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Commit | Line | Data |
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e3aff4f6 AL |
1 | /* |
2 | * Command line utility to exercise the QEMU I/O path. | |
3 | * | |
4 | * Copyright (C) 2009 Red Hat, Inc. | |
5 | * Copyright (c) 2003-2005 Silicon Graphics, Inc. | |
6 | * | |
7 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
8 | * See the COPYING file in the top-level directory. | |
9 | */ | |
c32d766a | 10 | #include <sys/time.h> |
e3aff4f6 AL |
11 | #include <sys/types.h> |
12 | #include <stdarg.h> | |
13 | #include <stdio.h> | |
14 | #include <getopt.h> | |
c32d766a | 15 | #include <libgen.h> |
e3aff4f6 AL |
16 | |
17 | #include "qemu-common.h" | |
1de7afc9 | 18 | #include "qemu/main-loop.h" |
737e150e | 19 | #include "block/block_int.h" |
e3aff4f6 | 20 | #include "cmd.h" |
d7bb72c8 | 21 | #include "trace/control.h" |
e3aff4f6 AL |
22 | |
23 | #define VERSION "0.0.1" | |
24 | ||
43642b38 | 25 | #define CMD_NOFILE_OK 0x01 |
e3aff4f6 AL |
26 | |
27 | char *progname; | |
28 | static BlockDriverState *bs; | |
29 | ||
30 | static int misalign; | |
31 | ||
b6e356aa KW |
32 | static int64_t cvtnum(const char *s) |
33 | { | |
34 | char *end; | |
35 | return strtosz_suffix(s, &end, STRTOSZ_DEFSUFFIX_B); | |
36 | } | |
37 | ||
cf070d7e CH |
38 | /* |
39 | * Parse the pattern argument to various sub-commands. | |
40 | * | |
41 | * Because the pattern is used as an argument to memset it must evaluate | |
42 | * to an unsigned integer that fits into a single byte. | |
43 | */ | |
44 | static int parse_pattern(const char *arg) | |
45 | { | |
43642b38 DN |
46 | char *endptr = NULL; |
47 | long pattern; | |
cf070d7e | 48 | |
43642b38 DN |
49 | pattern = strtol(arg, &endptr, 0); |
50 | if (pattern < 0 || pattern > UCHAR_MAX || *endptr != '\0') { | |
51 | printf("%s is not a valid pattern byte\n", arg); | |
52 | return -1; | |
53 | } | |
cf070d7e | 54 | |
43642b38 | 55 | return pattern; |
cf070d7e CH |
56 | } |
57 | ||
e3aff4f6 AL |
58 | /* |
59 | * Memory allocation helpers. | |
60 | * | |
61 | * Make sure memory is aligned by default, or purposefully misaligned if | |
62 | * that is specified on the command line. | |
63 | */ | |
64 | ||
43642b38 | 65 | #define MISALIGN_OFFSET 16 |
e3aff4f6 AL |
66 | static void *qemu_io_alloc(size_t len, int pattern) |
67 | { | |
43642b38 DN |
68 | void *buf; |
69 | ||
70 | if (misalign) { | |
71 | len += MISALIGN_OFFSET; | |
72 | } | |
73 | buf = qemu_blockalign(bs, len); | |
74 | memset(buf, pattern, len); | |
75 | if (misalign) { | |
76 | buf += MISALIGN_OFFSET; | |
77 | } | |
78 | return buf; | |
e3aff4f6 AL |
79 | } |
80 | ||
81 | static void qemu_io_free(void *p) | |
82 | { | |
43642b38 DN |
83 | if (misalign) { |
84 | p -= MISALIGN_OFFSET; | |
85 | } | |
86 | qemu_vfree(p); | |
e3aff4f6 AL |
87 | } |
88 | ||
43642b38 | 89 | static void dump_buffer(const void *buffer, int64_t offset, int len) |
e3aff4f6 | 90 | { |
43642b38 DN |
91 | int i, j; |
92 | const uint8_t *p; | |
93 | ||
94 | for (i = 0, p = buffer; i < len; i += 16) { | |
95 | const uint8_t *s = p; | |
96 | ||
97 | printf("%08" PRIx64 ": ", offset + i); | |
98 | for (j = 0; j < 16 && i + j < len; j++, p++) { | |
99 | printf("%02x ", *p); | |
100 | } | |
101 | printf(" "); | |
102 | for (j = 0; j < 16 && i + j < len; j++, s++) { | |
103 | if (isalnum(*s)) { | |
104 | printf("%c", *s); | |
105 | } else { | |
106 | printf("."); | |
107 | } | |
108 | } | |
109 | printf("\n"); | |
110 | } | |
e3aff4f6 AL |
111 | } |
112 | ||
43642b38 DN |
113 | static void print_report(const char *op, struct timeval *t, int64_t offset, |
114 | int count, int total, int cnt, int Cflag) | |
e3aff4f6 | 115 | { |
43642b38 DN |
116 | char s1[64], s2[64], ts[64]; |
117 | ||
118 | timestr(t, ts, sizeof(ts), Cflag ? VERBOSE_FIXED_TIME : 0); | |
119 | if (!Cflag) { | |
120 | cvtstr((double)total, s1, sizeof(s1)); | |
121 | cvtstr(tdiv((double)total, *t), s2, sizeof(s2)); | |
122 | printf("%s %d/%d bytes at offset %" PRId64 "\n", | |
123 | op, total, count, offset); | |
124 | printf("%s, %d ops; %s (%s/sec and %.4f ops/sec)\n", | |
125 | s1, cnt, ts, s2, tdiv((double)cnt, *t)); | |
126 | } else {/* bytes,ops,time,bytes/sec,ops/sec */ | |
127 | printf("%d,%d,%s,%.3f,%.3f\n", | |
128 | total, cnt, ts, | |
129 | tdiv((double)total, *t), | |
130 | tdiv((double)cnt, *t)); | |
131 | } | |
e3aff4f6 AL |
132 | } |
133 | ||
cf57298a CH |
134 | /* |
135 | * Parse multiple length statements for vectored I/O, and construct an I/O | |
136 | * vector matching it. | |
137 | */ | |
138 | static void * | |
139 | create_iovec(QEMUIOVector *qiov, char **argv, int nr_iov, int pattern) | |
140 | { | |
031380d8 | 141 | size_t *sizes = g_new0(size_t, nr_iov); |
43642b38 DN |
142 | size_t count = 0; |
143 | void *buf = NULL; | |
144 | void *p; | |
145 | int i; | |
146 | ||
147 | for (i = 0; i < nr_iov; i++) { | |
148 | char *arg = argv[i]; | |
149 | int64_t len; | |
150 | ||
151 | len = cvtnum(arg); | |
152 | if (len < 0) { | |
153 | printf("non-numeric length argument -- %s\n", arg); | |
154 | goto fail; | |
155 | } | |
156 | ||
157 | /* should be SIZE_T_MAX, but that doesn't exist */ | |
158 | if (len > INT_MAX) { | |
159 | printf("too large length argument -- %s\n", arg); | |
160 | goto fail; | |
161 | } | |
162 | ||
163 | if (len & 0x1ff) { | |
164 | printf("length argument %" PRId64 | |
165 | " is not sector aligned\n", len); | |
166 | goto fail; | |
167 | } | |
168 | ||
169 | sizes[i] = len; | |
170 | count += len; | |
171 | } | |
172 | ||
173 | qemu_iovec_init(qiov, nr_iov); | |
174 | ||
175 | buf = p = qemu_io_alloc(count, pattern); | |
176 | ||
177 | for (i = 0; i < nr_iov; i++) { | |
178 | qemu_iovec_add(qiov, p, sizes[i]); | |
179 | p += sizes[i]; | |
180 | } | |
cf57298a | 181 | |
40a0d7c3 | 182 | fail: |
031380d8 | 183 | g_free(sizes); |
43642b38 | 184 | return buf; |
cf57298a CH |
185 | } |
186 | ||
e3aff4f6 AL |
187 | static int do_read(char *buf, int64_t offset, int count, int *total) |
188 | { | |
43642b38 | 189 | int ret; |
e3aff4f6 | 190 | |
43642b38 DN |
191 | ret = bdrv_read(bs, offset >> 9, (uint8_t *)buf, count >> 9); |
192 | if (ret < 0) { | |
193 | return ret; | |
194 | } | |
195 | *total = count; | |
196 | return 1; | |
e3aff4f6 AL |
197 | } |
198 | ||
199 | static int do_write(char *buf, int64_t offset, int count, int *total) | |
200 | { | |
43642b38 | 201 | int ret; |
e3aff4f6 | 202 | |
43642b38 DN |
203 | ret = bdrv_write(bs, offset >> 9, (uint8_t *)buf, count >> 9); |
204 | if (ret < 0) { | |
205 | return ret; | |
206 | } | |
207 | *total = count; | |
208 | return 1; | |
e3aff4f6 AL |
209 | } |
210 | ||
211 | static int do_pread(char *buf, int64_t offset, int count, int *total) | |
212 | { | |
43642b38 DN |
213 | *total = bdrv_pread(bs, offset, (uint8_t *)buf, count); |
214 | if (*total < 0) { | |
215 | return *total; | |
216 | } | |
217 | return 1; | |
e3aff4f6 AL |
218 | } |
219 | ||
220 | static int do_pwrite(char *buf, int64_t offset, int count, int *total) | |
221 | { | |
43642b38 DN |
222 | *total = bdrv_pwrite(bs, offset, (uint8_t *)buf, count); |
223 | if (*total < 0) { | |
224 | return *total; | |
225 | } | |
226 | return 1; | |
e3aff4f6 AL |
227 | } |
228 | ||
71b58b82 SH |
229 | typedef struct { |
230 | int64_t offset; | |
231 | int count; | |
232 | int *total; | |
233 | int ret; | |
234 | bool done; | |
235 | } CoWriteZeroes; | |
236 | ||
237 | static void coroutine_fn co_write_zeroes_entry(void *opaque) | |
238 | { | |
239 | CoWriteZeroes *data = opaque; | |
240 | ||
241 | data->ret = bdrv_co_write_zeroes(bs, data->offset / BDRV_SECTOR_SIZE, | |
242 | data->count / BDRV_SECTOR_SIZE); | |
243 | data->done = true; | |
244 | if (data->ret < 0) { | |
245 | *data->total = data->ret; | |
246 | return; | |
247 | } | |
248 | ||
249 | *data->total = data->count; | |
250 | } | |
251 | ||
252 | static int do_co_write_zeroes(int64_t offset, int count, int *total) | |
253 | { | |
254 | Coroutine *co; | |
255 | CoWriteZeroes data = { | |
256 | .offset = offset, | |
257 | .count = count, | |
258 | .total = total, | |
259 | .done = false, | |
260 | }; | |
261 | ||
262 | co = qemu_coroutine_create(co_write_zeroes_entry); | |
263 | qemu_coroutine_enter(co, &data); | |
264 | while (!data.done) { | |
265 | qemu_aio_wait(); | |
266 | } | |
267 | if (data.ret < 0) { | |
268 | return data.ret; | |
269 | } else { | |
270 | return 1; | |
271 | } | |
272 | } | |
273 | ||
791bfa35 KW |
274 | static int do_write_compressed(char *buf, int64_t offset, int count, int *total) |
275 | { | |
276 | int ret; | |
277 | ||
278 | ret = bdrv_write_compressed(bs, offset >> 9, (uint8_t *)buf, count >> 9); | |
279 | if (ret < 0) { | |
280 | return ret; | |
281 | } | |
282 | *total = count; | |
283 | return 1; | |
284 | } | |
285 | ||
ca94dbc7 KW |
286 | static int do_load_vmstate(char *buf, int64_t offset, int count, int *total) |
287 | { | |
43642b38 DN |
288 | *total = bdrv_load_vmstate(bs, (uint8_t *)buf, offset, count); |
289 | if (*total < 0) { | |
290 | return *total; | |
291 | } | |
292 | return 1; | |
ca94dbc7 KW |
293 | } |
294 | ||
295 | static int do_save_vmstate(char *buf, int64_t offset, int count, int *total) | |
296 | { | |
43642b38 DN |
297 | *total = bdrv_save_vmstate(bs, (uint8_t *)buf, offset, count); |
298 | if (*total < 0) { | |
299 | return *total; | |
300 | } | |
301 | return 1; | |
ca94dbc7 KW |
302 | } |
303 | ||
e3aff4f6 AL |
304 | #define NOT_DONE 0x7fffffff |
305 | static void aio_rw_done(void *opaque, int ret) | |
306 | { | |
43642b38 | 307 | *(int *)opaque = ret; |
e3aff4f6 AL |
308 | } |
309 | ||
310 | static int do_aio_readv(QEMUIOVector *qiov, int64_t offset, int *total) | |
311 | { | |
43642b38 | 312 | int async_ret = NOT_DONE; |
e3aff4f6 | 313 | |
ad54ae80 PB |
314 | bdrv_aio_readv(bs, offset >> 9, qiov, qiov->size >> 9, |
315 | aio_rw_done, &async_ret); | |
43642b38 | 316 | while (async_ret == NOT_DONE) { |
a5a5238e | 317 | main_loop_wait(false); |
43642b38 | 318 | } |
e3aff4f6 | 319 | |
43642b38 DN |
320 | *total = qiov->size; |
321 | return async_ret < 0 ? async_ret : 1; | |
e3aff4f6 AL |
322 | } |
323 | ||
324 | static int do_aio_writev(QEMUIOVector *qiov, int64_t offset, int *total) | |
325 | { | |
43642b38 | 326 | int async_ret = NOT_DONE; |
e3aff4f6 | 327 | |
ad54ae80 PB |
328 | bdrv_aio_writev(bs, offset >> 9, qiov, qiov->size >> 9, |
329 | aio_rw_done, &async_ret); | |
43642b38 | 330 | while (async_ret == NOT_DONE) { |
a5a5238e | 331 | main_loop_wait(false); |
43642b38 | 332 | } |
e3aff4f6 | 333 | |
43642b38 DN |
334 | *total = qiov->size; |
335 | return async_ret < 0 ? async_ret : 1; | |
e3aff4f6 AL |
336 | } |
337 | ||
776cbbbd | 338 | struct multiwrite_async_ret { |
43642b38 DN |
339 | int num_done; |
340 | int error; | |
776cbbbd KW |
341 | }; |
342 | ||
343 | static void multiwrite_cb(void *opaque, int ret) | |
344 | { | |
43642b38 | 345 | struct multiwrite_async_ret *async_ret = opaque; |
776cbbbd | 346 | |
43642b38 DN |
347 | async_ret->num_done++; |
348 | if (ret < 0) { | |
349 | async_ret->error = ret; | |
350 | } | |
776cbbbd KW |
351 | } |
352 | ||
353 | static int do_aio_multiwrite(BlockRequest* reqs, int num_reqs, int *total) | |
354 | { | |
43642b38 DN |
355 | int i, ret; |
356 | struct multiwrite_async_ret async_ret = { | |
357 | .num_done = 0, | |
358 | .error = 0, | |
359 | }; | |
360 | ||
361 | *total = 0; | |
362 | for (i = 0; i < num_reqs; i++) { | |
363 | reqs[i].cb = multiwrite_cb; | |
364 | reqs[i].opaque = &async_ret; | |
365 | *total += reqs[i].qiov->size; | |
366 | } | |
367 | ||
368 | ret = bdrv_aio_multiwrite(bs, reqs, num_reqs); | |
369 | if (ret < 0) { | |
370 | return ret; | |
371 | } | |
372 | ||
373 | while (async_ret.num_done < num_reqs) { | |
a5a5238e | 374 | main_loop_wait(false); |
43642b38 DN |
375 | } |
376 | ||
377 | return async_ret.error < 0 ? async_ret.error : 1; | |
776cbbbd | 378 | } |
e3aff4f6 | 379 | |
43642b38 | 380 | static void read_help(void) |
e3aff4f6 | 381 | { |
43642b38 | 382 | printf( |
e3aff4f6 AL |
383 | "\n" |
384 | " reads a range of bytes from the given offset\n" | |
385 | "\n" | |
386 | " Example:\n" | |
387 | " 'read -v 512 1k' - dumps 1 kilobyte read from 512 bytes into the file\n" | |
388 | "\n" | |
389 | " Reads a segment of the currently open file, optionally dumping it to the\n" | |
390 | " standard output stream (with -v option) for subsequent inspection.\n" | |
ca94dbc7 | 391 | " -b, -- read from the VM state rather than the virtual disk\n" |
d9654a58 KW |
392 | " -C, -- report statistics in a machine parsable format\n" |
393 | " -l, -- length for pattern verification (only with -P)\n" | |
e3aff4f6 | 394 | " -p, -- use bdrv_pread to read the file\n" |
c48101ae | 395 | " -P, -- use a pattern to verify read data\n" |
095343ad | 396 | " -q, -- quiet mode, do not show I/O statistics\n" |
d9654a58 KW |
397 | " -s, -- start offset for pattern verification (only with -P)\n" |
398 | " -v, -- dump buffer to standard output\n" | |
e3aff4f6 AL |
399 | "\n"); |
400 | } | |
401 | ||
22a2bdcb BS |
402 | static int read_f(int argc, char **argv); |
403 | ||
404 | static const cmdinfo_t read_cmd = { | |
43642b38 DN |
405 | .name = "read", |
406 | .altname = "r", | |
407 | .cfunc = read_f, | |
408 | .argmin = 2, | |
409 | .argmax = -1, | |
410 | .args = "[-abCpqv] [-P pattern [-s off] [-l len]] off len", | |
411 | .oneline = "reads a number of bytes at a specified offset", | |
412 | .help = read_help, | |
22a2bdcb BS |
413 | }; |
414 | ||
43642b38 | 415 | static int read_f(int argc, char **argv) |
e3aff4f6 | 416 | { |
43642b38 DN |
417 | struct timeval t1, t2; |
418 | int Cflag = 0, pflag = 0, qflag = 0, vflag = 0; | |
419 | int Pflag = 0, sflag = 0, lflag = 0, bflag = 0; | |
420 | int c, cnt; | |
421 | char *buf; | |
422 | int64_t offset; | |
423 | int count; | |
424 | /* Some compilers get confused and warn if this is not initialized. */ | |
425 | int total = 0; | |
426 | int pattern = 0, pattern_offset = 0, pattern_count = 0; | |
427 | ||
428 | while ((c = getopt(argc, argv, "bCl:pP:qs:v")) != EOF) { | |
429 | switch (c) { | |
430 | case 'b': | |
431 | bflag = 1; | |
432 | break; | |
433 | case 'C': | |
434 | Cflag = 1; | |
435 | break; | |
436 | case 'l': | |
437 | lflag = 1; | |
438 | pattern_count = cvtnum(optarg); | |
439 | if (pattern_count < 0) { | |
440 | printf("non-numeric length argument -- %s\n", optarg); | |
441 | return 0; | |
442 | } | |
443 | break; | |
444 | case 'p': | |
445 | pflag = 1; | |
446 | break; | |
447 | case 'P': | |
448 | Pflag = 1; | |
449 | pattern = parse_pattern(optarg); | |
450 | if (pattern < 0) { | |
451 | return 0; | |
452 | } | |
453 | break; | |
454 | case 'q': | |
455 | qflag = 1; | |
456 | break; | |
457 | case 's': | |
458 | sflag = 1; | |
459 | pattern_offset = cvtnum(optarg); | |
460 | if (pattern_offset < 0) { | |
461 | printf("non-numeric length argument -- %s\n", optarg); | |
462 | return 0; | |
463 | } | |
464 | break; | |
465 | case 'v': | |
466 | vflag = 1; | |
467 | break; | |
468 | default: | |
469 | return command_usage(&read_cmd); | |
470 | } | |
471 | } | |
472 | ||
473 | if (optind != argc - 2) { | |
474 | return command_usage(&read_cmd); | |
475 | } | |
476 | ||
477 | if (bflag && pflag) { | |
478 | printf("-b and -p cannot be specified at the same time\n"); | |
479 | return 0; | |
480 | } | |
481 | ||
482 | offset = cvtnum(argv[optind]); | |
483 | if (offset < 0) { | |
484 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
485 | return 0; | |
486 | } | |
487 | ||
488 | optind++; | |
489 | count = cvtnum(argv[optind]); | |
490 | if (count < 0) { | |
491 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
492 | return 0; | |
493 | } | |
e3aff4f6 | 494 | |
d9654a58 KW |
495 | if (!Pflag && (lflag || sflag)) { |
496 | return command_usage(&read_cmd); | |
497 | } | |
498 | ||
499 | if (!lflag) { | |
500 | pattern_count = count - pattern_offset; | |
501 | } | |
502 | ||
503 | if ((pattern_count < 0) || (pattern_count + pattern_offset > count)) { | |
07f35073 | 504 | printf("pattern verification range exceeds end of read data\n"); |
d9654a58 KW |
505 | return 0; |
506 | } | |
507 | ||
5afc8b3d | 508 | if (!pflag) { |
43642b38 DN |
509 | if (offset & 0x1ff) { |
510 | printf("offset %" PRId64 " is not sector aligned\n", | |
511 | offset); | |
512 | return 0; | |
513 | } | |
514 | if (count & 0x1ff) { | |
515 | printf("count %d is not sector aligned\n", | |
516 | count); | |
517 | return 0; | |
518 | } | |
5afc8b3d | 519 | } |
43642b38 DN |
520 | |
521 | buf = qemu_io_alloc(count, 0xab); | |
522 | ||
523 | gettimeofday(&t1, NULL); | |
524 | if (pflag) { | |
525 | cnt = do_pread(buf, offset, count, &total); | |
526 | } else if (bflag) { | |
527 | cnt = do_load_vmstate(buf, offset, count, &total); | |
528 | } else { | |
529 | cnt = do_read(buf, offset, count, &total); | |
530 | } | |
531 | gettimeofday(&t2, NULL); | |
532 | ||
533 | if (cnt < 0) { | |
534 | printf("read failed: %s\n", strerror(-cnt)); | |
535 | goto out; | |
536 | } | |
537 | ||
538 | if (Pflag) { | |
031380d8 | 539 | void *cmp_buf = g_malloc(pattern_count); |
43642b38 DN |
540 | memset(cmp_buf, pattern, pattern_count); |
541 | if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) { | |
542 | printf("Pattern verification failed at offset %" | |
543 | PRId64 ", %d bytes\n", | |
544 | offset + pattern_offset, pattern_count); | |
545 | } | |
031380d8 | 546 | g_free(cmp_buf); |
43642b38 DN |
547 | } |
548 | ||
549 | if (qflag) { | |
550 | goto out; | |
551 | } | |
552 | ||
553 | if (vflag) { | |
554 | dump_buffer(buf, offset, count); | |
555 | } | |
556 | ||
557 | /* Finally, report back -- -C gives a parsable format */ | |
558 | t2 = tsub(t2, t1); | |
559 | print_report("read", &t2, offset, count, total, cnt, Cflag); | |
e3aff4f6 | 560 | |
7d8abfcb | 561 | out: |
43642b38 | 562 | qemu_io_free(buf); |
e3aff4f6 | 563 | |
43642b38 | 564 | return 0; |
e3aff4f6 AL |
565 | } |
566 | ||
43642b38 | 567 | static void readv_help(void) |
e3aff4f6 | 568 | { |
43642b38 | 569 | printf( |
e3aff4f6 AL |
570 | "\n" |
571 | " reads a range of bytes from the given offset into multiple buffers\n" | |
572 | "\n" | |
573 | " Example:\n" | |
574 | " 'readv -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" | |
575 | "\n" | |
576 | " Reads a segment of the currently open file, optionally dumping it to the\n" | |
577 | " standard output stream (with -v option) for subsequent inspection.\n" | |
578 | " Uses multiple iovec buffers if more than one byte range is specified.\n" | |
579 | " -C, -- report statistics in a machine parsable format\n" | |
c48101ae | 580 | " -P, -- use a pattern to verify read data\n" |
e3aff4f6 | 581 | " -v, -- dump buffer to standard output\n" |
095343ad | 582 | " -q, -- quiet mode, do not show I/O statistics\n" |
e3aff4f6 AL |
583 | "\n"); |
584 | } | |
585 | ||
22a2bdcb BS |
586 | static int readv_f(int argc, char **argv); |
587 | ||
588 | static const cmdinfo_t readv_cmd = { | |
43642b38 DN |
589 | .name = "readv", |
590 | .cfunc = readv_f, | |
591 | .argmin = 2, | |
592 | .argmax = -1, | |
593 | .args = "[-Cqv] [-P pattern ] off len [len..]", | |
594 | .oneline = "reads a number of bytes at a specified offset", | |
595 | .help = readv_help, | |
22a2bdcb BS |
596 | }; |
597 | ||
43642b38 | 598 | static int readv_f(int argc, char **argv) |
e3aff4f6 | 599 | { |
43642b38 DN |
600 | struct timeval t1, t2; |
601 | int Cflag = 0, qflag = 0, vflag = 0; | |
602 | int c, cnt; | |
603 | char *buf; | |
604 | int64_t offset; | |
605 | /* Some compilers get confused and warn if this is not initialized. */ | |
606 | int total = 0; | |
607 | int nr_iov; | |
608 | QEMUIOVector qiov; | |
609 | int pattern = 0; | |
610 | int Pflag = 0; | |
611 | ||
612 | while ((c = getopt(argc, argv, "CP:qv")) != EOF) { | |
613 | switch (c) { | |
614 | case 'C': | |
615 | Cflag = 1; | |
616 | break; | |
617 | case 'P': | |
618 | Pflag = 1; | |
619 | pattern = parse_pattern(optarg); | |
620 | if (pattern < 0) { | |
621 | return 0; | |
622 | } | |
623 | break; | |
624 | case 'q': | |
625 | qflag = 1; | |
626 | break; | |
627 | case 'v': | |
628 | vflag = 1; | |
629 | break; | |
630 | default: | |
631 | return command_usage(&readv_cmd); | |
632 | } | |
633 | } | |
634 | ||
635 | if (optind > argc - 2) { | |
636 | return command_usage(&readv_cmd); | |
637 | } | |
638 | ||
639 | ||
640 | offset = cvtnum(argv[optind]); | |
641 | if (offset < 0) { | |
642 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
643 | return 0; | |
644 | } | |
645 | optind++; | |
646 | ||
647 | if (offset & 0x1ff) { | |
648 | printf("offset %" PRId64 " is not sector aligned\n", | |
649 | offset); | |
650 | return 0; | |
651 | } | |
652 | ||
653 | nr_iov = argc - optind; | |
654 | buf = create_iovec(&qiov, &argv[optind], nr_iov, 0xab); | |
f2360620 KW |
655 | if (buf == NULL) { |
656 | return 0; | |
657 | } | |
43642b38 DN |
658 | |
659 | gettimeofday(&t1, NULL); | |
660 | cnt = do_aio_readv(&qiov, offset, &total); | |
661 | gettimeofday(&t2, NULL); | |
662 | ||
663 | if (cnt < 0) { | |
664 | printf("readv failed: %s\n", strerror(-cnt)); | |
665 | goto out; | |
666 | } | |
667 | ||
668 | if (Pflag) { | |
031380d8 | 669 | void *cmp_buf = g_malloc(qiov.size); |
43642b38 DN |
670 | memset(cmp_buf, pattern, qiov.size); |
671 | if (memcmp(buf, cmp_buf, qiov.size)) { | |
672 | printf("Pattern verification failed at offset %" | |
673 | PRId64 ", %zd bytes\n", offset, qiov.size); | |
674 | } | |
031380d8 | 675 | g_free(cmp_buf); |
43642b38 DN |
676 | } |
677 | ||
678 | if (qflag) { | |
679 | goto out; | |
680 | } | |
681 | ||
682 | if (vflag) { | |
683 | dump_buffer(buf, offset, qiov.size); | |
684 | } | |
685 | ||
686 | /* Finally, report back -- -C gives a parsable format */ | |
687 | t2 = tsub(t2, t1); | |
688 | print_report("read", &t2, offset, qiov.size, total, cnt, Cflag); | |
e3aff4f6 | 689 | |
7d8abfcb | 690 | out: |
9e559533 | 691 | qemu_iovec_destroy(&qiov); |
43642b38 DN |
692 | qemu_io_free(buf); |
693 | return 0; | |
e3aff4f6 AL |
694 | } |
695 | ||
43642b38 | 696 | static void write_help(void) |
e3aff4f6 | 697 | { |
43642b38 | 698 | printf( |
e3aff4f6 AL |
699 | "\n" |
700 | " writes a range of bytes from the given offset\n" | |
701 | "\n" | |
702 | " Example:\n" | |
703 | " 'write 512 1k' - writes 1 kilobyte at 512 bytes into the open file\n" | |
704 | "\n" | |
705 | " Writes into a segment of the currently open file, using a buffer\n" | |
706 | " filled with a set pattern (0xcdcdcdcd).\n" | |
ca94dbc7 | 707 | " -b, -- write to the VM state rather than the virtual disk\n" |
791bfa35 | 708 | " -c, -- write compressed data with bdrv_write_compressed\n" |
e3aff4f6 AL |
709 | " -p, -- use bdrv_pwrite to write the file\n" |
710 | " -P, -- use different pattern to fill file\n" | |
711 | " -C, -- report statistics in a machine parsable format\n" | |
095343ad | 712 | " -q, -- quiet mode, do not show I/O statistics\n" |
71b58b82 | 713 | " -z, -- write zeroes using bdrv_co_write_zeroes\n" |
e3aff4f6 AL |
714 | "\n"); |
715 | } | |
716 | ||
22a2bdcb BS |
717 | static int write_f(int argc, char **argv); |
718 | ||
719 | static const cmdinfo_t write_cmd = { | |
43642b38 DN |
720 | .name = "write", |
721 | .altname = "w", | |
722 | .cfunc = write_f, | |
723 | .argmin = 2, | |
724 | .argmax = -1, | |
791bfa35 | 725 | .args = "[-bcCpqz] [-P pattern ] off len", |
43642b38 DN |
726 | .oneline = "writes a number of bytes at a specified offset", |
727 | .help = write_help, | |
22a2bdcb BS |
728 | }; |
729 | ||
43642b38 | 730 | static int write_f(int argc, char **argv) |
e3aff4f6 | 731 | { |
43642b38 | 732 | struct timeval t1, t2; |
71b58b82 | 733 | int Cflag = 0, pflag = 0, qflag = 0, bflag = 0, Pflag = 0, zflag = 0; |
791bfa35 | 734 | int cflag = 0; |
43642b38 | 735 | int c, cnt; |
71b58b82 | 736 | char *buf = NULL; |
43642b38 DN |
737 | int64_t offset; |
738 | int count; | |
739 | /* Some compilers get confused and warn if this is not initialized. */ | |
740 | int total = 0; | |
741 | int pattern = 0xcd; | |
742 | ||
791bfa35 | 743 | while ((c = getopt(argc, argv, "bcCpP:qz")) != EOF) { |
43642b38 DN |
744 | switch (c) { |
745 | case 'b': | |
746 | bflag = 1; | |
747 | break; | |
791bfa35 KW |
748 | case 'c': |
749 | cflag = 1; | |
750 | break; | |
43642b38 DN |
751 | case 'C': |
752 | Cflag = 1; | |
753 | break; | |
754 | case 'p': | |
755 | pflag = 1; | |
756 | break; | |
757 | case 'P': | |
71b58b82 | 758 | Pflag = 1; |
43642b38 DN |
759 | pattern = parse_pattern(optarg); |
760 | if (pattern < 0) { | |
761 | return 0; | |
762 | } | |
763 | break; | |
764 | case 'q': | |
765 | qflag = 1; | |
766 | break; | |
71b58b82 SH |
767 | case 'z': |
768 | zflag = 1; | |
769 | break; | |
43642b38 DN |
770 | default: |
771 | return command_usage(&write_cmd); | |
772 | } | |
773 | } | |
774 | ||
775 | if (optind != argc - 2) { | |
776 | return command_usage(&write_cmd); | |
777 | } | |
778 | ||
71b58b82 SH |
779 | if (bflag + pflag + zflag > 1) { |
780 | printf("-b, -p, or -z cannot be specified at the same time\n"); | |
781 | return 0; | |
782 | } | |
783 | ||
784 | if (zflag && Pflag) { | |
785 | printf("-z and -P cannot be specified at the same time\n"); | |
43642b38 DN |
786 | return 0; |
787 | } | |
788 | ||
789 | offset = cvtnum(argv[optind]); | |
790 | if (offset < 0) { | |
791 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
792 | return 0; | |
793 | } | |
794 | ||
795 | optind++; | |
796 | count = cvtnum(argv[optind]); | |
797 | if (count < 0) { | |
798 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
799 | return 0; | |
800 | } | |
801 | ||
802 | if (!pflag) { | |
803 | if (offset & 0x1ff) { | |
804 | printf("offset %" PRId64 " is not sector aligned\n", | |
805 | offset); | |
806 | return 0; | |
807 | } | |
808 | ||
809 | if (count & 0x1ff) { | |
810 | printf("count %d is not sector aligned\n", | |
811 | count); | |
812 | return 0; | |
813 | } | |
814 | } | |
815 | ||
71b58b82 SH |
816 | if (!zflag) { |
817 | buf = qemu_io_alloc(count, pattern); | |
818 | } | |
43642b38 DN |
819 | |
820 | gettimeofday(&t1, NULL); | |
821 | if (pflag) { | |
822 | cnt = do_pwrite(buf, offset, count, &total); | |
823 | } else if (bflag) { | |
824 | cnt = do_save_vmstate(buf, offset, count, &total); | |
71b58b82 SH |
825 | } else if (zflag) { |
826 | cnt = do_co_write_zeroes(offset, count, &total); | |
791bfa35 KW |
827 | } else if (cflag) { |
828 | cnt = do_write_compressed(buf, offset, count, &total); | |
43642b38 DN |
829 | } else { |
830 | cnt = do_write(buf, offset, count, &total); | |
831 | } | |
832 | gettimeofday(&t2, NULL); | |
833 | ||
834 | if (cnt < 0) { | |
835 | printf("write failed: %s\n", strerror(-cnt)); | |
836 | goto out; | |
837 | } | |
838 | ||
839 | if (qflag) { | |
840 | goto out; | |
841 | } | |
842 | ||
843 | /* Finally, report back -- -C gives a parsable format */ | |
844 | t2 = tsub(t2, t1); | |
845 | print_report("wrote", &t2, offset, count, total, cnt, Cflag); | |
e3aff4f6 | 846 | |
7d8abfcb | 847 | out: |
71b58b82 SH |
848 | if (!zflag) { |
849 | qemu_io_free(buf); | |
850 | } | |
e3aff4f6 | 851 | |
43642b38 | 852 | return 0; |
e3aff4f6 AL |
853 | } |
854 | ||
e3aff4f6 AL |
855 | static void |
856 | writev_help(void) | |
857 | { | |
43642b38 | 858 | printf( |
e3aff4f6 AL |
859 | "\n" |
860 | " writes a range of bytes from the given offset source from multiple buffers\n" | |
861 | "\n" | |
862 | " Example:\n" | |
863 | " 'write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" | |
864 | "\n" | |
865 | " Writes into a segment of the currently open file, using a buffer\n" | |
866 | " filled with a set pattern (0xcdcdcdcd).\n" | |
867 | " -P, -- use different pattern to fill file\n" | |
868 | " -C, -- report statistics in a machine parsable format\n" | |
095343ad | 869 | " -q, -- quiet mode, do not show I/O statistics\n" |
e3aff4f6 AL |
870 | "\n"); |
871 | } | |
872 | ||
22a2bdcb BS |
873 | static int writev_f(int argc, char **argv); |
874 | ||
875 | static const cmdinfo_t writev_cmd = { | |
43642b38 DN |
876 | .name = "writev", |
877 | .cfunc = writev_f, | |
878 | .argmin = 2, | |
879 | .argmax = -1, | |
880 | .args = "[-Cq] [-P pattern ] off len [len..]", | |
881 | .oneline = "writes a number of bytes at a specified offset", | |
882 | .help = writev_help, | |
22a2bdcb BS |
883 | }; |
884 | ||
43642b38 | 885 | static int writev_f(int argc, char **argv) |
e3aff4f6 | 886 | { |
43642b38 DN |
887 | struct timeval t1, t2; |
888 | int Cflag = 0, qflag = 0; | |
889 | int c, cnt; | |
890 | char *buf; | |
891 | int64_t offset; | |
892 | /* Some compilers get confused and warn if this is not initialized. */ | |
893 | int total = 0; | |
894 | int nr_iov; | |
895 | int pattern = 0xcd; | |
896 | QEMUIOVector qiov; | |
897 | ||
898 | while ((c = getopt(argc, argv, "CqP:")) != EOF) { | |
899 | switch (c) { | |
900 | case 'C': | |
901 | Cflag = 1; | |
902 | break; | |
903 | case 'q': | |
904 | qflag = 1; | |
905 | break; | |
906 | case 'P': | |
907 | pattern = parse_pattern(optarg); | |
908 | if (pattern < 0) { | |
909 | return 0; | |
910 | } | |
911 | break; | |
912 | default: | |
913 | return command_usage(&writev_cmd); | |
914 | } | |
915 | } | |
916 | ||
917 | if (optind > argc - 2) { | |
918 | return command_usage(&writev_cmd); | |
919 | } | |
920 | ||
921 | offset = cvtnum(argv[optind]); | |
922 | if (offset < 0) { | |
923 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
924 | return 0; | |
925 | } | |
926 | optind++; | |
927 | ||
928 | if (offset & 0x1ff) { | |
929 | printf("offset %" PRId64 " is not sector aligned\n", | |
930 | offset); | |
931 | return 0; | |
932 | } | |
933 | ||
934 | nr_iov = argc - optind; | |
935 | buf = create_iovec(&qiov, &argv[optind], nr_iov, pattern); | |
f2360620 KW |
936 | if (buf == NULL) { |
937 | return 0; | |
938 | } | |
43642b38 DN |
939 | |
940 | gettimeofday(&t1, NULL); | |
941 | cnt = do_aio_writev(&qiov, offset, &total); | |
942 | gettimeofday(&t2, NULL); | |
943 | ||
944 | if (cnt < 0) { | |
945 | printf("writev failed: %s\n", strerror(-cnt)); | |
946 | goto out; | |
947 | } | |
948 | ||
949 | if (qflag) { | |
950 | goto out; | |
951 | } | |
952 | ||
953 | /* Finally, report back -- -C gives a parsable format */ | |
954 | t2 = tsub(t2, t1); | |
955 | print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag); | |
7d8abfcb | 956 | out: |
9e559533 | 957 | qemu_iovec_destroy(&qiov); |
43642b38 DN |
958 | qemu_io_free(buf); |
959 | return 0; | |
e3aff4f6 AL |
960 | } |
961 | ||
43642b38 | 962 | static void multiwrite_help(void) |
776cbbbd | 963 | { |
43642b38 | 964 | printf( |
776cbbbd KW |
965 | "\n" |
966 | " writes a range of bytes from the given offset source from multiple buffers,\n" | |
967 | " in a batch of requests that may be merged by qemu\n" | |
968 | "\n" | |
969 | " Example:\n" | |
b2bedb21 | 970 | " 'multiwrite 512 1k 1k ; 4k 1k'\n" |
776cbbbd KW |
971 | " writes 2 kB at 512 bytes and 1 kB at 4 kB into the open file\n" |
972 | "\n" | |
973 | " Writes into a segment of the currently open file, using a buffer\n" | |
974 | " filled with a set pattern (0xcdcdcdcd). The pattern byte is increased\n" | |
975 | " by one for each request contained in the multiwrite command.\n" | |
976 | " -P, -- use different pattern to fill file\n" | |
977 | " -C, -- report statistics in a machine parsable format\n" | |
978 | " -q, -- quiet mode, do not show I/O statistics\n" | |
979 | "\n"); | |
980 | } | |
981 | ||
982 | static int multiwrite_f(int argc, char **argv); | |
983 | ||
984 | static const cmdinfo_t multiwrite_cmd = { | |
43642b38 DN |
985 | .name = "multiwrite", |
986 | .cfunc = multiwrite_f, | |
987 | .argmin = 2, | |
988 | .argmax = -1, | |
989 | .args = "[-Cq] [-P pattern ] off len [len..] [; off len [len..]..]", | |
990 | .oneline = "issues multiple write requests at once", | |
991 | .help = multiwrite_help, | |
776cbbbd KW |
992 | }; |
993 | ||
43642b38 | 994 | static int multiwrite_f(int argc, char **argv) |
776cbbbd | 995 | { |
43642b38 DN |
996 | struct timeval t1, t2; |
997 | int Cflag = 0, qflag = 0; | |
998 | int c, cnt; | |
999 | char **buf; | |
1000 | int64_t offset, first_offset = 0; | |
1001 | /* Some compilers get confused and warn if this is not initialized. */ | |
1002 | int total = 0; | |
1003 | int nr_iov; | |
1004 | int nr_reqs; | |
1005 | int pattern = 0xcd; | |
1006 | QEMUIOVector *qiovs; | |
1007 | int i; | |
1008 | BlockRequest *reqs; | |
1009 | ||
1010 | while ((c = getopt(argc, argv, "CqP:")) != EOF) { | |
1011 | switch (c) { | |
1012 | case 'C': | |
1013 | Cflag = 1; | |
1014 | break; | |
1015 | case 'q': | |
1016 | qflag = 1; | |
1017 | break; | |
1018 | case 'P': | |
1019 | pattern = parse_pattern(optarg); | |
1020 | if (pattern < 0) { | |
1021 | return 0; | |
1022 | } | |
1023 | break; | |
1024 | default: | |
1025 | return command_usage(&writev_cmd); | |
1026 | } | |
1027 | } | |
1028 | ||
1029 | if (optind > argc - 2) { | |
1030 | return command_usage(&writev_cmd); | |
1031 | } | |
1032 | ||
1033 | nr_reqs = 1; | |
1034 | for (i = optind; i < argc; i++) { | |
1035 | if (!strcmp(argv[i], ";")) { | |
1036 | nr_reqs++; | |
1037 | } | |
1038 | } | |
1039 | ||
f2360620 KW |
1040 | reqs = g_malloc0(nr_reqs * sizeof(*reqs)); |
1041 | buf = g_malloc0(nr_reqs * sizeof(*buf)); | |
7267c094 | 1042 | qiovs = g_malloc(nr_reqs * sizeof(*qiovs)); |
43642b38 | 1043 | |
67403dbb | 1044 | for (i = 0; i < nr_reqs && optind < argc; i++) { |
43642b38 DN |
1045 | int j; |
1046 | ||
1047 | /* Read the offset of the request */ | |
1048 | offset = cvtnum(argv[optind]); | |
1049 | if (offset < 0) { | |
1050 | printf("non-numeric offset argument -- %s\n", argv[optind]); | |
67403dbb | 1051 | goto out; |
43642b38 DN |
1052 | } |
1053 | optind++; | |
1054 | ||
1055 | if (offset & 0x1ff) { | |
1056 | printf("offset %lld is not sector aligned\n", | |
1057 | (long long)offset); | |
67403dbb | 1058 | goto out; |
43642b38 | 1059 | } |
776cbbbd KW |
1060 | |
1061 | if (i == 0) { | |
1062 | first_offset = offset; | |
1063 | } | |
1064 | ||
43642b38 DN |
1065 | /* Read lengths for qiov entries */ |
1066 | for (j = optind; j < argc; j++) { | |
1067 | if (!strcmp(argv[j], ";")) { | |
1068 | break; | |
1069 | } | |
1070 | } | |
776cbbbd | 1071 | |
43642b38 | 1072 | nr_iov = j - optind; |
776cbbbd | 1073 | |
43642b38 | 1074 | /* Build request */ |
f2360620 KW |
1075 | buf[i] = create_iovec(&qiovs[i], &argv[optind], nr_iov, pattern); |
1076 | if (buf[i] == NULL) { | |
1077 | goto out; | |
1078 | } | |
1079 | ||
43642b38 | 1080 | reqs[i].qiov = &qiovs[i]; |
43642b38 DN |
1081 | reqs[i].sector = offset >> 9; |
1082 | reqs[i].nb_sectors = reqs[i].qiov->size >> 9; | |
776cbbbd | 1083 | |
43642b38 | 1084 | optind = j + 1; |
776cbbbd | 1085 | |
43642b38 DN |
1086 | pattern++; |
1087 | } | |
776cbbbd | 1088 | |
67403dbb KW |
1089 | /* If there were empty requests at the end, ignore them */ |
1090 | nr_reqs = i; | |
1091 | ||
43642b38 DN |
1092 | gettimeofday(&t1, NULL); |
1093 | cnt = do_aio_multiwrite(reqs, nr_reqs, &total); | |
1094 | gettimeofday(&t2, NULL); | |
776cbbbd | 1095 | |
43642b38 DN |
1096 | if (cnt < 0) { |
1097 | printf("aio_multiwrite failed: %s\n", strerror(-cnt)); | |
1098 | goto out; | |
1099 | } | |
776cbbbd | 1100 | |
43642b38 DN |
1101 | if (qflag) { |
1102 | goto out; | |
1103 | } | |
776cbbbd | 1104 | |
43642b38 DN |
1105 | /* Finally, report back -- -C gives a parsable format */ |
1106 | t2 = tsub(t2, t1); | |
1107 | print_report("wrote", &t2, first_offset, total, total, cnt, Cflag); | |
776cbbbd | 1108 | out: |
43642b38 DN |
1109 | for (i = 0; i < nr_reqs; i++) { |
1110 | qemu_io_free(buf[i]); | |
f2360620 KW |
1111 | if (reqs[i].qiov != NULL) { |
1112 | qemu_iovec_destroy(&qiovs[i]); | |
1113 | } | |
43642b38 | 1114 | } |
7267c094 AL |
1115 | g_free(buf); |
1116 | g_free(reqs); | |
1117 | g_free(qiovs); | |
43642b38 | 1118 | return 0; |
776cbbbd KW |
1119 | } |
1120 | ||
95533d5f | 1121 | struct aio_ctx { |
43642b38 DN |
1122 | QEMUIOVector qiov; |
1123 | int64_t offset; | |
1124 | char *buf; | |
1125 | int qflag; | |
1126 | int vflag; | |
1127 | int Cflag; | |
1128 | int Pflag; | |
1129 | int pattern; | |
1130 | struct timeval t1; | |
95533d5f CH |
1131 | }; |
1132 | ||
43642b38 | 1133 | static void aio_write_done(void *opaque, int ret) |
95533d5f | 1134 | { |
43642b38 DN |
1135 | struct aio_ctx *ctx = opaque; |
1136 | struct timeval t2; | |
95533d5f | 1137 | |
43642b38 | 1138 | gettimeofday(&t2, NULL); |
95533d5f | 1139 | |
95533d5f | 1140 | |
43642b38 DN |
1141 | if (ret < 0) { |
1142 | printf("aio_write failed: %s\n", strerror(-ret)); | |
1143 | goto out; | |
1144 | } | |
95533d5f | 1145 | |
43642b38 DN |
1146 | if (ctx->qflag) { |
1147 | goto out; | |
1148 | } | |
95533d5f | 1149 | |
43642b38 DN |
1150 | /* Finally, report back -- -C gives a parsable format */ |
1151 | t2 = tsub(t2, ctx->t1); | |
1152 | print_report("wrote", &t2, ctx->offset, ctx->qiov.size, | |
1153 | ctx->qiov.size, 1, ctx->Cflag); | |
7d8abfcb | 1154 | out: |
43642b38 | 1155 | qemu_io_free(ctx->buf); |
9e559533 | 1156 | qemu_iovec_destroy(&ctx->qiov); |
031380d8 | 1157 | g_free(ctx); |
95533d5f CH |
1158 | } |
1159 | ||
43642b38 | 1160 | static void aio_read_done(void *opaque, int ret) |
95533d5f | 1161 | { |
43642b38 DN |
1162 | struct aio_ctx *ctx = opaque; |
1163 | struct timeval t2; | |
1164 | ||
1165 | gettimeofday(&t2, NULL); | |
1166 | ||
1167 | if (ret < 0) { | |
1168 | printf("readv failed: %s\n", strerror(-ret)); | |
1169 | goto out; | |
1170 | } | |
1171 | ||
1172 | if (ctx->Pflag) { | |
031380d8 | 1173 | void *cmp_buf = g_malloc(ctx->qiov.size); |
43642b38 DN |
1174 | |
1175 | memset(cmp_buf, ctx->pattern, ctx->qiov.size); | |
1176 | if (memcmp(ctx->buf, cmp_buf, ctx->qiov.size)) { | |
1177 | printf("Pattern verification failed at offset %" | |
1178 | PRId64 ", %zd bytes\n", ctx->offset, ctx->qiov.size); | |
1179 | } | |
031380d8 | 1180 | g_free(cmp_buf); |
43642b38 DN |
1181 | } |
1182 | ||
1183 | if (ctx->qflag) { | |
1184 | goto out; | |
1185 | } | |
1186 | ||
1187 | if (ctx->vflag) { | |
1188 | dump_buffer(ctx->buf, ctx->offset, ctx->qiov.size); | |
1189 | } | |
1190 | ||
1191 | /* Finally, report back -- -C gives a parsable format */ | |
1192 | t2 = tsub(t2, ctx->t1); | |
1193 | print_report("read", &t2, ctx->offset, ctx->qiov.size, | |
1194 | ctx->qiov.size, 1, ctx->Cflag); | |
7d8abfcb | 1195 | out: |
43642b38 | 1196 | qemu_io_free(ctx->buf); |
9e559533 | 1197 | qemu_iovec_destroy(&ctx->qiov); |
031380d8 | 1198 | g_free(ctx); |
95533d5f CH |
1199 | } |
1200 | ||
43642b38 | 1201 | static void aio_read_help(void) |
95533d5f | 1202 | { |
43642b38 | 1203 | printf( |
95533d5f CH |
1204 | "\n" |
1205 | " asynchronously reads a range of bytes from the given offset\n" | |
1206 | "\n" | |
1207 | " Example:\n" | |
1208 | " 'aio_read -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" | |
1209 | "\n" | |
1210 | " Reads a segment of the currently open file, optionally dumping it to the\n" | |
1211 | " standard output stream (with -v option) for subsequent inspection.\n" | |
e432cef9 | 1212 | " The read is performed asynchronously and the aio_flush command must be\n" |
96bab41d | 1213 | " used to ensure all outstanding aio requests have been completed.\n" |
95533d5f CH |
1214 | " -C, -- report statistics in a machine parsable format\n" |
1215 | " -P, -- use a pattern to verify read data\n" | |
1216 | " -v, -- dump buffer to standard output\n" | |
095343ad | 1217 | " -q, -- quiet mode, do not show I/O statistics\n" |
95533d5f CH |
1218 | "\n"); |
1219 | } | |
1220 | ||
22a2bdcb BS |
1221 | static int aio_read_f(int argc, char **argv); |
1222 | ||
1223 | static const cmdinfo_t aio_read_cmd = { | |
43642b38 DN |
1224 | .name = "aio_read", |
1225 | .cfunc = aio_read_f, | |
1226 | .argmin = 2, | |
1227 | .argmax = -1, | |
1228 | .args = "[-Cqv] [-P pattern ] off len [len..]", | |
1229 | .oneline = "asynchronously reads a number of bytes", | |
1230 | .help = aio_read_help, | |
22a2bdcb BS |
1231 | }; |
1232 | ||
43642b38 | 1233 | static int aio_read_f(int argc, char **argv) |
95533d5f | 1234 | { |
43642b38 | 1235 | int nr_iov, c; |
031380d8 | 1236 | struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); |
43642b38 DN |
1237 | |
1238 | while ((c = getopt(argc, argv, "CP:qv")) != EOF) { | |
1239 | switch (c) { | |
1240 | case 'C': | |
1241 | ctx->Cflag = 1; | |
1242 | break; | |
1243 | case 'P': | |
1244 | ctx->Pflag = 1; | |
1245 | ctx->pattern = parse_pattern(optarg); | |
1246 | if (ctx->pattern < 0) { | |
031380d8 | 1247 | g_free(ctx); |
43642b38 DN |
1248 | return 0; |
1249 | } | |
1250 | break; | |
1251 | case 'q': | |
1252 | ctx->qflag = 1; | |
1253 | break; | |
1254 | case 'v': | |
1255 | ctx->vflag = 1; | |
1256 | break; | |
1257 | default: | |
031380d8 | 1258 | g_free(ctx); |
43642b38 DN |
1259 | return command_usage(&aio_read_cmd); |
1260 | } | |
1261 | } | |
1262 | ||
1263 | if (optind > argc - 2) { | |
031380d8 | 1264 | g_free(ctx); |
43642b38 DN |
1265 | return command_usage(&aio_read_cmd); |
1266 | } | |
1267 | ||
1268 | ctx->offset = cvtnum(argv[optind]); | |
1269 | if (ctx->offset < 0) { | |
1270 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
031380d8 | 1271 | g_free(ctx); |
43642b38 DN |
1272 | return 0; |
1273 | } | |
1274 | optind++; | |
1275 | ||
1276 | if (ctx->offset & 0x1ff) { | |
1277 | printf("offset %" PRId64 " is not sector aligned\n", | |
1278 | ctx->offset); | |
031380d8 | 1279 | g_free(ctx); |
43642b38 DN |
1280 | return 0; |
1281 | } | |
1282 | ||
1283 | nr_iov = argc - optind; | |
1284 | ctx->buf = create_iovec(&ctx->qiov, &argv[optind], nr_iov, 0xab); | |
f2360620 | 1285 | if (ctx->buf == NULL) { |
031380d8 | 1286 | g_free(ctx); |
f2360620 KW |
1287 | return 0; |
1288 | } | |
43642b38 DN |
1289 | |
1290 | gettimeofday(&ctx->t1, NULL); | |
ad54ae80 PB |
1291 | bdrv_aio_readv(bs, ctx->offset >> 9, &ctx->qiov, |
1292 | ctx->qiov.size >> 9, aio_read_done, ctx); | |
43642b38 | 1293 | return 0; |
95533d5f CH |
1294 | } |
1295 | ||
43642b38 | 1296 | static void aio_write_help(void) |
95533d5f | 1297 | { |
43642b38 | 1298 | printf( |
95533d5f | 1299 | "\n" |
43642b38 | 1300 | " asynchronously writes a range of bytes from the given offset source\n" |
95533d5f CH |
1301 | " from multiple buffers\n" |
1302 | "\n" | |
1303 | " Example:\n" | |
1304 | " 'aio_write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" | |
1305 | "\n" | |
1306 | " Writes into a segment of the currently open file, using a buffer\n" | |
1307 | " filled with a set pattern (0xcdcdcdcd).\n" | |
e432cef9 | 1308 | " The write is performed asynchronously and the aio_flush command must be\n" |
96bab41d | 1309 | " used to ensure all outstanding aio requests have been completed.\n" |
95533d5f CH |
1310 | " -P, -- use different pattern to fill file\n" |
1311 | " -C, -- report statistics in a machine parsable format\n" | |
095343ad | 1312 | " -q, -- quiet mode, do not show I/O statistics\n" |
95533d5f CH |
1313 | "\n"); |
1314 | } | |
1315 | ||
22a2bdcb BS |
1316 | static int aio_write_f(int argc, char **argv); |
1317 | ||
1318 | static const cmdinfo_t aio_write_cmd = { | |
43642b38 DN |
1319 | .name = "aio_write", |
1320 | .cfunc = aio_write_f, | |
1321 | .argmin = 2, | |
1322 | .argmax = -1, | |
1323 | .args = "[-Cq] [-P pattern ] off len [len..]", | |
1324 | .oneline = "asynchronously writes a number of bytes", | |
1325 | .help = aio_write_help, | |
22a2bdcb | 1326 | }; |
95533d5f | 1327 | |
43642b38 | 1328 | static int aio_write_f(int argc, char **argv) |
95533d5f | 1329 | { |
43642b38 DN |
1330 | int nr_iov, c; |
1331 | int pattern = 0xcd; | |
031380d8 | 1332 | struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); |
43642b38 DN |
1333 | |
1334 | while ((c = getopt(argc, argv, "CqP:")) != EOF) { | |
1335 | switch (c) { | |
1336 | case 'C': | |
1337 | ctx->Cflag = 1; | |
1338 | break; | |
1339 | case 'q': | |
1340 | ctx->qflag = 1; | |
1341 | break; | |
1342 | case 'P': | |
1343 | pattern = parse_pattern(optarg); | |
1344 | if (pattern < 0) { | |
031380d8 | 1345 | g_free(ctx); |
43642b38 DN |
1346 | return 0; |
1347 | } | |
1348 | break; | |
1349 | default: | |
031380d8 | 1350 | g_free(ctx); |
43642b38 DN |
1351 | return command_usage(&aio_write_cmd); |
1352 | } | |
1353 | } | |
1354 | ||
1355 | if (optind > argc - 2) { | |
031380d8 | 1356 | g_free(ctx); |
43642b38 DN |
1357 | return command_usage(&aio_write_cmd); |
1358 | } | |
1359 | ||
1360 | ctx->offset = cvtnum(argv[optind]); | |
1361 | if (ctx->offset < 0) { | |
1362 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
031380d8 | 1363 | g_free(ctx); |
43642b38 DN |
1364 | return 0; |
1365 | } | |
1366 | optind++; | |
1367 | ||
1368 | if (ctx->offset & 0x1ff) { | |
1369 | printf("offset %" PRId64 " is not sector aligned\n", | |
1370 | ctx->offset); | |
031380d8 | 1371 | g_free(ctx); |
43642b38 DN |
1372 | return 0; |
1373 | } | |
1374 | ||
1375 | nr_iov = argc - optind; | |
1376 | ctx->buf = create_iovec(&ctx->qiov, &argv[optind], nr_iov, pattern); | |
f2360620 | 1377 | if (ctx->buf == NULL) { |
031380d8 | 1378 | g_free(ctx); |
f2360620 KW |
1379 | return 0; |
1380 | } | |
43642b38 DN |
1381 | |
1382 | gettimeofday(&ctx->t1, NULL); | |
ad54ae80 PB |
1383 | bdrv_aio_writev(bs, ctx->offset >> 9, &ctx->qiov, |
1384 | ctx->qiov.size >> 9, aio_write_done, ctx); | |
43642b38 | 1385 | return 0; |
95533d5f CH |
1386 | } |
1387 | ||
43642b38 | 1388 | static int aio_flush_f(int argc, char **argv) |
95533d5f | 1389 | { |
e7c8b094 | 1390 | bdrv_drain_all(); |
43642b38 | 1391 | return 0; |
95533d5f CH |
1392 | } |
1393 | ||
1394 | static const cmdinfo_t aio_flush_cmd = { | |
43642b38 DN |
1395 | .name = "aio_flush", |
1396 | .cfunc = aio_flush_f, | |
1397 | .oneline = "completes all outstanding aio requests" | |
95533d5f CH |
1398 | }; |
1399 | ||
43642b38 | 1400 | static int flush_f(int argc, char **argv) |
e3aff4f6 | 1401 | { |
43642b38 DN |
1402 | bdrv_flush(bs); |
1403 | return 0; | |
e3aff4f6 AL |
1404 | } |
1405 | ||
1406 | static const cmdinfo_t flush_cmd = { | |
43642b38 DN |
1407 | .name = "flush", |
1408 | .altname = "f", | |
1409 | .cfunc = flush_f, | |
1410 | .oneline = "flush all in-core file state to disk", | |
e3aff4f6 AL |
1411 | }; |
1412 | ||
43642b38 | 1413 | static int truncate_f(int argc, char **argv) |
e3aff4f6 | 1414 | { |
43642b38 DN |
1415 | int64_t offset; |
1416 | int ret; | |
1417 | ||
1418 | offset = cvtnum(argv[1]); | |
1419 | if (offset < 0) { | |
1420 | printf("non-numeric truncate argument -- %s\n", argv[1]); | |
1421 | return 0; | |
1422 | } | |
1423 | ||
1424 | ret = bdrv_truncate(bs, offset); | |
1425 | if (ret < 0) { | |
1426 | printf("truncate: %s\n", strerror(-ret)); | |
1427 | return 0; | |
1428 | } | |
1429 | ||
1430 | return 0; | |
e3aff4f6 AL |
1431 | } |
1432 | ||
1433 | static const cmdinfo_t truncate_cmd = { | |
43642b38 DN |
1434 | .name = "truncate", |
1435 | .altname = "t", | |
1436 | .cfunc = truncate_f, | |
1437 | .argmin = 1, | |
1438 | .argmax = 1, | |
1439 | .args = "off", | |
1440 | .oneline = "truncates the current file at the given offset", | |
e3aff4f6 AL |
1441 | }; |
1442 | ||
43642b38 | 1443 | static int length_f(int argc, char **argv) |
e3aff4f6 | 1444 | { |
43642b38 DN |
1445 | int64_t size; |
1446 | char s1[64]; | |
1447 | ||
1448 | size = bdrv_getlength(bs); | |
1449 | if (size < 0) { | |
1450 | printf("getlength: %s\n", strerror(-size)); | |
1451 | return 0; | |
1452 | } | |
1453 | ||
1454 | cvtstr(size, s1, sizeof(s1)); | |
1455 | printf("%s\n", s1); | |
1456 | return 0; | |
e3aff4f6 AL |
1457 | } |
1458 | ||
1459 | ||
1460 | static const cmdinfo_t length_cmd = { | |
43642b38 DN |
1461 | .name = "length", |
1462 | .altname = "l", | |
1463 | .cfunc = length_f, | |
1464 | .oneline = "gets the length of the current file", | |
e3aff4f6 AL |
1465 | }; |
1466 | ||
1467 | ||
43642b38 | 1468 | static int info_f(int argc, char **argv) |
e3aff4f6 | 1469 | { |
43642b38 DN |
1470 | BlockDriverInfo bdi; |
1471 | char s1[64], s2[64]; | |
1472 | int ret; | |
e3aff4f6 | 1473 | |
43642b38 DN |
1474 | if (bs->drv && bs->drv->format_name) { |
1475 | printf("format name: %s\n", bs->drv->format_name); | |
1476 | } | |
1477 | if (bs->drv && bs->drv->protocol_name) { | |
1478 | printf("format name: %s\n", bs->drv->protocol_name); | |
1479 | } | |
e3aff4f6 | 1480 | |
43642b38 DN |
1481 | ret = bdrv_get_info(bs, &bdi); |
1482 | if (ret) { | |
1483 | return 0; | |
1484 | } | |
e3aff4f6 | 1485 | |
43642b38 DN |
1486 | cvtstr(bdi.cluster_size, s1, sizeof(s1)); |
1487 | cvtstr(bdi.vm_state_offset, s2, sizeof(s2)); | |
e3aff4f6 | 1488 | |
43642b38 DN |
1489 | printf("cluster size: %s\n", s1); |
1490 | printf("vm state offset: %s\n", s2); | |
e3aff4f6 | 1491 | |
43642b38 | 1492 | return 0; |
e3aff4f6 AL |
1493 | } |
1494 | ||
1495 | ||
1496 | ||
1497 | static const cmdinfo_t info_cmd = { | |
43642b38 DN |
1498 | .name = "info", |
1499 | .altname = "i", | |
1500 | .cfunc = info_f, | |
1501 | .oneline = "prints information about the current file", | |
e3aff4f6 AL |
1502 | }; |
1503 | ||
43642b38 | 1504 | static void discard_help(void) |
edff5db1 | 1505 | { |
43642b38 | 1506 | printf( |
edff5db1 SH |
1507 | "\n" |
1508 | " discards a range of bytes from the given offset\n" | |
1509 | "\n" | |
1510 | " Example:\n" | |
1511 | " 'discard 512 1k' - discards 1 kilobyte from 512 bytes into the file\n" | |
1512 | "\n" | |
1513 | " Discards a segment of the currently open file.\n" | |
1514 | " -C, -- report statistics in a machine parsable format\n" | |
095343ad | 1515 | " -q, -- quiet mode, do not show I/O statistics\n" |
edff5db1 SH |
1516 | "\n"); |
1517 | } | |
1518 | ||
1519 | static int discard_f(int argc, char **argv); | |
1520 | ||
1521 | static const cmdinfo_t discard_cmd = { | |
43642b38 DN |
1522 | .name = "discard", |
1523 | .altname = "d", | |
1524 | .cfunc = discard_f, | |
1525 | .argmin = 2, | |
1526 | .argmax = -1, | |
1527 | .args = "[-Cq] off len", | |
1528 | .oneline = "discards a number of bytes at a specified offset", | |
1529 | .help = discard_help, | |
edff5db1 SH |
1530 | }; |
1531 | ||
43642b38 | 1532 | static int discard_f(int argc, char **argv) |
edff5db1 | 1533 | { |
43642b38 DN |
1534 | struct timeval t1, t2; |
1535 | int Cflag = 0, qflag = 0; | |
1536 | int c, ret; | |
1537 | int64_t offset; | |
1538 | int count; | |
1539 | ||
1540 | while ((c = getopt(argc, argv, "Cq")) != EOF) { | |
1541 | switch (c) { | |
1542 | case 'C': | |
1543 | Cflag = 1; | |
1544 | break; | |
1545 | case 'q': | |
1546 | qflag = 1; | |
1547 | break; | |
1548 | default: | |
1549 | return command_usage(&discard_cmd); | |
1550 | } | |
1551 | } | |
1552 | ||
1553 | if (optind != argc - 2) { | |
1554 | return command_usage(&discard_cmd); | |
1555 | } | |
1556 | ||
1557 | offset = cvtnum(argv[optind]); | |
1558 | if (offset < 0) { | |
1559 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
1560 | return 0; | |
1561 | } | |
1562 | ||
1563 | optind++; | |
1564 | count = cvtnum(argv[optind]); | |
1565 | if (count < 0) { | |
1566 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
1567 | return 0; | |
1568 | } | |
1569 | ||
1570 | gettimeofday(&t1, NULL); | |
1571 | ret = bdrv_discard(bs, offset >> BDRV_SECTOR_BITS, | |
1572 | count >> BDRV_SECTOR_BITS); | |
1573 | gettimeofday(&t2, NULL); | |
1574 | ||
1575 | if (ret < 0) { | |
1576 | printf("discard failed: %s\n", strerror(-ret)); | |
1577 | goto out; | |
1578 | } | |
1579 | ||
1580 | /* Finally, report back -- -C gives a parsable format */ | |
1581 | if (!qflag) { | |
1582 | t2 = tsub(t2, t1); | |
1583 | print_report("discard", &t2, offset, count, count, 1, Cflag); | |
1584 | } | |
edff5db1 SH |
1585 | |
1586 | out: | |
43642b38 | 1587 | return 0; |
edff5db1 SH |
1588 | } |
1589 | ||
43642b38 | 1590 | static int alloc_f(int argc, char **argv) |
e3aff4f6 | 1591 | { |
cc785c34 | 1592 | int64_t offset, sector_num; |
43642b38 DN |
1593 | int nb_sectors, remaining; |
1594 | char s1[64]; | |
1595 | int num, sum_alloc; | |
1596 | int ret; | |
1597 | ||
1598 | offset = cvtnum(argv[1]); | |
cf49a6a0 KW |
1599 | if (offset < 0) { |
1600 | printf("non-numeric offset argument -- %s\n", argv[1]); | |
1601 | return 0; | |
1602 | } else if (offset & 0x1ff) { | |
43642b38 DN |
1603 | printf("offset %" PRId64 " is not sector aligned\n", |
1604 | offset); | |
1605 | return 0; | |
1606 | } | |
1607 | ||
1608 | if (argc == 3) { | |
1609 | nb_sectors = cvtnum(argv[2]); | |
cf49a6a0 KW |
1610 | if (nb_sectors < 0) { |
1611 | printf("non-numeric length argument -- %s\n", argv[2]); | |
1612 | return 0; | |
1613 | } | |
43642b38 DN |
1614 | } else { |
1615 | nb_sectors = 1; | |
1616 | } | |
1617 | ||
1618 | remaining = nb_sectors; | |
1619 | sum_alloc = 0; | |
cc785c34 | 1620 | sector_num = offset >> 9; |
43642b38 | 1621 | while (remaining) { |
cc785c34 PB |
1622 | ret = bdrv_is_allocated(bs, sector_num, remaining, &num); |
1623 | sector_num += num; | |
43642b38 DN |
1624 | remaining -= num; |
1625 | if (ret) { | |
1626 | sum_alloc += num; | |
1627 | } | |
cc785c34 PB |
1628 | if (num == 0) { |
1629 | nb_sectors -= remaining; | |
1630 | remaining = 0; | |
1631 | } | |
43642b38 DN |
1632 | } |
1633 | ||
1634 | cvtstr(offset, s1, sizeof(s1)); | |
1635 | ||
1636 | printf("%d/%d sectors allocated at offset %s\n", | |
1637 | sum_alloc, nb_sectors, s1); | |
1638 | return 0; | |
e3aff4f6 AL |
1639 | } |
1640 | ||
1641 | static const cmdinfo_t alloc_cmd = { | |
43642b38 DN |
1642 | .name = "alloc", |
1643 | .altname = "a", | |
1644 | .argmin = 1, | |
1645 | .argmax = 2, | |
1646 | .cfunc = alloc_f, | |
1647 | .args = "off [sectors]", | |
1648 | .oneline = "checks if a sector is present in the file", | |
e3aff4f6 AL |
1649 | }; |
1650 | ||
a00e81e9 KW |
1651 | |
1652 | static int map_is_allocated(int64_t sector_num, int64_t nb_sectors, int64_t *pnum) | |
1653 | { | |
1654 | int num, num_checked; | |
1655 | int ret, firstret; | |
1656 | ||
1657 | num_checked = MIN(nb_sectors, INT_MAX); | |
1658 | ret = bdrv_is_allocated(bs, sector_num, num_checked, &num); | |
1659 | if (ret < 0) { | |
1660 | return ret; | |
1661 | } | |
1662 | ||
1663 | firstret = ret; | |
1664 | *pnum = num; | |
1665 | ||
1666 | while (nb_sectors > 0 && ret == firstret) { | |
1667 | sector_num += num; | |
1668 | nb_sectors -= num; | |
1669 | ||
1670 | num_checked = MIN(nb_sectors, INT_MAX); | |
1671 | ret = bdrv_is_allocated(bs, sector_num, num_checked, &num); | |
1672 | if (ret == firstret) { | |
1673 | *pnum += num; | |
1674 | } else { | |
1675 | break; | |
1676 | } | |
1677 | } | |
1678 | ||
1679 | return firstret; | |
1680 | } | |
1681 | ||
43642b38 | 1682 | static int map_f(int argc, char **argv) |
191c2890 | 1683 | { |
43642b38 DN |
1684 | int64_t offset; |
1685 | int64_t nb_sectors; | |
1686 | char s1[64]; | |
a00e81e9 | 1687 | int64_t num; |
43642b38 DN |
1688 | int ret; |
1689 | const char *retstr; | |
1690 | ||
1691 | offset = 0; | |
1692 | nb_sectors = bs->total_sectors; | |
1693 | ||
1694 | do { | |
a00e81e9 KW |
1695 | ret = map_is_allocated(offset, nb_sectors, &num); |
1696 | if (ret < 0) { | |
1697 | error_report("Failed to get allocation status: %s", strerror(-ret)); | |
1698 | return 0; | |
1699 | } | |
1700 | ||
43642b38 DN |
1701 | retstr = ret ? " allocated" : "not allocated"; |
1702 | cvtstr(offset << 9ULL, s1, sizeof(s1)); | |
a00e81e9 KW |
1703 | printf("[% 24" PRId64 "] % 8" PRId64 "/% 8" PRId64 " sectors %s " |
1704 | "at offset %s (%d)\n", | |
1705 | offset << 9ULL, num, nb_sectors, retstr, s1, ret); | |
43642b38 DN |
1706 | |
1707 | offset += num; | |
1708 | nb_sectors -= num; | |
1709 | } while (offset < bs->total_sectors); | |
1710 | ||
1711 | return 0; | |
191c2890 KW |
1712 | } |
1713 | ||
1714 | static const cmdinfo_t map_cmd = { | |
1715 | .name = "map", | |
1716 | .argmin = 0, | |
1717 | .argmax = 0, | |
1718 | .cfunc = map_f, | |
1719 | .args = "", | |
1720 | .oneline = "prints the allocated areas of a file", | |
1721 | }; | |
1722 | ||
41c695c7 KW |
1723 | static int break_f(int argc, char **argv) |
1724 | { | |
1725 | int ret; | |
1726 | ||
1727 | ret = bdrv_debug_breakpoint(bs, argv[1], argv[2]); | |
1728 | if (ret < 0) { | |
1729 | printf("Could not set breakpoint: %s\n", strerror(-ret)); | |
1730 | } | |
1731 | ||
1732 | return 0; | |
1733 | } | |
1734 | ||
1735 | static const cmdinfo_t break_cmd = { | |
1736 | .name = "break", | |
1737 | .argmin = 2, | |
1738 | .argmax = 2, | |
1739 | .cfunc = break_f, | |
1740 | .args = "event tag", | |
1741 | .oneline = "sets a breakpoint on event and tags the stopped " | |
1742 | "request as tag", | |
1743 | }; | |
1744 | ||
1745 | static int resume_f(int argc, char **argv) | |
1746 | { | |
1747 | int ret; | |
1748 | ||
1749 | ret = bdrv_debug_resume(bs, argv[1]); | |
1750 | if (ret < 0) { | |
1751 | printf("Could not resume request: %s\n", strerror(-ret)); | |
1752 | } | |
1753 | ||
1754 | return 0; | |
1755 | } | |
1756 | ||
1757 | static const cmdinfo_t resume_cmd = { | |
1758 | .name = "resume", | |
1759 | .argmin = 1, | |
1760 | .argmax = 1, | |
1761 | .cfunc = resume_f, | |
1762 | .args = "tag", | |
1763 | .oneline = "resumes the request tagged as tag", | |
1764 | }; | |
1765 | ||
1766 | static int wait_break_f(int argc, char **argv) | |
1767 | { | |
1768 | while (!bdrv_debug_is_suspended(bs, argv[1])) { | |
1769 | qemu_aio_wait(); | |
1770 | } | |
1771 | ||
1772 | return 0; | |
1773 | } | |
1774 | ||
1775 | static const cmdinfo_t wait_break_cmd = { | |
1776 | .name = "wait_break", | |
1777 | .argmin = 1, | |
1778 | .argmax = 1, | |
1779 | .cfunc = wait_break_f, | |
1780 | .args = "tag", | |
1781 | .oneline = "waits for the suspension of a request", | |
1782 | }; | |
1783 | ||
e01c30d3 SH |
1784 | static int abort_f(int argc, char **argv) |
1785 | { | |
1786 | abort(); | |
1787 | } | |
1788 | ||
1789 | static const cmdinfo_t abort_cmd = { | |
1790 | .name = "abort", | |
1791 | .cfunc = abort_f, | |
1792 | .flags = CMD_NOFILE_OK, | |
1793 | .oneline = "simulate a program crash using abort(3)", | |
1794 | }; | |
191c2890 | 1795 | |
43642b38 | 1796 | static int close_f(int argc, char **argv) |
e3aff4f6 | 1797 | { |
b4657855 | 1798 | bdrv_delete(bs); |
43642b38 DN |
1799 | bs = NULL; |
1800 | return 0; | |
e3aff4f6 AL |
1801 | } |
1802 | ||
1803 | static const cmdinfo_t close_cmd = { | |
43642b38 DN |
1804 | .name = "close", |
1805 | .altname = "c", | |
1806 | .cfunc = close_f, | |
1807 | .oneline = "close the current open file", | |
e3aff4f6 AL |
1808 | }; |
1809 | ||
9c4bab26 | 1810 | static int openfile(char *name, int flags, int growable) |
e3aff4f6 | 1811 | { |
43642b38 DN |
1812 | if (bs) { |
1813 | fprintf(stderr, "file open already, try 'help close'\n"); | |
1814 | return 1; | |
1815 | } | |
1816 | ||
1817 | if (growable) { | |
787e4a85 | 1818 | if (bdrv_file_open(&bs, name, NULL, flags)) { |
43642b38 DN |
1819 | fprintf(stderr, "%s: can't open device %s\n", progname, name); |
1820 | return 1; | |
1821 | } | |
1822 | } else { | |
1823 | bs = bdrv_new("hda"); | |
1824 | ||
de9c0cec | 1825 | if (bdrv_open(bs, name, NULL, flags, NULL) < 0) { |
43642b38 | 1826 | fprintf(stderr, "%s: can't open device %s\n", progname, name); |
b4657855 | 1827 | bdrv_delete(bs); |
43642b38 DN |
1828 | bs = NULL; |
1829 | return 1; | |
1830 | } | |
1831 | } | |
1832 | ||
1833 | return 0; | |
e3aff4f6 AL |
1834 | } |
1835 | ||
43642b38 | 1836 | static void open_help(void) |
e3aff4f6 | 1837 | { |
43642b38 | 1838 | printf( |
e3aff4f6 AL |
1839 | "\n" |
1840 | " opens a new file in the requested mode\n" | |
1841 | "\n" | |
1842 | " Example:\n" | |
1843 | " 'open -Cn /tmp/data' - creates/opens data file read-write and uncached\n" | |
1844 | "\n" | |
1845 | " Opens a file for subsequent use by all of the other qemu-io commands.\n" | |
e3aff4f6 AL |
1846 | " -r, -- open file read-only\n" |
1847 | " -s, -- use snapshot file\n" | |
1848 | " -n, -- disable host cache\n" | |
9c4bab26 | 1849 | " -g, -- allow file to grow (only applies to protocols)" |
e3aff4f6 AL |
1850 | "\n"); |
1851 | } | |
1852 | ||
22a2bdcb BS |
1853 | static int open_f(int argc, char **argv); |
1854 | ||
1855 | static const cmdinfo_t open_cmd = { | |
43642b38 DN |
1856 | .name = "open", |
1857 | .altname = "o", | |
1858 | .cfunc = open_f, | |
1859 | .argmin = 1, | |
1860 | .argmax = -1, | |
1861 | .flags = CMD_NOFILE_OK, | |
1862 | .args = "[-Crsn] [path]", | |
1863 | .oneline = "open the file specified by path", | |
1864 | .help = open_help, | |
22a2bdcb | 1865 | }; |
e3aff4f6 | 1866 | |
43642b38 | 1867 | static int open_f(int argc, char **argv) |
e3aff4f6 | 1868 | { |
43642b38 DN |
1869 | int flags = 0; |
1870 | int readonly = 0; | |
1871 | int growable = 0; | |
1872 | int c; | |
1873 | ||
1874 | while ((c = getopt(argc, argv, "snrg")) != EOF) { | |
1875 | switch (c) { | |
1876 | case 's': | |
1877 | flags |= BDRV_O_SNAPSHOT; | |
1878 | break; | |
1879 | case 'n': | |
1880 | flags |= BDRV_O_NOCACHE | BDRV_O_CACHE_WB; | |
1881 | break; | |
1882 | case 'r': | |
1883 | readonly = 1; | |
1884 | break; | |
1885 | case 'g': | |
1886 | growable = 1; | |
1887 | break; | |
1888 | default: | |
1889 | return command_usage(&open_cmd); | |
f5edb014 | 1890 | } |
43642b38 DN |
1891 | } |
1892 | ||
1893 | if (!readonly) { | |
1894 | flags |= BDRV_O_RDWR; | |
1895 | } | |
e3aff4f6 | 1896 | |
43642b38 DN |
1897 | if (optind != argc - 1) { |
1898 | return command_usage(&open_cmd); | |
1899 | } | |
e3aff4f6 | 1900 | |
43642b38 | 1901 | return openfile(argv[optind], flags, growable); |
e3aff4f6 AL |
1902 | } |
1903 | ||
43642b38 | 1904 | static int init_check_command(const cmdinfo_t *ct) |
e3aff4f6 | 1905 | { |
43642b38 DN |
1906 | if (ct->flags & CMD_FLAG_GLOBAL) { |
1907 | return 1; | |
1908 | } | |
1909 | if (!(ct->flags & CMD_NOFILE_OK) && !bs) { | |
1910 | fprintf(stderr, "no file open, try 'help open'\n"); | |
1911 | return 0; | |
1912 | } | |
1913 | return 1; | |
e3aff4f6 AL |
1914 | } |
1915 | ||
1916 | static void usage(const char *name) | |
1917 | { | |
43642b38 | 1918 | printf( |
9a2d77ad | 1919 | "Usage: %s [-h] [-V] [-rsnm] [-c cmd] ... [file]\n" |
84844a20 | 1920 | "QEMU Disk exerciser\n" |
e3aff4f6 | 1921 | "\n" |
e3aff4f6 AL |
1922 | " -c, --cmd command to execute\n" |
1923 | " -r, --read-only export read-only\n" | |
1924 | " -s, --snapshot use snapshot file\n" | |
1925 | " -n, --nocache disable host cache\n" | |
1db6947d | 1926 | " -g, --growable allow file to grow (only applies to protocols)\n" |
e3aff4f6 | 1927 | " -m, --misalign misalign allocations for O_DIRECT\n" |
5c6c3a6c | 1928 | " -k, --native-aio use kernel AIO implementation (on Linux only)\n" |
592fa070 | 1929 | " -t, --cache=MODE use the given cache mode for the image\n" |
d7bb72c8 | 1930 | " -T, --trace FILE enable trace events listed in the given file\n" |
e3aff4f6 AL |
1931 | " -h, --help display this help and exit\n" |
1932 | " -V, --version output version information and exit\n" | |
1933 | "\n", | |
43642b38 | 1934 | name); |
e3aff4f6 AL |
1935 | } |
1936 | ||
1937 | ||
1938 | int main(int argc, char **argv) | |
1939 | { | |
43642b38 DN |
1940 | int readonly = 0; |
1941 | int growable = 0; | |
9e8f1835 | 1942 | const char *sopt = "hVc:d:rsnmgkt:T:"; |
43642b38 DN |
1943 | const struct option lopt[] = { |
1944 | { "help", 0, NULL, 'h' }, | |
1945 | { "version", 0, NULL, 'V' }, | |
1946 | { "offset", 1, NULL, 'o' }, | |
1947 | { "cmd", 1, NULL, 'c' }, | |
1948 | { "read-only", 0, NULL, 'r' }, | |
1949 | { "snapshot", 0, NULL, 's' }, | |
1950 | { "nocache", 0, NULL, 'n' }, | |
1951 | { "misalign", 0, NULL, 'm' }, | |
1952 | { "growable", 0, NULL, 'g' }, | |
1953 | { "native-aio", 0, NULL, 'k' }, | |
9e8f1835 | 1954 | { "discard", 1, NULL, 'd' }, |
592fa070 | 1955 | { "cache", 1, NULL, 't' }, |
d7bb72c8 | 1956 | { "trace", 1, NULL, 'T' }, |
43642b38 DN |
1957 | { NULL, 0, NULL, 0 } |
1958 | }; | |
1959 | int c; | |
1960 | int opt_index = 0; | |
9e8f1835 | 1961 | int flags = BDRV_O_UNMAP; |
43642b38 DN |
1962 | |
1963 | progname = basename(argv[0]); | |
1964 | ||
1965 | while ((c = getopt_long(argc, argv, sopt, lopt, &opt_index)) != -1) { | |
1966 | switch (c) { | |
1967 | case 's': | |
1968 | flags |= BDRV_O_SNAPSHOT; | |
1969 | break; | |
1970 | case 'n': | |
1971 | flags |= BDRV_O_NOCACHE | BDRV_O_CACHE_WB; | |
1972 | break; | |
9e8f1835 PB |
1973 | case 'd': |
1974 | if (bdrv_parse_discard_flags(optarg, &flags) < 0) { | |
1975 | error_report("Invalid discard option: %s", optarg); | |
1976 | exit(1); | |
1977 | } | |
1978 | break; | |
43642b38 DN |
1979 | case 'c': |
1980 | add_user_command(optarg); | |
1981 | break; | |
1982 | case 'r': | |
1983 | readonly = 1; | |
1984 | break; | |
1985 | case 'm': | |
1986 | misalign = 1; | |
1987 | break; | |
1988 | case 'g': | |
1989 | growable = 1; | |
1990 | break; | |
1991 | case 'k': | |
1992 | flags |= BDRV_O_NATIVE_AIO; | |
1993 | break; | |
592fa070 KW |
1994 | case 't': |
1995 | if (bdrv_parse_cache_flags(optarg, &flags) < 0) { | |
1996 | error_report("Invalid cache option: %s", optarg); | |
1997 | exit(1); | |
1998 | } | |
1999 | break; | |
d7bb72c8 SH |
2000 | case 'T': |
2001 | if (!trace_backend_init(optarg, NULL)) { | |
2002 | exit(1); /* error message will have been printed */ | |
2003 | } | |
2004 | break; | |
43642b38 DN |
2005 | case 'V': |
2006 | printf("%s version %s\n", progname, VERSION); | |
2007 | exit(0); | |
2008 | case 'h': | |
2009 | usage(progname); | |
2010 | exit(0); | |
2011 | default: | |
2012 | usage(progname); | |
2013 | exit(1); | |
f5edb014 | 2014 | } |
43642b38 DN |
2015 | } |
2016 | ||
2017 | if ((argc - optind) > 1) { | |
2018 | usage(progname); | |
2019 | exit(1); | |
2020 | } | |
e3aff4f6 | 2021 | |
a57d1143 | 2022 | qemu_init_main_loop(); |
2592c59a | 2023 | bdrv_init(); |
a57d1143 | 2024 | |
43642b38 DN |
2025 | /* initialize commands */ |
2026 | quit_init(); | |
2027 | help_init(); | |
2028 | add_command(&open_cmd); | |
2029 | add_command(&close_cmd); | |
2030 | add_command(&read_cmd); | |
2031 | add_command(&readv_cmd); | |
2032 | add_command(&write_cmd); | |
2033 | add_command(&writev_cmd); | |
2034 | add_command(&multiwrite_cmd); | |
2035 | add_command(&aio_read_cmd); | |
2036 | add_command(&aio_write_cmd); | |
2037 | add_command(&aio_flush_cmd); | |
2038 | add_command(&flush_cmd); | |
2039 | add_command(&truncate_cmd); | |
2040 | add_command(&length_cmd); | |
2041 | add_command(&info_cmd); | |
2042 | add_command(&discard_cmd); | |
2043 | add_command(&alloc_cmd); | |
2044 | add_command(&map_cmd); | |
41c695c7 KW |
2045 | add_command(&break_cmd); |
2046 | add_command(&resume_cmd); | |
2047 | add_command(&wait_break_cmd); | |
e01c30d3 | 2048 | add_command(&abort_cmd); |
43642b38 | 2049 | |
43642b38 DN |
2050 | add_check_command(init_check_command); |
2051 | ||
2052 | /* open the device */ | |
2053 | if (!readonly) { | |
2054 | flags |= BDRV_O_RDWR; | |
2055 | } | |
2056 | ||
2057 | if ((argc - optind) == 1) { | |
2058 | openfile(argv[optind], flags, growable); | |
2059 | } | |
2060 | command_loop(); | |
e3aff4f6 | 2061 | |
43642b38 | 2062 | /* |
922453bc | 2063 | * Make sure all outstanding requests complete before the program exits. |
43642b38 | 2064 | */ |
922453bc | 2065 | bdrv_drain_all(); |
95533d5f | 2066 | |
43642b38 | 2067 | if (bs) { |
b4657855 | 2068 | bdrv_delete(bs); |
43642b38 DN |
2069 | } |
2070 | return 0; | |
e3aff4f6 | 2071 | } |