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Commit | Line | Data |
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faf07963 PB |
1 | #ifndef BLOCK_H |
2 | #define BLOCK_H | |
3 | ||
737e150e | 4 | #include "block/aio.h" |
3b69e4b9 | 5 | #include "qemu-common.h" |
1de7afc9 | 6 | #include "qemu/option.h" |
737e150e | 7 | #include "block/coroutine.h" |
7b1b5d19 | 8 | #include "qapi/qmp/qobject.h" |
2f0c9fe6 | 9 | #include "qapi-types.h" |
a76bab49 | 10 | |
faf07963 | 11 | /* block.c */ |
faf07963 | 12 | typedef struct BlockDriver BlockDriver; |
2f0c9fe6 | 13 | typedef struct BlockJob BlockJob; |
faf07963 | 14 | |
faf07963 PB |
15 | typedef struct BlockDriverInfo { |
16 | /* in bytes, 0 if irrelevant */ | |
17 | int cluster_size; | |
18 | /* offset at which the VM state can be saved (0 if not possible) */ | |
19 | int64_t vm_state_offset; | |
64c79160 | 20 | bool is_dirty; |
faf07963 PB |
21 | } BlockDriverInfo; |
22 | ||
f8111c24 DXW |
23 | typedef struct BlockFragInfo { |
24 | uint64_t allocated_clusters; | |
25 | uint64_t total_clusters; | |
26 | uint64_t fragmented_clusters; | |
e6439d78 | 27 | uint64_t compressed_clusters; |
f8111c24 DXW |
28 | } BlockFragInfo; |
29 | ||
145feb17 | 30 | /* Callbacks for block device models */ |
0e49de52 | 31 | typedef struct BlockDevOps { |
145feb17 MA |
32 | /* |
33 | * Runs when virtual media changed (monitor commands eject, change) | |
7d4b4ba5 | 34 | * Argument load is true on load and false on eject. |
145feb17 MA |
35 | * Beware: doesn't run when a host device's physical media |
36 | * changes. Sure would be useful if it did. | |
2c6942fa | 37 | * Device models with removable media must implement this callback. |
145feb17 | 38 | */ |
7d4b4ba5 | 39 | void (*change_media_cb)(void *opaque, bool load); |
025ccaa7 PB |
40 | /* |
41 | * Runs when an eject request is issued from the monitor, the tray | |
42 | * is closed, and the medium is locked. | |
43 | * Device models that do not implement is_medium_locked will not need | |
44 | * this callback. Device models that can lock the medium or tray might | |
45 | * want to implement the callback and unlock the tray when "force" is | |
46 | * true, even if they do not support eject requests. | |
47 | */ | |
48 | void (*eject_request_cb)(void *opaque, bool force); | |
e4def80b MA |
49 | /* |
50 | * Is the virtual tray open? | |
51 | * Device models implement this only when the device has a tray. | |
52 | */ | |
53 | bool (*is_tray_open)(void *opaque); | |
f107639a MA |
54 | /* |
55 | * Is the virtual medium locked into the device? | |
56 | * Device models implement this only when device has such a lock. | |
57 | */ | |
58 | bool (*is_medium_locked)(void *opaque); | |
145feb17 MA |
59 | /* |
60 | * Runs when the size changed (e.g. monitor command block_resize) | |
61 | */ | |
62 | void (*resize_cb)(void *opaque); | |
0e49de52 MA |
63 | } BlockDevOps; |
64 | ||
faf07963 | 65 | #define BDRV_O_RDWR 0x0002 |
faf07963 | 66 | #define BDRV_O_SNAPSHOT 0x0008 /* open the file read only and save writes in a snapshot */ |
9f7965c7 AL |
67 | #define BDRV_O_NOCACHE 0x0020 /* do not use the host page cache */ |
68 | #define BDRV_O_CACHE_WB 0x0040 /* use write-back caching */ | |
5c6c3a6c | 69 | #define BDRV_O_NATIVE_AIO 0x0080 /* use native AIO instead of the thread pool */ |
b783e409 | 70 | #define BDRV_O_NO_BACKING 0x0100 /* don't open the backing file */ |
016f5cf6 | 71 | #define BDRV_O_NO_FLUSH 0x0200 /* disable flushing on this disk */ |
53fec9d3 | 72 | #define BDRV_O_COPY_ON_READ 0x0400 /* copy read backing sectors into image */ |
ccb1f4a7 | 73 | #define BDRV_O_INCOMING 0x0800 /* consistency hint for incoming migration */ |
058f8f16 | 74 | #define BDRV_O_CHECK 0x1000 /* open solely for consistency check */ |
be028adc | 75 | #define BDRV_O_ALLOW_RDWR 0x2000 /* allow reopen to change from r/o to r/w */ |
9e8f1835 | 76 | #define BDRV_O_UNMAP 0x4000 /* execute guest UNMAP/TRIM operations */ |
9f7965c7 | 77 | |
ceb25e5c | 78 | #define BDRV_O_CACHE_MASK (BDRV_O_NOCACHE | BDRV_O_CACHE_WB | BDRV_O_NO_FLUSH) |
faf07963 | 79 | |
6ea44308 | 80 | #define BDRV_SECTOR_BITS 9 |
c63782cb | 81 | #define BDRV_SECTOR_SIZE (1ULL << BDRV_SECTOR_BITS) |
3abbc4d9 | 82 | #define BDRV_SECTOR_MASK ~(BDRV_SECTOR_SIZE - 1) |
6ea44308 | 83 | |
4333bb71 PB |
84 | /* BDRV_BLOCK_DATA: data is read from bs->file or another file |
85 | * BDRV_BLOCK_ZERO: sectors read as zero | |
86 | * BDRV_BLOCK_OFFSET_VALID: sector stored in bs->file as raw data | |
87 | * | |
88 | * If BDRV_BLOCK_OFFSET_VALID is set, bits 9-62 represent the offset in | |
89 | * bs->file where sector data can be read from as raw data. | |
90 | * | |
91 | * DATA == 0 && ZERO == 0 means that data is read from backing_hd if present. | |
92 | * | |
93 | * DATA ZERO OFFSET_VALID | |
94 | * t t t sectors read as zero, bs->file is zero at offset | |
95 | * t f t sectors read as valid from bs->file at offset | |
96 | * f t t sectors preallocated, read as zero, bs->file not | |
97 | * necessarily zero at offset | |
98 | * f f t sectors preallocated but read from backing_hd, | |
99 | * bs->file contains garbage at offset | |
100 | * t t f sectors preallocated, read as zero, unknown offset | |
101 | * t f f sectors read from unknown file or offset | |
102 | * f t f not allocated or unknown offset, read as zero | |
103 | * f f f not allocated or unknown offset, read from backing_hd | |
104 | */ | |
105 | #define BDRV_BLOCK_DATA 1 | |
106 | #define BDRV_BLOCK_ZERO 2 | |
107 | #define BDRV_BLOCK_OFFSET_VALID 4 | |
108 | #define BDRV_BLOCK_OFFSET_MASK BDRV_SECTOR_MASK | |
109 | ||
2582bfed LC |
110 | typedef enum { |
111 | BDRV_ACTION_REPORT, BDRV_ACTION_IGNORE, BDRV_ACTION_STOP | |
ff06f5f3 | 112 | } BlockErrorAction; |
2582bfed | 113 | |
e971aa12 JC |
114 | typedef QSIMPLEQ_HEAD(BlockReopenQueue, BlockReopenQueueEntry) BlockReopenQueue; |
115 | ||
116 | typedef struct BDRVReopenState { | |
117 | BlockDriverState *bs; | |
118 | int flags; | |
119 | void *opaque; | |
120 | } BDRVReopenState; | |
121 | ||
122 | ||
28a7282a LC |
123 | void bdrv_iostatus_enable(BlockDriverState *bs); |
124 | void bdrv_iostatus_reset(BlockDriverState *bs); | |
125 | void bdrv_iostatus_disable(BlockDriverState *bs); | |
126 | bool bdrv_iostatus_is_enabled(const BlockDriverState *bs); | |
127 | void bdrv_iostatus_set_err(BlockDriverState *bs, int error); | |
d15e5465 LC |
128 | void bdrv_info_print(Monitor *mon, const QObject *data); |
129 | void bdrv_info(Monitor *mon, QObject **ret_data); | |
218a536a LC |
130 | void bdrv_stats_print(Monitor *mon, const QObject *data); |
131 | void bdrv_info_stats(Monitor *mon, QObject **ret_data); | |
faf07963 | 132 | |
0563e191 ZYW |
133 | /* disk I/O throttling */ |
134 | void bdrv_io_limits_enable(BlockDriverState *bs); | |
98f90dba | 135 | void bdrv_io_limits_disable(BlockDriverState *bs); |
0563e191 | 136 | |
faf07963 | 137 | void bdrv_init(void); |
eb852011 | 138 | void bdrv_init_with_whitelist(void); |
98289620 KW |
139 | BlockDriver *bdrv_find_protocol(const char *filename, |
140 | bool allow_protocol_prefix); | |
faf07963 | 141 | BlockDriver *bdrv_find_format(const char *format_name); |
b64ec4e4 FZ |
142 | BlockDriver *bdrv_find_whitelisted_format(const char *format_name, |
143 | bool readonly); | |
0e7e1989 | 144 | int bdrv_create(BlockDriver *drv, const char* filename, |
cc84d90f MR |
145 | QEMUOptionParameter *options, Error **errp); |
146 | int bdrv_create_file(const char* filename, QEMUOptionParameter *options, | |
147 | Error **errp); | |
faf07963 | 148 | BlockDriverState *bdrv_new(const char *device_name); |
d22b2f41 | 149 | void bdrv_make_anon(BlockDriverState *bs); |
4ddc07ca | 150 | void bdrv_swap(BlockDriverState *bs_new, BlockDriverState *bs_old); |
8802d1fd | 151 | void bdrv_append(BlockDriverState *bs_new, BlockDriverState *bs_top); |
c3993cdc | 152 | int bdrv_parse_cache_flags(const char *mode, int *flags); |
9e8f1835 | 153 | int bdrv_parse_discard_flags(const char *mode, int *flags); |
787e4a85 | 154 | int bdrv_file_open(BlockDriverState **pbs, const char *filename, |
34b5d2c6 MR |
155 | QDict *options, int flags, Error **errp); |
156 | int bdrv_open_backing_file(BlockDriverState *bs, QDict *options, Error **errp); | |
de9c0cec | 157 | int bdrv_open(BlockDriverState *bs, const char *filename, QDict *options, |
34b5d2c6 | 158 | int flags, BlockDriver *drv, Error **errp); |
e971aa12 JC |
159 | BlockReopenQueue *bdrv_reopen_queue(BlockReopenQueue *bs_queue, |
160 | BlockDriverState *bs, int flags); | |
161 | int bdrv_reopen_multiple(BlockReopenQueue *bs_queue, Error **errp); | |
162 | int bdrv_reopen(BlockDriverState *bs, int bdrv_flags, Error **errp); | |
163 | int bdrv_reopen_prepare(BDRVReopenState *reopen_state, | |
164 | BlockReopenQueue *queue, Error **errp); | |
165 | void bdrv_reopen_commit(BDRVReopenState *reopen_state); | |
166 | void bdrv_reopen_abort(BDRVReopenState *reopen_state); | |
faf07963 | 167 | void bdrv_close(BlockDriverState *bs); |
d7d512f6 | 168 | void bdrv_add_close_notifier(BlockDriverState *bs, Notifier *notify); |
fa879d62 MA |
169 | int bdrv_attach_dev(BlockDriverState *bs, void *dev); |
170 | void bdrv_attach_dev_nofail(BlockDriverState *bs, void *dev); | |
171 | void bdrv_detach_dev(BlockDriverState *bs, void *dev); | |
172 | void *bdrv_get_attached_dev(BlockDriverState *bs); | |
0e49de52 MA |
173 | void bdrv_set_dev_ops(BlockDriverState *bs, const BlockDevOps *ops, |
174 | void *opaque); | |
025ccaa7 | 175 | void bdrv_dev_eject_request(BlockDriverState *bs, bool force); |
2c6942fa | 176 | bool bdrv_dev_has_removable_media(BlockDriverState *bs); |
e4def80b | 177 | bool bdrv_dev_is_tray_open(BlockDriverState *bs); |
f107639a | 178 | bool bdrv_dev_is_medium_locked(BlockDriverState *bs); |
faf07963 PB |
179 | int bdrv_read(BlockDriverState *bs, int64_t sector_num, |
180 | uint8_t *buf, int nb_sectors); | |
07d27a44 MA |
181 | int bdrv_read_unthrottled(BlockDriverState *bs, int64_t sector_num, |
182 | uint8_t *buf, int nb_sectors); | |
faf07963 PB |
183 | int bdrv_write(BlockDriverState *bs, int64_t sector_num, |
184 | const uint8_t *buf, int nb_sectors); | |
4105eaaa PL |
185 | int bdrv_write_zeroes(BlockDriverState *bs, int64_t sector_num, |
186 | int nb_sectors); | |
8d3b1a2d | 187 | int bdrv_writev(BlockDriverState *bs, int64_t sector_num, QEMUIOVector *qiov); |
faf07963 PB |
188 | int bdrv_pread(BlockDriverState *bs, int64_t offset, |
189 | void *buf, int count); | |
190 | int bdrv_pwrite(BlockDriverState *bs, int64_t offset, | |
191 | const void *buf, int count); | |
8d3b1a2d | 192 | int bdrv_pwritev(BlockDriverState *bs, int64_t offset, QEMUIOVector *qiov); |
f08145fe KW |
193 | int bdrv_pwrite_sync(BlockDriverState *bs, int64_t offset, |
194 | const void *buf, int count); | |
da1fa91d KW |
195 | int coroutine_fn bdrv_co_readv(BlockDriverState *bs, int64_t sector_num, |
196 | int nb_sectors, QEMUIOVector *qiov); | |
470c0504 SH |
197 | int coroutine_fn bdrv_co_copy_on_readv(BlockDriverState *bs, |
198 | int64_t sector_num, int nb_sectors, QEMUIOVector *qiov); | |
da1fa91d KW |
199 | int coroutine_fn bdrv_co_writev(BlockDriverState *bs, int64_t sector_num, |
200 | int nb_sectors, QEMUIOVector *qiov); | |
f08f2dda SH |
201 | /* |
202 | * Efficiently zero a region of the disk image. Note that this is a regular | |
203 | * I/O request like read or write and should have a reasonable size. This | |
204 | * function is not suitable for zeroing the entire image in a single request | |
205 | * because it may allocate memory for the entire region. | |
206 | */ | |
207 | int coroutine_fn bdrv_co_write_zeroes(BlockDriverState *bs, int64_t sector_num, | |
208 | int nb_sectors); | |
e8a6bb9c MT |
209 | BlockDriverState *bdrv_find_backing_image(BlockDriverState *bs, |
210 | const char *backing_file); | |
f198fd1c | 211 | int bdrv_get_backing_file_depth(BlockDriverState *bs); |
faf07963 PB |
212 | int bdrv_truncate(BlockDriverState *bs, int64_t offset); |
213 | int64_t bdrv_getlength(BlockDriverState *bs); | |
4a1d5e1f | 214 | int64_t bdrv_get_allocated_file_size(BlockDriverState *bs); |
96b8f136 | 215 | void bdrv_get_geometry(BlockDriverState *bs, uint64_t *nb_sectors_ptr); |
faf07963 | 216 | int bdrv_commit(BlockDriverState *bs); |
e8877497 | 217 | int bdrv_commit_all(void); |
756e6736 KW |
218 | int bdrv_change_backing_file(BlockDriverState *bs, |
219 | const char *backing_file, const char *backing_fmt); | |
5efa9d5a | 220 | void bdrv_register(BlockDriver *bdrv); |
6ebdcee2 JC |
221 | int bdrv_drop_intermediate(BlockDriverState *active, BlockDriverState *top, |
222 | BlockDriverState *base); | |
223 | BlockDriverState *bdrv_find_overlay(BlockDriverState *active, | |
224 | BlockDriverState *bs); | |
79fac568 | 225 | BlockDriverState *bdrv_find_base(BlockDriverState *bs); |
5efa9d5a | 226 | |
e076f338 KW |
227 | |
228 | typedef struct BdrvCheckResult { | |
229 | int corruptions; | |
230 | int leaks; | |
231 | int check_errors; | |
ccf34716 KW |
232 | int corruptions_fixed; |
233 | int leaks_fixed; | |
c6bb9ad1 | 234 | int64_t image_end_offset; |
f8111c24 | 235 | BlockFragInfo bfi; |
e076f338 KW |
236 | } BdrvCheckResult; |
237 | ||
4534ff54 KW |
238 | typedef enum { |
239 | BDRV_FIX_LEAKS = 1, | |
240 | BDRV_FIX_ERRORS = 2, | |
241 | } BdrvCheckMode; | |
242 | ||
243 | int bdrv_check(BlockDriverState *bs, BdrvCheckResult *res, BdrvCheckMode fix); | |
e076f338 | 244 | |
6f176b48 MR |
245 | int bdrv_amend_options(BlockDriverState *bs_new, QEMUOptionParameter *options); |
246 | ||
faf07963 | 247 | /* async block I/O */ |
7cd1e32a | 248 | typedef void BlockDriverDirtyHandler(BlockDriverState *bs, int64_t sector, |
39aa9a12 | 249 | int sector_num); |
3b69e4b9 AL |
250 | BlockDriverAIOCB *bdrv_aio_readv(BlockDriverState *bs, int64_t sector_num, |
251 | QEMUIOVector *iov, int nb_sectors, | |
252 | BlockDriverCompletionFunc *cb, void *opaque); | |
253 | BlockDriverAIOCB *bdrv_aio_writev(BlockDriverState *bs, int64_t sector_num, | |
254 | QEMUIOVector *iov, int nb_sectors, | |
255 | BlockDriverCompletionFunc *cb, void *opaque); | |
b2e12bc6 | 256 | BlockDriverAIOCB *bdrv_aio_flush(BlockDriverState *bs, |
39aa9a12 | 257 | BlockDriverCompletionFunc *cb, void *opaque); |
4265d620 PB |
258 | BlockDriverAIOCB *bdrv_aio_discard(BlockDriverState *bs, |
259 | int64_t sector_num, int nb_sectors, | |
260 | BlockDriverCompletionFunc *cb, void *opaque); | |
faf07963 PB |
261 | void bdrv_aio_cancel(BlockDriverAIOCB *acb); |
262 | ||
40b4f539 KW |
263 | typedef struct BlockRequest { |
264 | /* Fields to be filled by multiwrite caller */ | |
265 | int64_t sector; | |
266 | int nb_sectors; | |
267 | QEMUIOVector *qiov; | |
268 | BlockDriverCompletionFunc *cb; | |
269 | void *opaque; | |
270 | ||
271 | /* Filled by multiwrite implementation */ | |
272 | int error; | |
273 | } BlockRequest; | |
274 | ||
275 | int bdrv_aio_multiwrite(BlockDriverState *bs, BlockRequest *reqs, | |
276 | int num_reqs); | |
277 | ||
7d780669 | 278 | /* sg packet commands */ |
221f715d AL |
279 | int bdrv_ioctl(BlockDriverState *bs, unsigned long int req, void *buf); |
280 | BlockDriverAIOCB *bdrv_aio_ioctl(BlockDriverState *bs, | |
281 | unsigned long int req, void *buf, | |
282 | BlockDriverCompletionFunc *cb, void *opaque); | |
7d780669 | 283 | |
0f15423c AL |
284 | /* Invalidate any cached metadata used by image formats */ |
285 | void bdrv_invalidate_cache(BlockDriverState *bs); | |
286 | void bdrv_invalidate_cache_all(void); | |
287 | ||
07789269 BC |
288 | void bdrv_clear_incoming_migration_all(void); |
289 | ||
faf07963 | 290 | /* Ensure contents are flushed to disk. */ |
205ef796 | 291 | int bdrv_flush(BlockDriverState *bs); |
07f07615 | 292 | int coroutine_fn bdrv_co_flush(BlockDriverState *bs); |
f0f0fdfe | 293 | int bdrv_flush_all(void); |
2bc93fed | 294 | void bdrv_close_all(void); |
922453bc | 295 | void bdrv_drain_all(void); |
c6ca28d6 | 296 | |
bb8bf76f | 297 | int bdrv_discard(BlockDriverState *bs, int64_t sector_num, int nb_sectors); |
4265d620 | 298 | int bdrv_co_discard(BlockDriverState *bs, int64_t sector_num, int nb_sectors); |
3ac21627 | 299 | int bdrv_has_zero_init_1(BlockDriverState *bs); |
f2feebbd | 300 | int bdrv_has_zero_init(BlockDriverState *bs); |
b6b8a333 PB |
301 | int64_t bdrv_get_block_status(BlockDriverState *bs, int64_t sector_num, |
302 | int nb_sectors, int *pnum); | |
f58c7b35 | 303 | int bdrv_is_allocated(BlockDriverState *bs, int64_t sector_num, int nb_sectors, |
39aa9a12 | 304 | int *pnum); |
b35b2bba MR |
305 | int bdrv_is_allocated_above(BlockDriverState *top, BlockDriverState *base, |
306 | int64_t sector_num, int nb_sectors, int *pnum); | |
faf07963 | 307 | |
ff06f5f3 PB |
308 | void bdrv_set_on_error(BlockDriverState *bs, BlockdevOnError on_read_error, |
309 | BlockdevOnError on_write_error); | |
1ceee0d5 | 310 | BlockdevOnError bdrv_get_on_error(BlockDriverState *bs, bool is_read); |
3e1caa5f PB |
311 | BlockErrorAction bdrv_get_error_action(BlockDriverState *bs, bool is_read, int error); |
312 | void bdrv_error_action(BlockDriverState *bs, BlockErrorAction action, | |
313 | bool is_read, int error); | |
faf07963 | 314 | int bdrv_is_read_only(BlockDriverState *bs); |
985a03b0 | 315 | int bdrv_is_sg(BlockDriverState *bs); |
e900a7b7 | 316 | int bdrv_enable_write_cache(BlockDriverState *bs); |
425b0148 | 317 | void bdrv_set_enable_write_cache(BlockDriverState *bs, bool wce); |
faf07963 PB |
318 | int bdrv_is_inserted(BlockDriverState *bs); |
319 | int bdrv_media_changed(BlockDriverState *bs); | |
025e849a | 320 | void bdrv_lock_medium(BlockDriverState *bs, bool locked); |
f36f3949 | 321 | void bdrv_eject(BlockDriverState *bs, bool eject_flag); |
f8d6bba1 | 322 | const char *bdrv_get_format_name(BlockDriverState *bs); |
faf07963 | 323 | BlockDriverState *bdrv_find(const char *name); |
2f399b0a | 324 | BlockDriverState *bdrv_next(BlockDriverState *bs); |
51de9760 AL |
325 | void bdrv_iterate(void (*it)(void *opaque, BlockDriverState *bs), |
326 | void *opaque); | |
faf07963 | 327 | int bdrv_is_encrypted(BlockDriverState *bs); |
c0f4ce77 | 328 | int bdrv_key_required(BlockDriverState *bs); |
faf07963 | 329 | int bdrv_set_key(BlockDriverState *bs, const char *key); |
c0f4ce77 | 330 | int bdrv_query_missing_keys(void); |
faf07963 PB |
331 | void bdrv_iterate_format(void (*it)(void *opaque, const char *name), |
332 | void *opaque); | |
333 | const char *bdrv_get_device_name(BlockDriverState *bs); | |
c8433287 | 334 | int bdrv_get_flags(BlockDriverState *bs); |
faf07963 PB |
335 | int bdrv_write_compressed(BlockDriverState *bs, int64_t sector_num, |
336 | const uint8_t *buf, int nb_sectors); | |
337 | int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi); | |
343bded4 PB |
338 | void bdrv_round_to_clusters(BlockDriverState *bs, |
339 | int64_t sector_num, int nb_sectors, | |
340 | int64_t *cluster_sector_num, | |
341 | int *cluster_nb_sectors); | |
faf07963 | 342 | |
045df330 | 343 | const char *bdrv_get_encrypted_filename(BlockDriverState *bs); |
faf07963 PB |
344 | void bdrv_get_backing_filename(BlockDriverState *bs, |
345 | char *filename, int filename_size); | |
dc5a1371 PB |
346 | void bdrv_get_full_backing_filename(BlockDriverState *bs, |
347 | char *dest, size_t sz); | |
199630b6 | 348 | int bdrv_is_snapshot(BlockDriverState *bs); |
faf07963 | 349 | |
faf07963 PB |
350 | int path_is_absolute(const char *path); |
351 | void path_combine(char *dest, int dest_size, | |
352 | const char *base_path, | |
353 | const char *filename); | |
354 | ||
cf8074b3 | 355 | int bdrv_writev_vmstate(BlockDriverState *bs, QEMUIOVector *qiov, int64_t pos); |
45566e9c CH |
356 | int bdrv_save_vmstate(BlockDriverState *bs, const uint8_t *buf, |
357 | int64_t pos, int size); | |
178e08a5 | 358 | |
45566e9c CH |
359 | int bdrv_load_vmstate(BlockDriverState *bs, uint8_t *buf, |
360 | int64_t pos, int size); | |
178e08a5 | 361 | |
d92ada22 LC |
362 | void bdrv_img_create(const char *filename, const char *fmt, |
363 | const char *base_filename, const char *base_fmt, | |
f382d43a MR |
364 | char *options, uint64_t img_size, int flags, |
365 | Error **errp, bool quiet); | |
f88e1a42 | 366 | |
7b6f9300 | 367 | void bdrv_set_buffer_alignment(BlockDriverState *bs, int align); |
ba5b7ad4 | 368 | void *qemu_blockalign(BlockDriverState *bs, size_t size); |
c53b1c51 | 369 | bool bdrv_qiov_is_aligned(BlockDriverState *bs, QEMUIOVector *qiov); |
ba5b7ad4 | 370 | |
8f0720ec | 371 | struct HBitmapIter; |
50717e94 | 372 | void bdrv_set_dirty_tracking(BlockDriverState *bs, int granularity); |
7cd1e32a | 373 | int bdrv_get_dirty(BlockDriverState *bs, int64_t sector); |
1755da16 PB |
374 | void bdrv_set_dirty(BlockDriverState *bs, int64_t cur_sector, int nr_sectors); |
375 | void bdrv_reset_dirty(BlockDriverState *bs, int64_t cur_sector, int nr_sectors); | |
8f0720ec | 376 | void bdrv_dirty_iter_init(BlockDriverState *bs, struct HBitmapIter *hbi); |
aaa0eb75 | 377 | int64_t bdrv_get_dirty_count(BlockDriverState *bs); |
8b9b0cc2 | 378 | |
53fec9d3 SH |
379 | void bdrv_enable_copy_on_read(BlockDriverState *bs); |
380 | void bdrv_disable_copy_on_read(BlockDriverState *bs); | |
381 | ||
9fcb0251 FZ |
382 | void bdrv_ref(BlockDriverState *bs); |
383 | void bdrv_unref(BlockDriverState *bs); | |
db593f25 MT |
384 | void bdrv_set_in_use(BlockDriverState *bs, int in_use); |
385 | int bdrv_in_use(BlockDriverState *bs); | |
8b9b0cc2 | 386 | |
4065742a SH |
387 | #ifdef CONFIG_LINUX_AIO |
388 | int raw_get_aio_fd(BlockDriverState *bs); | |
389 | #else | |
390 | static inline int raw_get_aio_fd(BlockDriverState *bs) | |
391 | { | |
392 | return -ENOTSUP; | |
393 | } | |
394 | #endif | |
395 | ||
a597e79c CH |
396 | enum BlockAcctType { |
397 | BDRV_ACCT_READ, | |
398 | BDRV_ACCT_WRITE, | |
399 | BDRV_ACCT_FLUSH, | |
400 | BDRV_MAX_IOTYPE, | |
401 | }; | |
402 | ||
403 | typedef struct BlockAcctCookie { | |
404 | int64_t bytes; | |
c488c7f6 | 405 | int64_t start_time_ns; |
a597e79c CH |
406 | enum BlockAcctType type; |
407 | } BlockAcctCookie; | |
408 | ||
409 | void bdrv_acct_start(BlockDriverState *bs, BlockAcctCookie *cookie, | |
410 | int64_t bytes, enum BlockAcctType type); | |
411 | void bdrv_acct_done(BlockDriverState *bs, BlockAcctCookie *cookie); | |
412 | ||
8b9b0cc2 | 413 | typedef enum { |
8252278a KW |
414 | BLKDBG_L1_UPDATE, |
415 | ||
416 | BLKDBG_L1_GROW_ALLOC_TABLE, | |
417 | BLKDBG_L1_GROW_WRITE_TABLE, | |
418 | BLKDBG_L1_GROW_ACTIVATE_TABLE, | |
419 | ||
420 | BLKDBG_L2_LOAD, | |
421 | BLKDBG_L2_UPDATE, | |
422 | BLKDBG_L2_UPDATE_COMPRESSED, | |
423 | BLKDBG_L2_ALLOC_COW_READ, | |
424 | BLKDBG_L2_ALLOC_WRITE, | |
425 | ||
8252278a | 426 | BLKDBG_READ_AIO, |
8252278a KW |
427 | BLKDBG_READ_BACKING_AIO, |
428 | BLKDBG_READ_COMPRESSED, | |
429 | ||
430 | BLKDBG_WRITE_AIO, | |
431 | BLKDBG_WRITE_COMPRESSED, | |
432 | ||
433 | BLKDBG_VMSTATE_LOAD, | |
434 | BLKDBG_VMSTATE_SAVE, | |
435 | ||
436 | BLKDBG_COW_READ, | |
437 | BLKDBG_COW_WRITE, | |
438 | ||
439 | BLKDBG_REFTABLE_LOAD, | |
440 | BLKDBG_REFTABLE_GROW, | |
afa50193 | 441 | BLKDBG_REFTABLE_UPDATE, |
8252278a KW |
442 | |
443 | BLKDBG_REFBLOCK_LOAD, | |
444 | BLKDBG_REFBLOCK_UPDATE, | |
445 | BLKDBG_REFBLOCK_UPDATE_PART, | |
446 | BLKDBG_REFBLOCK_ALLOC, | |
447 | BLKDBG_REFBLOCK_ALLOC_HOOKUP, | |
448 | BLKDBG_REFBLOCK_ALLOC_WRITE, | |
449 | BLKDBG_REFBLOCK_ALLOC_WRITE_BLOCKS, | |
450 | BLKDBG_REFBLOCK_ALLOC_WRITE_TABLE, | |
451 | BLKDBG_REFBLOCK_ALLOC_SWITCH_TABLE, | |
452 | ||
453 | BLKDBG_CLUSTER_ALLOC, | |
454 | BLKDBG_CLUSTER_ALLOC_BYTES, | |
455 | BLKDBG_CLUSTER_FREE, | |
456 | ||
bf736fe3 KW |
457 | BLKDBG_FLUSH_TO_OS, |
458 | BLKDBG_FLUSH_TO_DISK, | |
459 | ||
8b9b0cc2 KW |
460 | BLKDBG_EVENT_MAX, |
461 | } BlkDebugEvent; | |
462 | ||
463 | #define BLKDBG_EVENT(bs, evt) bdrv_debug_event(bs, evt) | |
464 | void bdrv_debug_event(BlockDriverState *bs, BlkDebugEvent event); | |
465 | ||
41c695c7 KW |
466 | int bdrv_debug_breakpoint(BlockDriverState *bs, const char *event, |
467 | const char *tag); | |
468 | int bdrv_debug_resume(BlockDriverState *bs, const char *tag); | |
469 | bool bdrv_debug_is_suspended(BlockDriverState *bs, const char *tag); | |
470 | ||
8a4bc5aa | 471 | #endif |