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Commit | Line | Data |
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faf07963 PB |
1 | #ifndef BLOCK_H |
2 | #define BLOCK_H | |
3 | ||
a76bab49 | 4 | #include "qemu-aio.h" |
3b69e4b9 | 5 | #include "qemu-common.h" |
0e7e1989 | 6 | #include "qemu-option.h" |
da1fa91d | 7 | #include "qemu-coroutine.h" |
d15e5465 | 8 | #include "qobject.h" |
a76bab49 | 9 | |
faf07963 | 10 | /* block.c */ |
faf07963 PB |
11 | typedef struct BlockDriver BlockDriver; |
12 | ||
faf07963 PB |
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; | |
18 | } BlockDriverInfo; | |
19 | ||
20 | typedef struct QEMUSnapshotInfo { | |
21 | char id_str[128]; /* unique snapshot id */ | |
22 | /* the following fields are informative. They are not needed for | |
23 | the consistency of the snapshot */ | |
24 | char name[256]; /* user choosen name */ | |
25 | uint32_t vm_state_size; /* VM state info size */ | |
26 | uint32_t date_sec; /* UTC date of the snapshot */ | |
27 | uint32_t date_nsec; | |
28 | uint64_t vm_clock_nsec; /* VM clock relative to boot */ | |
29 | } QEMUSnapshotInfo; | |
30 | ||
145feb17 | 31 | /* Callbacks for block device models */ |
0e49de52 | 32 | typedef struct BlockDevOps { |
145feb17 MA |
33 | /* |
34 | * Runs when virtual media changed (monitor commands eject, change) | |
7d4b4ba5 | 35 | * Argument load is true on load and false on eject. |
145feb17 MA |
36 | * Beware: doesn't run when a host device's physical media |
37 | * changes. Sure would be useful if it did. | |
2c6942fa | 38 | * Device models with removable media must implement this callback. |
145feb17 | 39 | */ |
7d4b4ba5 | 40 | void (*change_media_cb)(void *opaque, bool load); |
025ccaa7 PB |
41 | /* |
42 | * Runs when an eject request is issued from the monitor, the tray | |
43 | * is closed, and the medium is locked. | |
44 | * Device models that do not implement is_medium_locked will not need | |
45 | * this callback. Device models that can lock the medium or tray might | |
46 | * want to implement the callback and unlock the tray when "force" is | |
47 | * true, even if they do not support eject requests. | |
48 | */ | |
49 | void (*eject_request_cb)(void *opaque, bool force); | |
e4def80b MA |
50 | /* |
51 | * Is the virtual tray open? | |
52 | * Device models implement this only when the device has a tray. | |
53 | */ | |
54 | bool (*is_tray_open)(void *opaque); | |
f107639a MA |
55 | /* |
56 | * Is the virtual medium locked into the device? | |
57 | * Device models implement this only when device has such a lock. | |
58 | */ | |
59 | bool (*is_medium_locked)(void *opaque); | |
145feb17 MA |
60 | /* |
61 | * Runs when the size changed (e.g. monitor command block_resize) | |
62 | */ | |
63 | void (*resize_cb)(void *opaque); | |
0e49de52 MA |
64 | } BlockDevOps; |
65 | ||
faf07963 | 66 | #define BDRV_O_RDWR 0x0002 |
faf07963 | 67 | #define BDRV_O_SNAPSHOT 0x0008 /* open the file read only and save writes in a snapshot */ |
9f7965c7 AL |
68 | #define BDRV_O_NOCACHE 0x0020 /* do not use the host page cache */ |
69 | #define BDRV_O_CACHE_WB 0x0040 /* use write-back caching */ | |
5c6c3a6c | 70 | #define BDRV_O_NATIVE_AIO 0x0080 /* use native AIO instead of the thread pool */ |
b783e409 | 71 | #define BDRV_O_NO_BACKING 0x0100 /* don't open the backing file */ |
016f5cf6 | 72 | #define BDRV_O_NO_FLUSH 0x0200 /* disable flushing on this disk */ |
9f7965c7 | 73 | |
ceb25e5c | 74 | #define BDRV_O_CACHE_MASK (BDRV_O_NOCACHE | BDRV_O_CACHE_WB | BDRV_O_NO_FLUSH) |
faf07963 | 75 | |
6ea44308 | 76 | #define BDRV_SECTOR_BITS 9 |
c63782cb | 77 | #define BDRV_SECTOR_SIZE (1ULL << BDRV_SECTOR_BITS) |
3abbc4d9 | 78 | #define BDRV_SECTOR_MASK ~(BDRV_SECTOR_SIZE - 1) |
6ea44308 | 79 | |
abd7f68d MA |
80 | typedef enum { |
81 | BLOCK_ERR_REPORT, BLOCK_ERR_IGNORE, BLOCK_ERR_STOP_ENOSPC, | |
82 | BLOCK_ERR_STOP_ANY | |
83 | } BlockErrorAction; | |
84 | ||
2582bfed LC |
85 | typedef enum { |
86 | BDRV_ACTION_REPORT, BDRV_ACTION_IGNORE, BDRV_ACTION_STOP | |
87 | } BlockMonEventAction; | |
88 | ||
28a7282a LC |
89 | void bdrv_iostatus_enable(BlockDriverState *bs); |
90 | void bdrv_iostatus_reset(BlockDriverState *bs); | |
91 | void bdrv_iostatus_disable(BlockDriverState *bs); | |
92 | bool bdrv_iostatus_is_enabled(const BlockDriverState *bs); | |
93 | void bdrv_iostatus_set_err(BlockDriverState *bs, int error); | |
2582bfed LC |
94 | void bdrv_mon_event(const BlockDriverState *bdrv, |
95 | BlockMonEventAction action, int is_read); | |
d15e5465 LC |
96 | void bdrv_info_print(Monitor *mon, const QObject *data); |
97 | void bdrv_info(Monitor *mon, QObject **ret_data); | |
218a536a LC |
98 | void bdrv_stats_print(Monitor *mon, const QObject *data); |
99 | void bdrv_info_stats(Monitor *mon, QObject **ret_data); | |
faf07963 | 100 | |
0563e191 ZYW |
101 | /* disk I/O throttling */ |
102 | void bdrv_io_limits_enable(BlockDriverState *bs); | |
98f90dba | 103 | void bdrv_io_limits_disable(BlockDriverState *bs); |
0563e191 ZYW |
104 | bool bdrv_io_limits_enabled(BlockDriverState *bs); |
105 | ||
faf07963 | 106 | void bdrv_init(void); |
eb852011 | 107 | void bdrv_init_with_whitelist(void); |
b50cbabc | 108 | BlockDriver *bdrv_find_protocol(const char *filename); |
faf07963 | 109 | BlockDriver *bdrv_find_format(const char *format_name); |
eb852011 | 110 | BlockDriver *bdrv_find_whitelisted_format(const char *format_name); |
0e7e1989 KW |
111 | int bdrv_create(BlockDriver *drv, const char* filename, |
112 | QEMUOptionParameter *options); | |
84a12e66 | 113 | int bdrv_create_file(const char* filename, QEMUOptionParameter *options); |
faf07963 | 114 | BlockDriverState *bdrv_new(const char *device_name); |
d22b2f41 | 115 | void bdrv_make_anon(BlockDriverState *bs); |
faf07963 | 116 | void bdrv_delete(BlockDriverState *bs); |
c3993cdc | 117 | int bdrv_parse_cache_flags(const char *mode, int *flags); |
faf07963 | 118 | int bdrv_file_open(BlockDriverState **pbs, const char *filename, int flags); |
d6e9098e KW |
119 | int bdrv_open(BlockDriverState *bs, const char *filename, int flags, |
120 | BlockDriver *drv); | |
faf07963 | 121 | void bdrv_close(BlockDriverState *bs); |
fa879d62 MA |
122 | int bdrv_attach_dev(BlockDriverState *bs, void *dev); |
123 | void bdrv_attach_dev_nofail(BlockDriverState *bs, void *dev); | |
124 | void bdrv_detach_dev(BlockDriverState *bs, void *dev); | |
125 | void *bdrv_get_attached_dev(BlockDriverState *bs); | |
0e49de52 MA |
126 | void bdrv_set_dev_ops(BlockDriverState *bs, const BlockDevOps *ops, |
127 | void *opaque); | |
025ccaa7 | 128 | void bdrv_dev_eject_request(BlockDriverState *bs, bool force); |
2c6942fa | 129 | bool bdrv_dev_has_removable_media(BlockDriverState *bs); |
e4def80b | 130 | bool bdrv_dev_is_tray_open(BlockDriverState *bs); |
f107639a | 131 | bool bdrv_dev_is_medium_locked(BlockDriverState *bs); |
faf07963 PB |
132 | int bdrv_read(BlockDriverState *bs, int64_t sector_num, |
133 | uint8_t *buf, int nb_sectors); | |
134 | int bdrv_write(BlockDriverState *bs, int64_t sector_num, | |
135 | const uint8_t *buf, int nb_sectors); | |
136 | int bdrv_pread(BlockDriverState *bs, int64_t offset, | |
137 | void *buf, int count); | |
138 | int bdrv_pwrite(BlockDriverState *bs, int64_t offset, | |
139 | const void *buf, int count); | |
f08145fe KW |
140 | int bdrv_pwrite_sync(BlockDriverState *bs, int64_t offset, |
141 | const void *buf, int count); | |
da1fa91d KW |
142 | int coroutine_fn bdrv_co_readv(BlockDriverState *bs, int64_t sector_num, |
143 | int nb_sectors, QEMUIOVector *qiov); | |
144 | int coroutine_fn bdrv_co_writev(BlockDriverState *bs, int64_t sector_num, | |
145 | int nb_sectors, QEMUIOVector *qiov); | |
faf07963 PB |
146 | int bdrv_truncate(BlockDriverState *bs, int64_t offset); |
147 | int64_t bdrv_getlength(BlockDriverState *bs); | |
4a1d5e1f | 148 | int64_t bdrv_get_allocated_file_size(BlockDriverState *bs); |
96b8f136 | 149 | void bdrv_get_geometry(BlockDriverState *bs, uint64_t *nb_sectors_ptr); |
f3d54fc4 | 150 | void bdrv_guess_geometry(BlockDriverState *bs, int *pcyls, int *pheads, int *psecs); |
faf07963 | 151 | int bdrv_commit(BlockDriverState *bs); |
6ab4b5ab | 152 | void bdrv_commit_all(void); |
756e6736 KW |
153 | int bdrv_change_backing_file(BlockDriverState *bs, |
154 | const char *backing_file, const char *backing_fmt); | |
5efa9d5a AL |
155 | void bdrv_register(BlockDriver *bdrv); |
156 | ||
e076f338 KW |
157 | |
158 | typedef struct BdrvCheckResult { | |
159 | int corruptions; | |
160 | int leaks; | |
161 | int check_errors; | |
162 | } BdrvCheckResult; | |
163 | ||
164 | int bdrv_check(BlockDriverState *bs, BdrvCheckResult *res); | |
165 | ||
faf07963 PB |
166 | /* async block I/O */ |
167 | typedef struct BlockDriverAIOCB BlockDriverAIOCB; | |
168 | typedef void BlockDriverCompletionFunc(void *opaque, int ret); | |
7cd1e32a | 169 | typedef void BlockDriverDirtyHandler(BlockDriverState *bs, int64_t sector, |
39aa9a12 | 170 | int sector_num); |
3b69e4b9 AL |
171 | BlockDriverAIOCB *bdrv_aio_readv(BlockDriverState *bs, int64_t sector_num, |
172 | QEMUIOVector *iov, int nb_sectors, | |
173 | BlockDriverCompletionFunc *cb, void *opaque); | |
174 | BlockDriverAIOCB *bdrv_aio_writev(BlockDriverState *bs, int64_t sector_num, | |
175 | QEMUIOVector *iov, int nb_sectors, | |
176 | BlockDriverCompletionFunc *cb, void *opaque); | |
b2e12bc6 | 177 | BlockDriverAIOCB *bdrv_aio_flush(BlockDriverState *bs, |
39aa9a12 | 178 | BlockDriverCompletionFunc *cb, void *opaque); |
4265d620 PB |
179 | BlockDriverAIOCB *bdrv_aio_discard(BlockDriverState *bs, |
180 | int64_t sector_num, int nb_sectors, | |
181 | BlockDriverCompletionFunc *cb, void *opaque); | |
faf07963 PB |
182 | void bdrv_aio_cancel(BlockDriverAIOCB *acb); |
183 | ||
40b4f539 KW |
184 | typedef struct BlockRequest { |
185 | /* Fields to be filled by multiwrite caller */ | |
186 | int64_t sector; | |
187 | int nb_sectors; | |
188 | QEMUIOVector *qiov; | |
189 | BlockDriverCompletionFunc *cb; | |
190 | void *opaque; | |
191 | ||
192 | /* Filled by multiwrite implementation */ | |
193 | int error; | |
194 | } BlockRequest; | |
195 | ||
196 | int bdrv_aio_multiwrite(BlockDriverState *bs, BlockRequest *reqs, | |
197 | int num_reqs); | |
198 | ||
7d780669 | 199 | /* sg packet commands */ |
221f715d AL |
200 | int bdrv_ioctl(BlockDriverState *bs, unsigned long int req, void *buf); |
201 | BlockDriverAIOCB *bdrv_aio_ioctl(BlockDriverState *bs, | |
202 | unsigned long int req, void *buf, | |
203 | BlockDriverCompletionFunc *cb, void *opaque); | |
7d780669 | 204 | |
0f15423c AL |
205 | /* Invalidate any cached metadata used by image formats */ |
206 | void bdrv_invalidate_cache(BlockDriverState *bs); | |
207 | void bdrv_invalidate_cache_all(void); | |
208 | ||
faf07963 | 209 | /* Ensure contents are flushed to disk. */ |
205ef796 | 210 | int bdrv_flush(BlockDriverState *bs); |
07f07615 | 211 | int coroutine_fn bdrv_co_flush(BlockDriverState *bs); |
c6ca28d6 | 212 | void bdrv_flush_all(void); |
2bc93fed | 213 | void bdrv_close_all(void); |
c6ca28d6 | 214 | |
bb8bf76f | 215 | int bdrv_discard(BlockDriverState *bs, int64_t sector_num, int nb_sectors); |
4265d620 | 216 | int bdrv_co_discard(BlockDriverState *bs, int64_t sector_num, int nb_sectors); |
f2feebbd | 217 | int bdrv_has_zero_init(BlockDriverState *bs); |
f58c7b35 | 218 | int bdrv_is_allocated(BlockDriverState *bs, int64_t sector_num, int nb_sectors, |
39aa9a12 | 219 | int *pnum); |
faf07963 | 220 | |
faf07963 PB |
221 | #define BIOS_ATA_TRANSLATION_AUTO 0 |
222 | #define BIOS_ATA_TRANSLATION_NONE 1 | |
223 | #define BIOS_ATA_TRANSLATION_LBA 2 | |
224 | #define BIOS_ATA_TRANSLATION_LARGE 3 | |
225 | #define BIOS_ATA_TRANSLATION_RECHS 4 | |
226 | ||
227 | void bdrv_set_geometry_hint(BlockDriverState *bs, | |
228 | int cyls, int heads, int secs); | |
faf07963 PB |
229 | void bdrv_set_translation_hint(BlockDriverState *bs, int translation); |
230 | void bdrv_get_geometry_hint(BlockDriverState *bs, | |
231 | int *pcyls, int *pheads, int *psecs); | |
5bbdbb46 BS |
232 | typedef enum FDriveType { |
233 | FDRIVE_DRV_144 = 0x00, /* 1.44 MB 3"5 drive */ | |
234 | FDRIVE_DRV_288 = 0x01, /* 2.88 MB 3"5 drive */ | |
235 | FDRIVE_DRV_120 = 0x02, /* 1.2 MB 5"25 drive */ | |
236 | FDRIVE_DRV_NONE = 0x03, /* No drive connected */ | |
237 | } FDriveType; | |
238 | ||
239 | void bdrv_get_floppy_geometry_hint(BlockDriverState *bs, int *nb_heads, | |
240 | int *max_track, int *last_sect, | |
241 | FDriveType drive_in, FDriveType *drive); | |
faf07963 | 242 | int bdrv_get_translation_hint(BlockDriverState *bs); |
abd7f68d MA |
243 | void bdrv_set_on_error(BlockDriverState *bs, BlockErrorAction on_read_error, |
244 | BlockErrorAction on_write_error); | |
245 | BlockErrorAction bdrv_get_on_error(BlockDriverState *bs, int is_read); | |
faf07963 | 246 | int bdrv_is_read_only(BlockDriverState *bs); |
985a03b0 | 247 | int bdrv_is_sg(BlockDriverState *bs); |
e900a7b7 | 248 | int bdrv_enable_write_cache(BlockDriverState *bs); |
faf07963 PB |
249 | int bdrv_is_inserted(BlockDriverState *bs); |
250 | int bdrv_media_changed(BlockDriverState *bs); | |
025e849a | 251 | void bdrv_lock_medium(BlockDriverState *bs, bool locked); |
fdec4404 | 252 | void bdrv_eject(BlockDriverState *bs, int eject_flag); |
faf07963 PB |
253 | void bdrv_get_format(BlockDriverState *bs, char *buf, int buf_size); |
254 | BlockDriverState *bdrv_find(const char *name); | |
2f399b0a | 255 | BlockDriverState *bdrv_next(BlockDriverState *bs); |
51de9760 AL |
256 | void bdrv_iterate(void (*it)(void *opaque, BlockDriverState *bs), |
257 | void *opaque); | |
faf07963 | 258 | int bdrv_is_encrypted(BlockDriverState *bs); |
c0f4ce77 | 259 | int bdrv_key_required(BlockDriverState *bs); |
faf07963 | 260 | int bdrv_set_key(BlockDriverState *bs, const char *key); |
c0f4ce77 | 261 | int bdrv_query_missing_keys(void); |
faf07963 PB |
262 | void bdrv_iterate_format(void (*it)(void *opaque, const char *name), |
263 | void *opaque); | |
264 | const char *bdrv_get_device_name(BlockDriverState *bs); | |
265 | int bdrv_write_compressed(BlockDriverState *bs, int64_t sector_num, | |
266 | const uint8_t *buf, int nb_sectors); | |
267 | int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi); | |
268 | ||
045df330 | 269 | const char *bdrv_get_encrypted_filename(BlockDriverState *bs); |
faf07963 PB |
270 | void bdrv_get_backing_filename(BlockDriverState *bs, |
271 | char *filename, int filename_size); | |
feeee5ac | 272 | int bdrv_can_snapshot(BlockDriverState *bs); |
199630b6 | 273 | int bdrv_is_snapshot(BlockDriverState *bs); |
f9092b10 | 274 | BlockDriverState *bdrv_snapshots(void); |
faf07963 PB |
275 | int bdrv_snapshot_create(BlockDriverState *bs, |
276 | QEMUSnapshotInfo *sn_info); | |
277 | int bdrv_snapshot_goto(BlockDriverState *bs, | |
278 | const char *snapshot_id); | |
279 | int bdrv_snapshot_delete(BlockDriverState *bs, const char *snapshot_id); | |
280 | int bdrv_snapshot_list(BlockDriverState *bs, | |
281 | QEMUSnapshotInfo **psn_info); | |
51ef6727 | 282 | int bdrv_snapshot_load_tmp(BlockDriverState *bs, |
283 | const char *snapshot_name); | |
faf07963 PB |
284 | char *bdrv_snapshot_dump(char *buf, int buf_size, QEMUSnapshotInfo *sn); |
285 | ||
286 | char *get_human_readable_size(char *buf, int buf_size, int64_t size); | |
287 | int path_is_absolute(const char *path); | |
288 | void path_combine(char *dest, int dest_size, | |
289 | const char *base_path, | |
290 | const char *filename); | |
291 | ||
45566e9c CH |
292 | int bdrv_save_vmstate(BlockDriverState *bs, const uint8_t *buf, |
293 | int64_t pos, int size); | |
178e08a5 | 294 | |
45566e9c CH |
295 | int bdrv_load_vmstate(BlockDriverState *bs, uint8_t *buf, |
296 | int64_t pos, int size); | |
178e08a5 | 297 | |
f88e1a42 JS |
298 | int bdrv_img_create(const char *filename, const char *fmt, |
299 | const char *base_filename, const char *base_fmt, | |
300 | char *options, uint64_t img_size, int flags); | |
301 | ||
7b6f9300 | 302 | void bdrv_set_buffer_alignment(BlockDriverState *bs, int align); |
ba5b7ad4 MA |
303 | void *qemu_blockalign(BlockDriverState *bs, size_t size); |
304 | ||
23bd90d2 | 305 | #define BDRV_SECTORS_PER_DIRTY_CHUNK 2048 |
6ea44308 | 306 | |
7cd1e32a | 307 | void bdrv_set_dirty_tracking(BlockDriverState *bs, int enable); |
308 | int bdrv_get_dirty(BlockDriverState *bs, int64_t sector); | |
a55eb92c JK |
309 | void bdrv_reset_dirty(BlockDriverState *bs, int64_t cur_sector, |
310 | int nr_sectors); | |
aaa0eb75 | 311 | int64_t bdrv_get_dirty_count(BlockDriverState *bs); |
8b9b0cc2 | 312 | |
db593f25 MT |
313 | void bdrv_set_in_use(BlockDriverState *bs, int in_use); |
314 | int bdrv_in_use(BlockDriverState *bs); | |
8b9b0cc2 | 315 | |
a597e79c CH |
316 | enum BlockAcctType { |
317 | BDRV_ACCT_READ, | |
318 | BDRV_ACCT_WRITE, | |
319 | BDRV_ACCT_FLUSH, | |
320 | BDRV_MAX_IOTYPE, | |
321 | }; | |
322 | ||
323 | typedef struct BlockAcctCookie { | |
324 | int64_t bytes; | |
c488c7f6 | 325 | int64_t start_time_ns; |
a597e79c CH |
326 | enum BlockAcctType type; |
327 | } BlockAcctCookie; | |
328 | ||
329 | void bdrv_acct_start(BlockDriverState *bs, BlockAcctCookie *cookie, | |
330 | int64_t bytes, enum BlockAcctType type); | |
331 | void bdrv_acct_done(BlockDriverState *bs, BlockAcctCookie *cookie); | |
332 | ||
8b9b0cc2 | 333 | typedef enum { |
8252278a KW |
334 | BLKDBG_L1_UPDATE, |
335 | ||
336 | BLKDBG_L1_GROW_ALLOC_TABLE, | |
337 | BLKDBG_L1_GROW_WRITE_TABLE, | |
338 | BLKDBG_L1_GROW_ACTIVATE_TABLE, | |
339 | ||
340 | BLKDBG_L2_LOAD, | |
341 | BLKDBG_L2_UPDATE, | |
342 | BLKDBG_L2_UPDATE_COMPRESSED, | |
343 | BLKDBG_L2_ALLOC_COW_READ, | |
344 | BLKDBG_L2_ALLOC_WRITE, | |
345 | ||
346 | BLKDBG_READ, | |
347 | BLKDBG_READ_AIO, | |
348 | BLKDBG_READ_BACKING, | |
349 | BLKDBG_READ_BACKING_AIO, | |
350 | BLKDBG_READ_COMPRESSED, | |
351 | ||
352 | BLKDBG_WRITE_AIO, | |
353 | BLKDBG_WRITE_COMPRESSED, | |
354 | ||
355 | BLKDBG_VMSTATE_LOAD, | |
356 | BLKDBG_VMSTATE_SAVE, | |
357 | ||
358 | BLKDBG_COW_READ, | |
359 | BLKDBG_COW_WRITE, | |
360 | ||
361 | BLKDBG_REFTABLE_LOAD, | |
362 | BLKDBG_REFTABLE_GROW, | |
363 | ||
364 | BLKDBG_REFBLOCK_LOAD, | |
365 | BLKDBG_REFBLOCK_UPDATE, | |
366 | BLKDBG_REFBLOCK_UPDATE_PART, | |
367 | BLKDBG_REFBLOCK_ALLOC, | |
368 | BLKDBG_REFBLOCK_ALLOC_HOOKUP, | |
369 | BLKDBG_REFBLOCK_ALLOC_WRITE, | |
370 | BLKDBG_REFBLOCK_ALLOC_WRITE_BLOCKS, | |
371 | BLKDBG_REFBLOCK_ALLOC_WRITE_TABLE, | |
372 | BLKDBG_REFBLOCK_ALLOC_SWITCH_TABLE, | |
373 | ||
374 | BLKDBG_CLUSTER_ALLOC, | |
375 | BLKDBG_CLUSTER_ALLOC_BYTES, | |
376 | BLKDBG_CLUSTER_FREE, | |
377 | ||
8b9b0cc2 KW |
378 | BLKDBG_EVENT_MAX, |
379 | } BlkDebugEvent; | |
380 | ||
381 | #define BLKDBG_EVENT(bs, evt) bdrv_debug_event(bs, evt) | |
382 | void bdrv_debug_event(BlockDriverState *bs, BlkDebugEvent event); | |
383 | ||
d1a0739d MA |
384 | |
385 | /* Convenience for block device models */ | |
386 | ||
387 | typedef struct BlockConf { | |
388 | BlockDriverState *bs; | |
389 | uint16_t physical_block_size; | |
390 | uint16_t logical_block_size; | |
391 | uint16_t min_io_size; | |
392 | uint32_t opt_io_size; | |
393 | int32_t bootindex; | |
394 | uint32_t discard_granularity; | |
395 | } BlockConf; | |
396 | ||
397 | static inline unsigned int get_physical_block_exp(BlockConf *conf) | |
398 | { | |
399 | unsigned int exp = 0, size; | |
400 | ||
401 | for (size = conf->physical_block_size; | |
402 | size > conf->logical_block_size; | |
403 | size >>= 1) { | |
404 | exp++; | |
405 | } | |
406 | ||
407 | return exp; | |
408 | } | |
409 | ||
410 | #define DEFINE_BLOCK_PROPERTIES(_state, _conf) \ | |
411 | DEFINE_PROP_DRIVE("drive", _state, _conf.bs), \ | |
412 | DEFINE_PROP_UINT16("logical_block_size", _state, \ | |
413 | _conf.logical_block_size, 512), \ | |
414 | DEFINE_PROP_UINT16("physical_block_size", _state, \ | |
415 | _conf.physical_block_size, 512), \ | |
416 | DEFINE_PROP_UINT16("min_io_size", _state, _conf.min_io_size, 0), \ | |
417 | DEFINE_PROP_UINT32("opt_io_size", _state, _conf.opt_io_size, 0), \ | |
418 | DEFINE_PROP_INT32("bootindex", _state, _conf.bootindex, -1), \ | |
419 | DEFINE_PROP_UINT32("discard_granularity", _state, \ | |
420 | _conf.discard_granularity, 0) | |
421 | ||
faf07963 | 422 | #endif |
a597e79c | 423 |