root / block.h @ be40edcd
History | View | Annotate | Download (15.3 kB)
1 | faf07963 | pbrook | #ifndef BLOCK_H
|
---|---|---|---|
2 | faf07963 | pbrook | #define BLOCK_H
|
3 | faf07963 | pbrook | |
4 | a76bab49 | aliguori | #include "qemu-aio.h" |
5 | 3b69e4b9 | aliguori | #include "qemu-common.h" |
6 | 0e7e1989 | Kevin Wolf | #include "qemu-option.h" |
7 | da1fa91d | Kevin Wolf | #include "qemu-coroutine.h" |
8 | d15e5465 | Luiz Capitulino | #include "qobject.h" |
9 | a76bab49 | aliguori | |
10 | faf07963 | pbrook | /* block.c */
|
11 | faf07963 | pbrook | typedef struct BlockDriver BlockDriver; |
12 | faf07963 | pbrook | |
13 | faf07963 | pbrook | typedef struct BlockDriverInfo { |
14 | faf07963 | pbrook | /* in bytes, 0 if irrelevant */
|
15 | faf07963 | pbrook | int cluster_size;
|
16 | faf07963 | pbrook | /* offset at which the VM state can be saved (0 if not possible) */
|
17 | faf07963 | pbrook | int64_t vm_state_offset; |
18 | faf07963 | pbrook | } BlockDriverInfo; |
19 | faf07963 | pbrook | |
20 | faf07963 | pbrook | typedef struct QEMUSnapshotInfo { |
21 | faf07963 | pbrook | char id_str[128]; /* unique snapshot id */ |
22 | faf07963 | pbrook | /* the following fields are informative. They are not needed for
|
23 | faf07963 | pbrook | the consistency of the snapshot */
|
24 | faf07963 | pbrook | char name[256]; /* user choosen name */ |
25 | faf07963 | pbrook | uint32_t vm_state_size; /* VM state info size */
|
26 | faf07963 | pbrook | uint32_t date_sec; /* UTC date of the snapshot */
|
27 | faf07963 | pbrook | uint32_t date_nsec; |
28 | faf07963 | pbrook | uint64_t vm_clock_nsec; /* VM clock relative to boot */
|
29 | faf07963 | pbrook | } QEMUSnapshotInfo; |
30 | faf07963 | pbrook | |
31 | 145feb17 | Markus Armbruster | /* Callbacks for block device models */
|
32 | 0e49de52 | Markus Armbruster | typedef struct BlockDevOps { |
33 | 145feb17 | Markus Armbruster | /*
|
34 | 145feb17 | Markus Armbruster | * Runs when virtual media changed (monitor commands eject, change)
|
35 | 7d4b4ba5 | Markus Armbruster | * Argument load is true on load and false on eject.
|
36 | 145feb17 | Markus Armbruster | * Beware: doesn't run when a host device's physical media
|
37 | 145feb17 | Markus Armbruster | * changes. Sure would be useful if it did.
|
38 | 2c6942fa | Markus Armbruster | * Device models with removable media must implement this callback.
|
39 | 145feb17 | Markus Armbruster | */
|
40 | 7d4b4ba5 | Markus Armbruster | void (*change_media_cb)(void *opaque, bool load); |
41 | 145feb17 | Markus Armbruster | /*
|
42 | e4def80b | Markus Armbruster | * Is the virtual tray open?
|
43 | e4def80b | Markus Armbruster | * Device models implement this only when the device has a tray.
|
44 | e4def80b | Markus Armbruster | */
|
45 | e4def80b | Markus Armbruster | bool (*is_tray_open)(void *opaque); |
46 | e4def80b | Markus Armbruster | /*
|
47 | f107639a | Markus Armbruster | * Is the virtual medium locked into the device?
|
48 | f107639a | Markus Armbruster | * Device models implement this only when device has such a lock.
|
49 | f107639a | Markus Armbruster | */
|
50 | f107639a | Markus Armbruster | bool (*is_medium_locked)(void *opaque); |
51 | f107639a | Markus Armbruster | /*
|
52 | 145feb17 | Markus Armbruster | * Runs when the size changed (e.g. monitor command block_resize)
|
53 | 145feb17 | Markus Armbruster | */
|
54 | 145feb17 | Markus Armbruster | void (*resize_cb)(void *opaque); |
55 | 0e49de52 | Markus Armbruster | } BlockDevOps; |
56 | 0e49de52 | Markus Armbruster | |
57 | faf07963 | pbrook | #define BDRV_O_RDWR 0x0002 |
58 | faf07963 | pbrook | #define BDRV_O_SNAPSHOT 0x0008 /* open the file read only and save writes in a snapshot */ |
59 | 9f7965c7 | aliguori | #define BDRV_O_NOCACHE 0x0020 /* do not use the host page cache */ |
60 | 9f7965c7 | aliguori | #define BDRV_O_CACHE_WB 0x0040 /* use write-back caching */ |
61 | 5c6c3a6c | Christoph Hellwig | #define BDRV_O_NATIVE_AIO 0x0080 /* use native AIO instead of the thread pool */ |
62 | b783e409 | Kevin Wolf | #define BDRV_O_NO_BACKING 0x0100 /* don't open the backing file */ |
63 | 016f5cf6 | Alexander Graf | #define BDRV_O_NO_FLUSH 0x0200 /* disable flushing on this disk */ |
64 | 9f7965c7 | aliguori | |
65 | ceb25e5c | Kevin Wolf | #define BDRV_O_CACHE_MASK (BDRV_O_NOCACHE | BDRV_O_CACHE_WB | BDRV_O_NO_FLUSH)
|
66 | faf07963 | pbrook | |
67 | 6ea44308 | Jan Kiszka | #define BDRV_SECTOR_BITS 9 |
68 | c63782cb | Jes Sorensen | #define BDRV_SECTOR_SIZE (1ULL << BDRV_SECTOR_BITS) |
69 | 3abbc4d9 | Stefan Hajnoczi | #define BDRV_SECTOR_MASK ~(BDRV_SECTOR_SIZE - 1) |
70 | 6ea44308 | Jan Kiszka | |
71 | 2582bfed | Luiz Capitulino | typedef enum { |
72 | abd7f68d | Markus Armbruster | BLOCK_ERR_REPORT, BLOCK_ERR_IGNORE, BLOCK_ERR_STOP_ENOSPC, |
73 | abd7f68d | Markus Armbruster | BLOCK_ERR_STOP_ANY |
74 | abd7f68d | Markus Armbruster | } BlockErrorAction; |
75 | abd7f68d | Markus Armbruster | |
76 | abd7f68d | Markus Armbruster | typedef enum { |
77 | 2582bfed | Luiz Capitulino | BDRV_ACTION_REPORT, BDRV_ACTION_IGNORE, BDRV_ACTION_STOP |
78 | 2582bfed | Luiz Capitulino | } BlockMonEventAction; |
79 | 2582bfed | Luiz Capitulino | |
80 | 28a7282a | Luiz Capitulino | typedef enum { |
81 | 28a7282a | Luiz Capitulino | BDRV_IOS_INVAL, BDRV_IOS_OK, BDRV_IOS_FAILED, BDRV_IOS_ENOSPC, |
82 | 28a7282a | Luiz Capitulino | BDRV_IOS_MAX |
83 | 28a7282a | Luiz Capitulino | } BlockIOStatus; |
84 | 28a7282a | Luiz Capitulino | |
85 | 28a7282a | Luiz Capitulino | void bdrv_iostatus_enable(BlockDriverState *bs);
|
86 | 28a7282a | Luiz Capitulino | void bdrv_iostatus_reset(BlockDriverState *bs);
|
87 | 28a7282a | Luiz Capitulino | void bdrv_iostatus_disable(BlockDriverState *bs);
|
88 | 28a7282a | Luiz Capitulino | bool bdrv_iostatus_is_enabled(const BlockDriverState *bs); |
89 | 28a7282a | Luiz Capitulino | void bdrv_iostatus_set_err(BlockDriverState *bs, int error); |
90 | 2582bfed | Luiz Capitulino | void bdrv_mon_event(const BlockDriverState *bdrv, |
91 | 2582bfed | Luiz Capitulino | BlockMonEventAction action, int is_read);
|
92 | d15e5465 | Luiz Capitulino | void bdrv_info_print(Monitor *mon, const QObject *data); |
93 | d15e5465 | Luiz Capitulino | void bdrv_info(Monitor *mon, QObject **ret_data);
|
94 | 218a536a | Luiz Capitulino | void bdrv_stats_print(Monitor *mon, const QObject *data); |
95 | 218a536a | Luiz Capitulino | void bdrv_info_stats(Monitor *mon, QObject **ret_data);
|
96 | faf07963 | pbrook | |
97 | faf07963 | pbrook | void bdrv_init(void); |
98 | eb852011 | Markus Armbruster | void bdrv_init_with_whitelist(void); |
99 | b50cbabc | MORITA Kazutaka | BlockDriver *bdrv_find_protocol(const char *filename); |
100 | faf07963 | pbrook | BlockDriver *bdrv_find_format(const char *format_name); |
101 | eb852011 | Markus Armbruster | BlockDriver *bdrv_find_whitelisted_format(const char *format_name); |
102 | 0e7e1989 | Kevin Wolf | int bdrv_create(BlockDriver *drv, const char* filename, |
103 | 0e7e1989 | Kevin Wolf | QEMUOptionParameter *options); |
104 | 84a12e66 | Christoph Hellwig | int bdrv_create_file(const char* filename, QEMUOptionParameter *options); |
105 | faf07963 | pbrook | BlockDriverState *bdrv_new(const char *device_name); |
106 | d22b2f41 | Ryan Harper | void bdrv_make_anon(BlockDriverState *bs);
|
107 | faf07963 | pbrook | void bdrv_delete(BlockDriverState *bs);
|
108 | c3993cdc | Stefan Hajnoczi | int bdrv_parse_cache_flags(const char *mode, int *flags); |
109 | faf07963 | pbrook | int bdrv_file_open(BlockDriverState **pbs, const char *filename, int flags); |
110 | d6e9098e | Kevin Wolf | int bdrv_open(BlockDriverState *bs, const char *filename, int flags, |
111 | d6e9098e | Kevin Wolf | BlockDriver *drv); |
112 | faf07963 | pbrook | void bdrv_close(BlockDriverState *bs);
|
113 | fa879d62 | Markus Armbruster | int bdrv_attach_dev(BlockDriverState *bs, void *dev); |
114 | fa879d62 | Markus Armbruster | void bdrv_attach_dev_nofail(BlockDriverState *bs, void *dev); |
115 | fa879d62 | Markus Armbruster | void bdrv_detach_dev(BlockDriverState *bs, void *dev); |
116 | fa879d62 | Markus Armbruster | void *bdrv_get_attached_dev(BlockDriverState *bs);
|
117 | 0e49de52 | Markus Armbruster | void bdrv_set_dev_ops(BlockDriverState *bs, const BlockDevOps *ops, |
118 | 0e49de52 | Markus Armbruster | void *opaque);
|
119 | 2c6942fa | Markus Armbruster | bool bdrv_dev_has_removable_media(BlockDriverState *bs);
|
120 | e4def80b | Markus Armbruster | bool bdrv_dev_is_tray_open(BlockDriverState *bs);
|
121 | f107639a | Markus Armbruster | bool bdrv_dev_is_medium_locked(BlockDriverState *bs);
|
122 | faf07963 | pbrook | int bdrv_read(BlockDriverState *bs, int64_t sector_num,
|
123 | faf07963 | pbrook | uint8_t *buf, int nb_sectors);
|
124 | faf07963 | pbrook | int bdrv_write(BlockDriverState *bs, int64_t sector_num,
|
125 | faf07963 | pbrook | const uint8_t *buf, int nb_sectors); |
126 | faf07963 | pbrook | int bdrv_pread(BlockDriverState *bs, int64_t offset,
|
127 | faf07963 | pbrook | void *buf, int count); |
128 | faf07963 | pbrook | int bdrv_pwrite(BlockDriverState *bs, int64_t offset,
|
129 | faf07963 | pbrook | const void *buf, int count); |
130 | f08145fe | Kevin Wolf | int bdrv_pwrite_sync(BlockDriverState *bs, int64_t offset,
|
131 | f08145fe | Kevin Wolf | const void *buf, int count); |
132 | da1fa91d | Kevin Wolf | int coroutine_fn bdrv_co_readv(BlockDriverState *bs, int64_t sector_num,
|
133 | da1fa91d | Kevin Wolf | int nb_sectors, QEMUIOVector *qiov);
|
134 | da1fa91d | Kevin Wolf | int coroutine_fn bdrv_co_writev(BlockDriverState *bs, int64_t sector_num,
|
135 | da1fa91d | Kevin Wolf | int nb_sectors, QEMUIOVector *qiov);
|
136 | faf07963 | pbrook | int bdrv_truncate(BlockDriverState *bs, int64_t offset);
|
137 | faf07963 | pbrook | int64_t bdrv_getlength(BlockDriverState *bs); |
138 | 4a1d5e1f | Fam Zheng | int64_t bdrv_get_allocated_file_size(BlockDriverState *bs); |
139 | 96b8f136 | ths | void bdrv_get_geometry(BlockDriverState *bs, uint64_t *nb_sectors_ptr);
|
140 | f3d54fc4 | aliguori | void bdrv_guess_geometry(BlockDriverState *bs, int *pcyls, int *pheads, int *psecs); |
141 | faf07963 | pbrook | int bdrv_commit(BlockDriverState *bs);
|
142 | 6ab4b5ab | Markus Armbruster | void bdrv_commit_all(void); |
143 | 756e6736 | Kevin Wolf | int bdrv_change_backing_file(BlockDriverState *bs,
|
144 | 756e6736 | Kevin Wolf | const char *backing_file, const char *backing_fmt); |
145 | 5efa9d5a | Anthony Liguori | void bdrv_register(BlockDriver *bdrv);
|
146 | 5efa9d5a | Anthony Liguori | |
147 | e076f338 | Kevin Wolf | |
148 | e076f338 | Kevin Wolf | typedef struct BdrvCheckResult { |
149 | e076f338 | Kevin Wolf | int corruptions;
|
150 | e076f338 | Kevin Wolf | int leaks;
|
151 | e076f338 | Kevin Wolf | int check_errors;
|
152 | e076f338 | Kevin Wolf | } BdrvCheckResult; |
153 | e076f338 | Kevin Wolf | |
154 | e076f338 | Kevin Wolf | int bdrv_check(BlockDriverState *bs, BdrvCheckResult *res);
|
155 | e076f338 | Kevin Wolf | |
156 | faf07963 | pbrook | /* async block I/O */
|
157 | faf07963 | pbrook | typedef struct BlockDriverAIOCB BlockDriverAIOCB; |
158 | faf07963 | pbrook | typedef void BlockDriverCompletionFunc(void *opaque, int ret); |
159 | 7cd1e32a | lirans@il.ibm.com | typedef void BlockDriverDirtyHandler(BlockDriverState *bs, int64_t sector, |
160 | 39aa9a12 | Devin Nakamura | int sector_num);
|
161 | 3b69e4b9 | aliguori | BlockDriverAIOCB *bdrv_aio_readv(BlockDriverState *bs, int64_t sector_num, |
162 | 3b69e4b9 | aliguori | QEMUIOVector *iov, int nb_sectors,
|
163 | 3b69e4b9 | aliguori | BlockDriverCompletionFunc *cb, void *opaque);
|
164 | 3b69e4b9 | aliguori | BlockDriverAIOCB *bdrv_aio_writev(BlockDriverState *bs, int64_t sector_num, |
165 | 3b69e4b9 | aliguori | QEMUIOVector *iov, int nb_sectors,
|
166 | 3b69e4b9 | aliguori | BlockDriverCompletionFunc *cb, void *opaque);
|
167 | b2e12bc6 | Christoph Hellwig | BlockDriverAIOCB *bdrv_aio_flush(BlockDriverState *bs, |
168 | 39aa9a12 | Devin Nakamura | BlockDriverCompletionFunc *cb, void *opaque);
|
169 | 4265d620 | Paolo Bonzini | BlockDriverAIOCB *bdrv_aio_discard(BlockDriverState *bs, |
170 | 4265d620 | Paolo Bonzini | int64_t sector_num, int nb_sectors,
|
171 | 4265d620 | Paolo Bonzini | BlockDriverCompletionFunc *cb, void *opaque);
|
172 | faf07963 | pbrook | void bdrv_aio_cancel(BlockDriverAIOCB *acb);
|
173 | faf07963 | pbrook | |
174 | 40b4f539 | Kevin Wolf | typedef struct BlockRequest { |
175 | 40b4f539 | Kevin Wolf | /* Fields to be filled by multiwrite caller */
|
176 | 40b4f539 | Kevin Wolf | int64_t sector; |
177 | 40b4f539 | Kevin Wolf | int nb_sectors;
|
178 | 40b4f539 | Kevin Wolf | QEMUIOVector *qiov; |
179 | 40b4f539 | Kevin Wolf | BlockDriverCompletionFunc *cb; |
180 | 40b4f539 | Kevin Wolf | void *opaque;
|
181 | 40b4f539 | Kevin Wolf | |
182 | 40b4f539 | Kevin Wolf | /* Filled by multiwrite implementation */
|
183 | 40b4f539 | Kevin Wolf | int error;
|
184 | 40b4f539 | Kevin Wolf | } BlockRequest; |
185 | 40b4f539 | Kevin Wolf | |
186 | 40b4f539 | Kevin Wolf | int bdrv_aio_multiwrite(BlockDriverState *bs, BlockRequest *reqs,
|
187 | 40b4f539 | Kevin Wolf | int num_reqs);
|
188 | 40b4f539 | Kevin Wolf | |
189 | 7d780669 | aliguori | /* sg packet commands */
|
190 | 221f715d | aliguori | int bdrv_ioctl(BlockDriverState *bs, unsigned long int req, void *buf); |
191 | 221f715d | aliguori | BlockDriverAIOCB *bdrv_aio_ioctl(BlockDriverState *bs, |
192 | 221f715d | aliguori | unsigned long int req, void *buf, |
193 | 221f715d | aliguori | BlockDriverCompletionFunc *cb, void *opaque);
|
194 | 7d780669 | aliguori | |
195 | faf07963 | pbrook | /* Ensure contents are flushed to disk. */
|
196 | 205ef796 | Kevin Wolf | int bdrv_flush(BlockDriverState *bs);
|
197 | 07f07615 | Paolo Bonzini | int coroutine_fn bdrv_co_flush(BlockDriverState *bs);
|
198 | c6ca28d6 | aliguori | void bdrv_flush_all(void); |
199 | 2bc93fed | MORITA Kazutaka | void bdrv_close_all(void); |
200 | c6ca28d6 | aliguori | |
201 | bb8bf76f | Christoph Hellwig | int bdrv_discard(BlockDriverState *bs, int64_t sector_num, int nb_sectors); |
202 | 4265d620 | Paolo Bonzini | int bdrv_co_discard(BlockDriverState *bs, int64_t sector_num, int nb_sectors); |
203 | f2feebbd | Kevin Wolf | int bdrv_has_zero_init(BlockDriverState *bs);
|
204 | f58c7b35 | ths | int bdrv_is_allocated(BlockDriverState *bs, int64_t sector_num, int nb_sectors, |
205 | 39aa9a12 | Devin Nakamura | int *pnum);
|
206 | faf07963 | pbrook | |
207 | faf07963 | pbrook | #define BIOS_ATA_TRANSLATION_AUTO 0 |
208 | faf07963 | pbrook | #define BIOS_ATA_TRANSLATION_NONE 1 |
209 | faf07963 | pbrook | #define BIOS_ATA_TRANSLATION_LBA 2 |
210 | faf07963 | pbrook | #define BIOS_ATA_TRANSLATION_LARGE 3 |
211 | faf07963 | pbrook | #define BIOS_ATA_TRANSLATION_RECHS 4 |
212 | faf07963 | pbrook | |
213 | faf07963 | pbrook | void bdrv_set_geometry_hint(BlockDriverState *bs,
|
214 | faf07963 | pbrook | int cyls, int heads, int secs); |
215 | faf07963 | pbrook | void bdrv_set_translation_hint(BlockDriverState *bs, int translation); |
216 | faf07963 | pbrook | void bdrv_get_geometry_hint(BlockDriverState *bs,
|
217 | faf07963 | pbrook | int *pcyls, int *pheads, int *psecs); |
218 | 5bbdbb46 | Blue Swirl | typedef enum FDriveType { |
219 | 5bbdbb46 | Blue Swirl | FDRIVE_DRV_144 = 0x00, /* 1.44 MB 3"5 drive */ |
220 | 5bbdbb46 | Blue Swirl | FDRIVE_DRV_288 = 0x01, /* 2.88 MB 3"5 drive */ |
221 | 5bbdbb46 | Blue Swirl | FDRIVE_DRV_120 = 0x02, /* 1.2 MB 5"25 drive */ |
222 | 5bbdbb46 | Blue Swirl | FDRIVE_DRV_NONE = 0x03, /* No drive connected */ |
223 | 5bbdbb46 | Blue Swirl | } FDriveType; |
224 | 5bbdbb46 | Blue Swirl | |
225 | 5bbdbb46 | Blue Swirl | void bdrv_get_floppy_geometry_hint(BlockDriverState *bs, int *nb_heads, |
226 | 5bbdbb46 | Blue Swirl | int *max_track, int *last_sect, |
227 | 5bbdbb46 | Blue Swirl | FDriveType drive_in, FDriveType *drive); |
228 | faf07963 | pbrook | int bdrv_get_translation_hint(BlockDriverState *bs);
|
229 | abd7f68d | Markus Armbruster | void bdrv_set_on_error(BlockDriverState *bs, BlockErrorAction on_read_error,
|
230 | abd7f68d | Markus Armbruster | BlockErrorAction on_write_error); |
231 | abd7f68d | Markus Armbruster | BlockErrorAction bdrv_get_on_error(BlockDriverState *bs, int is_read);
|
232 | faf07963 | pbrook | int bdrv_is_read_only(BlockDriverState *bs);
|
233 | 985a03b0 | ths | int bdrv_is_sg(BlockDriverState *bs);
|
234 | e900a7b7 | Christoph Hellwig | int bdrv_enable_write_cache(BlockDriverState *bs);
|
235 | faf07963 | pbrook | int bdrv_is_inserted(BlockDriverState *bs);
|
236 | faf07963 | pbrook | int bdrv_media_changed(BlockDriverState *bs);
|
237 | 025e849a | Markus Armbruster | void bdrv_lock_medium(BlockDriverState *bs, bool locked); |
238 | fdec4404 | Markus Armbruster | void bdrv_eject(BlockDriverState *bs, int eject_flag); |
239 | faf07963 | pbrook | void bdrv_get_format(BlockDriverState *bs, char *buf, int buf_size); |
240 | faf07963 | pbrook | BlockDriverState *bdrv_find(const char *name); |
241 | 2f399b0a | Markus Armbruster | BlockDriverState *bdrv_next(BlockDriverState *bs); |
242 | 51de9760 | aliguori | void bdrv_iterate(void (*it)(void *opaque, BlockDriverState *bs), |
243 | 51de9760 | aliguori | void *opaque);
|
244 | faf07963 | pbrook | int bdrv_is_encrypted(BlockDriverState *bs);
|
245 | c0f4ce77 | aliguori | int bdrv_key_required(BlockDriverState *bs);
|
246 | faf07963 | pbrook | int bdrv_set_key(BlockDriverState *bs, const char *key); |
247 | c0f4ce77 | aliguori | int bdrv_query_missing_keys(void); |
248 | faf07963 | pbrook | void bdrv_iterate_format(void (*it)(void *opaque, const char *name), |
249 | faf07963 | pbrook | void *opaque);
|
250 | faf07963 | pbrook | const char *bdrv_get_device_name(BlockDriverState *bs); |
251 | faf07963 | pbrook | int bdrv_write_compressed(BlockDriverState *bs, int64_t sector_num,
|
252 | faf07963 | pbrook | const uint8_t *buf, int nb_sectors); |
253 | faf07963 | pbrook | int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi);
|
254 | faf07963 | pbrook | |
255 | 045df330 | aliguori | const char *bdrv_get_encrypted_filename(BlockDriverState *bs); |
256 | faf07963 | pbrook | void bdrv_get_backing_filename(BlockDriverState *bs,
|
257 | faf07963 | pbrook | char *filename, int filename_size); |
258 | feeee5ac | Miguel Di Ciurcio Filho | int bdrv_can_snapshot(BlockDriverState *bs);
|
259 | 199630b6 | Blue Swirl | int bdrv_is_snapshot(BlockDriverState *bs);
|
260 | f9092b10 | Markus Armbruster | BlockDriverState *bdrv_snapshots(void);
|
261 | faf07963 | pbrook | int bdrv_snapshot_create(BlockDriverState *bs,
|
262 | faf07963 | pbrook | QEMUSnapshotInfo *sn_info); |
263 | faf07963 | pbrook | int bdrv_snapshot_goto(BlockDriverState *bs,
|
264 | faf07963 | pbrook | const char *snapshot_id); |
265 | faf07963 | pbrook | int bdrv_snapshot_delete(BlockDriverState *bs, const char *snapshot_id); |
266 | faf07963 | pbrook | int bdrv_snapshot_list(BlockDriverState *bs,
|
267 | faf07963 | pbrook | QEMUSnapshotInfo **psn_info); |
268 | 51ef6727 | edison | int bdrv_snapshot_load_tmp(BlockDriverState *bs,
|
269 | 51ef6727 | edison | const char *snapshot_name); |
270 | faf07963 | pbrook | char *bdrv_snapshot_dump(char *buf, int buf_size, QEMUSnapshotInfo *sn); |
271 | faf07963 | pbrook | |
272 | faf07963 | pbrook | char *get_human_readable_size(char *buf, int buf_size, int64_t size); |
273 | faf07963 | pbrook | int path_is_absolute(const char *path); |
274 | faf07963 | pbrook | void path_combine(char *dest, int dest_size, |
275 | faf07963 | pbrook | const char *base_path, |
276 | faf07963 | pbrook | const char *filename); |
277 | faf07963 | pbrook | |
278 | 45566e9c | Christoph Hellwig | int bdrv_save_vmstate(BlockDriverState *bs, const uint8_t *buf, |
279 | 45566e9c | Christoph Hellwig | int64_t pos, int size);
|
280 | 178e08a5 | aliguori | |
281 | 45566e9c | Christoph Hellwig | int bdrv_load_vmstate(BlockDriverState *bs, uint8_t *buf,
|
282 | 45566e9c | Christoph Hellwig | int64_t pos, int size);
|
283 | 178e08a5 | aliguori | |
284 | f88e1a42 | Jes Sorensen | int bdrv_img_create(const char *filename, const char *fmt, |
285 | f88e1a42 | Jes Sorensen | const char *base_filename, const char *base_fmt, |
286 | f88e1a42 | Jes Sorensen | char *options, uint64_t img_size, int flags); |
287 | f88e1a42 | Jes Sorensen | |
288 | 7b6f9300 | Markus Armbruster | void bdrv_set_buffer_alignment(BlockDriverState *bs, int align); |
289 | ba5b7ad4 | Markus Armbruster | void *qemu_blockalign(BlockDriverState *bs, size_t size);
|
290 | ba5b7ad4 | Markus Armbruster | |
291 | 23bd90d2 | Jan Kiszka | #define BDRV_SECTORS_PER_DIRTY_CHUNK 2048 |
292 | 6ea44308 | Jan Kiszka | |
293 | 7cd1e32a | lirans@il.ibm.com | void bdrv_set_dirty_tracking(BlockDriverState *bs, int enable); |
294 | 7cd1e32a | lirans@il.ibm.com | int bdrv_get_dirty(BlockDriverState *bs, int64_t sector);
|
295 | a55eb92c | Jan Kiszka | void bdrv_reset_dirty(BlockDriverState *bs, int64_t cur_sector,
|
296 | a55eb92c | Jan Kiszka | int nr_sectors);
|
297 | aaa0eb75 | Liran Schour | int64_t bdrv_get_dirty_count(BlockDriverState *bs); |
298 | 8b9b0cc2 | Kevin Wolf | |
299 | db593f25 | Marcelo Tosatti | void bdrv_set_in_use(BlockDriverState *bs, int in_use); |
300 | db593f25 | Marcelo Tosatti | int bdrv_in_use(BlockDriverState *bs);
|
301 | 8b9b0cc2 | Kevin Wolf | |
302 | a597e79c | Christoph Hellwig | enum BlockAcctType {
|
303 | a597e79c | Christoph Hellwig | BDRV_ACCT_READ, |
304 | a597e79c | Christoph Hellwig | BDRV_ACCT_WRITE, |
305 | a597e79c | Christoph Hellwig | BDRV_ACCT_FLUSH, |
306 | a597e79c | Christoph Hellwig | BDRV_MAX_IOTYPE, |
307 | a597e79c | Christoph Hellwig | }; |
308 | a597e79c | Christoph Hellwig | |
309 | a597e79c | Christoph Hellwig | typedef struct BlockAcctCookie { |
310 | a597e79c | Christoph Hellwig | int64_t bytes; |
311 | c488c7f6 | Christoph Hellwig | int64_t start_time_ns; |
312 | a597e79c | Christoph Hellwig | enum BlockAcctType type;
|
313 | a597e79c | Christoph Hellwig | } BlockAcctCookie; |
314 | a597e79c | Christoph Hellwig | |
315 | a597e79c | Christoph Hellwig | void bdrv_acct_start(BlockDriverState *bs, BlockAcctCookie *cookie,
|
316 | a597e79c | Christoph Hellwig | int64_t bytes, enum BlockAcctType type);
|
317 | a597e79c | Christoph Hellwig | void bdrv_acct_done(BlockDriverState *bs, BlockAcctCookie *cookie);
|
318 | a597e79c | Christoph Hellwig | |
319 | 8b9b0cc2 | Kevin Wolf | typedef enum { |
320 | 8252278a | Kevin Wolf | BLKDBG_L1_UPDATE, |
321 | 8252278a | Kevin Wolf | |
322 | 8252278a | Kevin Wolf | BLKDBG_L1_GROW_ALLOC_TABLE, |
323 | 8252278a | Kevin Wolf | BLKDBG_L1_GROW_WRITE_TABLE, |
324 | 8252278a | Kevin Wolf | BLKDBG_L1_GROW_ACTIVATE_TABLE, |
325 | 8252278a | Kevin Wolf | |
326 | 8252278a | Kevin Wolf | BLKDBG_L2_LOAD, |
327 | 8252278a | Kevin Wolf | BLKDBG_L2_UPDATE, |
328 | 8252278a | Kevin Wolf | BLKDBG_L2_UPDATE_COMPRESSED, |
329 | 8252278a | Kevin Wolf | BLKDBG_L2_ALLOC_COW_READ, |
330 | 8252278a | Kevin Wolf | BLKDBG_L2_ALLOC_WRITE, |
331 | 8252278a | Kevin Wolf | |
332 | 8252278a | Kevin Wolf | BLKDBG_READ, |
333 | 8252278a | Kevin Wolf | BLKDBG_READ_AIO, |
334 | 8252278a | Kevin Wolf | BLKDBG_READ_BACKING, |
335 | 8252278a | Kevin Wolf | BLKDBG_READ_BACKING_AIO, |
336 | 8252278a | Kevin Wolf | BLKDBG_READ_COMPRESSED, |
337 | 8252278a | Kevin Wolf | |
338 | 8252278a | Kevin Wolf | BLKDBG_WRITE_AIO, |
339 | 8252278a | Kevin Wolf | BLKDBG_WRITE_COMPRESSED, |
340 | 8252278a | Kevin Wolf | |
341 | 8252278a | Kevin Wolf | BLKDBG_VMSTATE_LOAD, |
342 | 8252278a | Kevin Wolf | BLKDBG_VMSTATE_SAVE, |
343 | 8252278a | Kevin Wolf | |
344 | 8252278a | Kevin Wolf | BLKDBG_COW_READ, |
345 | 8252278a | Kevin Wolf | BLKDBG_COW_WRITE, |
346 | 8252278a | Kevin Wolf | |
347 | 8252278a | Kevin Wolf | BLKDBG_REFTABLE_LOAD, |
348 | 8252278a | Kevin Wolf | BLKDBG_REFTABLE_GROW, |
349 | 8252278a | Kevin Wolf | |
350 | 8252278a | Kevin Wolf | BLKDBG_REFBLOCK_LOAD, |
351 | 8252278a | Kevin Wolf | BLKDBG_REFBLOCK_UPDATE, |
352 | 8252278a | Kevin Wolf | BLKDBG_REFBLOCK_UPDATE_PART, |
353 | 8252278a | Kevin Wolf | BLKDBG_REFBLOCK_ALLOC, |
354 | 8252278a | Kevin Wolf | BLKDBG_REFBLOCK_ALLOC_HOOKUP, |
355 | 8252278a | Kevin Wolf | BLKDBG_REFBLOCK_ALLOC_WRITE, |
356 | 8252278a | Kevin Wolf | BLKDBG_REFBLOCK_ALLOC_WRITE_BLOCKS, |
357 | 8252278a | Kevin Wolf | BLKDBG_REFBLOCK_ALLOC_WRITE_TABLE, |
358 | 8252278a | Kevin Wolf | BLKDBG_REFBLOCK_ALLOC_SWITCH_TABLE, |
359 | 8252278a | Kevin Wolf | |
360 | 8252278a | Kevin Wolf | BLKDBG_CLUSTER_ALLOC, |
361 | 8252278a | Kevin Wolf | BLKDBG_CLUSTER_ALLOC_BYTES, |
362 | 8252278a | Kevin Wolf | BLKDBG_CLUSTER_FREE, |
363 | 8252278a | Kevin Wolf | |
364 | 8b9b0cc2 | Kevin Wolf | BLKDBG_EVENT_MAX, |
365 | 8b9b0cc2 | Kevin Wolf | } BlkDebugEvent; |
366 | 8b9b0cc2 | Kevin Wolf | |
367 | 8b9b0cc2 | Kevin Wolf | #define BLKDBG_EVENT(bs, evt) bdrv_debug_event(bs, evt)
|
368 | 8b9b0cc2 | Kevin Wolf | void bdrv_debug_event(BlockDriverState *bs, BlkDebugEvent event);
|
369 | 8b9b0cc2 | Kevin Wolf | |
370 | d1a0739d | Markus Armbruster | |
371 | d1a0739d | Markus Armbruster | /* Convenience for block device models */
|
372 | d1a0739d | Markus Armbruster | |
373 | d1a0739d | Markus Armbruster | typedef struct BlockConf { |
374 | d1a0739d | Markus Armbruster | BlockDriverState *bs; |
375 | d1a0739d | Markus Armbruster | uint16_t physical_block_size; |
376 | d1a0739d | Markus Armbruster | uint16_t logical_block_size; |
377 | d1a0739d | Markus Armbruster | uint16_t min_io_size; |
378 | d1a0739d | Markus Armbruster | uint32_t opt_io_size; |
379 | d1a0739d | Markus Armbruster | int32_t bootindex; |
380 | d1a0739d | Markus Armbruster | uint32_t discard_granularity; |
381 | d1a0739d | Markus Armbruster | } BlockConf; |
382 | d1a0739d | Markus Armbruster | |
383 | d1a0739d | Markus Armbruster | static inline unsigned int get_physical_block_exp(BlockConf *conf) |
384 | d1a0739d | Markus Armbruster | { |
385 | d1a0739d | Markus Armbruster | unsigned int exp = 0, size; |
386 | d1a0739d | Markus Armbruster | |
387 | d1a0739d | Markus Armbruster | for (size = conf->physical_block_size;
|
388 | d1a0739d | Markus Armbruster | size > conf->logical_block_size; |
389 | d1a0739d | Markus Armbruster | size >>= 1) {
|
390 | d1a0739d | Markus Armbruster | exp++; |
391 | d1a0739d | Markus Armbruster | } |
392 | d1a0739d | Markus Armbruster | |
393 | d1a0739d | Markus Armbruster | return exp;
|
394 | d1a0739d | Markus Armbruster | } |
395 | d1a0739d | Markus Armbruster | |
396 | d1a0739d | Markus Armbruster | #define DEFINE_BLOCK_PROPERTIES(_state, _conf) \
|
397 | d1a0739d | Markus Armbruster | DEFINE_PROP_DRIVE("drive", _state, _conf.bs), \
|
398 | d1a0739d | Markus Armbruster | DEFINE_PROP_UINT16("logical_block_size", _state, \
|
399 | d1a0739d | Markus Armbruster | _conf.logical_block_size, 512), \
|
400 | d1a0739d | Markus Armbruster | DEFINE_PROP_UINT16("physical_block_size", _state, \
|
401 | d1a0739d | Markus Armbruster | _conf.physical_block_size, 512), \
|
402 | d1a0739d | Markus Armbruster | DEFINE_PROP_UINT16("min_io_size", _state, _conf.min_io_size, 0), \ |
403 | d1a0739d | Markus Armbruster | DEFINE_PROP_UINT32("opt_io_size", _state, _conf.opt_io_size, 0), \ |
404 | d1a0739d | Markus Armbruster | DEFINE_PROP_INT32("bootindex", _state, _conf.bootindex, -1), \ |
405 | d1a0739d | Markus Armbruster | DEFINE_PROP_UINT32("discard_granularity", _state, \
|
406 | d1a0739d | Markus Armbruster | _conf.discard_granularity, 0)
|
407 | d1a0739d | Markus Armbruster | |
408 | faf07963 | pbrook | #endif
|