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Commit | Line | Data |
---|---|---|
797ac58c KW |
1 | /* |
2 | * Command line utility to exercise the QEMU I/O path. | |
3 | * | |
093ea232 | 4 | * Copyright (C) 2009-2016 Red Hat, Inc. |
797ac58c KW |
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 | */ | |
10 | ||
80c71a24 | 11 | #include "qemu/osdep.h" |
da34e65c | 12 | #include "qapi/error.h" |
dc900c35 | 13 | #include "qapi/qmp/qdict.h" |
3d21994f | 14 | #include "qemu-io.h" |
4c7b7e9b HR |
15 | #include "sysemu/block-backend.h" |
16 | #include "block/block.h" | |
17 | #include "block/block_int.h" /* for info_f() */ | |
a8d8ecb7 | 18 | #include "block/qapi.h" |
d49b6836 | 19 | #include "qemu/error-report.h" |
6a1751b7 | 20 | #include "qemu/main-loop.h" |
922a01a0 | 21 | #include "qemu/option.h" |
cd33d02a | 22 | #include "qemu/timer.h" |
f348b6d1 | 23 | #include "qemu/cutils.h" |
5df022cf | 24 | #include "qemu/memalign.h" |
797ac58c KW |
25 | |
26 | #define CMD_NOFILE_OK 0x01 | |
27 | ||
f9883880 | 28 | bool qemuio_misalign; |
797ac58c | 29 | |
c2cdf5c5 KW |
30 | static cmdinfo_t *cmdtab; |
31 | static int ncmds; | |
32 | ||
33 | static int compare_cmdname(const void *a, const void *b) | |
34 | { | |
35 | return strcmp(((const cmdinfo_t *)a)->name, | |
36 | ((const cmdinfo_t *)b)->name); | |
37 | } | |
38 | ||
39 | void qemuio_add_command(const cmdinfo_t *ci) | |
40 | { | |
6aabeb58 PM |
41 | /* ci->perm assumes a file is open, but the GLOBAL and NOFILE_OK |
42 | * flags allow it not to be, so that combination is invalid. | |
43 | * Catch it now rather than letting it manifest as a crash if a | |
44 | * particular set of command line options are used. | |
45 | */ | |
46 | assert(ci->perm == 0 || | |
47 | (ci->flags & (CMD_FLAG_GLOBAL | CMD_NOFILE_OK)) == 0); | |
02c4f26b | 48 | cmdtab = g_renew(cmdinfo_t, cmdtab, ++ncmds); |
c2cdf5c5 KW |
49 | cmdtab[ncmds - 1] = *ci; |
50 | qsort(cmdtab, ncmds, sizeof(*cmdtab), compare_cmdname); | |
51 | } | |
52 | ||
b444d0e9 | 53 | void qemuio_command_usage(const cmdinfo_t *ci) |
c2cdf5c5 KW |
54 | { |
55 | printf("%s %s -- %s\n", ci->name, ci->args, ci->oneline); | |
c2cdf5c5 KW |
56 | } |
57 | ||
4c7b7e9b | 58 | static int init_check_command(BlockBackend *blk, const cmdinfo_t *ct) |
c2cdf5c5 KW |
59 | { |
60 | if (ct->flags & CMD_FLAG_GLOBAL) { | |
61 | return 1; | |
62 | } | |
4c7b7e9b | 63 | if (!(ct->flags & CMD_NOFILE_OK) && !blk) { |
c2cdf5c5 KW |
64 | fprintf(stderr, "no file open, try 'help open'\n"); |
65 | return 0; | |
66 | } | |
67 | return 1; | |
68 | } | |
69 | ||
b32d7a39 HR |
70 | static int command(BlockBackend *blk, const cmdinfo_t *ct, int argc, |
71 | char **argv) | |
c2cdf5c5 KW |
72 | { |
73 | char *cmd = argv[0]; | |
74 | ||
4c7b7e9b | 75 | if (!init_check_command(blk, ct)) { |
b32d7a39 | 76 | return -EINVAL; |
c2cdf5c5 KW |
77 | } |
78 | ||
79 | if (argc - 1 < ct->argmin || (ct->argmax != -1 && argc - 1 > ct->argmax)) { | |
80 | if (ct->argmax == -1) { | |
81 | fprintf(stderr, | |
82 | "bad argument count %d to %s, expected at least %d arguments\n", | |
83 | argc-1, cmd, ct->argmin); | |
84 | } else if (ct->argmin == ct->argmax) { | |
85 | fprintf(stderr, | |
86 | "bad argument count %d to %s, expected %d arguments\n", | |
87 | argc-1, cmd, ct->argmin); | |
88 | } else { | |
89 | fprintf(stderr, | |
90 | "bad argument count %d to %s, expected between %d and %d arguments\n", | |
91 | argc-1, cmd, ct->argmin, ct->argmax); | |
92 | } | |
b32d7a39 | 93 | return -EINVAL; |
c2cdf5c5 | 94 | } |
887354bd | 95 | |
8eaf1018 VSO |
96 | /* |
97 | * Request additional permissions if necessary for this command. The caller | |
887354bd | 98 | * is responsible for restoring the original permissions afterwards if this |
8eaf1018 VSO |
99 | * is what it wants. |
100 | * | |
101 | * Coverity thinks that blk may be NULL in the following if condition. It's | |
102 | * not so: in init_check_command() we fail if blk is NULL for command with | |
103 | * both CMD_FLAG_GLOBAL and CMD_NOFILE_OK flags unset. And in | |
104 | * qemuio_add_command() we assert that command with non-zero .perm field | |
105 | * doesn't set this flags. So, the following assertion is to silence | |
106 | * Coverity: | |
107 | */ | |
108 | assert(blk || !ct->perm); | |
887354bd KW |
109 | if (ct->perm && blk_is_available(blk)) { |
110 | uint64_t orig_perm, orig_shared_perm; | |
111 | blk_get_perm(blk, &orig_perm, &orig_shared_perm); | |
112 | ||
113 | if (ct->perm & ~orig_perm) { | |
114 | uint64_t new_perm; | |
115 | Error *local_err = NULL; | |
116 | int ret; | |
117 | ||
118 | new_perm = orig_perm | ct->perm; | |
119 | ||
120 | ret = blk_set_perm(blk, new_perm, orig_shared_perm, &local_err); | |
121 | if (ret < 0) { | |
122 | error_report_err(local_err); | |
b32d7a39 | 123 | return ret; |
887354bd KW |
124 | } |
125 | } | |
126 | } | |
127 | ||
d339d766 | 128 | qemu_reset_optind(); |
b32d7a39 | 129 | return ct->cfunc(blk, argc, argv); |
c2cdf5c5 KW |
130 | } |
131 | ||
132 | static const cmdinfo_t *find_command(const char *cmd) | |
133 | { | |
134 | cmdinfo_t *ct; | |
135 | ||
136 | for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { | |
137 | if (strcmp(ct->name, cmd) == 0 || | |
138 | (ct->altname && strcmp(ct->altname, cmd) == 0)) | |
139 | { | |
140 | return (const cmdinfo_t *)ct; | |
141 | } | |
142 | } | |
143 | return NULL; | |
144 | } | |
145 | ||
4694020d SH |
146 | /* Invoke fn() for commands with a matching prefix */ |
147 | void qemuio_complete_command(const char *input, | |
148 | void (*fn)(const char *cmd, void *opaque), | |
149 | void *opaque) | |
150 | { | |
151 | cmdinfo_t *ct; | |
152 | size_t input_len = strlen(input); | |
153 | ||
154 | for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { | |
155 | if (strncmp(input, ct->name, input_len) == 0) { | |
156 | fn(ct->name, opaque); | |
157 | } | |
158 | } | |
159 | } | |
160 | ||
c2cdf5c5 KW |
161 | static char **breakline(char *input, int *count) |
162 | { | |
163 | int c = 0; | |
164 | char *p; | |
5839e53b | 165 | char **rval = g_new0(char *, 1); |
c2cdf5c5 KW |
166 | |
167 | while (rval && (p = qemu_strsep(&input, " ")) != NULL) { | |
168 | if (!*p) { | |
169 | continue; | |
170 | } | |
171 | c++; | |
08193dd5 | 172 | rval = g_renew(char *, rval, (c + 1)); |
c2cdf5c5 KW |
173 | rval[c - 1] = p; |
174 | rval[c] = NULL; | |
175 | } | |
176 | *count = c; | |
177 | return rval; | |
178 | } | |
179 | ||
797ac58c KW |
180 | static int64_t cvtnum(const char *s) |
181 | { | |
f17fd4fd | 182 | int err; |
f46bfdbf | 183 | uint64_t value; |
ef5a7885 | 184 | |
f17fd4fd MA |
185 | err = qemu_strtosz(s, NULL, &value); |
186 | if (err < 0) { | |
187 | return err; | |
188 | } | |
f46bfdbf MA |
189 | if (value > INT64_MAX) { |
190 | return -ERANGE; | |
191 | } | |
f17fd4fd | 192 | return value; |
797ac58c KW |
193 | } |
194 | ||
a9ecfa00 JS |
195 | static void print_cvtnum_err(int64_t rc, const char *arg) |
196 | { | |
197 | switch (rc) { | |
198 | case -EINVAL: | |
199 | printf("Parsing error: non-numeric argument," | |
200 | " or extraneous/unrecognized suffix -- %s\n", arg); | |
201 | break; | |
202 | case -ERANGE: | |
203 | printf("Parsing error: argument too large -- %s\n", arg); | |
204 | break; | |
205 | default: | |
206 | printf("Parsing error: %s\n", arg); | |
207 | } | |
208 | } | |
209 | ||
0b613881 KW |
210 | #define EXABYTES(x) ((long long)(x) << 60) |
211 | #define PETABYTES(x) ((long long)(x) << 50) | |
212 | #define TERABYTES(x) ((long long)(x) << 40) | |
213 | #define GIGABYTES(x) ((long long)(x) << 30) | |
214 | #define MEGABYTES(x) ((long long)(x) << 20) | |
215 | #define KILOBYTES(x) ((long long)(x) << 10) | |
216 | ||
217 | #define TO_EXABYTES(x) ((x) / EXABYTES(1)) | |
218 | #define TO_PETABYTES(x) ((x) / PETABYTES(1)) | |
219 | #define TO_TERABYTES(x) ((x) / TERABYTES(1)) | |
220 | #define TO_GIGABYTES(x) ((x) / GIGABYTES(1)) | |
221 | #define TO_MEGABYTES(x) ((x) / MEGABYTES(1)) | |
222 | #define TO_KILOBYTES(x) ((x) / KILOBYTES(1)) | |
223 | ||
224 | static void cvtstr(double value, char *str, size_t size) | |
225 | { | |
226 | char *trim; | |
227 | const char *suffix; | |
228 | ||
229 | if (value >= EXABYTES(1)) { | |
230 | suffix = " EiB"; | |
231 | snprintf(str, size - 4, "%.3f", TO_EXABYTES(value)); | |
232 | } else if (value >= PETABYTES(1)) { | |
233 | suffix = " PiB"; | |
234 | snprintf(str, size - 4, "%.3f", TO_PETABYTES(value)); | |
235 | } else if (value >= TERABYTES(1)) { | |
236 | suffix = " TiB"; | |
237 | snprintf(str, size - 4, "%.3f", TO_TERABYTES(value)); | |
238 | } else if (value >= GIGABYTES(1)) { | |
239 | suffix = " GiB"; | |
240 | snprintf(str, size - 4, "%.3f", TO_GIGABYTES(value)); | |
241 | } else if (value >= MEGABYTES(1)) { | |
242 | suffix = " MiB"; | |
243 | snprintf(str, size - 4, "%.3f", TO_MEGABYTES(value)); | |
244 | } else if (value >= KILOBYTES(1)) { | |
245 | suffix = " KiB"; | |
246 | snprintf(str, size - 4, "%.3f", TO_KILOBYTES(value)); | |
247 | } else { | |
248 | suffix = " bytes"; | |
249 | snprintf(str, size - 6, "%f", value); | |
250 | } | |
251 | ||
252 | trim = strstr(str, ".000"); | |
253 | if (trim) { | |
254 | strcpy(trim, suffix); | |
255 | } else { | |
256 | strcat(str, suffix); | |
257 | } | |
258 | } | |
259 | ||
260 | ||
261 | ||
50290c00 | 262 | static struct timespec tsub(struct timespec t1, struct timespec t2) |
0b613881 | 263 | { |
50290c00 AB |
264 | t1.tv_nsec -= t2.tv_nsec; |
265 | if (t1.tv_nsec < 0) { | |
266 | t1.tv_nsec += NANOSECONDS_PER_SECOND; | |
0b613881 KW |
267 | t1.tv_sec--; |
268 | } | |
269 | t1.tv_sec -= t2.tv_sec; | |
270 | return t1; | |
271 | } | |
272 | ||
50290c00 | 273 | static double tdiv(double value, struct timespec tv) |
0b613881 | 274 | { |
50290c00 AB |
275 | double seconds = tv.tv_sec + (tv.tv_nsec / 1e9); |
276 | return value / seconds; | |
0b613881 KW |
277 | } |
278 | ||
279 | #define HOURS(sec) ((sec) / (60 * 60)) | |
280 | #define MINUTES(sec) (((sec) % (60 * 60)) / 60) | |
281 | #define SECONDS(sec) ((sec) % 60) | |
282 | ||
283 | enum { | |
284 | DEFAULT_TIME = 0x0, | |
285 | TERSE_FIXED_TIME = 0x1, | |
286 | VERBOSE_FIXED_TIME = 0x2, | |
287 | }; | |
288 | ||
50290c00 | 289 | static void timestr(struct timespec *tv, char *ts, size_t size, int format) |
0b613881 | 290 | { |
50290c00 | 291 | double frac_sec = tv->tv_nsec / 1e9; |
0b613881 KW |
292 | |
293 | if (format & TERSE_FIXED_TIME) { | |
294 | if (!HOURS(tv->tv_sec)) { | |
50290c00 AB |
295 | snprintf(ts, size, "%u:%05.2f", |
296 | (unsigned int) MINUTES(tv->tv_sec), | |
297 | SECONDS(tv->tv_sec) + frac_sec); | |
0b613881 KW |
298 | return; |
299 | } | |
300 | format |= VERBOSE_FIXED_TIME; /* fallback if hours needed */ | |
301 | } | |
302 | ||
303 | if ((format & VERBOSE_FIXED_TIME) || tv->tv_sec) { | |
50290c00 | 304 | snprintf(ts, size, "%u:%02u:%05.2f", |
0b613881 KW |
305 | (unsigned int) HOURS(tv->tv_sec), |
306 | (unsigned int) MINUTES(tv->tv_sec), | |
50290c00 | 307 | SECONDS(tv->tv_sec) + frac_sec); |
0b613881 | 308 | } else { |
50290c00 | 309 | snprintf(ts, size, "%05.2f sec", frac_sec); |
0b613881 KW |
310 | } |
311 | } | |
312 | ||
797ac58c KW |
313 | /* |
314 | * Parse the pattern argument to various sub-commands. | |
315 | * | |
316 | * Because the pattern is used as an argument to memset it must evaluate | |
317 | * to an unsigned integer that fits into a single byte. | |
318 | */ | |
319 | static int parse_pattern(const char *arg) | |
320 | { | |
321 | char *endptr = NULL; | |
322 | long pattern; | |
323 | ||
324 | pattern = strtol(arg, &endptr, 0); | |
325 | if (pattern < 0 || pattern > UCHAR_MAX || *endptr != '\0') { | |
326 | printf("%s is not a valid pattern byte\n", arg); | |
327 | return -1; | |
328 | } | |
329 | ||
330 | return pattern; | |
331 | } | |
332 | ||
333 | /* | |
334 | * Memory allocation helpers. | |
335 | * | |
336 | * Make sure memory is aligned by default, or purposefully misaligned if | |
337 | * that is specified on the command line. | |
338 | */ | |
339 | ||
340 | #define MISALIGN_OFFSET 16 | |
00e2a04c SH |
341 | static void *qemu_io_alloc(BlockBackend *blk, size_t len, int pattern, |
342 | bool register_buf) | |
797ac58c KW |
343 | { |
344 | void *buf; | |
345 | ||
346 | if (qemuio_misalign) { | |
347 | len += MISALIGN_OFFSET; | |
348 | } | |
4c7b7e9b | 349 | buf = blk_blockalign(blk, len); |
797ac58c | 350 | memset(buf, pattern, len); |
00e2a04c SH |
351 | if (register_buf) { |
352 | blk_register_buf(blk, buf, len, &error_abort); | |
353 | } | |
797ac58c KW |
354 | if (qemuio_misalign) { |
355 | buf += MISALIGN_OFFSET; | |
356 | } | |
357 | return buf; | |
358 | } | |
359 | ||
00e2a04c SH |
360 | static void qemu_io_free(BlockBackend *blk, void *p, size_t len, |
361 | bool unregister_buf) | |
797ac58c KW |
362 | { |
363 | if (qemuio_misalign) { | |
364 | p -= MISALIGN_OFFSET; | |
00e2a04c SH |
365 | len += MISALIGN_OFFSET; |
366 | } | |
367 | if (unregister_buf) { | |
368 | blk_unregister_buf(blk, p, len); | |
797ac58c KW |
369 | } |
370 | qemu_vfree(p); | |
371 | } | |
372 | ||
4d731510 DP |
373 | /* |
374 | * qemu_io_alloc_from_file() | |
375 | * | |
376 | * Allocates the buffer and populates it with the content of the given file | |
377 | * up to @len bytes. If the file length is less than @len, then the buffer | |
378 | * is populated with the file content cyclically. | |
379 | * | |
380 | * @blk - the block backend where the buffer content is going to be written to | |
381 | * @len - the buffer length | |
382 | * @file_name - the file to read the content from | |
00e2a04c | 383 | * @register_buf - call blk_register_buf() |
4d731510 DP |
384 | * |
385 | * Returns: the buffer pointer on success | |
386 | * NULL on error | |
387 | */ | |
388 | static void *qemu_io_alloc_from_file(BlockBackend *blk, size_t len, | |
00e2a04c | 389 | const char *file_name, bool register_buf) |
4d731510 | 390 | { |
00e2a04c SH |
391 | size_t alloc_len = len + (qemuio_misalign ? MISALIGN_OFFSET : 0); |
392 | char *alloc_buf, *buf, *end; | |
4d731510 DP |
393 | FILE *f = fopen(file_name, "r"); |
394 | int pattern_len; | |
395 | ||
396 | if (!f) { | |
397 | perror(file_name); | |
398 | return NULL; | |
399 | } | |
400 | ||
00e2a04c | 401 | alloc_buf = buf = blk_blockalign(blk, alloc_len); |
4d731510 DP |
402 | |
403 | if (qemuio_misalign) { | |
4d731510 | 404 | buf += MISALIGN_OFFSET; |
4d731510 DP |
405 | } |
406 | ||
00e2a04c | 407 | pattern_len = fread(buf, 1, len, f); |
4d731510 DP |
408 | |
409 | if (ferror(f)) { | |
410 | perror(file_name); | |
411 | goto error; | |
412 | } | |
413 | ||
414 | if (pattern_len == 0) { | |
415 | fprintf(stderr, "%s: file is empty\n", file_name); | |
416 | goto error; | |
417 | } | |
418 | ||
419 | fclose(f); | |
c8e68b43 | 420 | f = NULL; |
4d731510 | 421 | |
00e2a04c SH |
422 | if (register_buf) { |
423 | blk_register_buf(blk, alloc_buf, alloc_len, &error_abort); | |
424 | } | |
4d731510 | 425 | |
00e2a04c SH |
426 | end = buf + len; |
427 | for (char *p = buf + pattern_len; p < end; p += pattern_len) { | |
428 | memcpy(p, buf, MIN(pattern_len, end - p)); | |
4d731510 DP |
429 | } |
430 | ||
00e2a04c | 431 | return buf; |
4d731510 DP |
432 | |
433 | error: | |
00e2a04c SH |
434 | /* |
435 | * This code path is only taken before blk_register_buf() is called, so | |
436 | * hardcode the qemu_io_free() unregister_buf argument to false. | |
437 | */ | |
438 | qemu_io_free(blk, alloc_buf, alloc_len, false); | |
c8e68b43 KW |
439 | if (f) { |
440 | fclose(f); | |
441 | } | |
4d731510 DP |
442 | return NULL; |
443 | } | |
444 | ||
9b0beaf3 | 445 | static void dump_buffer(const void *buffer, int64_t offset, int64_t len) |
797ac58c | 446 | { |
9b0beaf3 JS |
447 | uint64_t i; |
448 | int j; | |
797ac58c KW |
449 | const uint8_t *p; |
450 | ||
451 | for (i = 0, p = buffer; i < len; i += 16) { | |
452 | const uint8_t *s = p; | |
453 | ||
454 | printf("%08" PRIx64 ": ", offset + i); | |
455 | for (j = 0; j < 16 && i + j < len; j++, p++) { | |
456 | printf("%02x ", *p); | |
457 | } | |
458 | printf(" "); | |
459 | for (j = 0; j < 16 && i + j < len; j++, s++) { | |
460 | if (isalnum(*s)) { | |
461 | printf("%c", *s); | |
462 | } else { | |
463 | printf("."); | |
464 | } | |
465 | } | |
466 | printf("\n"); | |
467 | } | |
468 | } | |
469 | ||
50290c00 | 470 | static void print_report(const char *op, struct timespec *t, int64_t offset, |
dc38852a | 471 | int64_t count, int64_t total, int cnt, bool Cflag) |
797ac58c KW |
472 | { |
473 | char s1[64], s2[64], ts[64]; | |
474 | ||
475 | timestr(t, ts, sizeof(ts), Cflag ? VERBOSE_FIXED_TIME : 0); | |
476 | if (!Cflag) { | |
477 | cvtstr((double)total, s1, sizeof(s1)); | |
478 | cvtstr(tdiv((double)total, *t), s2, sizeof(s2)); | |
9b0beaf3 | 479 | printf("%s %"PRId64"/%"PRId64" bytes at offset %" PRId64 "\n", |
797ac58c KW |
480 | op, total, count, offset); |
481 | printf("%s, %d ops; %s (%s/sec and %.4f ops/sec)\n", | |
482 | s1, cnt, ts, s2, tdiv((double)cnt, *t)); | |
483 | } else {/* bytes,ops,time,bytes/sec,ops/sec */ | |
9b0beaf3 | 484 | printf("%"PRId64",%d,%s,%.3f,%.3f\n", |
797ac58c KW |
485 | total, cnt, ts, |
486 | tdiv((double)total, *t), | |
487 | tdiv((double)cnt, *t)); | |
488 | } | |
489 | } | |
490 | ||
491 | /* | |
492 | * Parse multiple length statements for vectored I/O, and construct an I/O | |
493 | * vector matching it. | |
494 | */ | |
495 | static void * | |
4c7b7e9b | 496 | create_iovec(BlockBackend *blk, QEMUIOVector *qiov, char **argv, int nr_iov, |
00e2a04c | 497 | int pattern, bool register_buf) |
797ac58c KW |
498 | { |
499 | size_t *sizes = g_new0(size_t, nr_iov); | |
500 | size_t count = 0; | |
501 | void *buf = NULL; | |
502 | void *p; | |
503 | int i; | |
504 | ||
505 | for (i = 0; i < nr_iov; i++) { | |
506 | char *arg = argv[i]; | |
507 | int64_t len; | |
508 | ||
509 | len = cvtnum(arg); | |
510 | if (len < 0) { | |
a9ecfa00 | 511 | print_cvtnum_err(len, arg); |
797ac58c KW |
512 | goto fail; |
513 | } | |
514 | ||
3026c468 AG |
515 | if (len > BDRV_REQUEST_MAX_BYTES) { |
516 | printf("Argument '%s' exceeds maximum size %" PRIu64 "\n", arg, | |
517 | (uint64_t)BDRV_REQUEST_MAX_BYTES); | |
518 | goto fail; | |
519 | } | |
520 | ||
521 | if (count > BDRV_REQUEST_MAX_BYTES - len) { | |
522 | printf("The total number of bytes exceed the maximum size %" PRIu64 | |
523 | "\n", (uint64_t)BDRV_REQUEST_MAX_BYTES); | |
797ac58c KW |
524 | goto fail; |
525 | } | |
526 | ||
797ac58c KW |
527 | sizes[i] = len; |
528 | count += len; | |
529 | } | |
530 | ||
531 | qemu_iovec_init(qiov, nr_iov); | |
532 | ||
00e2a04c | 533 | buf = p = qemu_io_alloc(blk, count, pattern, register_buf); |
797ac58c KW |
534 | |
535 | for (i = 0; i < nr_iov; i++) { | |
536 | qemu_iovec_add(qiov, p, sizes[i]); | |
537 | p += sizes[i]; | |
538 | } | |
539 | ||
540 | fail: | |
541 | g_free(sizes); | |
542 | return buf; | |
543 | } | |
544 | ||
9b0beaf3 | 545 | static int do_pread(BlockBackend *blk, char *buf, int64_t offset, |
00e2a04c | 546 | int64_t bytes, BdrvRequestFlags flags, int64_t *total) |
797ac58c | 547 | { |
bf5b16fa AF |
548 | int ret; |
549 | ||
f5a5ca79 | 550 | if (bytes > INT_MAX) { |
9b0beaf3 JS |
551 | return -ERANGE; |
552 | } | |
553 | ||
00e2a04c | 554 | ret = blk_pread(blk, offset, bytes, (uint8_t *)buf, flags); |
bf5b16fa AF |
555 | if (ret < 0) { |
556 | return ret; | |
797ac58c | 557 | } |
bf5b16fa | 558 | *total = bytes; |
797ac58c KW |
559 | return 1; |
560 | } | |
561 | ||
9b0beaf3 | 562 | static int do_pwrite(BlockBackend *blk, char *buf, int64_t offset, |
1321e008 | 563 | int64_t bytes, BdrvRequestFlags flags, int64_t *total) |
797ac58c | 564 | { |
bf5b16fa AF |
565 | int ret; |
566 | ||
f5a5ca79 | 567 | if (bytes > INT_MAX) { |
9b0beaf3 JS |
568 | return -ERANGE; |
569 | } | |
570 | ||
a9262f55 | 571 | ret = blk_pwrite(blk, offset, bytes, (uint8_t *)buf, flags); |
bf5b16fa AF |
572 | if (ret < 0) { |
573 | return ret; | |
797ac58c | 574 | } |
bf5b16fa | 575 | *total = bytes; |
797ac58c KW |
576 | return 1; |
577 | } | |
578 | ||
264dcbb2 | 579 | static int do_pwrite_zeroes(BlockBackend *blk, int64_t offset, |
1321e008 SH |
580 | int64_t bytes, BdrvRequestFlags flags, |
581 | int64_t *total) | |
797ac58c | 582 | { |
264dcbb2 PB |
583 | int ret = blk_pwrite_zeroes(blk, offset, bytes, |
584 | flags | BDRV_REQ_ZERO_WRITE); | |
585 | ||
586 | if (ret < 0) { | |
587 | return ret; | |
797ac58c | 588 | } |
264dcbb2 PB |
589 | *total = bytes; |
590 | return 1; | |
797ac58c KW |
591 | } |
592 | ||
4c7b7e9b | 593 | static int do_write_compressed(BlockBackend *blk, char *buf, int64_t offset, |
f5a5ca79 | 594 | int64_t bytes, int64_t *total) |
797ac58c KW |
595 | { |
596 | int ret; | |
597 | ||
41ae31e3 | 598 | if (bytes > BDRV_REQUEST_MAX_BYTES) { |
9b0beaf3 JS |
599 | return -ERANGE; |
600 | } | |
601 | ||
0cadf2c8 | 602 | ret = blk_pwrite_compressed(blk, offset, bytes, buf); |
797ac58c KW |
603 | if (ret < 0) { |
604 | return ret; | |
605 | } | |
f5a5ca79 | 606 | *total = bytes; |
797ac58c KW |
607 | return 1; |
608 | } | |
609 | ||
4c7b7e9b | 610 | static int do_load_vmstate(BlockBackend *blk, char *buf, int64_t offset, |
9b0beaf3 | 611 | int64_t count, int64_t *total) |
797ac58c | 612 | { |
9b0beaf3 JS |
613 | if (count > INT_MAX) { |
614 | return -ERANGE; | |
615 | } | |
616 | ||
4c7b7e9b | 617 | *total = blk_load_vmstate(blk, (uint8_t *)buf, offset, count); |
797ac58c KW |
618 | if (*total < 0) { |
619 | return *total; | |
620 | } | |
621 | return 1; | |
622 | } | |
623 | ||
4c7b7e9b | 624 | static int do_save_vmstate(BlockBackend *blk, char *buf, int64_t offset, |
9b0beaf3 | 625 | int64_t count, int64_t *total) |
797ac58c | 626 | { |
9b0beaf3 JS |
627 | if (count > INT_MAX) { |
628 | return -ERANGE; | |
629 | } | |
630 | ||
4c7b7e9b | 631 | *total = blk_save_vmstate(blk, (uint8_t *)buf, offset, count); |
797ac58c KW |
632 | if (*total < 0) { |
633 | return *total; | |
634 | } | |
635 | return 1; | |
636 | } | |
637 | ||
638 | #define NOT_DONE 0x7fffffff | |
639 | static void aio_rw_done(void *opaque, int ret) | |
640 | { | |
641 | *(int *)opaque = ret; | |
642 | } | |
643 | ||
4c7b7e9b | 644 | static int do_aio_readv(BlockBackend *blk, QEMUIOVector *qiov, |
00e2a04c | 645 | int64_t offset, BdrvRequestFlags flags, int *total) |
797ac58c KW |
646 | { |
647 | int async_ret = NOT_DONE; | |
648 | ||
00e2a04c | 649 | blk_aio_preadv(blk, offset, qiov, flags, aio_rw_done, &async_ret); |
797ac58c KW |
650 | while (async_ret == NOT_DONE) { |
651 | main_loop_wait(false); | |
652 | } | |
653 | ||
654 | *total = qiov->size; | |
655 | return async_ret < 0 ? async_ret : 1; | |
656 | } | |
657 | ||
4c7b7e9b | 658 | static int do_aio_writev(BlockBackend *blk, QEMUIOVector *qiov, |
1321e008 | 659 | int64_t offset, BdrvRequestFlags flags, int *total) |
797ac58c KW |
660 | { |
661 | int async_ret = NOT_DONE; | |
662 | ||
770e0e0e | 663 | blk_aio_pwritev(blk, offset, qiov, flags, aio_rw_done, &async_ret); |
797ac58c KW |
664 | while (async_ret == NOT_DONE) { |
665 | main_loop_wait(false); | |
666 | } | |
667 | ||
668 | *total = qiov->size; | |
669 | return async_ret < 0 ? async_ret : 1; | |
670 | } | |
671 | ||
797ac58c KW |
672 | static void read_help(void) |
673 | { | |
674 | printf( | |
675 | "\n" | |
676 | " reads a range of bytes from the given offset\n" | |
677 | "\n" | |
678 | " Example:\n" | |
679 | " 'read -v 512 1k' - dumps 1 kilobyte read from 512 bytes into the file\n" | |
680 | "\n" | |
681 | " Reads a segment of the currently open file, optionally dumping it to the\n" | |
682 | " standard output stream (with -v option) for subsequent inspection.\n" | |
683 | " -b, -- read from the VM state rather than the virtual disk\n" | |
684 | " -C, -- report statistics in a machine parsable format\n" | |
685 | " -l, -- length for pattern verification (only with -P)\n" | |
093ea232 | 686 | " -p, -- ignored for backwards compatibility\n" |
797ac58c KW |
687 | " -P, -- use a pattern to verify read data\n" |
688 | " -q, -- quiet mode, do not show I/O statistics\n" | |
00e2a04c | 689 | " -r, -- register I/O buffer\n" |
797ac58c KW |
690 | " -s, -- start offset for pattern verification (only with -P)\n" |
691 | " -v, -- dump buffer to standard output\n" | |
692 | "\n"); | |
693 | } | |
694 | ||
b32d7a39 | 695 | static int read_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
696 | |
697 | static const cmdinfo_t read_cmd = { | |
698 | .name = "read", | |
699 | .altname = "r", | |
700 | .cfunc = read_f, | |
701 | .argmin = 2, | |
702 | .argmax = -1, | |
00e2a04c | 703 | .args = "[-abCqrv] [-P pattern [-s off] [-l len]] off len", |
797ac58c KW |
704 | .oneline = "reads a number of bytes at a specified offset", |
705 | .help = read_help, | |
706 | }; | |
707 | ||
b32d7a39 | 708 | static int read_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 709 | { |
50290c00 | 710 | struct timespec t1, t2; |
093ea232 | 711 | bool Cflag = false, qflag = false, vflag = false; |
dc38852a | 712 | bool Pflag = false, sflag = false, lflag = false, bflag = false; |
b32d7a39 | 713 | int c, cnt, ret; |
797ac58c KW |
714 | char *buf; |
715 | int64_t offset; | |
9b0beaf3 | 716 | int64_t count; |
797ac58c | 717 | /* Some compilers get confused and warn if this is not initialized. */ |
9b0beaf3 JS |
718 | int64_t total = 0; |
719 | int pattern = 0; | |
720 | int64_t pattern_offset = 0, pattern_count = 0; | |
00e2a04c | 721 | BdrvRequestFlags flags = 0; |
797ac58c | 722 | |
00e2a04c | 723 | while ((c = getopt(argc, argv, "bCl:pP:qrs:v")) != -1) { |
797ac58c KW |
724 | switch (c) { |
725 | case 'b': | |
dc38852a | 726 | bflag = true; |
797ac58c KW |
727 | break; |
728 | case 'C': | |
dc38852a | 729 | Cflag = true; |
797ac58c KW |
730 | break; |
731 | case 'l': | |
dc38852a | 732 | lflag = true; |
797ac58c KW |
733 | pattern_count = cvtnum(optarg); |
734 | if (pattern_count < 0) { | |
a9ecfa00 | 735 | print_cvtnum_err(pattern_count, optarg); |
b32d7a39 | 736 | return pattern_count; |
797ac58c KW |
737 | } |
738 | break; | |
739 | case 'p': | |
093ea232 | 740 | /* Ignored for backwards compatibility */ |
797ac58c KW |
741 | break; |
742 | case 'P': | |
dc38852a | 743 | Pflag = true; |
797ac58c KW |
744 | pattern = parse_pattern(optarg); |
745 | if (pattern < 0) { | |
b32d7a39 | 746 | return -EINVAL; |
797ac58c KW |
747 | } |
748 | break; | |
749 | case 'q': | |
dc38852a | 750 | qflag = true; |
797ac58c | 751 | break; |
00e2a04c SH |
752 | case 'r': |
753 | flags |= BDRV_REQ_REGISTERED_BUF; | |
754 | break; | |
797ac58c | 755 | case 's': |
dc38852a | 756 | sflag = true; |
797ac58c KW |
757 | pattern_offset = cvtnum(optarg); |
758 | if (pattern_offset < 0) { | |
a9ecfa00 | 759 | print_cvtnum_err(pattern_offset, optarg); |
b32d7a39 | 760 | return pattern_offset; |
797ac58c KW |
761 | } |
762 | break; | |
763 | case 'v': | |
dc38852a | 764 | vflag = true; |
797ac58c KW |
765 | break; |
766 | default: | |
b444d0e9 | 767 | qemuio_command_usage(&read_cmd); |
b32d7a39 | 768 | return -EINVAL; |
797ac58c KW |
769 | } |
770 | } | |
771 | ||
772 | if (optind != argc - 2) { | |
b444d0e9 | 773 | qemuio_command_usage(&read_cmd); |
b32d7a39 | 774 | return -EINVAL; |
797ac58c KW |
775 | } |
776 | ||
797ac58c KW |
777 | offset = cvtnum(argv[optind]); |
778 | if (offset < 0) { | |
a9ecfa00 | 779 | print_cvtnum_err(offset, argv[optind]); |
b32d7a39 | 780 | return offset; |
797ac58c KW |
781 | } |
782 | ||
783 | optind++; | |
784 | count = cvtnum(argv[optind]); | |
785 | if (count < 0) { | |
a9ecfa00 | 786 | print_cvtnum_err(count, argv[optind]); |
b32d7a39 | 787 | return count; |
3026c468 | 788 | } else if (count > BDRV_REQUEST_MAX_BYTES) { |
9b0beaf3 | 789 | printf("length cannot exceed %" PRIu64 ", given %s\n", |
3026c468 | 790 | (uint64_t)BDRV_REQUEST_MAX_BYTES, argv[optind]); |
b32d7a39 | 791 | return -EINVAL; |
797ac58c KW |
792 | } |
793 | ||
794 | if (!Pflag && (lflag || sflag)) { | |
b444d0e9 | 795 | qemuio_command_usage(&read_cmd); |
b32d7a39 | 796 | return -EINVAL; |
797ac58c KW |
797 | } |
798 | ||
799 | if (!lflag) { | |
800 | pattern_count = count - pattern_offset; | |
801 | } | |
802 | ||
803 | if ((pattern_count < 0) || (pattern_count + pattern_offset > count)) { | |
804 | printf("pattern verification range exceeds end of read data\n"); | |
b32d7a39 | 805 | return -EINVAL; |
797ac58c KW |
806 | } |
807 | ||
093ea232 | 808 | if (bflag) { |
1bce6b4c EB |
809 | if (!QEMU_IS_ALIGNED(offset, BDRV_SECTOR_SIZE)) { |
810 | printf("%" PRId64 " is not a sector-aligned value for 'offset'\n", | |
797ac58c | 811 | offset); |
b32d7a39 | 812 | return -EINVAL; |
797ac58c | 813 | } |
1bce6b4c EB |
814 | if (!QEMU_IS_ALIGNED(count, BDRV_SECTOR_SIZE)) { |
815 | printf("%"PRId64" is not a sector-aligned value for 'count'\n", | |
797ac58c | 816 | count); |
b32d7a39 | 817 | return -EINVAL; |
797ac58c | 818 | } |
00e2a04c SH |
819 | if (flags & BDRV_REQ_REGISTERED_BUF) { |
820 | printf("I/O buffer registration is not supported when reading " | |
821 | "from vmstate\n"); | |
822 | return -EINVAL; | |
823 | } | |
797ac58c KW |
824 | } |
825 | ||
00e2a04c | 826 | buf = qemu_io_alloc(blk, count, 0xab, flags & BDRV_REQ_REGISTERED_BUF); |
797ac58c | 827 | |
50290c00 | 828 | clock_gettime(CLOCK_MONOTONIC, &t1); |
7b3f9712 | 829 | if (bflag) { |
b32d7a39 | 830 | ret = do_load_vmstate(blk, buf, offset, count, &total); |
797ac58c | 831 | } else { |
00e2a04c | 832 | ret = do_pread(blk, buf, offset, count, flags, &total); |
797ac58c | 833 | } |
50290c00 | 834 | clock_gettime(CLOCK_MONOTONIC, &t2); |
797ac58c | 835 | |
b32d7a39 HR |
836 | if (ret < 0) { |
837 | printf("read failed: %s\n", strerror(-ret)); | |
797ac58c KW |
838 | goto out; |
839 | } | |
b32d7a39 HR |
840 | cnt = ret; |
841 | ||
842 | ret = 0; | |
797ac58c KW |
843 | |
844 | if (Pflag) { | |
845 | void *cmp_buf = g_malloc(pattern_count); | |
846 | memset(cmp_buf, pattern, pattern_count); | |
847 | if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) { | |
848 | printf("Pattern verification failed at offset %" | |
9b0beaf3 | 849 | PRId64 ", %"PRId64" bytes\n", |
797ac58c | 850 | offset + pattern_offset, pattern_count); |
b32d7a39 | 851 | ret = -EINVAL; |
797ac58c KW |
852 | } |
853 | g_free(cmp_buf); | |
854 | } | |
855 | ||
856 | if (qflag) { | |
857 | goto out; | |
858 | } | |
859 | ||
860 | if (vflag) { | |
861 | dump_buffer(buf, offset, count); | |
862 | } | |
863 | ||
864 | /* Finally, report back -- -C gives a parsable format */ | |
865 | t2 = tsub(t2, t1); | |
866 | print_report("read", &t2, offset, count, total, cnt, Cflag); | |
867 | ||
868 | out: | |
00e2a04c | 869 | qemu_io_free(blk, buf, count, flags & BDRV_REQ_REGISTERED_BUF); |
b32d7a39 | 870 | return ret; |
797ac58c KW |
871 | } |
872 | ||
873 | static void readv_help(void) | |
874 | { | |
875 | printf( | |
876 | "\n" | |
877 | " reads a range of bytes from the given offset into multiple buffers\n" | |
878 | "\n" | |
879 | " Example:\n" | |
880 | " 'readv -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" | |
881 | "\n" | |
882 | " Reads a segment of the currently open file, optionally dumping it to the\n" | |
883 | " standard output stream (with -v option) for subsequent inspection.\n" | |
884 | " Uses multiple iovec buffers if more than one byte range is specified.\n" | |
885 | " -C, -- report statistics in a machine parsable format\n" | |
886 | " -P, -- use a pattern to verify read data\n" | |
797ac58c | 887 | " -q, -- quiet mode, do not show I/O statistics\n" |
00e2a04c SH |
888 | " -r, -- register I/O buffer\n" |
889 | " -v, -- dump buffer to standard output\n" | |
797ac58c KW |
890 | "\n"); |
891 | } | |
892 | ||
b32d7a39 | 893 | static int readv_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
894 | |
895 | static const cmdinfo_t readv_cmd = { | |
896 | .name = "readv", | |
897 | .cfunc = readv_f, | |
898 | .argmin = 2, | |
899 | .argmax = -1, | |
00e2a04c | 900 | .args = "[-Cqrv] [-P pattern] off len [len..]", |
797ac58c KW |
901 | .oneline = "reads a number of bytes at a specified offset", |
902 | .help = readv_help, | |
903 | }; | |
904 | ||
b32d7a39 | 905 | static int readv_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 906 | { |
50290c00 | 907 | struct timespec t1, t2; |
dc38852a | 908 | bool Cflag = false, qflag = false, vflag = false; |
b32d7a39 | 909 | int c, cnt, ret; |
797ac58c KW |
910 | char *buf; |
911 | int64_t offset; | |
912 | /* Some compilers get confused and warn if this is not initialized. */ | |
913 | int total = 0; | |
914 | int nr_iov; | |
915 | QEMUIOVector qiov; | |
916 | int pattern = 0; | |
dc38852a | 917 | bool Pflag = false; |
00e2a04c | 918 | BdrvRequestFlags flags = 0; |
797ac58c | 919 | |
00e2a04c | 920 | while ((c = getopt(argc, argv, "CP:qrv")) != -1) { |
797ac58c KW |
921 | switch (c) { |
922 | case 'C': | |
dc38852a | 923 | Cflag = true; |
797ac58c KW |
924 | break; |
925 | case 'P': | |
dc38852a | 926 | Pflag = true; |
797ac58c KW |
927 | pattern = parse_pattern(optarg); |
928 | if (pattern < 0) { | |
b32d7a39 | 929 | return -EINVAL; |
797ac58c KW |
930 | } |
931 | break; | |
932 | case 'q': | |
dc38852a | 933 | qflag = true; |
797ac58c | 934 | break; |
00e2a04c SH |
935 | case 'r': |
936 | flags |= BDRV_REQ_REGISTERED_BUF; | |
937 | break; | |
797ac58c | 938 | case 'v': |
dc38852a | 939 | vflag = true; |
797ac58c KW |
940 | break; |
941 | default: | |
b444d0e9 | 942 | qemuio_command_usage(&readv_cmd); |
b32d7a39 | 943 | return -EINVAL; |
797ac58c KW |
944 | } |
945 | } | |
946 | ||
947 | if (optind > argc - 2) { | |
b444d0e9 | 948 | qemuio_command_usage(&readv_cmd); |
b32d7a39 | 949 | return -EINVAL; |
797ac58c KW |
950 | } |
951 | ||
952 | ||
953 | offset = cvtnum(argv[optind]); | |
954 | if (offset < 0) { | |
a9ecfa00 | 955 | print_cvtnum_err(offset, argv[optind]); |
b32d7a39 | 956 | return offset; |
797ac58c KW |
957 | } |
958 | optind++; | |
959 | ||
797ac58c | 960 | nr_iov = argc - optind; |
00e2a04c SH |
961 | buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, 0xab, |
962 | flags & BDRV_REQ_REGISTERED_BUF); | |
797ac58c | 963 | if (buf == NULL) { |
b32d7a39 | 964 | return -EINVAL; |
797ac58c KW |
965 | } |
966 | ||
50290c00 | 967 | clock_gettime(CLOCK_MONOTONIC, &t1); |
00e2a04c | 968 | ret = do_aio_readv(blk, &qiov, offset, flags, &total); |
50290c00 | 969 | clock_gettime(CLOCK_MONOTONIC, &t2); |
797ac58c | 970 | |
b32d7a39 HR |
971 | if (ret < 0) { |
972 | printf("readv failed: %s\n", strerror(-ret)); | |
797ac58c KW |
973 | goto out; |
974 | } | |
b32d7a39 HR |
975 | cnt = ret; |
976 | ||
977 | ret = 0; | |
797ac58c KW |
978 | |
979 | if (Pflag) { | |
980 | void *cmp_buf = g_malloc(qiov.size); | |
981 | memset(cmp_buf, pattern, qiov.size); | |
982 | if (memcmp(buf, cmp_buf, qiov.size)) { | |
983 | printf("Pattern verification failed at offset %" | |
cf67b692 | 984 | PRId64 ", %zu bytes\n", offset, qiov.size); |
b32d7a39 | 985 | ret = -EINVAL; |
797ac58c KW |
986 | } |
987 | g_free(cmp_buf); | |
988 | } | |
989 | ||
990 | if (qflag) { | |
991 | goto out; | |
992 | } | |
993 | ||
994 | if (vflag) { | |
995 | dump_buffer(buf, offset, qiov.size); | |
996 | } | |
997 | ||
998 | /* Finally, report back -- -C gives a parsable format */ | |
999 | t2 = tsub(t2, t1); | |
1000 | print_report("read", &t2, offset, qiov.size, total, cnt, Cflag); | |
1001 | ||
1002 | out: | |
00e2a04c | 1003 | qemu_io_free(blk, buf, qiov.size, flags & BDRV_REQ_REGISTERED_BUF); |
797ac58c | 1004 | qemu_iovec_destroy(&qiov); |
b32d7a39 | 1005 | return ret; |
797ac58c KW |
1006 | } |
1007 | ||
1008 | static void write_help(void) | |
1009 | { | |
1010 | printf( | |
1011 | "\n" | |
1012 | " writes a range of bytes from the given offset\n" | |
1013 | "\n" | |
1014 | " Example:\n" | |
1015 | " 'write 512 1k' - writes 1 kilobyte at 512 bytes into the open file\n" | |
1016 | "\n" | |
1017 | " Writes into a segment of the currently open file, using a buffer\n" | |
1018 | " filled with a set pattern (0xcdcdcdcd).\n" | |
1019 | " -b, -- write to the VM state rather than the virtual disk\n" | |
4c7b7e9b | 1020 | " -c, -- write compressed data with blk_write_compressed\n" |
00e2a04c | 1021 | " -C, -- report statistics in a machine parsable format\n" |
770e0e0e | 1022 | " -f, -- use Force Unit Access semantics\n" |
c6e3f520 | 1023 | " -n, -- with -z, don't allow slow fallback\n" |
093ea232 | 1024 | " -p, -- ignored for backwards compatibility\n" |
797ac58c | 1025 | " -P, -- use different pattern to fill file\n" |
797ac58c | 1026 | " -q, -- quiet mode, do not show I/O statistics\n" |
00e2a04c SH |
1027 | " -r, -- register I/O buffer\n" |
1028 | " -s, -- use a pattern file to fill the write buffer\n" | |
c2e001cc | 1029 | " -u, -- with -z, allow unmapping\n" |
264dcbb2 | 1030 | " -z, -- write zeroes using blk_pwrite_zeroes\n" |
797ac58c KW |
1031 | "\n"); |
1032 | } | |
1033 | ||
b32d7a39 | 1034 | static int write_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
1035 | |
1036 | static const cmdinfo_t write_cmd = { | |
1037 | .name = "write", | |
1038 | .altname = "w", | |
1039 | .cfunc = write_f, | |
887354bd | 1040 | .perm = BLK_PERM_WRITE, |
797ac58c KW |
1041 | .argmin = 2, |
1042 | .argmax = -1, | |
00e2a04c | 1043 | .args = "[-bcCfnqruz] [-P pattern | -s source_file] off len", |
797ac58c KW |
1044 | .oneline = "writes a number of bytes at a specified offset", |
1045 | .help = write_help, | |
1046 | }; | |
1047 | ||
b32d7a39 | 1048 | static int write_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 1049 | { |
50290c00 | 1050 | struct timespec t1, t2; |
093ea232 | 1051 | bool Cflag = false, qflag = false, bflag = false; |
4d731510 | 1052 | bool Pflag = false, zflag = false, cflag = false, sflag = false; |
1321e008 | 1053 | BdrvRequestFlags flags = 0; |
b32d7a39 | 1054 | int c, cnt, ret; |
797ac58c KW |
1055 | char *buf = NULL; |
1056 | int64_t offset; | |
9b0beaf3 | 1057 | int64_t count; |
797ac58c | 1058 | /* Some compilers get confused and warn if this is not initialized. */ |
9b0beaf3 | 1059 | int64_t total = 0; |
797ac58c | 1060 | int pattern = 0xcd; |
4d731510 | 1061 | const char *file_name = NULL; |
797ac58c | 1062 | |
00e2a04c | 1063 | while ((c = getopt(argc, argv, "bcCfnpP:qrs:uz")) != -1) { |
797ac58c KW |
1064 | switch (c) { |
1065 | case 'b': | |
dc38852a | 1066 | bflag = true; |
797ac58c KW |
1067 | break; |
1068 | case 'c': | |
dc38852a | 1069 | cflag = true; |
797ac58c KW |
1070 | break; |
1071 | case 'C': | |
dc38852a | 1072 | Cflag = true; |
797ac58c | 1073 | break; |
770e0e0e EB |
1074 | case 'f': |
1075 | flags |= BDRV_REQ_FUA; | |
1076 | break; | |
c6e3f520 KW |
1077 | case 'n': |
1078 | flags |= BDRV_REQ_NO_FALLBACK; | |
1079 | break; | |
797ac58c | 1080 | case 'p': |
093ea232 | 1081 | /* Ignored for backwards compatibility */ |
797ac58c KW |
1082 | break; |
1083 | case 'P': | |
dc38852a | 1084 | Pflag = true; |
797ac58c KW |
1085 | pattern = parse_pattern(optarg); |
1086 | if (pattern < 0) { | |
b32d7a39 | 1087 | return -EINVAL; |
797ac58c KW |
1088 | } |
1089 | break; | |
1090 | case 'q': | |
dc38852a | 1091 | qflag = true; |
797ac58c | 1092 | break; |
00e2a04c SH |
1093 | case 'r': |
1094 | flags |= BDRV_REQ_REGISTERED_BUF; | |
1095 | break; | |
4d731510 DP |
1096 | case 's': |
1097 | sflag = true; | |
1098 | file_name = optarg; | |
1099 | break; | |
c2e001cc EB |
1100 | case 'u': |
1101 | flags |= BDRV_REQ_MAY_UNMAP; | |
1102 | break; | |
797ac58c | 1103 | case 'z': |
dc38852a | 1104 | zflag = true; |
797ac58c KW |
1105 | break; |
1106 | default: | |
b444d0e9 | 1107 | qemuio_command_usage(&write_cmd); |
b32d7a39 | 1108 | return -EINVAL; |
797ac58c KW |
1109 | } |
1110 | } | |
1111 | ||
1112 | if (optind != argc - 2) { | |
b444d0e9 | 1113 | qemuio_command_usage(&write_cmd); |
b32d7a39 | 1114 | return -EINVAL; |
797ac58c KW |
1115 | } |
1116 | ||
093ea232 EB |
1117 | if (bflag && zflag) { |
1118 | printf("-b and -z cannot be specified at the same time\n"); | |
b32d7a39 | 1119 | return -EINVAL; |
797ac58c KW |
1120 | } |
1121 | ||
770e0e0e EB |
1122 | if ((flags & BDRV_REQ_FUA) && (bflag || cflag)) { |
1123 | printf("-f and -b or -c cannot be specified at the same time\n"); | |
b32d7a39 | 1124 | return -EINVAL; |
770e0e0e EB |
1125 | } |
1126 | ||
c6e3f520 KW |
1127 | if ((flags & BDRV_REQ_NO_FALLBACK) && !zflag) { |
1128 | printf("-n requires -z to be specified\n"); | |
1129 | return -EINVAL; | |
1130 | } | |
1131 | ||
c2e001cc EB |
1132 | if ((flags & BDRV_REQ_MAY_UNMAP) && !zflag) { |
1133 | printf("-u requires -z to be specified\n"); | |
b32d7a39 | 1134 | return -EINVAL; |
c2e001cc EB |
1135 | } |
1136 | ||
4d731510 DP |
1137 | if (zflag + Pflag + sflag > 1) { |
1138 | printf("Only one of -z, -P, and -s " | |
1139 | "can be specified at the same time\n"); | |
b32d7a39 | 1140 | return -EINVAL; |
797ac58c KW |
1141 | } |
1142 | ||
1143 | offset = cvtnum(argv[optind]); | |
1144 | if (offset < 0) { | |
a9ecfa00 | 1145 | print_cvtnum_err(offset, argv[optind]); |
b32d7a39 | 1146 | return offset; |
797ac58c KW |
1147 | } |
1148 | ||
1149 | optind++; | |
1150 | count = cvtnum(argv[optind]); | |
1151 | if (count < 0) { | |
a9ecfa00 | 1152 | print_cvtnum_err(count, argv[optind]); |
b32d7a39 | 1153 | return count; |
395aecd0 EB |
1154 | } else if (count > BDRV_REQUEST_MAX_BYTES && |
1155 | !(flags & BDRV_REQ_NO_FALLBACK)) { | |
1156 | printf("length cannot exceed %" PRIu64 " without -n, given %s\n", | |
3026c468 | 1157 | (uint64_t)BDRV_REQUEST_MAX_BYTES, argv[optind]); |
b32d7a39 | 1158 | return -EINVAL; |
797ac58c KW |
1159 | } |
1160 | ||
093ea232 | 1161 | if (bflag || cflag) { |
1bce6b4c EB |
1162 | if (!QEMU_IS_ALIGNED(offset, BDRV_SECTOR_SIZE)) { |
1163 | printf("%" PRId64 " is not a sector-aligned value for 'offset'\n", | |
797ac58c | 1164 | offset); |
b32d7a39 | 1165 | return -EINVAL; |
797ac58c KW |
1166 | } |
1167 | ||
1bce6b4c EB |
1168 | if (!QEMU_IS_ALIGNED(count, BDRV_SECTOR_SIZE)) { |
1169 | printf("%"PRId64" is not a sector-aligned value for 'count'\n", | |
797ac58c | 1170 | count); |
b32d7a39 | 1171 | return -EINVAL; |
797ac58c KW |
1172 | } |
1173 | } | |
1174 | ||
00e2a04c SH |
1175 | if (zflag) { |
1176 | if (flags & BDRV_REQ_REGISTERED_BUF) { | |
1177 | printf("cannot combine zero write with registered I/O buffer\n"); | |
1178 | return -EINVAL; | |
1179 | } | |
1180 | } else { | |
4d731510 | 1181 | if (sflag) { |
00e2a04c SH |
1182 | buf = qemu_io_alloc_from_file(blk, count, file_name, |
1183 | flags & BDRV_REQ_REGISTERED_BUF); | |
4d731510 DP |
1184 | if (!buf) { |
1185 | return -EINVAL; | |
1186 | } | |
1187 | } else { | |
00e2a04c SH |
1188 | buf = qemu_io_alloc(blk, count, pattern, |
1189 | flags & BDRV_REQ_REGISTERED_BUF); | |
4d731510 | 1190 | } |
797ac58c KW |
1191 | } |
1192 | ||
50290c00 | 1193 | clock_gettime(CLOCK_MONOTONIC, &t1); |
7b3f9712 | 1194 | if (bflag) { |
b32d7a39 | 1195 | ret = do_save_vmstate(blk, buf, offset, count, &total); |
797ac58c | 1196 | } else if (zflag) { |
264dcbb2 | 1197 | ret = do_pwrite_zeroes(blk, offset, count, flags, &total); |
797ac58c | 1198 | } else if (cflag) { |
b32d7a39 | 1199 | ret = do_write_compressed(blk, buf, offset, count, &total); |
797ac58c | 1200 | } else { |
b32d7a39 | 1201 | ret = do_pwrite(blk, buf, offset, count, flags, &total); |
797ac58c | 1202 | } |
50290c00 | 1203 | clock_gettime(CLOCK_MONOTONIC, &t2); |
797ac58c | 1204 | |
b32d7a39 HR |
1205 | if (ret < 0) { |
1206 | printf("write failed: %s\n", strerror(-ret)); | |
797ac58c KW |
1207 | goto out; |
1208 | } | |
b32d7a39 HR |
1209 | cnt = ret; |
1210 | ||
1211 | ret = 0; | |
797ac58c KW |
1212 | |
1213 | if (qflag) { | |
1214 | goto out; | |
1215 | } | |
1216 | ||
1217 | /* Finally, report back -- -C gives a parsable format */ | |
1218 | t2 = tsub(t2, t1); | |
1219 | print_report("wrote", &t2, offset, count, total, cnt, Cflag); | |
1220 | ||
1221 | out: | |
1222 | if (!zflag) { | |
00e2a04c | 1223 | qemu_io_free(blk, buf, count, flags & BDRV_REQ_REGISTERED_BUF); |
797ac58c | 1224 | } |
b32d7a39 | 1225 | return ret; |
797ac58c KW |
1226 | } |
1227 | ||
1228 | static void | |
1229 | writev_help(void) | |
1230 | { | |
1231 | printf( | |
1232 | "\n" | |
1233 | " writes a range of bytes from the given offset source from multiple buffers\n" | |
1234 | "\n" | |
1235 | " Example:\n" | |
6e6507c0 | 1236 | " 'writev 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" |
797ac58c KW |
1237 | "\n" |
1238 | " Writes into a segment of the currently open file, using a buffer\n" | |
1239 | " filled with a set pattern (0xcdcdcdcd).\n" | |
797ac58c | 1240 | " -C, -- report statistics in a machine parsable format\n" |
770e0e0e | 1241 | " -f, -- use Force Unit Access semantics\n" |
00e2a04c | 1242 | " -P, -- use different pattern to fill file\n" |
797ac58c | 1243 | " -q, -- quiet mode, do not show I/O statistics\n" |
00e2a04c | 1244 | " -r, -- register I/O buffer\n" |
797ac58c KW |
1245 | "\n"); |
1246 | } | |
1247 | ||
b32d7a39 | 1248 | static int writev_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
1249 | |
1250 | static const cmdinfo_t writev_cmd = { | |
1251 | .name = "writev", | |
1252 | .cfunc = writev_f, | |
887354bd | 1253 | .perm = BLK_PERM_WRITE, |
797ac58c KW |
1254 | .argmin = 2, |
1255 | .argmax = -1, | |
00e2a04c | 1256 | .args = "[-Cfqr] [-P pattern] off len [len..]", |
797ac58c KW |
1257 | .oneline = "writes a number of bytes at a specified offset", |
1258 | .help = writev_help, | |
1259 | }; | |
1260 | ||
b32d7a39 | 1261 | static int writev_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 1262 | { |
50290c00 | 1263 | struct timespec t1, t2; |
dc38852a | 1264 | bool Cflag = false, qflag = false; |
1321e008 | 1265 | BdrvRequestFlags flags = 0; |
b32d7a39 | 1266 | int c, cnt, ret; |
797ac58c KW |
1267 | char *buf; |
1268 | int64_t offset; | |
1269 | /* Some compilers get confused and warn if this is not initialized. */ | |
1270 | int total = 0; | |
1271 | int nr_iov; | |
1272 | int pattern = 0xcd; | |
1273 | QEMUIOVector qiov; | |
1274 | ||
00e2a04c | 1275 | while ((c = getopt(argc, argv, "CfP:qr")) != -1) { |
797ac58c KW |
1276 | switch (c) { |
1277 | case 'C': | |
dc38852a | 1278 | Cflag = true; |
797ac58c | 1279 | break; |
770e0e0e EB |
1280 | case 'f': |
1281 | flags |= BDRV_REQ_FUA; | |
1282 | break; | |
797ac58c | 1283 | case 'q': |
dc38852a | 1284 | qflag = true; |
797ac58c | 1285 | break; |
00e2a04c SH |
1286 | case 'r': |
1287 | flags |= BDRV_REQ_REGISTERED_BUF; | |
1288 | break; | |
797ac58c KW |
1289 | case 'P': |
1290 | pattern = parse_pattern(optarg); | |
1291 | if (pattern < 0) { | |
b32d7a39 | 1292 | return -EINVAL; |
797ac58c KW |
1293 | } |
1294 | break; | |
1295 | default: | |
b444d0e9 | 1296 | qemuio_command_usage(&writev_cmd); |
b32d7a39 | 1297 | return -EINVAL; |
797ac58c KW |
1298 | } |
1299 | } | |
1300 | ||
1301 | if (optind > argc - 2) { | |
b444d0e9 | 1302 | qemuio_command_usage(&writev_cmd); |
b32d7a39 | 1303 | return -EINVAL; |
797ac58c KW |
1304 | } |
1305 | ||
1306 | offset = cvtnum(argv[optind]); | |
1307 | if (offset < 0) { | |
a9ecfa00 | 1308 | print_cvtnum_err(offset, argv[optind]); |
b32d7a39 | 1309 | return offset; |
797ac58c KW |
1310 | } |
1311 | optind++; | |
1312 | ||
797ac58c | 1313 | nr_iov = argc - optind; |
00e2a04c SH |
1314 | buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, pattern, |
1315 | flags & BDRV_REQ_REGISTERED_BUF); | |
797ac58c | 1316 | if (buf == NULL) { |
b32d7a39 | 1317 | return -EINVAL; |
797ac58c KW |
1318 | } |
1319 | ||
50290c00 | 1320 | clock_gettime(CLOCK_MONOTONIC, &t1); |
b32d7a39 | 1321 | ret = do_aio_writev(blk, &qiov, offset, flags, &total); |
50290c00 | 1322 | clock_gettime(CLOCK_MONOTONIC, &t2); |
797ac58c | 1323 | |
b32d7a39 HR |
1324 | if (ret < 0) { |
1325 | printf("writev failed: %s\n", strerror(-ret)); | |
797ac58c KW |
1326 | goto out; |
1327 | } | |
b32d7a39 HR |
1328 | cnt = ret; |
1329 | ||
1330 | ret = 0; | |
797ac58c KW |
1331 | |
1332 | if (qflag) { | |
1333 | goto out; | |
1334 | } | |
1335 | ||
1336 | /* Finally, report back -- -C gives a parsable format */ | |
1337 | t2 = tsub(t2, t1); | |
1338 | print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag); | |
1339 | out: | |
00e2a04c | 1340 | qemu_io_free(blk, buf, qiov.size, flags & BDRV_REQ_REGISTERED_BUF); |
797ac58c | 1341 | qemu_iovec_destroy(&qiov); |
b32d7a39 | 1342 | return ret; |
797ac58c KW |
1343 | } |
1344 | ||
797ac58c | 1345 | struct aio_ctx { |
4c7b7e9b | 1346 | BlockBackend *blk; |
797ac58c KW |
1347 | QEMUIOVector qiov; |
1348 | int64_t offset; | |
1349 | char *buf; | |
dc38852a EB |
1350 | bool qflag; |
1351 | bool vflag; | |
1352 | bool Cflag; | |
1353 | bool Pflag; | |
1354 | bool zflag; | |
a91f9584 | 1355 | BlockAcctCookie acct; |
797ac58c | 1356 | int pattern; |
00e2a04c | 1357 | BdrvRequestFlags flags; |
50290c00 | 1358 | struct timespec t1; |
797ac58c KW |
1359 | }; |
1360 | ||
1361 | static void aio_write_done(void *opaque, int ret) | |
1362 | { | |
1363 | struct aio_ctx *ctx = opaque; | |
50290c00 | 1364 | struct timespec t2; |
797ac58c | 1365 | |
50290c00 | 1366 | clock_gettime(CLOCK_MONOTONIC, &t2); |
797ac58c KW |
1367 | |
1368 | ||
1369 | if (ret < 0) { | |
1370 | printf("aio_write failed: %s\n", strerror(-ret)); | |
556c2b60 | 1371 | block_acct_failed(blk_get_stats(ctx->blk), &ctx->acct); |
797ac58c KW |
1372 | goto out; |
1373 | } | |
1374 | ||
4c7b7e9b | 1375 | block_acct_done(blk_get_stats(ctx->blk), &ctx->acct); |
a91f9584 | 1376 | |
797ac58c KW |
1377 | if (ctx->qflag) { |
1378 | goto out; | |
1379 | } | |
1380 | ||
1381 | /* Finally, report back -- -C gives a parsable format */ | |
1382 | t2 = tsub(t2, ctx->t1); | |
1383 | print_report("wrote", &t2, ctx->offset, ctx->qiov.size, | |
1384 | ctx->qiov.size, 1, ctx->Cflag); | |
1385 | out: | |
5ceb7765 | 1386 | if (!ctx->zflag) { |
00e2a04c SH |
1387 | qemu_io_free(ctx->blk, ctx->buf, ctx->qiov.size, |
1388 | ctx->flags & BDRV_REQ_REGISTERED_BUF); | |
5ceb7765 KW |
1389 | qemu_iovec_destroy(&ctx->qiov); |
1390 | } | |
797ac58c KW |
1391 | g_free(ctx); |
1392 | } | |
1393 | ||
1394 | static void aio_read_done(void *opaque, int ret) | |
1395 | { | |
1396 | struct aio_ctx *ctx = opaque; | |
50290c00 | 1397 | struct timespec t2; |
797ac58c | 1398 | |
50290c00 | 1399 | clock_gettime(CLOCK_MONOTONIC, &t2); |
797ac58c KW |
1400 | |
1401 | if (ret < 0) { | |
1402 | printf("readv failed: %s\n", strerror(-ret)); | |
556c2b60 | 1403 | block_acct_failed(blk_get_stats(ctx->blk), &ctx->acct); |
797ac58c KW |
1404 | goto out; |
1405 | } | |
1406 | ||
1407 | if (ctx->Pflag) { | |
1408 | void *cmp_buf = g_malloc(ctx->qiov.size); | |
1409 | ||
1410 | memset(cmp_buf, ctx->pattern, ctx->qiov.size); | |
1411 | if (memcmp(ctx->buf, cmp_buf, ctx->qiov.size)) { | |
1412 | printf("Pattern verification failed at offset %" | |
cf67b692 | 1413 | PRId64 ", %zu bytes\n", ctx->offset, ctx->qiov.size); |
797ac58c KW |
1414 | } |
1415 | g_free(cmp_buf); | |
1416 | } | |
1417 | ||
4c7b7e9b | 1418 | block_acct_done(blk_get_stats(ctx->blk), &ctx->acct); |
a91f9584 | 1419 | |
797ac58c KW |
1420 | if (ctx->qflag) { |
1421 | goto out; | |
1422 | } | |
1423 | ||
1424 | if (ctx->vflag) { | |
1425 | dump_buffer(ctx->buf, ctx->offset, ctx->qiov.size); | |
1426 | } | |
1427 | ||
1428 | /* Finally, report back -- -C gives a parsable format */ | |
1429 | t2 = tsub(t2, ctx->t1); | |
1430 | print_report("read", &t2, ctx->offset, ctx->qiov.size, | |
1431 | ctx->qiov.size, 1, ctx->Cflag); | |
1432 | out: | |
00e2a04c SH |
1433 | qemu_io_free(ctx->blk, ctx->buf, ctx->qiov.size, |
1434 | ctx->flags & BDRV_REQ_REGISTERED_BUF); | |
797ac58c KW |
1435 | qemu_iovec_destroy(&ctx->qiov); |
1436 | g_free(ctx); | |
1437 | } | |
1438 | ||
1439 | static void aio_read_help(void) | |
1440 | { | |
1441 | printf( | |
1442 | "\n" | |
1443 | " asynchronously reads a range of bytes from the given offset\n" | |
1444 | "\n" | |
1445 | " Example:\n" | |
1446 | " 'aio_read -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" | |
1447 | "\n" | |
1448 | " Reads a segment of the currently open file, optionally dumping it to the\n" | |
1449 | " standard output stream (with -v option) for subsequent inspection.\n" | |
1450 | " The read is performed asynchronously and the aio_flush command must be\n" | |
1451 | " used to ensure all outstanding aio requests have been completed.\n" | |
b32d7a39 HR |
1452 | " Note that due to its asynchronous nature, this command will be\n" |
1453 | " considered successful once the request is submitted, independently\n" | |
1454 | " of potential I/O errors or pattern mismatches.\n" | |
797ac58c | 1455 | " -C, -- report statistics in a machine parsable format\n" |
37546ff2 | 1456 | " -i, -- treat request as invalid, for exercising stats\n" |
00e2a04c | 1457 | " -P, -- use a pattern to verify read data\n" |
797ac58c | 1458 | " -q, -- quiet mode, do not show I/O statistics\n" |
00e2a04c SH |
1459 | " -r, -- register I/O buffer\n" |
1460 | " -v, -- dump buffer to standard output\n" | |
797ac58c KW |
1461 | "\n"); |
1462 | } | |
1463 | ||
b32d7a39 | 1464 | static int aio_read_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
1465 | |
1466 | static const cmdinfo_t aio_read_cmd = { | |
1467 | .name = "aio_read", | |
1468 | .cfunc = aio_read_f, | |
1469 | .argmin = 2, | |
1470 | .argmax = -1, | |
00e2a04c | 1471 | .args = "[-Ciqrv] [-P pattern] off len [len..]", |
797ac58c KW |
1472 | .oneline = "asynchronously reads a number of bytes", |
1473 | .help = aio_read_help, | |
1474 | }; | |
1475 | ||
b32d7a39 | 1476 | static int aio_read_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
1477 | { |
1478 | int nr_iov, c; | |
1479 | struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); | |
1480 | ||
4c7b7e9b | 1481 | ctx->blk = blk; |
00e2a04c | 1482 | while ((c = getopt(argc, argv, "CiP:qrv")) != -1) { |
797ac58c KW |
1483 | switch (c) { |
1484 | case 'C': | |
dc38852a | 1485 | ctx->Cflag = true; |
797ac58c KW |
1486 | break; |
1487 | case 'P': | |
dc38852a | 1488 | ctx->Pflag = true; |
797ac58c KW |
1489 | ctx->pattern = parse_pattern(optarg); |
1490 | if (ctx->pattern < 0) { | |
1491 | g_free(ctx); | |
b32d7a39 | 1492 | return -EINVAL; |
797ac58c KW |
1493 | } |
1494 | break; | |
37546ff2 EB |
1495 | case 'i': |
1496 | printf("injecting invalid read request\n"); | |
1497 | block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_READ); | |
1498 | g_free(ctx); | |
b32d7a39 | 1499 | return 0; |
797ac58c | 1500 | case 'q': |
dc38852a | 1501 | ctx->qflag = true; |
797ac58c | 1502 | break; |
00e2a04c SH |
1503 | case 'r': |
1504 | ctx->flags |= BDRV_REQ_REGISTERED_BUF; | |
1505 | break; | |
797ac58c | 1506 | case 'v': |
dc38852a | 1507 | ctx->vflag = true; |
797ac58c KW |
1508 | break; |
1509 | default: | |
1510 | g_free(ctx); | |
b444d0e9 | 1511 | qemuio_command_usage(&aio_read_cmd); |
b32d7a39 | 1512 | return -EINVAL; |
797ac58c KW |
1513 | } |
1514 | } | |
1515 | ||
1516 | if (optind > argc - 2) { | |
1517 | g_free(ctx); | |
b444d0e9 | 1518 | qemuio_command_usage(&aio_read_cmd); |
b32d7a39 | 1519 | return -EINVAL; |
797ac58c KW |
1520 | } |
1521 | ||
1522 | ctx->offset = cvtnum(argv[optind]); | |
1523 | if (ctx->offset < 0) { | |
b32d7a39 HR |
1524 | int ret = ctx->offset; |
1525 | print_cvtnum_err(ret, argv[optind]); | |
797ac58c | 1526 | g_free(ctx); |
b32d7a39 | 1527 | return ret; |
797ac58c KW |
1528 | } |
1529 | optind++; | |
1530 | ||
797ac58c | 1531 | nr_iov = argc - optind; |
00e2a04c SH |
1532 | ctx->buf = create_iovec(blk, &ctx->qiov, &argv[optind], nr_iov, 0xab, |
1533 | ctx->flags & BDRV_REQ_REGISTERED_BUF); | |
797ac58c | 1534 | if (ctx->buf == NULL) { |
556c2b60 | 1535 | block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_READ); |
797ac58c | 1536 | g_free(ctx); |
b32d7a39 | 1537 | return -EINVAL; |
797ac58c KW |
1538 | } |
1539 | ||
50290c00 | 1540 | clock_gettime(CLOCK_MONOTONIC, &ctx->t1); |
4c7b7e9b HR |
1541 | block_acct_start(blk_get_stats(blk), &ctx->acct, ctx->qiov.size, |
1542 | BLOCK_ACCT_READ); | |
00e2a04c SH |
1543 | blk_aio_preadv(blk, ctx->offset, &ctx->qiov, ctx->flags, aio_read_done, |
1544 | ctx); | |
b32d7a39 | 1545 | return 0; |
797ac58c KW |
1546 | } |
1547 | ||
1548 | static void aio_write_help(void) | |
1549 | { | |
1550 | printf( | |
1551 | "\n" | |
1552 | " asynchronously writes a range of bytes from the given offset source\n" | |
1553 | " from multiple buffers\n" | |
1554 | "\n" | |
1555 | " Example:\n" | |
1556 | " 'aio_write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" | |
1557 | "\n" | |
1558 | " Writes into a segment of the currently open file, using a buffer\n" | |
1559 | " filled with a set pattern (0xcdcdcdcd).\n" | |
1560 | " The write is performed asynchronously and the aio_flush command must be\n" | |
1561 | " used to ensure all outstanding aio requests have been completed.\n" | |
b32d7a39 HR |
1562 | " Note that due to its asynchronous nature, this command will be\n" |
1563 | " considered successful once the request is submitted, independently\n" | |
1564 | " of potential I/O errors or pattern mismatches.\n" | |
797ac58c | 1565 | " -C, -- report statistics in a machine parsable format\n" |
770e0e0e | 1566 | " -f, -- use Force Unit Access semantics\n" |
37546ff2 | 1567 | " -i, -- treat request as invalid, for exercising stats\n" |
00e2a04c | 1568 | " -P, -- use different pattern to fill file\n" |
797ac58c | 1569 | " -q, -- quiet mode, do not show I/O statistics\n" |
00e2a04c | 1570 | " -r, -- register I/O buffer\n" |
c2e001cc | 1571 | " -u, -- with -z, allow unmapping\n" |
d004bd52 | 1572 | " -z, -- write zeroes using blk_aio_pwrite_zeroes\n" |
797ac58c KW |
1573 | "\n"); |
1574 | } | |
1575 | ||
b32d7a39 | 1576 | static int aio_write_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
1577 | |
1578 | static const cmdinfo_t aio_write_cmd = { | |
1579 | .name = "aio_write", | |
1580 | .cfunc = aio_write_f, | |
887354bd | 1581 | .perm = BLK_PERM_WRITE, |
797ac58c KW |
1582 | .argmin = 2, |
1583 | .argmax = -1, | |
00e2a04c | 1584 | .args = "[-Cfiqruz] [-P pattern] off len [len..]", |
797ac58c KW |
1585 | .oneline = "asynchronously writes a number of bytes", |
1586 | .help = aio_write_help, | |
1587 | }; | |
1588 | ||
b32d7a39 | 1589 | static int aio_write_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
1590 | { |
1591 | int nr_iov, c; | |
1592 | int pattern = 0xcd; | |
1593 | struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); | |
1594 | ||
4c7b7e9b | 1595 | ctx->blk = blk; |
00e2a04c | 1596 | while ((c = getopt(argc, argv, "CfiP:qruz")) != -1) { |
797ac58c KW |
1597 | switch (c) { |
1598 | case 'C': | |
dc38852a | 1599 | ctx->Cflag = true; |
797ac58c | 1600 | break; |
770e0e0e | 1601 | case 'f': |
00e2a04c | 1602 | ctx->flags |= BDRV_REQ_FUA; |
770e0e0e | 1603 | break; |
797ac58c | 1604 | case 'q': |
dc38852a | 1605 | ctx->qflag = true; |
797ac58c | 1606 | break; |
00e2a04c SH |
1607 | case 'r': |
1608 | ctx->flags |= BDRV_REQ_REGISTERED_BUF; | |
1609 | break; | |
c2e001cc | 1610 | case 'u': |
00e2a04c | 1611 | ctx->flags |= BDRV_REQ_MAY_UNMAP; |
c2e001cc | 1612 | break; |
797ac58c KW |
1613 | case 'P': |
1614 | pattern = parse_pattern(optarg); | |
1615 | if (pattern < 0) { | |
1616 | g_free(ctx); | |
b32d7a39 | 1617 | return -EINVAL; |
797ac58c KW |
1618 | } |
1619 | break; | |
37546ff2 EB |
1620 | case 'i': |
1621 | printf("injecting invalid write request\n"); | |
1622 | block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_WRITE); | |
1623 | g_free(ctx); | |
b32d7a39 | 1624 | return 0; |
5ceb7765 | 1625 | case 'z': |
dc38852a | 1626 | ctx->zflag = true; |
5ceb7765 | 1627 | break; |
797ac58c KW |
1628 | default: |
1629 | g_free(ctx); | |
b444d0e9 | 1630 | qemuio_command_usage(&aio_write_cmd); |
b32d7a39 | 1631 | return -EINVAL; |
797ac58c KW |
1632 | } |
1633 | } | |
1634 | ||
1635 | if (optind > argc - 2) { | |
1636 | g_free(ctx); | |
b444d0e9 | 1637 | qemuio_command_usage(&aio_write_cmd); |
b32d7a39 | 1638 | return -EINVAL; |
797ac58c KW |
1639 | } |
1640 | ||
5ceb7765 KW |
1641 | if (ctx->zflag && optind != argc - 2) { |
1642 | printf("-z supports only a single length parameter\n"); | |
1643 | g_free(ctx); | |
b32d7a39 | 1644 | return -EINVAL; |
5ceb7765 KW |
1645 | } |
1646 | ||
00e2a04c | 1647 | if ((ctx->flags & BDRV_REQ_MAY_UNMAP) && !ctx->zflag) { |
c2e001cc | 1648 | printf("-u requires -z to be specified\n"); |
4ca1d340 | 1649 | g_free(ctx); |
b32d7a39 | 1650 | return -EINVAL; |
c2e001cc EB |
1651 | } |
1652 | ||
5ceb7765 KW |
1653 | if (ctx->zflag && ctx->Pflag) { |
1654 | printf("-z and -P cannot be specified at the same time\n"); | |
1655 | g_free(ctx); | |
b32d7a39 | 1656 | return -EINVAL; |
5ceb7765 KW |
1657 | } |
1658 | ||
00e2a04c SH |
1659 | if (ctx->zflag && (ctx->flags & BDRV_REQ_REGISTERED_BUF)) { |
1660 | printf("cannot combine zero write with registered I/O buffer\n"); | |
1661 | g_free(ctx); | |
1662 | return -EINVAL; | |
1663 | } | |
1664 | ||
797ac58c KW |
1665 | ctx->offset = cvtnum(argv[optind]); |
1666 | if (ctx->offset < 0) { | |
b32d7a39 HR |
1667 | int ret = ctx->offset; |
1668 | print_cvtnum_err(ret, argv[optind]); | |
797ac58c | 1669 | g_free(ctx); |
b32d7a39 | 1670 | return ret; |
797ac58c KW |
1671 | } |
1672 | optind++; | |
1673 | ||
5ceb7765 KW |
1674 | if (ctx->zflag) { |
1675 | int64_t count = cvtnum(argv[optind]); | |
1676 | if (count < 0) { | |
1677 | print_cvtnum_err(count, argv[optind]); | |
0e01b76e | 1678 | g_free(ctx); |
b32d7a39 | 1679 | return count; |
5ceb7765 | 1680 | } |
797ac58c | 1681 | |
5ceb7765 | 1682 | ctx->qiov.size = count; |
00e2a04c SH |
1683 | blk_aio_pwrite_zeroes(blk, ctx->offset, count, ctx->flags, |
1684 | aio_write_done, ctx); | |
5ceb7765 KW |
1685 | } else { |
1686 | nr_iov = argc - optind; | |
1687 | ctx->buf = create_iovec(blk, &ctx->qiov, &argv[optind], nr_iov, | |
00e2a04c | 1688 | pattern, ctx->flags & BDRV_REQ_REGISTERED_BUF); |
5ceb7765 KW |
1689 | if (ctx->buf == NULL) { |
1690 | block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_WRITE); | |
1691 | g_free(ctx); | |
b32d7a39 | 1692 | return -EINVAL; |
5ceb7765 KW |
1693 | } |
1694 | ||
50290c00 | 1695 | clock_gettime(CLOCK_MONOTONIC, &ctx->t1); |
5ceb7765 KW |
1696 | block_acct_start(blk_get_stats(blk), &ctx->acct, ctx->qiov.size, |
1697 | BLOCK_ACCT_WRITE); | |
1698 | ||
00e2a04c SH |
1699 | blk_aio_pwritev(blk, ctx->offset, &ctx->qiov, ctx->flags, |
1700 | aio_write_done, ctx); | |
5ceb7765 | 1701 | } |
b32d7a39 HR |
1702 | |
1703 | return 0; | |
797ac58c KW |
1704 | } |
1705 | ||
b32d7a39 | 1706 | static int aio_flush_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 1707 | { |
556c2b60 AG |
1708 | BlockAcctCookie cookie; |
1709 | block_acct_start(blk_get_stats(blk), &cookie, 0, BLOCK_ACCT_FLUSH); | |
4c7b7e9b | 1710 | blk_drain_all(); |
556c2b60 | 1711 | block_acct_done(blk_get_stats(blk), &cookie); |
b32d7a39 | 1712 | return 0; |
797ac58c KW |
1713 | } |
1714 | ||
1715 | static const cmdinfo_t aio_flush_cmd = { | |
1716 | .name = "aio_flush", | |
1717 | .cfunc = aio_flush_f, | |
1718 | .oneline = "completes all outstanding aio requests" | |
1719 | }; | |
1720 | ||
b32d7a39 | 1721 | static int flush_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 1722 | { |
b32d7a39 | 1723 | return blk_flush(blk); |
797ac58c KW |
1724 | } |
1725 | ||
1726 | static const cmdinfo_t flush_cmd = { | |
1727 | .name = "flush", | |
1728 | .altname = "f", | |
1729 | .cfunc = flush_f, | |
1730 | .oneline = "flush all in-core file state to disk", | |
1731 | }; | |
1732 | ||
6d43eaa3 SL |
1733 | static inline int64_t tosector(int64_t bytes) |
1734 | { | |
1735 | return bytes >> BDRV_SECTOR_BITS; | |
1736 | } | |
1737 | ||
1738 | static int zone_report_f(BlockBackend *blk, int argc, char **argv) | |
1739 | { | |
1740 | int ret; | |
1741 | int64_t offset; | |
1742 | unsigned int nr_zones; | |
1743 | ||
1744 | ++optind; | |
1745 | offset = cvtnum(argv[optind]); | |
1746 | ++optind; | |
1747 | nr_zones = cvtnum(argv[optind]); | |
1748 | ||
1749 | g_autofree BlockZoneDescriptor *zones = NULL; | |
1750 | zones = g_new(BlockZoneDescriptor, nr_zones); | |
1751 | ret = blk_zone_report(blk, offset, &nr_zones, zones); | |
1752 | if (ret < 0) { | |
1753 | printf("zone report failed: %s\n", strerror(-ret)); | |
1754 | } else { | |
1755 | for (int i = 0; i < nr_zones; ++i) { | |
1756 | printf("start: 0x%" PRIx64 ", len 0x%" PRIx64 ", " | |
1757 | "cap"" 0x%" PRIx64 ", wptr 0x%" PRIx64 ", " | |
1758 | "zcond:%u, [type: %u]\n", | |
1759 | tosector(zones[i].start), tosector(zones[i].length), | |
1760 | tosector(zones[i].cap), tosector(zones[i].wp), | |
1761 | zones[i].state, zones[i].type); | |
1762 | } | |
1763 | } | |
1764 | return ret; | |
1765 | } | |
1766 | ||
1767 | static const cmdinfo_t zone_report_cmd = { | |
1768 | .name = "zone_report", | |
1769 | .altname = "zrp", | |
1770 | .cfunc = zone_report_f, | |
1771 | .argmin = 2, | |
1772 | .argmax = 2, | |
1773 | .args = "offset number", | |
1774 | .oneline = "report zone information", | |
1775 | }; | |
1776 | ||
1777 | static int zone_open_f(BlockBackend *blk, int argc, char **argv) | |
1778 | { | |
1779 | int ret; | |
1780 | int64_t offset, len; | |
1781 | ++optind; | |
1782 | offset = cvtnum(argv[optind]); | |
1783 | ++optind; | |
1784 | len = cvtnum(argv[optind]); | |
1785 | ret = blk_zone_mgmt(blk, BLK_ZO_OPEN, offset, len); | |
1786 | if (ret < 0) { | |
1787 | printf("zone open failed: %s\n", strerror(-ret)); | |
1788 | } | |
1789 | return ret; | |
1790 | } | |
1791 | ||
1792 | static const cmdinfo_t zone_open_cmd = { | |
1793 | .name = "zone_open", | |
1794 | .altname = "zo", | |
1795 | .cfunc = zone_open_f, | |
1796 | .argmin = 2, | |
1797 | .argmax = 2, | |
1798 | .args = "offset len", | |
1799 | .oneline = "explicit open a range of zones in zone block device", | |
1800 | }; | |
1801 | ||
1802 | static int zone_close_f(BlockBackend *blk, int argc, char **argv) | |
1803 | { | |
1804 | int ret; | |
1805 | int64_t offset, len; | |
1806 | ++optind; | |
1807 | offset = cvtnum(argv[optind]); | |
1808 | ++optind; | |
1809 | len = cvtnum(argv[optind]); | |
1810 | ret = blk_zone_mgmt(blk, BLK_ZO_CLOSE, offset, len); | |
1811 | if (ret < 0) { | |
1812 | printf("zone close failed: %s\n", strerror(-ret)); | |
1813 | } | |
1814 | return ret; | |
1815 | } | |
1816 | ||
1817 | static const cmdinfo_t zone_close_cmd = { | |
1818 | .name = "zone_close", | |
1819 | .altname = "zc", | |
1820 | .cfunc = zone_close_f, | |
1821 | .argmin = 2, | |
1822 | .argmax = 2, | |
1823 | .args = "offset len", | |
1824 | .oneline = "close a range of zones in zone block device", | |
1825 | }; | |
1826 | ||
1827 | static int zone_finish_f(BlockBackend *blk, int argc, char **argv) | |
1828 | { | |
1829 | int ret; | |
1830 | int64_t offset, len; | |
1831 | ++optind; | |
1832 | offset = cvtnum(argv[optind]); | |
1833 | ++optind; | |
1834 | len = cvtnum(argv[optind]); | |
1835 | ret = blk_zone_mgmt(blk, BLK_ZO_FINISH, offset, len); | |
1836 | if (ret < 0) { | |
1837 | printf("zone finish failed: %s\n", strerror(-ret)); | |
1838 | } | |
1839 | return ret; | |
1840 | } | |
1841 | ||
1842 | static const cmdinfo_t zone_finish_cmd = { | |
1843 | .name = "zone_finish", | |
1844 | .altname = "zf", | |
1845 | .cfunc = zone_finish_f, | |
1846 | .argmin = 2, | |
1847 | .argmax = 2, | |
1848 | .args = "offset len", | |
1849 | .oneline = "finish a range of zones in zone block device", | |
1850 | }; | |
1851 | ||
1852 | static int zone_reset_f(BlockBackend *blk, int argc, char **argv) | |
1853 | { | |
1854 | int ret; | |
1855 | int64_t offset, len; | |
1856 | ++optind; | |
1857 | offset = cvtnum(argv[optind]); | |
1858 | ++optind; | |
1859 | len = cvtnum(argv[optind]); | |
1860 | ret = blk_zone_mgmt(blk, BLK_ZO_RESET, offset, len); | |
1861 | if (ret < 0) { | |
1862 | printf("zone reset failed: %s\n", strerror(-ret)); | |
1863 | } | |
1864 | return ret; | |
1865 | } | |
1866 | ||
1867 | static const cmdinfo_t zone_reset_cmd = { | |
1868 | .name = "zone_reset", | |
1869 | .altname = "zrs", | |
1870 | .cfunc = zone_reset_f, | |
1871 | .argmin = 2, | |
1872 | .argmax = 2, | |
1873 | .args = "offset len", | |
1874 | .oneline = "reset a zone write pointer in zone block device", | |
1875 | }; | |
1876 | ||
fe4fe70d SL |
1877 | static int do_aio_zone_append(BlockBackend *blk, QEMUIOVector *qiov, |
1878 | int64_t *offset, int flags, int *total) | |
1879 | { | |
1880 | int async_ret = NOT_DONE; | |
1881 | ||
1882 | blk_aio_zone_append(blk, offset, qiov, flags, aio_rw_done, &async_ret); | |
1883 | while (async_ret == NOT_DONE) { | |
1884 | main_loop_wait(false); | |
1885 | } | |
1886 | ||
1887 | *total = qiov->size; | |
1888 | return async_ret < 0 ? async_ret : 1; | |
1889 | } | |
1890 | ||
1891 | static int zone_append_f(BlockBackend *blk, int argc, char **argv) | |
1892 | { | |
1893 | int ret; | |
1894 | bool pflag = false; | |
1895 | int flags = 0; | |
1896 | int total = 0; | |
1897 | int64_t offset; | |
1898 | char *buf; | |
1899 | int c, nr_iov; | |
1900 | int pattern = 0xcd; | |
1901 | QEMUIOVector qiov; | |
1902 | ||
1903 | if (optind > argc - 3) { | |
1904 | return -EINVAL; | |
1905 | } | |
1906 | ||
1907 | if ((c = getopt(argc, argv, "p")) != -1) { | |
1908 | pflag = true; | |
1909 | } | |
1910 | ||
1911 | offset = cvtnum(argv[optind]); | |
1912 | if (offset < 0) { | |
1913 | print_cvtnum_err(offset, argv[optind]); | |
1914 | return offset; | |
1915 | } | |
1916 | optind++; | |
1917 | nr_iov = argc - optind; | |
1918 | buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, pattern, | |
1919 | flags & BDRV_REQ_REGISTERED_BUF); | |
1920 | if (buf == NULL) { | |
1921 | return -EINVAL; | |
1922 | } | |
1923 | ret = do_aio_zone_append(blk, &qiov, &offset, flags, &total); | |
1924 | if (ret < 0) { | |
1925 | printf("zone append failed: %s\n", strerror(-ret)); | |
1926 | goto out; | |
1927 | } | |
1928 | ||
1929 | if (pflag) { | |
1930 | printf("After zap done, the append sector is 0x%" PRIx64 "\n", | |
1931 | tosector(offset)); | |
1932 | } | |
1933 | ||
1934 | out: | |
1935 | qemu_io_free(blk, buf, qiov.size, | |
1936 | flags & BDRV_REQ_REGISTERED_BUF); | |
1937 | qemu_iovec_destroy(&qiov); | |
1938 | return ret; | |
1939 | } | |
1940 | ||
1941 | static const cmdinfo_t zone_append_cmd = { | |
1942 | .name = "zone_append", | |
1943 | .altname = "zap", | |
1944 | .cfunc = zone_append_f, | |
1945 | .argmin = 3, | |
1946 | .argmax = 4, | |
1947 | .args = "offset len [len..]", | |
1948 | .oneline = "append write a number of bytes at a specified offset", | |
1949 | }; | |
1950 | ||
42ba0225 VSO |
1951 | static int truncate_f(BlockBackend *blk, int argc, char **argv); |
1952 | static const cmdinfo_t truncate_cmd = { | |
1953 | .name = "truncate", | |
1954 | .altname = "t", | |
1955 | .cfunc = truncate_f, | |
1956 | .perm = BLK_PERM_WRITE | BLK_PERM_RESIZE, | |
1957 | .argmin = 1, | |
1958 | .argmax = 3, | |
1959 | .args = "[-m prealloc_mode] off", | |
1960 | .oneline = "truncates the current file at the given offset", | |
1961 | }; | |
1962 | ||
b32d7a39 | 1963 | static int truncate_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 1964 | { |
ed3d2ec9 | 1965 | Error *local_err = NULL; |
797ac58c | 1966 | int64_t offset; |
42ba0225 VSO |
1967 | int c, ret; |
1968 | PreallocMode prealloc = PREALLOC_MODE_OFF; | |
797ac58c | 1969 | |
42ba0225 VSO |
1970 | while ((c = getopt(argc, argv, "m:")) != -1) { |
1971 | switch (c) { | |
1972 | case 'm': | |
1973 | prealloc = qapi_enum_parse(&PreallocMode_lookup, optarg, | |
1974 | PREALLOC_MODE__MAX, NULL); | |
1975 | if (prealloc == PREALLOC_MODE__MAX) { | |
1976 | error_report("Invalid preallocation mode '%s'", optarg); | |
1977 | return -EINVAL; | |
1978 | } | |
1979 | break; | |
1980 | default: | |
1981 | qemuio_command_usage(&truncate_cmd); | |
1982 | return -EINVAL; | |
1983 | } | |
1984 | } | |
1985 | ||
1986 | offset = cvtnum(argv[optind]); | |
797ac58c | 1987 | if (offset < 0) { |
a9ecfa00 | 1988 | print_cvtnum_err(offset, argv[1]); |
b32d7a39 | 1989 | return offset; |
797ac58c KW |
1990 | } |
1991 | ||
e8d04f92 HR |
1992 | /* |
1993 | * qemu-io is a debugging tool, so let us be strict here and pass | |
1994 | * exact=true. It is better to err on the "emit more errors" side | |
1995 | * than to be overly permissive. | |
1996 | */ | |
42ba0225 | 1997 | ret = blk_truncate(blk, offset, false, prealloc, 0, &local_err); |
797ac58c | 1998 | if (ret < 0) { |
ed3d2ec9 | 1999 | error_report_err(local_err); |
b32d7a39 | 2000 | return ret; |
797ac58c | 2001 | } |
b32d7a39 HR |
2002 | |
2003 | return 0; | |
797ac58c KW |
2004 | } |
2005 | ||
b32d7a39 | 2006 | static int length_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
2007 | { |
2008 | int64_t size; | |
2009 | char s1[64]; | |
2010 | ||
4c7b7e9b | 2011 | size = blk_getlength(blk); |
797ac58c KW |
2012 | if (size < 0) { |
2013 | printf("getlength: %s\n", strerror(-size)); | |
b32d7a39 | 2014 | return size; |
797ac58c KW |
2015 | } |
2016 | ||
2017 | cvtstr(size, s1, sizeof(s1)); | |
2018 | printf("%s\n", s1); | |
b32d7a39 | 2019 | return 0; |
797ac58c KW |
2020 | } |
2021 | ||
2022 | ||
2023 | static const cmdinfo_t length_cmd = { | |
2024 | .name = "length", | |
2025 | .altname = "l", | |
2026 | .cfunc = length_f, | |
2027 | .oneline = "gets the length of the current file", | |
2028 | }; | |
2029 | ||
2030 | ||
b32d7a39 | 2031 | static int info_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 2032 | { |
4c7b7e9b | 2033 | BlockDriverState *bs = blk_bs(blk); |
797ac58c | 2034 | BlockDriverInfo bdi; |
a8d8ecb7 | 2035 | ImageInfoSpecific *spec_info; |
1bf6e9ca | 2036 | Error *local_err = NULL; |
797ac58c KW |
2037 | char s1[64], s2[64]; |
2038 | int ret; | |
2039 | ||
3574499a KW |
2040 | GLOBAL_STATE_CODE(); |
2041 | GRAPH_RDLOCK_GUARD_MAINLOOP(); | |
2042 | ||
797ac58c KW |
2043 | if (bs->drv && bs->drv->format_name) { |
2044 | printf("format name: %s\n", bs->drv->format_name); | |
2045 | } | |
2046 | if (bs->drv && bs->drv->protocol_name) { | |
2047 | printf("format name: %s\n", bs->drv->protocol_name); | |
2048 | } | |
2049 | ||
2050 | ret = bdrv_get_info(bs, &bdi); | |
2051 | if (ret) { | |
b32d7a39 | 2052 | return ret; |
797ac58c KW |
2053 | } |
2054 | ||
2055 | cvtstr(bdi.cluster_size, s1, sizeof(s1)); | |
2056 | cvtstr(bdi.vm_state_offset, s2, sizeof(s2)); | |
2057 | ||
2058 | printf("cluster size: %s\n", s1); | |
2059 | printf("vm state offset: %s\n", s2); | |
2060 | ||
1bf6e9ca AS |
2061 | spec_info = bdrv_get_specific_info(bs, &local_err); |
2062 | if (local_err) { | |
2063 | error_report_err(local_err); | |
2064 | return -EIO; | |
2065 | } | |
a8d8ecb7 | 2066 | if (spec_info) { |
3716470b | 2067 | bdrv_image_info_specific_dump(spec_info, |
76c9e975 HR |
2068 | "Format specific information:\n", |
2069 | 0); | |
a8d8ecb7 HR |
2070 | qapi_free_ImageInfoSpecific(spec_info); |
2071 | } | |
b32d7a39 HR |
2072 | |
2073 | return 0; | |
797ac58c KW |
2074 | } |
2075 | ||
2076 | ||
2077 | ||
2078 | static const cmdinfo_t info_cmd = { | |
2079 | .name = "info", | |
2080 | .altname = "i", | |
2081 | .cfunc = info_f, | |
2082 | .oneline = "prints information about the current file", | |
2083 | }; | |
2084 | ||
2085 | static void discard_help(void) | |
2086 | { | |
2087 | printf( | |
2088 | "\n" | |
2089 | " discards a range of bytes from the given offset\n" | |
2090 | "\n" | |
2091 | " Example:\n" | |
2092 | " 'discard 512 1k' - discards 1 kilobyte from 512 bytes into the file\n" | |
2093 | "\n" | |
2094 | " Discards a segment of the currently open file.\n" | |
2095 | " -C, -- report statistics in a machine parsable format\n" | |
2096 | " -q, -- quiet mode, do not show I/O statistics\n" | |
2097 | "\n"); | |
2098 | } | |
2099 | ||
b32d7a39 | 2100 | static int discard_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
2101 | |
2102 | static const cmdinfo_t discard_cmd = { | |
2103 | .name = "discard", | |
2104 | .altname = "d", | |
2105 | .cfunc = discard_f, | |
887354bd | 2106 | .perm = BLK_PERM_WRITE, |
797ac58c KW |
2107 | .argmin = 2, |
2108 | .argmax = -1, | |
2109 | .args = "[-Cq] off len", | |
2110 | .oneline = "discards a number of bytes at a specified offset", | |
2111 | .help = discard_help, | |
2112 | }; | |
2113 | ||
b32d7a39 | 2114 | static int discard_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 2115 | { |
50290c00 | 2116 | struct timespec t1, t2; |
dc38852a | 2117 | bool Cflag = false, qflag = false; |
797ac58c | 2118 | int c, ret; |
f5a5ca79 | 2119 | int64_t offset, bytes; |
797ac58c | 2120 | |
b062ad86 | 2121 | while ((c = getopt(argc, argv, "Cq")) != -1) { |
797ac58c KW |
2122 | switch (c) { |
2123 | case 'C': | |
dc38852a | 2124 | Cflag = true; |
797ac58c KW |
2125 | break; |
2126 | case 'q': | |
dc38852a | 2127 | qflag = true; |
797ac58c KW |
2128 | break; |
2129 | default: | |
b444d0e9 | 2130 | qemuio_command_usage(&discard_cmd); |
b32d7a39 | 2131 | return -EINVAL; |
797ac58c KW |
2132 | } |
2133 | } | |
2134 | ||
2135 | if (optind != argc - 2) { | |
b444d0e9 | 2136 | qemuio_command_usage(&discard_cmd); |
b32d7a39 | 2137 | return -EINVAL; |
797ac58c KW |
2138 | } |
2139 | ||
2140 | offset = cvtnum(argv[optind]); | |
2141 | if (offset < 0) { | |
a9ecfa00 | 2142 | print_cvtnum_err(offset, argv[optind]); |
b32d7a39 | 2143 | return offset; |
797ac58c KW |
2144 | } |
2145 | ||
2146 | optind++; | |
f5a5ca79 MP |
2147 | bytes = cvtnum(argv[optind]); |
2148 | if (bytes < 0) { | |
2149 | print_cvtnum_err(bytes, argv[optind]); | |
b32d7a39 | 2150 | return bytes; |
41ae31e3 | 2151 | } else if (bytes > BDRV_REQUEST_MAX_BYTES) { |
9b0beaf3 | 2152 | printf("length cannot exceed %"PRIu64", given %s\n", |
41ae31e3 | 2153 | (uint64_t)BDRV_REQUEST_MAX_BYTES, argv[optind]); |
b32d7a39 | 2154 | return -EINVAL; |
797ac58c KW |
2155 | } |
2156 | ||
50290c00 | 2157 | clock_gettime(CLOCK_MONOTONIC, &t1); |
f5a5ca79 | 2158 | ret = blk_pdiscard(blk, offset, bytes); |
50290c00 | 2159 | clock_gettime(CLOCK_MONOTONIC, &t2); |
797ac58c KW |
2160 | |
2161 | if (ret < 0) { | |
2162 | printf("discard failed: %s\n", strerror(-ret)); | |
b32d7a39 | 2163 | return ret; |
797ac58c KW |
2164 | } |
2165 | ||
2166 | /* Finally, report back -- -C gives a parsable format */ | |
2167 | if (!qflag) { | |
2168 | t2 = tsub(t2, t1); | |
f5a5ca79 | 2169 | print_report("discard", &t2, offset, bytes, bytes, 1, Cflag); |
797ac58c | 2170 | } |
b32d7a39 HR |
2171 | |
2172 | return 0; | |
797ac58c KW |
2173 | } |
2174 | ||
b32d7a39 | 2175 | static int alloc_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 2176 | { |
4c7b7e9b | 2177 | BlockDriverState *bs = blk_bs(blk); |
d6a644bb | 2178 | int64_t offset, start, remaining, count; |
797ac58c | 2179 | char s1[64]; |
d6a644bb EB |
2180 | int ret; |
2181 | int64_t num, sum_alloc; | |
797ac58c | 2182 | |
d6a644bb | 2183 | start = offset = cvtnum(argv[1]); |
797ac58c | 2184 | if (offset < 0) { |
a9ecfa00 | 2185 | print_cvtnum_err(offset, argv[1]); |
b32d7a39 | 2186 | return offset; |
797ac58c KW |
2187 | } |
2188 | ||
2189 | if (argc == 3) { | |
4401fdc7 EB |
2190 | count = cvtnum(argv[2]); |
2191 | if (count < 0) { | |
2192 | print_cvtnum_err(count, argv[2]); | |
b32d7a39 | 2193 | return count; |
797ac58c KW |
2194 | } |
2195 | } else { | |
4401fdc7 EB |
2196 | count = BDRV_SECTOR_SIZE; |
2197 | } | |
797ac58c | 2198 | |
d6a644bb | 2199 | remaining = count; |
797ac58c | 2200 | sum_alloc = 0; |
797ac58c | 2201 | while (remaining) { |
d6a644bb | 2202 | ret = bdrv_is_allocated(bs, offset, remaining, &num); |
d663640c PB |
2203 | if (ret < 0) { |
2204 | printf("is_allocated failed: %s\n", strerror(-ret)); | |
b32d7a39 | 2205 | return ret; |
d663640c | 2206 | } |
d6a644bb | 2207 | offset += num; |
797ac58c KW |
2208 | remaining -= num; |
2209 | if (ret) { | |
2210 | sum_alloc += num; | |
2211 | } | |
2212 | if (num == 0) { | |
d6a644bb | 2213 | count -= remaining; |
797ac58c KW |
2214 | remaining = 0; |
2215 | } | |
2216 | } | |
2217 | ||
d6a644bb | 2218 | cvtstr(start, s1, sizeof(s1)); |
797ac58c | 2219 | |
4401fdc7 | 2220 | printf("%"PRId64"/%"PRId64" bytes allocated at offset %s\n", |
d6a644bb | 2221 | sum_alloc, count, s1); |
b32d7a39 | 2222 | return 0; |
797ac58c KW |
2223 | } |
2224 | ||
2225 | static const cmdinfo_t alloc_cmd = { | |
2226 | .name = "alloc", | |
2227 | .altname = "a", | |
2228 | .argmin = 1, | |
2229 | .argmax = 2, | |
2230 | .cfunc = alloc_f, | |
4401fdc7 EB |
2231 | .args = "offset [count]", |
2232 | .oneline = "checks if offset is allocated in the file", | |
797ac58c KW |
2233 | }; |
2234 | ||
2235 | ||
d6a644bb EB |
2236 | static int map_is_allocated(BlockDriverState *bs, int64_t offset, |
2237 | int64_t bytes, int64_t *pnum) | |
797ac58c | 2238 | { |
d6a644bb | 2239 | int64_t num; |
797ac58c KW |
2240 | int ret, firstret; |
2241 | ||
087f2fb3 | 2242 | ret = bdrv_is_allocated(bs, offset, bytes, &num); |
797ac58c KW |
2243 | if (ret < 0) { |
2244 | return ret; | |
2245 | } | |
2246 | ||
2247 | firstret = ret; | |
2248 | *pnum = num; | |
2249 | ||
d6a644bb EB |
2250 | while (bytes > 0 && ret == firstret) { |
2251 | offset += num; | |
2252 | bytes -= num; | |
797ac58c | 2253 | |
087f2fb3 | 2254 | ret = bdrv_is_allocated(bs, offset, bytes, &num); |
4b25bbc4 | 2255 | if (ret == firstret && num) { |
797ac58c KW |
2256 | *pnum += num; |
2257 | } else { | |
2258 | break; | |
2259 | } | |
2260 | } | |
2261 | ||
2262 | return firstret; | |
2263 | } | |
2264 | ||
b32d7a39 | 2265 | static int map_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 2266 | { |
d6a644bb | 2267 | int64_t offset, bytes; |
6f3c90af | 2268 | char s1[64], s2[64]; |
797ac58c KW |
2269 | int64_t num; |
2270 | int ret; | |
2271 | const char *retstr; | |
2272 | ||
2273 | offset = 0; | |
d6a644bb EB |
2274 | bytes = blk_getlength(blk); |
2275 | if (bytes < 0) { | |
2276 | error_report("Failed to query image length: %s", strerror(-bytes)); | |
b32d7a39 | 2277 | return bytes; |
4c7b7e9b HR |
2278 | } |
2279 | ||
d6a644bb EB |
2280 | while (bytes) { |
2281 | ret = map_is_allocated(blk_bs(blk), offset, bytes, &num); | |
797ac58c KW |
2282 | if (ret < 0) { |
2283 | error_report("Failed to get allocation status: %s", strerror(-ret)); | |
b32d7a39 | 2284 | return ret; |
4b25bbc4 HR |
2285 | } else if (!num) { |
2286 | error_report("Unexpected end of image"); | |
b32d7a39 | 2287 | return -EIO; |
797ac58c KW |
2288 | } |
2289 | ||
2290 | retstr = ret ? " allocated" : "not allocated"; | |
d6a644bb EB |
2291 | cvtstr(num, s1, sizeof(s1)); |
2292 | cvtstr(offset, s2, sizeof(s2)); | |
6f3c90af | 2293 | printf("%s (0x%" PRIx64 ") bytes %s at offset %s (0x%" PRIx64 ")\n", |
d6a644bb | 2294 | s1, num, retstr, s2, offset); |
797ac58c KW |
2295 | |
2296 | offset += num; | |
d6a644bb EB |
2297 | bytes -= num; |
2298 | } | |
b32d7a39 HR |
2299 | |
2300 | return 0; | |
797ac58c KW |
2301 | } |
2302 | ||
2303 | static const cmdinfo_t map_cmd = { | |
2304 | .name = "map", | |
2305 | .argmin = 0, | |
2306 | .argmax = 0, | |
2307 | .cfunc = map_f, | |
2308 | .args = "", | |
2309 | .oneline = "prints the allocated areas of a file", | |
2310 | }; | |
2311 | ||
5bbd2e59 KW |
2312 | static void reopen_help(void) |
2313 | { | |
2314 | printf( | |
2315 | "\n" | |
2316 | " Changes the open options of an already opened image\n" | |
2317 | "\n" | |
2318 | " Example:\n" | |
2319 | " 'reopen -o lazy-refcounts=on' - activates lazy refcount writeback on a qcow2 image\n" | |
2320 | "\n" | |
2321 | " -r, -- Reopen the image read-only\n" | |
ea92203c | 2322 | " -w, -- Reopen the image read-write\n" |
5bbd2e59 KW |
2323 | " -c, -- Change the cache mode to the given value\n" |
2324 | " -o, -- Changes block driver options (cf. 'open' command)\n" | |
2325 | "\n"); | |
2326 | } | |
2327 | ||
b32d7a39 | 2328 | static int reopen_f(BlockBackend *blk, int argc, char **argv); |
5bbd2e59 KW |
2329 | |
2330 | static QemuOptsList reopen_opts = { | |
2331 | .name = "reopen", | |
2332 | .merge_lists = true, | |
2333 | .head = QTAILQ_HEAD_INITIALIZER(reopen_opts.head), | |
2334 | .desc = { | |
2335 | /* no elements => accept any params */ | |
2336 | { /* end of list */ } | |
2337 | }, | |
2338 | }; | |
2339 | ||
2340 | static const cmdinfo_t reopen_cmd = { | |
2341 | .name = "reopen", | |
2342 | .argmin = 0, | |
2343 | .argmax = -1, | |
2344 | .cfunc = reopen_f, | |
ea92203c | 2345 | .args = "[(-r|-w)] [-c cache] [-o options]", |
5bbd2e59 KW |
2346 | .oneline = "reopens an image with new options", |
2347 | .help = reopen_help, | |
2348 | }; | |
2349 | ||
b32d7a39 | 2350 | static int reopen_f(BlockBackend *blk, int argc, char **argv) |
5bbd2e59 KW |
2351 | { |
2352 | BlockDriverState *bs = blk_bs(blk); | |
2353 | QemuOpts *qopts; | |
2354 | QDict *opts; | |
2355 | int c; | |
2356 | int flags = bs->open_flags; | |
19dbecdc | 2357 | bool writethrough = !blk_enable_write_cache(blk); |
ea92203c | 2358 | bool has_rw_option = false; |
dc900c35 | 2359 | bool has_cache_option = false; |
5bbd2e59 KW |
2360 | Error *local_err = NULL; |
2361 | ||
ea92203c | 2362 | while ((c = getopt(argc, argv, "c:o:rw")) != -1) { |
5bbd2e59 KW |
2363 | switch (c) { |
2364 | case 'c': | |
19dbecdc | 2365 | if (bdrv_parse_cache_mode(optarg, &flags, &writethrough) < 0) { |
5bbd2e59 | 2366 | error_report("Invalid cache option: %s", optarg); |
b32d7a39 | 2367 | return -EINVAL; |
5bbd2e59 | 2368 | } |
dc900c35 | 2369 | has_cache_option = true; |
5bbd2e59 KW |
2370 | break; |
2371 | case 'o': | |
2372 | if (!qemu_opts_parse_noisily(&reopen_opts, optarg, 0)) { | |
2373 | qemu_opts_reset(&reopen_opts); | |
b32d7a39 | 2374 | return -EINVAL; |
5bbd2e59 KW |
2375 | } |
2376 | break; | |
2377 | case 'r': | |
ea92203c KW |
2378 | if (has_rw_option) { |
2379 | error_report("Only one -r/-w option may be given"); | |
b32d7a39 | 2380 | return -EINVAL; |
ea92203c | 2381 | } |
5bbd2e59 | 2382 | flags &= ~BDRV_O_RDWR; |
ea92203c KW |
2383 | has_rw_option = true; |
2384 | break; | |
2385 | case 'w': | |
2386 | if (has_rw_option) { | |
2387 | error_report("Only one -r/-w option may be given"); | |
b32d7a39 | 2388 | return -EINVAL; |
ea92203c KW |
2389 | } |
2390 | flags |= BDRV_O_RDWR; | |
2391 | has_rw_option = true; | |
5bbd2e59 KW |
2392 | break; |
2393 | default: | |
2394 | qemu_opts_reset(&reopen_opts); | |
b444d0e9 | 2395 | qemuio_command_usage(&reopen_cmd); |
b32d7a39 | 2396 | return -EINVAL; |
5bbd2e59 KW |
2397 | } |
2398 | } | |
2399 | ||
2400 | if (optind != argc) { | |
2401 | qemu_opts_reset(&reopen_opts); | |
b444d0e9 | 2402 | qemuio_command_usage(&reopen_cmd); |
b32d7a39 | 2403 | return -EINVAL; |
5bbd2e59 KW |
2404 | } |
2405 | ||
a8003ec4 | 2406 | if (!writethrough != blk_enable_write_cache(blk) && |
19dbecdc KW |
2407 | blk_get_attached_dev(blk)) |
2408 | { | |
2409 | error_report("Cannot change cache.writeback: Device attached"); | |
2410 | qemu_opts_reset(&reopen_opts); | |
b32d7a39 | 2411 | return -EBUSY; |
19dbecdc KW |
2412 | } |
2413 | ||
f3adefb2 KW |
2414 | if (!(flags & BDRV_O_RDWR)) { |
2415 | uint64_t orig_perm, orig_shared_perm; | |
2416 | ||
2417 | bdrv_drain(bs); | |
2418 | ||
2419 | blk_get_perm(blk, &orig_perm, &orig_shared_perm); | |
2420 | blk_set_perm(blk, | |
2421 | orig_perm & ~(BLK_PERM_WRITE | BLK_PERM_WRITE_UNCHANGED), | |
2422 | orig_shared_perm, | |
2423 | &error_abort); | |
2424 | } | |
2425 | ||
5bbd2e59 | 2426 | qopts = qemu_opts_find(&reopen_opts, NULL); |
dc900c35 | 2427 | opts = qopts ? qemu_opts_to_qdict(qopts, NULL) : qdict_new(); |
5bbd2e59 KW |
2428 | qemu_opts_reset(&reopen_opts); |
2429 | ||
dc900c35 AG |
2430 | if (qdict_haskey(opts, BDRV_OPT_READ_ONLY)) { |
2431 | if (has_rw_option) { | |
2432 | error_report("Cannot set both -r/-w and '" BDRV_OPT_READ_ONLY "'"); | |
2433 | qobject_unref(opts); | |
2434 | return -EINVAL; | |
2435 | } | |
2436 | } else { | |
2437 | qdict_put_bool(opts, BDRV_OPT_READ_ONLY, !(flags & BDRV_O_RDWR)); | |
2438 | } | |
2439 | ||
2440 | if (qdict_haskey(opts, BDRV_OPT_CACHE_DIRECT) || | |
2441 | qdict_haskey(opts, BDRV_OPT_CACHE_NO_FLUSH)) { | |
2442 | if (has_cache_option) { | |
2443 | error_report("Cannot set both -c and the cache options"); | |
2444 | qobject_unref(opts); | |
2445 | return -EINVAL; | |
2446 | } | |
2447 | } else { | |
2448 | qdict_put_bool(opts, BDRV_OPT_CACHE_DIRECT, flags & BDRV_O_NOCACHE); | |
2449 | qdict_put_bool(opts, BDRV_OPT_CACHE_NO_FLUSH, flags & BDRV_O_NO_FLUSH); | |
2450 | } | |
2451 | ||
6cf42ca2 | 2452 | bdrv_reopen(bs, opts, true, &local_err); |
1a63a907 | 2453 | |
5bbd2e59 KW |
2454 | if (local_err) { |
2455 | error_report_err(local_err); | |
b32d7a39 | 2456 | return -EINVAL; |
5bbd2e59 | 2457 | } |
b32d7a39 HR |
2458 | |
2459 | blk_set_enable_write_cache(blk, !writethrough); | |
2460 | return 0; | |
5bbd2e59 KW |
2461 | } |
2462 | ||
b32d7a39 | 2463 | static int break_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
2464 | { |
2465 | int ret; | |
2466 | ||
4c7b7e9b | 2467 | ret = bdrv_debug_breakpoint(blk_bs(blk), argv[1], argv[2]); |
797ac58c KW |
2468 | if (ret < 0) { |
2469 | printf("Could not set breakpoint: %s\n", strerror(-ret)); | |
b32d7a39 | 2470 | return ret; |
797ac58c | 2471 | } |
b32d7a39 HR |
2472 | |
2473 | return 0; | |
797ac58c KW |
2474 | } |
2475 | ||
b32d7a39 | 2476 | static int remove_break_f(BlockBackend *blk, int argc, char **argv) |
4cc70e93 FZ |
2477 | { |
2478 | int ret; | |
2479 | ||
4c7b7e9b | 2480 | ret = bdrv_debug_remove_breakpoint(blk_bs(blk), argv[1]); |
4cc70e93 FZ |
2481 | if (ret < 0) { |
2482 | printf("Could not remove breakpoint %s: %s\n", argv[1], strerror(-ret)); | |
b32d7a39 | 2483 | return ret; |
4cc70e93 | 2484 | } |
b32d7a39 HR |
2485 | |
2486 | return 0; | |
4cc70e93 FZ |
2487 | } |
2488 | ||
797ac58c KW |
2489 | static const cmdinfo_t break_cmd = { |
2490 | .name = "break", | |
2491 | .argmin = 2, | |
2492 | .argmax = 2, | |
2493 | .cfunc = break_f, | |
2494 | .args = "event tag", | |
2495 | .oneline = "sets a breakpoint on event and tags the stopped " | |
2496 | "request as tag", | |
2497 | }; | |
2498 | ||
4cc70e93 FZ |
2499 | static const cmdinfo_t remove_break_cmd = { |
2500 | .name = "remove_break", | |
2501 | .argmin = 1, | |
2502 | .argmax = 1, | |
2503 | .cfunc = remove_break_f, | |
2504 | .args = "tag", | |
2505 | .oneline = "remove a breakpoint by tag", | |
2506 | }; | |
2507 | ||
b32d7a39 | 2508 | static int resume_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
2509 | { |
2510 | int ret; | |
2511 | ||
4c7b7e9b | 2512 | ret = bdrv_debug_resume(blk_bs(blk), argv[1]); |
797ac58c KW |
2513 | if (ret < 0) { |
2514 | printf("Could not resume request: %s\n", strerror(-ret)); | |
b32d7a39 | 2515 | return ret; |
797ac58c | 2516 | } |
b32d7a39 HR |
2517 | |
2518 | return 0; | |
797ac58c KW |
2519 | } |
2520 | ||
2521 | static const cmdinfo_t resume_cmd = { | |
2522 | .name = "resume", | |
2523 | .argmin = 1, | |
2524 | .argmax = 1, | |
2525 | .cfunc = resume_f, | |
2526 | .args = "tag", | |
2527 | .oneline = "resumes the request tagged as tag", | |
2528 | }; | |
2529 | ||
b32d7a39 | 2530 | static int wait_break_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 2531 | { |
4c7b7e9b HR |
2532 | while (!bdrv_debug_is_suspended(blk_bs(blk), argv[1])) { |
2533 | aio_poll(blk_get_aio_context(blk), true); | |
797ac58c | 2534 | } |
b32d7a39 | 2535 | return 0; |
797ac58c KW |
2536 | } |
2537 | ||
2538 | static const cmdinfo_t wait_break_cmd = { | |
2539 | .name = "wait_break", | |
2540 | .argmin = 1, | |
2541 | .argmax = 1, | |
2542 | .cfunc = wait_break_f, | |
2543 | .args = "tag", | |
2544 | .oneline = "waits for the suspension of a request", | |
2545 | }; | |
2546 | ||
b32d7a39 | 2547 | static int abort_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
2548 | { |
2549 | abort(); | |
2550 | } | |
2551 | ||
2552 | static const cmdinfo_t abort_cmd = { | |
2553 | .name = "abort", | |
2554 | .cfunc = abort_f, | |
2555 | .flags = CMD_NOFILE_OK, | |
2556 | .oneline = "simulate a program crash using abort(3)", | |
2557 | }; | |
2558 | ||
0e82dc7b HR |
2559 | static void sigraise_help(void) |
2560 | { | |
2561 | printf( | |
2562 | "\n" | |
2563 | " raises the given signal\n" | |
2564 | "\n" | |
2565 | " Example:\n" | |
2566 | " 'sigraise %i' - raises SIGTERM\n" | |
2567 | "\n" | |
2568 | " Invokes raise(signal), where \"signal\" is the mandatory integer argument\n" | |
2569 | " given to sigraise.\n" | |
2570 | "\n", SIGTERM); | |
2571 | } | |
2572 | ||
b32d7a39 | 2573 | static int sigraise_f(BlockBackend *blk, int argc, char **argv); |
0e82dc7b HR |
2574 | |
2575 | static const cmdinfo_t sigraise_cmd = { | |
2576 | .name = "sigraise", | |
2577 | .cfunc = sigraise_f, | |
2578 | .argmin = 1, | |
2579 | .argmax = 1, | |
2580 | .flags = CMD_NOFILE_OK, | |
2581 | .args = "signal", | |
2582 | .oneline = "raises a signal", | |
2583 | .help = sigraise_help, | |
2584 | }; | |
2585 | ||
b32d7a39 | 2586 | static int sigraise_f(BlockBackend *blk, int argc, char **argv) |
0e82dc7b | 2587 | { |
9b0beaf3 | 2588 | int64_t sig = cvtnum(argv[1]); |
0e82dc7b | 2589 | if (sig < 0) { |
a9ecfa00 | 2590 | print_cvtnum_err(sig, argv[1]); |
b32d7a39 | 2591 | return sig; |
9b0beaf3 JS |
2592 | } else if (sig > NSIG) { |
2593 | printf("signal argument '%s' is too large to be a valid signal\n", | |
2594 | argv[1]); | |
b32d7a39 | 2595 | return -EINVAL; |
0e82dc7b HR |
2596 | } |
2597 | ||
2598 | /* Using raise() to kill this process does not necessarily flush all open | |
2599 | * streams. At least stdout and stderr (although the latter should be | |
2600 | * non-buffered anyway) should be flushed, though. */ | |
2601 | fflush(stdout); | |
2602 | fflush(stderr); | |
2603 | ||
2604 | raise(sig); | |
b32d7a39 HR |
2605 | |
2606 | return 0; | |
0e82dc7b HR |
2607 | } |
2608 | ||
cd33d02a KW |
2609 | static void sleep_cb(void *opaque) |
2610 | { | |
2611 | bool *expired = opaque; | |
2612 | *expired = true; | |
2613 | } | |
2614 | ||
b32d7a39 | 2615 | static int sleep_f(BlockBackend *blk, int argc, char **argv) |
cd33d02a KW |
2616 | { |
2617 | char *endptr; | |
2618 | long ms; | |
2619 | struct QEMUTimer *timer; | |
2620 | bool expired = false; | |
2621 | ||
2622 | ms = strtol(argv[1], &endptr, 0); | |
2623 | if (ms < 0 || *endptr != '\0') { | |
2624 | printf("%s is not a valid number\n", argv[1]); | |
b32d7a39 | 2625 | return -EINVAL; |
cd33d02a KW |
2626 | } |
2627 | ||
2628 | timer = timer_new_ns(QEMU_CLOCK_HOST, sleep_cb, &expired); | |
2629 | timer_mod(timer, qemu_clock_get_ns(QEMU_CLOCK_HOST) + SCALE_MS * ms); | |
2630 | ||
2631 | while (!expired) { | |
2632 | main_loop_wait(false); | |
2633 | } | |
2634 | ||
2635 | timer_free(timer); | |
b32d7a39 | 2636 | return 0; |
cd33d02a KW |
2637 | } |
2638 | ||
2639 | static const cmdinfo_t sleep_cmd = { | |
2640 | .name = "sleep", | |
2641 | .argmin = 1, | |
2642 | .argmax = 1, | |
2643 | .cfunc = sleep_f, | |
2644 | .flags = CMD_NOFILE_OK, | |
2645 | .oneline = "waits for the given value in milliseconds", | |
2646 | }; | |
2647 | ||
f18a834a KW |
2648 | static void help_oneline(const char *cmd, const cmdinfo_t *ct) |
2649 | { | |
da16f4b8 | 2650 | printf("%s ", cmd); |
f18a834a KW |
2651 | |
2652 | if (ct->args) { | |
2653 | printf("%s ", ct->args); | |
2654 | } | |
2655 | printf("-- %s\n", ct->oneline); | |
2656 | } | |
2657 | ||
2658 | static void help_onecmd(const char *cmd, const cmdinfo_t *ct) | |
2659 | { | |
2660 | help_oneline(cmd, ct); | |
2661 | if (ct->help) { | |
2662 | ct->help(); | |
2663 | } | |
2664 | } | |
2665 | ||
2666 | static void help_all(void) | |
2667 | { | |
2668 | const cmdinfo_t *ct; | |
2669 | ||
2670 | for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { | |
2671 | help_oneline(ct->name, ct); | |
2672 | } | |
2673 | printf("\nUse 'help commandname' for extended help.\n"); | |
2674 | } | |
2675 | ||
b32d7a39 | 2676 | static int help_f(BlockBackend *blk, int argc, char **argv) |
f18a834a KW |
2677 | { |
2678 | const cmdinfo_t *ct; | |
2679 | ||
da16f4b8 | 2680 | if (argc < 2) { |
f18a834a | 2681 | help_all(); |
b32d7a39 | 2682 | return 0; |
f18a834a KW |
2683 | } |
2684 | ||
2685 | ct = find_command(argv[1]); | |
2686 | if (ct == NULL) { | |
2687 | printf("command %s not found\n", argv[1]); | |
b32d7a39 | 2688 | return -EINVAL; |
f18a834a KW |
2689 | } |
2690 | ||
2691 | help_onecmd(argv[1], ct); | |
b32d7a39 | 2692 | return 0; |
f18a834a KW |
2693 | } |
2694 | ||
2695 | static const cmdinfo_t help_cmd = { | |
2696 | .name = "help", | |
2697 | .altname = "?", | |
2698 | .cfunc = help_f, | |
2699 | .argmin = 0, | |
2700 | .argmax = 1, | |
2701 | .flags = CMD_FLAG_GLOBAL, | |
2702 | .args = "[command]", | |
2703 | .oneline = "help for one or all commands", | |
2704 | }; | |
2705 | ||
78632a3d VSO |
2706 | /* |
2707 | * Called with aio context of blk acquired. Or with qemu_get_aio_context() | |
2708 | * context acquired if blk is NULL. | |
2709 | */ | |
b32d7a39 | 2710 | int qemuio_command(BlockBackend *blk, const char *cmd) |
dd583296 KW |
2711 | { |
2712 | char *input; | |
2713 | const cmdinfo_t *ct; | |
2714 | char **v; | |
2715 | int c; | |
b32d7a39 | 2716 | int ret = 0; |
dd583296 KW |
2717 | |
2718 | input = g_strdup(cmd); | |
2719 | v = breakline(input, &c); | |
2720 | if (c) { | |
2721 | ct = find_command(v[0]); | |
2722 | if (ct) { | |
b32d7a39 | 2723 | ret = command(blk, ct, c, v); |
dd583296 KW |
2724 | } else { |
2725 | fprintf(stderr, "command \"%s\" not found\n", v[0]); | |
b32d7a39 | 2726 | ret = -EINVAL; |
dd583296 KW |
2727 | } |
2728 | } | |
2729 | g_free(input); | |
2730 | g_free(v); | |
b32d7a39 HR |
2731 | |
2732 | return ret; | |
dd583296 KW |
2733 | } |
2734 | ||
797ac58c KW |
2735 | static void __attribute((constructor)) init_qemuio_commands(void) |
2736 | { | |
2737 | /* initialize commands */ | |
c2cdf5c5 KW |
2738 | qemuio_add_command(&help_cmd); |
2739 | qemuio_add_command(&read_cmd); | |
2740 | qemuio_add_command(&readv_cmd); | |
2741 | qemuio_add_command(&write_cmd); | |
2742 | qemuio_add_command(&writev_cmd); | |
c2cdf5c5 KW |
2743 | qemuio_add_command(&aio_read_cmd); |
2744 | qemuio_add_command(&aio_write_cmd); | |
2745 | qemuio_add_command(&aio_flush_cmd); | |
2746 | qemuio_add_command(&flush_cmd); | |
6d43eaa3 SL |
2747 | qemuio_add_command(&zone_report_cmd); |
2748 | qemuio_add_command(&zone_open_cmd); | |
2749 | qemuio_add_command(&zone_close_cmd); | |
2750 | qemuio_add_command(&zone_finish_cmd); | |
2751 | qemuio_add_command(&zone_reset_cmd); | |
fe4fe70d | 2752 | qemuio_add_command(&zone_append_cmd); |
c2cdf5c5 KW |
2753 | qemuio_add_command(&truncate_cmd); |
2754 | qemuio_add_command(&length_cmd); | |
2755 | qemuio_add_command(&info_cmd); | |
2756 | qemuio_add_command(&discard_cmd); | |
2757 | qemuio_add_command(&alloc_cmd); | |
2758 | qemuio_add_command(&map_cmd); | |
5bbd2e59 | 2759 | qemuio_add_command(&reopen_cmd); |
c2cdf5c5 | 2760 | qemuio_add_command(&break_cmd); |
4cc70e93 | 2761 | qemuio_add_command(&remove_break_cmd); |
c2cdf5c5 KW |
2762 | qemuio_add_command(&resume_cmd); |
2763 | qemuio_add_command(&wait_break_cmd); | |
2764 | qemuio_add_command(&abort_cmd); | |
cd33d02a | 2765 | qemuio_add_command(&sleep_cmd); |
0e82dc7b | 2766 | qemuio_add_command(&sigraise_cmd); |
797ac58c | 2767 | } |