookie;
                    367: 
                    368: void bdrv_acct_start(BlockDriverState *bs, BlockAcctCookie *cookie,
                    369:         int64_t bytes, enum BlockAcctType type);
                    370: void bdrv_acct_done(BlockDriverState *bs, BlockAcctCookie *cookie);
                    371: 
1.1.1.8   root      372: typedef enum {
                    373:     BLKDBG_L1_UPDATE,
                    374: 
                    375:     BLKDBG_L1_GROW_ALLOC_TABLE,
                    376:     BLKDBG_L1_GROW_WRITE_TABLE,
                    377:     BLKDBG_L1_GROW_ACTIVATE_TABLE,
                    378: 
                    379:     BLKDBG_L2_LOAD,
                    380:     BLKDBG_L2_UPDATE,
                    381:     BLKDBG_L2_UPDATE_COMPRESSED,
                    382:     BLKDBG_L2_ALLOC_COW_READ,
                    383:     BLKDBG_L2_ALLOC_WRITE,
                    384: 
                    385:     BLKDBG_READ,
                    386:     BLKDBG_READ_AIO,
                    387:     BLKDBG_READ_BACKING,
                    388:     BLKDBG_READ_BACKING_AIO,
                    389:     BLKDBG_READ_COMPRESSED,
                    390: 
                    391:     BLKDBG_WRITE_AIO,
                    392:     BLKDBG_WRITE_COMPRESSED,
                    393: 
                    394:     BLKDBG_VMSTATE_LOAD,
                    395:     BLKDBG_VMSTATE_SAVE,
                    396: 
                    397:     BLKDBG_COW_READ,
                    398:     BLKDBG_COW_WRITE,
                    399: 
                    400:     BLKDBG_REFTABLE_LOAD,
                    401:     BLKDBG_REFTABLE_GROW,
                    402: 
                    403:     BLKDBG_REFBLOCK_LOAD,
                    404:     BLKDBG_REFBLOCK_UPDATE,
                    405:     BLKDBG_REFBLOCK_UPDATE_PART,
                    406:     BLKDBG_REFBLOCK_ALLOC,
                    407:     BLKDBG_REFBLOCK_ALLOC_HOOKUP,
                    408:     BLKDBG_REFBLOCK_ALLOC_WRITE,
                    409:     BLKDBG_REFBLOCK_ALLOC_WRITE_BLOCKS,
                    410:     BLKDBG_REFBLOCK_ALLOC_WRITE_TABLE,
                    411:     BLKDBG_REFBLOCK_ALLOC_SWITCH_TABLE,
                    412: 
                    413:     BLKDBG_CLUSTER_ALLOC,
                    414:     BLKDBG_CLUSTER_ALLOC_BYTES,
                    415:     BLKDBG_CLUSTER_FREE,
                    416: 
                    417:     BLKDBG_EVENT_MAX,
                    418: } BlkDebugEvent;
                    419: 
                    420: #define BLKDBG_EVENT(bs, evt) bdrv_debug_event(bs, evt)
                    421: void bdrv_debug_event(BlockDriverState *bs, BlkDebugEvent event);
                    422: 
1.1.1.12  root      423: 
                    424: /* Convenience for block device models */
                    425: 
                    426: typedef struct BlockConf {
                    427:     BlockDriverState *bs;
                    428:     uint16_t physical_block_size;
                    429:     uint16_t logical_block_size;
                    430:     uint16_t min_io_size;
                    431:     uint32_t opt_io_size;
                    432:     int32_t bootindex;
                    433:     uint32_t discard_granularity;
                    434: } BlockConf;
                    435: 
                    436: static inline unsigned int get_physical_block_exp(BlockConf *conf)
                    437: {
                    438:     unsigned int exp = 0, size;
                    439: 
                    440:     for (size = conf->physical_block_size;
                    441:         size > conf->logical_block_size;
                    442:         size >>= 1) {
                    443:         exp++;
                    444:     }
                    445: 
                    446:     return exp;
                    447: }
                    448: 
                    449: #define DEFINE_BLOCK_PROPERTIES(_state, _conf)                          \
                    450:     DEFINE_PROP_DRIVE("drive", _state, _conf.bs),                       \
1.1.1.13! root      451:     DEFINE_PROP_BLOCKSIZE("logical_block_size", _state,                 \
        !           452:                           _conf.logical_block_size, 512),               \
        !           453:     DEFINE_PROP_BLOCKSIZE("physical_block_size", _state,                \
        !           454:                           _conf.physical_block_size, 512),              \
1.1.1.12  root      455:     DEFINE_PROP_UINT16("min_io_size", _state, _conf.min_io_size, 0),  \
                    456:     DEFINE_PROP_UINT32("opt_io_size", _state, _conf.opt_io_size, 0),    \
                    457:     DEFINE_PROP_INT32("bootindex", _state, _conf.bootindex, -1),        \
                    458:     DEFINE_PROP_UINT32("discard_granularity", _state, \
                    459:                        _conf.discard_granularity, 0)
                    460: 
1.1       root      461: #endif
1.1.1.12  root      462: 

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