]>
Commit | Line | Data |
---|---|---|
ea2384d3 | 1 | /* |
fb43f4dd | 2 | * QEMU disk image utility |
5fafdf24 | 3 | * |
68d0f70e | 4 | * Copyright (c) 2003-2008 Fabrice Bellard |
5fafdf24 | 5 | * |
ea2384d3 FB |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
452fcdbc | 24 | |
80c71a24 | 25 | #include "qemu/osdep.h" |
c2a3d7da EB |
26 | #include <getopt.h> |
27 | ||
a8d25326 | 28 | #include "qemu-common.h" |
16a18f26 | 29 | #include "qemu/qemu-progress.h" |
67a1de0d | 30 | #include "qemu-version.h" |
da34e65c | 31 | #include "qapi/error.h" |
3b51ab4b | 32 | #include "qapi/qapi-commands-block-core.h" |
9af23989 | 33 | #include "qapi/qapi-visit-block-core.h" |
b3db211f | 34 | #include "qapi/qobject-output-visitor.h" |
7b1b5d19 | 35 | #include "qapi/qmp/qjson.h" |
452fcdbc | 36 | #include "qapi/qmp/qdict.h" |
f348b6d1 | 37 | #include "qemu/cutils.h" |
3babeb15 | 38 | #include "qemu/config-file.h" |
1de7afc9 PB |
39 | #include "qemu/option.h" |
40 | #include "qemu/error-report.h" | |
06a1e0c1 | 41 | #include "qemu/log.h" |
db725815 | 42 | #include "qemu/main-loop.h" |
0b8fa32f | 43 | #include "qemu/module.h" |
98c5d2e7 | 44 | #include "qemu/sockets.h" |
97ede57a | 45 | #include "qemu/units.h" |
5df022cf | 46 | #include "qemu/memalign.h" |
3babeb15 | 47 | #include "qom/object_interfaces.h" |
26f54e9a | 48 | #include "sysemu/block-backend.h" |
737e150e | 49 | #include "block/block_int.h" |
d4a3238a | 50 | #include "block/blockjob.h" |
f364ec65 | 51 | #include "block/qapi.h" |
c2297088 | 52 | #include "crypto/init.h" |
06a1e0c1 | 53 | #include "trace/control.h" |
0c8c4895 ZL |
54 | #include "qemu/throttle.h" |
55 | #include "block/throttle-groups.h" | |
e8445331 | 56 | |
7e563bfb | 57 | #define QEMU_IMG_VERSION "qemu-img version " QEMU_FULL_VERSION \ |
0781dd6e | 58 | "\n" QEMU_COPYRIGHT "\n" |
5f6979cb | 59 | |
c227f099 | 60 | typedef struct img_cmd_t { |
153859be SB |
61 | const char *name; |
62 | int (*handler)(int argc, char **argv); | |
c227f099 | 63 | } img_cmd_t; |
153859be | 64 | |
8599ea4c FS |
65 | enum { |
66 | OPTION_OUTPUT = 256, | |
67 | OPTION_BACKING_CHAIN = 257, | |
3babeb15 | 68 | OPTION_OBJECT = 258, |
eb769f74 | 69 | OPTION_IMAGE_OPTS = 259, |
b6495fa8 | 70 | OPTION_PATTERN = 260, |
55d539c8 KW |
71 | OPTION_FLUSH_INTERVAL = 261, |
72 | OPTION_NO_DRAIN = 262, | |
305b4c60 | 73 | OPTION_TARGET_IMAGE_OPTS = 263, |
fd03c2b8 | 74 | OPTION_SIZE = 264, |
dc5f690b | 75 | OPTION_PREALLOCATION = 265, |
4ffca890 | 76 | OPTION_SHRINK = 266, |
8eaac025 | 77 | OPTION_SALVAGE = 267, |
168468fe | 78 | OPTION_TARGET_IS_ZERO = 268, |
3b51ab4b EB |
79 | OPTION_ADD = 269, |
80 | OPTION_REMOVE = 270, | |
81 | OPTION_CLEAR = 271, | |
82 | OPTION_ENABLE = 272, | |
83 | OPTION_DISABLE = 273, | |
84 | OPTION_MERGE = 274, | |
15e39ad9 | 85 | OPTION_BITMAPS = 275, |
a3579bfa | 86 | OPTION_FORCE = 276, |
955171e4 | 87 | OPTION_SKIP_BROKEN = 277, |
8599ea4c FS |
88 | }; |
89 | ||
90 | typedef enum OutputFormat { | |
91 | OFORMAT_JSON, | |
92 | OFORMAT_HUMAN, | |
93 | } OutputFormat; | |
94 | ||
e6996143 | 95 | /* Default to cache=writeback as data integrity is not important for qemu-img */ |
661a0f71 | 96 | #define BDRV_DEFAULT_CACHE "writeback" |
137519ce | 97 | |
00c6d403 | 98 | static void format_print(void *opaque, const char *name) |
ea2384d3 | 99 | { |
00c6d403 | 100 | printf(" %s", name); |
ea2384d3 FB |
101 | } |
102 | ||
9edc6313 | 103 | static void QEMU_NORETURN G_GNUC_PRINTF(1, 2) error_exit(const char *fmt, ...) |
ac1307ab FZ |
104 | { |
105 | va_list ap; | |
106 | ||
ac1307ab | 107 | va_start(ap, fmt); |
e9e1d92d | 108 | error_vreport(fmt, ap); |
ac1307ab FZ |
109 | va_end(ap); |
110 | ||
e9e1d92d | 111 | error_printf("Try 'qemu-img --help' for more information\n"); |
ac1307ab FZ |
112 | exit(EXIT_FAILURE); |
113 | } | |
114 | ||
c9192973 SH |
115 | static void QEMU_NORETURN missing_argument(const char *option) |
116 | { | |
117 | error_exit("missing argument for option '%s'", option); | |
118 | } | |
119 | ||
120 | static void QEMU_NORETURN unrecognized_option(const char *option) | |
121 | { | |
122 | error_exit("unrecognized option '%s'", option); | |
123 | } | |
124 | ||
0562adf5 | 125 | /* Please keep in synch with docs/tools/qemu-img.rst */ |
ac1307ab | 126 | static void QEMU_NORETURN help(void) |
ea2384d3 | 127 | { |
e00291c0 | 128 | const char *help_msg = |
5f6979cb | 129 | QEMU_IMG_VERSION |
10985131 | 130 | "usage: qemu-img [standard options] command [command options]\n" |
3f020d70 | 131 | "QEMU disk image utility\n" |
132 | "\n" | |
10985131 DL |
133 | " '-h', '--help' display this help and exit\n" |
134 | " '-V', '--version' output version information and exit\n" | |
06a1e0c1 DL |
135 | " '-T', '--trace' [[enable=]<pattern>][,events=<file>][,file=<file>]\n" |
136 | " specify tracing options\n" | |
10985131 | 137 | "\n" |
3f020d70 | 138 | "Command syntax:\n" |
153859be SB |
139 | #define DEF(option, callback, arg_string) \ |
140 | " " arg_string "\n" | |
141 | #include "qemu-img-cmds.h" | |
142 | #undef DEF | |
3f020d70 | 143 | "\n" |
144 | "Command parameters:\n" | |
145 | " 'filename' is a disk image filename\n" | |
3babeb15 DB |
146 | " 'objectdef' is a QEMU user creatable object definition. See the qemu(1)\n" |
147 | " manual page for a description of the object properties. The most common\n" | |
148 | " object type is a 'secret', which is used to supply passwords and/or\n" | |
149 | " encryption keys.\n" | |
3f020d70 | 150 | " 'fmt' is the disk image format. It is guessed automatically in most cases\n" |
661a0f71 | 151 | " 'cache' is the cache mode used to write the output disk image, the valid\n" |
80ccf93b LY |
152 | " options are: 'none', 'writeback' (default, except for convert), 'writethrough',\n" |
153 | " 'directsync' and 'unsafe' (default for convert)\n" | |
bb87fdf8 SH |
154 | " 'src_cache' is the cache mode used to read input disk images, the valid\n" |
155 | " options are the same as for the 'cache' option\n" | |
3f020d70 | 156 | " 'size' is the disk image size in bytes. Optional suffixes\n" |
5e00984a KW |
157 | " 'k' or 'K' (kilobyte, 1024), 'M' (megabyte, 1024k), 'G' (gigabyte, 1024M),\n" |
158 | " 'T' (terabyte, 1024G), 'P' (petabyte, 1024T) and 'E' (exabyte, 1024P) are\n" | |
159 | " supported. 'b' is ignored.\n" | |
3f020d70 | 160 | " 'output_filename' is the destination disk image filename\n" |
161 | " 'output_fmt' is the destination format\n" | |
162 | " 'options' is a comma separated list of format specific options in a\n" | |
163 | " name=value format. Use -o ? for an overview of the options supported by the\n" | |
164 | " used format\n" | |
ef80654d WX |
165 | " 'snapshot_param' is param used for internal snapshot, format\n" |
166 | " is 'snapshot.id=[ID],snapshot.name=[NAME]', or\n" | |
167 | " '[ID_OR_NAME]'\n" | |
3f020d70 | 168 | " '-c' indicates that target image must be compressed (qcow format only)\n" |
6e6e55f5 JS |
169 | " '-u' allows unsafe backing chains. For rebasing, it is assumed that old and\n" |
170 | " new backing file match exactly. The image doesn't need a working\n" | |
171 | " backing file before rebasing in this case (useful for renaming the\n" | |
172 | " backing file). For image creation, allow creating without attempting\n" | |
173 | " to open the backing file.\n" | |
3f020d70 | 174 | " '-h' with or without a command shows this help and lists the supported formats\n" |
6b837bc4 | 175 | " '-p' show progress of command (only certain commands)\n" |
f382d43a | 176 | " '-q' use Quiet mode - do not print any output (except errors)\n" |
11b6699a PL |
177 | " '-S' indicates the consecutive number of bytes (defaults to 4k) that must\n" |
178 | " contain only zeros for qemu-img to create a sparse image during\n" | |
179 | " conversion. If the number of bytes is 0, the source will not be scanned for\n" | |
180 | " unallocated or zero sectors, and the destination image will always be\n" | |
181 | " fully allocated\n" | |
c054b3fd | 182 | " '--output' takes the format in which the output must be done (human or json)\n" |
b2e10493 AD |
183 | " '-n' skips the target volume creation (useful if the volume is created\n" |
184 | " prior to running qemu-img)\n" | |
3f020d70 | 185 | "\n" |
3b51ab4b EB |
186 | "Parameters to bitmap subcommand:\n" |
187 | " 'bitmap' is the name of the bitmap to manipulate, through one or more\n" | |
188 | " actions from '--add', '--remove', '--clear', '--enable', '--disable',\n" | |
189 | " or '--merge source'\n" | |
190 | " '-g granularity' sets the granularity for '--add' actions\n" | |
191 | " '-b source' and '-F src_fmt' tell '--merge' actions to find the source\n" | |
192 | " bitmaps from an alternative file\n" | |
193 | "\n" | |
4534ff54 KW |
194 | "Parameters to check subcommand:\n" |
195 | " '-r' tries to repair any inconsistencies that are found during the check.\n" | |
196 | " '-r leaks' repairs only cluster leaks, whereas '-r all' fixes all\n" | |
197 | " kinds of errors, with a higher risk of choosing the wrong fix or\n" | |
0546b8c2 | 198 | " hiding corruption that has already occurred.\n" |
4534ff54 | 199 | "\n" |
2d9187bc | 200 | "Parameters to convert subcommand:\n" |
15e39ad9 | 201 | " '--bitmaps' copies all top-level persistent bitmaps to destination\n" |
2d9187bc PL |
202 | " '-m' specifies how many coroutines work in parallel during the convert\n" |
203 | " process (defaults to 8)\n" | |
204 | " '-W' allow to write to the target out of order rather than sequential\n" | |
205 | "\n" | |
3f020d70 | 206 | "Parameters to snapshot subcommand:\n" |
207 | " 'snapshot' is the name of the snapshot to create, apply or delete\n" | |
208 | " '-a' applies a snapshot (revert disk to saved state)\n" | |
209 | " '-c' creates a snapshot\n" | |
210 | " '-d' deletes a snapshot\n" | |
d14ed18c MR |
211 | " '-l' lists all snapshots in the given image\n" |
212 | "\n" | |
213 | "Parameters to compare subcommand:\n" | |
214 | " '-f' first image format\n" | |
215 | " '-F' second image format\n" | |
86ce1f6e RS |
216 | " '-s' run in Strict mode - fail on different image size or sector allocation\n" |
217 | "\n" | |
218 | "Parameters to dd subcommand:\n" | |
219 | " 'bs=BYTES' read and write up to BYTES bytes at a time " | |
220 | "(default: 512)\n" | |
221 | " 'count=N' copy only N input blocks\n" | |
222 | " 'if=FILE' read from FILE\n" | |
f7c15533 RS |
223 | " 'of=FILE' write to FILE\n" |
224 | " 'skip=N' skip N bs-sized blocks at the start of input\n"; | |
e00291c0 PB |
225 | |
226 | printf("%s\nSupported formats:", help_msg); | |
9ac404c5 | 227 | bdrv_iterate_format(format_print, NULL, false); |
f5048cb7 | 228 | printf("\n\n" QEMU_HELP_BOTTOM "\n"); |
ac1307ab | 229 | exit(EXIT_SUCCESS); |
ea2384d3 FB |
230 | } |
231 | ||
80c710cb MA |
232 | /* |
233 | * Is @optarg safe for accumulate_options()? | |
234 | * It is when multiple of them can be joined together separated by ','. | |
235 | * To make that work, @optarg must not start with ',' (or else a | |
236 | * separating ',' preceding it gets escaped), and it must not end with | |
237 | * an odd number of ',' (or else a separating ',' following it gets | |
f62514b3 MA |
238 | * escaped), or be empty (or else a separating ',' preceding it can |
239 | * escape a separating ',' following it). | |
240 | * | |
80c710cb MA |
241 | */ |
242 | static bool is_valid_option_list(const char *optarg) | |
243 | { | |
244 | size_t len = strlen(optarg); | |
245 | size_t i; | |
246 | ||
f62514b3 | 247 | if (!optarg[0] || optarg[0] == ',') { |
80c710cb MA |
248 | return false; |
249 | } | |
250 | ||
251 | for (i = len; i > 0 && optarg[i - 1] == ','; i--) { | |
252 | } | |
253 | if ((len - i) % 2) { | |
254 | return false; | |
255 | } | |
256 | ||
257 | return true; | |
c6e5cdfd KW |
258 | } |
259 | ||
6d2b5cba MA |
260 | static int accumulate_options(char **options, char *optarg) |
261 | { | |
262 | char *new_options; | |
263 | ||
264 | if (!is_valid_option_list(optarg)) { | |
265 | error_report("Invalid option list: %s", optarg); | |
266 | return -1; | |
267 | } | |
268 | ||
269 | if (!*options) { | |
270 | *options = g_strdup(optarg); | |
271 | } else { | |
272 | new_options = g_strdup_printf("%s,%s", *options, optarg); | |
273 | g_free(*options); | |
274 | *options = new_options; | |
275 | } | |
276 | return 0; | |
277 | } | |
278 | ||
eb769f74 DB |
279 | static QemuOptsList qemu_source_opts = { |
280 | .name = "source", | |
281 | .implied_opt_name = "file", | |
282 | .head = QTAILQ_HEAD_INITIALIZER(qemu_source_opts.head), | |
283 | .desc = { | |
284 | { } | |
285 | }, | |
286 | }; | |
287 | ||
9edc6313 | 288 | static int G_GNUC_PRINTF(2, 3) qprintf(bool quiet, const char *fmt, ...) |
f382d43a MR |
289 | { |
290 | int ret = 0; | |
291 | if (!quiet) { | |
292 | va_list args; | |
293 | va_start(args, fmt); | |
294 | ret = vprintf(fmt, args); | |
295 | va_end(args); | |
296 | } | |
297 | return ret; | |
298 | } | |
299 | ||
ea2384d3 | 300 | |
4ac8aacd JS |
301 | static int print_block_option_help(const char *filename, const char *fmt) |
302 | { | |
303 | BlockDriver *drv, *proto_drv; | |
83d0521a | 304 | QemuOptsList *create_opts = NULL; |
b65a5e12 | 305 | Error *local_err = NULL; |
4ac8aacd JS |
306 | |
307 | /* Find driver and parse its options */ | |
308 | drv = bdrv_find_format(fmt); | |
309 | if (!drv) { | |
15654a6d | 310 | error_report("Unknown file format '%s'", fmt); |
4ac8aacd JS |
311 | return 1; |
312 | } | |
313 | ||
d402b6a2 HR |
314 | if (!drv->create_opts) { |
315 | error_report("Format driver '%s' does not support image creation", fmt); | |
316 | return 1; | |
317 | } | |
318 | ||
c282e1fd | 319 | create_opts = qemu_opts_append(create_opts, drv->create_opts); |
a283cb6e | 320 | if (filename) { |
b65a5e12 | 321 | proto_drv = bdrv_find_protocol(filename, true, &local_err); |
a283cb6e | 322 | if (!proto_drv) { |
2867ce4a | 323 | error_report_err(local_err); |
83d0521a | 324 | qemu_opts_free(create_opts); |
a283cb6e KW |
325 | return 1; |
326 | } | |
d402b6a2 | 327 | if (!proto_drv->create_opts) { |
f0998879 | 328 | error_report("Protocol driver '%s' does not support image creation", |
d402b6a2 | 329 | proto_drv->format_name); |
3ecd5a4f | 330 | qemu_opts_free(create_opts); |
d402b6a2 HR |
331 | return 1; |
332 | } | |
c282e1fd | 333 | create_opts = qemu_opts_append(create_opts, proto_drv->create_opts); |
a283cb6e KW |
334 | } |
335 | ||
f4619af0 HR |
336 | if (filename) { |
337 | printf("Supported options:\n"); | |
338 | } else { | |
339 | printf("Supported %s options:\n", fmt); | |
340 | } | |
63898712 | 341 | qemu_opts_print_help(create_opts, false); |
83d0521a | 342 | qemu_opts_free(create_opts); |
f4619af0 HR |
343 | |
344 | if (!filename) { | |
345 | printf("\n" | |
346 | "The protocol level may support further options.\n" | |
347 | "Specify the target filename to include those options.\n"); | |
348 | } | |
349 | ||
4ac8aacd JS |
350 | return 0; |
351 | } | |
352 | ||
eb769f74 | 353 | |
efaa7c4e | 354 | static BlockBackend *img_open_opts(const char *optstr, |
ce099547 | 355 | QemuOpts *opts, int flags, bool writethrough, |
335e9937 | 356 | bool quiet, bool force_share) |
eb769f74 DB |
357 | { |
358 | QDict *options; | |
359 | Error *local_err = NULL; | |
360 | BlockBackend *blk; | |
361 | options = qemu_opts_to_qdict(opts, NULL); | |
335e9937 FZ |
362 | if (force_share) { |
363 | if (qdict_haskey(options, BDRV_OPT_FORCE_SHARE) | |
4615f878 | 364 | && strcmp(qdict_get_str(options, BDRV_OPT_FORCE_SHARE), "on")) { |
335e9937 | 365 | error_report("--force-share/-U conflicts with image options"); |
cb3e7f08 | 366 | qobject_unref(options); |
335e9937 FZ |
367 | return NULL; |
368 | } | |
4615f878 | 369 | qdict_put_str(options, BDRV_OPT_FORCE_SHARE, "on"); |
335e9937 | 370 | } |
efaa7c4e | 371 | blk = blk_new_open(NULL, NULL, options, flags, &local_err); |
eb769f74 | 372 | if (!blk) { |
143605a2 | 373 | error_reportf_err(local_err, "Could not open '%s': ", optstr); |
eb769f74 DB |
374 | return NULL; |
375 | } | |
ce099547 | 376 | blk_set_enable_write_cache(blk, !writethrough); |
eb769f74 | 377 | |
eb769f74 DB |
378 | return blk; |
379 | } | |
380 | ||
efaa7c4e | 381 | static BlockBackend *img_open_file(const char *filename, |
29cf9336 | 382 | QDict *options, |
eb769f74 | 383 | const char *fmt, int flags, |
335e9937 FZ |
384 | bool writethrough, bool quiet, |
385 | bool force_share) | |
eb769f74 DB |
386 | { |
387 | BlockBackend *blk; | |
34b5d2c6 | 388 | Error *local_err = NULL; |
ad717139 | 389 | |
29cf9336 DB |
390 | if (!options) { |
391 | options = qdict_new(); | |
392 | } | |
75c23805 | 393 | if (fmt) { |
46f5ac20 | 394 | qdict_put_str(options, "driver", fmt); |
75c23805 | 395 | } |
b9eaf9ec | 396 | |
335e9937 | 397 | if (force_share) { |
579cf1d1 | 398 | qdict_put_bool(options, BDRV_OPT_FORCE_SHARE, true); |
335e9937 | 399 | } |
efaa7c4e | 400 | blk = blk_new_open(filename, NULL, options, flags, &local_err); |
5bd31326 | 401 | if (!blk) { |
c29b77f9 | 402 | error_reportf_err(local_err, "Could not open '%s': ", filename); |
eb769f74 | 403 | return NULL; |
75c23805 | 404 | } |
ce099547 | 405 | blk_set_enable_write_cache(blk, !writethrough); |
b9eaf9ec | 406 | |
eb769f74 DB |
407 | return blk; |
408 | } | |
409 | ||
410 | ||
29cf9336 DB |
411 | static int img_add_key_secrets(void *opaque, |
412 | const char *name, const char *value, | |
413 | Error **errp) | |
414 | { | |
415 | QDict *options = opaque; | |
416 | ||
417 | if (g_str_has_suffix(name, "key-secret")) { | |
187f47e9 | 418 | qdict_put_str(options, name, value); |
29cf9336 DB |
419 | } |
420 | ||
421 | return 0; | |
422 | } | |
423 | ||
29cf9336 | 424 | |
efaa7c4e | 425 | static BlockBackend *img_open(bool image_opts, |
eb769f74 | 426 | const char *filename, |
ce099547 | 427 | const char *fmt, int flags, bool writethrough, |
335e9937 | 428 | bool quiet, bool force_share) |
eb769f74 DB |
429 | { |
430 | BlockBackend *blk; | |
431 | if (image_opts) { | |
432 | QemuOpts *opts; | |
433 | if (fmt) { | |
434 | error_report("--image-opts and --format are mutually exclusive"); | |
435 | return NULL; | |
436 | } | |
437 | opts = qemu_opts_parse_noisily(qemu_find_opts("source"), | |
438 | filename, true); | |
439 | if (!opts) { | |
440 | return NULL; | |
441 | } | |
335e9937 FZ |
442 | blk = img_open_opts(filename, opts, flags, writethrough, quiet, |
443 | force_share); | |
eb769f74 | 444 | } else { |
29cf9336 | 445 | blk = img_open_file(filename, NULL, fmt, flags, writethrough, quiet, |
335e9937 | 446 | force_share); |
75c23805 | 447 | } |
7e7d56d9 | 448 | return blk; |
75c23805 FB |
449 | } |
450 | ||
eb769f74 | 451 | |
83d0521a | 452 | static int add_old_style_options(const char *fmt, QemuOpts *opts, |
eec77d9e JS |
453 | const char *base_filename, |
454 | const char *base_fmt) | |
efa84d43 | 455 | { |
efa84d43 | 456 | if (base_filename) { |
235e59cf | 457 | if (!qemu_opt_set(opts, BLOCK_OPT_BACKING_FILE, base_filename, |
9e194e06 | 458 | NULL)) { |
15654a6d JS |
459 | error_report("Backing file not supported for file format '%s'", |
460 | fmt); | |
c2abccec | 461 | return -1; |
efa84d43 KW |
462 | } |
463 | } | |
464 | if (base_fmt) { | |
9e194e06 | 465 | if (!qemu_opt_set(opts, BLOCK_OPT_BACKING_FMT, base_fmt, NULL)) { |
15654a6d JS |
466 | error_report("Backing file format not supported for file " |
467 | "format '%s'", fmt); | |
c2abccec | 468 | return -1; |
efa84d43 KW |
469 | } |
470 | } | |
c2abccec | 471 | return 0; |
efa84d43 KW |
472 | } |
473 | ||
43d589b0 EM |
474 | static int64_t cvtnum_full(const char *name, const char *value, int64_t min, |
475 | int64_t max) | |
606caa0a | 476 | { |
f17fd4fd | 477 | int err; |
43d589b0 EM |
478 | uint64_t res; |
479 | ||
480 | err = qemu_strtosz(value, NULL, &res); | |
481 | if (err < 0 && err != -ERANGE) { | |
482 | error_report("Invalid %s specified. You may use " | |
483 | "k, M, G, T, P or E suffixes for", name); | |
484 | error_report("kilobytes, megabytes, gigabytes, terabytes, " | |
485 | "petabytes and exabytes."); | |
f17fd4fd MA |
486 | return err; |
487 | } | |
43d589b0 EM |
488 | if (err == -ERANGE || res > max || res < min) { |
489 | error_report("Invalid %s specified. Must be between %" PRId64 | |
490 | " and %" PRId64 ".", name, min, max); | |
f46bfdbf MA |
491 | return -ERANGE; |
492 | } | |
43d589b0 EM |
493 | return res; |
494 | } | |
495 | ||
496 | static int64_t cvtnum(const char *name, const char *value) | |
497 | { | |
498 | return cvtnum_full(name, value, 0, INT64_MAX); | |
606caa0a MA |
499 | } |
500 | ||
ea2384d3 FB |
501 | static int img_create(int argc, char **argv) |
502 | { | |
a9300911 | 503 | int c; |
1da7cfbd | 504 | uint64_t img_size = -1; |
ea2384d3 | 505 | const char *fmt = "raw"; |
9230eaf6 | 506 | const char *base_fmt = NULL; |
ea2384d3 FB |
507 | const char *filename; |
508 | const char *base_filename = NULL; | |
9ea2ea71 | 509 | char *options = NULL; |
9b37525a | 510 | Error *local_err = NULL; |
f382d43a | 511 | bool quiet = false; |
6e6e55f5 | 512 | int flags = 0; |
3b46e624 | 513 | |
ea2384d3 | 514 | for(;;) { |
3babeb15 DB |
515 | static const struct option long_options[] = { |
516 | {"help", no_argument, 0, 'h'}, | |
517 | {"object", required_argument, 0, OPTION_OBJECT}, | |
518 | {0, 0, 0, 0} | |
519 | }; | |
6e6e55f5 | 520 | c = getopt_long(argc, argv, ":F:b:f:ho:qu", |
3babeb15 | 521 | long_options, NULL); |
b8fb60da | 522 | if (c == -1) { |
ea2384d3 | 523 | break; |
b8fb60da | 524 | } |
ea2384d3 | 525 | switch(c) { |
c9192973 SH |
526 | case ':': |
527 | missing_argument(argv[optind - 1]); | |
528 | break; | |
ef87394c | 529 | case '?': |
c9192973 SH |
530 | unrecognized_option(argv[optind - 1]); |
531 | break; | |
ea2384d3 FB |
532 | case 'h': |
533 | help(); | |
534 | break; | |
9230eaf6 AL |
535 | case 'F': |
536 | base_fmt = optarg; | |
537 | break; | |
ea2384d3 FB |
538 | case 'b': |
539 | base_filename = optarg; | |
540 | break; | |
541 | case 'f': | |
542 | fmt = optarg; | |
543 | break; | |
9ea2ea71 | 544 | case 'o': |
6d2b5cba | 545 | if (accumulate_options(&options, optarg) < 0) { |
77386bf6 KW |
546 | goto fail; |
547 | } | |
9ea2ea71 | 548 | break; |
f382d43a MR |
549 | case 'q': |
550 | quiet = true; | |
551 | break; | |
6e6e55f5 JS |
552 | case 'u': |
553 | flags |= BDRV_O_NO_BACKING; | |
554 | break; | |
99b1e646 KW |
555 | case OPTION_OBJECT: |
556 | user_creatable_process_cmdline(optarg); | |
557 | break; | |
ea2384d3 FB |
558 | } |
559 | } | |
9230eaf6 | 560 | |
b50cbabc | 561 | /* Get the filename */ |
a283cb6e KW |
562 | filename = (optind < argc) ? argv[optind] : NULL; |
563 | if (options && has_help_option(options)) { | |
564 | g_free(options); | |
565 | return print_block_option_help(filename, fmt); | |
566 | } | |
567 | ||
b8fb60da | 568 | if (optind >= argc) { |
ac1307ab | 569 | error_exit("Expecting image file name"); |
b8fb60da | 570 | } |
a283cb6e | 571 | optind++; |
b50cbabc | 572 | |
1da7cfbd JS |
573 | /* Get image size, if specified */ |
574 | if (optind < argc) { | |
70b4f4bb | 575 | int64_t sval; |
606caa0a | 576 | |
43d589b0 | 577 | sval = cvtnum("image size", argv[optind++]); |
606caa0a | 578 | if (sval < 0) { |
77386bf6 | 579 | goto fail; |
1da7cfbd JS |
580 | } |
581 | img_size = (uint64_t)sval; | |
582 | } | |
fc11eb26 | 583 | if (optind != argc) { |
ac1307ab | 584 | error_exit("Unexpected argument: %s", argv[optind]); |
fc11eb26 | 585 | } |
1da7cfbd | 586 | |
9b37525a | 587 | bdrv_img_create(filename, fmt, base_filename, base_fmt, |
6e6e55f5 | 588 | options, img_size, flags, quiet, &local_err); |
84d18f06 | 589 | if (local_err) { |
c29b77f9 | 590 | error_reportf_err(local_err, "%s: ", filename); |
77386bf6 | 591 | goto fail; |
c2abccec | 592 | } |
a9300911 | 593 | |
77386bf6 | 594 | g_free(options); |
ea2384d3 | 595 | return 0; |
77386bf6 KW |
596 | |
597 | fail: | |
598 | g_free(options); | |
599 | return 1; | |
ea2384d3 FB |
600 | } |
601 | ||
f382d43a | 602 | static void dump_json_image_check(ImageCheck *check, bool quiet) |
8599ea4c | 603 | { |
eab3a467 | 604 | GString *str; |
8599ea4c | 605 | QObject *obj; |
7d5e199a | 606 | Visitor *v = qobject_output_visitor_new(&obj); |
3b098d56 EB |
607 | |
608 | visit_type_ImageCheck(v, NULL, &check, &error_abort); | |
609 | visit_complete(v, &obj); | |
6589f459 | 610 | str = qobject_to_json_pretty(obj, true); |
8599ea4c | 611 | assert(str != NULL); |
eab3a467 | 612 | qprintf(quiet, "%s\n", str->str); |
cb3e7f08 | 613 | qobject_unref(obj); |
3b098d56 | 614 | visit_free(v); |
eab3a467 | 615 | g_string_free(str, true); |
8599ea4c FS |
616 | } |
617 | ||
f382d43a | 618 | static void dump_human_image_check(ImageCheck *check, bool quiet) |
8599ea4c FS |
619 | { |
620 | if (!(check->corruptions || check->leaks || check->check_errors)) { | |
f382d43a | 621 | qprintf(quiet, "No errors were found on the image.\n"); |
8599ea4c FS |
622 | } else { |
623 | if (check->corruptions) { | |
f382d43a MR |
624 | qprintf(quiet, "\n%" PRId64 " errors were found on the image.\n" |
625 | "Data may be corrupted, or further writes to the image " | |
626 | "may corrupt it.\n", | |
627 | check->corruptions); | |
8599ea4c FS |
628 | } |
629 | ||
630 | if (check->leaks) { | |
f382d43a MR |
631 | qprintf(quiet, |
632 | "\n%" PRId64 " leaked clusters were found on the image.\n" | |
633 | "This means waste of disk space, but no harm to data.\n", | |
634 | check->leaks); | |
8599ea4c FS |
635 | } |
636 | ||
637 | if (check->check_errors) { | |
f382d43a MR |
638 | qprintf(quiet, |
639 | "\n%" PRId64 | |
640 | " internal errors have occurred during the check.\n", | |
641 | check->check_errors); | |
8599ea4c FS |
642 | } |
643 | } | |
644 | ||
645 | if (check->total_clusters != 0 && check->allocated_clusters != 0) { | |
f382d43a MR |
646 | qprintf(quiet, "%" PRId64 "/%" PRId64 " = %0.2f%% allocated, " |
647 | "%0.2f%% fragmented, %0.2f%% compressed clusters\n", | |
648 | check->allocated_clusters, check->total_clusters, | |
649 | check->allocated_clusters * 100.0 / check->total_clusters, | |
650 | check->fragmented_clusters * 100.0 / check->allocated_clusters, | |
651 | check->compressed_clusters * 100.0 / | |
652 | check->allocated_clusters); | |
8599ea4c FS |
653 | } |
654 | ||
655 | if (check->image_end_offset) { | |
f382d43a MR |
656 | qprintf(quiet, |
657 | "Image end offset: %" PRId64 "\n", check->image_end_offset); | |
8599ea4c FS |
658 | } |
659 | } | |
660 | ||
661 | static int collect_image_check(BlockDriverState *bs, | |
662 | ImageCheck *check, | |
663 | const char *filename, | |
664 | const char *fmt, | |
665 | int fix) | |
666 | { | |
667 | int ret; | |
668 | BdrvCheckResult result; | |
669 | ||
670 | ret = bdrv_check(bs, &result, fix); | |
671 | if (ret < 0) { | |
672 | return ret; | |
673 | } | |
674 | ||
675 | check->filename = g_strdup(filename); | |
676 | check->format = g_strdup(bdrv_get_format_name(bs)); | |
677 | check->check_errors = result.check_errors; | |
678 | check->corruptions = result.corruptions; | |
679 | check->has_corruptions = result.corruptions != 0; | |
680 | check->leaks = result.leaks; | |
681 | check->has_leaks = result.leaks != 0; | |
682 | check->corruptions_fixed = result.corruptions_fixed; | |
1656324e | 683 | check->has_corruptions_fixed = result.corruptions_fixed != 0; |
8599ea4c | 684 | check->leaks_fixed = result.leaks_fixed; |
1656324e | 685 | check->has_leaks_fixed = result.leaks_fixed != 0; |
8599ea4c FS |
686 | check->image_end_offset = result.image_end_offset; |
687 | check->has_image_end_offset = result.image_end_offset != 0; | |
688 | check->total_clusters = result.bfi.total_clusters; | |
689 | check->has_total_clusters = result.bfi.total_clusters != 0; | |
690 | check->allocated_clusters = result.bfi.allocated_clusters; | |
691 | check->has_allocated_clusters = result.bfi.allocated_clusters != 0; | |
692 | check->fragmented_clusters = result.bfi.fragmented_clusters; | |
693 | check->has_fragmented_clusters = result.bfi.fragmented_clusters != 0; | |
e6439d78 SH |
694 | check->compressed_clusters = result.bfi.compressed_clusters; |
695 | check->has_compressed_clusters = result.bfi.compressed_clusters != 0; | |
8599ea4c FS |
696 | |
697 | return 0; | |
698 | } | |
699 | ||
e076f338 KW |
700 | /* |
701 | * Checks an image for consistency. Exit codes: | |
702 | * | |
d6635c4d HR |
703 | * 0 - Check completed, image is good |
704 | * 1 - Check not completed because of internal errors | |
705 | * 2 - Check completed, image is corrupted | |
706 | * 3 - Check completed, image has leaked clusters, but is good otherwise | |
707 | * 63 - Checks are not supported by the image format | |
e076f338 | 708 | */ |
1585969c AL |
709 | static int img_check(int argc, char **argv) |
710 | { | |
711 | int c, ret; | |
8599ea4c | 712 | OutputFormat output_format = OFORMAT_HUMAN; |
40055951 | 713 | const char *filename, *fmt, *output, *cache; |
26f54e9a | 714 | BlockBackend *blk; |
1585969c | 715 | BlockDriverState *bs; |
4534ff54 | 716 | int fix = 0; |
ce099547 KW |
717 | int flags = BDRV_O_CHECK; |
718 | bool writethrough; | |
7e7d56d9 | 719 | ImageCheck *check; |
f382d43a | 720 | bool quiet = false; |
eb769f74 | 721 | bool image_opts = false; |
335e9937 | 722 | bool force_share = false; |
1585969c AL |
723 | |
724 | fmt = NULL; | |
8599ea4c | 725 | output = NULL; |
40055951 | 726 | cache = BDRV_DEFAULT_CACHE; |
ce099547 | 727 | |
1585969c | 728 | for(;;) { |
8599ea4c FS |
729 | int option_index = 0; |
730 | static const struct option long_options[] = { | |
731 | {"help", no_argument, 0, 'h'}, | |
732 | {"format", required_argument, 0, 'f'}, | |
4fd6a984 | 733 | {"repair", required_argument, 0, 'r'}, |
8599ea4c | 734 | {"output", required_argument, 0, OPTION_OUTPUT}, |
3babeb15 | 735 | {"object", required_argument, 0, OPTION_OBJECT}, |
eb769f74 | 736 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 737 | {"force-share", no_argument, 0, 'U'}, |
8599ea4c FS |
738 | {0, 0, 0, 0} |
739 | }; | |
335e9937 | 740 | c = getopt_long(argc, argv, ":hf:r:T:qU", |
8599ea4c | 741 | long_options, &option_index); |
b8fb60da | 742 | if (c == -1) { |
1585969c | 743 | break; |
b8fb60da | 744 | } |
1585969c | 745 | switch(c) { |
c9192973 SH |
746 | case ':': |
747 | missing_argument(argv[optind - 1]); | |
748 | break; | |
ef87394c | 749 | case '?': |
c9192973 SH |
750 | unrecognized_option(argv[optind - 1]); |
751 | break; | |
1585969c AL |
752 | case 'h': |
753 | help(); | |
754 | break; | |
755 | case 'f': | |
756 | fmt = optarg; | |
757 | break; | |
4534ff54 KW |
758 | case 'r': |
759 | flags |= BDRV_O_RDWR; | |
760 | ||
761 | if (!strcmp(optarg, "leaks")) { | |
762 | fix = BDRV_FIX_LEAKS; | |
763 | } else if (!strcmp(optarg, "all")) { | |
764 | fix = BDRV_FIX_LEAKS | BDRV_FIX_ERRORS; | |
765 | } else { | |
ac1307ab FZ |
766 | error_exit("Unknown option value for -r " |
767 | "(expecting 'leaks' or 'all'): %s", optarg); | |
4534ff54 KW |
768 | } |
769 | break; | |
8599ea4c FS |
770 | case OPTION_OUTPUT: |
771 | output = optarg; | |
772 | break; | |
40055951 HR |
773 | case 'T': |
774 | cache = optarg; | |
775 | break; | |
f382d43a MR |
776 | case 'q': |
777 | quiet = true; | |
778 | break; | |
335e9937 FZ |
779 | case 'U': |
780 | force_share = true; | |
781 | break; | |
99b1e646 KW |
782 | case OPTION_OBJECT: |
783 | user_creatable_process_cmdline(optarg); | |
784 | break; | |
eb769f74 DB |
785 | case OPTION_IMAGE_OPTS: |
786 | image_opts = true; | |
787 | break; | |
1585969c AL |
788 | } |
789 | } | |
fc11eb26 | 790 | if (optind != argc - 1) { |
ac1307ab | 791 | error_exit("Expecting one image file name"); |
b8fb60da | 792 | } |
1585969c AL |
793 | filename = argv[optind++]; |
794 | ||
8599ea4c FS |
795 | if (output && !strcmp(output, "json")) { |
796 | output_format = OFORMAT_JSON; | |
797 | } else if (output && !strcmp(output, "human")) { | |
798 | output_format = OFORMAT_HUMAN; | |
799 | } else if (output) { | |
800 | error_report("--output must be used with human or json as argument."); | |
801 | return 1; | |
802 | } | |
803 | ||
ce099547 | 804 | ret = bdrv_parse_cache_mode(cache, &flags, &writethrough); |
40055951 HR |
805 | if (ret < 0) { |
806 | error_report("Invalid source cache option: %s", cache); | |
807 | return 1; | |
808 | } | |
809 | ||
335e9937 FZ |
810 | blk = img_open(image_opts, filename, fmt, flags, writethrough, quiet, |
811 | force_share); | |
7e7d56d9 MA |
812 | if (!blk) { |
813 | return 1; | |
c2abccec | 814 | } |
7e7d56d9 | 815 | bs = blk_bs(blk); |
8599ea4c FS |
816 | |
817 | check = g_new0(ImageCheck, 1); | |
818 | ret = collect_image_check(bs, check, filename, fmt, fix); | |
e076f338 KW |
819 | |
820 | if (ret == -ENOTSUP) { | |
55d492d7 | 821 | error_report("This image format does not support checks"); |
fefddf95 | 822 | ret = 63; |
8599ea4c | 823 | goto fail; |
e076f338 KW |
824 | } |
825 | ||
8599ea4c FS |
826 | if (check->corruptions_fixed || check->leaks_fixed) { |
827 | int corruptions_fixed, leaks_fixed; | |
1656324e | 828 | bool has_leaks_fixed, has_corruptions_fixed; |
ccf34716 | 829 | |
8599ea4c | 830 | leaks_fixed = check->leaks_fixed; |
1656324e | 831 | has_leaks_fixed = check->has_leaks_fixed; |
8599ea4c | 832 | corruptions_fixed = check->corruptions_fixed; |
1656324e | 833 | has_corruptions_fixed = check->has_corruptions_fixed; |
e076f338 | 834 | |
8599ea4c | 835 | if (output_format == OFORMAT_HUMAN) { |
f382d43a MR |
836 | qprintf(quiet, |
837 | "The following inconsistencies were found and repaired:\n\n" | |
838 | " %" PRId64 " leaked clusters\n" | |
839 | " %" PRId64 " corruptions\n\n" | |
840 | "Double checking the fixed image now...\n", | |
841 | check->leaks_fixed, | |
842 | check->corruptions_fixed); | |
e076f338 KW |
843 | } |
844 | ||
fc124ea1 PN |
845 | qapi_free_ImageCheck(check); |
846 | check = g_new0(ImageCheck, 1); | |
8599ea4c | 847 | ret = collect_image_check(bs, check, filename, fmt, 0); |
1585969c | 848 | |
8599ea4c | 849 | check->leaks_fixed = leaks_fixed; |
1656324e | 850 | check->has_leaks_fixed = has_leaks_fixed; |
8599ea4c | 851 | check->corruptions_fixed = corruptions_fixed; |
1656324e | 852 | check->has_corruptions_fixed = has_corruptions_fixed; |
f8111c24 DXW |
853 | } |
854 | ||
832390a5 HR |
855 | if (!ret) { |
856 | switch (output_format) { | |
857 | case OFORMAT_HUMAN: | |
858 | dump_human_image_check(check, quiet); | |
859 | break; | |
860 | case OFORMAT_JSON: | |
861 | dump_json_image_check(check, quiet); | |
862 | break; | |
863 | } | |
c6bb9ad1 FS |
864 | } |
865 | ||
8599ea4c | 866 | if (ret || check->check_errors) { |
832390a5 HR |
867 | if (ret) { |
868 | error_report("Check failed: %s", strerror(-ret)); | |
869 | } else { | |
870 | error_report("Check failed"); | |
871 | } | |
8599ea4c FS |
872 | ret = 1; |
873 | goto fail; | |
c2abccec | 874 | } |
e076f338 | 875 | |
8599ea4c FS |
876 | if (check->corruptions) { |
877 | ret = 2; | |
878 | } else if (check->leaks) { | |
879 | ret = 3; | |
e076f338 | 880 | } else { |
8599ea4c | 881 | ret = 0; |
e076f338 | 882 | } |
8599ea4c FS |
883 | |
884 | fail: | |
885 | qapi_free_ImageCheck(check); | |
26f54e9a | 886 | blk_unref(blk); |
8599ea4c | 887 | return ret; |
1585969c AL |
888 | } |
889 | ||
d4a3238a HR |
890 | typedef struct CommonBlockJobCBInfo { |
891 | BlockDriverState *bs; | |
892 | Error **errp; | |
893 | } CommonBlockJobCBInfo; | |
894 | ||
895 | static void common_block_job_cb(void *opaque, int ret) | |
896 | { | |
897 | CommonBlockJobCBInfo *cbi = opaque; | |
898 | ||
899 | if (ret < 0) { | |
900 | error_setg_errno(cbi->errp, -ret, "Block job failed"); | |
901 | } | |
d4a3238a HR |
902 | } |
903 | ||
904 | static void run_block_job(BlockJob *job, Error **errp) | |
905 | { | |
a7b4f8fc | 906 | uint64_t progress_current, progress_total; |
df9a3165 | 907 | AioContext *aio_context = block_job_get_aio_context(job); |
4172a003 | 908 | int ret = 0; |
d4a3238a | 909 | |
9e944cb4 | 910 | aio_context_acquire(aio_context); |
80fa2c75 | 911 | job_ref(&job->job); |
d4a3238a | 912 | do { |
30a5c887 | 913 | float progress = 0.0f; |
d4a3238a | 914 | aio_poll(aio_context, true); |
a7b4f8fc EGE |
915 | |
916 | progress_get_snapshot(&job->job.progress, &progress_current, | |
917 | &progress_total); | |
918 | if (progress_total) { | |
919 | progress = (float)progress_current / progress_total * 100.f; | |
30a5c887 KW |
920 | } |
921 | qemu_progress_print(progress, 0); | |
df956ae2 | 922 | } while (!job_is_ready(&job->job) && !job_is_completed(&job->job)); |
d4a3238a | 923 | |
dbe5e6c1 | 924 | if (!job_is_completed(&job->job)) { |
3d70ff53 | 925 | ret = job_complete_sync(&job->job, errp); |
4172a003 | 926 | } else { |
4ad35181 | 927 | ret = job->job.ret; |
4172a003 | 928 | } |
80fa2c75 | 929 | job_unref(&job->job); |
9e944cb4 | 930 | aio_context_release(aio_context); |
687fa1d8 | 931 | |
4172a003 SJ |
932 | /* publish completion progress only when success */ |
933 | if (!ret) { | |
934 | qemu_progress_print(100.f, 0); | |
935 | } | |
d4a3238a HR |
936 | } |
937 | ||
ea2384d3 FB |
938 | static int img_commit(int argc, char **argv) |
939 | { | |
661a0f71 | 940 | int c, ret, flags; |
1b22bffd | 941 | const char *filename, *fmt, *cache, *base; |
26f54e9a | 942 | BlockBackend *blk; |
d4a3238a | 943 | BlockDriverState *bs, *base_bs; |
4ef85a9c | 944 | BlockJob *job; |
687fa1d8 | 945 | bool progress = false, quiet = false, drop = false; |
ce099547 | 946 | bool writethrough; |
d4a3238a HR |
947 | Error *local_err = NULL; |
948 | CommonBlockJobCBInfo cbi; | |
eb769f74 | 949 | bool image_opts = false; |
9e944cb4 | 950 | AioContext *aio_context; |
a0441b66 | 951 | int64_t rate_limit = 0; |
ea2384d3 FB |
952 | |
953 | fmt = NULL; | |
661a0f71 | 954 | cache = BDRV_DEFAULT_CACHE; |
1b22bffd | 955 | base = NULL; |
ea2384d3 | 956 | for(;;) { |
3babeb15 DB |
957 | static const struct option long_options[] = { |
958 | {"help", no_argument, 0, 'h'}, | |
959 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 960 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
3babeb15 DB |
961 | {0, 0, 0, 0} |
962 | }; | |
a0441b66 | 963 | c = getopt_long(argc, argv, ":f:ht:b:dpqr:", |
3babeb15 | 964 | long_options, NULL); |
b8fb60da | 965 | if (c == -1) { |
ea2384d3 | 966 | break; |
b8fb60da | 967 | } |
ea2384d3 | 968 | switch(c) { |
c9192973 SH |
969 | case ':': |
970 | missing_argument(argv[optind - 1]); | |
971 | break; | |
ef87394c | 972 | case '?': |
c9192973 SH |
973 | unrecognized_option(argv[optind - 1]); |
974 | break; | |
ea2384d3 FB |
975 | case 'h': |
976 | help(); | |
977 | break; | |
978 | case 'f': | |
979 | fmt = optarg; | |
980 | break; | |
661a0f71 FS |
981 | case 't': |
982 | cache = optarg; | |
983 | break; | |
1b22bffd HR |
984 | case 'b': |
985 | base = optarg; | |
986 | /* -b implies -d */ | |
987 | drop = true; | |
988 | break; | |
9a86fe48 HR |
989 | case 'd': |
990 | drop = true; | |
991 | break; | |
687fa1d8 HR |
992 | case 'p': |
993 | progress = true; | |
994 | break; | |
f382d43a MR |
995 | case 'q': |
996 | quiet = true; | |
997 | break; | |
a0441b66 ZL |
998 | case 'r': |
999 | rate_limit = cvtnum("rate limit", optarg); | |
1000 | if (rate_limit < 0) { | |
1001 | return 1; | |
1002 | } | |
1003 | break; | |
99b1e646 KW |
1004 | case OPTION_OBJECT: |
1005 | user_creatable_process_cmdline(optarg); | |
1006 | break; | |
eb769f74 DB |
1007 | case OPTION_IMAGE_OPTS: |
1008 | image_opts = true; | |
1009 | break; | |
ea2384d3 FB |
1010 | } |
1011 | } | |
687fa1d8 HR |
1012 | |
1013 | /* Progress is not shown in Quiet mode */ | |
1014 | if (quiet) { | |
1015 | progress = false; | |
1016 | } | |
1017 | ||
fc11eb26 | 1018 | if (optind != argc - 1) { |
ac1307ab | 1019 | error_exit("Expecting one image file name"); |
b8fb60da | 1020 | } |
ea2384d3 FB |
1021 | filename = argv[optind++]; |
1022 | ||
9a86fe48 | 1023 | flags = BDRV_O_RDWR | BDRV_O_UNMAP; |
ce099547 | 1024 | ret = bdrv_parse_cache_mode(cache, &flags, &writethrough); |
661a0f71 FS |
1025 | if (ret < 0) { |
1026 | error_report("Invalid cache option: %s", cache); | |
a3981eb9 | 1027 | return 1; |
661a0f71 FS |
1028 | } |
1029 | ||
335e9937 FZ |
1030 | blk = img_open(image_opts, filename, fmt, flags, writethrough, quiet, |
1031 | false); | |
7e7d56d9 MA |
1032 | if (!blk) { |
1033 | return 1; | |
c2abccec | 1034 | } |
7e7d56d9 MA |
1035 | bs = blk_bs(blk); |
1036 | ||
687fa1d8 HR |
1037 | qemu_progress_init(progress, 1.f); |
1038 | qemu_progress_print(0.f, 100); | |
1039 | ||
1b22bffd HR |
1040 | if (base) { |
1041 | base_bs = bdrv_find_backing_image(bs, base); | |
1042 | if (!base_bs) { | |
6b33f3ae HR |
1043 | error_setg(&local_err, |
1044 | "Did not find '%s' in the backing chain of '%s'", | |
1045 | base, filename); | |
1b22bffd HR |
1046 | goto done; |
1047 | } | |
1048 | } else { | |
1049 | /* This is different from QMP, which by default uses the deepest file in | |
1050 | * the backing chain (i.e., the very base); however, the traditional | |
1051 | * behavior of qemu-img commit is using the immediate backing file. */ | |
4a2061e6 | 1052 | base_bs = bdrv_backing_chain_next(bs); |
1b22bffd HR |
1053 | if (!base_bs) { |
1054 | error_setg(&local_err, "Image does not have a backing file"); | |
1055 | goto done; | |
1056 | } | |
d4a3238a HR |
1057 | } |
1058 | ||
1059 | cbi = (CommonBlockJobCBInfo){ | |
1060 | .errp = &local_err, | |
1061 | .bs = bs, | |
1062 | }; | |
1063 | ||
9e944cb4 PB |
1064 | aio_context = bdrv_get_aio_context(bs); |
1065 | aio_context_acquire(aio_context); | |
a0441b66 | 1066 | commit_active_start("commit", bs, base_bs, JOB_DEFAULT, rate_limit, |
0db832f4 | 1067 | BLOCKDEV_ON_ERROR_REPORT, NULL, common_block_job_cb, |
78bbd910 | 1068 | &cbi, false, &local_err); |
9e944cb4 | 1069 | aio_context_release(aio_context); |
d4a3238a HR |
1070 | if (local_err) { |
1071 | goto done; | |
ea2384d3 FB |
1072 | } |
1073 | ||
3f09bfbc KW |
1074 | /* When the block job completes, the BlockBackend reference will point to |
1075 | * the old backing file. In order to avoid that the top image is already | |
1076 | * deleted, so we can still empty it afterwards, increment the reference | |
1077 | * counter here preemptively. */ | |
9a86fe48 | 1078 | if (!drop) { |
3f09bfbc | 1079 | bdrv_ref(bs); |
9a86fe48 HR |
1080 | } |
1081 | ||
4ef85a9c | 1082 | job = block_job_get("commit"); |
2e2db260 | 1083 | assert(job); |
4ef85a9c | 1084 | run_block_job(job, &local_err); |
9a86fe48 HR |
1085 | if (local_err) { |
1086 | goto unref_backing; | |
1087 | } | |
1088 | ||
2d97fde4 HR |
1089 | if (!drop) { |
1090 | BlockBackend *old_backing_blk; | |
1091 | ||
1092 | old_backing_blk = blk_new_with_bs(bs, BLK_PERM_WRITE, BLK_PERM_ALL, | |
1093 | &local_err); | |
1094 | if (!old_backing_blk) { | |
1095 | goto unref_backing; | |
1096 | } | |
1097 | ret = blk_make_empty(old_backing_blk, &local_err); | |
1098 | blk_unref(old_backing_blk); | |
1099 | if (ret == -ENOTSUP) { | |
1100 | error_free(local_err); | |
1101 | local_err = NULL; | |
1102 | } else if (ret < 0) { | |
9a86fe48 HR |
1103 | goto unref_backing; |
1104 | } | |
1105 | } | |
1106 | ||
1107 | unref_backing: | |
1108 | if (!drop) { | |
3f09bfbc | 1109 | bdrv_unref(bs); |
9a86fe48 | 1110 | } |
d4a3238a HR |
1111 | |
1112 | done: | |
687fa1d8 HR |
1113 | qemu_progress_end(); |
1114 | ||
26f54e9a | 1115 | blk_unref(blk); |
d4a3238a HR |
1116 | |
1117 | if (local_err) { | |
6936f299 | 1118 | error_report_err(local_err); |
c2abccec MK |
1119 | return 1; |
1120 | } | |
d4a3238a HR |
1121 | |
1122 | qprintf(quiet, "Image committed.\n"); | |
ea2384d3 FB |
1123 | return 0; |
1124 | } | |
1125 | ||
debb38a4 EB |
1126 | /* |
1127 | * Returns -1 if 'buf' contains only zeroes, otherwise the byte index | |
1128 | * of the first sector boundary within buf where the sector contains a | |
1129 | * non-zero byte. This function is robust to a buffer that is not | |
1130 | * sector-aligned. | |
1131 | */ | |
1132 | static int64_t find_nonzero(const uint8_t *buf, int64_t n) | |
1133 | { | |
1134 | int64_t i; | |
1135 | int64_t end = QEMU_ALIGN_DOWN(n, BDRV_SECTOR_SIZE); | |
1136 | ||
1137 | for (i = 0; i < end; i += BDRV_SECTOR_SIZE) { | |
1138 | if (!buffer_is_zero(buf + i, BDRV_SECTOR_SIZE)) { | |
1139 | return i; | |
1140 | } | |
1141 | } | |
1142 | if (i < n && !buffer_is_zero(buf + i, n - end)) { | |
1143 | return i; | |
1144 | } | |
1145 | return -1; | |
1146 | } | |
1147 | ||
f58c7b35 TS |
1148 | /* |
1149 | * Returns true iff the first sector pointed to by 'buf' contains at least | |
1150 | * a non-NUL byte. | |
1151 | * | |
1152 | * 'pnum' is set to the number of sectors (including and immediately following | |
1153 | * the first one) that are known to be in the same allocated/unallocated state. | |
8dcd3c9b | 1154 | * The function will try to align the end offset to alignment boundaries so |
e3a6e0da | 1155 | * that the request will at least end aligned and consecutive requests will |
8dcd3c9b | 1156 | * also start at an aligned offset. |
f58c7b35 | 1157 | */ |
8dcd3c9b PL |
1158 | static int is_allocated_sectors(const uint8_t *buf, int n, int *pnum, |
1159 | int64_t sector_num, int alignment) | |
ea2384d3 | 1160 | { |
1a6d39fd | 1161 | bool is_zero; |
8dcd3c9b | 1162 | int i, tail; |
ea2384d3 FB |
1163 | |
1164 | if (n <= 0) { | |
1165 | *pnum = 0; | |
1166 | return 0; | |
1167 | } | |
c075c42f | 1168 | is_zero = buffer_is_zero(buf, BDRV_SECTOR_SIZE); |
ea2384d3 | 1169 | for(i = 1; i < n; i++) { |
c075c42f YL |
1170 | buf += BDRV_SECTOR_SIZE; |
1171 | if (is_zero != buffer_is_zero(buf, BDRV_SECTOR_SIZE)) { | |
ea2384d3 | 1172 | break; |
1a6d39fd | 1173 | } |
ea2384d3 | 1174 | } |
8dcd3c9b | 1175 | |
96054c76 VSO |
1176 | if (i == n) { |
1177 | /* | |
1178 | * The whole buf is the same. | |
1179 | * No reason to split it into chunks, so return now. | |
1180 | */ | |
1181 | *pnum = i; | |
1182 | return !is_zero; | |
1183 | } | |
1184 | ||
8dcd3c9b PL |
1185 | tail = (sector_num + i) & (alignment - 1); |
1186 | if (tail) { | |
1187 | if (is_zero && i <= tail) { | |
96054c76 VSO |
1188 | /* |
1189 | * For sure next sector after i is data, and it will rewrite this | |
1190 | * tail anyway due to RMW. So, let's just write data now. | |
1191 | */ | |
8dcd3c9b PL |
1192 | is_zero = false; |
1193 | } | |
1194 | if (!is_zero) { | |
96054c76 | 1195 | /* If possible, align up end offset of allocated areas. */ |
8dcd3c9b PL |
1196 | i += alignment - tail; |
1197 | i = MIN(i, n); | |
1198 | } else { | |
96054c76 VSO |
1199 | /* |
1200 | * For sure next sector after i is data, and it will rewrite this | |
1201 | * tail anyway due to RMW. Better is avoid RMW and write zeroes up | |
1202 | * to aligned bound. | |
1203 | */ | |
8dcd3c9b PL |
1204 | i -= tail; |
1205 | } | |
1206 | } | |
ea2384d3 | 1207 | *pnum = i; |
1a6d39fd | 1208 | return !is_zero; |
ea2384d3 FB |
1209 | } |
1210 | ||
a22f123c KW |
1211 | /* |
1212 | * Like is_allocated_sectors, but if the buffer starts with a used sector, | |
1213 | * up to 'min' consecutive sectors containing zeros are ignored. This avoids | |
1214 | * breaking up write requests for only small sparse areas. | |
1215 | */ | |
1216 | static int is_allocated_sectors_min(const uint8_t *buf, int n, int *pnum, | |
8dcd3c9b | 1217 | int min, int64_t sector_num, int alignment) |
a22f123c KW |
1218 | { |
1219 | int ret; | |
1220 | int num_checked, num_used; | |
1221 | ||
1222 | if (n < min) { | |
1223 | min = n; | |
1224 | } | |
1225 | ||
8dcd3c9b | 1226 | ret = is_allocated_sectors(buf, n, pnum, sector_num, alignment); |
a22f123c KW |
1227 | if (!ret) { |
1228 | return ret; | |
1229 | } | |
1230 | ||
1231 | num_used = *pnum; | |
1232 | buf += BDRV_SECTOR_SIZE * *pnum; | |
1233 | n -= *pnum; | |
8dcd3c9b | 1234 | sector_num += *pnum; |
a22f123c KW |
1235 | num_checked = num_used; |
1236 | ||
1237 | while (n > 0) { | |
8dcd3c9b | 1238 | ret = is_allocated_sectors(buf, n, pnum, sector_num, alignment); |
a22f123c KW |
1239 | |
1240 | buf += BDRV_SECTOR_SIZE * *pnum; | |
1241 | n -= *pnum; | |
8dcd3c9b | 1242 | sector_num += *pnum; |
a22f123c KW |
1243 | num_checked += *pnum; |
1244 | if (ret) { | |
1245 | num_used = num_checked; | |
1246 | } else if (*pnum >= min) { | |
1247 | break; | |
1248 | } | |
1249 | } | |
1250 | ||
1251 | *pnum = num_used; | |
1252 | return 1; | |
1253 | } | |
1254 | ||
3e85c6fd | 1255 | /* |
dc61cd3b EB |
1256 | * Compares two buffers sector by sector. Returns 0 if the first |
1257 | * sector of each buffer matches, non-zero otherwise. | |
3e85c6fd | 1258 | * |
dc61cd3b EB |
1259 | * pnum is set to the sector-aligned size of the buffer prefix that |
1260 | * has the same matching status as the first sector. | |
3e85c6fd | 1261 | */ |
dc61cd3b EB |
1262 | static int compare_buffers(const uint8_t *buf1, const uint8_t *buf2, |
1263 | int64_t bytes, int64_t *pnum) | |
3e85c6fd | 1264 | { |
8c1ac475 | 1265 | bool res; |
dc61cd3b | 1266 | int64_t i = MIN(bytes, BDRV_SECTOR_SIZE); |
3e85c6fd | 1267 | |
dc61cd3b | 1268 | assert(bytes > 0); |
3e85c6fd | 1269 | |
dc61cd3b EB |
1270 | res = !!memcmp(buf1, buf2, i); |
1271 | while (i < bytes) { | |
1272 | int64_t len = MIN(bytes - i, BDRV_SECTOR_SIZE); | |
3e85c6fd | 1273 | |
dc61cd3b | 1274 | if (!!memcmp(buf1 + i, buf2 + i, len) != res) { |
3e85c6fd KW |
1275 | break; |
1276 | } | |
dc61cd3b | 1277 | i += len; |
3e85c6fd KW |
1278 | } |
1279 | ||
1280 | *pnum = i; | |
1281 | return res; | |
1282 | } | |
1283 | ||
97ede57a | 1284 | #define IO_BUF_SIZE (2 * MiB) |
ea2384d3 | 1285 | |
d14ed18c MR |
1286 | /* |
1287 | * Check if passed sectors are empty (not allocated or contain only 0 bytes) | |
1288 | * | |
0608e40e EB |
1289 | * Intended for use by 'qemu-img compare': Returns 0 in case sectors are |
1290 | * filled with 0, 1 if sectors contain non-zero data (this is a comparison | |
1291 | * failure), and 4 on error (the exit status for read errors), after emitting | |
1292 | * an error message. | |
d14ed18c | 1293 | * |
f1d3cd79 | 1294 | * @param blk: BlockBackend for the image |
c41508ed EB |
1295 | * @param offset: Starting offset to check |
1296 | * @param bytes: Number of bytes to check | |
d14ed18c MR |
1297 | * @param filename: Name of disk file we are checking (logging purpose) |
1298 | * @param buffer: Allocated buffer for storing read data | |
1299 | * @param quiet: Flag for quiet mode | |
1300 | */ | |
c41508ed EB |
1301 | static int check_empty_sectors(BlockBackend *blk, int64_t offset, |
1302 | int64_t bytes, const char *filename, | |
d14ed18c MR |
1303 | uint8_t *buffer, bool quiet) |
1304 | { | |
debb38a4 EB |
1305 | int ret = 0; |
1306 | int64_t idx; | |
1307 | ||
c41508ed | 1308 | ret = blk_pread(blk, offset, buffer, bytes); |
d14ed18c MR |
1309 | if (ret < 0) { |
1310 | error_report("Error while reading offset %" PRId64 " of %s: %s", | |
c41508ed | 1311 | offset, filename, strerror(-ret)); |
0608e40e | 1312 | return 4; |
d14ed18c | 1313 | } |
c41508ed | 1314 | idx = find_nonzero(buffer, bytes); |
debb38a4 | 1315 | if (idx >= 0) { |
d14ed18c | 1316 | qprintf(quiet, "Content mismatch at offset %" PRId64 "!\n", |
c41508ed | 1317 | offset + idx); |
d14ed18c MR |
1318 | return 1; |
1319 | } | |
1320 | ||
1321 | return 0; | |
1322 | } | |
1323 | ||
1324 | /* | |
1325 | * Compares two images. Exit codes: | |
1326 | * | |
99b1e646 | 1327 | * 0 - Images are identical or the requested help was printed |
d14ed18c MR |
1328 | * 1 - Images differ |
1329 | * >1 - Error occurred | |
1330 | */ | |
1331 | static int img_compare(int argc, char **argv) | |
1332 | { | |
40055951 | 1333 | const char *fmt1 = NULL, *fmt2 = NULL, *cache, *filename1, *filename2; |
26f54e9a | 1334 | BlockBackend *blk1, *blk2; |
d14ed18c | 1335 | BlockDriverState *bs1, *bs2; |
033d9fc2 | 1336 | int64_t total_size1, total_size2; |
d14ed18c | 1337 | uint8_t *buf1 = NULL, *buf2 = NULL; |
31826642 | 1338 | int64_t pnum1, pnum2; |
d14ed18c MR |
1339 | int allocated1, allocated2; |
1340 | int ret = 0; /* return value - 0 Ident, 1 Different, >1 Error */ | |
1341 | bool progress = false, quiet = false, strict = false; | |
40055951 | 1342 | int flags; |
ce099547 | 1343 | bool writethrough; |
033d9fc2 EB |
1344 | int64_t total_size; |
1345 | int64_t offset = 0; | |
1346 | int64_t chunk; | |
dc61cd3b | 1347 | int c; |
d14ed18c | 1348 | uint64_t progress_base; |
eb769f74 | 1349 | bool image_opts = false; |
335e9937 | 1350 | bool force_share = false; |
d14ed18c | 1351 | |
40055951 | 1352 | cache = BDRV_DEFAULT_CACHE; |
d14ed18c | 1353 | for (;;) { |
3babeb15 DB |
1354 | static const struct option long_options[] = { |
1355 | {"help", no_argument, 0, 'h'}, | |
1356 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 1357 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 1358 | {"force-share", no_argument, 0, 'U'}, |
3babeb15 DB |
1359 | {0, 0, 0, 0} |
1360 | }; | |
335e9937 | 1361 | c = getopt_long(argc, argv, ":hf:F:T:pqsU", |
3babeb15 | 1362 | long_options, NULL); |
d14ed18c MR |
1363 | if (c == -1) { |
1364 | break; | |
1365 | } | |
1366 | switch (c) { | |
c9192973 SH |
1367 | case ':': |
1368 | missing_argument(argv[optind - 1]); | |
1369 | break; | |
d14ed18c | 1370 | case '?': |
c9192973 SH |
1371 | unrecognized_option(argv[optind - 1]); |
1372 | break; | |
d14ed18c MR |
1373 | case 'h': |
1374 | help(); | |
1375 | break; | |
1376 | case 'f': | |
1377 | fmt1 = optarg; | |
1378 | break; | |
1379 | case 'F': | |
1380 | fmt2 = optarg; | |
1381 | break; | |
40055951 HR |
1382 | case 'T': |
1383 | cache = optarg; | |
1384 | break; | |
d14ed18c MR |
1385 | case 'p': |
1386 | progress = true; | |
1387 | break; | |
1388 | case 'q': | |
1389 | quiet = true; | |
1390 | break; | |
1391 | case 's': | |
1392 | strict = true; | |
1393 | break; | |
335e9937 FZ |
1394 | case 'U': |
1395 | force_share = true; | |
1396 | break; | |
99b1e646 KW |
1397 | case OPTION_OBJECT: |
1398 | { | |
1399 | Error *local_err = NULL; | |
1400 | ||
1401 | if (!user_creatable_add_from_str(optarg, &local_err)) { | |
1402 | if (local_err) { | |
1403 | error_report_err(local_err); | |
1404 | exit(2); | |
1405 | } else { | |
1406 | /* Help was printed */ | |
1407 | exit(EXIT_SUCCESS); | |
1408 | } | |
1409 | } | |
1410 | break; | |
3babeb15 | 1411 | } |
eb769f74 DB |
1412 | case OPTION_IMAGE_OPTS: |
1413 | image_opts = true; | |
1414 | break; | |
d14ed18c MR |
1415 | } |
1416 | } | |
1417 | ||
1418 | /* Progress is not shown in Quiet mode */ | |
1419 | if (quiet) { | |
1420 | progress = false; | |
1421 | } | |
1422 | ||
1423 | ||
fc11eb26 | 1424 | if (optind != argc - 2) { |
ac1307ab | 1425 | error_exit("Expecting two image file names"); |
d14ed18c MR |
1426 | } |
1427 | filename1 = argv[optind++]; | |
1428 | filename2 = argv[optind++]; | |
1429 | ||
cbda016d SH |
1430 | /* Initialize before goto out */ |
1431 | qemu_progress_init(progress, 2.0); | |
1432 | ||
ce099547 KW |
1433 | flags = 0; |
1434 | ret = bdrv_parse_cache_mode(cache, &flags, &writethrough); | |
40055951 HR |
1435 | if (ret < 0) { |
1436 | error_report("Invalid source cache option: %s", cache); | |
1437 | ret = 2; | |
1438 | goto out3; | |
1439 | } | |
1440 | ||
335e9937 FZ |
1441 | blk1 = img_open(image_opts, filename1, fmt1, flags, writethrough, quiet, |
1442 | force_share); | |
7e7d56d9 | 1443 | if (!blk1) { |
d14ed18c | 1444 | ret = 2; |
7e7d56d9 | 1445 | goto out3; |
d14ed18c MR |
1446 | } |
1447 | ||
335e9937 FZ |
1448 | blk2 = img_open(image_opts, filename2, fmt2, flags, writethrough, quiet, |
1449 | force_share); | |
7e7d56d9 | 1450 | if (!blk2) { |
d14ed18c | 1451 | ret = 2; |
7e7d56d9 | 1452 | goto out2; |
d14ed18c | 1453 | } |
eb769f74 | 1454 | bs1 = blk_bs(blk1); |
7e7d56d9 | 1455 | bs2 = blk_bs(blk2); |
d14ed18c | 1456 | |
f1d3cd79 HR |
1457 | buf1 = blk_blockalign(blk1, IO_BUF_SIZE); |
1458 | buf2 = blk_blockalign(blk2, IO_BUF_SIZE); | |
033d9fc2 EB |
1459 | total_size1 = blk_getlength(blk1); |
1460 | if (total_size1 < 0) { | |
52bf1e72 | 1461 | error_report("Can't get size of %s: %s", |
033d9fc2 | 1462 | filename1, strerror(-total_size1)); |
52bf1e72 MA |
1463 | ret = 4; |
1464 | goto out; | |
1465 | } | |
033d9fc2 EB |
1466 | total_size2 = blk_getlength(blk2); |
1467 | if (total_size2 < 0) { | |
52bf1e72 | 1468 | error_report("Can't get size of %s: %s", |
033d9fc2 | 1469 | filename2, strerror(-total_size2)); |
52bf1e72 MA |
1470 | ret = 4; |
1471 | goto out; | |
1472 | } | |
033d9fc2 EB |
1473 | total_size = MIN(total_size1, total_size2); |
1474 | progress_base = MAX(total_size1, total_size2); | |
d14ed18c MR |
1475 | |
1476 | qemu_progress_print(0, 100); | |
1477 | ||
033d9fc2 | 1478 | if (strict && total_size1 != total_size2) { |
d14ed18c MR |
1479 | ret = 1; |
1480 | qprintf(quiet, "Strict mode: Image size mismatch!\n"); | |
1481 | goto out; | |
1482 | } | |
1483 | ||
033d9fc2 | 1484 | while (offset < total_size) { |
31826642 | 1485 | int status1, status2; |
67a0fd2a | 1486 | |
033d9fc2 EB |
1487 | status1 = bdrv_block_status_above(bs1, NULL, offset, |
1488 | total_size1 - offset, &pnum1, NULL, | |
1489 | NULL); | |
25ad8e6e | 1490 | if (status1 < 0) { |
d14ed18c MR |
1491 | ret = 3; |
1492 | error_report("Sector allocation test failed for %s", filename1); | |
1493 | goto out; | |
1494 | } | |
25ad8e6e | 1495 | allocated1 = status1 & BDRV_BLOCK_ALLOCATED; |
d14ed18c | 1496 | |
033d9fc2 EB |
1497 | status2 = bdrv_block_status_above(bs2, NULL, offset, |
1498 | total_size2 - offset, &pnum2, NULL, | |
1499 | NULL); | |
25ad8e6e | 1500 | if (status2 < 0) { |
d14ed18c MR |
1501 | ret = 3; |
1502 | error_report("Sector allocation test failed for %s", filename2); | |
1503 | goto out; | |
1504 | } | |
25ad8e6e | 1505 | allocated2 = status2 & BDRV_BLOCK_ALLOCATED; |
7daddc61 EB |
1506 | |
1507 | assert(pnum1 && pnum2); | |
033d9fc2 | 1508 | chunk = MIN(pnum1, pnum2); |
d14ed18c | 1509 | |
25ad8e6e | 1510 | if (strict) { |
31826642 | 1511 | if (status1 != status2) { |
25ad8e6e FZ |
1512 | ret = 1; |
1513 | qprintf(quiet, "Strict mode: Offset %" PRId64 | |
033d9fc2 | 1514 | " block status mismatch!\n", offset); |
25ad8e6e FZ |
1515 | goto out; |
1516 | } | |
1517 | } | |
1518 | if ((status1 & BDRV_BLOCK_ZERO) && (status2 & BDRV_BLOCK_ZERO)) { | |
7daddc61 | 1519 | /* nothing to do */ |
25ad8e6e | 1520 | } else if (allocated1 == allocated2) { |
d14ed18c | 1521 | if (allocated1) { |
dc61cd3b EB |
1522 | int64_t pnum; |
1523 | ||
033d9fc2 EB |
1524 | chunk = MIN(chunk, IO_BUF_SIZE); |
1525 | ret = blk_pread(blk1, offset, buf1, chunk); | |
d14ed18c | 1526 | if (ret < 0) { |
033d9fc2 EB |
1527 | error_report("Error while reading offset %" PRId64 |
1528 | " of %s: %s", | |
1529 | offset, filename1, strerror(-ret)); | |
d14ed18c MR |
1530 | ret = 4; |
1531 | goto out; | |
1532 | } | |
033d9fc2 | 1533 | ret = blk_pread(blk2, offset, buf2, chunk); |
d14ed18c MR |
1534 | if (ret < 0) { |
1535 | error_report("Error while reading offset %" PRId64 | |
033d9fc2 EB |
1536 | " of %s: %s", |
1537 | offset, filename2, strerror(-ret)); | |
d14ed18c MR |
1538 | ret = 4; |
1539 | goto out; | |
1540 | } | |
033d9fc2 EB |
1541 | ret = compare_buffers(buf1, buf2, chunk, &pnum); |
1542 | if (ret || pnum != chunk) { | |
d14ed18c | 1543 | qprintf(quiet, "Content mismatch at offset %" PRId64 "!\n", |
033d9fc2 | 1544 | offset + (ret ? 0 : pnum)); |
36452f12 | 1545 | ret = 1; |
d14ed18c MR |
1546 | goto out; |
1547 | } | |
1548 | } | |
1549 | } else { | |
033d9fc2 | 1550 | chunk = MIN(chunk, IO_BUF_SIZE); |
d14ed18c | 1551 | if (allocated1) { |
033d9fc2 | 1552 | ret = check_empty_sectors(blk1, offset, chunk, |
d14ed18c MR |
1553 | filename1, buf1, quiet); |
1554 | } else { | |
033d9fc2 | 1555 | ret = check_empty_sectors(blk2, offset, chunk, |
d14ed18c MR |
1556 | filename2, buf1, quiet); |
1557 | } | |
1558 | if (ret) { | |
d14ed18c MR |
1559 | goto out; |
1560 | } | |
1561 | } | |
033d9fc2 EB |
1562 | offset += chunk; |
1563 | qemu_progress_print(((float) chunk / progress_base) * 100, 100); | |
d14ed18c MR |
1564 | } |
1565 | ||
033d9fc2 | 1566 | if (total_size1 != total_size2) { |
f1d3cd79 | 1567 | BlockBackend *blk_over; |
d14ed18c MR |
1568 | const char *filename_over; |
1569 | ||
1570 | qprintf(quiet, "Warning: Image size mismatch!\n"); | |
033d9fc2 | 1571 | if (total_size1 > total_size2) { |
f1d3cd79 | 1572 | blk_over = blk1; |
d14ed18c MR |
1573 | filename_over = filename1; |
1574 | } else { | |
f1d3cd79 | 1575 | blk_over = blk2; |
d14ed18c MR |
1576 | filename_over = filename2; |
1577 | } | |
1578 | ||
033d9fc2 EB |
1579 | while (offset < progress_base) { |
1580 | ret = bdrv_block_status_above(blk_bs(blk_over), NULL, offset, | |
1581 | progress_base - offset, &chunk, | |
1582 | NULL, NULL); | |
d14ed18c MR |
1583 | if (ret < 0) { |
1584 | ret = 3; | |
1585 | error_report("Sector allocation test failed for %s", | |
1586 | filename_over); | |
1587 | goto out; | |
1588 | ||
1589 | } | |
391cb1aa | 1590 | if (ret & BDRV_BLOCK_ALLOCATED && !(ret & BDRV_BLOCK_ZERO)) { |
033d9fc2 EB |
1591 | chunk = MIN(chunk, IO_BUF_SIZE); |
1592 | ret = check_empty_sectors(blk_over, offset, chunk, | |
d14ed18c MR |
1593 | filename_over, buf1, quiet); |
1594 | if (ret) { | |
d14ed18c MR |
1595 | goto out; |
1596 | } | |
1597 | } | |
033d9fc2 EB |
1598 | offset += chunk; |
1599 | qemu_progress_print(((float) chunk / progress_base) * 100, 100); | |
d14ed18c MR |
1600 | } |
1601 | } | |
1602 | ||
1603 | qprintf(quiet, "Images are identical.\n"); | |
1604 | ret = 0; | |
1605 | ||
1606 | out: | |
d14ed18c MR |
1607 | qemu_vfree(buf1); |
1608 | qemu_vfree(buf2); | |
26f54e9a | 1609 | blk_unref(blk2); |
d14ed18c | 1610 | out2: |
26f54e9a | 1611 | blk_unref(blk1); |
d14ed18c MR |
1612 | out3: |
1613 | qemu_progress_end(); | |
1614 | return ret; | |
1615 | } | |
1616 | ||
6c729dd8 EB |
1617 | /* Convenience wrapper around qmp_block_dirty_bitmap_merge */ |
1618 | static void do_dirty_bitmap_merge(const char *dst_node, const char *dst_name, | |
1619 | const char *src_node, const char *src_name, | |
1620 | Error **errp) | |
1621 | { | |
1622 | BlockDirtyBitmapMergeSource *merge_src; | |
54aa3de7 | 1623 | BlockDirtyBitmapMergeSourceList *list = NULL; |
6c729dd8 EB |
1624 | |
1625 | merge_src = g_new0(BlockDirtyBitmapMergeSource, 1); | |
1626 | merge_src->type = QTYPE_QDICT; | |
1627 | merge_src->u.external.node = g_strdup(src_node); | |
1628 | merge_src->u.external.name = g_strdup(src_name); | |
54aa3de7 | 1629 | QAPI_LIST_PREPEND(list, merge_src); |
6c729dd8 EB |
1630 | qmp_block_dirty_bitmap_merge(dst_node, dst_name, list, errp); |
1631 | qapi_free_BlockDirtyBitmapMergeSourceList(list); | |
1632 | } | |
1633 | ||
690c7301 KW |
1634 | enum ImgConvertBlockStatus { |
1635 | BLK_DATA, | |
1636 | BLK_ZERO, | |
1637 | BLK_BACKING_FILE, | |
1638 | }; | |
1639 | ||
2d9187bc | 1640 | #define MAX_COROUTINES 16 |
0c8c4895 | 1641 | #define CONVERT_THROTTLE_GROUP "img_convert" |
2d9187bc | 1642 | |
690c7301 KW |
1643 | typedef struct ImgConvertState { |
1644 | BlockBackend **src; | |
1645 | int64_t *src_sectors; | |
af8d43d3 | 1646 | int *src_alignment; |
2d9187bc | 1647 | int src_num; |
690c7301 KW |
1648 | int64_t total_sectors; |
1649 | int64_t allocated_sectors; | |
2d9187bc PL |
1650 | int64_t allocated_done; |
1651 | int64_t sector_num; | |
1652 | int64_t wr_offs; | |
690c7301 KW |
1653 | enum ImgConvertBlockStatus status; |
1654 | int64_t sector_next_status; | |
1655 | BlockBackend *target; | |
1656 | bool has_zero_init; | |
1657 | bool compressed; | |
4d7c487e | 1658 | bool target_is_new; |
690c7301 | 1659 | bool target_has_backing; |
351c8eff | 1660 | int64_t target_backing_sectors; /* negative if unknown */ |
2d9187bc | 1661 | bool wr_in_order; |
ee5306d0 | 1662 | bool copy_range; |
8eaac025 | 1663 | bool salvage; |
3d96cb91 | 1664 | bool quiet; |
690c7301 | 1665 | int min_sparse; |
8dcd3c9b | 1666 | int alignment; |
690c7301 KW |
1667 | size_t cluster_sectors; |
1668 | size_t buf_sectors; | |
9fd77f99 | 1669 | long num_coroutines; |
2d9187bc PL |
1670 | int running_coroutines; |
1671 | Coroutine *co[MAX_COROUTINES]; | |
1672 | int64_t wait_sector_num[MAX_COROUTINES]; | |
1673 | CoMutex lock; | |
1674 | int ret; | |
690c7301 KW |
1675 | } ImgConvertState; |
1676 | ||
2d9187bc PL |
1677 | static void convert_select_part(ImgConvertState *s, int64_t sector_num, |
1678 | int *src_cur, int64_t *src_cur_offset) | |
690c7301 | 1679 | { |
2d9187bc PL |
1680 | *src_cur = 0; |
1681 | *src_cur_offset = 0; | |
1682 | while (sector_num - *src_cur_offset >= s->src_sectors[*src_cur]) { | |
1683 | *src_cur_offset += s->src_sectors[*src_cur]; | |
1684 | (*src_cur)++; | |
1685 | assert(*src_cur < s->src_num); | |
690c7301 KW |
1686 | } |
1687 | } | |
1688 | ||
1689 | static int convert_iteration_sectors(ImgConvertState *s, int64_t sector_num) | |
1690 | { | |
31826642 EB |
1691 | int64_t src_cur_offset; |
1692 | int ret, n, src_cur; | |
351c8eff | 1693 | bool post_backing_zero = false; |
690c7301 | 1694 | |
2d9187bc | 1695 | convert_select_part(s, sector_num, &src_cur, &src_cur_offset); |
690c7301 KW |
1696 | |
1697 | assert(s->total_sectors > sector_num); | |
1698 | n = MIN(s->total_sectors - sector_num, BDRV_REQUEST_MAX_SECTORS); | |
1699 | ||
351c8eff HR |
1700 | if (s->target_backing_sectors >= 0) { |
1701 | if (sector_num >= s->target_backing_sectors) { | |
2253d86e | 1702 | post_backing_zero = true; |
351c8eff HR |
1703 | } else if (sector_num + n > s->target_backing_sectors) { |
1704 | /* Split requests around target_backing_sectors (because | |
1705 | * starting from there, zeros are handled differently) */ | |
1706 | n = s->target_backing_sectors - sector_num; | |
1707 | } | |
1708 | } | |
1709 | ||
690c7301 | 1710 | if (s->sector_next_status <= sector_num) { |
8eaac025 HR |
1711 | uint64_t offset = (sector_num - src_cur_offset) * BDRV_SECTOR_SIZE; |
1712 | int64_t count; | |
af8d43d3 | 1713 | int tail; |
4a2061e6 HR |
1714 | BlockDriverState *src_bs = blk_bs(s->src[src_cur]); |
1715 | BlockDriverState *base; | |
1716 | ||
1717 | if (s->target_has_backing) { | |
1718 | base = bdrv_cow_bs(bdrv_skip_filters(src_bs)); | |
1719 | } else { | |
1720 | base = NULL; | |
1721 | } | |
31826642 | 1722 | |
8eaac025 HR |
1723 | do { |
1724 | count = n * BDRV_SECTOR_SIZE; | |
1725 | ||
4a2061e6 HR |
1726 | ret = bdrv_block_status_above(src_bs, base, offset, count, &count, |
1727 | NULL, NULL); | |
8eaac025 HR |
1728 | |
1729 | if (ret < 0) { | |
1730 | if (s->salvage) { | |
1731 | if (n == 1) { | |
1732 | if (!s->quiet) { | |
1733 | warn_report("error while reading block status at " | |
1734 | "offset %" PRIu64 ": %s", offset, | |
1735 | strerror(-ret)); | |
1736 | } | |
1737 | /* Just try to read the data, then */ | |
1738 | ret = BDRV_BLOCK_DATA; | |
1739 | count = BDRV_SECTOR_SIZE; | |
1740 | } else { | |
1741 | /* Retry on a shorter range */ | |
1742 | n = DIV_ROUND_UP(n, 4); | |
1743 | } | |
1744 | } else { | |
1745 | error_report("error while reading block status at offset " | |
1746 | "%" PRIu64 ": %s", offset, strerror(-ret)); | |
1747 | return ret; | |
1748 | } | |
1749 | } | |
1750 | } while (ret < 0); | |
237d78f8 | 1751 | |
31826642 | 1752 | n = DIV_ROUND_UP(count, BDRV_SECTOR_SIZE); |
690c7301 | 1753 | |
af8d43d3 PL |
1754 | /* |
1755 | * Avoid that s->sector_next_status becomes unaligned to the source | |
1756 | * request alignment and/or cluster size to avoid unnecessary read | |
1757 | * cycles. | |
1758 | */ | |
1759 | tail = (sector_num - src_cur_offset + n) % s->src_alignment[src_cur]; | |
1760 | if (n > tail) { | |
1761 | n -= tail; | |
1762 | } | |
1763 | ||
690c7301 | 1764 | if (ret & BDRV_BLOCK_ZERO) { |
351c8eff | 1765 | s->status = post_backing_zero ? BLK_BACKING_FILE : BLK_ZERO; |
690c7301 KW |
1766 | } else if (ret & BDRV_BLOCK_DATA) { |
1767 | s->status = BLK_DATA; | |
690c7301 | 1768 | } else { |
9f1b92ad | 1769 | s->status = s->target_has_backing ? BLK_BACKING_FILE : BLK_DATA; |
690c7301 KW |
1770 | } |
1771 | ||
1772 | s->sector_next_status = sector_num + n; | |
1773 | } | |
1774 | ||
1775 | n = MIN(n, s->sector_next_status - sector_num); | |
1776 | if (s->status == BLK_DATA) { | |
1777 | n = MIN(n, s->buf_sectors); | |
1778 | } | |
1779 | ||
1780 | /* We need to write complete clusters for compressed images, so if an | |
1781 | * unallocated area is shorter than that, we must consider the whole | |
1782 | * cluster allocated. */ | |
1783 | if (s->compressed) { | |
1784 | if (n < s->cluster_sectors) { | |
1785 | n = MIN(s->cluster_sectors, s->total_sectors - sector_num); | |
1786 | s->status = BLK_DATA; | |
1787 | } else { | |
1788 | n = QEMU_ALIGN_DOWN(n, s->cluster_sectors); | |
1789 | } | |
1790 | } | |
1791 | ||
1792 | return n; | |
1793 | } | |
1794 | ||
2d9187bc PL |
1795 | static int coroutine_fn convert_co_read(ImgConvertState *s, int64_t sector_num, |
1796 | int nb_sectors, uint8_t *buf) | |
690c7301 | 1797 | { |
8eaac025 | 1798 | uint64_t single_read_until = 0; |
2d9187bc | 1799 | int n, ret; |
690c7301 | 1800 | |
690c7301 KW |
1801 | assert(nb_sectors <= s->buf_sectors); |
1802 | while (nb_sectors > 0) { | |
1803 | BlockBackend *blk; | |
2d9187bc PL |
1804 | int src_cur; |
1805 | int64_t bs_sectors, src_cur_offset; | |
8eaac025 | 1806 | uint64_t offset; |
690c7301 KW |
1807 | |
1808 | /* In the case of compression with multiple source files, we can get a | |
1809 | * nb_sectors that spreads into the next part. So we must be able to | |
1810 | * read across multiple BDSes for one convert_read() call. */ | |
2d9187bc PL |
1811 | convert_select_part(s, sector_num, &src_cur, &src_cur_offset); |
1812 | blk = s->src[src_cur]; | |
1813 | bs_sectors = s->src_sectors[src_cur]; | |
1814 | ||
8eaac025 HR |
1815 | offset = (sector_num - src_cur_offset) << BDRV_SECTOR_BITS; |
1816 | ||
2d9187bc | 1817 | n = MIN(nb_sectors, bs_sectors - (sector_num - src_cur_offset)); |
8eaac025 HR |
1818 | if (single_read_until > offset) { |
1819 | n = 1; | |
1820 | } | |
2d9187bc | 1821 | |
8eaac025 | 1822 | ret = blk_co_pread(blk, offset, n << BDRV_SECTOR_BITS, buf, 0); |
690c7301 | 1823 | if (ret < 0) { |
8eaac025 HR |
1824 | if (s->salvage) { |
1825 | if (n > 1) { | |
1826 | single_read_until = offset + (n << BDRV_SECTOR_BITS); | |
1827 | continue; | |
1828 | } else { | |
1829 | if (!s->quiet) { | |
1830 | warn_report("error while reading offset %" PRIu64 | |
1831 | ": %s", offset, strerror(-ret)); | |
1832 | } | |
1833 | memset(buf, 0, BDRV_SECTOR_SIZE); | |
1834 | } | |
1835 | } else { | |
1836 | return ret; | |
1837 | } | |
690c7301 KW |
1838 | } |
1839 | ||
1840 | sector_num += n; | |
1841 | nb_sectors -= n; | |
1842 | buf += n * BDRV_SECTOR_SIZE; | |
1843 | } | |
1844 | ||
1845 | return 0; | |
1846 | } | |
1847 | ||
2d9187bc PL |
1848 | |
1849 | static int coroutine_fn convert_co_write(ImgConvertState *s, int64_t sector_num, | |
1850 | int nb_sectors, uint8_t *buf, | |
1851 | enum ImgConvertBlockStatus status) | |
690c7301 KW |
1852 | { |
1853 | int ret; | |
1854 | ||
1855 | while (nb_sectors > 0) { | |
1856 | int n = nb_sectors; | |
db933fbe LC |
1857 | BdrvRequestFlags flags = s->compressed ? BDRV_REQ_WRITE_COMPRESSED : 0; |
1858 | ||
2d9187bc | 1859 | switch (status) { |
690c7301 KW |
1860 | case BLK_BACKING_FILE: |
1861 | /* If we have a backing file, leave clusters unallocated that are | |
1862 | * unallocated in the source image, so that the backing file is | |
1863 | * visible at the respective offset. */ | |
1864 | assert(s->target_has_backing); | |
1865 | break; | |
1866 | ||
1867 | case BLK_DATA: | |
db933fbe LC |
1868 | /* If we're told to keep the target fully allocated (-S 0) or there |
1869 | * is real non-zero data, we must write it. Otherwise we can treat | |
1870 | * it as zero sectors. | |
1871 | * Compressed clusters need to be written as a whole, so in that | |
1872 | * case we can only save the write if the buffer is completely | |
1873 | * zeroed. */ | |
690c7301 | 1874 | if (!s->min_sparse || |
db933fbe | 1875 | (!s->compressed && |
8dcd3c9b PL |
1876 | is_allocated_sectors_min(buf, n, &n, s->min_sparse, |
1877 | sector_num, s->alignment)) || | |
db933fbe LC |
1878 | (s->compressed && |
1879 | !buffer_is_zero(buf, n * BDRV_SECTOR_SIZE))) | |
690c7301 | 1880 | { |
265a7e54 VSO |
1881 | ret = blk_co_pwrite(s->target, sector_num << BDRV_SECTOR_BITS, |
1882 | n << BDRV_SECTOR_BITS, buf, flags); | |
690c7301 KW |
1883 | if (ret < 0) { |
1884 | return ret; | |
1885 | } | |
1886 | break; | |
1887 | } | |
1888 | /* fall-through */ | |
1889 | ||
1890 | case BLK_ZERO: | |
1891 | if (s->has_zero_init) { | |
db933fbe | 1892 | assert(!s->target_has_backing); |
690c7301 KW |
1893 | break; |
1894 | } | |
2d9187bc PL |
1895 | ret = blk_co_pwrite_zeroes(s->target, |
1896 | sector_num << BDRV_SECTOR_BITS, | |
a3d6ae22 NS |
1897 | n << BDRV_SECTOR_BITS, |
1898 | BDRV_REQ_MAY_UNMAP); | |
690c7301 KW |
1899 | if (ret < 0) { |
1900 | return ret; | |
1901 | } | |
1902 | break; | |
1903 | } | |
1904 | ||
1905 | sector_num += n; | |
1906 | nb_sectors -= n; | |
1907 | buf += n * BDRV_SECTOR_SIZE; | |
1908 | } | |
1909 | ||
1910 | return 0; | |
1911 | } | |
1912 | ||
ee5306d0 FZ |
1913 | static int coroutine_fn convert_co_copy_range(ImgConvertState *s, int64_t sector_num, |
1914 | int nb_sectors) | |
1915 | { | |
1916 | int n, ret; | |
1917 | ||
1918 | while (nb_sectors > 0) { | |
1919 | BlockBackend *blk; | |
1920 | int src_cur; | |
1921 | int64_t bs_sectors, src_cur_offset; | |
1922 | int64_t offset; | |
1923 | ||
1924 | convert_select_part(s, sector_num, &src_cur, &src_cur_offset); | |
1925 | offset = (sector_num - src_cur_offset) << BDRV_SECTOR_BITS; | |
1926 | blk = s->src[src_cur]; | |
1927 | bs_sectors = s->src_sectors[src_cur]; | |
1928 | ||
1929 | n = MIN(nb_sectors, bs_sectors - (sector_num - src_cur_offset)); | |
1930 | ||
1931 | ret = blk_co_copy_range(blk, offset, s->target, | |
1932 | sector_num << BDRV_SECTOR_BITS, | |
67b51fb9 | 1933 | n << BDRV_SECTOR_BITS, 0, 0); |
ee5306d0 FZ |
1934 | if (ret < 0) { |
1935 | return ret; | |
1936 | } | |
1937 | ||
1938 | sector_num += n; | |
1939 | nb_sectors -= n; | |
1940 | } | |
1941 | return 0; | |
1942 | } | |
1943 | ||
2d9187bc | 1944 | static void coroutine_fn convert_co_do_copy(void *opaque) |
690c7301 | 1945 | { |
2d9187bc | 1946 | ImgConvertState *s = opaque; |
690c7301 | 1947 | uint8_t *buf = NULL; |
2d9187bc PL |
1948 | int ret, i; |
1949 | int index = -1; | |
1950 | ||
1951 | for (i = 0; i < s->num_coroutines; i++) { | |
1952 | if (s->co[i] == qemu_coroutine_self()) { | |
1953 | index = i; | |
1954 | break; | |
1955 | } | |
1956 | } | |
1957 | assert(index >= 0); | |
1958 | ||
1959 | s->running_coroutines++; | |
1960 | buf = blk_blockalign(s->target, s->buf_sectors * BDRV_SECTOR_SIZE); | |
1961 | ||
1962 | while (1) { | |
1963 | int n; | |
1964 | int64_t sector_num; | |
1965 | enum ImgConvertBlockStatus status; | |
ee5306d0 | 1966 | bool copy_range; |
2d9187bc PL |
1967 | |
1968 | qemu_co_mutex_lock(&s->lock); | |
1969 | if (s->ret != -EINPROGRESS || s->sector_num >= s->total_sectors) { | |
1970 | qemu_co_mutex_unlock(&s->lock); | |
b91127ed | 1971 | break; |
2d9187bc PL |
1972 | } |
1973 | n = convert_iteration_sectors(s, s->sector_num); | |
1974 | if (n < 0) { | |
1975 | qemu_co_mutex_unlock(&s->lock); | |
1976 | s->ret = n; | |
b91127ed | 1977 | break; |
2d9187bc PL |
1978 | } |
1979 | /* save current sector and allocation status to local variables */ | |
1980 | sector_num = s->sector_num; | |
1981 | status = s->status; | |
1982 | if (!s->min_sparse && s->status == BLK_ZERO) { | |
1983 | n = MIN(n, s->buf_sectors); | |
1984 | } | |
1985 | /* increment global sector counter so that other coroutines can | |
1986 | * already continue reading beyond this request */ | |
1987 | s->sector_num += n; | |
1988 | qemu_co_mutex_unlock(&s->lock); | |
1989 | ||
1990 | if (status == BLK_DATA || (!s->min_sparse && status == BLK_ZERO)) { | |
1991 | s->allocated_done += n; | |
1992 | qemu_progress_print(100.0 * s->allocated_done / | |
1993 | s->allocated_sectors, 0); | |
1994 | } | |
1995 | ||
ee5306d0 FZ |
1996 | retry: |
1997 | copy_range = s->copy_range && s->status == BLK_DATA; | |
1998 | if (status == BLK_DATA && !copy_range) { | |
2d9187bc PL |
1999 | ret = convert_co_read(s, sector_num, n, buf); |
2000 | if (ret < 0) { | |
39f77cb6 EB |
2001 | error_report("error while reading at byte %lld: %s", |
2002 | sector_num * BDRV_SECTOR_SIZE, strerror(-ret)); | |
2d9187bc | 2003 | s->ret = ret; |
2d9187bc PL |
2004 | } |
2005 | } else if (!s->min_sparse && status == BLK_ZERO) { | |
2006 | status = BLK_DATA; | |
2007 | memset(buf, 0x00, n * BDRV_SECTOR_SIZE); | |
2008 | } | |
2009 | ||
2010 | if (s->wr_in_order) { | |
2011 | /* keep writes in order */ | |
b91127ed | 2012 | while (s->wr_offs != sector_num && s->ret == -EINPROGRESS) { |
2d9187bc PL |
2013 | s->wait_sector_num[index] = sector_num; |
2014 | qemu_coroutine_yield(); | |
2015 | } | |
2016 | s->wait_sector_num[index] = -1; | |
2017 | } | |
2018 | ||
b91127ed | 2019 | if (s->ret == -EINPROGRESS) { |
ee5306d0 FZ |
2020 | if (copy_range) { |
2021 | ret = convert_co_copy_range(s, sector_num, n); | |
2022 | if (ret) { | |
2023 | s->copy_range = false; | |
2024 | goto retry; | |
2025 | } | |
2026 | } else { | |
2027 | ret = convert_co_write(s, sector_num, n, buf, status); | |
2028 | } | |
b91127ed | 2029 | if (ret < 0) { |
39f77cb6 EB |
2030 | error_report("error while writing at byte %lld: %s", |
2031 | sector_num * BDRV_SECTOR_SIZE, strerror(-ret)); | |
b91127ed AN |
2032 | s->ret = ret; |
2033 | } | |
2d9187bc PL |
2034 | } |
2035 | ||
2036 | if (s->wr_in_order) { | |
2037 | /* reenter the coroutine that might have waited | |
2038 | * for this write to complete */ | |
2039 | s->wr_offs = sector_num + n; | |
2040 | for (i = 0; i < s->num_coroutines; i++) { | |
2041 | if (s->co[i] && s->wait_sector_num[i] == s->wr_offs) { | |
2042 | /* | |
2043 | * A -> B -> A cannot occur because A has | |
2044 | * s->wait_sector_num[i] == -1 during A -> B. Therefore | |
2045 | * B will never enter A during this time window. | |
2046 | */ | |
2047 | qemu_coroutine_enter(s->co[i]); | |
2048 | break; | |
2049 | } | |
2050 | } | |
2051 | } | |
2052 | } | |
2053 | ||
2d9187bc PL |
2054 | qemu_vfree(buf); |
2055 | s->co[index] = NULL; | |
2056 | s->running_coroutines--; | |
2057 | if (!s->running_coroutines && s->ret == -EINPROGRESS) { | |
2058 | /* the convert job finished successfully */ | |
2059 | s->ret = 0; | |
2060 | } | |
2061 | } | |
2062 | ||
2063 | static int convert_do_copy(ImgConvertState *s) | |
2064 | { | |
2065 | int ret, i, n; | |
2066 | int64_t sector_num = 0; | |
690c7301 KW |
2067 | |
2068 | /* Check whether we have zero initialisation or can get it efficiently */ | |
168468fe DE |
2069 | if (!s->has_zero_init && s->target_is_new && s->min_sparse && |
2070 | !s->target_has_backing) { | |
4d7c487e | 2071 | s->has_zero_init = bdrv_has_zero_init(blk_bs(s->target)); |
4d7c487e | 2072 | } |
690c7301 | 2073 | |
690c7301 KW |
2074 | /* Allocate buffer for copied data. For compressed images, only one cluster |
2075 | * can be copied at a time. */ | |
2076 | if (s->compressed) { | |
2077 | if (s->cluster_sectors <= 0 || s->cluster_sectors > s->buf_sectors) { | |
2078 | error_report("invalid cluster size"); | |
2d9187bc | 2079 | return -EINVAL; |
690c7301 KW |
2080 | } |
2081 | s->buf_sectors = s->cluster_sectors; | |
2082 | } | |
690c7301 | 2083 | |
690c7301 KW |
2084 | while (sector_num < s->total_sectors) { |
2085 | n = convert_iteration_sectors(s, sector_num); | |
2086 | if (n < 0) { | |
2d9187bc | 2087 | return n; |
690c7301 | 2088 | } |
aad15de4 HR |
2089 | if (s->status == BLK_DATA || (!s->min_sparse && s->status == BLK_ZERO)) |
2090 | { | |
690c7301 KW |
2091 | s->allocated_sectors += n; |
2092 | } | |
2093 | sector_num += n; | |
2094 | } | |
2095 | ||
2096 | /* Do the copy */ | |
690c7301 | 2097 | s->sector_next_status = 0; |
2d9187bc | 2098 | s->ret = -EINPROGRESS; |
690c7301 | 2099 | |
2d9187bc PL |
2100 | qemu_co_mutex_init(&s->lock); |
2101 | for (i = 0; i < s->num_coroutines; i++) { | |
2102 | s->co[i] = qemu_coroutine_create(convert_co_do_copy, s); | |
2103 | s->wait_sector_num[i] = -1; | |
2104 | qemu_coroutine_enter(s->co[i]); | |
2105 | } | |
690c7301 | 2106 | |
b91127ed | 2107 | while (s->running_coroutines) { |
2d9187bc | 2108 | main_loop_wait(false); |
690c7301 KW |
2109 | } |
2110 | ||
2d9187bc | 2111 | if (s->compressed && !s->ret) { |
690c7301 | 2112 | /* signal EOF to align */ |
fe5c1355 | 2113 | ret = blk_pwrite_compressed(s->target, 0, NULL, 0); |
690c7301 | 2114 | if (ret < 0) { |
2d9187bc | 2115 | return ret; |
690c7301 KW |
2116 | } |
2117 | } | |
2118 | ||
2d9187bc | 2119 | return s->ret; |
690c7301 KW |
2120 | } |
2121 | ||
74a4320f | 2122 | /* Check that bitmaps can be copied, or output an error */ |
955171e4 | 2123 | static int convert_check_bitmaps(BlockDriverState *src, bool skip_broken) |
74a4320f EB |
2124 | { |
2125 | BdrvDirtyBitmap *bm; | |
2126 | ||
2127 | if (!bdrv_supports_persistent_dirty_bitmap(src)) { | |
2128 | error_report("Source lacks bitmap support"); | |
2129 | return -1; | |
2130 | } | |
2131 | FOR_EACH_DIRTY_BITMAP(src, bm) { | |
2132 | if (!bdrv_dirty_bitmap_get_persistence(bm)) { | |
2133 | continue; | |
2134 | } | |
955171e4 | 2135 | if (!skip_broken && bdrv_dirty_bitmap_inconsistent(bm)) { |
74a4320f EB |
2136 | error_report("Cannot copy inconsistent bitmap '%s'", |
2137 | bdrv_dirty_bitmap_name(bm)); | |
955171e4 EB |
2138 | error_printf("Try --skip-broken-bitmaps, or " |
2139 | "use 'qemu-img bitmap --remove' to delete it\n"); | |
74a4320f EB |
2140 | return -1; |
2141 | } | |
2142 | } | |
2143 | return 0; | |
2144 | } | |
2145 | ||
955171e4 EB |
2146 | static int convert_copy_bitmaps(BlockDriverState *src, BlockDriverState *dst, |
2147 | bool skip_broken) | |
15e39ad9 EB |
2148 | { |
2149 | BdrvDirtyBitmap *bm; | |
2150 | Error *err = NULL; | |
2151 | ||
2152 | FOR_EACH_DIRTY_BITMAP(src, bm) { | |
2153 | const char *name; | |
2154 | ||
2155 | if (!bdrv_dirty_bitmap_get_persistence(bm)) { | |
2156 | continue; | |
2157 | } | |
2158 | name = bdrv_dirty_bitmap_name(bm); | |
955171e4 EB |
2159 | if (skip_broken && bdrv_dirty_bitmap_inconsistent(bm)) { |
2160 | warn_report("Skipping inconsistent bitmap '%s'", name); | |
2161 | continue; | |
2162 | } | |
15e39ad9 EB |
2163 | qmp_block_dirty_bitmap_add(dst->node_name, name, |
2164 | true, bdrv_dirty_bitmap_granularity(bm), | |
2165 | true, true, | |
2166 | true, !bdrv_dirty_bitmap_enabled(bm), | |
2167 | &err); | |
2168 | if (err) { | |
2169 | error_reportf_err(err, "Failed to create bitmap %s: ", name); | |
2170 | return -1; | |
2171 | } | |
2172 | ||
2173 | do_dirty_bitmap_merge(dst->node_name, name, src->node_name, name, | |
2174 | &err); | |
2175 | if (err) { | |
2176 | error_reportf_err(err, "Failed to populate bitmap %s: ", name); | |
74a4320f | 2177 | qmp_block_dirty_bitmap_remove(dst->node_name, name, NULL); |
15e39ad9 EB |
2178 | return -1; |
2179 | } | |
2180 | } | |
2181 | ||
2182 | return 0; | |
2183 | } | |
2184 | ||
6360ab27 PL |
2185 | #define MAX_BUF_SECTORS 32768 |
2186 | ||
0c8c4895 ZL |
2187 | static void set_rate_limit(BlockBackend *blk, int64_t rate_limit) |
2188 | { | |
2189 | ThrottleConfig cfg; | |
2190 | ||
2191 | throttle_config_init(&cfg); | |
2192 | cfg.buckets[THROTTLE_BPS_WRITE].avg = rate_limit; | |
2193 | ||
2194 | blk_io_limits_enable(blk, CONVERT_THROTTLE_GROUP); | |
2195 | blk_set_io_limits(blk, &cfg); | |
2196 | } | |
2197 | ||
ea2384d3 FB |
2198 | static int img_convert(int argc, char **argv) |
2199 | { | |
0b8fb55c | 2200 | int c, bs_i, flags, src_flags = BDRV_O_NO_SHARE; |
305b4c60 | 2201 | const char *fmt = NULL, *out_fmt = NULL, *cache = "unsafe", |
9fd77f99 | 2202 | *src_cache = BDRV_DEFAULT_CACHE, *out_baseimg = NULL, |
1899bf47 EB |
2203 | *out_filename, *out_baseimg_param, *snapshot_name = NULL, |
2204 | *backing_fmt = NULL; | |
305b4c60 | 2205 | BlockDriver *drv = NULL, *proto_drv = NULL; |
faea38e7 | 2206 | BlockDriverInfo bdi; |
9fd77f99 PL |
2207 | BlockDriverState *out_bs; |
2208 | QemuOpts *opts = NULL, *sn_opts = NULL; | |
83d0521a | 2209 | QemuOptsList *create_opts = NULL; |
8d65a3cc | 2210 | QDict *open_opts = NULL; |
efa84d43 | 2211 | char *options = NULL; |
cc84d90f | 2212 | Error *local_err = NULL; |
3d96cb91 | 2213 | bool writethrough, src_writethrough, image_opts = false, |
305b4c60 | 2214 | skip_create = false, progress = false, tgt_image_opts = false; |
9fd77f99 | 2215 | int64_t ret = -EINVAL; |
335e9937 | 2216 | bool force_share = false; |
e11ce12f | 2217 | bool explict_min_sparse = false; |
15e39ad9 | 2218 | bool bitmaps = false; |
955171e4 | 2219 | bool skip_broken = false; |
0c8c4895 | 2220 | int64_t rate_limit = 0; |
9fd77f99 PL |
2221 | |
2222 | ImgConvertState s = (ImgConvertState) { | |
2223 | /* Need at least 4k of zeros for sparse detection */ | |
2224 | .min_sparse = 8, | |
e11ce12f | 2225 | .copy_range = false, |
9fd77f99 PL |
2226 | .buf_sectors = IO_BUF_SIZE / BDRV_SECTOR_SIZE, |
2227 | .wr_in_order = true, | |
2228 | .num_coroutines = 8, | |
2229 | }; | |
ea2384d3 | 2230 | |
ea2384d3 | 2231 | for(;;) { |
3babeb15 DB |
2232 | static const struct option long_options[] = { |
2233 | {"help", no_argument, 0, 'h'}, | |
2234 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 2235 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 2236 | {"force-share", no_argument, 0, 'U'}, |
305b4c60 | 2237 | {"target-image-opts", no_argument, 0, OPTION_TARGET_IMAGE_OPTS}, |
8eaac025 | 2238 | {"salvage", no_argument, 0, OPTION_SALVAGE}, |
168468fe | 2239 | {"target-is-zero", no_argument, 0, OPTION_TARGET_IS_ZERO}, |
15e39ad9 | 2240 | {"bitmaps", no_argument, 0, OPTION_BITMAPS}, |
955171e4 | 2241 | {"skip-broken-bitmaps", no_argument, 0, OPTION_SKIP_BROKEN}, |
3babeb15 DB |
2242 | {0, 0, 0, 0} |
2243 | }; | |
1899bf47 | 2244 | c = getopt_long(argc, argv, ":hf:O:B:CcF:o:l:S:pt:T:qnm:WUr:", |
3babeb15 | 2245 | long_options, NULL); |
b8fb60da | 2246 | if (c == -1) { |
ea2384d3 | 2247 | break; |
b8fb60da | 2248 | } |
ea2384d3 | 2249 | switch(c) { |
c9192973 SH |
2250 | case ':': |
2251 | missing_argument(argv[optind - 1]); | |
2252 | break; | |
ef87394c | 2253 | case '?': |
c9192973 SH |
2254 | unrecognized_option(argv[optind - 1]); |
2255 | break; | |
ea2384d3 FB |
2256 | case 'h': |
2257 | help(); | |
2258 | break; | |
2259 | case 'f': | |
2260 | fmt = optarg; | |
2261 | break; | |
2262 | case 'O': | |
2263 | out_fmt = optarg; | |
2264 | break; | |
f58c7b35 TS |
2265 | case 'B': |
2266 | out_baseimg = optarg; | |
2267 | break; | |
e11ce12f FZ |
2268 | case 'C': |
2269 | s.copy_range = true; | |
2270 | break; | |
ea2384d3 | 2271 | case 'c': |
9fd77f99 | 2272 | s.compressed = true; |
ea2384d3 | 2273 | break; |
1899bf47 EB |
2274 | case 'F': |
2275 | backing_fmt = optarg; | |
2276 | break; | |
efa84d43 | 2277 | case 'o': |
6d2b5cba | 2278 | if (accumulate_options(&options, optarg) < 0) { |
64bb01aa | 2279 | goto fail_getopt; |
2dc8328b | 2280 | } |
efa84d43 | 2281 | break; |
ef80654d WX |
2282 | case 'l': |
2283 | if (strstart(optarg, SNAPSHOT_OPT_BASE, NULL)) { | |
70b94331 MA |
2284 | sn_opts = qemu_opts_parse_noisily(&internal_snapshot_opts, |
2285 | optarg, false); | |
ef80654d WX |
2286 | if (!sn_opts) { |
2287 | error_report("Failed in parsing snapshot param '%s'", | |
2288 | optarg); | |
64bb01aa | 2289 | goto fail_getopt; |
ef80654d WX |
2290 | } |
2291 | } else { | |
2292 | snapshot_name = optarg; | |
2293 | } | |
2294 | break; | |
a22f123c KW |
2295 | case 'S': |
2296 | { | |
2297 | int64_t sval; | |
606caa0a | 2298 | |
43d589b0 EM |
2299 | sval = cvtnum("buffer size for sparse output", optarg); |
2300 | if (sval < 0) { | |
2301 | goto fail_getopt; | |
2302 | } else if (!QEMU_IS_ALIGNED(sval, BDRV_SECTOR_SIZE) || | |
6360ab27 PL |
2303 | sval / BDRV_SECTOR_SIZE > MAX_BUF_SECTORS) { |
2304 | error_report("Invalid buffer size for sparse output specified. " | |
2305 | "Valid sizes are multiples of %llu up to %llu. Select " | |
2306 | "0 to disable sparse detection (fully allocates output).", | |
2307 | BDRV_SECTOR_SIZE, MAX_BUF_SECTORS * BDRV_SECTOR_SIZE); | |
64bb01aa | 2308 | goto fail_getopt; |
a22f123c KW |
2309 | } |
2310 | ||
9fd77f99 | 2311 | s.min_sparse = sval / BDRV_SECTOR_SIZE; |
e11ce12f | 2312 | explict_min_sparse = true; |
a22f123c KW |
2313 | break; |
2314 | } | |
6b837bc4 | 2315 | case 'p': |
9fd77f99 | 2316 | progress = true; |
6b837bc4 | 2317 | break; |
661a0f71 FS |
2318 | case 't': |
2319 | cache = optarg; | |
2320 | break; | |
40055951 HR |
2321 | case 'T': |
2322 | src_cache = optarg; | |
2323 | break; | |
f382d43a | 2324 | case 'q': |
3d96cb91 | 2325 | s.quiet = true; |
f382d43a | 2326 | break; |
b2e10493 | 2327 | case 'n': |
9fd77f99 | 2328 | skip_create = true; |
b2e10493 | 2329 | break; |
2d9187bc | 2330 | case 'm': |
9fd77f99 PL |
2331 | if (qemu_strtol(optarg, NULL, 0, &s.num_coroutines) || |
2332 | s.num_coroutines < 1 || s.num_coroutines > MAX_COROUTINES) { | |
2d9187bc PL |
2333 | error_report("Invalid number of coroutines. Allowed number of" |
2334 | " coroutines is between 1 and %d", MAX_COROUTINES); | |
2d9187bc PL |
2335 | goto fail_getopt; |
2336 | } | |
2337 | break; | |
2338 | case 'W': | |
9fd77f99 | 2339 | s.wr_in_order = false; |
2d9187bc | 2340 | break; |
335e9937 FZ |
2341 | case 'U': |
2342 | force_share = true; | |
2343 | break; | |
0c8c4895 ZL |
2344 | case 'r': |
2345 | rate_limit = cvtnum("rate limit", optarg); | |
2346 | if (rate_limit < 0) { | |
2347 | goto fail_getopt; | |
2348 | } | |
2349 | break; | |
99b1e646 KW |
2350 | case OPTION_OBJECT: |
2351 | user_creatable_process_cmdline(optarg); | |
3babeb15 | 2352 | break; |
eb769f74 DB |
2353 | case OPTION_IMAGE_OPTS: |
2354 | image_opts = true; | |
2355 | break; | |
8eaac025 HR |
2356 | case OPTION_SALVAGE: |
2357 | s.salvage = true; | |
2358 | break; | |
305b4c60 DB |
2359 | case OPTION_TARGET_IMAGE_OPTS: |
2360 | tgt_image_opts = true; | |
2361 | break; | |
168468fe DE |
2362 | case OPTION_TARGET_IS_ZERO: |
2363 | /* | |
2364 | * The user asserting that the target is blank has the | |
2365 | * same effect as the target driver supporting zero | |
2366 | * initialisation. | |
2367 | */ | |
2368 | s.has_zero_init = true; | |
2369 | break; | |
15e39ad9 EB |
2370 | case OPTION_BITMAPS: |
2371 | bitmaps = true; | |
2372 | break; | |
955171e4 EB |
2373 | case OPTION_SKIP_BROKEN: |
2374 | skip_broken = true; | |
2375 | break; | |
ea2384d3 FB |
2376 | } |
2377 | } | |
3b46e624 | 2378 | |
305b4c60 DB |
2379 | if (!out_fmt && !tgt_image_opts) { |
2380 | out_fmt = "raw"; | |
2381 | } | |
2382 | ||
955171e4 EB |
2383 | if (skip_broken && !bitmaps) { |
2384 | error_report("Use of --skip-broken-bitmaps requires --bitmaps"); | |
2385 | goto fail_getopt; | |
2386 | } | |
2387 | ||
e11ce12f FZ |
2388 | if (s.compressed && s.copy_range) { |
2389 | error_report("Cannot enable copy offloading when -c is used"); | |
2390 | goto fail_getopt; | |
2391 | } | |
2392 | ||
2393 | if (explict_min_sparse && s.copy_range) { | |
2394 | error_report("Cannot enable copy offloading when -S is used"); | |
2395 | goto fail_getopt; | |
2396 | } | |
2397 | ||
8eaac025 HR |
2398 | if (s.copy_range && s.salvage) { |
2399 | error_report("Cannot use copy offloading in salvaging mode"); | |
2400 | goto fail_getopt; | |
2401 | } | |
2402 | ||
305b4c60 DB |
2403 | if (tgt_image_opts && !skip_create) { |
2404 | error_report("--target-image-opts requires use of -n flag"); | |
2405 | goto fail_getopt; | |
2406 | } | |
2407 | ||
ffd8e8ff | 2408 | if (skip_create && options) { |
25956af3 EB |
2409 | error_report("-o has no effect when skipping image creation"); |
2410 | goto fail_getopt; | |
ffd8e8ff KW |
2411 | } |
2412 | ||
168468fe DE |
2413 | if (s.has_zero_init && !skip_create) { |
2414 | error_report("--target-is-zero requires use of -n flag"); | |
2415 | goto fail_getopt; | |
2416 | } | |
2417 | ||
9fd77f99 PL |
2418 | s.src_num = argc - optind - 1; |
2419 | out_filename = s.src_num >= 1 ? argv[argc - 1] : NULL; | |
f58c7b35 | 2420 | |
2dc8328b | 2421 | if (options && has_help_option(options)) { |
305b4c60 DB |
2422 | if (out_fmt) { |
2423 | ret = print_block_option_help(out_filename, out_fmt); | |
2424 | goto fail_getopt; | |
2425 | } else { | |
2426 | error_report("Option help requires a format be specified"); | |
2427 | goto fail_getopt; | |
2428 | } | |
4ac8aacd JS |
2429 | } |
2430 | ||
9fd77f99 PL |
2431 | if (s.src_num < 1) { |
2432 | error_report("Must specify image file name"); | |
2433 | goto fail_getopt; | |
a283cb6e KW |
2434 | } |
2435 | ||
9fd77f99 | 2436 | /* ret is still -EINVAL until here */ |
ce099547 | 2437 | ret = bdrv_parse_cache_mode(src_cache, &src_flags, &src_writethrough); |
40055951 HR |
2438 | if (ret < 0) { |
2439 | error_report("Invalid source cache option: %s", src_cache); | |
9fd77f99 | 2440 | goto fail_getopt; |
40055951 HR |
2441 | } |
2442 | ||
9fd77f99 | 2443 | /* Initialize before goto out */ |
3d96cb91 | 2444 | if (s.quiet) { |
9fd77f99 PL |
2445 | progress = false; |
2446 | } | |
2447 | qemu_progress_init(progress, 1.0); | |
6b837bc4 JS |
2448 | qemu_progress_print(0, 100); |
2449 | ||
9fd77f99 PL |
2450 | s.src = g_new0(BlockBackend *, s.src_num); |
2451 | s.src_sectors = g_new(int64_t, s.src_num); | |
af8d43d3 | 2452 | s.src_alignment = g_new(int, s.src_num); |
926c2d23 | 2453 | |
9fd77f99 | 2454 | for (bs_i = 0; bs_i < s.src_num; bs_i++) { |
af8d43d3 | 2455 | BlockDriverState *src_bs; |
9fd77f99 | 2456 | s.src[bs_i] = img_open(image_opts, argv[optind + bs_i], |
3d96cb91 | 2457 | fmt, src_flags, src_writethrough, s.quiet, |
335e9937 | 2458 | force_share); |
9fd77f99 | 2459 | if (!s.src[bs_i]) { |
c2abccec MK |
2460 | ret = -1; |
2461 | goto out; | |
2462 | } | |
9fd77f99 PL |
2463 | s.src_sectors[bs_i] = blk_nb_sectors(s.src[bs_i]); |
2464 | if (s.src_sectors[bs_i] < 0) { | |
52bf1e72 | 2465 | error_report("Could not get size of %s: %s", |
9fd77f99 | 2466 | argv[optind + bs_i], strerror(-s.src_sectors[bs_i])); |
52bf1e72 MA |
2467 | ret = -1; |
2468 | goto out; | |
2469 | } | |
af8d43d3 PL |
2470 | src_bs = blk_bs(s.src[bs_i]); |
2471 | s.src_alignment[bs_i] = DIV_ROUND_UP(src_bs->bl.request_alignment, | |
2472 | BDRV_SECTOR_SIZE); | |
2473 | if (!bdrv_get_info(src_bs, &bdi)) { | |
2474 | s.src_alignment[bs_i] = MAX(s.src_alignment[bs_i], | |
2475 | bdi.cluster_size / BDRV_SECTOR_SIZE); | |
2476 | } | |
9fd77f99 | 2477 | s.total_sectors += s.src_sectors[bs_i]; |
926c2d23 | 2478 | } |
ea2384d3 | 2479 | |
ef80654d | 2480 | if (sn_opts) { |
9fd77f99 | 2481 | bdrv_snapshot_load_tmp(blk_bs(s.src[0]), |
10d6eda1 PM |
2482 | qemu_opt_get(sn_opts, SNAPSHOT_OPT_ID), |
2483 | qemu_opt_get(sn_opts, SNAPSHOT_OPT_NAME), | |
2484 | &local_err); | |
ef80654d | 2485 | } else if (snapshot_name != NULL) { |
9fd77f99 | 2486 | if (s.src_num > 1) { |
6daf194d | 2487 | error_report("No support for concatenating multiple snapshot"); |
51ef6727 | 2488 | ret = -1; |
2489 | goto out; | |
2490 | } | |
7b4c4781 | 2491 | |
9fd77f99 PL |
2492 | bdrv_snapshot_load_tmp_by_id_or_name(blk_bs(s.src[0]), snapshot_name, |
2493 | &local_err); | |
ef80654d | 2494 | } |
84d18f06 | 2495 | if (local_err) { |
c29b77f9 | 2496 | error_reportf_err(local_err, "Failed to load snapshot: "); |
ef80654d WX |
2497 | ret = -1; |
2498 | goto out; | |
51ef6727 | 2499 | } |
2500 | ||
305b4c60 DB |
2501 | if (!skip_create) { |
2502 | /* Find driver and parse its options */ | |
2503 | drv = bdrv_find_format(out_fmt); | |
2504 | if (!drv) { | |
2505 | error_report("Unknown file format '%s'", out_fmt); | |
2506 | ret = -1; | |
2507 | goto out; | |
2508 | } | |
efa84d43 | 2509 | |
305b4c60 DB |
2510 | proto_drv = bdrv_find_protocol(out_filename, true, &local_err); |
2511 | if (!proto_drv) { | |
2512 | error_report_err(local_err); | |
2513 | ret = -1; | |
2514 | goto out; | |
2515 | } | |
b50cbabc | 2516 | |
2e024cde HR |
2517 | if (!drv->create_opts) { |
2518 | error_report("Format driver '%s' does not support image creation", | |
2519 | drv->format_name); | |
2520 | ret = -1; | |
2521 | goto out; | |
2522 | } | |
f75613cf | 2523 | |
2e024cde HR |
2524 | if (!proto_drv->create_opts) { |
2525 | error_report("Protocol driver '%s' does not support image creation", | |
2526 | proto_drv->format_name); | |
2527 | ret = -1; | |
2528 | goto out; | |
2529 | } | |
f75613cf | 2530 | |
2e024cde HR |
2531 | create_opts = qemu_opts_append(create_opts, drv->create_opts); |
2532 | create_opts = qemu_opts_append(create_opts, proto_drv->create_opts); | |
db08adf5 | 2533 | |
2e024cde | 2534 | opts = qemu_opts_create(create_opts, NULL, 0, &error_abort); |
dc523cd3 | 2535 | if (options) { |
235e59cf | 2536 | if (!qemu_opts_do_parse(opts, options, NULL, &local_err)) { |
97a2ca7a | 2537 | error_report_err(local_err); |
dc523cd3 MA |
2538 | ret = -1; |
2539 | goto out; | |
2540 | } | |
2e024cde | 2541 | } |
efa84d43 | 2542 | |
c075c42f YL |
2543 | qemu_opt_set_number(opts, BLOCK_OPT_SIZE, |
2544 | s.total_sectors * BDRV_SECTOR_SIZE, &error_abort); | |
1899bf47 | 2545 | ret = add_old_style_options(out_fmt, opts, out_baseimg, backing_fmt); |
2e024cde HR |
2546 | if (ret < 0) { |
2547 | goto out; | |
2548 | } | |
c2abccec | 2549 | } |
efa84d43 | 2550 | |
a18953fb | 2551 | /* Get backing file name if -o backing_file was used */ |
83d0521a | 2552 | out_baseimg_param = qemu_opt_get(opts, BLOCK_OPT_BACKING_FILE); |
a18953fb | 2553 | if (out_baseimg_param) { |
83d0521a | 2554 | out_baseimg = out_baseimg_param; |
a18953fb | 2555 | } |
9fd77f99 | 2556 | s.target_has_backing = (bool) out_baseimg; |
a18953fb | 2557 | |
168468fe DE |
2558 | if (s.has_zero_init && s.target_has_backing) { |
2559 | error_report("Cannot use --target-is-zero when the destination " | |
2560 | "image has a backing file"); | |
2561 | goto out; | |
2562 | } | |
2563 | ||
48758a84 HR |
2564 | if (s.src_num > 1 && out_baseimg) { |
2565 | error_report("Having a backing file for the target makes no sense when " | |
2566 | "concatenating multiple input images"); | |
2567 | ret = -1; | |
2568 | goto out; | |
2569 | } | |
2570 | ||
d9f059aa EB |
2571 | if (out_baseimg_param) { |
2572 | if (!qemu_opt_get(opts, BLOCK_OPT_BACKING_FMT)) { | |
497a30db EB |
2573 | error_report("Use of backing file requires explicit " |
2574 | "backing format"); | |
2575 | ret = -1; | |
2576 | goto out; | |
d9f059aa EB |
2577 | } |
2578 | } | |
2579 | ||
efa84d43 | 2580 | /* Check if compression is supported */ |
9fd77f99 | 2581 | if (s.compressed) { |
83d0521a CL |
2582 | bool encryption = |
2583 | qemu_opt_get_bool(opts, BLOCK_OPT_ENCRYPT, false); | |
0cb8d47b DB |
2584 | const char *encryptfmt = |
2585 | qemu_opt_get(opts, BLOCK_OPT_ENCRYPT_FORMAT); | |
83d0521a CL |
2586 | const char *preallocation = |
2587 | qemu_opt_get(opts, BLOCK_OPT_PREALLOC); | |
efa84d43 | 2588 | |
ac850bf0 | 2589 | if (drv && !block_driver_can_compress(drv)) { |
15654a6d | 2590 | error_report("Compression not supported for this file format"); |
c2abccec MK |
2591 | ret = -1; |
2592 | goto out; | |
efa84d43 KW |
2593 | } |
2594 | ||
0cb8d47b | 2595 | if (encryption || encryptfmt) { |
15654a6d JS |
2596 | error_report("Compression and encryption not supported at " |
2597 | "the same time"); | |
c2abccec MK |
2598 | ret = -1; |
2599 | goto out; | |
efa84d43 | 2600 | } |
41521fa4 | 2601 | |
83d0521a CL |
2602 | if (preallocation |
2603 | && strcmp(preallocation, "off")) | |
41521fa4 KW |
2604 | { |
2605 | error_report("Compression and preallocation not supported at " | |
2606 | "the same time"); | |
2607 | ret = -1; | |
2608 | goto out; | |
2609 | } | |
efa84d43 KW |
2610 | } |
2611 | ||
15e39ad9 EB |
2612 | /* Determine if bitmaps need copying */ |
2613 | if (bitmaps) { | |
2614 | if (s.src_num > 1) { | |
2615 | error_report("Copying bitmaps only possible with single source"); | |
2616 | ret = -1; | |
2617 | goto out; | |
2618 | } | |
955171e4 | 2619 | ret = convert_check_bitmaps(blk_bs(s.src[0]), skip_broken); |
74a4320f | 2620 | if (ret < 0) { |
15e39ad9 EB |
2621 | goto out; |
2622 | } | |
2623 | } | |
2624 | ||
8d65a3cc DB |
2625 | /* |
2626 | * The later open call will need any decryption secrets, and | |
2627 | * bdrv_create() will purge "opts", so extract them now before | |
2628 | * they are lost. | |
2629 | */ | |
2630 | if (!skip_create) { | |
2631 | open_opts = qdict_new(); | |
2632 | qemu_opt_foreach(opts, img_add_key_secrets, open_opts, &error_abort); | |
8d65a3cc | 2633 | |
b2e10493 | 2634 | /* Create the new image */ |
c282e1fd | 2635 | ret = bdrv_create(drv, out_filename, opts, &local_err); |
b2e10493 | 2636 | if (ret < 0) { |
c29b77f9 MA |
2637 | error_reportf_err(local_err, "%s: error while converting %s: ", |
2638 | out_filename, out_fmt); | |
b2e10493 | 2639 | goto out; |
ea2384d3 FB |
2640 | } |
2641 | } | |
3b46e624 | 2642 | |
4d7c487e HR |
2643 | s.target_is_new = !skip_create; |
2644 | ||
9fd77f99 | 2645 | flags = s.min_sparse ? (BDRV_O_RDWR | BDRV_O_UNMAP) : BDRV_O_RDWR; |
ce099547 | 2646 | ret = bdrv_parse_cache_mode(cache, &flags, &writethrough); |
661a0f71 FS |
2647 | if (ret < 0) { |
2648 | error_report("Invalid cache option: %s", cache); | |
bb9cd2ee | 2649 | goto out; |
661a0f71 FS |
2650 | } |
2651 | ||
a1c62436 HR |
2652 | if (flags & BDRV_O_NOCACHE) { |
2653 | /* | |
2654 | * If we open the target with O_DIRECT, it may be necessary to | |
2655 | * extend its size to align to the physical sector size. | |
2656 | */ | |
2657 | flags |= BDRV_O_RESIZE; | |
2658 | } | |
2659 | ||
305b4c60 DB |
2660 | if (skip_create) { |
2661 | s.target = img_open(tgt_image_opts, out_filename, out_fmt, | |
3d96cb91 | 2662 | flags, writethrough, s.quiet, false); |
305b4c60 DB |
2663 | } else { |
2664 | /* TODO ultimately we should allow --target-image-opts | |
2665 | * to be used even when -n is not given. | |
2666 | * That has to wait for bdrv_create to be improved | |
2667 | * to allow filenames in option syntax | |
2668 | */ | |
8d65a3cc | 2669 | s.target = img_open_file(out_filename, open_opts, out_fmt, |
3d96cb91 | 2670 | flags, writethrough, s.quiet, false); |
8d65a3cc | 2671 | open_opts = NULL; /* blk_new_open will have freed it */ |
305b4c60 | 2672 | } |
9fd77f99 | 2673 | if (!s.target) { |
c2abccec MK |
2674 | ret = -1; |
2675 | goto out; | |
2676 | } | |
9fd77f99 | 2677 | out_bs = blk_bs(s.target); |
ea2384d3 | 2678 | |
15e39ad9 EB |
2679 | if (bitmaps && !bdrv_supports_persistent_dirty_bitmap(out_bs)) { |
2680 | error_report("Format driver '%s' does not support bitmaps", | |
2681 | out_bs->drv->format_name); | |
2682 | ret = -1; | |
2683 | goto out; | |
2684 | } | |
2685 | ||
ac850bf0 | 2686 | if (s.compressed && !block_driver_can_compress(out_bs->drv)) { |
305b4c60 DB |
2687 | error_report("Compression not supported for this file format"); |
2688 | ret = -1; | |
2689 | goto out; | |
2690 | } | |
2691 | ||
5def6b80 | 2692 | /* increase bufsectors from the default 4096 (2M) if opt_transfer |
6360ab27 PL |
2693 | * or discard_alignment of the out_bs is greater. Limit to |
2694 | * MAX_BUF_SECTORS as maximum which is currently 32768 (16MB). */ | |
2695 | s.buf_sectors = MIN(MAX_BUF_SECTORS, | |
9fd77f99 PL |
2696 | MAX(s.buf_sectors, |
2697 | MAX(out_bs->bl.opt_transfer >> BDRV_SECTOR_BITS, | |
2698 | out_bs->bl.pdiscard_alignment >> | |
2699 | BDRV_SECTOR_BITS))); | |
f2521c90 | 2700 | |
8dcd3c9b PL |
2701 | /* try to align the write requests to the destination to avoid unnecessary |
2702 | * RMW cycles. */ | |
2703 | s.alignment = MAX(pow2floor(s.min_sparse), | |
2704 | DIV_ROUND_UP(out_bs->bl.request_alignment, | |
2705 | BDRV_SECTOR_SIZE)); | |
2706 | assert(is_power_of_2(s.alignment)); | |
2707 | ||
b2e10493 | 2708 | if (skip_create) { |
9fd77f99 | 2709 | int64_t output_sectors = blk_nb_sectors(s.target); |
43716fa8 | 2710 | if (output_sectors < 0) { |
eec5eb42 | 2711 | error_report("unable to get output image length: %s", |
43716fa8 | 2712 | strerror(-output_sectors)); |
b2e10493 AD |
2713 | ret = -1; |
2714 | goto out; | |
9fd77f99 | 2715 | } else if (output_sectors < s.total_sectors) { |
b2e10493 AD |
2716 | error_report("output file is smaller than input file"); |
2717 | ret = -1; | |
2718 | goto out; | |
2719 | } | |
2720 | } | |
2721 | ||
c69291e7 | 2722 | if (s.target_has_backing && s.target_is_new) { |
351c8eff HR |
2723 | /* Errors are treated as "backing length unknown" (which means |
2724 | * s.target_backing_sectors has to be negative, which it will | |
2725 | * be automatically). The backing file length is used only | |
2726 | * for optimizations, so such a case is not fatal. */ | |
4a2061e6 HR |
2727 | s.target_backing_sectors = |
2728 | bdrv_nb_sectors(bdrv_backing_chain_next(out_bs)); | |
351c8eff HR |
2729 | } else { |
2730 | s.target_backing_sectors = -1; | |
2731 | } | |
2732 | ||
24f833cd PL |
2733 | ret = bdrv_get_info(out_bs, &bdi); |
2734 | if (ret < 0) { | |
9fd77f99 | 2735 | if (s.compressed) { |
15654a6d | 2736 | error_report("could not get block driver info"); |
c2abccec MK |
2737 | goto out; |
2738 | } | |
24f833cd | 2739 | } else { |
9fd77f99 PL |
2740 | s.compressed = s.compressed || bdi.needs_compressed_writes; |
2741 | s.cluster_sectors = bdi.cluster_size / BDRV_SECTOR_SIZE; | |
2742 | } | |
802c3d4c | 2743 | |
0c8c4895 ZL |
2744 | if (rate_limit) { |
2745 | set_rate_limit(s.target, rate_limit); | |
2746 | } | |
2747 | ||
9fd77f99 | 2748 | ret = convert_do_copy(&s); |
15e39ad9 EB |
2749 | |
2750 | /* Now copy the bitmaps */ | |
2751 | if (bitmaps && ret == 0) { | |
955171e4 | 2752 | ret = convert_copy_bitmaps(blk_bs(s.src[0]), out_bs, skip_broken); |
15e39ad9 EB |
2753 | } |
2754 | ||
c2abccec | 2755 | out: |
13c28af8 PL |
2756 | if (!ret) { |
2757 | qemu_progress_print(100, 0); | |
2758 | } | |
6b837bc4 | 2759 | qemu_progress_end(); |
83d0521a CL |
2760 | qemu_opts_del(opts); |
2761 | qemu_opts_free(create_opts); | |
8d65a3cc | 2762 | qobject_unref(open_opts); |
9fd77f99 PL |
2763 | blk_unref(s.target); |
2764 | if (s.src) { | |
2765 | for (bs_i = 0; bs_i < s.src_num; bs_i++) { | |
2766 | blk_unref(s.src[bs_i]); | |
26f54e9a | 2767 | } |
9fd77f99 | 2768 | g_free(s.src); |
26f54e9a | 2769 | } |
9fd77f99 | 2770 | g_free(s.src_sectors); |
af8d43d3 | 2771 | g_free(s.src_alignment); |
64bb01aa | 2772 | fail_getopt: |
6aec830e | 2773 | qemu_opts_del(sn_opts); |
64bb01aa KW |
2774 | g_free(options); |
2775 | ||
9fd77f99 | 2776 | return !!ret; |
ea2384d3 FB |
2777 | } |
2778 | ||
57d1a2b6 | 2779 | |
faea38e7 FB |
2780 | static void dump_snapshots(BlockDriverState *bs) |
2781 | { | |
2782 | QEMUSnapshotInfo *sn_tab, *sn; | |
2783 | int nb_sns, i; | |
faea38e7 FB |
2784 | |
2785 | nb_sns = bdrv_snapshot_list(bs, &sn_tab); | |
2786 | if (nb_sns <= 0) | |
2787 | return; | |
2788 | printf("Snapshot list:\n"); | |
e1ce7d74 | 2789 | bdrv_snapshot_dump(NULL); |
5b917044 | 2790 | printf("\n"); |
faea38e7 FB |
2791 | for(i = 0; i < nb_sns; i++) { |
2792 | sn = &sn_tab[i]; | |
e1ce7d74 | 2793 | bdrv_snapshot_dump(sn); |
5b917044 | 2794 | printf("\n"); |
faea38e7 | 2795 | } |
7267c094 | 2796 | g_free(sn_tab); |
faea38e7 FB |
2797 | } |
2798 | ||
9699bf0d SH |
2799 | static void dump_json_image_info_list(ImageInfoList *list) |
2800 | { | |
eab3a467 | 2801 | GString *str; |
9699bf0d | 2802 | QObject *obj; |
7d5e199a | 2803 | Visitor *v = qobject_output_visitor_new(&obj); |
3b098d56 EB |
2804 | |
2805 | visit_type_ImageInfoList(v, NULL, &list, &error_abort); | |
2806 | visit_complete(v, &obj); | |
6589f459 | 2807 | str = qobject_to_json_pretty(obj, true); |
9699bf0d | 2808 | assert(str != NULL); |
eab3a467 | 2809 | printf("%s\n", str->str); |
cb3e7f08 | 2810 | qobject_unref(obj); |
3b098d56 | 2811 | visit_free(v); |
eab3a467 | 2812 | g_string_free(str, true); |
9699bf0d SH |
2813 | } |
2814 | ||
c054b3fd BC |
2815 | static void dump_json_image_info(ImageInfo *info) |
2816 | { | |
eab3a467 | 2817 | GString *str; |
c054b3fd | 2818 | QObject *obj; |
7d5e199a | 2819 | Visitor *v = qobject_output_visitor_new(&obj); |
3b098d56 EB |
2820 | |
2821 | visit_type_ImageInfo(v, NULL, &info, &error_abort); | |
2822 | visit_complete(v, &obj); | |
6589f459 | 2823 | str = qobject_to_json_pretty(obj, true); |
c054b3fd | 2824 | assert(str != NULL); |
eab3a467 | 2825 | printf("%s\n", str->str); |
cb3e7f08 | 2826 | qobject_unref(obj); |
3b098d56 | 2827 | visit_free(v); |
eab3a467 | 2828 | g_string_free(str, true); |
c054b3fd BC |
2829 | } |
2830 | ||
9699bf0d SH |
2831 | static void dump_human_image_info_list(ImageInfoList *list) |
2832 | { | |
2833 | ImageInfoList *elem; | |
2834 | bool delim = false; | |
2835 | ||
2836 | for (elem = list; elem; elem = elem->next) { | |
2837 | if (delim) { | |
2838 | printf("\n"); | |
2839 | } | |
2840 | delim = true; | |
2841 | ||
e1ce7d74 | 2842 | bdrv_image_info_dump(elem->value); |
9699bf0d SH |
2843 | } |
2844 | } | |
2845 | ||
2846 | static gboolean str_equal_func(gconstpointer a, gconstpointer b) | |
2847 | { | |
2848 | return strcmp(a, b) == 0; | |
2849 | } | |
2850 | ||
2851 | /** | |
2852 | * Open an image file chain and return an ImageInfoList | |
2853 | * | |
2854 | * @filename: topmost image filename | |
2855 | * @fmt: topmost image format (may be NULL to autodetect) | |
2856 | * @chain: true - enumerate entire backing file chain | |
2857 | * false - only topmost image file | |
2858 | * | |
2859 | * Returns a list of ImageInfo objects or NULL if there was an error opening an | |
2860 | * image file. If there was an error a message will have been printed to | |
2861 | * stderr. | |
2862 | */ | |
eb769f74 DB |
2863 | static ImageInfoList *collect_image_info_list(bool image_opts, |
2864 | const char *filename, | |
9699bf0d | 2865 | const char *fmt, |
335e9937 | 2866 | bool chain, bool force_share) |
9699bf0d SH |
2867 | { |
2868 | ImageInfoList *head = NULL; | |
c3033fd3 | 2869 | ImageInfoList **tail = &head; |
9699bf0d | 2870 | GHashTable *filenames; |
43526ec8 | 2871 | Error *err = NULL; |
9699bf0d SH |
2872 | |
2873 | filenames = g_hash_table_new_full(g_str_hash, str_equal_func, NULL, NULL); | |
2874 | ||
2875 | while (filename) { | |
26f54e9a | 2876 | BlockBackend *blk; |
9699bf0d SH |
2877 | BlockDriverState *bs; |
2878 | ImageInfo *info; | |
9699bf0d SH |
2879 | |
2880 | if (g_hash_table_lookup_extended(filenames, filename, NULL, NULL)) { | |
2881 | error_report("Backing file '%s' creates an infinite loop.", | |
2882 | filename); | |
2883 | goto err; | |
2884 | } | |
2885 | g_hash_table_insert(filenames, (gpointer)filename, NULL); | |
2886 | ||
efaa7c4e | 2887 | blk = img_open(image_opts, filename, fmt, |
335e9937 FZ |
2888 | BDRV_O_NO_BACKING | BDRV_O_NO_IO, false, false, |
2889 | force_share); | |
7e7d56d9 | 2890 | if (!blk) { |
9699bf0d SH |
2891 | goto err; |
2892 | } | |
7e7d56d9 | 2893 | bs = blk_bs(blk); |
9699bf0d | 2894 | |
43526ec8 | 2895 | bdrv_query_image_info(bs, &info, &err); |
84d18f06 | 2896 | if (err) { |
565f65d2 | 2897 | error_report_err(err); |
26f54e9a | 2898 | blk_unref(blk); |
43526ec8 | 2899 | goto err; |
fb0ed453 | 2900 | } |
9699bf0d | 2901 | |
c3033fd3 | 2902 | QAPI_LIST_APPEND(tail, info); |
9699bf0d | 2903 | |
26f54e9a | 2904 | blk_unref(blk); |
9699bf0d | 2905 | |
0da7d13a | 2906 | /* Clear parameters that only apply to the topmost image */ |
9699bf0d | 2907 | filename = fmt = NULL; |
0da7d13a SH |
2908 | image_opts = false; |
2909 | ||
9699bf0d SH |
2910 | if (chain) { |
2911 | if (info->has_full_backing_filename) { | |
2912 | filename = info->full_backing_filename; | |
2913 | } else if (info->has_backing_filename) { | |
92d617ab JS |
2914 | error_report("Could not determine absolute backing filename," |
2915 | " but backing filename '%s' present", | |
2916 | info->backing_filename); | |
2917 | goto err; | |
9699bf0d SH |
2918 | } |
2919 | if (info->has_backing_filename_format) { | |
2920 | fmt = info->backing_filename_format; | |
2921 | } | |
2922 | } | |
2923 | } | |
2924 | g_hash_table_destroy(filenames); | |
2925 | return head; | |
2926 | ||
2927 | err: | |
2928 | qapi_free_ImageInfoList(head); | |
2929 | g_hash_table_destroy(filenames); | |
2930 | return NULL; | |
2931 | } | |
2932 | ||
c054b3fd BC |
2933 | static int img_info(int argc, char **argv) |
2934 | { | |
2935 | int c; | |
2936 | OutputFormat output_format = OFORMAT_HUMAN; | |
9699bf0d | 2937 | bool chain = false; |
c054b3fd | 2938 | const char *filename, *fmt, *output; |
9699bf0d | 2939 | ImageInfoList *list; |
eb769f74 | 2940 | bool image_opts = false; |
335e9937 | 2941 | bool force_share = false; |
c054b3fd | 2942 | |
ea2384d3 | 2943 | fmt = NULL; |
c054b3fd | 2944 | output = NULL; |
ea2384d3 | 2945 | for(;;) { |
c054b3fd BC |
2946 | int option_index = 0; |
2947 | static const struct option long_options[] = { | |
2948 | {"help", no_argument, 0, 'h'}, | |
2949 | {"format", required_argument, 0, 'f'}, | |
2950 | {"output", required_argument, 0, OPTION_OUTPUT}, | |
9699bf0d | 2951 | {"backing-chain", no_argument, 0, OPTION_BACKING_CHAIN}, |
3babeb15 | 2952 | {"object", required_argument, 0, OPTION_OBJECT}, |
eb769f74 | 2953 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 2954 | {"force-share", no_argument, 0, 'U'}, |
c054b3fd BC |
2955 | {0, 0, 0, 0} |
2956 | }; | |
335e9937 | 2957 | c = getopt_long(argc, argv, ":f:hU", |
c054b3fd | 2958 | long_options, &option_index); |
b8fb60da | 2959 | if (c == -1) { |
ea2384d3 | 2960 | break; |
b8fb60da | 2961 | } |
ea2384d3 | 2962 | switch(c) { |
c9192973 SH |
2963 | case ':': |
2964 | missing_argument(argv[optind - 1]); | |
2965 | break; | |
ef87394c | 2966 | case '?': |
c9192973 SH |
2967 | unrecognized_option(argv[optind - 1]); |
2968 | break; | |
ea2384d3 FB |
2969 | case 'h': |
2970 | help(); | |
2971 | break; | |
2972 | case 'f': | |
2973 | fmt = optarg; | |
2974 | break; | |
335e9937 FZ |
2975 | case 'U': |
2976 | force_share = true; | |
2977 | break; | |
c054b3fd BC |
2978 | case OPTION_OUTPUT: |
2979 | output = optarg; | |
2980 | break; | |
9699bf0d SH |
2981 | case OPTION_BACKING_CHAIN: |
2982 | chain = true; | |
2983 | break; | |
99b1e646 KW |
2984 | case OPTION_OBJECT: |
2985 | user_creatable_process_cmdline(optarg); | |
2986 | break; | |
eb769f74 DB |
2987 | case OPTION_IMAGE_OPTS: |
2988 | image_opts = true; | |
2989 | break; | |
ea2384d3 FB |
2990 | } |
2991 | } | |
fc11eb26 | 2992 | if (optind != argc - 1) { |
ac1307ab | 2993 | error_exit("Expecting one image file name"); |
b8fb60da | 2994 | } |
ea2384d3 FB |
2995 | filename = argv[optind++]; |
2996 | ||
c054b3fd BC |
2997 | if (output && !strcmp(output, "json")) { |
2998 | output_format = OFORMAT_JSON; | |
2999 | } else if (output && !strcmp(output, "human")) { | |
3000 | output_format = OFORMAT_HUMAN; | |
3001 | } else if (output) { | |
3002 | error_report("--output must be used with human or json as argument."); | |
c2abccec MK |
3003 | return 1; |
3004 | } | |
c054b3fd | 3005 | |
335e9937 FZ |
3006 | list = collect_image_info_list(image_opts, filename, fmt, chain, |
3007 | force_share); | |
9699bf0d | 3008 | if (!list) { |
c2abccec | 3009 | return 1; |
faea38e7 | 3010 | } |
c054b3fd | 3011 | |
c054b3fd BC |
3012 | switch (output_format) { |
3013 | case OFORMAT_HUMAN: | |
9699bf0d | 3014 | dump_human_image_info_list(list); |
c054b3fd BC |
3015 | break; |
3016 | case OFORMAT_JSON: | |
9699bf0d SH |
3017 | if (chain) { |
3018 | dump_json_image_info_list(list); | |
3019 | } else { | |
3020 | dump_json_image_info(list->value); | |
3021 | } | |
c054b3fd | 3022 | break; |
faea38e7 | 3023 | } |
c054b3fd | 3024 | |
9699bf0d | 3025 | qapi_free_ImageInfoList(list); |
ea2384d3 FB |
3026 | return 0; |
3027 | } | |
3028 | ||
30065d14 EB |
3029 | static int dump_map_entry(OutputFormat output_format, MapEntry *e, |
3030 | MapEntry *next) | |
4c93a13b PB |
3031 | { |
3032 | switch (output_format) { | |
3033 | case OFORMAT_HUMAN: | |
16b0d555 | 3034 | if (e->data && !e->has_offset) { |
4c93a13b | 3035 | error_report("File contains external, encrypted or compressed clusters."); |
30065d14 | 3036 | return -1; |
4c93a13b | 3037 | } |
16b0d555 | 3038 | if (e->data && !e->zero) { |
4c93a13b | 3039 | printf("%#-16"PRIx64"%#-16"PRIx64"%#-16"PRIx64"%s\n", |
16b0d555 FZ |
3040 | e->start, e->length, |
3041 | e->has_offset ? e->offset : 0, | |
3042 | e->has_filename ? e->filename : ""); | |
4c93a13b PB |
3043 | } |
3044 | /* This format ignores the distinction between 0, ZERO and ZERO|DATA. | |
3045 | * Modify the flags here to allow more coalescing. | |
3046 | */ | |
16b0d555 FZ |
3047 | if (next && (!next->data || next->zero)) { |
3048 | next->data = false; | |
3049 | next->zero = true; | |
4c93a13b PB |
3050 | } |
3051 | break; | |
3052 | case OFORMAT_JSON: | |
e46c0b18 | 3053 | printf("{ \"start\": %"PRId64", \"length\": %"PRId64"," |
8417e137 EB |
3054 | " \"depth\": %"PRId64", \"present\": %s, \"zero\": %s," |
3055 | " \"data\": %s", e->start, e->length, e->depth, | |
3056 | e->present ? "true" : "false", | |
16b0d555 FZ |
3057 | e->zero ? "true" : "false", |
3058 | e->data ? "true" : "false"); | |
3059 | if (e->has_offset) { | |
c745bfb4 | 3060 | printf(", \"offset\": %"PRId64"", e->offset); |
4c93a13b PB |
3061 | } |
3062 | putchar('}'); | |
3063 | ||
e46c0b18 EM |
3064 | if (next) { |
3065 | puts(","); | |
4c93a13b PB |
3066 | } |
3067 | break; | |
3068 | } | |
30065d14 | 3069 | return 0; |
4c93a13b PB |
3070 | } |
3071 | ||
5e344dd8 EB |
3072 | static int get_block_status(BlockDriverState *bs, int64_t offset, |
3073 | int64_t bytes, MapEntry *e) | |
4c93a13b | 3074 | { |
237d78f8 | 3075 | int ret; |
4c93a13b | 3076 | int depth; |
67a0fd2a | 3077 | BlockDriverState *file; |
2875645b | 3078 | bool has_offset; |
237d78f8 | 3079 | int64_t map; |
f30c66ba | 3080 | char *filename = NULL; |
4c93a13b PB |
3081 | |
3082 | /* As an optimization, we could cache the current range of unallocated | |
3083 | * clusters in each file of the chain, and avoid querying the same | |
3084 | * range repeatedly. | |
3085 | */ | |
3086 | ||
3087 | depth = 0; | |
3088 | for (;;) { | |
4a2061e6 | 3089 | bs = bdrv_skip_filters(bs); |
237d78f8 | 3090 | ret = bdrv_block_status(bs, offset, bytes, &bytes, &map, &file); |
4c93a13b PB |
3091 | if (ret < 0) { |
3092 | return ret; | |
3093 | } | |
237d78f8 | 3094 | assert(bytes); |
4c93a13b PB |
3095 | if (ret & (BDRV_BLOCK_ZERO|BDRV_BLOCK_DATA)) { |
3096 | break; | |
3097 | } | |
4a2061e6 | 3098 | bs = bdrv_cow_bs(bs); |
4c93a13b PB |
3099 | if (bs == NULL) { |
3100 | ret = 0; | |
3101 | break; | |
3102 | } | |
3103 | ||
3104 | depth++; | |
3105 | } | |
3106 | ||
2875645b JS |
3107 | has_offset = !!(ret & BDRV_BLOCK_OFFSET_VALID); |
3108 | ||
f30c66ba HR |
3109 | if (file && has_offset) { |
3110 | bdrv_refresh_filename(file); | |
3111 | filename = file->filename; | |
3112 | } | |
3113 | ||
2875645b | 3114 | *e = (MapEntry) { |
5e344dd8 | 3115 | .start = offset, |
237d78f8 | 3116 | .length = bytes, |
2875645b JS |
3117 | .data = !!(ret & BDRV_BLOCK_DATA), |
3118 | .zero = !!(ret & BDRV_BLOCK_ZERO), | |
237d78f8 | 3119 | .offset = map, |
2875645b JS |
3120 | .has_offset = has_offset, |
3121 | .depth = depth, | |
8417e137 | 3122 | .present = !!(ret & BDRV_BLOCK_ALLOCATED), |
f30c66ba HR |
3123 | .has_filename = filename, |
3124 | .filename = filename, | |
2875645b JS |
3125 | }; |
3126 | ||
4c93a13b PB |
3127 | return 0; |
3128 | } | |
3129 | ||
16b0d555 FZ |
3130 | static inline bool entry_mergeable(const MapEntry *curr, const MapEntry *next) |
3131 | { | |
3132 | if (curr->length == 0) { | |
3133 | return false; | |
3134 | } | |
3135 | if (curr->zero != next->zero || | |
3136 | curr->data != next->data || | |
3137 | curr->depth != next->depth || | |
8417e137 | 3138 | curr->present != next->present || |
16b0d555 FZ |
3139 | curr->has_filename != next->has_filename || |
3140 | curr->has_offset != next->has_offset) { | |
3141 | return false; | |
3142 | } | |
3143 | if (curr->has_filename && strcmp(curr->filename, next->filename)) { | |
3144 | return false; | |
3145 | } | |
3146 | if (curr->has_offset && curr->offset + curr->length != next->offset) { | |
3147 | return false; | |
3148 | } | |
3149 | return true; | |
3150 | } | |
3151 | ||
4c93a13b PB |
3152 | static int img_map(int argc, char **argv) |
3153 | { | |
3154 | int c; | |
3155 | OutputFormat output_format = OFORMAT_HUMAN; | |
26f54e9a | 3156 | BlockBackend *blk; |
4c93a13b PB |
3157 | BlockDriverState *bs; |
3158 | const char *filename, *fmt, *output; | |
3159 | int64_t length; | |
3160 | MapEntry curr = { .length = 0 }, next; | |
3161 | int ret = 0; | |
eb769f74 | 3162 | bool image_opts = false; |
335e9937 | 3163 | bool force_share = false; |
c0469496 EM |
3164 | int64_t start_offset = 0; |
3165 | int64_t max_length = -1; | |
4c93a13b PB |
3166 | |
3167 | fmt = NULL; | |
3168 | output = NULL; | |
3169 | for (;;) { | |
3170 | int option_index = 0; | |
3171 | static const struct option long_options[] = { | |
3172 | {"help", no_argument, 0, 'h'}, | |
3173 | {"format", required_argument, 0, 'f'}, | |
3174 | {"output", required_argument, 0, OPTION_OUTPUT}, | |
3babeb15 | 3175 | {"object", required_argument, 0, OPTION_OBJECT}, |
eb769f74 | 3176 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 3177 | {"force-share", no_argument, 0, 'U'}, |
c0469496 EM |
3178 | {"start-offset", required_argument, 0, 's'}, |
3179 | {"max-length", required_argument, 0, 'l'}, | |
4c93a13b PB |
3180 | {0, 0, 0, 0} |
3181 | }; | |
c0469496 | 3182 | c = getopt_long(argc, argv, ":f:s:l:hU", |
4c93a13b PB |
3183 | long_options, &option_index); |
3184 | if (c == -1) { | |
3185 | break; | |
3186 | } | |
3187 | switch (c) { | |
c9192973 SH |
3188 | case ':': |
3189 | missing_argument(argv[optind - 1]); | |
3190 | break; | |
4c93a13b | 3191 | case '?': |
c9192973 SH |
3192 | unrecognized_option(argv[optind - 1]); |
3193 | break; | |
4c93a13b PB |
3194 | case 'h': |
3195 | help(); | |
3196 | break; | |
3197 | case 'f': | |
3198 | fmt = optarg; | |
3199 | break; | |
335e9937 FZ |
3200 | case 'U': |
3201 | force_share = true; | |
3202 | break; | |
4c93a13b PB |
3203 | case OPTION_OUTPUT: |
3204 | output = optarg; | |
3205 | break; | |
c0469496 EM |
3206 | case 's': |
3207 | start_offset = cvtnum("start offset", optarg); | |
3208 | if (start_offset < 0) { | |
3209 | return 1; | |
3210 | } | |
3211 | break; | |
3212 | case 'l': | |
3213 | max_length = cvtnum("max length", optarg); | |
3214 | if (max_length < 0) { | |
3215 | return 1; | |
3216 | } | |
3217 | break; | |
99b1e646 KW |
3218 | case OPTION_OBJECT: |
3219 | user_creatable_process_cmdline(optarg); | |
3220 | break; | |
eb769f74 DB |
3221 | case OPTION_IMAGE_OPTS: |
3222 | image_opts = true; | |
3223 | break; | |
4c93a13b PB |
3224 | } |
3225 | } | |
ac1307ab FZ |
3226 | if (optind != argc - 1) { |
3227 | error_exit("Expecting one image file name"); | |
4c93a13b | 3228 | } |
ac1307ab | 3229 | filename = argv[optind]; |
4c93a13b PB |
3230 | |
3231 | if (output && !strcmp(output, "json")) { | |
3232 | output_format = OFORMAT_JSON; | |
3233 | } else if (output && !strcmp(output, "human")) { | |
3234 | output_format = OFORMAT_HUMAN; | |
3235 | } else if (output) { | |
3236 | error_report("--output must be used with human or json as argument."); | |
3237 | return 1; | |
3238 | } | |
3239 | ||
335e9937 | 3240 | blk = img_open(image_opts, filename, fmt, 0, false, false, force_share); |
7e7d56d9 MA |
3241 | if (!blk) { |
3242 | return 1; | |
4c93a13b | 3243 | } |
7e7d56d9 | 3244 | bs = blk_bs(blk); |
4c93a13b PB |
3245 | |
3246 | if (output_format == OFORMAT_HUMAN) { | |
3247 | printf("%-16s%-16s%-16s%s\n", "Offset", "Length", "Mapped to", "File"); | |
e46c0b18 EM |
3248 | } else if (output_format == OFORMAT_JSON) { |
3249 | putchar('['); | |
4c93a13b PB |
3250 | } |
3251 | ||
f1d3cd79 | 3252 | length = blk_getlength(blk); |
8f282e83 EM |
3253 | if (length < 0) { |
3254 | error_report("Failed to get size for '%s'", filename); | |
3255 | return 1; | |
3256 | } | |
c0469496 EM |
3257 | if (max_length != -1) { |
3258 | length = MIN(start_offset + max_length, length); | |
3259 | } | |
8f282e83 | 3260 | |
c0469496 | 3261 | curr.start = start_offset; |
4c93a13b | 3262 | while (curr.start + curr.length < length) { |
5e344dd8 | 3263 | int64_t offset = curr.start + curr.length; |
d0ceea88 | 3264 | int64_t n = length - offset; |
4c93a13b | 3265 | |
5e344dd8 | 3266 | ret = get_block_status(bs, offset, n, &next); |
4c93a13b PB |
3267 | if (ret < 0) { |
3268 | error_report("Could not read file metadata: %s", strerror(-ret)); | |
3269 | goto out; | |
3270 | } | |
3271 | ||
16b0d555 | 3272 | if (entry_mergeable(&curr, &next)) { |
4c93a13b PB |
3273 | curr.length += next.length; |
3274 | continue; | |
3275 | } | |
3276 | ||
3277 | if (curr.length > 0) { | |
30065d14 EB |
3278 | ret = dump_map_entry(output_format, &curr, &next); |
3279 | if (ret < 0) { | |
3280 | goto out; | |
3281 | } | |
4c93a13b PB |
3282 | } |
3283 | curr = next; | |
3284 | } | |
3285 | ||
30065d14 | 3286 | ret = dump_map_entry(output_format, &curr, NULL); |
e46c0b18 EM |
3287 | if (output_format == OFORMAT_JSON) { |
3288 | puts("]"); | |
3289 | } | |
4c93a13b PB |
3290 | |
3291 | out: | |
26f54e9a | 3292 | blk_unref(blk); |
4c93a13b PB |
3293 | return ret < 0; |
3294 | } | |
3295 | ||
f7b4a940 AL |
3296 | #define SNAPSHOT_LIST 1 |
3297 | #define SNAPSHOT_CREATE 2 | |
3298 | #define SNAPSHOT_APPLY 3 | |
3299 | #define SNAPSHOT_DELETE 4 | |
3300 | ||
153859be | 3301 | static int img_snapshot(int argc, char **argv) |
f7b4a940 | 3302 | { |
26f54e9a | 3303 | BlockBackend *blk; |
f7b4a940 AL |
3304 | BlockDriverState *bs; |
3305 | QEMUSnapshotInfo sn; | |
3306 | char *filename, *snapshot_name = NULL; | |
c2abccec | 3307 | int c, ret = 0, bdrv_oflags; |
f7b4a940 | 3308 | int action = 0; |
f382d43a | 3309 | bool quiet = false; |
a89d89d3 | 3310 | Error *err = NULL; |
eb769f74 | 3311 | bool image_opts = false; |
335e9937 | 3312 | bool force_share = false; |
f793dde0 | 3313 | int64_t rt; |
f7b4a940 | 3314 | |
ce099547 | 3315 | bdrv_oflags = BDRV_O_RDWR; |
f7b4a940 AL |
3316 | /* Parse commandline parameters */ |
3317 | for(;;) { | |
3babeb15 DB |
3318 | static const struct option long_options[] = { |
3319 | {"help", no_argument, 0, 'h'}, | |
3320 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 3321 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 3322 | {"force-share", no_argument, 0, 'U'}, |
3babeb15 DB |
3323 | {0, 0, 0, 0} |
3324 | }; | |
335e9937 | 3325 | c = getopt_long(argc, argv, ":la:c:d:hqU", |
3babeb15 | 3326 | long_options, NULL); |
b8fb60da | 3327 | if (c == -1) { |
f7b4a940 | 3328 | break; |
b8fb60da | 3329 | } |
f7b4a940 | 3330 | switch(c) { |
c9192973 SH |
3331 | case ':': |
3332 | missing_argument(argv[optind - 1]); | |
3333 | break; | |
ef87394c | 3334 | case '?': |
c9192973 SH |
3335 | unrecognized_option(argv[optind - 1]); |
3336 | break; | |
f7b4a940 AL |
3337 | case 'h': |
3338 | help(); | |
153859be | 3339 | return 0; |
f7b4a940 AL |
3340 | case 'l': |
3341 | if (action) { | |
ac1307ab | 3342 | error_exit("Cannot mix '-l', '-a', '-c', '-d'"); |
153859be | 3343 | return 0; |
f7b4a940 AL |
3344 | } |
3345 | action = SNAPSHOT_LIST; | |
f5edb014 | 3346 | bdrv_oflags &= ~BDRV_O_RDWR; /* no need for RW */ |
f7b4a940 AL |
3347 | break; |
3348 | case 'a': | |
3349 | if (action) { | |
ac1307ab | 3350 | error_exit("Cannot mix '-l', '-a', '-c', '-d'"); |
153859be | 3351 | return 0; |
f7b4a940 AL |
3352 | } |
3353 | action = SNAPSHOT_APPLY; | |
3354 | snapshot_name = optarg; | |
3355 | break; | |
3356 | case 'c': | |
3357 | if (action) { | |
ac1307ab | 3358 | error_exit("Cannot mix '-l', '-a', '-c', '-d'"); |
153859be | 3359 | return 0; |
f7b4a940 AL |
3360 | } |
3361 | action = SNAPSHOT_CREATE; | |
3362 | snapshot_name = optarg; | |
3363 | break; | |
3364 | case 'd': | |
3365 | if (action) { | |
ac1307ab | 3366 | error_exit("Cannot mix '-l', '-a', '-c', '-d'"); |
153859be | 3367 | return 0; |
f7b4a940 AL |
3368 | } |
3369 | action = SNAPSHOT_DELETE; | |
3370 | snapshot_name = optarg; | |
3371 | break; | |
f382d43a MR |
3372 | case 'q': |
3373 | quiet = true; | |
3374 | break; | |
335e9937 FZ |
3375 | case 'U': |
3376 | force_share = true; | |
3377 | break; | |
99b1e646 KW |
3378 | case OPTION_OBJECT: |
3379 | user_creatable_process_cmdline(optarg); | |
3380 | break; | |
eb769f74 DB |
3381 | case OPTION_IMAGE_OPTS: |
3382 | image_opts = true; | |
3383 | break; | |
f7b4a940 AL |
3384 | } |
3385 | } | |
3386 | ||
fc11eb26 | 3387 | if (optind != argc - 1) { |
ac1307ab | 3388 | error_exit("Expecting one image file name"); |
b8fb60da | 3389 | } |
f7b4a940 AL |
3390 | filename = argv[optind++]; |
3391 | ||
3392 | /* Open the image */ | |
335e9937 FZ |
3393 | blk = img_open(image_opts, filename, NULL, bdrv_oflags, false, quiet, |
3394 | force_share); | |
7e7d56d9 MA |
3395 | if (!blk) { |
3396 | return 1; | |
c2abccec | 3397 | } |
7e7d56d9 | 3398 | bs = blk_bs(blk); |
f7b4a940 AL |
3399 | |
3400 | /* Perform the requested action */ | |
3401 | switch(action) { | |
3402 | case SNAPSHOT_LIST: | |
3403 | dump_snapshots(bs); | |
3404 | break; | |
3405 | ||
3406 | case SNAPSHOT_CREATE: | |
3407 | memset(&sn, 0, sizeof(sn)); | |
3408 | pstrcpy(sn.name, sizeof(sn.name), snapshot_name); | |
3409 | ||
f793dde0 MAL |
3410 | rt = g_get_real_time(); |
3411 | sn.date_sec = rt / G_USEC_PER_SEC; | |
3412 | sn.date_nsec = (rt % G_USEC_PER_SEC) * 1000; | |
f7b4a940 AL |
3413 | |
3414 | ret = bdrv_snapshot_create(bs, &sn); | |
b8fb60da | 3415 | if (ret) { |
15654a6d | 3416 | error_report("Could not create snapshot '%s': %d (%s)", |
f7b4a940 | 3417 | snapshot_name, ret, strerror(-ret)); |
b8fb60da | 3418 | } |
f7b4a940 AL |
3419 | break; |
3420 | ||
3421 | case SNAPSHOT_APPLY: | |
0b62bcbc | 3422 | ret = bdrv_snapshot_goto(bs, snapshot_name, &err); |
b8fb60da | 3423 | if (ret) { |
0b62bcbc KW |
3424 | error_reportf_err(err, "Could not apply snapshot '%s': ", |
3425 | snapshot_name); | |
b8fb60da | 3426 | } |
f7b4a940 AL |
3427 | break; |
3428 | ||
3429 | case SNAPSHOT_DELETE: | |
8c04093c DHB |
3430 | ret = bdrv_snapshot_find(bs, &sn, snapshot_name); |
3431 | if (ret < 0) { | |
3432 | error_report("Could not delete snapshot '%s': snapshot not " | |
3433 | "found", snapshot_name); | |
a89d89d3 | 3434 | ret = 1; |
8c04093c DHB |
3435 | } else { |
3436 | ret = bdrv_snapshot_delete(bs, sn.id_str, sn.name, &err); | |
3437 | if (ret < 0) { | |
3438 | error_reportf_err(err, "Could not delete snapshot '%s': ", | |
3439 | snapshot_name); | |
3440 | ret = 1; | |
3441 | } | |
b8fb60da | 3442 | } |
f7b4a940 AL |
3443 | break; |
3444 | } | |
3445 | ||
3446 | /* Cleanup */ | |
26f54e9a | 3447 | blk_unref(blk); |
c2abccec MK |
3448 | if (ret) { |
3449 | return 1; | |
3450 | } | |
153859be | 3451 | return 0; |
f7b4a940 AL |
3452 | } |
3453 | ||
3e85c6fd KW |
3454 | static int img_rebase(int argc, char **argv) |
3455 | { | |
26f54e9a | 3456 | BlockBackend *blk = NULL, *blk_old_backing = NULL, *blk_new_backing = NULL; |
396374ca PB |
3457 | uint8_t *buf_old = NULL; |
3458 | uint8_t *buf_new = NULL; | |
863cc78f | 3459 | BlockDriverState *bs = NULL, *prefix_chain_bs = NULL; |
4a2061e6 | 3460 | BlockDriverState *unfiltered_bs; |
3e85c6fd | 3461 | char *filename; |
40055951 HR |
3462 | const char *fmt, *cache, *src_cache, *out_basefmt, *out_baseimg; |
3463 | int c, flags, src_flags, ret; | |
ce099547 | 3464 | bool writethrough, src_writethrough; |
3e85c6fd | 3465 | int unsafe = 0; |
335e9937 | 3466 | bool force_share = false; |
6b837bc4 | 3467 | int progress = 0; |
f382d43a | 3468 | bool quiet = false; |
34b5d2c6 | 3469 | Error *local_err = NULL; |
eb769f74 | 3470 | bool image_opts = false; |
3e85c6fd KW |
3471 | |
3472 | /* Parse commandline parameters */ | |
e53dbee0 | 3473 | fmt = NULL; |
661a0f71 | 3474 | cache = BDRV_DEFAULT_CACHE; |
40055951 | 3475 | src_cache = BDRV_DEFAULT_CACHE; |
3e85c6fd KW |
3476 | out_baseimg = NULL; |
3477 | out_basefmt = NULL; | |
3e85c6fd | 3478 | for(;;) { |
3babeb15 DB |
3479 | static const struct option long_options[] = { |
3480 | {"help", no_argument, 0, 'h'}, | |
3481 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 3482 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 3483 | {"force-share", no_argument, 0, 'U'}, |
3babeb15 DB |
3484 | {0, 0, 0, 0} |
3485 | }; | |
335e9937 | 3486 | c = getopt_long(argc, argv, ":hf:F:b:upt:T:qU", |
3babeb15 | 3487 | long_options, NULL); |
b8fb60da | 3488 | if (c == -1) { |
3e85c6fd | 3489 | break; |
b8fb60da | 3490 | } |
3e85c6fd | 3491 | switch(c) { |
c9192973 SH |
3492 | case ':': |
3493 | missing_argument(argv[optind - 1]); | |
3494 | break; | |
ef87394c | 3495 | case '?': |
c9192973 SH |
3496 | unrecognized_option(argv[optind - 1]); |
3497 | break; | |
3e85c6fd KW |
3498 | case 'h': |
3499 | help(); | |
3500 | return 0; | |
e53dbee0 KW |
3501 | case 'f': |
3502 | fmt = optarg; | |
3503 | break; | |
3e85c6fd KW |
3504 | case 'F': |
3505 | out_basefmt = optarg; | |
3506 | break; | |
3507 | case 'b': | |
3508 | out_baseimg = optarg; | |
3509 | break; | |
3510 | case 'u': | |
3511 | unsafe = 1; | |
3512 | break; | |
6b837bc4 JS |
3513 | case 'p': |
3514 | progress = 1; | |
3515 | break; | |
661a0f71 FS |
3516 | case 't': |
3517 | cache = optarg; | |
3518 | break; | |
40055951 HR |
3519 | case 'T': |
3520 | src_cache = optarg; | |
3521 | break; | |
f382d43a MR |
3522 | case 'q': |
3523 | quiet = true; | |
3524 | break; | |
99b1e646 KW |
3525 | case OPTION_OBJECT: |
3526 | user_creatable_process_cmdline(optarg); | |
3527 | break; | |
eb769f74 DB |
3528 | case OPTION_IMAGE_OPTS: |
3529 | image_opts = true; | |
3530 | break; | |
335e9937 FZ |
3531 | case 'U': |
3532 | force_share = true; | |
3533 | break; | |
3e85c6fd KW |
3534 | } |
3535 | } | |
3536 | ||
f382d43a MR |
3537 | if (quiet) { |
3538 | progress = 0; | |
3539 | } | |
3540 | ||
ac1307ab FZ |
3541 | if (optind != argc - 1) { |
3542 | error_exit("Expecting one image file name"); | |
3543 | } | |
3544 | if (!unsafe && !out_baseimg) { | |
3545 | error_exit("Must specify backing file (-b) or use unsafe mode (-u)"); | |
b8fb60da | 3546 | } |
3e85c6fd KW |
3547 | filename = argv[optind++]; |
3548 | ||
6b837bc4 JS |
3549 | qemu_progress_init(progress, 2.0); |
3550 | qemu_progress_print(0, 100); | |
3551 | ||
661a0f71 | 3552 | flags = BDRV_O_RDWR | (unsafe ? BDRV_O_NO_BACKING : 0); |
ce099547 | 3553 | ret = bdrv_parse_cache_mode(cache, &flags, &writethrough); |
661a0f71 FS |
3554 | if (ret < 0) { |
3555 | error_report("Invalid cache option: %s", cache); | |
40ed35a3 | 3556 | goto out; |
661a0f71 FS |
3557 | } |
3558 | ||
ce099547 KW |
3559 | src_flags = 0; |
3560 | ret = bdrv_parse_cache_mode(src_cache, &src_flags, &src_writethrough); | |
40055951 HR |
3561 | if (ret < 0) { |
3562 | error_report("Invalid source cache option: %s", src_cache); | |
40ed35a3 | 3563 | goto out; |
40055951 HR |
3564 | } |
3565 | ||
ce099547 KW |
3566 | /* The source files are opened read-only, don't care about WCE */ |
3567 | assert((src_flags & BDRV_O_RDWR) == 0); | |
3568 | (void) src_writethrough; | |
3569 | ||
3e85c6fd KW |
3570 | /* |
3571 | * Open the images. | |
3572 | * | |
3573 | * Ignore the old backing file for unsafe rebase in case we want to correct | |
3574 | * the reference to a renamed or moved backing file. | |
3575 | */ | |
335e9937 FZ |
3576 | blk = img_open(image_opts, filename, fmt, flags, writethrough, quiet, |
3577 | false); | |
7e7d56d9 | 3578 | if (!blk) { |
40ed35a3 SH |
3579 | ret = -1; |
3580 | goto out; | |
c2abccec | 3581 | } |
7e7d56d9 | 3582 | bs = blk_bs(blk); |
3e85c6fd | 3583 | |
4a2061e6 HR |
3584 | unfiltered_bs = bdrv_skip_filters(bs); |
3585 | ||
3e85c6fd | 3586 | if (out_basefmt != NULL) { |
644483d9 | 3587 | if (bdrv_find_format(out_basefmt) == NULL) { |
15654a6d | 3588 | error_report("Invalid format name: '%s'", out_basefmt); |
c2abccec MK |
3589 | ret = -1; |
3590 | goto out; | |
3e85c6fd KW |
3591 | } |
3592 | } | |
3593 | ||
3594 | /* For safe rebasing we need to compare old and new backing file */ | |
40ed35a3 | 3595 | if (!unsafe) { |
644483d9 | 3596 | QDict *options = NULL; |
4a2061e6 | 3597 | BlockDriverState *base_bs = bdrv_cow_bs(unfiltered_bs); |
644483d9 | 3598 | |
4ebe0617 | 3599 | if (base_bs) { |
d861ab3a KW |
3600 | blk_old_backing = blk_new(qemu_get_aio_context(), |
3601 | BLK_PERM_CONSISTENT_READ, | |
4ebe0617 SE |
3602 | BLK_PERM_ALL); |
3603 | ret = blk_insert_bs(blk_old_backing, base_bs, | |
3604 | &local_err); | |
3605 | if (ret < 0) { | |
35ddd930 | 3606 | error_reportf_err(local_err, |
4ebe0617 SE |
3607 | "Could not reuse old backing file '%s': ", |
3608 | base_bs->filename); | |
35ddd930 HR |
3609 | goto out; |
3610 | } | |
3611 | } else { | |
3612 | blk_old_backing = NULL; | |
3e85c6fd | 3613 | } |
644483d9 | 3614 | |
a616673d | 3615 | if (out_baseimg[0]) { |
d16699b6 HR |
3616 | const char *overlay_filename; |
3617 | char *out_real_path; | |
3618 | ||
335e9937 | 3619 | options = qdict_new(); |
644483d9 | 3620 | if (out_basefmt) { |
46f5ac20 | 3621 | qdict_put_str(options, "driver", out_basefmt); |
335e9937 FZ |
3622 | } |
3623 | if (force_share) { | |
3624 | qdict_put_bool(options, BDRV_OPT_FORCE_SHARE, true); | |
644483d9 HR |
3625 | } |
3626 | ||
f30c66ba | 3627 | bdrv_refresh_filename(bs); |
d16699b6 HR |
3628 | overlay_filename = bs->exact_filename[0] ? bs->exact_filename |
3629 | : bs->filename; | |
645ae7d8 HR |
3630 | out_real_path = |
3631 | bdrv_get_full_backing_filename_from_filename(overlay_filename, | |
3632 | out_baseimg, | |
3633 | &local_err); | |
d16699b6 | 3634 | if (local_err) { |
f22356d9 | 3635 | qobject_unref(options); |
d16699b6 HR |
3636 | error_reportf_err(local_err, |
3637 | "Could not resolve backing filename: "); | |
3638 | ret = -1; | |
d16699b6 HR |
3639 | goto out; |
3640 | } | |
3641 | ||
863cc78f SE |
3642 | /* |
3643 | * Find out whether we rebase an image on top of a previous image | |
3644 | * in its chain. | |
3645 | */ | |
3646 | prefix_chain_bs = bdrv_find_backing_image(bs, out_real_path); | |
330c7295 | 3647 | if (prefix_chain_bs) { |
f22356d9 | 3648 | qobject_unref(options); |
330c7295 | 3649 | g_free(out_real_path); |
f22356d9 | 3650 | |
d861ab3a KW |
3651 | blk_new_backing = blk_new(qemu_get_aio_context(), |
3652 | BLK_PERM_CONSISTENT_READ, | |
330c7295 SE |
3653 | BLK_PERM_ALL); |
3654 | ret = blk_insert_bs(blk_new_backing, prefix_chain_bs, | |
3655 | &local_err); | |
3656 | if (ret < 0) { | |
3657 | error_reportf_err(local_err, | |
3658 | "Could not reuse backing file '%s': ", | |
3659 | out_baseimg); | |
3660 | goto out; | |
3661 | } | |
3662 | } else { | |
3663 | blk_new_backing = blk_new_open(out_real_path, NULL, | |
3664 | options, src_flags, &local_err); | |
3665 | g_free(out_real_path); | |
3666 | if (!blk_new_backing) { | |
3667 | error_reportf_err(local_err, | |
3668 | "Could not open new backing file '%s': ", | |
3669 | out_baseimg); | |
3670 | ret = -1; | |
3671 | goto out; | |
3672 | } | |
a616673d | 3673 | } |
3e85c6fd KW |
3674 | } |
3675 | } | |
3676 | ||
3677 | /* | |
3678 | * Check each unallocated cluster in the COW file. If it is unallocated, | |
3679 | * accesses go to the backing file. We must therefore compare this cluster | |
3680 | * in the old and new backing file, and if they differ we need to copy it | |
3681 | * from the old backing file into the COW file. | |
3682 | * | |
3683 | * If qemu-img crashes during this step, no harm is done. The content of | |
3684 | * the image is the same as the original one at any time. | |
3685 | */ | |
3686 | if (!unsafe) { | |
41536287 | 3687 | int64_t size; |
35ddd930 | 3688 | int64_t old_backing_size = 0; |
41536287 EB |
3689 | int64_t new_backing_size = 0; |
3690 | uint64_t offset; | |
3691 | int64_t n; | |
1f710495 | 3692 | float local_progress = 0; |
d6771bfa | 3693 | |
f1d3cd79 HR |
3694 | buf_old = blk_blockalign(blk, IO_BUF_SIZE); |
3695 | buf_new = blk_blockalign(blk, IO_BUF_SIZE); | |
3e85c6fd | 3696 | |
41536287 EB |
3697 | size = blk_getlength(blk); |
3698 | if (size < 0) { | |
52bf1e72 | 3699 | error_report("Could not get size of '%s': %s", |
41536287 | 3700 | filename, strerror(-size)); |
52bf1e72 MA |
3701 | ret = -1; |
3702 | goto out; | |
3703 | } | |
35ddd930 HR |
3704 | if (blk_old_backing) { |
3705 | old_backing_size = blk_getlength(blk_old_backing); | |
3706 | if (old_backing_size < 0) { | |
3707 | char backing_name[PATH_MAX]; | |
52bf1e72 | 3708 | |
35ddd930 HR |
3709 | bdrv_get_backing_filename(bs, backing_name, |
3710 | sizeof(backing_name)); | |
3711 | error_report("Could not get size of '%s': %s", | |
3712 | backing_name, strerror(-old_backing_size)); | |
3713 | ret = -1; | |
3714 | goto out; | |
3715 | } | |
52bf1e72 | 3716 | } |
f1d3cd79 | 3717 | if (blk_new_backing) { |
41536287 EB |
3718 | new_backing_size = blk_getlength(blk_new_backing); |
3719 | if (new_backing_size < 0) { | |
52bf1e72 | 3720 | error_report("Could not get size of '%s': %s", |
41536287 | 3721 | out_baseimg, strerror(-new_backing_size)); |
52bf1e72 MA |
3722 | ret = -1; |
3723 | goto out; | |
3724 | } | |
a616673d | 3725 | } |
3e85c6fd | 3726 | |
41536287 EB |
3727 | if (size != 0) { |
3728 | local_progress = (float)100 / (size / MIN(size, IO_BUF_SIZE)); | |
1f710495 KW |
3729 | } |
3730 | ||
41536287 | 3731 | for (offset = 0; offset < size; offset += n) { |
1c6e8779 HR |
3732 | bool buf_old_is_zero = false; |
3733 | ||
41536287 EB |
3734 | /* How many bytes can we handle with the next read? */ |
3735 | n = MIN(IO_BUF_SIZE, size - offset); | |
3e85c6fd KW |
3736 | |
3737 | /* If the cluster is allocated, we don't need to take action */ | |
4a2061e6 | 3738 | ret = bdrv_is_allocated(unfiltered_bs, offset, n, &n); |
d663640c PB |
3739 | if (ret < 0) { |
3740 | error_report("error while reading image metadata: %s", | |
3741 | strerror(-ret)); | |
3742 | goto out; | |
3743 | } | |
cc60e327 | 3744 | if (ret) { |
3e85c6fd KW |
3745 | continue; |
3746 | } | |
3747 | ||
863cc78f SE |
3748 | if (prefix_chain_bs) { |
3749 | /* | |
3750 | * If cluster wasn't changed since prefix_chain, we don't need | |
3751 | * to take action | |
3752 | */ | |
4a2061e6 HR |
3753 | ret = bdrv_is_allocated_above(bdrv_cow_bs(unfiltered_bs), |
3754 | prefix_chain_bs, false, | |
3755 | offset, n, &n); | |
863cc78f SE |
3756 | if (ret < 0) { |
3757 | error_report("error while reading image metadata: %s", | |
3758 | strerror(-ret)); | |
3759 | goto out; | |
3760 | } | |
3761 | if (!ret) { | |
3762 | continue; | |
3763 | } | |
3764 | } | |
3765 | ||
87a1b3e3 KW |
3766 | /* |
3767 | * Read old and new backing file and take into consideration that | |
3768 | * backing files may be smaller than the COW image. | |
3769 | */ | |
41536287 EB |
3770 | if (offset >= old_backing_size) { |
3771 | memset(buf_old, 0, n); | |
1c6e8779 | 3772 | buf_old_is_zero = true; |
87a1b3e3 | 3773 | } else { |
41536287 EB |
3774 | if (offset + n > old_backing_size) { |
3775 | n = old_backing_size - offset; | |
87a1b3e3 KW |
3776 | } |
3777 | ||
41536287 | 3778 | ret = blk_pread(blk_old_backing, offset, buf_old, n); |
87a1b3e3 KW |
3779 | if (ret < 0) { |
3780 | error_report("error while reading from old backing file"); | |
3781 | goto out; | |
3782 | } | |
3e85c6fd | 3783 | } |
87a1b3e3 | 3784 | |
41536287 EB |
3785 | if (offset >= new_backing_size || !blk_new_backing) { |
3786 | memset(buf_new, 0, n); | |
87a1b3e3 | 3787 | } else { |
41536287 EB |
3788 | if (offset + n > new_backing_size) { |
3789 | n = new_backing_size - offset; | |
87a1b3e3 KW |
3790 | } |
3791 | ||
41536287 | 3792 | ret = blk_pread(blk_new_backing, offset, buf_new, n); |
87a1b3e3 KW |
3793 | if (ret < 0) { |
3794 | error_report("error while reading from new backing file"); | |
3795 | goto out; | |
3796 | } | |
3e85c6fd KW |
3797 | } |
3798 | ||
3799 | /* If they differ, we need to write to the COW file */ | |
3800 | uint64_t written = 0; | |
3801 | ||
41536287 | 3802 | while (written < n) { |
dc61cd3b | 3803 | int64_t pnum; |
3e85c6fd | 3804 | |
41536287 EB |
3805 | if (compare_buffers(buf_old + written, buf_new + written, |
3806 | n - written, &pnum)) | |
3e85c6fd | 3807 | { |
1c6e8779 HR |
3808 | if (buf_old_is_zero) { |
3809 | ret = blk_pwrite_zeroes(blk, offset + written, pnum, 0); | |
3810 | } else { | |
3811 | ret = blk_pwrite(blk, offset + written, | |
3812 | buf_old + written, pnum, 0); | |
3813 | } | |
3e85c6fd | 3814 | if (ret < 0) { |
15654a6d | 3815 | error_report("Error while writing to COW image: %s", |
3e85c6fd | 3816 | strerror(-ret)); |
c2abccec | 3817 | goto out; |
3e85c6fd KW |
3818 | } |
3819 | } | |
3820 | ||
3821 | written += pnum; | |
3822 | } | |
6b837bc4 | 3823 | qemu_progress_print(local_progress, 100); |
3e85c6fd KW |
3824 | } |
3825 | } | |
3826 | ||
3827 | /* | |
3828 | * Change the backing file. All clusters that are different from the old | |
3829 | * backing file are overwritten in the COW file now, so the visible content | |
3830 | * doesn't change when we switch the backing file. | |
3831 | */ | |
a616673d | 3832 | if (out_baseimg && *out_baseimg) { |
4a2061e6 HR |
3833 | ret = bdrv_change_backing_file(unfiltered_bs, out_baseimg, out_basefmt, |
3834 | true); | |
a616673d | 3835 | } else { |
4a2061e6 | 3836 | ret = bdrv_change_backing_file(unfiltered_bs, NULL, NULL, false); |
a616673d AB |
3837 | } |
3838 | ||
3e85c6fd | 3839 | if (ret == -ENOSPC) { |
15654a6d JS |
3840 | error_report("Could not change the backing file to '%s': No " |
3841 | "space left in the file header", out_baseimg); | |
a7cd44be EB |
3842 | } else if (ret == -EINVAL && out_baseimg && !out_basefmt) { |
3843 | error_report("Could not change the backing file to '%s': backing " | |
3844 | "format must be specified", out_baseimg); | |
3e85c6fd | 3845 | } else if (ret < 0) { |
15654a6d | 3846 | error_report("Could not change the backing file to '%s': %s", |
3e85c6fd KW |
3847 | out_baseimg, strerror(-ret)); |
3848 | } | |
3849 | ||
6b837bc4 | 3850 | qemu_progress_print(100, 0); |
3e85c6fd KW |
3851 | /* |
3852 | * TODO At this point it is possible to check if any clusters that are | |
3853 | * allocated in the COW file are the same in the backing file. If so, they | |
3854 | * could be dropped from the COW file. Don't do this before switching the | |
3855 | * backing file, in case of a crash this would lead to corruption. | |
3856 | */ | |
c2abccec | 3857 | out: |
6b837bc4 | 3858 | qemu_progress_end(); |
3e85c6fd KW |
3859 | /* Cleanup */ |
3860 | if (!unsafe) { | |
26f54e9a | 3861 | blk_unref(blk_old_backing); |
26f54e9a | 3862 | blk_unref(blk_new_backing); |
3e85c6fd | 3863 | } |
396374ca PB |
3864 | qemu_vfree(buf_old); |
3865 | qemu_vfree(buf_new); | |
3e85c6fd | 3866 | |
26f54e9a | 3867 | blk_unref(blk); |
c2abccec MK |
3868 | if (ret) { |
3869 | return 1; | |
3870 | } | |
3e85c6fd KW |
3871 | return 0; |
3872 | } | |
3873 | ||
ae6b0ed6 SH |
3874 | static int img_resize(int argc, char **argv) |
3875 | { | |
6750e795 | 3876 | Error *err = NULL; |
ae6b0ed6 SH |
3877 | int c, ret, relative; |
3878 | const char *filename, *fmt, *size; | |
09c5c6de | 3879 | int64_t n, total_size, current_size; |
f382d43a | 3880 | bool quiet = false; |
26f54e9a | 3881 | BlockBackend *blk = NULL; |
dc5f690b | 3882 | PreallocMode prealloc = PREALLOC_MODE_OFF; |
20caf0f7 | 3883 | QemuOpts *param; |
3babeb15 | 3884 | |
20caf0f7 DXW |
3885 | static QemuOptsList resize_options = { |
3886 | .name = "resize_options", | |
3887 | .head = QTAILQ_HEAD_INITIALIZER(resize_options.head), | |
3888 | .desc = { | |
3889 | { | |
3890 | .name = BLOCK_OPT_SIZE, | |
3891 | .type = QEMU_OPT_SIZE, | |
3892 | .help = "Virtual disk size" | |
3893 | }, { | |
3894 | /* end of list */ | |
3895 | } | |
ae6b0ed6 | 3896 | }, |
ae6b0ed6 | 3897 | }; |
eb769f74 | 3898 | bool image_opts = false; |
4ffca890 | 3899 | bool shrink = false; |
ae6b0ed6 | 3900 | |
e80fec7f KW |
3901 | /* Remove size from argv manually so that negative numbers are not treated |
3902 | * as options by getopt. */ | |
3903 | if (argc < 3) { | |
ac1307ab | 3904 | error_exit("Not enough arguments"); |
e80fec7f KW |
3905 | return 1; |
3906 | } | |
3907 | ||
3908 | size = argv[--argc]; | |
3909 | ||
3910 | /* Parse getopt arguments */ | |
ae6b0ed6 SH |
3911 | fmt = NULL; |
3912 | for(;;) { | |
3babeb15 DB |
3913 | static const struct option long_options[] = { |
3914 | {"help", no_argument, 0, 'h'}, | |
3915 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 3916 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
dc5f690b | 3917 | {"preallocation", required_argument, 0, OPTION_PREALLOCATION}, |
4ffca890 | 3918 | {"shrink", no_argument, 0, OPTION_SHRINK}, |
3babeb15 DB |
3919 | {0, 0, 0, 0} |
3920 | }; | |
c9192973 | 3921 | c = getopt_long(argc, argv, ":f:hq", |
3babeb15 | 3922 | long_options, NULL); |
ae6b0ed6 SH |
3923 | if (c == -1) { |
3924 | break; | |
3925 | } | |
3926 | switch(c) { | |
c9192973 SH |
3927 | case ':': |
3928 | missing_argument(argv[optind - 1]); | |
3929 | break; | |
ef87394c | 3930 | case '?': |
c9192973 SH |
3931 | unrecognized_option(argv[optind - 1]); |
3932 | break; | |
ae6b0ed6 SH |
3933 | case 'h': |
3934 | help(); | |
3935 | break; | |
3936 | case 'f': | |
3937 | fmt = optarg; | |
3938 | break; | |
f382d43a MR |
3939 | case 'q': |
3940 | quiet = true; | |
3941 | break; | |
99b1e646 KW |
3942 | case OPTION_OBJECT: |
3943 | user_creatable_process_cmdline(optarg); | |
3944 | break; | |
eb769f74 DB |
3945 | case OPTION_IMAGE_OPTS: |
3946 | image_opts = true; | |
3947 | break; | |
dc5f690b | 3948 | case OPTION_PREALLOCATION: |
f7abe0ec | 3949 | prealloc = qapi_enum_parse(&PreallocMode_lookup, optarg, |
06c60b6c | 3950 | PREALLOC_MODE__MAX, NULL); |
dc5f690b HR |
3951 | if (prealloc == PREALLOC_MODE__MAX) { |
3952 | error_report("Invalid preallocation mode '%s'", optarg); | |
3953 | return 1; | |
3954 | } | |
3955 | break; | |
4ffca890 PB |
3956 | case OPTION_SHRINK: |
3957 | shrink = true; | |
3958 | break; | |
ae6b0ed6 SH |
3959 | } |
3960 | } | |
fc11eb26 | 3961 | if (optind != argc - 1) { |
be8fbd47 | 3962 | error_exit("Expecting image file name and size"); |
ae6b0ed6 SH |
3963 | } |
3964 | filename = argv[optind++]; | |
ae6b0ed6 SH |
3965 | |
3966 | /* Choose grow, shrink, or absolute resize mode */ | |
3967 | switch (size[0]) { | |
3968 | case '+': | |
3969 | relative = 1; | |
3970 | size++; | |
3971 | break; | |
3972 | case '-': | |
3973 | relative = -1; | |
3974 | size++; | |
3975 | break; | |
3976 | default: | |
3977 | relative = 0; | |
3978 | break; | |
3979 | } | |
3980 | ||
3981 | /* Parse size */ | |
87ea75d5 | 3982 | param = qemu_opts_create(&resize_options, NULL, 0, &error_abort); |
235e59cf | 3983 | if (!qemu_opt_set(param, BLOCK_OPT_SIZE, size, &err)) { |
6750e795 | 3984 | error_report_err(err); |
2a81998a | 3985 | ret = -1; |
20caf0f7 | 3986 | qemu_opts_del(param); |
2a81998a | 3987 | goto out; |
ae6b0ed6 | 3988 | } |
20caf0f7 DXW |
3989 | n = qemu_opt_get_size(param, BLOCK_OPT_SIZE, 0); |
3990 | qemu_opts_del(param); | |
ae6b0ed6 | 3991 | |
efaa7c4e | 3992 | blk = img_open(image_opts, filename, fmt, |
335e9937 FZ |
3993 | BDRV_O_RDWR | BDRV_O_RESIZE, false, quiet, |
3994 | false); | |
7e7d56d9 | 3995 | if (!blk) { |
2a81998a JS |
3996 | ret = -1; |
3997 | goto out; | |
c2abccec | 3998 | } |
ae6b0ed6 | 3999 | |
dc5f690b HR |
4000 | current_size = blk_getlength(blk); |
4001 | if (current_size < 0) { | |
4002 | error_report("Failed to inquire current image length: %s", | |
4003 | strerror(-current_size)); | |
4004 | ret = -1; | |
4005 | goto out; | |
4006 | } | |
4007 | ||
ae6b0ed6 | 4008 | if (relative) { |
dc5f690b | 4009 | total_size = current_size + n * relative; |
ae6b0ed6 SH |
4010 | } else { |
4011 | total_size = n; | |
4012 | } | |
4013 | if (total_size <= 0) { | |
15654a6d | 4014 | error_report("New image size must be positive"); |
c2abccec MK |
4015 | ret = -1; |
4016 | goto out; | |
ae6b0ed6 SH |
4017 | } |
4018 | ||
dc5f690b HR |
4019 | if (total_size <= current_size && prealloc != PREALLOC_MODE_OFF) { |
4020 | error_report("Preallocation can only be used for growing images"); | |
4021 | ret = -1; | |
4022 | goto out; | |
4023 | } | |
4024 | ||
4ffca890 | 4025 | if (total_size < current_size && !shrink) { |
1c404d75 | 4026 | error_report("Use the --shrink option to perform a shrink operation."); |
4ffca890 PB |
4027 | warn_report("Shrinking an image will delete all data beyond the " |
4028 | "shrunken image's end. Before performing such an " | |
4029 | "operation, make sure there is no important data there."); | |
1c404d75 KW |
4030 | ret = -1; |
4031 | goto out; | |
4ffca890 PB |
4032 | } |
4033 | ||
e8d04f92 HR |
4034 | /* |
4035 | * The user expects the image to have the desired size after | |
4036 | * resizing, so pass @exact=true. It is of no use to report | |
4037 | * success when the image has not actually been resized. | |
4038 | */ | |
8c6242b6 | 4039 | ret = blk_truncate(blk, total_size, true, prealloc, 0, &err); |
09c5c6de HR |
4040 | if (!ret) { |
4041 | qprintf(quiet, "Image resized.\n"); | |
4042 | } else { | |
ed3d2ec9 | 4043 | error_report_err(err); |
ae6b0ed6 | 4044 | } |
c2abccec | 4045 | out: |
26f54e9a | 4046 | blk_unref(blk); |
c2abccec MK |
4047 | if (ret) { |
4048 | return 1; | |
4049 | } | |
ae6b0ed6 SH |
4050 | return 0; |
4051 | } | |
4052 | ||
76a3a34d | 4053 | static void amend_status_cb(BlockDriverState *bs, |
8b13976d HR |
4054 | int64_t offset, int64_t total_work_size, |
4055 | void *opaque) | |
76a3a34d HR |
4056 | { |
4057 | qemu_progress_print(100.f * offset / total_work_size, 0); | |
4058 | } | |
4059 | ||
51641351 HR |
4060 | static int print_amend_option_help(const char *format) |
4061 | { | |
4062 | BlockDriver *drv; | |
4063 | ||
4064 | /* Find driver and parse its options */ | |
4065 | drv = bdrv_find_format(format); | |
4066 | if (!drv) { | |
4067 | error_report("Unknown file format '%s'", format); | |
4068 | return 1; | |
4069 | } | |
4070 | ||
4071 | if (!drv->bdrv_amend_options) { | |
4072 | error_report("Format driver '%s' does not support option amendment", | |
4073 | format); | |
4074 | return 1; | |
4075 | } | |
4076 | ||
df373fb0 ML |
4077 | /* Every driver supporting amendment must have amend_opts */ |
4078 | assert(drv->amend_opts); | |
51641351 | 4079 | |
0b6786a9 | 4080 | printf("Amend options for '%s':\n", format); |
df373fb0 | 4081 | qemu_opts_print_help(drv->amend_opts, false); |
51641351 HR |
4082 | return 0; |
4083 | } | |
4084 | ||
6f176b48 HR |
4085 | static int img_amend(int argc, char **argv) |
4086 | { | |
dc523cd3 | 4087 | Error *err = NULL; |
6f176b48 HR |
4088 | int c, ret = 0; |
4089 | char *options = NULL; | |
df373fb0 | 4090 | QemuOptsList *amend_opts = NULL; |
83d0521a | 4091 | QemuOpts *opts = NULL; |
bd39e6ed HR |
4092 | const char *fmt = NULL, *filename, *cache; |
4093 | int flags; | |
ce099547 | 4094 | bool writethrough; |
76a3a34d | 4095 | bool quiet = false, progress = false; |
26f54e9a | 4096 | BlockBackend *blk = NULL; |
6f176b48 | 4097 | BlockDriverState *bs = NULL; |
eb769f74 | 4098 | bool image_opts = false; |
a3579bfa | 4099 | bool force = false; |
6f176b48 | 4100 | |
bd39e6ed | 4101 | cache = BDRV_DEFAULT_CACHE; |
6f176b48 | 4102 | for (;;) { |
3babeb15 DB |
4103 | static const struct option long_options[] = { |
4104 | {"help", no_argument, 0, 'h'}, | |
4105 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 4106 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
a3579bfa | 4107 | {"force", no_argument, 0, OPTION_FORCE}, |
3babeb15 DB |
4108 | {0, 0, 0, 0} |
4109 | }; | |
c9192973 | 4110 | c = getopt_long(argc, argv, ":ho:f:t:pq", |
3babeb15 | 4111 | long_options, NULL); |
6f176b48 HR |
4112 | if (c == -1) { |
4113 | break; | |
4114 | } | |
4115 | ||
4116 | switch (c) { | |
c9192973 SH |
4117 | case ':': |
4118 | missing_argument(argv[optind - 1]); | |
4119 | break; | |
f7077624 | 4120 | case '?': |
c9192973 SH |
4121 | unrecognized_option(argv[optind - 1]); |
4122 | break; | |
4123 | case 'h': | |
f7077624 SH |
4124 | help(); |
4125 | break; | |
4126 | case 'o': | |
6d2b5cba | 4127 | if (accumulate_options(&options, optarg) < 0) { |
f7077624 SH |
4128 | ret = -1; |
4129 | goto out_no_progress; | |
4130 | } | |
f7077624 SH |
4131 | break; |
4132 | case 'f': | |
4133 | fmt = optarg; | |
4134 | break; | |
4135 | case 't': | |
4136 | cache = optarg; | |
4137 | break; | |
4138 | case 'p': | |
4139 | progress = true; | |
4140 | break; | |
4141 | case 'q': | |
4142 | quiet = true; | |
4143 | break; | |
4144 | case OPTION_OBJECT: | |
99b1e646 | 4145 | user_creatable_process_cmdline(optarg); |
f7077624 SH |
4146 | break; |
4147 | case OPTION_IMAGE_OPTS: | |
4148 | image_opts = true; | |
4149 | break; | |
a3579bfa ML |
4150 | case OPTION_FORCE: |
4151 | force = true; | |
4152 | break; | |
6f176b48 HR |
4153 | } |
4154 | } | |
4155 | ||
a283cb6e | 4156 | if (!options) { |
ac1307ab | 4157 | error_exit("Must specify options (-o)"); |
6f176b48 HR |
4158 | } |
4159 | ||
76a3a34d HR |
4160 | if (quiet) { |
4161 | progress = false; | |
4162 | } | |
4163 | qemu_progress_init(progress, 1.0); | |
4164 | ||
a283cb6e KW |
4165 | filename = (optind == argc - 1) ? argv[argc - 1] : NULL; |
4166 | if (fmt && has_help_option(options)) { | |
4167 | /* If a format is explicitly specified (and possibly no filename is | |
4168 | * given), print option help here */ | |
51641351 | 4169 | ret = print_amend_option_help(fmt); |
a283cb6e | 4170 | goto out; |
6f176b48 HR |
4171 | } |
4172 | ||
a283cb6e | 4173 | if (optind != argc - 1) { |
b2f27e44 HR |
4174 | error_report("Expecting one image file name"); |
4175 | ret = -1; | |
4176 | goto out; | |
a283cb6e | 4177 | } |
6f176b48 | 4178 | |
ce099547 KW |
4179 | flags = BDRV_O_RDWR; |
4180 | ret = bdrv_parse_cache_mode(cache, &flags, &writethrough); | |
bd39e6ed HR |
4181 | if (ret < 0) { |
4182 | error_report("Invalid cache option: %s", cache); | |
4183 | goto out; | |
4184 | } | |
4185 | ||
335e9937 FZ |
4186 | blk = img_open(image_opts, filename, fmt, flags, writethrough, quiet, |
4187 | false); | |
7e7d56d9 | 4188 | if (!blk) { |
6f176b48 HR |
4189 | ret = -1; |
4190 | goto out; | |
4191 | } | |
7e7d56d9 | 4192 | bs = blk_bs(blk); |
6f176b48 HR |
4193 | |
4194 | fmt = bs->drv->format_name; | |
4195 | ||
626f84f3 | 4196 | if (has_help_option(options)) { |
a283cb6e | 4197 | /* If the format was auto-detected, print option help here */ |
51641351 | 4198 | ret = print_amend_option_help(fmt); |
6f176b48 HR |
4199 | goto out; |
4200 | } | |
4201 | ||
1f996683 HR |
4202 | if (!bs->drv->bdrv_amend_options) { |
4203 | error_report("Format driver '%s' does not support option amendment", | |
b2439d26 HR |
4204 | fmt); |
4205 | ret = -1; | |
4206 | goto out; | |
4207 | } | |
4208 | ||
df373fb0 ML |
4209 | /* Every driver supporting amendment must have amend_opts */ |
4210 | assert(bs->drv->amend_opts); | |
1f996683 | 4211 | |
df373fb0 ML |
4212 | amend_opts = qemu_opts_append(amend_opts, bs->drv->amend_opts); |
4213 | opts = qemu_opts_create(amend_opts, NULL, 0, &error_abort); | |
235e59cf | 4214 | if (!qemu_opts_do_parse(opts, options, NULL, &err)) { |
0b6786a9 | 4215 | /* Try to parse options using the create options */ |
0b6786a9 ML |
4216 | amend_opts = qemu_opts_append(amend_opts, bs->drv->create_opts); |
4217 | qemu_opts_del(opts); | |
4218 | opts = qemu_opts_create(amend_opts, NULL, 0, &error_abort); | |
9e194e06 | 4219 | if (qemu_opts_do_parse(opts, options, NULL, NULL)) { |
0b6786a9 ML |
4220 | error_append_hint(&err, |
4221 | "This option is only supported for image creation\n"); | |
0b6786a9 ML |
4222 | } |
4223 | ||
ece9086e PB |
4224 | error_report_err(err); |
4225 | ret = -1; | |
4226 | goto out; | |
6f176b48 HR |
4227 | } |
4228 | ||
76a3a34d HR |
4229 | /* In case the driver does not call amend_status_cb() */ |
4230 | qemu_progress_print(0.f, 0); | |
a3579bfa | 4231 | ret = bdrv_amend_options(bs, opts, &amend_status_cb, NULL, force, &err); |
76a3a34d | 4232 | qemu_progress_print(100.f, 0); |
6f176b48 | 4233 | if (ret < 0) { |
d1402b50 | 4234 | error_report_err(err); |
6f176b48 HR |
4235 | goto out; |
4236 | } | |
4237 | ||
4238 | out: | |
76a3a34d HR |
4239 | qemu_progress_end(); |
4240 | ||
e814dffc | 4241 | out_no_progress: |
26f54e9a | 4242 | blk_unref(blk); |
83d0521a | 4243 | qemu_opts_del(opts); |
df373fb0 | 4244 | qemu_opts_free(amend_opts); |
626f84f3 KW |
4245 | g_free(options); |
4246 | ||
6f176b48 HR |
4247 | if (ret) { |
4248 | return 1; | |
4249 | } | |
4250 | return 0; | |
4251 | } | |
4252 | ||
b6133b8c KW |
4253 | typedef struct BenchData { |
4254 | BlockBackend *blk; | |
4255 | uint64_t image_size; | |
b6495fa8 | 4256 | bool write; |
b6133b8c | 4257 | int bufsize; |
83de9be0 | 4258 | int step; |
b6133b8c KW |
4259 | int nrreq; |
4260 | int n; | |
55d539c8 KW |
4261 | int flush_interval; |
4262 | bool drain_on_flush; | |
b6133b8c KW |
4263 | uint8_t *buf; |
4264 | QEMUIOVector *qiov; | |
4265 | ||
4266 | int in_flight; | |
55d539c8 | 4267 | bool in_flush; |
b6133b8c KW |
4268 | uint64_t offset; |
4269 | } BenchData; | |
4270 | ||
55d539c8 KW |
4271 | static void bench_undrained_flush_cb(void *opaque, int ret) |
4272 | { | |
4273 | if (ret < 0) { | |
df3c286c | 4274 | error_report("Failed flush request: %s", strerror(-ret)); |
55d539c8 KW |
4275 | exit(EXIT_FAILURE); |
4276 | } | |
4277 | } | |
4278 | ||
b6133b8c KW |
4279 | static void bench_cb(void *opaque, int ret) |
4280 | { | |
4281 | BenchData *b = opaque; | |
4282 | BlockAIOCB *acb; | |
4283 | ||
4284 | if (ret < 0) { | |
df3c286c | 4285 | error_report("Failed request: %s", strerror(-ret)); |
b6133b8c KW |
4286 | exit(EXIT_FAILURE); |
4287 | } | |
55d539c8 KW |
4288 | |
4289 | if (b->in_flush) { | |
4290 | /* Just finished a flush with drained queue: Start next requests */ | |
4291 | assert(b->in_flight == 0); | |
4292 | b->in_flush = false; | |
4293 | } else if (b->in_flight > 0) { | |
4294 | int remaining = b->n - b->in_flight; | |
4295 | ||
b6133b8c KW |
4296 | b->n--; |
4297 | b->in_flight--; | |
55d539c8 KW |
4298 | |
4299 | /* Time for flush? Drain queue if requested, then flush */ | |
4300 | if (b->flush_interval && remaining % b->flush_interval == 0) { | |
4301 | if (!b->in_flight || !b->drain_on_flush) { | |
4302 | BlockCompletionFunc *cb; | |
4303 | ||
4304 | if (b->drain_on_flush) { | |
4305 | b->in_flush = true; | |
4306 | cb = bench_cb; | |
4307 | } else { | |
4308 | cb = bench_undrained_flush_cb; | |
4309 | } | |
4310 | ||
4311 | acb = blk_aio_flush(b->blk, cb, b); | |
4312 | if (!acb) { | |
4313 | error_report("Failed to issue flush request"); | |
4314 | exit(EXIT_FAILURE); | |
4315 | } | |
4316 | } | |
4317 | if (b->drain_on_flush) { | |
4318 | return; | |
4319 | } | |
4320 | } | |
b6133b8c KW |
4321 | } |
4322 | ||
4323 | while (b->n > b->in_flight && b->in_flight < b->nrreq) { | |
4baaa8c3 PB |
4324 | int64_t offset = b->offset; |
4325 | /* blk_aio_* might look for completed I/Os and kick bench_cb | |
4326 | * again, so make sure this operation is counted by in_flight | |
4327 | * and b->offset is ready for the next submission. | |
4328 | */ | |
4329 | b->in_flight++; | |
4330 | b->offset += b->step; | |
4331 | b->offset %= b->image_size; | |
b6495fa8 | 4332 | if (b->write) { |
4baaa8c3 | 4333 | acb = blk_aio_pwritev(b->blk, offset, b->qiov, 0, bench_cb, b); |
b6495fa8 | 4334 | } else { |
4baaa8c3 | 4335 | acb = blk_aio_preadv(b->blk, offset, b->qiov, 0, bench_cb, b); |
b6495fa8 | 4336 | } |
b6133b8c KW |
4337 | if (!acb) { |
4338 | error_report("Failed to issue request"); | |
4339 | exit(EXIT_FAILURE); | |
4340 | } | |
b6133b8c KW |
4341 | } |
4342 | } | |
4343 | ||
4344 | static int img_bench(int argc, char **argv) | |
4345 | { | |
4346 | int c, ret = 0; | |
4347 | const char *fmt = NULL, *filename; | |
4348 | bool quiet = false; | |
4349 | bool image_opts = false; | |
b6495fa8 | 4350 | bool is_write = false; |
b6133b8c KW |
4351 | int count = 75000; |
4352 | int depth = 64; | |
d3199a31 | 4353 | int64_t offset = 0; |
b6133b8c | 4354 | size_t bufsize = 4096; |
b6495fa8 | 4355 | int pattern = 0; |
83de9be0 | 4356 | size_t step = 0; |
55d539c8 KW |
4357 | int flush_interval = 0; |
4358 | bool drain_on_flush = true; | |
b6133b8c KW |
4359 | int64_t image_size; |
4360 | BlockBackend *blk = NULL; | |
4361 | BenchData data = {}; | |
4362 | int flags = 0; | |
604e8613 | 4363 | bool writethrough = false; |
b6133b8c KW |
4364 | struct timeval t1, t2; |
4365 | int i; | |
335e9937 | 4366 | bool force_share = false; |
79d46583 | 4367 | size_t buf_size; |
b6133b8c KW |
4368 | |
4369 | for (;;) { | |
4370 | static const struct option long_options[] = { | |
4371 | {"help", no_argument, 0, 'h'}, | |
55d539c8 | 4372 | {"flush-interval", required_argument, 0, OPTION_FLUSH_INTERVAL}, |
b6133b8c | 4373 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
b6495fa8 | 4374 | {"pattern", required_argument, 0, OPTION_PATTERN}, |
55d539c8 | 4375 | {"no-drain", no_argument, 0, OPTION_NO_DRAIN}, |
335e9937 | 4376 | {"force-share", no_argument, 0, 'U'}, |
b6133b8c KW |
4377 | {0, 0, 0, 0} |
4378 | }; | |
cdd26774 AM |
4379 | c = getopt_long(argc, argv, ":hc:d:f:ni:o:qs:S:t:wU", long_options, |
4380 | NULL); | |
b6133b8c KW |
4381 | if (c == -1) { |
4382 | break; | |
4383 | } | |
4384 | ||
4385 | switch (c) { | |
c9192973 SH |
4386 | case ':': |
4387 | missing_argument(argv[optind - 1]); | |
4388 | break; | |
b6133b8c | 4389 | case '?': |
c9192973 SH |
4390 | unrecognized_option(argv[optind - 1]); |
4391 | break; | |
4392 | case 'h': | |
b6133b8c KW |
4393 | help(); |
4394 | break; | |
4395 | case 'c': | |
4396 | { | |
8b3c6792 PM |
4397 | unsigned long res; |
4398 | ||
4399 | if (qemu_strtoul(optarg, NULL, 0, &res) < 0 || res > INT_MAX) { | |
b6133b8c KW |
4400 | error_report("Invalid request count specified"); |
4401 | return 1; | |
4402 | } | |
8b3c6792 | 4403 | count = res; |
b6133b8c KW |
4404 | break; |
4405 | } | |
4406 | case 'd': | |
4407 | { | |
8b3c6792 PM |
4408 | unsigned long res; |
4409 | ||
4410 | if (qemu_strtoul(optarg, NULL, 0, &res) < 0 || res > INT_MAX) { | |
b6133b8c KW |
4411 | error_report("Invalid queue depth specified"); |
4412 | return 1; | |
4413 | } | |
8b3c6792 | 4414 | depth = res; |
b6133b8c KW |
4415 | break; |
4416 | } | |
4417 | case 'f': | |
4418 | fmt = optarg; | |
4419 | break; | |
4420 | case 'n': | |
4421 | flags |= BDRV_O_NATIVE_AIO; | |
4422 | break; | |
cdd26774 AM |
4423 | case 'i': |
4424 | ret = bdrv_parse_aio(optarg, &flags); | |
4425 | if (ret < 0) { | |
4426 | error_report("Invalid aio option: %s", optarg); | |
4427 | ret = -1; | |
4428 | goto out; | |
4429 | } | |
4430 | break; | |
d3199a31 KW |
4431 | case 'o': |
4432 | { | |
43d589b0 | 4433 | offset = cvtnum("offset", optarg); |
606caa0a | 4434 | if (offset < 0) { |
d3199a31 KW |
4435 | return 1; |
4436 | } | |
4437 | break; | |
4438 | } | |
4439 | break; | |
b6133b8c KW |
4440 | case 'q': |
4441 | quiet = true; | |
4442 | break; | |
4443 | case 's': | |
4444 | { | |
4445 | int64_t sval; | |
b6133b8c | 4446 | |
43d589b0 EM |
4447 | sval = cvtnum_full("buffer size", optarg, 0, INT_MAX); |
4448 | if (sval < 0) { | |
b6133b8c KW |
4449 | return 1; |
4450 | } | |
4451 | ||
4452 | bufsize = sval; | |
4453 | break; | |
4454 | } | |
83de9be0 KW |
4455 | case 'S': |
4456 | { | |
4457 | int64_t sval; | |
83de9be0 | 4458 | |
43d589b0 EM |
4459 | sval = cvtnum_full("step_size", optarg, 0, INT_MAX); |
4460 | if (sval < 0) { | |
83de9be0 KW |
4461 | return 1; |
4462 | } | |
4463 | ||
4464 | step = sval; | |
4465 | break; | |
4466 | } | |
b6133b8c KW |
4467 | case 't': |
4468 | ret = bdrv_parse_cache_mode(optarg, &flags, &writethrough); | |
4469 | if (ret < 0) { | |
4470 | error_report("Invalid cache mode"); | |
4471 | ret = -1; | |
4472 | goto out; | |
4473 | } | |
4474 | break; | |
b6495fa8 KW |
4475 | case 'w': |
4476 | flags |= BDRV_O_RDWR; | |
4477 | is_write = true; | |
4478 | break; | |
335e9937 FZ |
4479 | case 'U': |
4480 | force_share = true; | |
4481 | break; | |
b6495fa8 KW |
4482 | case OPTION_PATTERN: |
4483 | { | |
8b3c6792 PM |
4484 | unsigned long res; |
4485 | ||
4486 | if (qemu_strtoul(optarg, NULL, 0, &res) < 0 || res > 0xff) { | |
b6495fa8 KW |
4487 | error_report("Invalid pattern byte specified"); |
4488 | return 1; | |
4489 | } | |
8b3c6792 | 4490 | pattern = res; |
b6495fa8 KW |
4491 | break; |
4492 | } | |
55d539c8 KW |
4493 | case OPTION_FLUSH_INTERVAL: |
4494 | { | |
8b3c6792 PM |
4495 | unsigned long res; |
4496 | ||
4497 | if (qemu_strtoul(optarg, NULL, 0, &res) < 0 || res > INT_MAX) { | |
55d539c8 KW |
4498 | error_report("Invalid flush interval specified"); |
4499 | return 1; | |
4500 | } | |
8b3c6792 | 4501 | flush_interval = res; |
55d539c8 KW |
4502 | break; |
4503 | } | |
4504 | case OPTION_NO_DRAIN: | |
4505 | drain_on_flush = false; | |
4506 | break; | |
b6133b8c KW |
4507 | case OPTION_IMAGE_OPTS: |
4508 | image_opts = true; | |
4509 | break; | |
4510 | } | |
4511 | } | |
4512 | ||
4513 | if (optind != argc - 1) { | |
4514 | error_exit("Expecting one image file name"); | |
4515 | } | |
4516 | filename = argv[argc - 1]; | |
4517 | ||
55d539c8 KW |
4518 | if (!is_write && flush_interval) { |
4519 | error_report("--flush-interval is only available in write tests"); | |
4520 | ret = -1; | |
4521 | goto out; | |
4522 | } | |
4523 | if (flush_interval && flush_interval < depth) { | |
4524 | error_report("Flush interval can't be smaller than depth"); | |
4525 | ret = -1; | |
4526 | goto out; | |
4527 | } | |
4528 | ||
335e9937 FZ |
4529 | blk = img_open(image_opts, filename, fmt, flags, writethrough, quiet, |
4530 | force_share); | |
b6133b8c KW |
4531 | if (!blk) { |
4532 | ret = -1; | |
4533 | goto out; | |
4534 | } | |
4535 | ||
4536 | image_size = blk_getlength(blk); | |
4537 | if (image_size < 0) { | |
4538 | ret = image_size; | |
4539 | goto out; | |
4540 | } | |
4541 | ||
4542 | data = (BenchData) { | |
55d539c8 KW |
4543 | .blk = blk, |
4544 | .image_size = image_size, | |
4545 | .bufsize = bufsize, | |
4546 | .step = step ?: bufsize, | |
4547 | .nrreq = depth, | |
4548 | .n = count, | |
4549 | .offset = offset, | |
4550 | .write = is_write, | |
4551 | .flush_interval = flush_interval, | |
4552 | .drain_on_flush = drain_on_flush, | |
b6133b8c | 4553 | }; |
d3199a31 | 4554 | printf("Sending %d %s requests, %d bytes each, %d in parallel " |
83de9be0 | 4555 | "(starting at offset %" PRId64 ", step size %d)\n", |
d3199a31 | 4556 | data.n, data.write ? "write" : "read", data.bufsize, data.nrreq, |
83de9be0 | 4557 | data.offset, data.step); |
55d539c8 KW |
4558 | if (flush_interval) { |
4559 | printf("Sending flush every %d requests\n", flush_interval); | |
4560 | } | |
b6133b8c | 4561 | |
79d46583 FZ |
4562 | buf_size = data.nrreq * data.bufsize; |
4563 | data.buf = blk_blockalign(blk, buf_size); | |
b6495fa8 KW |
4564 | memset(data.buf, pattern, data.nrreq * data.bufsize); |
4565 | ||
79d46583 FZ |
4566 | blk_register_buf(blk, data.buf, buf_size); |
4567 | ||
b6133b8c KW |
4568 | data.qiov = g_new(QEMUIOVector, data.nrreq); |
4569 | for (i = 0; i < data.nrreq; i++) { | |
4570 | qemu_iovec_init(&data.qiov[i], 1); | |
4571 | qemu_iovec_add(&data.qiov[i], | |
4572 | data.buf + i * data.bufsize, data.bufsize); | |
4573 | } | |
4574 | ||
4575 | gettimeofday(&t1, NULL); | |
4576 | bench_cb(&data, 0); | |
4577 | ||
4578 | while (data.n > 0) { | |
4579 | main_loop_wait(false); | |
4580 | } | |
4581 | gettimeofday(&t2, NULL); | |
4582 | ||
4583 | printf("Run completed in %3.3f seconds.\n", | |
4584 | (t2.tv_sec - t1.tv_sec) | |
4585 | + ((double)(t2.tv_usec - t1.tv_usec) / 1000000)); | |
4586 | ||
4587 | out: | |
79d46583 FZ |
4588 | if (data.buf) { |
4589 | blk_unregister_buf(blk, data.buf); | |
4590 | } | |
b6133b8c KW |
4591 | qemu_vfree(data.buf); |
4592 | blk_unref(blk); | |
4593 | ||
4594 | if (ret) { | |
86ce1f6e RS |
4595 | return 1; |
4596 | } | |
4597 | return 0; | |
4598 | } | |
4599 | ||
3b51ab4b EB |
4600 | enum ImgBitmapAct { |
4601 | BITMAP_ADD, | |
4602 | BITMAP_REMOVE, | |
4603 | BITMAP_CLEAR, | |
4604 | BITMAP_ENABLE, | |
4605 | BITMAP_DISABLE, | |
4606 | BITMAP_MERGE, | |
4607 | }; | |
4608 | typedef struct ImgBitmapAction { | |
4609 | enum ImgBitmapAct act; | |
4610 | const char *src; /* only used for merge */ | |
4611 | QSIMPLEQ_ENTRY(ImgBitmapAction) next; | |
4612 | } ImgBitmapAction; | |
4613 | ||
4614 | static int img_bitmap(int argc, char **argv) | |
4615 | { | |
4616 | Error *err = NULL; | |
4617 | int c, ret = 1; | |
4618 | QemuOpts *opts = NULL; | |
4619 | const char *fmt = NULL, *src_fmt = NULL, *src_filename = NULL; | |
4620 | const char *filename, *bitmap; | |
4621 | BlockBackend *blk = NULL, *src = NULL; | |
4622 | BlockDriverState *bs = NULL, *src_bs = NULL; | |
4623 | bool image_opts = false; | |
4624 | int64_t granularity = 0; | |
4625 | bool add = false, merge = false; | |
4626 | QSIMPLEQ_HEAD(, ImgBitmapAction) actions; | |
4627 | ImgBitmapAction *act, *act_next; | |
4628 | const char *op; | |
4629 | ||
4630 | QSIMPLEQ_INIT(&actions); | |
4631 | ||
4632 | for (;;) { | |
4633 | static const struct option long_options[] = { | |
4634 | {"help", no_argument, 0, 'h'}, | |
4635 | {"object", required_argument, 0, OPTION_OBJECT}, | |
4636 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, | |
4637 | {"add", no_argument, 0, OPTION_ADD}, | |
4638 | {"remove", no_argument, 0, OPTION_REMOVE}, | |
4639 | {"clear", no_argument, 0, OPTION_CLEAR}, | |
4640 | {"enable", no_argument, 0, OPTION_ENABLE}, | |
4641 | {"disable", no_argument, 0, OPTION_DISABLE}, | |
4642 | {"merge", required_argument, 0, OPTION_MERGE}, | |
4643 | {"granularity", required_argument, 0, 'g'}, | |
4644 | {"source-file", required_argument, 0, 'b'}, | |
4645 | {"source-format", required_argument, 0, 'F'}, | |
4646 | {0, 0, 0, 0} | |
4647 | }; | |
4648 | c = getopt_long(argc, argv, ":b:f:F:g:h", long_options, NULL); | |
4649 | if (c == -1) { | |
4650 | break; | |
4651 | } | |
4652 | ||
4653 | switch (c) { | |
4654 | case ':': | |
4655 | missing_argument(argv[optind - 1]); | |
4656 | break; | |
4657 | case '?': | |
4658 | unrecognized_option(argv[optind - 1]); | |
4659 | break; | |
4660 | case 'h': | |
4661 | help(); | |
4662 | break; | |
4663 | case 'b': | |
4664 | src_filename = optarg; | |
4665 | break; | |
4666 | case 'f': | |
4667 | fmt = optarg; | |
4668 | break; | |
4669 | case 'F': | |
4670 | src_fmt = optarg; | |
4671 | break; | |
4672 | case 'g': | |
4673 | granularity = cvtnum("granularity", optarg); | |
4674 | if (granularity < 0) { | |
4675 | return 1; | |
4676 | } | |
4677 | break; | |
4678 | case OPTION_ADD: | |
4679 | act = g_new0(ImgBitmapAction, 1); | |
4680 | act->act = BITMAP_ADD; | |
4681 | QSIMPLEQ_INSERT_TAIL(&actions, act, next); | |
4682 | add = true; | |
4683 | break; | |
4684 | case OPTION_REMOVE: | |
4685 | act = g_new0(ImgBitmapAction, 1); | |
4686 | act->act = BITMAP_REMOVE; | |
4687 | QSIMPLEQ_INSERT_TAIL(&actions, act, next); | |
4688 | break; | |
4689 | case OPTION_CLEAR: | |
4690 | act = g_new0(ImgBitmapAction, 1); | |
4691 | act->act = BITMAP_CLEAR; | |
4692 | QSIMPLEQ_INSERT_TAIL(&actions, act, next); | |
4693 | break; | |
4694 | case OPTION_ENABLE: | |
4695 | act = g_new0(ImgBitmapAction, 1); | |
4696 | act->act = BITMAP_ENABLE; | |
4697 | QSIMPLEQ_INSERT_TAIL(&actions, act, next); | |
4698 | break; | |
4699 | case OPTION_DISABLE: | |
4700 | act = g_new0(ImgBitmapAction, 1); | |
4701 | act->act = BITMAP_DISABLE; | |
4702 | QSIMPLEQ_INSERT_TAIL(&actions, act, next); | |
4703 | break; | |
4704 | case OPTION_MERGE: | |
4705 | act = g_new0(ImgBitmapAction, 1); | |
4706 | act->act = BITMAP_MERGE; | |
4707 | act->src = optarg; | |
4708 | QSIMPLEQ_INSERT_TAIL(&actions, act, next); | |
4709 | merge = true; | |
4710 | break; | |
4711 | case OPTION_OBJECT: | |
99b1e646 | 4712 | user_creatable_process_cmdline(optarg); |
3b51ab4b EB |
4713 | break; |
4714 | case OPTION_IMAGE_OPTS: | |
4715 | image_opts = true; | |
4716 | break; | |
4717 | } | |
4718 | } | |
4719 | ||
3b51ab4b EB |
4720 | if (QSIMPLEQ_EMPTY(&actions)) { |
4721 | error_report("Need at least one of --add, --remove, --clear, " | |
4722 | "--enable, --disable, or --merge"); | |
4723 | goto out; | |
4724 | } | |
4725 | ||
4726 | if (granularity && !add) { | |
4727 | error_report("granularity only supported with --add"); | |
4728 | goto out; | |
4729 | } | |
4730 | if (src_fmt && !src_filename) { | |
4731 | error_report("-F only supported with -b"); | |
4732 | goto out; | |
4733 | } | |
4734 | if (src_filename && !merge) { | |
4735 | error_report("Merge bitmap source file only supported with " | |
4736 | "--merge"); | |
4737 | goto out; | |
4738 | } | |
4739 | ||
4740 | if (optind != argc - 2) { | |
4741 | error_report("Expecting filename and bitmap name"); | |
4742 | goto out; | |
4743 | } | |
4744 | ||
4745 | filename = argv[optind]; | |
4746 | bitmap = argv[optind + 1]; | |
4747 | ||
14f16bf9 EB |
4748 | /* |
4749 | * No need to open backing chains; we will be manipulating bitmaps | |
4750 | * directly in this image without reference to image contents. | |
4751 | */ | |
4752 | blk = img_open(image_opts, filename, fmt, BDRV_O_RDWR | BDRV_O_NO_BACKING, | |
4753 | false, false, false); | |
3b51ab4b EB |
4754 | if (!blk) { |
4755 | goto out; | |
4756 | } | |
4757 | bs = blk_bs(blk); | |
4758 | if (src_filename) { | |
14f16bf9 EB |
4759 | src = img_open(false, src_filename, src_fmt, BDRV_O_NO_BACKING, |
4760 | false, false, false); | |
3b51ab4b EB |
4761 | if (!src) { |
4762 | goto out; | |
4763 | } | |
4764 | src_bs = blk_bs(src); | |
4765 | } else { | |
4766 | src_bs = bs; | |
4767 | } | |
4768 | ||
4769 | QSIMPLEQ_FOREACH_SAFE(act, &actions, next, act_next) { | |
4770 | switch (act->act) { | |
4771 | case BITMAP_ADD: | |
4772 | qmp_block_dirty_bitmap_add(bs->node_name, bitmap, | |
4773 | !!granularity, granularity, true, true, | |
4774 | false, false, &err); | |
4775 | op = "add"; | |
4776 | break; | |
4777 | case BITMAP_REMOVE: | |
4778 | qmp_block_dirty_bitmap_remove(bs->node_name, bitmap, &err); | |
4779 | op = "remove"; | |
4780 | break; | |
4781 | case BITMAP_CLEAR: | |
4782 | qmp_block_dirty_bitmap_clear(bs->node_name, bitmap, &err); | |
4783 | op = "clear"; | |
4784 | break; | |
4785 | case BITMAP_ENABLE: | |
4786 | qmp_block_dirty_bitmap_enable(bs->node_name, bitmap, &err); | |
4787 | op = "enable"; | |
4788 | break; | |
4789 | case BITMAP_DISABLE: | |
4790 | qmp_block_dirty_bitmap_disable(bs->node_name, bitmap, &err); | |
4791 | op = "disable"; | |
4792 | break; | |
6c729dd8 EB |
4793 | case BITMAP_MERGE: |
4794 | do_dirty_bitmap_merge(bs->node_name, bitmap, src_bs->node_name, | |
4795 | act->src, &err); | |
3b51ab4b EB |
4796 | op = "merge"; |
4797 | break; | |
3b51ab4b EB |
4798 | default: |
4799 | g_assert_not_reached(); | |
4800 | } | |
4801 | ||
4802 | if (err) { | |
4803 | error_reportf_err(err, "Operation %s on bitmap %s failed: ", | |
4804 | op, bitmap); | |
4805 | goto out; | |
4806 | } | |
4807 | g_free(act); | |
4808 | } | |
4809 | ||
4810 | ret = 0; | |
4811 | ||
4812 | out: | |
4813 | blk_unref(src); | |
4814 | blk_unref(blk); | |
4815 | qemu_opts_del(opts); | |
4816 | return ret; | |
4817 | } | |
4818 | ||
86ce1f6e RS |
4819 | #define C_BS 01 |
4820 | #define C_COUNT 02 | |
4821 | #define C_IF 04 | |
4822 | #define C_OF 010 | |
f7c15533 | 4823 | #define C_SKIP 020 |
86ce1f6e RS |
4824 | |
4825 | struct DdInfo { | |
4826 | unsigned int flags; | |
4827 | int64_t count; | |
4828 | }; | |
4829 | ||
4830 | struct DdIo { | |
4831 | int bsz; /* Block size */ | |
4832 | char *filename; | |
4833 | uint8_t *buf; | |
f7c15533 | 4834 | int64_t offset; |
86ce1f6e RS |
4835 | }; |
4836 | ||
4837 | struct DdOpts { | |
4838 | const char *name; | |
4839 | int (*f)(const char *, struct DdIo *, struct DdIo *, struct DdInfo *); | |
4840 | unsigned int flag; | |
4841 | }; | |
4842 | ||
4843 | static int img_dd_bs(const char *arg, | |
4844 | struct DdIo *in, struct DdIo *out, | |
4845 | struct DdInfo *dd) | |
4846 | { | |
86ce1f6e RS |
4847 | int64_t res; |
4848 | ||
43d589b0 | 4849 | res = cvtnum_full("bs", arg, 1, INT_MAX); |
86ce1f6e | 4850 | |
43d589b0 | 4851 | if (res < 0) { |
86ce1f6e RS |
4852 | return 1; |
4853 | } | |
4854 | in->bsz = out->bsz = res; | |
4855 | ||
4856 | return 0; | |
4857 | } | |
4858 | ||
4859 | static int img_dd_count(const char *arg, | |
4860 | struct DdIo *in, struct DdIo *out, | |
4861 | struct DdInfo *dd) | |
4862 | { | |
43d589b0 | 4863 | dd->count = cvtnum("count", arg); |
86ce1f6e | 4864 | |
606caa0a | 4865 | if (dd->count < 0) { |
86ce1f6e RS |
4866 | return 1; |
4867 | } | |
4868 | ||
4869 | return 0; | |
4870 | } | |
4871 | ||
4872 | static int img_dd_if(const char *arg, | |
4873 | struct DdIo *in, struct DdIo *out, | |
4874 | struct DdInfo *dd) | |
4875 | { | |
4876 | in->filename = g_strdup(arg); | |
4877 | ||
4878 | return 0; | |
4879 | } | |
4880 | ||
4881 | static int img_dd_of(const char *arg, | |
4882 | struct DdIo *in, struct DdIo *out, | |
4883 | struct DdInfo *dd) | |
4884 | { | |
4885 | out->filename = g_strdup(arg); | |
4886 | ||
4887 | return 0; | |
4888 | } | |
4889 | ||
f7c15533 RS |
4890 | static int img_dd_skip(const char *arg, |
4891 | struct DdIo *in, struct DdIo *out, | |
4892 | struct DdInfo *dd) | |
4893 | { | |
43d589b0 | 4894 | in->offset = cvtnum("skip", arg); |
f7c15533 | 4895 | |
606caa0a | 4896 | if (in->offset < 0) { |
f7c15533 RS |
4897 | return 1; |
4898 | } | |
4899 | ||
4900 | return 0; | |
4901 | } | |
4902 | ||
86ce1f6e RS |
4903 | static int img_dd(int argc, char **argv) |
4904 | { | |
4905 | int ret = 0; | |
4906 | char *arg = NULL; | |
4907 | char *tmp; | |
4908 | BlockDriver *drv = NULL, *proto_drv = NULL; | |
4909 | BlockBackend *blk1 = NULL, *blk2 = NULL; | |
4910 | QemuOpts *opts = NULL; | |
4911 | QemuOptsList *create_opts = NULL; | |
4912 | Error *local_err = NULL; | |
4913 | bool image_opts = false; | |
4914 | int c, i; | |
4915 | const char *out_fmt = "raw"; | |
4916 | const char *fmt = NULL; | |
4917 | int64_t size = 0; | |
4918 | int64_t block_count = 0, out_pos, in_pos; | |
335e9937 | 4919 | bool force_share = false; |
86ce1f6e RS |
4920 | struct DdInfo dd = { |
4921 | .flags = 0, | |
4922 | .count = 0, | |
4923 | }; | |
4924 | struct DdIo in = { | |
4925 | .bsz = 512, /* Block size is by default 512 bytes */ | |
4926 | .filename = NULL, | |
f7c15533 RS |
4927 | .buf = NULL, |
4928 | .offset = 0 | |
86ce1f6e RS |
4929 | }; |
4930 | struct DdIo out = { | |
4931 | .bsz = 512, | |
4932 | .filename = NULL, | |
f7c15533 RS |
4933 | .buf = NULL, |
4934 | .offset = 0 | |
86ce1f6e RS |
4935 | }; |
4936 | ||
4937 | const struct DdOpts options[] = { | |
4938 | { "bs", img_dd_bs, C_BS }, | |
4939 | { "count", img_dd_count, C_COUNT }, | |
4940 | { "if", img_dd_if, C_IF }, | |
4941 | { "of", img_dd_of, C_OF }, | |
f7c15533 | 4942 | { "skip", img_dd_skip, C_SKIP }, |
86ce1f6e RS |
4943 | { NULL, NULL, 0 } |
4944 | }; | |
4945 | const struct option long_options[] = { | |
4946 | { "help", no_argument, 0, 'h'}, | |
83d4bf94 | 4947 | { "object", required_argument, 0, OPTION_OBJECT}, |
86ce1f6e | 4948 | { "image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 4949 | { "force-share", no_argument, 0, 'U'}, |
86ce1f6e RS |
4950 | { 0, 0, 0, 0 } |
4951 | }; | |
4952 | ||
335e9937 | 4953 | while ((c = getopt_long(argc, argv, ":hf:O:U", long_options, NULL))) { |
86ce1f6e RS |
4954 | if (c == EOF) { |
4955 | break; | |
4956 | } | |
4957 | switch (c) { | |
4958 | case 'O': | |
4959 | out_fmt = optarg; | |
4960 | break; | |
4961 | case 'f': | |
4962 | fmt = optarg; | |
4963 | break; | |
c9192973 SH |
4964 | case ':': |
4965 | missing_argument(argv[optind - 1]); | |
4966 | break; | |
86ce1f6e | 4967 | case '?': |
c9192973 SH |
4968 | unrecognized_option(argv[optind - 1]); |
4969 | break; | |
86ce1f6e RS |
4970 | case 'h': |
4971 | help(); | |
4972 | break; | |
335e9937 FZ |
4973 | case 'U': |
4974 | force_share = true; | |
4975 | break; | |
2a245709 | 4976 | case OPTION_OBJECT: |
99b1e646 | 4977 | user_creatable_process_cmdline(optarg); |
2a245709 | 4978 | break; |
86ce1f6e RS |
4979 | case OPTION_IMAGE_OPTS: |
4980 | image_opts = true; | |
4981 | break; | |
4982 | } | |
4983 | } | |
4984 | ||
4985 | for (i = optind; i < argc; i++) { | |
4986 | int j; | |
4987 | arg = g_strdup(argv[i]); | |
4988 | ||
4989 | tmp = strchr(arg, '='); | |
4990 | if (tmp == NULL) { | |
4991 | error_report("unrecognized operand %s", arg); | |
4992 | ret = -1; | |
4993 | goto out; | |
4994 | } | |
4995 | ||
4996 | *tmp++ = '\0'; | |
4997 | ||
4998 | for (j = 0; options[j].name != NULL; j++) { | |
4999 | if (!strcmp(arg, options[j].name)) { | |
5000 | break; | |
5001 | } | |
5002 | } | |
5003 | if (options[j].name == NULL) { | |
5004 | error_report("unrecognized operand %s", arg); | |
5005 | ret = -1; | |
5006 | goto out; | |
5007 | } | |
5008 | ||
5009 | if (options[j].f(tmp, &in, &out, &dd) != 0) { | |
5010 | ret = -1; | |
5011 | goto out; | |
5012 | } | |
5013 | dd.flags |= options[j].flag; | |
5014 | g_free(arg); | |
5015 | arg = NULL; | |
5016 | } | |
5017 | ||
5018 | if (!(dd.flags & C_IF && dd.flags & C_OF)) { | |
5019 | error_report("Must specify both input and output files"); | |
5020 | ret = -1; | |
5021 | goto out; | |
5022 | } | |
83d4bf94 | 5023 | |
335e9937 FZ |
5024 | blk1 = img_open(image_opts, in.filename, fmt, 0, false, false, |
5025 | force_share); | |
86ce1f6e RS |
5026 | |
5027 | if (!blk1) { | |
5028 | ret = -1; | |
5029 | goto out; | |
5030 | } | |
5031 | ||
5032 | drv = bdrv_find_format(out_fmt); | |
5033 | if (!drv) { | |
5034 | error_report("Unknown file format"); | |
5035 | ret = -1; | |
5036 | goto out; | |
5037 | } | |
5038 | proto_drv = bdrv_find_protocol(out.filename, true, &local_err); | |
5039 | ||
5040 | if (!proto_drv) { | |
5041 | error_report_err(local_err); | |
5042 | ret = -1; | |
5043 | goto out; | |
5044 | } | |
5045 | if (!drv->create_opts) { | |
5046 | error_report("Format driver '%s' does not support image creation", | |
5047 | drv->format_name); | |
5048 | ret = -1; | |
5049 | goto out; | |
5050 | } | |
5051 | if (!proto_drv->create_opts) { | |
5052 | error_report("Protocol driver '%s' does not support image creation", | |
5053 | proto_drv->format_name); | |
5054 | ret = -1; | |
5055 | goto out; | |
5056 | } | |
5057 | create_opts = qemu_opts_append(create_opts, drv->create_opts); | |
5058 | create_opts = qemu_opts_append(create_opts, proto_drv->create_opts); | |
5059 | ||
5060 | opts = qemu_opts_create(create_opts, NULL, 0, &error_abort); | |
5061 | ||
5062 | size = blk_getlength(blk1); | |
5063 | if (size < 0) { | |
5064 | error_report("Failed to get size for '%s'", in.filename); | |
5065 | ret = -1; | |
5066 | goto out; | |
5067 | } | |
5068 | ||
5069 | if (dd.flags & C_COUNT && dd.count <= INT64_MAX / in.bsz && | |
5070 | dd.count * in.bsz < size) { | |
5071 | size = dd.count * in.bsz; | |
5072 | } | |
5073 | ||
f7c15533 RS |
5074 | /* Overflow means the specified offset is beyond input image's size */ |
5075 | if (dd.flags & C_SKIP && (in.offset > INT64_MAX / in.bsz || | |
5076 | size < in.bsz * in.offset)) { | |
5077 | qemu_opt_set_number(opts, BLOCK_OPT_SIZE, 0, &error_abort); | |
5078 | } else { | |
5079 | qemu_opt_set_number(opts, BLOCK_OPT_SIZE, | |
5080 | size - in.bsz * in.offset, &error_abort); | |
5081 | } | |
86ce1f6e RS |
5082 | |
5083 | ret = bdrv_create(drv, out.filename, opts, &local_err); | |
5084 | if (ret < 0) { | |
5085 | error_reportf_err(local_err, | |
5086 | "%s: error while creating output image: ", | |
5087 | out.filename); | |
5088 | ret = -1; | |
5089 | goto out; | |
5090 | } | |
5091 | ||
ea204dda DB |
5092 | /* TODO, we can't honour --image-opts for the target, |
5093 | * since it needs to be given in a format compatible | |
5094 | * with the bdrv_create() call above which does not | |
5095 | * support image-opts style. | |
5096 | */ | |
29cf9336 | 5097 | blk2 = img_open_file(out.filename, NULL, out_fmt, BDRV_O_RDWR, |
ea204dda | 5098 | false, false, false); |
86ce1f6e RS |
5099 | |
5100 | if (!blk2) { | |
5101 | ret = -1; | |
5102 | goto out; | |
5103 | } | |
5104 | ||
f7c15533 RS |
5105 | if (dd.flags & C_SKIP && (in.offset > INT64_MAX / in.bsz || |
5106 | size < in.offset * in.bsz)) { | |
5107 | /* We give a warning if the skip option is bigger than the input | |
5108 | * size and create an empty output disk image (i.e. like dd(1)). | |
5109 | */ | |
5110 | error_report("%s: cannot skip to specified offset", in.filename); | |
5111 | in_pos = size; | |
5112 | } else { | |
5113 | in_pos = in.offset * in.bsz; | |
5114 | } | |
5115 | ||
86ce1f6e RS |
5116 | in.buf = g_new(uint8_t, in.bsz); |
5117 | ||
f7c15533 | 5118 | for (out_pos = 0; in_pos < size; block_count++) { |
86ce1f6e RS |
5119 | int in_ret, out_ret; |
5120 | ||
5121 | if (in_pos + in.bsz > size) { | |
5122 | in_ret = blk_pread(blk1, in_pos, in.buf, size - in_pos); | |
5123 | } else { | |
5124 | in_ret = blk_pread(blk1, in_pos, in.buf, in.bsz); | |
5125 | } | |
5126 | if (in_ret < 0) { | |
5127 | error_report("error while reading from input image file: %s", | |
5128 | strerror(-in_ret)); | |
5129 | ret = -1; | |
5130 | goto out; | |
5131 | } | |
5132 | in_pos += in_ret; | |
5133 | ||
5134 | out_ret = blk_pwrite(blk2, out_pos, in.buf, in_ret, 0); | |
5135 | ||
5136 | if (out_ret < 0) { | |
5137 | error_report("error while writing to output image file: %s", | |
5138 | strerror(-out_ret)); | |
5139 | ret = -1; | |
5140 | goto out; | |
5141 | } | |
5142 | out_pos += out_ret; | |
5143 | } | |
5144 | ||
5145 | out: | |
5146 | g_free(arg); | |
5147 | qemu_opts_del(opts); | |
5148 | qemu_opts_free(create_opts); | |
5149 | blk_unref(blk1); | |
5150 | blk_unref(blk2); | |
5151 | g_free(in.filename); | |
5152 | g_free(out.filename); | |
5153 | g_free(in.buf); | |
5154 | g_free(out.buf); | |
5155 | ||
5156 | if (ret) { | |
b6133b8c KW |
5157 | return 1; |
5158 | } | |
5159 | return 0; | |
5160 | } | |
5161 | ||
fd03c2b8 SH |
5162 | static void dump_json_block_measure_info(BlockMeasureInfo *info) |
5163 | { | |
eab3a467 | 5164 | GString *str; |
fd03c2b8 SH |
5165 | QObject *obj; |
5166 | Visitor *v = qobject_output_visitor_new(&obj); | |
5167 | ||
5168 | visit_type_BlockMeasureInfo(v, NULL, &info, &error_abort); | |
5169 | visit_complete(v, &obj); | |
6589f459 | 5170 | str = qobject_to_json_pretty(obj, true); |
fd03c2b8 | 5171 | assert(str != NULL); |
eab3a467 | 5172 | printf("%s\n", str->str); |
cb3e7f08 | 5173 | qobject_unref(obj); |
fd03c2b8 | 5174 | visit_free(v); |
eab3a467 | 5175 | g_string_free(str, true); |
fd03c2b8 SH |
5176 | } |
5177 | ||
5178 | static int img_measure(int argc, char **argv) | |
5179 | { | |
5180 | static const struct option long_options[] = { | |
5181 | {"help", no_argument, 0, 'h'}, | |
5182 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, | |
5183 | {"object", required_argument, 0, OPTION_OBJECT}, | |
5184 | {"output", required_argument, 0, OPTION_OUTPUT}, | |
5185 | {"size", required_argument, 0, OPTION_SIZE}, | |
5186 | {"force-share", no_argument, 0, 'U'}, | |
5187 | {0, 0, 0, 0} | |
5188 | }; | |
5189 | OutputFormat output_format = OFORMAT_HUMAN; | |
5190 | BlockBackend *in_blk = NULL; | |
5191 | BlockDriver *drv; | |
5192 | const char *filename = NULL; | |
5193 | const char *fmt = NULL; | |
5194 | const char *out_fmt = "raw"; | |
5195 | char *options = NULL; | |
5196 | char *snapshot_name = NULL; | |
5197 | bool force_share = false; | |
5198 | QemuOpts *opts = NULL; | |
5199 | QemuOpts *object_opts = NULL; | |
5200 | QemuOpts *sn_opts = NULL; | |
5201 | QemuOptsList *create_opts = NULL; | |
5202 | bool image_opts = false; | |
5203 | uint64_t img_size = UINT64_MAX; | |
5204 | BlockMeasureInfo *info = NULL; | |
5205 | Error *local_err = NULL; | |
5206 | int ret = 1; | |
5207 | int c; | |
5208 | ||
5209 | while ((c = getopt_long(argc, argv, "hf:O:o:l:U", | |
5210 | long_options, NULL)) != -1) { | |
5211 | switch (c) { | |
5212 | case '?': | |
5213 | case 'h': | |
5214 | help(); | |
5215 | break; | |
5216 | case 'f': | |
5217 | fmt = optarg; | |
5218 | break; | |
5219 | case 'O': | |
5220 | out_fmt = optarg; | |
5221 | break; | |
5222 | case 'o': | |
6d2b5cba | 5223 | if (accumulate_options(&options, optarg) < 0) { |
fd03c2b8 SH |
5224 | goto out; |
5225 | } | |
fd03c2b8 SH |
5226 | break; |
5227 | case 'l': | |
5228 | if (strstart(optarg, SNAPSHOT_OPT_BASE, NULL)) { | |
5229 | sn_opts = qemu_opts_parse_noisily(&internal_snapshot_opts, | |
5230 | optarg, false); | |
5231 | if (!sn_opts) { | |
5232 | error_report("Failed in parsing snapshot param '%s'", | |
5233 | optarg); | |
5234 | goto out; | |
5235 | } | |
5236 | } else { | |
5237 | snapshot_name = optarg; | |
5238 | } | |
5239 | break; | |
5240 | case 'U': | |
5241 | force_share = true; | |
5242 | break; | |
5243 | case OPTION_OBJECT: | |
99b1e646 | 5244 | user_creatable_process_cmdline(optarg); |
fd03c2b8 SH |
5245 | break; |
5246 | case OPTION_IMAGE_OPTS: | |
5247 | image_opts = true; | |
5248 | break; | |
5249 | case OPTION_OUTPUT: | |
5250 | if (!strcmp(optarg, "json")) { | |
5251 | output_format = OFORMAT_JSON; | |
5252 | } else if (!strcmp(optarg, "human")) { | |
5253 | output_format = OFORMAT_HUMAN; | |
5254 | } else { | |
5255 | error_report("--output must be used with human or json " | |
5256 | "as argument."); | |
5257 | goto out; | |
5258 | } | |
5259 | break; | |
5260 | case OPTION_SIZE: | |
5261 | { | |
5262 | int64_t sval; | |
5263 | ||
43d589b0 | 5264 | sval = cvtnum("image size", optarg); |
fd03c2b8 | 5265 | if (sval < 0) { |
fd03c2b8 SH |
5266 | goto out; |
5267 | } | |
5268 | img_size = (uint64_t)sval; | |
5269 | } | |
5270 | break; | |
5271 | } | |
5272 | } | |
5273 | ||
fd03c2b8 SH |
5274 | if (argc - optind > 1) { |
5275 | error_report("At most one filename argument is allowed."); | |
5276 | goto out; | |
5277 | } else if (argc - optind == 1) { | |
5278 | filename = argv[optind]; | |
5279 | } | |
5280 | ||
c3673dcf SH |
5281 | if (!filename && (image_opts || fmt || snapshot_name || sn_opts)) { |
5282 | error_report("--image-opts, -f, and -l require a filename argument."); | |
fd03c2b8 SH |
5283 | goto out; |
5284 | } | |
5285 | if (filename && img_size != UINT64_MAX) { | |
5286 | error_report("--size N cannot be used together with a filename."); | |
5287 | goto out; | |
5288 | } | |
5289 | if (!filename && img_size == UINT64_MAX) { | |
5290 | error_report("Either --size N or one filename must be specified."); | |
5291 | goto out; | |
5292 | } | |
5293 | ||
5294 | if (filename) { | |
5295 | in_blk = img_open(image_opts, filename, fmt, 0, | |
5296 | false, false, force_share); | |
5297 | if (!in_blk) { | |
5298 | goto out; | |
5299 | } | |
5300 | ||
5301 | if (sn_opts) { | |
5302 | bdrv_snapshot_load_tmp(blk_bs(in_blk), | |
5303 | qemu_opt_get(sn_opts, SNAPSHOT_OPT_ID), | |
5304 | qemu_opt_get(sn_opts, SNAPSHOT_OPT_NAME), | |
5305 | &local_err); | |
5306 | } else if (snapshot_name != NULL) { | |
5307 | bdrv_snapshot_load_tmp_by_id_or_name(blk_bs(in_blk), | |
5308 | snapshot_name, &local_err); | |
5309 | } | |
5310 | if (local_err) { | |
5311 | error_reportf_err(local_err, "Failed to load snapshot: "); | |
5312 | goto out; | |
5313 | } | |
5314 | } | |
5315 | ||
5316 | drv = bdrv_find_format(out_fmt); | |
5317 | if (!drv) { | |
5318 | error_report("Unknown file format '%s'", out_fmt); | |
5319 | goto out; | |
5320 | } | |
5321 | if (!drv->create_opts) { | |
5322 | error_report("Format driver '%s' does not support image creation", | |
5323 | drv->format_name); | |
5324 | goto out; | |
5325 | } | |
5326 | ||
5327 | create_opts = qemu_opts_append(create_opts, drv->create_opts); | |
5328 | create_opts = qemu_opts_append(create_opts, bdrv_file.create_opts); | |
5329 | opts = qemu_opts_create(create_opts, NULL, 0, &error_abort); | |
5330 | if (options) { | |
235e59cf | 5331 | if (!qemu_opts_do_parse(opts, options, NULL, &local_err)) { |
fd03c2b8 SH |
5332 | error_report_err(local_err); |
5333 | error_report("Invalid options for file format '%s'", out_fmt); | |
5334 | goto out; | |
5335 | } | |
5336 | } | |
5337 | if (img_size != UINT64_MAX) { | |
5338 | qemu_opt_set_number(opts, BLOCK_OPT_SIZE, img_size, &error_abort); | |
5339 | } | |
5340 | ||
5341 | info = bdrv_measure(drv, opts, in_blk ? blk_bs(in_blk) : NULL, &local_err); | |
5342 | if (local_err) { | |
5343 | error_report_err(local_err); | |
5344 | goto out; | |
5345 | } | |
5346 | ||
5347 | if (output_format == OFORMAT_HUMAN) { | |
5348 | printf("required size: %" PRIu64 "\n", info->required); | |
5349 | printf("fully allocated size: %" PRIu64 "\n", info->fully_allocated); | |
5d72c68b EB |
5350 | if (info->has_bitmaps) { |
5351 | printf("bitmaps size: %" PRIu64 "\n", info->bitmaps); | |
5352 | } | |
fd03c2b8 SH |
5353 | } else { |
5354 | dump_json_block_measure_info(info); | |
5355 | } | |
5356 | ||
5357 | ret = 0; | |
5358 | ||
5359 | out: | |
5360 | qapi_free_BlockMeasureInfo(info); | |
5361 | qemu_opts_del(object_opts); | |
5362 | qemu_opts_del(opts); | |
5363 | qemu_opts_del(sn_opts); | |
5364 | qemu_opts_free(create_opts); | |
5365 | g_free(options); | |
5366 | blk_unref(in_blk); | |
5367 | return ret; | |
5368 | } | |
b6133b8c | 5369 | |
c227f099 | 5370 | static const img_cmd_t img_cmds[] = { |
153859be SB |
5371 | #define DEF(option, callback, arg_string) \ |
5372 | { option, callback }, | |
5373 | #include "qemu-img-cmds.h" | |
5374 | #undef DEF | |
153859be SB |
5375 | { NULL, NULL, }, |
5376 | }; | |
5377 | ||
ea2384d3 FB |
5378 | int main(int argc, char **argv) |
5379 | { | |
c227f099 | 5380 | const img_cmd_t *cmd; |
153859be | 5381 | const char *cmdname; |
7db1689c | 5382 | int c; |
7db1689c JC |
5383 | static const struct option long_options[] = { |
5384 | {"help", no_argument, 0, 'h'}, | |
10985131 | 5385 | {"version", no_argument, 0, 'V'}, |
06a1e0c1 | 5386 | {"trace", required_argument, NULL, 'T'}, |
7db1689c JC |
5387 | {0, 0, 0, 0} |
5388 | }; | |
ea2384d3 | 5389 | |
526eda14 MK |
5390 | #ifdef CONFIG_POSIX |
5391 | signal(SIGPIPE, SIG_IGN); | |
5392 | #endif | |
5393 | ||
98c5d2e7 | 5394 | socket_init(); |
f5852efa | 5395 | error_init(argv[0]); |
fe4db84d | 5396 | module_call_init(MODULE_INIT_TRACE); |
10f5bff6 | 5397 | qemu_init_exec_dir(argv[0]); |
53f76e58 | 5398 | |
f9734d5d | 5399 | qemu_init_main_loop(&error_fatal); |
2f78e491 | 5400 | |
e8f2d272 | 5401 | qcrypto_init(&error_fatal); |
c2297088 | 5402 | |
064097d9 | 5403 | module_call_init(MODULE_INIT_QOM); |
ea2384d3 | 5404 | bdrv_init(); |
ac1307ab FZ |
5405 | if (argc < 2) { |
5406 | error_exit("Not enough arguments"); | |
5407 | } | |
153859be | 5408 | |
eb769f74 | 5409 | qemu_add_opts(&qemu_source_opts); |
06a1e0c1 | 5410 | qemu_add_opts(&qemu_trace_opts); |
3babeb15 | 5411 | |
c9192973 | 5412 | while ((c = getopt_long(argc, argv, "+:hVT:", long_options, NULL)) != -1) { |
10985131 | 5413 | switch (c) { |
c9192973 SH |
5414 | case ':': |
5415 | missing_argument(argv[optind - 1]); | |
5416 | return 0; | |
4581c16f | 5417 | case '?': |
c9192973 SH |
5418 | unrecognized_option(argv[optind - 1]); |
5419 | return 0; | |
5420 | case 'h': | |
10985131 DL |
5421 | help(); |
5422 | return 0; | |
5423 | case 'V': | |
5424 | printf(QEMU_IMG_VERSION); | |
5425 | return 0; | |
06a1e0c1 | 5426 | case 'T': |
92eecfff | 5427 | trace_opt_parse(optarg); |
06a1e0c1 | 5428 | break; |
153859be | 5429 | } |
ea2384d3 | 5430 | } |
153859be | 5431 | |
10985131 | 5432 | cmdname = argv[optind]; |
7db1689c | 5433 | |
10985131 DL |
5434 | /* reset getopt_long scanning */ |
5435 | argc -= optind; | |
5436 | if (argc < 1) { | |
5f6979cb JC |
5437 | return 0; |
5438 | } | |
10985131 | 5439 | argv += optind; |
d339d766 | 5440 | qemu_reset_optind(); |
10985131 | 5441 | |
06a1e0c1 DL |
5442 | if (!trace_init_backends()) { |
5443 | exit(1); | |
5444 | } | |
92eecfff | 5445 | trace_init_file(); |
c5955f4f | 5446 | qemu_set_log(LOG_TRACE, &error_fatal); |
06a1e0c1 | 5447 | |
10985131 DL |
5448 | /* find the command */ |
5449 | for (cmd = img_cmds; cmd->name != NULL; cmd++) { | |
5450 | if (!strcmp(cmdname, cmd->name)) { | |
5451 | return cmd->handler(argc, argv); | |
5452 | } | |
5453 | } | |
7db1689c | 5454 | |
153859be | 5455 | /* not found */ |
ac1307ab | 5456 | error_exit("Command not found: %s", cmdname); |
ea2384d3 | 5457 | } |