1797ac58cSKevin Wolf /* 2797ac58cSKevin Wolf * Command line utility to exercise the QEMU I/O path. 3797ac58cSKevin Wolf * 4797ac58cSKevin Wolf * Copyright (C) 2009 Red Hat, Inc. 5797ac58cSKevin Wolf * Copyright (c) 2003-2005 Silicon Graphics, Inc. 6797ac58cSKevin Wolf * 7797ac58cSKevin Wolf * This work is licensed under the terms of the GNU GPL, version 2 or later. 8797ac58cSKevin Wolf * See the COPYING file in the top-level directory. 9797ac58cSKevin Wolf */ 10797ac58cSKevin Wolf 113d21994fSKevin Wolf #include "qemu-io.h" 12797ac58cSKevin Wolf #include "block/block_int.h" 13a8d8ecb7SMax Reitz #include "block/qapi.h" 146a1751b7SAlex Bligh #include "qemu/main-loop.h" 15cd33d02aSKevin Wolf #include "qemu/timer.h" 16*a91f9584SFam Zheng #include "sysemu/block-backend.h" 17797ac58cSKevin Wolf 18797ac58cSKevin Wolf #define CMD_NOFILE_OK 0x01 19797ac58cSKevin Wolf 20f9883880SStefan Weil bool qemuio_misalign; 21797ac58cSKevin Wolf 22c2cdf5c5SKevin Wolf static cmdinfo_t *cmdtab; 23c2cdf5c5SKevin Wolf static int ncmds; 24c2cdf5c5SKevin Wolf 25c2cdf5c5SKevin Wolf static int compare_cmdname(const void *a, const void *b) 26c2cdf5c5SKevin Wolf { 27c2cdf5c5SKevin Wolf return strcmp(((const cmdinfo_t *)a)->name, 28c2cdf5c5SKevin Wolf ((const cmdinfo_t *)b)->name); 29c2cdf5c5SKevin Wolf } 30c2cdf5c5SKevin Wolf 31c2cdf5c5SKevin Wolf void qemuio_add_command(const cmdinfo_t *ci) 32c2cdf5c5SKevin Wolf { 3302c4f26bSMarkus Armbruster cmdtab = g_renew(cmdinfo_t, cmdtab, ++ncmds); 34c2cdf5c5SKevin Wolf cmdtab[ncmds - 1] = *ci; 35c2cdf5c5SKevin Wolf qsort(cmdtab, ncmds, sizeof(*cmdtab), compare_cmdname); 36c2cdf5c5SKevin Wolf } 37c2cdf5c5SKevin Wolf 38c2cdf5c5SKevin Wolf int qemuio_command_usage(const cmdinfo_t *ci) 39c2cdf5c5SKevin Wolf { 40c2cdf5c5SKevin Wolf printf("%s %s -- %s\n", ci->name, ci->args, ci->oneline); 41c2cdf5c5SKevin Wolf return 0; 42c2cdf5c5SKevin Wolf } 43c2cdf5c5SKevin Wolf 44c2cdf5c5SKevin Wolf static int init_check_command(BlockDriverState *bs, const cmdinfo_t *ct) 45c2cdf5c5SKevin Wolf { 46c2cdf5c5SKevin Wolf if (ct->flags & CMD_FLAG_GLOBAL) { 47c2cdf5c5SKevin Wolf return 1; 48c2cdf5c5SKevin Wolf } 49c2cdf5c5SKevin Wolf if (!(ct->flags & CMD_NOFILE_OK) && !bs) { 50c2cdf5c5SKevin Wolf fprintf(stderr, "no file open, try 'help open'\n"); 51c2cdf5c5SKevin Wolf return 0; 52c2cdf5c5SKevin Wolf } 53c2cdf5c5SKevin Wolf return 1; 54c2cdf5c5SKevin Wolf } 55c2cdf5c5SKevin Wolf 563d21994fSKevin Wolf static int command(BlockDriverState *bs, const cmdinfo_t *ct, int argc, 573d21994fSKevin Wolf char **argv) 58c2cdf5c5SKevin Wolf { 59c2cdf5c5SKevin Wolf char *cmd = argv[0]; 60c2cdf5c5SKevin Wolf 613d21994fSKevin Wolf if (!init_check_command(bs, ct)) { 62c2cdf5c5SKevin Wolf return 0; 63c2cdf5c5SKevin Wolf } 64c2cdf5c5SKevin Wolf 65c2cdf5c5SKevin Wolf if (argc - 1 < ct->argmin || (ct->argmax != -1 && argc - 1 > ct->argmax)) { 66c2cdf5c5SKevin Wolf if (ct->argmax == -1) { 67c2cdf5c5SKevin Wolf fprintf(stderr, 68c2cdf5c5SKevin Wolf "bad argument count %d to %s, expected at least %d arguments\n", 69c2cdf5c5SKevin Wolf argc-1, cmd, ct->argmin); 70c2cdf5c5SKevin Wolf } else if (ct->argmin == ct->argmax) { 71c2cdf5c5SKevin Wolf fprintf(stderr, 72c2cdf5c5SKevin Wolf "bad argument count %d to %s, expected %d arguments\n", 73c2cdf5c5SKevin Wolf argc-1, cmd, ct->argmin); 74c2cdf5c5SKevin Wolf } else { 75c2cdf5c5SKevin Wolf fprintf(stderr, 76c2cdf5c5SKevin Wolf "bad argument count %d to %s, expected between %d and %d arguments\n", 77c2cdf5c5SKevin Wolf argc-1, cmd, ct->argmin, ct->argmax); 78c2cdf5c5SKevin Wolf } 79c2cdf5c5SKevin Wolf return 0; 80c2cdf5c5SKevin Wolf } 81c2cdf5c5SKevin Wolf optind = 0; 823d21994fSKevin Wolf return ct->cfunc(bs, argc, argv); 83c2cdf5c5SKevin Wolf } 84c2cdf5c5SKevin Wolf 85c2cdf5c5SKevin Wolf static const cmdinfo_t *find_command(const char *cmd) 86c2cdf5c5SKevin Wolf { 87c2cdf5c5SKevin Wolf cmdinfo_t *ct; 88c2cdf5c5SKevin Wolf 89c2cdf5c5SKevin Wolf for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { 90c2cdf5c5SKevin Wolf if (strcmp(ct->name, cmd) == 0 || 91c2cdf5c5SKevin Wolf (ct->altname && strcmp(ct->altname, cmd) == 0)) 92c2cdf5c5SKevin Wolf { 93c2cdf5c5SKevin Wolf return (const cmdinfo_t *)ct; 94c2cdf5c5SKevin Wolf } 95c2cdf5c5SKevin Wolf } 96c2cdf5c5SKevin Wolf return NULL; 97c2cdf5c5SKevin Wolf } 98c2cdf5c5SKevin Wolf 994694020dSStefan Hajnoczi /* Invoke fn() for commands with a matching prefix */ 1004694020dSStefan Hajnoczi void qemuio_complete_command(const char *input, 1014694020dSStefan Hajnoczi void (*fn)(const char *cmd, void *opaque), 1024694020dSStefan Hajnoczi void *opaque) 1034694020dSStefan Hajnoczi { 1044694020dSStefan Hajnoczi cmdinfo_t *ct; 1054694020dSStefan Hajnoczi size_t input_len = strlen(input); 1064694020dSStefan Hajnoczi 1074694020dSStefan Hajnoczi for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { 1084694020dSStefan Hajnoczi if (strncmp(input, ct->name, input_len) == 0) { 1094694020dSStefan Hajnoczi fn(ct->name, opaque); 1104694020dSStefan Hajnoczi } 1114694020dSStefan Hajnoczi } 1124694020dSStefan Hajnoczi } 1134694020dSStefan Hajnoczi 114c2cdf5c5SKevin Wolf static char **breakline(char *input, int *count) 115c2cdf5c5SKevin Wolf { 116c2cdf5c5SKevin Wolf int c = 0; 117c2cdf5c5SKevin Wolf char *p; 1185839e53bSMarkus Armbruster char **rval = g_new0(char *, 1); 119c2cdf5c5SKevin Wolf 120c2cdf5c5SKevin Wolf while (rval && (p = qemu_strsep(&input, " ")) != NULL) { 121c2cdf5c5SKevin Wolf if (!*p) { 122c2cdf5c5SKevin Wolf continue; 123c2cdf5c5SKevin Wolf } 124c2cdf5c5SKevin Wolf c++; 12508193dd5SMarkus Armbruster rval = g_renew(char *, rval, (c + 1)); 126c2cdf5c5SKevin Wolf rval[c - 1] = p; 127c2cdf5c5SKevin Wolf rval[c] = NULL; 128c2cdf5c5SKevin Wolf } 129c2cdf5c5SKevin Wolf *count = c; 130c2cdf5c5SKevin Wolf return rval; 131c2cdf5c5SKevin Wolf } 132c2cdf5c5SKevin Wolf 133797ac58cSKevin Wolf static int64_t cvtnum(const char *s) 134797ac58cSKevin Wolf { 135797ac58cSKevin Wolf char *end; 136797ac58cSKevin Wolf return strtosz_suffix(s, &end, STRTOSZ_DEFSUFFIX_B); 137797ac58cSKevin Wolf } 138797ac58cSKevin Wolf 1390b613881SKevin Wolf #define EXABYTES(x) ((long long)(x) << 60) 1400b613881SKevin Wolf #define PETABYTES(x) ((long long)(x) << 50) 1410b613881SKevin Wolf #define TERABYTES(x) ((long long)(x) << 40) 1420b613881SKevin Wolf #define GIGABYTES(x) ((long long)(x) << 30) 1430b613881SKevin Wolf #define MEGABYTES(x) ((long long)(x) << 20) 1440b613881SKevin Wolf #define KILOBYTES(x) ((long long)(x) << 10) 1450b613881SKevin Wolf 1460b613881SKevin Wolf #define TO_EXABYTES(x) ((x) / EXABYTES(1)) 1470b613881SKevin Wolf #define TO_PETABYTES(x) ((x) / PETABYTES(1)) 1480b613881SKevin Wolf #define TO_TERABYTES(x) ((x) / TERABYTES(1)) 1490b613881SKevin Wolf #define TO_GIGABYTES(x) ((x) / GIGABYTES(1)) 1500b613881SKevin Wolf #define TO_MEGABYTES(x) ((x) / MEGABYTES(1)) 1510b613881SKevin Wolf #define TO_KILOBYTES(x) ((x) / KILOBYTES(1)) 1520b613881SKevin Wolf 1530b613881SKevin Wolf static void cvtstr(double value, char *str, size_t size) 1540b613881SKevin Wolf { 1550b613881SKevin Wolf char *trim; 1560b613881SKevin Wolf const char *suffix; 1570b613881SKevin Wolf 1580b613881SKevin Wolf if (value >= EXABYTES(1)) { 1590b613881SKevin Wolf suffix = " EiB"; 1600b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_EXABYTES(value)); 1610b613881SKevin Wolf } else if (value >= PETABYTES(1)) { 1620b613881SKevin Wolf suffix = " PiB"; 1630b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_PETABYTES(value)); 1640b613881SKevin Wolf } else if (value >= TERABYTES(1)) { 1650b613881SKevin Wolf suffix = " TiB"; 1660b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_TERABYTES(value)); 1670b613881SKevin Wolf } else if (value >= GIGABYTES(1)) { 1680b613881SKevin Wolf suffix = " GiB"; 1690b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_GIGABYTES(value)); 1700b613881SKevin Wolf } else if (value >= MEGABYTES(1)) { 1710b613881SKevin Wolf suffix = " MiB"; 1720b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_MEGABYTES(value)); 1730b613881SKevin Wolf } else if (value >= KILOBYTES(1)) { 1740b613881SKevin Wolf suffix = " KiB"; 1750b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_KILOBYTES(value)); 1760b613881SKevin Wolf } else { 1770b613881SKevin Wolf suffix = " bytes"; 1780b613881SKevin Wolf snprintf(str, size - 6, "%f", value); 1790b613881SKevin Wolf } 1800b613881SKevin Wolf 1810b613881SKevin Wolf trim = strstr(str, ".000"); 1820b613881SKevin Wolf if (trim) { 1830b613881SKevin Wolf strcpy(trim, suffix); 1840b613881SKevin Wolf } else { 1850b613881SKevin Wolf strcat(str, suffix); 1860b613881SKevin Wolf } 1870b613881SKevin Wolf } 1880b613881SKevin Wolf 1890b613881SKevin Wolf 1900b613881SKevin Wolf 1910b613881SKevin Wolf static struct timeval tsub(struct timeval t1, struct timeval t2) 1920b613881SKevin Wolf { 1930b613881SKevin Wolf t1.tv_usec -= t2.tv_usec; 1940b613881SKevin Wolf if (t1.tv_usec < 0) { 1950b613881SKevin Wolf t1.tv_usec += 1000000; 1960b613881SKevin Wolf t1.tv_sec--; 1970b613881SKevin Wolf } 1980b613881SKevin Wolf t1.tv_sec -= t2.tv_sec; 1990b613881SKevin Wolf return t1; 2000b613881SKevin Wolf } 2010b613881SKevin Wolf 2020b613881SKevin Wolf static double tdiv(double value, struct timeval tv) 2030b613881SKevin Wolf { 2040b613881SKevin Wolf return value / ((double)tv.tv_sec + ((double)tv.tv_usec / 1000000.0)); 2050b613881SKevin Wolf } 2060b613881SKevin Wolf 2070b613881SKevin Wolf #define HOURS(sec) ((sec) / (60 * 60)) 2080b613881SKevin Wolf #define MINUTES(sec) (((sec) % (60 * 60)) / 60) 2090b613881SKevin Wolf #define SECONDS(sec) ((sec) % 60) 2100b613881SKevin Wolf 2110b613881SKevin Wolf enum { 2120b613881SKevin Wolf DEFAULT_TIME = 0x0, 2130b613881SKevin Wolf TERSE_FIXED_TIME = 0x1, 2140b613881SKevin Wolf VERBOSE_FIXED_TIME = 0x2, 2150b613881SKevin Wolf }; 2160b613881SKevin Wolf 2170b613881SKevin Wolf static void timestr(struct timeval *tv, char *ts, size_t size, int format) 2180b613881SKevin Wolf { 2190b613881SKevin Wolf double usec = (double)tv->tv_usec / 1000000.0; 2200b613881SKevin Wolf 2210b613881SKevin Wolf if (format & TERSE_FIXED_TIME) { 2220b613881SKevin Wolf if (!HOURS(tv->tv_sec)) { 2230b613881SKevin Wolf snprintf(ts, size, "%u:%02u.%02u", 2240b613881SKevin Wolf (unsigned int) MINUTES(tv->tv_sec), 2250b613881SKevin Wolf (unsigned int) SECONDS(tv->tv_sec), 2260b613881SKevin Wolf (unsigned int) (usec * 100)); 2270b613881SKevin Wolf return; 2280b613881SKevin Wolf } 2290b613881SKevin Wolf format |= VERBOSE_FIXED_TIME; /* fallback if hours needed */ 2300b613881SKevin Wolf } 2310b613881SKevin Wolf 2320b613881SKevin Wolf if ((format & VERBOSE_FIXED_TIME) || tv->tv_sec) { 2330b613881SKevin Wolf snprintf(ts, size, "%u:%02u:%02u.%02u", 2340b613881SKevin Wolf (unsigned int) HOURS(tv->tv_sec), 2350b613881SKevin Wolf (unsigned int) MINUTES(tv->tv_sec), 2360b613881SKevin Wolf (unsigned int) SECONDS(tv->tv_sec), 2370b613881SKevin Wolf (unsigned int) (usec * 100)); 2380b613881SKevin Wolf } else { 2390b613881SKevin Wolf snprintf(ts, size, "0.%04u sec", (unsigned int) (usec * 10000)); 2400b613881SKevin Wolf } 2410b613881SKevin Wolf } 2420b613881SKevin Wolf 243797ac58cSKevin Wolf /* 244797ac58cSKevin Wolf * Parse the pattern argument to various sub-commands. 245797ac58cSKevin Wolf * 246797ac58cSKevin Wolf * Because the pattern is used as an argument to memset it must evaluate 247797ac58cSKevin Wolf * to an unsigned integer that fits into a single byte. 248797ac58cSKevin Wolf */ 249797ac58cSKevin Wolf static int parse_pattern(const char *arg) 250797ac58cSKevin Wolf { 251797ac58cSKevin Wolf char *endptr = NULL; 252797ac58cSKevin Wolf long pattern; 253797ac58cSKevin Wolf 254797ac58cSKevin Wolf pattern = strtol(arg, &endptr, 0); 255797ac58cSKevin Wolf if (pattern < 0 || pattern > UCHAR_MAX || *endptr != '\0') { 256797ac58cSKevin Wolf printf("%s is not a valid pattern byte\n", arg); 257797ac58cSKevin Wolf return -1; 258797ac58cSKevin Wolf } 259797ac58cSKevin Wolf 260797ac58cSKevin Wolf return pattern; 261797ac58cSKevin Wolf } 262797ac58cSKevin Wolf 263797ac58cSKevin Wolf /* 264797ac58cSKevin Wolf * Memory allocation helpers. 265797ac58cSKevin Wolf * 266797ac58cSKevin Wolf * Make sure memory is aligned by default, or purposefully misaligned if 267797ac58cSKevin Wolf * that is specified on the command line. 268797ac58cSKevin Wolf */ 269797ac58cSKevin Wolf 270797ac58cSKevin Wolf #define MISALIGN_OFFSET 16 271797ac58cSKevin Wolf static void *qemu_io_alloc(BlockDriverState *bs, size_t len, int pattern) 272797ac58cSKevin Wolf { 273797ac58cSKevin Wolf void *buf; 274797ac58cSKevin Wolf 275797ac58cSKevin Wolf if (qemuio_misalign) { 276797ac58cSKevin Wolf len += MISALIGN_OFFSET; 277797ac58cSKevin Wolf } 278797ac58cSKevin Wolf buf = qemu_blockalign(bs, len); 279797ac58cSKevin Wolf memset(buf, pattern, len); 280797ac58cSKevin Wolf if (qemuio_misalign) { 281797ac58cSKevin Wolf buf += MISALIGN_OFFSET; 282797ac58cSKevin Wolf } 283797ac58cSKevin Wolf return buf; 284797ac58cSKevin Wolf } 285797ac58cSKevin Wolf 286797ac58cSKevin Wolf static void qemu_io_free(void *p) 287797ac58cSKevin Wolf { 288797ac58cSKevin Wolf if (qemuio_misalign) { 289797ac58cSKevin Wolf p -= MISALIGN_OFFSET; 290797ac58cSKevin Wolf } 291797ac58cSKevin Wolf qemu_vfree(p); 292797ac58cSKevin Wolf } 293797ac58cSKevin Wolf 294797ac58cSKevin Wolf static void dump_buffer(const void *buffer, int64_t offset, int len) 295797ac58cSKevin Wolf { 296797ac58cSKevin Wolf int i, j; 297797ac58cSKevin Wolf const uint8_t *p; 298797ac58cSKevin Wolf 299797ac58cSKevin Wolf for (i = 0, p = buffer; i < len; i += 16) { 300797ac58cSKevin Wolf const uint8_t *s = p; 301797ac58cSKevin Wolf 302797ac58cSKevin Wolf printf("%08" PRIx64 ": ", offset + i); 303797ac58cSKevin Wolf for (j = 0; j < 16 && i + j < len; j++, p++) { 304797ac58cSKevin Wolf printf("%02x ", *p); 305797ac58cSKevin Wolf } 306797ac58cSKevin Wolf printf(" "); 307797ac58cSKevin Wolf for (j = 0; j < 16 && i + j < len; j++, s++) { 308797ac58cSKevin Wolf if (isalnum(*s)) { 309797ac58cSKevin Wolf printf("%c", *s); 310797ac58cSKevin Wolf } else { 311797ac58cSKevin Wolf printf("."); 312797ac58cSKevin Wolf } 313797ac58cSKevin Wolf } 314797ac58cSKevin Wolf printf("\n"); 315797ac58cSKevin Wolf } 316797ac58cSKevin Wolf } 317797ac58cSKevin Wolf 318797ac58cSKevin Wolf static void print_report(const char *op, struct timeval *t, int64_t offset, 319797ac58cSKevin Wolf int count, int total, int cnt, int Cflag) 320797ac58cSKevin Wolf { 321797ac58cSKevin Wolf char s1[64], s2[64], ts[64]; 322797ac58cSKevin Wolf 323797ac58cSKevin Wolf timestr(t, ts, sizeof(ts), Cflag ? VERBOSE_FIXED_TIME : 0); 324797ac58cSKevin Wolf if (!Cflag) { 325797ac58cSKevin Wolf cvtstr((double)total, s1, sizeof(s1)); 326797ac58cSKevin Wolf cvtstr(tdiv((double)total, *t), s2, sizeof(s2)); 327797ac58cSKevin Wolf printf("%s %d/%d bytes at offset %" PRId64 "\n", 328797ac58cSKevin Wolf op, total, count, offset); 329797ac58cSKevin Wolf printf("%s, %d ops; %s (%s/sec and %.4f ops/sec)\n", 330797ac58cSKevin Wolf s1, cnt, ts, s2, tdiv((double)cnt, *t)); 331797ac58cSKevin Wolf } else {/* bytes,ops,time,bytes/sec,ops/sec */ 332797ac58cSKevin Wolf printf("%d,%d,%s,%.3f,%.3f\n", 333797ac58cSKevin Wolf total, cnt, ts, 334797ac58cSKevin Wolf tdiv((double)total, *t), 335797ac58cSKevin Wolf tdiv((double)cnt, *t)); 336797ac58cSKevin Wolf } 337797ac58cSKevin Wolf } 338797ac58cSKevin Wolf 339797ac58cSKevin Wolf /* 340797ac58cSKevin Wolf * Parse multiple length statements for vectored I/O, and construct an I/O 341797ac58cSKevin Wolf * vector matching it. 342797ac58cSKevin Wolf */ 343797ac58cSKevin Wolf static void * 344797ac58cSKevin Wolf create_iovec(BlockDriverState *bs, QEMUIOVector *qiov, char **argv, int nr_iov, 345797ac58cSKevin Wolf int pattern) 346797ac58cSKevin Wolf { 347797ac58cSKevin Wolf size_t *sizes = g_new0(size_t, nr_iov); 348797ac58cSKevin Wolf size_t count = 0; 349797ac58cSKevin Wolf void *buf = NULL; 350797ac58cSKevin Wolf void *p; 351797ac58cSKevin Wolf int i; 352797ac58cSKevin Wolf 353797ac58cSKevin Wolf for (i = 0; i < nr_iov; i++) { 354797ac58cSKevin Wolf char *arg = argv[i]; 355797ac58cSKevin Wolf int64_t len; 356797ac58cSKevin Wolf 357797ac58cSKevin Wolf len = cvtnum(arg); 358797ac58cSKevin Wolf if (len < 0) { 359797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", arg); 360797ac58cSKevin Wolf goto fail; 361797ac58cSKevin Wolf } 362797ac58cSKevin Wolf 363797ac58cSKevin Wolf /* should be SIZE_T_MAX, but that doesn't exist */ 364797ac58cSKevin Wolf if (len > INT_MAX) { 365797ac58cSKevin Wolf printf("too large length argument -- %s\n", arg); 366797ac58cSKevin Wolf goto fail; 367797ac58cSKevin Wolf } 368797ac58cSKevin Wolf 369797ac58cSKevin Wolf if (len & 0x1ff) { 370797ac58cSKevin Wolf printf("length argument %" PRId64 371797ac58cSKevin Wolf " is not sector aligned\n", len); 372797ac58cSKevin Wolf goto fail; 373797ac58cSKevin Wolf } 374797ac58cSKevin Wolf 375797ac58cSKevin Wolf sizes[i] = len; 376797ac58cSKevin Wolf count += len; 377797ac58cSKevin Wolf } 378797ac58cSKevin Wolf 379797ac58cSKevin Wolf qemu_iovec_init(qiov, nr_iov); 380797ac58cSKevin Wolf 381797ac58cSKevin Wolf buf = p = qemu_io_alloc(bs, count, pattern); 382797ac58cSKevin Wolf 383797ac58cSKevin Wolf for (i = 0; i < nr_iov; i++) { 384797ac58cSKevin Wolf qemu_iovec_add(qiov, p, sizes[i]); 385797ac58cSKevin Wolf p += sizes[i]; 386797ac58cSKevin Wolf } 387797ac58cSKevin Wolf 388797ac58cSKevin Wolf fail: 389797ac58cSKevin Wolf g_free(sizes); 390797ac58cSKevin Wolf return buf; 391797ac58cSKevin Wolf } 392797ac58cSKevin Wolf 393797ac58cSKevin Wolf static int do_read(BlockDriverState *bs, char *buf, int64_t offset, int count, 394797ac58cSKevin Wolf int *total) 395797ac58cSKevin Wolf { 396797ac58cSKevin Wolf int ret; 397797ac58cSKevin Wolf 398797ac58cSKevin Wolf ret = bdrv_read(bs, offset >> 9, (uint8_t *)buf, count >> 9); 399797ac58cSKevin Wolf if (ret < 0) { 400797ac58cSKevin Wolf return ret; 401797ac58cSKevin Wolf } 402797ac58cSKevin Wolf *total = count; 403797ac58cSKevin Wolf return 1; 404797ac58cSKevin Wolf } 405797ac58cSKevin Wolf 406797ac58cSKevin Wolf static int do_write(BlockDriverState *bs, char *buf, int64_t offset, int count, 407797ac58cSKevin Wolf int *total) 408797ac58cSKevin Wolf { 409797ac58cSKevin Wolf int ret; 410797ac58cSKevin Wolf 411797ac58cSKevin Wolf ret = bdrv_write(bs, offset >> 9, (uint8_t *)buf, count >> 9); 412797ac58cSKevin Wolf if (ret < 0) { 413797ac58cSKevin Wolf return ret; 414797ac58cSKevin Wolf } 415797ac58cSKevin Wolf *total = count; 416797ac58cSKevin Wolf return 1; 417797ac58cSKevin Wolf } 418797ac58cSKevin Wolf 419797ac58cSKevin Wolf static int do_pread(BlockDriverState *bs, char *buf, int64_t offset, int count, 420797ac58cSKevin Wolf int *total) 421797ac58cSKevin Wolf { 422797ac58cSKevin Wolf *total = bdrv_pread(bs, offset, (uint8_t *)buf, count); 423797ac58cSKevin Wolf if (*total < 0) { 424797ac58cSKevin Wolf return *total; 425797ac58cSKevin Wolf } 426797ac58cSKevin Wolf return 1; 427797ac58cSKevin Wolf } 428797ac58cSKevin Wolf 429797ac58cSKevin Wolf static int do_pwrite(BlockDriverState *bs, char *buf, int64_t offset, int count, 430797ac58cSKevin Wolf int *total) 431797ac58cSKevin Wolf { 432797ac58cSKevin Wolf *total = bdrv_pwrite(bs, offset, (uint8_t *)buf, count); 433797ac58cSKevin Wolf if (*total < 0) { 434797ac58cSKevin Wolf return *total; 435797ac58cSKevin Wolf } 436797ac58cSKevin Wolf return 1; 437797ac58cSKevin Wolf } 438797ac58cSKevin Wolf 439797ac58cSKevin Wolf typedef struct { 440797ac58cSKevin Wolf BlockDriverState *bs; 441797ac58cSKevin Wolf int64_t offset; 442797ac58cSKevin Wolf int count; 443797ac58cSKevin Wolf int *total; 444797ac58cSKevin Wolf int ret; 445797ac58cSKevin Wolf bool done; 446797ac58cSKevin Wolf } CoWriteZeroes; 447797ac58cSKevin Wolf 448797ac58cSKevin Wolf static void coroutine_fn co_write_zeroes_entry(void *opaque) 449797ac58cSKevin Wolf { 450797ac58cSKevin Wolf CoWriteZeroes *data = opaque; 451797ac58cSKevin Wolf 452797ac58cSKevin Wolf data->ret = bdrv_co_write_zeroes(data->bs, data->offset / BDRV_SECTOR_SIZE, 453aa7bfbffSPeter Lieven data->count / BDRV_SECTOR_SIZE, 0); 454797ac58cSKevin Wolf data->done = true; 455797ac58cSKevin Wolf if (data->ret < 0) { 456797ac58cSKevin Wolf *data->total = data->ret; 457797ac58cSKevin Wolf return; 458797ac58cSKevin Wolf } 459797ac58cSKevin Wolf 460797ac58cSKevin Wolf *data->total = data->count; 461797ac58cSKevin Wolf } 462797ac58cSKevin Wolf 463797ac58cSKevin Wolf static int do_co_write_zeroes(BlockDriverState *bs, int64_t offset, int count, 464797ac58cSKevin Wolf int *total) 465797ac58cSKevin Wolf { 466797ac58cSKevin Wolf Coroutine *co; 467797ac58cSKevin Wolf CoWriteZeroes data = { 468797ac58cSKevin Wolf .bs = bs, 469797ac58cSKevin Wolf .offset = offset, 470797ac58cSKevin Wolf .count = count, 471797ac58cSKevin Wolf .total = total, 472797ac58cSKevin Wolf .done = false, 473797ac58cSKevin Wolf }; 474797ac58cSKevin Wolf 475797ac58cSKevin Wolf co = qemu_coroutine_create(co_write_zeroes_entry); 476797ac58cSKevin Wolf qemu_coroutine_enter(co, &data); 477797ac58cSKevin Wolf while (!data.done) { 478b47ec2c4SPaolo Bonzini aio_poll(bdrv_get_aio_context(bs), true); 479797ac58cSKevin Wolf } 480797ac58cSKevin Wolf if (data.ret < 0) { 481797ac58cSKevin Wolf return data.ret; 482797ac58cSKevin Wolf } else { 483797ac58cSKevin Wolf return 1; 484797ac58cSKevin Wolf } 485797ac58cSKevin Wolf } 486797ac58cSKevin Wolf 487797ac58cSKevin Wolf static int do_write_compressed(BlockDriverState *bs, char *buf, int64_t offset, 488797ac58cSKevin Wolf int count, int *total) 489797ac58cSKevin Wolf { 490797ac58cSKevin Wolf int ret; 491797ac58cSKevin Wolf 492797ac58cSKevin Wolf ret = bdrv_write_compressed(bs, offset >> 9, (uint8_t *)buf, count >> 9); 493797ac58cSKevin Wolf if (ret < 0) { 494797ac58cSKevin Wolf return ret; 495797ac58cSKevin Wolf } 496797ac58cSKevin Wolf *total = count; 497797ac58cSKevin Wolf return 1; 498797ac58cSKevin Wolf } 499797ac58cSKevin Wolf 500797ac58cSKevin Wolf static int do_load_vmstate(BlockDriverState *bs, char *buf, int64_t offset, 501797ac58cSKevin Wolf int count, int *total) 502797ac58cSKevin Wolf { 503797ac58cSKevin Wolf *total = bdrv_load_vmstate(bs, (uint8_t *)buf, offset, count); 504797ac58cSKevin Wolf if (*total < 0) { 505797ac58cSKevin Wolf return *total; 506797ac58cSKevin Wolf } 507797ac58cSKevin Wolf return 1; 508797ac58cSKevin Wolf } 509797ac58cSKevin Wolf 510797ac58cSKevin Wolf static int do_save_vmstate(BlockDriverState *bs, char *buf, int64_t offset, 511797ac58cSKevin Wolf int count, int *total) 512797ac58cSKevin Wolf { 513797ac58cSKevin Wolf *total = bdrv_save_vmstate(bs, (uint8_t *)buf, offset, count); 514797ac58cSKevin Wolf if (*total < 0) { 515797ac58cSKevin Wolf return *total; 516797ac58cSKevin Wolf } 517797ac58cSKevin Wolf return 1; 518797ac58cSKevin Wolf } 519797ac58cSKevin Wolf 520797ac58cSKevin Wolf #define NOT_DONE 0x7fffffff 521797ac58cSKevin Wolf static void aio_rw_done(void *opaque, int ret) 522797ac58cSKevin Wolf { 523797ac58cSKevin Wolf *(int *)opaque = ret; 524797ac58cSKevin Wolf } 525797ac58cSKevin Wolf 526797ac58cSKevin Wolf static int do_aio_readv(BlockDriverState *bs, QEMUIOVector *qiov, 527797ac58cSKevin Wolf int64_t offset, int *total) 528797ac58cSKevin Wolf { 529797ac58cSKevin Wolf int async_ret = NOT_DONE; 530797ac58cSKevin Wolf 531797ac58cSKevin Wolf bdrv_aio_readv(bs, offset >> 9, qiov, qiov->size >> 9, 532797ac58cSKevin Wolf aio_rw_done, &async_ret); 533797ac58cSKevin Wolf while (async_ret == NOT_DONE) { 534797ac58cSKevin Wolf main_loop_wait(false); 535797ac58cSKevin Wolf } 536797ac58cSKevin Wolf 537797ac58cSKevin Wolf *total = qiov->size; 538797ac58cSKevin Wolf return async_ret < 0 ? async_ret : 1; 539797ac58cSKevin Wolf } 540797ac58cSKevin Wolf 541797ac58cSKevin Wolf static int do_aio_writev(BlockDriverState *bs, QEMUIOVector *qiov, 542797ac58cSKevin Wolf int64_t offset, int *total) 543797ac58cSKevin Wolf { 544797ac58cSKevin Wolf int async_ret = NOT_DONE; 545797ac58cSKevin Wolf 546797ac58cSKevin Wolf bdrv_aio_writev(bs, offset >> 9, qiov, qiov->size >> 9, 547797ac58cSKevin Wolf aio_rw_done, &async_ret); 548797ac58cSKevin Wolf while (async_ret == NOT_DONE) { 549797ac58cSKevin Wolf main_loop_wait(false); 550797ac58cSKevin Wolf } 551797ac58cSKevin Wolf 552797ac58cSKevin Wolf *total = qiov->size; 553797ac58cSKevin Wolf return async_ret < 0 ? async_ret : 1; 554797ac58cSKevin Wolf } 555797ac58cSKevin Wolf 556797ac58cSKevin Wolf struct multiwrite_async_ret { 557797ac58cSKevin Wolf int num_done; 558797ac58cSKevin Wolf int error; 559797ac58cSKevin Wolf }; 560797ac58cSKevin Wolf 561797ac58cSKevin Wolf static void multiwrite_cb(void *opaque, int ret) 562797ac58cSKevin Wolf { 563797ac58cSKevin Wolf struct multiwrite_async_ret *async_ret = opaque; 564797ac58cSKevin Wolf 565797ac58cSKevin Wolf async_ret->num_done++; 566797ac58cSKevin Wolf if (ret < 0) { 567797ac58cSKevin Wolf async_ret->error = ret; 568797ac58cSKevin Wolf } 569797ac58cSKevin Wolf } 570797ac58cSKevin Wolf 571797ac58cSKevin Wolf static int do_aio_multiwrite(BlockDriverState *bs, BlockRequest* reqs, 572797ac58cSKevin Wolf int num_reqs, int *total) 573797ac58cSKevin Wolf { 574797ac58cSKevin Wolf int i, ret; 575797ac58cSKevin Wolf struct multiwrite_async_ret async_ret = { 576797ac58cSKevin Wolf .num_done = 0, 577797ac58cSKevin Wolf .error = 0, 578797ac58cSKevin Wolf }; 579797ac58cSKevin Wolf 580797ac58cSKevin Wolf *total = 0; 581797ac58cSKevin Wolf for (i = 0; i < num_reqs; i++) { 582797ac58cSKevin Wolf reqs[i].cb = multiwrite_cb; 583797ac58cSKevin Wolf reqs[i].opaque = &async_ret; 584797ac58cSKevin Wolf *total += reqs[i].qiov->size; 585797ac58cSKevin Wolf } 586797ac58cSKevin Wolf 587797ac58cSKevin Wolf ret = bdrv_aio_multiwrite(bs, reqs, num_reqs); 588797ac58cSKevin Wolf if (ret < 0) { 589797ac58cSKevin Wolf return ret; 590797ac58cSKevin Wolf } 591797ac58cSKevin Wolf 592797ac58cSKevin Wolf while (async_ret.num_done < num_reqs) { 593797ac58cSKevin Wolf main_loop_wait(false); 594797ac58cSKevin Wolf } 595797ac58cSKevin Wolf 596797ac58cSKevin Wolf return async_ret.error < 0 ? async_ret.error : 1; 597797ac58cSKevin Wolf } 598797ac58cSKevin Wolf 599797ac58cSKevin Wolf static void read_help(void) 600797ac58cSKevin Wolf { 601797ac58cSKevin Wolf printf( 602797ac58cSKevin Wolf "\n" 603797ac58cSKevin Wolf " reads a range of bytes from the given offset\n" 604797ac58cSKevin Wolf "\n" 605797ac58cSKevin Wolf " Example:\n" 606797ac58cSKevin Wolf " 'read -v 512 1k' - dumps 1 kilobyte read from 512 bytes into the file\n" 607797ac58cSKevin Wolf "\n" 608797ac58cSKevin Wolf " Reads a segment of the currently open file, optionally dumping it to the\n" 609797ac58cSKevin Wolf " standard output stream (with -v option) for subsequent inspection.\n" 610797ac58cSKevin Wolf " -b, -- read from the VM state rather than the virtual disk\n" 611797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 612797ac58cSKevin Wolf " -l, -- length for pattern verification (only with -P)\n" 613797ac58cSKevin Wolf " -p, -- use bdrv_pread to read the file\n" 614797ac58cSKevin Wolf " -P, -- use a pattern to verify read data\n" 615797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 616797ac58cSKevin Wolf " -s, -- start offset for pattern verification (only with -P)\n" 617797ac58cSKevin Wolf " -v, -- dump buffer to standard output\n" 618797ac58cSKevin Wolf "\n"); 619797ac58cSKevin Wolf } 620797ac58cSKevin Wolf 621797ac58cSKevin Wolf static int read_f(BlockDriverState *bs, int argc, char **argv); 622797ac58cSKevin Wolf 623797ac58cSKevin Wolf static const cmdinfo_t read_cmd = { 624797ac58cSKevin Wolf .name = "read", 625797ac58cSKevin Wolf .altname = "r", 626797ac58cSKevin Wolf .cfunc = read_f, 627797ac58cSKevin Wolf .argmin = 2, 628797ac58cSKevin Wolf .argmax = -1, 629797ac58cSKevin Wolf .args = "[-abCpqv] [-P pattern [-s off] [-l len]] off len", 630797ac58cSKevin Wolf .oneline = "reads a number of bytes at a specified offset", 631797ac58cSKevin Wolf .help = read_help, 632797ac58cSKevin Wolf }; 633797ac58cSKevin Wolf 634797ac58cSKevin Wolf static int read_f(BlockDriverState *bs, int argc, char **argv) 635797ac58cSKevin Wolf { 636797ac58cSKevin Wolf struct timeval t1, t2; 637797ac58cSKevin Wolf int Cflag = 0, pflag = 0, qflag = 0, vflag = 0; 638797ac58cSKevin Wolf int Pflag = 0, sflag = 0, lflag = 0, bflag = 0; 639797ac58cSKevin Wolf int c, cnt; 640797ac58cSKevin Wolf char *buf; 641797ac58cSKevin Wolf int64_t offset; 642797ac58cSKevin Wolf int count; 643797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 644797ac58cSKevin Wolf int total = 0; 645797ac58cSKevin Wolf int pattern = 0, pattern_offset = 0, pattern_count = 0; 646797ac58cSKevin Wolf 647797ac58cSKevin Wolf while ((c = getopt(argc, argv, "bCl:pP:qs:v")) != EOF) { 648797ac58cSKevin Wolf switch (c) { 649797ac58cSKevin Wolf case 'b': 650797ac58cSKevin Wolf bflag = 1; 651797ac58cSKevin Wolf break; 652797ac58cSKevin Wolf case 'C': 653797ac58cSKevin Wolf Cflag = 1; 654797ac58cSKevin Wolf break; 655797ac58cSKevin Wolf case 'l': 656797ac58cSKevin Wolf lflag = 1; 657797ac58cSKevin Wolf pattern_count = cvtnum(optarg); 658797ac58cSKevin Wolf if (pattern_count < 0) { 659797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", optarg); 660797ac58cSKevin Wolf return 0; 661797ac58cSKevin Wolf } 662797ac58cSKevin Wolf break; 663797ac58cSKevin Wolf case 'p': 664797ac58cSKevin Wolf pflag = 1; 665797ac58cSKevin Wolf break; 666797ac58cSKevin Wolf case 'P': 667797ac58cSKevin Wolf Pflag = 1; 668797ac58cSKevin Wolf pattern = parse_pattern(optarg); 669797ac58cSKevin Wolf if (pattern < 0) { 670797ac58cSKevin Wolf return 0; 671797ac58cSKevin Wolf } 672797ac58cSKevin Wolf break; 673797ac58cSKevin Wolf case 'q': 674797ac58cSKevin Wolf qflag = 1; 675797ac58cSKevin Wolf break; 676797ac58cSKevin Wolf case 's': 677797ac58cSKevin Wolf sflag = 1; 678797ac58cSKevin Wolf pattern_offset = cvtnum(optarg); 679797ac58cSKevin Wolf if (pattern_offset < 0) { 680797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", optarg); 681797ac58cSKevin Wolf return 0; 682797ac58cSKevin Wolf } 683797ac58cSKevin Wolf break; 684797ac58cSKevin Wolf case 'v': 685797ac58cSKevin Wolf vflag = 1; 686797ac58cSKevin Wolf break; 687797ac58cSKevin Wolf default: 688c2cdf5c5SKevin Wolf return qemuio_command_usage(&read_cmd); 689797ac58cSKevin Wolf } 690797ac58cSKevin Wolf } 691797ac58cSKevin Wolf 692797ac58cSKevin Wolf if (optind != argc - 2) { 693c2cdf5c5SKevin Wolf return qemuio_command_usage(&read_cmd); 694797ac58cSKevin Wolf } 695797ac58cSKevin Wolf 696797ac58cSKevin Wolf if (bflag && pflag) { 697797ac58cSKevin Wolf printf("-b and -p cannot be specified at the same time\n"); 698797ac58cSKevin Wolf return 0; 699797ac58cSKevin Wolf } 700797ac58cSKevin Wolf 701797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 702797ac58cSKevin Wolf if (offset < 0) { 703797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 704797ac58cSKevin Wolf return 0; 705797ac58cSKevin Wolf } 706797ac58cSKevin Wolf 707797ac58cSKevin Wolf optind++; 708797ac58cSKevin Wolf count = cvtnum(argv[optind]); 709797ac58cSKevin Wolf if (count < 0) { 710797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 711797ac58cSKevin Wolf return 0; 712797ac58cSKevin Wolf } 713797ac58cSKevin Wolf 714797ac58cSKevin Wolf if (!Pflag && (lflag || sflag)) { 715c2cdf5c5SKevin Wolf return qemuio_command_usage(&read_cmd); 716797ac58cSKevin Wolf } 717797ac58cSKevin Wolf 718797ac58cSKevin Wolf if (!lflag) { 719797ac58cSKevin Wolf pattern_count = count - pattern_offset; 720797ac58cSKevin Wolf } 721797ac58cSKevin Wolf 722797ac58cSKevin Wolf if ((pattern_count < 0) || (pattern_count + pattern_offset > count)) { 723797ac58cSKevin Wolf printf("pattern verification range exceeds end of read data\n"); 724797ac58cSKevin Wolf return 0; 725797ac58cSKevin Wolf } 726797ac58cSKevin Wolf 727797ac58cSKevin Wolf if (!pflag) { 728797ac58cSKevin Wolf if (offset & 0x1ff) { 729797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 730797ac58cSKevin Wolf offset); 731797ac58cSKevin Wolf return 0; 732797ac58cSKevin Wolf } 733797ac58cSKevin Wolf if (count & 0x1ff) { 734797ac58cSKevin Wolf printf("count %d is not sector aligned\n", 735797ac58cSKevin Wolf count); 736797ac58cSKevin Wolf return 0; 737797ac58cSKevin Wolf } 738797ac58cSKevin Wolf } 739797ac58cSKevin Wolf 740797ac58cSKevin Wolf buf = qemu_io_alloc(bs, count, 0xab); 741797ac58cSKevin Wolf 742797ac58cSKevin Wolf gettimeofday(&t1, NULL); 743797ac58cSKevin Wolf if (pflag) { 744797ac58cSKevin Wolf cnt = do_pread(bs, buf, offset, count, &total); 745797ac58cSKevin Wolf } else if (bflag) { 746797ac58cSKevin Wolf cnt = do_load_vmstate(bs, buf, offset, count, &total); 747797ac58cSKevin Wolf } else { 748797ac58cSKevin Wolf cnt = do_read(bs, buf, offset, count, &total); 749797ac58cSKevin Wolf } 750797ac58cSKevin Wolf gettimeofday(&t2, NULL); 751797ac58cSKevin Wolf 752797ac58cSKevin Wolf if (cnt < 0) { 753797ac58cSKevin Wolf printf("read failed: %s\n", strerror(-cnt)); 754797ac58cSKevin Wolf goto out; 755797ac58cSKevin Wolf } 756797ac58cSKevin Wolf 757797ac58cSKevin Wolf if (Pflag) { 758797ac58cSKevin Wolf void *cmp_buf = g_malloc(pattern_count); 759797ac58cSKevin Wolf memset(cmp_buf, pattern, pattern_count); 760797ac58cSKevin Wolf if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) { 761797ac58cSKevin Wolf printf("Pattern verification failed at offset %" 762797ac58cSKevin Wolf PRId64 ", %d bytes\n", 763797ac58cSKevin Wolf offset + pattern_offset, pattern_count); 764797ac58cSKevin Wolf } 765797ac58cSKevin Wolf g_free(cmp_buf); 766797ac58cSKevin Wolf } 767797ac58cSKevin Wolf 768797ac58cSKevin Wolf if (qflag) { 769797ac58cSKevin Wolf goto out; 770797ac58cSKevin Wolf } 771797ac58cSKevin Wolf 772797ac58cSKevin Wolf if (vflag) { 773797ac58cSKevin Wolf dump_buffer(buf, offset, count); 774797ac58cSKevin Wolf } 775797ac58cSKevin Wolf 776797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 777797ac58cSKevin Wolf t2 = tsub(t2, t1); 778797ac58cSKevin Wolf print_report("read", &t2, offset, count, total, cnt, Cflag); 779797ac58cSKevin Wolf 780797ac58cSKevin Wolf out: 781797ac58cSKevin Wolf qemu_io_free(buf); 782797ac58cSKevin Wolf 783797ac58cSKevin Wolf return 0; 784797ac58cSKevin Wolf } 785797ac58cSKevin Wolf 786797ac58cSKevin Wolf static void readv_help(void) 787797ac58cSKevin Wolf { 788797ac58cSKevin Wolf printf( 789797ac58cSKevin Wolf "\n" 790797ac58cSKevin Wolf " reads a range of bytes from the given offset into multiple buffers\n" 791797ac58cSKevin Wolf "\n" 792797ac58cSKevin Wolf " Example:\n" 793797ac58cSKevin Wolf " 'readv -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" 794797ac58cSKevin Wolf "\n" 795797ac58cSKevin Wolf " Reads a segment of the currently open file, optionally dumping it to the\n" 796797ac58cSKevin Wolf " standard output stream (with -v option) for subsequent inspection.\n" 797797ac58cSKevin Wolf " Uses multiple iovec buffers if more than one byte range is specified.\n" 798797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 799797ac58cSKevin Wolf " -P, -- use a pattern to verify read data\n" 800797ac58cSKevin Wolf " -v, -- dump buffer to standard output\n" 801797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 802797ac58cSKevin Wolf "\n"); 803797ac58cSKevin Wolf } 804797ac58cSKevin Wolf 805797ac58cSKevin Wolf static int readv_f(BlockDriverState *bs, int argc, char **argv); 806797ac58cSKevin Wolf 807797ac58cSKevin Wolf static const cmdinfo_t readv_cmd = { 808797ac58cSKevin Wolf .name = "readv", 809797ac58cSKevin Wolf .cfunc = readv_f, 810797ac58cSKevin Wolf .argmin = 2, 811797ac58cSKevin Wolf .argmax = -1, 812797ac58cSKevin Wolf .args = "[-Cqv] [-P pattern ] off len [len..]", 813797ac58cSKevin Wolf .oneline = "reads a number of bytes at a specified offset", 814797ac58cSKevin Wolf .help = readv_help, 815797ac58cSKevin Wolf }; 816797ac58cSKevin Wolf 817797ac58cSKevin Wolf static int readv_f(BlockDriverState *bs, int argc, char **argv) 818797ac58cSKevin Wolf { 819797ac58cSKevin Wolf struct timeval t1, t2; 820797ac58cSKevin Wolf int Cflag = 0, qflag = 0, vflag = 0; 821797ac58cSKevin Wolf int c, cnt; 822797ac58cSKevin Wolf char *buf; 823797ac58cSKevin Wolf int64_t offset; 824797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 825797ac58cSKevin Wolf int total = 0; 826797ac58cSKevin Wolf int nr_iov; 827797ac58cSKevin Wolf QEMUIOVector qiov; 828797ac58cSKevin Wolf int pattern = 0; 829797ac58cSKevin Wolf int Pflag = 0; 830797ac58cSKevin Wolf 831797ac58cSKevin Wolf while ((c = getopt(argc, argv, "CP:qv")) != EOF) { 832797ac58cSKevin Wolf switch (c) { 833797ac58cSKevin Wolf case 'C': 834797ac58cSKevin Wolf Cflag = 1; 835797ac58cSKevin Wolf break; 836797ac58cSKevin Wolf case 'P': 837797ac58cSKevin Wolf Pflag = 1; 838797ac58cSKevin Wolf pattern = parse_pattern(optarg); 839797ac58cSKevin Wolf if (pattern < 0) { 840797ac58cSKevin Wolf return 0; 841797ac58cSKevin Wolf } 842797ac58cSKevin Wolf break; 843797ac58cSKevin Wolf case 'q': 844797ac58cSKevin Wolf qflag = 1; 845797ac58cSKevin Wolf break; 846797ac58cSKevin Wolf case 'v': 847797ac58cSKevin Wolf vflag = 1; 848797ac58cSKevin Wolf break; 849797ac58cSKevin Wolf default: 850c2cdf5c5SKevin Wolf return qemuio_command_usage(&readv_cmd); 851797ac58cSKevin Wolf } 852797ac58cSKevin Wolf } 853797ac58cSKevin Wolf 854797ac58cSKevin Wolf if (optind > argc - 2) { 855c2cdf5c5SKevin Wolf return qemuio_command_usage(&readv_cmd); 856797ac58cSKevin Wolf } 857797ac58cSKevin Wolf 858797ac58cSKevin Wolf 859797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 860797ac58cSKevin Wolf if (offset < 0) { 861797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 862797ac58cSKevin Wolf return 0; 863797ac58cSKevin Wolf } 864797ac58cSKevin Wolf optind++; 865797ac58cSKevin Wolf 866797ac58cSKevin Wolf if (offset & 0x1ff) { 867797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 868797ac58cSKevin Wolf offset); 869797ac58cSKevin Wolf return 0; 870797ac58cSKevin Wolf } 871797ac58cSKevin Wolf 872797ac58cSKevin Wolf nr_iov = argc - optind; 873797ac58cSKevin Wolf buf = create_iovec(bs, &qiov, &argv[optind], nr_iov, 0xab); 874797ac58cSKevin Wolf if (buf == NULL) { 875797ac58cSKevin Wolf return 0; 876797ac58cSKevin Wolf } 877797ac58cSKevin Wolf 878797ac58cSKevin Wolf gettimeofday(&t1, NULL); 879797ac58cSKevin Wolf cnt = do_aio_readv(bs, &qiov, offset, &total); 880797ac58cSKevin Wolf gettimeofday(&t2, NULL); 881797ac58cSKevin Wolf 882797ac58cSKevin Wolf if (cnt < 0) { 883797ac58cSKevin Wolf printf("readv failed: %s\n", strerror(-cnt)); 884797ac58cSKevin Wolf goto out; 885797ac58cSKevin Wolf } 886797ac58cSKevin Wolf 887797ac58cSKevin Wolf if (Pflag) { 888797ac58cSKevin Wolf void *cmp_buf = g_malloc(qiov.size); 889797ac58cSKevin Wolf memset(cmp_buf, pattern, qiov.size); 890797ac58cSKevin Wolf if (memcmp(buf, cmp_buf, qiov.size)) { 891797ac58cSKevin Wolf printf("Pattern verification failed at offset %" 892797ac58cSKevin Wolf PRId64 ", %zd bytes\n", offset, qiov.size); 893797ac58cSKevin Wolf } 894797ac58cSKevin Wolf g_free(cmp_buf); 895797ac58cSKevin Wolf } 896797ac58cSKevin Wolf 897797ac58cSKevin Wolf if (qflag) { 898797ac58cSKevin Wolf goto out; 899797ac58cSKevin Wolf } 900797ac58cSKevin Wolf 901797ac58cSKevin Wolf if (vflag) { 902797ac58cSKevin Wolf dump_buffer(buf, offset, qiov.size); 903797ac58cSKevin Wolf } 904797ac58cSKevin Wolf 905797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 906797ac58cSKevin Wolf t2 = tsub(t2, t1); 907797ac58cSKevin Wolf print_report("read", &t2, offset, qiov.size, total, cnt, Cflag); 908797ac58cSKevin Wolf 909797ac58cSKevin Wolf out: 910797ac58cSKevin Wolf qemu_iovec_destroy(&qiov); 911797ac58cSKevin Wolf qemu_io_free(buf); 912797ac58cSKevin Wolf return 0; 913797ac58cSKevin Wolf } 914797ac58cSKevin Wolf 915797ac58cSKevin Wolf static void write_help(void) 916797ac58cSKevin Wolf { 917797ac58cSKevin Wolf printf( 918797ac58cSKevin Wolf "\n" 919797ac58cSKevin Wolf " writes a range of bytes from the given offset\n" 920797ac58cSKevin Wolf "\n" 921797ac58cSKevin Wolf " Example:\n" 922797ac58cSKevin Wolf " 'write 512 1k' - writes 1 kilobyte at 512 bytes into the open file\n" 923797ac58cSKevin Wolf "\n" 924797ac58cSKevin Wolf " Writes into a segment of the currently open file, using a buffer\n" 925797ac58cSKevin Wolf " filled with a set pattern (0xcdcdcdcd).\n" 926797ac58cSKevin Wolf " -b, -- write to the VM state rather than the virtual disk\n" 927797ac58cSKevin Wolf " -c, -- write compressed data with bdrv_write_compressed\n" 928797ac58cSKevin Wolf " -p, -- use bdrv_pwrite to write the file\n" 929797ac58cSKevin Wolf " -P, -- use different pattern to fill file\n" 930797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 931797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 932797ac58cSKevin Wolf " -z, -- write zeroes using bdrv_co_write_zeroes\n" 933797ac58cSKevin Wolf "\n"); 934797ac58cSKevin Wolf } 935797ac58cSKevin Wolf 936797ac58cSKevin Wolf static int write_f(BlockDriverState *bs, int argc, char **argv); 937797ac58cSKevin Wolf 938797ac58cSKevin Wolf static const cmdinfo_t write_cmd = { 939797ac58cSKevin Wolf .name = "write", 940797ac58cSKevin Wolf .altname = "w", 941797ac58cSKevin Wolf .cfunc = write_f, 942797ac58cSKevin Wolf .argmin = 2, 943797ac58cSKevin Wolf .argmax = -1, 944797ac58cSKevin Wolf .args = "[-bcCpqz] [-P pattern ] off len", 945797ac58cSKevin Wolf .oneline = "writes a number of bytes at a specified offset", 946797ac58cSKevin Wolf .help = write_help, 947797ac58cSKevin Wolf }; 948797ac58cSKevin Wolf 949797ac58cSKevin Wolf static int write_f(BlockDriverState *bs, int argc, char **argv) 950797ac58cSKevin Wolf { 951797ac58cSKevin Wolf struct timeval t1, t2; 952797ac58cSKevin Wolf int Cflag = 0, pflag = 0, qflag = 0, bflag = 0, Pflag = 0, zflag = 0; 953797ac58cSKevin Wolf int cflag = 0; 954797ac58cSKevin Wolf int c, cnt; 955797ac58cSKevin Wolf char *buf = NULL; 956797ac58cSKevin Wolf int64_t offset; 957797ac58cSKevin Wolf int count; 958797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 959797ac58cSKevin Wolf int total = 0; 960797ac58cSKevin Wolf int pattern = 0xcd; 961797ac58cSKevin Wolf 962797ac58cSKevin Wolf while ((c = getopt(argc, argv, "bcCpP:qz")) != EOF) { 963797ac58cSKevin Wolf switch (c) { 964797ac58cSKevin Wolf case 'b': 965797ac58cSKevin Wolf bflag = 1; 966797ac58cSKevin Wolf break; 967797ac58cSKevin Wolf case 'c': 968797ac58cSKevin Wolf cflag = 1; 969797ac58cSKevin Wolf break; 970797ac58cSKevin Wolf case 'C': 971797ac58cSKevin Wolf Cflag = 1; 972797ac58cSKevin Wolf break; 973797ac58cSKevin Wolf case 'p': 974797ac58cSKevin Wolf pflag = 1; 975797ac58cSKevin Wolf break; 976797ac58cSKevin Wolf case 'P': 977797ac58cSKevin Wolf Pflag = 1; 978797ac58cSKevin Wolf pattern = parse_pattern(optarg); 979797ac58cSKevin Wolf if (pattern < 0) { 980797ac58cSKevin Wolf return 0; 981797ac58cSKevin Wolf } 982797ac58cSKevin Wolf break; 983797ac58cSKevin Wolf case 'q': 984797ac58cSKevin Wolf qflag = 1; 985797ac58cSKevin Wolf break; 986797ac58cSKevin Wolf case 'z': 987797ac58cSKevin Wolf zflag = 1; 988797ac58cSKevin Wolf break; 989797ac58cSKevin Wolf default: 990c2cdf5c5SKevin Wolf return qemuio_command_usage(&write_cmd); 991797ac58cSKevin Wolf } 992797ac58cSKevin Wolf } 993797ac58cSKevin Wolf 994797ac58cSKevin Wolf if (optind != argc - 2) { 995c2cdf5c5SKevin Wolf return qemuio_command_usage(&write_cmd); 996797ac58cSKevin Wolf } 997797ac58cSKevin Wolf 998797ac58cSKevin Wolf if (bflag + pflag + zflag > 1) { 999797ac58cSKevin Wolf printf("-b, -p, or -z cannot be specified at the same time\n"); 1000797ac58cSKevin Wolf return 0; 1001797ac58cSKevin Wolf } 1002797ac58cSKevin Wolf 1003797ac58cSKevin Wolf if (zflag && Pflag) { 1004797ac58cSKevin Wolf printf("-z and -P cannot be specified at the same time\n"); 1005797ac58cSKevin Wolf return 0; 1006797ac58cSKevin Wolf } 1007797ac58cSKevin Wolf 1008797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 1009797ac58cSKevin Wolf if (offset < 0) { 1010797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 1011797ac58cSKevin Wolf return 0; 1012797ac58cSKevin Wolf } 1013797ac58cSKevin Wolf 1014797ac58cSKevin Wolf optind++; 1015797ac58cSKevin Wolf count = cvtnum(argv[optind]); 1016797ac58cSKevin Wolf if (count < 0) { 1017797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 1018797ac58cSKevin Wolf return 0; 1019797ac58cSKevin Wolf } 1020797ac58cSKevin Wolf 1021797ac58cSKevin Wolf if (!pflag) { 1022797ac58cSKevin Wolf if (offset & 0x1ff) { 1023797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1024797ac58cSKevin Wolf offset); 1025797ac58cSKevin Wolf return 0; 1026797ac58cSKevin Wolf } 1027797ac58cSKevin Wolf 1028797ac58cSKevin Wolf if (count & 0x1ff) { 1029797ac58cSKevin Wolf printf("count %d is not sector aligned\n", 1030797ac58cSKevin Wolf count); 1031797ac58cSKevin Wolf return 0; 1032797ac58cSKevin Wolf } 1033797ac58cSKevin Wolf } 1034797ac58cSKevin Wolf 1035797ac58cSKevin Wolf if (!zflag) { 1036797ac58cSKevin Wolf buf = qemu_io_alloc(bs, count, pattern); 1037797ac58cSKevin Wolf } 1038797ac58cSKevin Wolf 1039797ac58cSKevin Wolf gettimeofday(&t1, NULL); 1040797ac58cSKevin Wolf if (pflag) { 1041797ac58cSKevin Wolf cnt = do_pwrite(bs, buf, offset, count, &total); 1042797ac58cSKevin Wolf } else if (bflag) { 1043797ac58cSKevin Wolf cnt = do_save_vmstate(bs, buf, offset, count, &total); 1044797ac58cSKevin Wolf } else if (zflag) { 1045797ac58cSKevin Wolf cnt = do_co_write_zeroes(bs, offset, count, &total); 1046797ac58cSKevin Wolf } else if (cflag) { 1047797ac58cSKevin Wolf cnt = do_write_compressed(bs, buf, offset, count, &total); 1048797ac58cSKevin Wolf } else { 1049797ac58cSKevin Wolf cnt = do_write(bs, buf, offset, count, &total); 1050797ac58cSKevin Wolf } 1051797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1052797ac58cSKevin Wolf 1053797ac58cSKevin Wolf if (cnt < 0) { 1054797ac58cSKevin Wolf printf("write failed: %s\n", strerror(-cnt)); 1055797ac58cSKevin Wolf goto out; 1056797ac58cSKevin Wolf } 1057797ac58cSKevin Wolf 1058797ac58cSKevin Wolf if (qflag) { 1059797ac58cSKevin Wolf goto out; 1060797ac58cSKevin Wolf } 1061797ac58cSKevin Wolf 1062797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1063797ac58cSKevin Wolf t2 = tsub(t2, t1); 1064797ac58cSKevin Wolf print_report("wrote", &t2, offset, count, total, cnt, Cflag); 1065797ac58cSKevin Wolf 1066797ac58cSKevin Wolf out: 1067797ac58cSKevin Wolf if (!zflag) { 1068797ac58cSKevin Wolf qemu_io_free(buf); 1069797ac58cSKevin Wolf } 1070797ac58cSKevin Wolf 1071797ac58cSKevin Wolf return 0; 1072797ac58cSKevin Wolf } 1073797ac58cSKevin Wolf 1074797ac58cSKevin Wolf static void 1075797ac58cSKevin Wolf writev_help(void) 1076797ac58cSKevin Wolf { 1077797ac58cSKevin Wolf printf( 1078797ac58cSKevin Wolf "\n" 1079797ac58cSKevin Wolf " writes a range of bytes from the given offset source from multiple buffers\n" 1080797ac58cSKevin Wolf "\n" 1081797ac58cSKevin Wolf " Example:\n" 10826e6507c0SMaria Kustova " 'writev 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" 1083797ac58cSKevin Wolf "\n" 1084797ac58cSKevin Wolf " Writes into a segment of the currently open file, using a buffer\n" 1085797ac58cSKevin Wolf " filled with a set pattern (0xcdcdcdcd).\n" 1086797ac58cSKevin Wolf " -P, -- use different pattern to fill file\n" 1087797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1088797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1089797ac58cSKevin Wolf "\n"); 1090797ac58cSKevin Wolf } 1091797ac58cSKevin Wolf 1092797ac58cSKevin Wolf static int writev_f(BlockDriverState *bs, int argc, char **argv); 1093797ac58cSKevin Wolf 1094797ac58cSKevin Wolf static const cmdinfo_t writev_cmd = { 1095797ac58cSKevin Wolf .name = "writev", 1096797ac58cSKevin Wolf .cfunc = writev_f, 1097797ac58cSKevin Wolf .argmin = 2, 1098797ac58cSKevin Wolf .argmax = -1, 1099797ac58cSKevin Wolf .args = "[-Cq] [-P pattern ] off len [len..]", 1100797ac58cSKevin Wolf .oneline = "writes a number of bytes at a specified offset", 1101797ac58cSKevin Wolf .help = writev_help, 1102797ac58cSKevin Wolf }; 1103797ac58cSKevin Wolf 1104797ac58cSKevin Wolf static int writev_f(BlockDriverState *bs, int argc, char **argv) 1105797ac58cSKevin Wolf { 1106797ac58cSKevin Wolf struct timeval t1, t2; 1107797ac58cSKevin Wolf int Cflag = 0, qflag = 0; 1108797ac58cSKevin Wolf int c, cnt; 1109797ac58cSKevin Wolf char *buf; 1110797ac58cSKevin Wolf int64_t offset; 1111797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 1112797ac58cSKevin Wolf int total = 0; 1113797ac58cSKevin Wolf int nr_iov; 1114797ac58cSKevin Wolf int pattern = 0xcd; 1115797ac58cSKevin Wolf QEMUIOVector qiov; 1116797ac58cSKevin Wolf 1117797ac58cSKevin Wolf while ((c = getopt(argc, argv, "CqP:")) != EOF) { 1118797ac58cSKevin Wolf switch (c) { 1119797ac58cSKevin Wolf case 'C': 1120797ac58cSKevin Wolf Cflag = 1; 1121797ac58cSKevin Wolf break; 1122797ac58cSKevin Wolf case 'q': 1123797ac58cSKevin Wolf qflag = 1; 1124797ac58cSKevin Wolf break; 1125797ac58cSKevin Wolf case 'P': 1126797ac58cSKevin Wolf pattern = parse_pattern(optarg); 1127797ac58cSKevin Wolf if (pattern < 0) { 1128797ac58cSKevin Wolf return 0; 1129797ac58cSKevin Wolf } 1130797ac58cSKevin Wolf break; 1131797ac58cSKevin Wolf default: 1132c2cdf5c5SKevin Wolf return qemuio_command_usage(&writev_cmd); 1133797ac58cSKevin Wolf } 1134797ac58cSKevin Wolf } 1135797ac58cSKevin Wolf 1136797ac58cSKevin Wolf if (optind > argc - 2) { 1137c2cdf5c5SKevin Wolf return qemuio_command_usage(&writev_cmd); 1138797ac58cSKevin Wolf } 1139797ac58cSKevin Wolf 1140797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 1141797ac58cSKevin Wolf if (offset < 0) { 1142797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 1143797ac58cSKevin Wolf return 0; 1144797ac58cSKevin Wolf } 1145797ac58cSKevin Wolf optind++; 1146797ac58cSKevin Wolf 1147797ac58cSKevin Wolf if (offset & 0x1ff) { 1148797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1149797ac58cSKevin Wolf offset); 1150797ac58cSKevin Wolf return 0; 1151797ac58cSKevin Wolf } 1152797ac58cSKevin Wolf 1153797ac58cSKevin Wolf nr_iov = argc - optind; 1154797ac58cSKevin Wolf buf = create_iovec(bs, &qiov, &argv[optind], nr_iov, pattern); 1155797ac58cSKevin Wolf if (buf == NULL) { 1156797ac58cSKevin Wolf return 0; 1157797ac58cSKevin Wolf } 1158797ac58cSKevin Wolf 1159797ac58cSKevin Wolf gettimeofday(&t1, NULL); 1160797ac58cSKevin Wolf cnt = do_aio_writev(bs, &qiov, offset, &total); 1161797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1162797ac58cSKevin Wolf 1163797ac58cSKevin Wolf if (cnt < 0) { 1164797ac58cSKevin Wolf printf("writev failed: %s\n", strerror(-cnt)); 1165797ac58cSKevin Wolf goto out; 1166797ac58cSKevin Wolf } 1167797ac58cSKevin Wolf 1168797ac58cSKevin Wolf if (qflag) { 1169797ac58cSKevin Wolf goto out; 1170797ac58cSKevin Wolf } 1171797ac58cSKevin Wolf 1172797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1173797ac58cSKevin Wolf t2 = tsub(t2, t1); 1174797ac58cSKevin Wolf print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag); 1175797ac58cSKevin Wolf out: 1176797ac58cSKevin Wolf qemu_iovec_destroy(&qiov); 1177797ac58cSKevin Wolf qemu_io_free(buf); 1178797ac58cSKevin Wolf return 0; 1179797ac58cSKevin Wolf } 1180797ac58cSKevin Wolf 1181797ac58cSKevin Wolf static void multiwrite_help(void) 1182797ac58cSKevin Wolf { 1183797ac58cSKevin Wolf printf( 1184797ac58cSKevin Wolf "\n" 1185797ac58cSKevin Wolf " writes a range of bytes from the given offset source from multiple buffers,\n" 1186797ac58cSKevin Wolf " in a batch of requests that may be merged by qemu\n" 1187797ac58cSKevin Wolf "\n" 1188797ac58cSKevin Wolf " Example:\n" 1189797ac58cSKevin Wolf " 'multiwrite 512 1k 1k ; 4k 1k'\n" 1190797ac58cSKevin Wolf " writes 2 kB at 512 bytes and 1 kB at 4 kB into the open file\n" 1191797ac58cSKevin Wolf "\n" 1192797ac58cSKevin Wolf " Writes into a segment of the currently open file, using a buffer\n" 1193797ac58cSKevin Wolf " filled with a set pattern (0xcdcdcdcd). The pattern byte is increased\n" 1194797ac58cSKevin Wolf " by one for each request contained in the multiwrite command.\n" 1195797ac58cSKevin Wolf " -P, -- use different pattern to fill file\n" 1196797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1197797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1198797ac58cSKevin Wolf "\n"); 1199797ac58cSKevin Wolf } 1200797ac58cSKevin Wolf 1201797ac58cSKevin Wolf static int multiwrite_f(BlockDriverState *bs, int argc, char **argv); 1202797ac58cSKevin Wolf 1203797ac58cSKevin Wolf static const cmdinfo_t multiwrite_cmd = { 1204797ac58cSKevin Wolf .name = "multiwrite", 1205797ac58cSKevin Wolf .cfunc = multiwrite_f, 1206797ac58cSKevin Wolf .argmin = 2, 1207797ac58cSKevin Wolf .argmax = -1, 1208797ac58cSKevin Wolf .args = "[-Cq] [-P pattern ] off len [len..] [; off len [len..]..]", 1209797ac58cSKevin Wolf .oneline = "issues multiple write requests at once", 1210797ac58cSKevin Wolf .help = multiwrite_help, 1211797ac58cSKevin Wolf }; 1212797ac58cSKevin Wolf 1213797ac58cSKevin Wolf static int multiwrite_f(BlockDriverState *bs, int argc, char **argv) 1214797ac58cSKevin Wolf { 1215797ac58cSKevin Wolf struct timeval t1, t2; 1216797ac58cSKevin Wolf int Cflag = 0, qflag = 0; 1217797ac58cSKevin Wolf int c, cnt; 1218797ac58cSKevin Wolf char **buf; 1219797ac58cSKevin Wolf int64_t offset, first_offset = 0; 1220797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 1221797ac58cSKevin Wolf int total = 0; 1222797ac58cSKevin Wolf int nr_iov; 1223797ac58cSKevin Wolf int nr_reqs; 1224797ac58cSKevin Wolf int pattern = 0xcd; 1225797ac58cSKevin Wolf QEMUIOVector *qiovs; 1226797ac58cSKevin Wolf int i; 1227797ac58cSKevin Wolf BlockRequest *reqs; 1228797ac58cSKevin Wolf 1229797ac58cSKevin Wolf while ((c = getopt(argc, argv, "CqP:")) != EOF) { 1230797ac58cSKevin Wolf switch (c) { 1231797ac58cSKevin Wolf case 'C': 1232797ac58cSKevin Wolf Cflag = 1; 1233797ac58cSKevin Wolf break; 1234797ac58cSKevin Wolf case 'q': 1235797ac58cSKevin Wolf qflag = 1; 1236797ac58cSKevin Wolf break; 1237797ac58cSKevin Wolf case 'P': 1238797ac58cSKevin Wolf pattern = parse_pattern(optarg); 1239797ac58cSKevin Wolf if (pattern < 0) { 1240797ac58cSKevin Wolf return 0; 1241797ac58cSKevin Wolf } 1242797ac58cSKevin Wolf break; 1243797ac58cSKevin Wolf default: 1244c2cdf5c5SKevin Wolf return qemuio_command_usage(&writev_cmd); 1245797ac58cSKevin Wolf } 1246797ac58cSKevin Wolf } 1247797ac58cSKevin Wolf 1248797ac58cSKevin Wolf if (optind > argc - 2) { 1249c2cdf5c5SKevin Wolf return qemuio_command_usage(&writev_cmd); 1250797ac58cSKevin Wolf } 1251797ac58cSKevin Wolf 1252797ac58cSKevin Wolf nr_reqs = 1; 1253797ac58cSKevin Wolf for (i = optind; i < argc; i++) { 1254797ac58cSKevin Wolf if (!strcmp(argv[i], ";")) { 1255797ac58cSKevin Wolf nr_reqs++; 1256797ac58cSKevin Wolf } 1257797ac58cSKevin Wolf } 1258797ac58cSKevin Wolf 125902c4f26bSMarkus Armbruster reqs = g_new0(BlockRequest, nr_reqs); 126002c4f26bSMarkus Armbruster buf = g_new0(char *, nr_reqs); 126102c4f26bSMarkus Armbruster qiovs = g_new(QEMUIOVector, nr_reqs); 1262797ac58cSKevin Wolf 1263797ac58cSKevin Wolf for (i = 0; i < nr_reqs && optind < argc; i++) { 1264797ac58cSKevin Wolf int j; 1265797ac58cSKevin Wolf 1266797ac58cSKevin Wolf /* Read the offset of the request */ 1267797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 1268797ac58cSKevin Wolf if (offset < 0) { 1269797ac58cSKevin Wolf printf("non-numeric offset argument -- %s\n", argv[optind]); 1270797ac58cSKevin Wolf goto out; 1271797ac58cSKevin Wolf } 1272797ac58cSKevin Wolf optind++; 1273797ac58cSKevin Wolf 1274797ac58cSKevin Wolf if (offset & 0x1ff) { 1275797ac58cSKevin Wolf printf("offset %lld is not sector aligned\n", 1276797ac58cSKevin Wolf (long long)offset); 1277797ac58cSKevin Wolf goto out; 1278797ac58cSKevin Wolf } 1279797ac58cSKevin Wolf 1280797ac58cSKevin Wolf if (i == 0) { 1281797ac58cSKevin Wolf first_offset = offset; 1282797ac58cSKevin Wolf } 1283797ac58cSKevin Wolf 1284797ac58cSKevin Wolf /* Read lengths for qiov entries */ 1285797ac58cSKevin Wolf for (j = optind; j < argc; j++) { 1286797ac58cSKevin Wolf if (!strcmp(argv[j], ";")) { 1287797ac58cSKevin Wolf break; 1288797ac58cSKevin Wolf } 1289797ac58cSKevin Wolf } 1290797ac58cSKevin Wolf 1291797ac58cSKevin Wolf nr_iov = j - optind; 1292797ac58cSKevin Wolf 1293797ac58cSKevin Wolf /* Build request */ 1294797ac58cSKevin Wolf buf[i] = create_iovec(bs, &qiovs[i], &argv[optind], nr_iov, pattern); 1295797ac58cSKevin Wolf if (buf[i] == NULL) { 1296797ac58cSKevin Wolf goto out; 1297797ac58cSKevin Wolf } 1298797ac58cSKevin Wolf 1299797ac58cSKevin Wolf reqs[i].qiov = &qiovs[i]; 1300797ac58cSKevin Wolf reqs[i].sector = offset >> 9; 1301797ac58cSKevin Wolf reqs[i].nb_sectors = reqs[i].qiov->size >> 9; 1302797ac58cSKevin Wolf 1303797ac58cSKevin Wolf optind = j + 1; 1304797ac58cSKevin Wolf 1305797ac58cSKevin Wolf pattern++; 1306797ac58cSKevin Wolf } 1307797ac58cSKevin Wolf 1308797ac58cSKevin Wolf /* If there were empty requests at the end, ignore them */ 1309797ac58cSKevin Wolf nr_reqs = i; 1310797ac58cSKevin Wolf 1311797ac58cSKevin Wolf gettimeofday(&t1, NULL); 1312797ac58cSKevin Wolf cnt = do_aio_multiwrite(bs, reqs, nr_reqs, &total); 1313797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1314797ac58cSKevin Wolf 1315797ac58cSKevin Wolf if (cnt < 0) { 1316797ac58cSKevin Wolf printf("aio_multiwrite failed: %s\n", strerror(-cnt)); 1317797ac58cSKevin Wolf goto out; 1318797ac58cSKevin Wolf } 1319797ac58cSKevin Wolf 1320797ac58cSKevin Wolf if (qflag) { 1321797ac58cSKevin Wolf goto out; 1322797ac58cSKevin Wolf } 1323797ac58cSKevin Wolf 1324797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1325797ac58cSKevin Wolf t2 = tsub(t2, t1); 1326797ac58cSKevin Wolf print_report("wrote", &t2, first_offset, total, total, cnt, Cflag); 1327797ac58cSKevin Wolf out: 1328797ac58cSKevin Wolf for (i = 0; i < nr_reqs; i++) { 1329797ac58cSKevin Wolf qemu_io_free(buf[i]); 1330797ac58cSKevin Wolf if (reqs[i].qiov != NULL) { 1331797ac58cSKevin Wolf qemu_iovec_destroy(&qiovs[i]); 1332797ac58cSKevin Wolf } 1333797ac58cSKevin Wolf } 1334797ac58cSKevin Wolf g_free(buf); 1335797ac58cSKevin Wolf g_free(reqs); 1336797ac58cSKevin Wolf g_free(qiovs); 1337797ac58cSKevin Wolf return 0; 1338797ac58cSKevin Wolf } 1339797ac58cSKevin Wolf 1340797ac58cSKevin Wolf struct aio_ctx { 1341*a91f9584SFam Zheng BlockDriverState *bs; 1342797ac58cSKevin Wolf QEMUIOVector qiov; 1343797ac58cSKevin Wolf int64_t offset; 1344797ac58cSKevin Wolf char *buf; 1345797ac58cSKevin Wolf int qflag; 1346797ac58cSKevin Wolf int vflag; 1347797ac58cSKevin Wolf int Cflag; 1348797ac58cSKevin Wolf int Pflag; 1349*a91f9584SFam Zheng BlockAcctCookie acct; 1350797ac58cSKevin Wolf int pattern; 1351797ac58cSKevin Wolf struct timeval t1; 1352797ac58cSKevin Wolf }; 1353797ac58cSKevin Wolf 1354797ac58cSKevin Wolf static void aio_write_done(void *opaque, int ret) 1355797ac58cSKevin Wolf { 1356797ac58cSKevin Wolf struct aio_ctx *ctx = opaque; 1357797ac58cSKevin Wolf struct timeval t2; 1358797ac58cSKevin Wolf 1359797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1360797ac58cSKevin Wolf 1361797ac58cSKevin Wolf 1362797ac58cSKevin Wolf if (ret < 0) { 1363797ac58cSKevin Wolf printf("aio_write failed: %s\n", strerror(-ret)); 1364797ac58cSKevin Wolf goto out; 1365797ac58cSKevin Wolf } 1366797ac58cSKevin Wolf 1367*a91f9584SFam Zheng block_acct_done(&ctx->bs->stats, &ctx->acct); 1368*a91f9584SFam Zheng 1369797ac58cSKevin Wolf if (ctx->qflag) { 1370797ac58cSKevin Wolf goto out; 1371797ac58cSKevin Wolf } 1372797ac58cSKevin Wolf 1373797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1374797ac58cSKevin Wolf t2 = tsub(t2, ctx->t1); 1375797ac58cSKevin Wolf print_report("wrote", &t2, ctx->offset, ctx->qiov.size, 1376797ac58cSKevin Wolf ctx->qiov.size, 1, ctx->Cflag); 1377797ac58cSKevin Wolf out: 1378797ac58cSKevin Wolf qemu_io_free(ctx->buf); 1379797ac58cSKevin Wolf qemu_iovec_destroy(&ctx->qiov); 1380797ac58cSKevin Wolf g_free(ctx); 1381797ac58cSKevin Wolf } 1382797ac58cSKevin Wolf 1383797ac58cSKevin Wolf static void aio_read_done(void *opaque, int ret) 1384797ac58cSKevin Wolf { 1385797ac58cSKevin Wolf struct aio_ctx *ctx = opaque; 1386797ac58cSKevin Wolf struct timeval t2; 1387797ac58cSKevin Wolf 1388797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1389797ac58cSKevin Wolf 1390797ac58cSKevin Wolf if (ret < 0) { 1391797ac58cSKevin Wolf printf("readv failed: %s\n", strerror(-ret)); 1392797ac58cSKevin Wolf goto out; 1393797ac58cSKevin Wolf } 1394797ac58cSKevin Wolf 1395797ac58cSKevin Wolf if (ctx->Pflag) { 1396797ac58cSKevin Wolf void *cmp_buf = g_malloc(ctx->qiov.size); 1397797ac58cSKevin Wolf 1398797ac58cSKevin Wolf memset(cmp_buf, ctx->pattern, ctx->qiov.size); 1399797ac58cSKevin Wolf if (memcmp(ctx->buf, cmp_buf, ctx->qiov.size)) { 1400797ac58cSKevin Wolf printf("Pattern verification failed at offset %" 1401797ac58cSKevin Wolf PRId64 ", %zd bytes\n", ctx->offset, ctx->qiov.size); 1402797ac58cSKevin Wolf } 1403797ac58cSKevin Wolf g_free(cmp_buf); 1404797ac58cSKevin Wolf } 1405797ac58cSKevin Wolf 1406*a91f9584SFam Zheng block_acct_done(&ctx->bs->stats, &ctx->acct); 1407*a91f9584SFam Zheng 1408797ac58cSKevin Wolf if (ctx->qflag) { 1409797ac58cSKevin Wolf goto out; 1410797ac58cSKevin Wolf } 1411797ac58cSKevin Wolf 1412797ac58cSKevin Wolf if (ctx->vflag) { 1413797ac58cSKevin Wolf dump_buffer(ctx->buf, ctx->offset, ctx->qiov.size); 1414797ac58cSKevin Wolf } 1415797ac58cSKevin Wolf 1416797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1417797ac58cSKevin Wolf t2 = tsub(t2, ctx->t1); 1418797ac58cSKevin Wolf print_report("read", &t2, ctx->offset, ctx->qiov.size, 1419797ac58cSKevin Wolf ctx->qiov.size, 1, ctx->Cflag); 1420797ac58cSKevin Wolf out: 1421797ac58cSKevin Wolf qemu_io_free(ctx->buf); 1422797ac58cSKevin Wolf qemu_iovec_destroy(&ctx->qiov); 1423797ac58cSKevin Wolf g_free(ctx); 1424797ac58cSKevin Wolf } 1425797ac58cSKevin Wolf 1426797ac58cSKevin Wolf static void aio_read_help(void) 1427797ac58cSKevin Wolf { 1428797ac58cSKevin Wolf printf( 1429797ac58cSKevin Wolf "\n" 1430797ac58cSKevin Wolf " asynchronously reads a range of bytes from the given offset\n" 1431797ac58cSKevin Wolf "\n" 1432797ac58cSKevin Wolf " Example:\n" 1433797ac58cSKevin Wolf " 'aio_read -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" 1434797ac58cSKevin Wolf "\n" 1435797ac58cSKevin Wolf " Reads a segment of the currently open file, optionally dumping it to the\n" 1436797ac58cSKevin Wolf " standard output stream (with -v option) for subsequent inspection.\n" 1437797ac58cSKevin Wolf " The read is performed asynchronously and the aio_flush command must be\n" 1438797ac58cSKevin Wolf " used to ensure all outstanding aio requests have been completed.\n" 1439797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1440797ac58cSKevin Wolf " -P, -- use a pattern to verify read data\n" 1441797ac58cSKevin Wolf " -v, -- dump buffer to standard output\n" 1442797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1443797ac58cSKevin Wolf "\n"); 1444797ac58cSKevin Wolf } 1445797ac58cSKevin Wolf 1446797ac58cSKevin Wolf static int aio_read_f(BlockDriverState *bs, int argc, char **argv); 1447797ac58cSKevin Wolf 1448797ac58cSKevin Wolf static const cmdinfo_t aio_read_cmd = { 1449797ac58cSKevin Wolf .name = "aio_read", 1450797ac58cSKevin Wolf .cfunc = aio_read_f, 1451797ac58cSKevin Wolf .argmin = 2, 1452797ac58cSKevin Wolf .argmax = -1, 1453797ac58cSKevin Wolf .args = "[-Cqv] [-P pattern ] off len [len..]", 1454797ac58cSKevin Wolf .oneline = "asynchronously reads a number of bytes", 1455797ac58cSKevin Wolf .help = aio_read_help, 1456797ac58cSKevin Wolf }; 1457797ac58cSKevin Wolf 1458797ac58cSKevin Wolf static int aio_read_f(BlockDriverState *bs, int argc, char **argv) 1459797ac58cSKevin Wolf { 1460797ac58cSKevin Wolf int nr_iov, c; 1461797ac58cSKevin Wolf struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); 1462797ac58cSKevin Wolf 1463*a91f9584SFam Zheng ctx->bs = bs; 1464797ac58cSKevin Wolf while ((c = getopt(argc, argv, "CP:qv")) != EOF) { 1465797ac58cSKevin Wolf switch (c) { 1466797ac58cSKevin Wolf case 'C': 1467797ac58cSKevin Wolf ctx->Cflag = 1; 1468797ac58cSKevin Wolf break; 1469797ac58cSKevin Wolf case 'P': 1470797ac58cSKevin Wolf ctx->Pflag = 1; 1471797ac58cSKevin Wolf ctx->pattern = parse_pattern(optarg); 1472797ac58cSKevin Wolf if (ctx->pattern < 0) { 1473797ac58cSKevin Wolf g_free(ctx); 1474797ac58cSKevin Wolf return 0; 1475797ac58cSKevin Wolf } 1476797ac58cSKevin Wolf break; 1477797ac58cSKevin Wolf case 'q': 1478797ac58cSKevin Wolf ctx->qflag = 1; 1479797ac58cSKevin Wolf break; 1480797ac58cSKevin Wolf case 'v': 1481797ac58cSKevin Wolf ctx->vflag = 1; 1482797ac58cSKevin Wolf break; 1483797ac58cSKevin Wolf default: 1484797ac58cSKevin Wolf g_free(ctx); 1485c2cdf5c5SKevin Wolf return qemuio_command_usage(&aio_read_cmd); 1486797ac58cSKevin Wolf } 1487797ac58cSKevin Wolf } 1488797ac58cSKevin Wolf 1489797ac58cSKevin Wolf if (optind > argc - 2) { 1490797ac58cSKevin Wolf g_free(ctx); 1491c2cdf5c5SKevin Wolf return qemuio_command_usage(&aio_read_cmd); 1492797ac58cSKevin Wolf } 1493797ac58cSKevin Wolf 1494797ac58cSKevin Wolf ctx->offset = cvtnum(argv[optind]); 1495797ac58cSKevin Wolf if (ctx->offset < 0) { 1496797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 1497797ac58cSKevin Wolf g_free(ctx); 1498797ac58cSKevin Wolf return 0; 1499797ac58cSKevin Wolf } 1500797ac58cSKevin Wolf optind++; 1501797ac58cSKevin Wolf 1502797ac58cSKevin Wolf if (ctx->offset & 0x1ff) { 1503797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1504797ac58cSKevin Wolf ctx->offset); 1505797ac58cSKevin Wolf g_free(ctx); 1506797ac58cSKevin Wolf return 0; 1507797ac58cSKevin Wolf } 1508797ac58cSKevin Wolf 1509797ac58cSKevin Wolf nr_iov = argc - optind; 1510797ac58cSKevin Wolf ctx->buf = create_iovec(bs, &ctx->qiov, &argv[optind], nr_iov, 0xab); 1511797ac58cSKevin Wolf if (ctx->buf == NULL) { 1512797ac58cSKevin Wolf g_free(ctx); 1513797ac58cSKevin Wolf return 0; 1514797ac58cSKevin Wolf } 1515797ac58cSKevin Wolf 1516797ac58cSKevin Wolf gettimeofday(&ctx->t1, NULL); 1517*a91f9584SFam Zheng block_acct_start(&bs->stats, &ctx->acct, ctx->qiov.size, BLOCK_ACCT_READ); 1518797ac58cSKevin Wolf bdrv_aio_readv(bs, ctx->offset >> 9, &ctx->qiov, 1519797ac58cSKevin Wolf ctx->qiov.size >> 9, aio_read_done, ctx); 1520797ac58cSKevin Wolf return 0; 1521797ac58cSKevin Wolf } 1522797ac58cSKevin Wolf 1523797ac58cSKevin Wolf static void aio_write_help(void) 1524797ac58cSKevin Wolf { 1525797ac58cSKevin Wolf printf( 1526797ac58cSKevin Wolf "\n" 1527797ac58cSKevin Wolf " asynchronously writes a range of bytes from the given offset source\n" 1528797ac58cSKevin Wolf " from multiple buffers\n" 1529797ac58cSKevin Wolf "\n" 1530797ac58cSKevin Wolf " Example:\n" 1531797ac58cSKevin Wolf " 'aio_write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" 1532797ac58cSKevin Wolf "\n" 1533797ac58cSKevin Wolf " Writes into a segment of the currently open file, using a buffer\n" 1534797ac58cSKevin Wolf " filled with a set pattern (0xcdcdcdcd).\n" 1535797ac58cSKevin Wolf " The write is performed asynchronously and the aio_flush command must be\n" 1536797ac58cSKevin Wolf " used to ensure all outstanding aio requests have been completed.\n" 1537797ac58cSKevin Wolf " -P, -- use different pattern to fill file\n" 1538797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1539797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1540797ac58cSKevin Wolf "\n"); 1541797ac58cSKevin Wolf } 1542797ac58cSKevin Wolf 1543797ac58cSKevin Wolf static int aio_write_f(BlockDriverState *bs, int argc, char **argv); 1544797ac58cSKevin Wolf 1545797ac58cSKevin Wolf static const cmdinfo_t aio_write_cmd = { 1546797ac58cSKevin Wolf .name = "aio_write", 1547797ac58cSKevin Wolf .cfunc = aio_write_f, 1548797ac58cSKevin Wolf .argmin = 2, 1549797ac58cSKevin Wolf .argmax = -1, 1550797ac58cSKevin Wolf .args = "[-Cq] [-P pattern ] off len [len..]", 1551797ac58cSKevin Wolf .oneline = "asynchronously writes a number of bytes", 1552797ac58cSKevin Wolf .help = aio_write_help, 1553797ac58cSKevin Wolf }; 1554797ac58cSKevin Wolf 1555797ac58cSKevin Wolf static int aio_write_f(BlockDriverState *bs, int argc, char **argv) 1556797ac58cSKevin Wolf { 1557797ac58cSKevin Wolf int nr_iov, c; 1558797ac58cSKevin Wolf int pattern = 0xcd; 1559797ac58cSKevin Wolf struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); 1560797ac58cSKevin Wolf 1561*a91f9584SFam Zheng ctx->bs = bs; 1562797ac58cSKevin Wolf while ((c = getopt(argc, argv, "CqP:")) != EOF) { 1563797ac58cSKevin Wolf switch (c) { 1564797ac58cSKevin Wolf case 'C': 1565797ac58cSKevin Wolf ctx->Cflag = 1; 1566797ac58cSKevin Wolf break; 1567797ac58cSKevin Wolf case 'q': 1568797ac58cSKevin Wolf ctx->qflag = 1; 1569797ac58cSKevin Wolf break; 1570797ac58cSKevin Wolf case 'P': 1571797ac58cSKevin Wolf pattern = parse_pattern(optarg); 1572797ac58cSKevin Wolf if (pattern < 0) { 1573797ac58cSKevin Wolf g_free(ctx); 1574797ac58cSKevin Wolf return 0; 1575797ac58cSKevin Wolf } 1576797ac58cSKevin Wolf break; 1577797ac58cSKevin Wolf default: 1578797ac58cSKevin Wolf g_free(ctx); 1579c2cdf5c5SKevin Wolf return qemuio_command_usage(&aio_write_cmd); 1580797ac58cSKevin Wolf } 1581797ac58cSKevin Wolf } 1582797ac58cSKevin Wolf 1583797ac58cSKevin Wolf if (optind > argc - 2) { 1584797ac58cSKevin Wolf g_free(ctx); 1585c2cdf5c5SKevin Wolf return qemuio_command_usage(&aio_write_cmd); 1586797ac58cSKevin Wolf } 1587797ac58cSKevin Wolf 1588797ac58cSKevin Wolf ctx->offset = cvtnum(argv[optind]); 1589797ac58cSKevin Wolf if (ctx->offset < 0) { 1590797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 1591797ac58cSKevin Wolf g_free(ctx); 1592797ac58cSKevin Wolf return 0; 1593797ac58cSKevin Wolf } 1594797ac58cSKevin Wolf optind++; 1595797ac58cSKevin Wolf 1596797ac58cSKevin Wolf if (ctx->offset & 0x1ff) { 1597797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1598797ac58cSKevin Wolf ctx->offset); 1599797ac58cSKevin Wolf g_free(ctx); 1600797ac58cSKevin Wolf return 0; 1601797ac58cSKevin Wolf } 1602797ac58cSKevin Wolf 1603797ac58cSKevin Wolf nr_iov = argc - optind; 1604797ac58cSKevin Wolf ctx->buf = create_iovec(bs, &ctx->qiov, &argv[optind], nr_iov, pattern); 1605797ac58cSKevin Wolf if (ctx->buf == NULL) { 1606797ac58cSKevin Wolf g_free(ctx); 1607797ac58cSKevin Wolf return 0; 1608797ac58cSKevin Wolf } 1609797ac58cSKevin Wolf 1610797ac58cSKevin Wolf gettimeofday(&ctx->t1, NULL); 1611*a91f9584SFam Zheng block_acct_start(&bs->stats, &ctx->acct, ctx->qiov.size, BLOCK_ACCT_WRITE); 1612797ac58cSKevin Wolf bdrv_aio_writev(bs, ctx->offset >> 9, &ctx->qiov, 1613797ac58cSKevin Wolf ctx->qiov.size >> 9, aio_write_done, ctx); 1614797ac58cSKevin Wolf return 0; 1615797ac58cSKevin Wolf } 1616797ac58cSKevin Wolf 1617797ac58cSKevin Wolf static int aio_flush_f(BlockDriverState *bs, int argc, char **argv) 1618797ac58cSKevin Wolf { 1619797ac58cSKevin Wolf bdrv_drain_all(); 1620797ac58cSKevin Wolf return 0; 1621797ac58cSKevin Wolf } 1622797ac58cSKevin Wolf 1623797ac58cSKevin Wolf static const cmdinfo_t aio_flush_cmd = { 1624797ac58cSKevin Wolf .name = "aio_flush", 1625797ac58cSKevin Wolf .cfunc = aio_flush_f, 1626797ac58cSKevin Wolf .oneline = "completes all outstanding aio requests" 1627797ac58cSKevin Wolf }; 1628797ac58cSKevin Wolf 1629797ac58cSKevin Wolf static int flush_f(BlockDriverState *bs, int argc, char **argv) 1630797ac58cSKevin Wolf { 1631797ac58cSKevin Wolf bdrv_flush(bs); 1632797ac58cSKevin Wolf return 0; 1633797ac58cSKevin Wolf } 1634797ac58cSKevin Wolf 1635797ac58cSKevin Wolf static const cmdinfo_t flush_cmd = { 1636797ac58cSKevin Wolf .name = "flush", 1637797ac58cSKevin Wolf .altname = "f", 1638797ac58cSKevin Wolf .cfunc = flush_f, 1639797ac58cSKevin Wolf .oneline = "flush all in-core file state to disk", 1640797ac58cSKevin Wolf }; 1641797ac58cSKevin Wolf 1642797ac58cSKevin Wolf static int truncate_f(BlockDriverState *bs, int argc, char **argv) 1643797ac58cSKevin Wolf { 1644797ac58cSKevin Wolf int64_t offset; 1645797ac58cSKevin Wolf int ret; 1646797ac58cSKevin Wolf 1647797ac58cSKevin Wolf offset = cvtnum(argv[1]); 1648797ac58cSKevin Wolf if (offset < 0) { 1649797ac58cSKevin Wolf printf("non-numeric truncate argument -- %s\n", argv[1]); 1650797ac58cSKevin Wolf return 0; 1651797ac58cSKevin Wolf } 1652797ac58cSKevin Wolf 1653797ac58cSKevin Wolf ret = bdrv_truncate(bs, offset); 1654797ac58cSKevin Wolf if (ret < 0) { 1655797ac58cSKevin Wolf printf("truncate: %s\n", strerror(-ret)); 1656797ac58cSKevin Wolf return 0; 1657797ac58cSKevin Wolf } 1658797ac58cSKevin Wolf 1659797ac58cSKevin Wolf return 0; 1660797ac58cSKevin Wolf } 1661797ac58cSKevin Wolf 1662797ac58cSKevin Wolf static const cmdinfo_t truncate_cmd = { 1663797ac58cSKevin Wolf .name = "truncate", 1664797ac58cSKevin Wolf .altname = "t", 1665797ac58cSKevin Wolf .cfunc = truncate_f, 1666797ac58cSKevin Wolf .argmin = 1, 1667797ac58cSKevin Wolf .argmax = 1, 1668797ac58cSKevin Wolf .args = "off", 1669797ac58cSKevin Wolf .oneline = "truncates the current file at the given offset", 1670797ac58cSKevin Wolf }; 1671797ac58cSKevin Wolf 1672797ac58cSKevin Wolf static int length_f(BlockDriverState *bs, int argc, char **argv) 1673797ac58cSKevin Wolf { 1674797ac58cSKevin Wolf int64_t size; 1675797ac58cSKevin Wolf char s1[64]; 1676797ac58cSKevin Wolf 1677797ac58cSKevin Wolf size = bdrv_getlength(bs); 1678797ac58cSKevin Wolf if (size < 0) { 1679797ac58cSKevin Wolf printf("getlength: %s\n", strerror(-size)); 1680797ac58cSKevin Wolf return 0; 1681797ac58cSKevin Wolf } 1682797ac58cSKevin Wolf 1683797ac58cSKevin Wolf cvtstr(size, s1, sizeof(s1)); 1684797ac58cSKevin Wolf printf("%s\n", s1); 1685797ac58cSKevin Wolf return 0; 1686797ac58cSKevin Wolf } 1687797ac58cSKevin Wolf 1688797ac58cSKevin Wolf 1689797ac58cSKevin Wolf static const cmdinfo_t length_cmd = { 1690797ac58cSKevin Wolf .name = "length", 1691797ac58cSKevin Wolf .altname = "l", 1692797ac58cSKevin Wolf .cfunc = length_f, 1693797ac58cSKevin Wolf .oneline = "gets the length of the current file", 1694797ac58cSKevin Wolf }; 1695797ac58cSKevin Wolf 1696797ac58cSKevin Wolf 1697797ac58cSKevin Wolf static int info_f(BlockDriverState *bs, int argc, char **argv) 1698797ac58cSKevin Wolf { 1699797ac58cSKevin Wolf BlockDriverInfo bdi; 1700a8d8ecb7SMax Reitz ImageInfoSpecific *spec_info; 1701797ac58cSKevin Wolf char s1[64], s2[64]; 1702797ac58cSKevin Wolf int ret; 1703797ac58cSKevin Wolf 1704797ac58cSKevin Wolf if (bs->drv && bs->drv->format_name) { 1705797ac58cSKevin Wolf printf("format name: %s\n", bs->drv->format_name); 1706797ac58cSKevin Wolf } 1707797ac58cSKevin Wolf if (bs->drv && bs->drv->protocol_name) { 1708797ac58cSKevin Wolf printf("format name: %s\n", bs->drv->protocol_name); 1709797ac58cSKevin Wolf } 1710797ac58cSKevin Wolf 1711797ac58cSKevin Wolf ret = bdrv_get_info(bs, &bdi); 1712797ac58cSKevin Wolf if (ret) { 1713797ac58cSKevin Wolf return 0; 1714797ac58cSKevin Wolf } 1715797ac58cSKevin Wolf 1716797ac58cSKevin Wolf cvtstr(bdi.cluster_size, s1, sizeof(s1)); 1717797ac58cSKevin Wolf cvtstr(bdi.vm_state_offset, s2, sizeof(s2)); 1718797ac58cSKevin Wolf 1719797ac58cSKevin Wolf printf("cluster size: %s\n", s1); 1720797ac58cSKevin Wolf printf("vm state offset: %s\n", s2); 1721797ac58cSKevin Wolf 1722a8d8ecb7SMax Reitz spec_info = bdrv_get_specific_info(bs); 1723a8d8ecb7SMax Reitz if (spec_info) { 1724a8d8ecb7SMax Reitz printf("Format specific information:\n"); 1725a8d8ecb7SMax Reitz bdrv_image_info_specific_dump(fprintf, stdout, spec_info); 1726a8d8ecb7SMax Reitz qapi_free_ImageInfoSpecific(spec_info); 1727a8d8ecb7SMax Reitz } 1728a8d8ecb7SMax Reitz 1729797ac58cSKevin Wolf return 0; 1730797ac58cSKevin Wolf } 1731797ac58cSKevin Wolf 1732797ac58cSKevin Wolf 1733797ac58cSKevin Wolf 1734797ac58cSKevin Wolf static const cmdinfo_t info_cmd = { 1735797ac58cSKevin Wolf .name = "info", 1736797ac58cSKevin Wolf .altname = "i", 1737797ac58cSKevin Wolf .cfunc = info_f, 1738797ac58cSKevin Wolf .oneline = "prints information about the current file", 1739797ac58cSKevin Wolf }; 1740797ac58cSKevin Wolf 1741797ac58cSKevin Wolf static void discard_help(void) 1742797ac58cSKevin Wolf { 1743797ac58cSKevin Wolf printf( 1744797ac58cSKevin Wolf "\n" 1745797ac58cSKevin Wolf " discards a range of bytes from the given offset\n" 1746797ac58cSKevin Wolf "\n" 1747797ac58cSKevin Wolf " Example:\n" 1748797ac58cSKevin Wolf " 'discard 512 1k' - discards 1 kilobyte from 512 bytes into the file\n" 1749797ac58cSKevin Wolf "\n" 1750797ac58cSKevin Wolf " Discards a segment of the currently open file.\n" 1751797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1752797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1753797ac58cSKevin Wolf "\n"); 1754797ac58cSKevin Wolf } 1755797ac58cSKevin Wolf 1756797ac58cSKevin Wolf static int discard_f(BlockDriverState *bs, int argc, char **argv); 1757797ac58cSKevin Wolf 1758797ac58cSKevin Wolf static const cmdinfo_t discard_cmd = { 1759797ac58cSKevin Wolf .name = "discard", 1760797ac58cSKevin Wolf .altname = "d", 1761797ac58cSKevin Wolf .cfunc = discard_f, 1762797ac58cSKevin Wolf .argmin = 2, 1763797ac58cSKevin Wolf .argmax = -1, 1764797ac58cSKevin Wolf .args = "[-Cq] off len", 1765797ac58cSKevin Wolf .oneline = "discards a number of bytes at a specified offset", 1766797ac58cSKevin Wolf .help = discard_help, 1767797ac58cSKevin Wolf }; 1768797ac58cSKevin Wolf 1769797ac58cSKevin Wolf static int discard_f(BlockDriverState *bs, int argc, char **argv) 1770797ac58cSKevin Wolf { 1771797ac58cSKevin Wolf struct timeval t1, t2; 1772797ac58cSKevin Wolf int Cflag = 0, qflag = 0; 1773797ac58cSKevin Wolf int c, ret; 1774797ac58cSKevin Wolf int64_t offset; 1775797ac58cSKevin Wolf int count; 1776797ac58cSKevin Wolf 1777797ac58cSKevin Wolf while ((c = getopt(argc, argv, "Cq")) != EOF) { 1778797ac58cSKevin Wolf switch (c) { 1779797ac58cSKevin Wolf case 'C': 1780797ac58cSKevin Wolf Cflag = 1; 1781797ac58cSKevin Wolf break; 1782797ac58cSKevin Wolf case 'q': 1783797ac58cSKevin Wolf qflag = 1; 1784797ac58cSKevin Wolf break; 1785797ac58cSKevin Wolf default: 1786c2cdf5c5SKevin Wolf return qemuio_command_usage(&discard_cmd); 1787797ac58cSKevin Wolf } 1788797ac58cSKevin Wolf } 1789797ac58cSKevin Wolf 1790797ac58cSKevin Wolf if (optind != argc - 2) { 1791c2cdf5c5SKevin Wolf return qemuio_command_usage(&discard_cmd); 1792797ac58cSKevin Wolf } 1793797ac58cSKevin Wolf 1794797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 1795797ac58cSKevin Wolf if (offset < 0) { 1796797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 1797797ac58cSKevin Wolf return 0; 1798797ac58cSKevin Wolf } 1799797ac58cSKevin Wolf 1800797ac58cSKevin Wolf optind++; 1801797ac58cSKevin Wolf count = cvtnum(argv[optind]); 1802797ac58cSKevin Wolf if (count < 0) { 1803797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 1804797ac58cSKevin Wolf return 0; 1805797ac58cSKevin Wolf } 1806797ac58cSKevin Wolf 1807797ac58cSKevin Wolf gettimeofday(&t1, NULL); 1808797ac58cSKevin Wolf ret = bdrv_discard(bs, offset >> BDRV_SECTOR_BITS, 1809797ac58cSKevin Wolf count >> BDRV_SECTOR_BITS); 1810797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1811797ac58cSKevin Wolf 1812797ac58cSKevin Wolf if (ret < 0) { 1813797ac58cSKevin Wolf printf("discard failed: %s\n", strerror(-ret)); 1814797ac58cSKevin Wolf goto out; 1815797ac58cSKevin Wolf } 1816797ac58cSKevin Wolf 1817797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1818797ac58cSKevin Wolf if (!qflag) { 1819797ac58cSKevin Wolf t2 = tsub(t2, t1); 1820797ac58cSKevin Wolf print_report("discard", &t2, offset, count, count, 1, Cflag); 1821797ac58cSKevin Wolf } 1822797ac58cSKevin Wolf 1823797ac58cSKevin Wolf out: 1824797ac58cSKevin Wolf return 0; 1825797ac58cSKevin Wolf } 1826797ac58cSKevin Wolf 1827797ac58cSKevin Wolf static int alloc_f(BlockDriverState *bs, int argc, char **argv) 1828797ac58cSKevin Wolf { 1829797ac58cSKevin Wolf int64_t offset, sector_num; 1830797ac58cSKevin Wolf int nb_sectors, remaining; 1831797ac58cSKevin Wolf char s1[64]; 1832797ac58cSKevin Wolf int num, sum_alloc; 1833797ac58cSKevin Wolf int ret; 1834797ac58cSKevin Wolf 1835797ac58cSKevin Wolf offset = cvtnum(argv[1]); 1836797ac58cSKevin Wolf if (offset < 0) { 1837797ac58cSKevin Wolf printf("non-numeric offset argument -- %s\n", argv[1]); 1838797ac58cSKevin Wolf return 0; 1839797ac58cSKevin Wolf } else if (offset & 0x1ff) { 1840797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1841797ac58cSKevin Wolf offset); 1842797ac58cSKevin Wolf return 0; 1843797ac58cSKevin Wolf } 1844797ac58cSKevin Wolf 1845797ac58cSKevin Wolf if (argc == 3) { 1846797ac58cSKevin Wolf nb_sectors = cvtnum(argv[2]); 1847797ac58cSKevin Wolf if (nb_sectors < 0) { 1848797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[2]); 1849797ac58cSKevin Wolf return 0; 1850797ac58cSKevin Wolf } 1851797ac58cSKevin Wolf } else { 1852797ac58cSKevin Wolf nb_sectors = 1; 1853797ac58cSKevin Wolf } 1854797ac58cSKevin Wolf 1855797ac58cSKevin Wolf remaining = nb_sectors; 1856797ac58cSKevin Wolf sum_alloc = 0; 1857797ac58cSKevin Wolf sector_num = offset >> 9; 1858797ac58cSKevin Wolf while (remaining) { 1859797ac58cSKevin Wolf ret = bdrv_is_allocated(bs, sector_num, remaining, &num); 1860d663640cSPaolo Bonzini if (ret < 0) { 1861d663640cSPaolo Bonzini printf("is_allocated failed: %s\n", strerror(-ret)); 1862d663640cSPaolo Bonzini return 0; 1863d663640cSPaolo Bonzini } 1864797ac58cSKevin Wolf sector_num += num; 1865797ac58cSKevin Wolf remaining -= num; 1866797ac58cSKevin Wolf if (ret) { 1867797ac58cSKevin Wolf sum_alloc += num; 1868797ac58cSKevin Wolf } 1869797ac58cSKevin Wolf if (num == 0) { 1870797ac58cSKevin Wolf nb_sectors -= remaining; 1871797ac58cSKevin Wolf remaining = 0; 1872797ac58cSKevin Wolf } 1873797ac58cSKevin Wolf } 1874797ac58cSKevin Wolf 1875797ac58cSKevin Wolf cvtstr(offset, s1, sizeof(s1)); 1876797ac58cSKevin Wolf 1877797ac58cSKevin Wolf printf("%d/%d sectors allocated at offset %s\n", 1878797ac58cSKevin Wolf sum_alloc, nb_sectors, s1); 1879797ac58cSKevin Wolf return 0; 1880797ac58cSKevin Wolf } 1881797ac58cSKevin Wolf 1882797ac58cSKevin Wolf static const cmdinfo_t alloc_cmd = { 1883797ac58cSKevin Wolf .name = "alloc", 1884797ac58cSKevin Wolf .altname = "a", 1885797ac58cSKevin Wolf .argmin = 1, 1886797ac58cSKevin Wolf .argmax = 2, 1887797ac58cSKevin Wolf .cfunc = alloc_f, 1888797ac58cSKevin Wolf .args = "off [sectors]", 1889797ac58cSKevin Wolf .oneline = "checks if a sector is present in the file", 1890797ac58cSKevin Wolf }; 1891797ac58cSKevin Wolf 1892797ac58cSKevin Wolf 1893797ac58cSKevin Wolf static int map_is_allocated(BlockDriverState *bs, int64_t sector_num, 1894797ac58cSKevin Wolf int64_t nb_sectors, int64_t *pnum) 1895797ac58cSKevin Wolf { 1896797ac58cSKevin Wolf int num, num_checked; 1897797ac58cSKevin Wolf int ret, firstret; 1898797ac58cSKevin Wolf 1899797ac58cSKevin Wolf num_checked = MIN(nb_sectors, INT_MAX); 1900797ac58cSKevin Wolf ret = bdrv_is_allocated(bs, sector_num, num_checked, &num); 1901797ac58cSKevin Wolf if (ret < 0) { 1902797ac58cSKevin Wolf return ret; 1903797ac58cSKevin Wolf } 1904797ac58cSKevin Wolf 1905797ac58cSKevin Wolf firstret = ret; 1906797ac58cSKevin Wolf *pnum = num; 1907797ac58cSKevin Wolf 1908797ac58cSKevin Wolf while (nb_sectors > 0 && ret == firstret) { 1909797ac58cSKevin Wolf sector_num += num; 1910797ac58cSKevin Wolf nb_sectors -= num; 1911797ac58cSKevin Wolf 1912797ac58cSKevin Wolf num_checked = MIN(nb_sectors, INT_MAX); 1913797ac58cSKevin Wolf ret = bdrv_is_allocated(bs, sector_num, num_checked, &num); 19144b25bbc4SMax Reitz if (ret == firstret && num) { 1915797ac58cSKevin Wolf *pnum += num; 1916797ac58cSKevin Wolf } else { 1917797ac58cSKevin Wolf break; 1918797ac58cSKevin Wolf } 1919797ac58cSKevin Wolf } 1920797ac58cSKevin Wolf 1921797ac58cSKevin Wolf return firstret; 1922797ac58cSKevin Wolf } 1923797ac58cSKevin Wolf 1924797ac58cSKevin Wolf static int map_f(BlockDriverState *bs, int argc, char **argv) 1925797ac58cSKevin Wolf { 1926797ac58cSKevin Wolf int64_t offset; 1927797ac58cSKevin Wolf int64_t nb_sectors; 1928797ac58cSKevin Wolf char s1[64]; 1929797ac58cSKevin Wolf int64_t num; 1930797ac58cSKevin Wolf int ret; 1931797ac58cSKevin Wolf const char *retstr; 1932797ac58cSKevin Wolf 1933797ac58cSKevin Wolf offset = 0; 1934797ac58cSKevin Wolf nb_sectors = bs->total_sectors; 1935797ac58cSKevin Wolf 1936797ac58cSKevin Wolf do { 1937797ac58cSKevin Wolf ret = map_is_allocated(bs, offset, nb_sectors, &num); 1938797ac58cSKevin Wolf if (ret < 0) { 1939797ac58cSKevin Wolf error_report("Failed to get allocation status: %s", strerror(-ret)); 1940797ac58cSKevin Wolf return 0; 19414b25bbc4SMax Reitz } else if (!num) { 19424b25bbc4SMax Reitz error_report("Unexpected end of image"); 19434b25bbc4SMax Reitz return 0; 1944797ac58cSKevin Wolf } 1945797ac58cSKevin Wolf 1946797ac58cSKevin Wolf retstr = ret ? " allocated" : "not allocated"; 1947797ac58cSKevin Wolf cvtstr(offset << 9ULL, s1, sizeof(s1)); 1948797ac58cSKevin Wolf printf("[% 24" PRId64 "] % 8" PRId64 "/% 8" PRId64 " sectors %s " 1949797ac58cSKevin Wolf "at offset %s (%d)\n", 1950797ac58cSKevin Wolf offset << 9ULL, num, nb_sectors, retstr, s1, ret); 1951797ac58cSKevin Wolf 1952797ac58cSKevin Wolf offset += num; 1953797ac58cSKevin Wolf nb_sectors -= num; 1954797ac58cSKevin Wolf } while (offset < bs->total_sectors); 1955797ac58cSKevin Wolf 1956797ac58cSKevin Wolf return 0; 1957797ac58cSKevin Wolf } 1958797ac58cSKevin Wolf 1959797ac58cSKevin Wolf static const cmdinfo_t map_cmd = { 1960797ac58cSKevin Wolf .name = "map", 1961797ac58cSKevin Wolf .argmin = 0, 1962797ac58cSKevin Wolf .argmax = 0, 1963797ac58cSKevin Wolf .cfunc = map_f, 1964797ac58cSKevin Wolf .args = "", 1965797ac58cSKevin Wolf .oneline = "prints the allocated areas of a file", 1966797ac58cSKevin Wolf }; 1967797ac58cSKevin Wolf 1968797ac58cSKevin Wolf static int break_f(BlockDriverState *bs, int argc, char **argv) 1969797ac58cSKevin Wolf { 1970797ac58cSKevin Wolf int ret; 1971797ac58cSKevin Wolf 1972797ac58cSKevin Wolf ret = bdrv_debug_breakpoint(bs, argv[1], argv[2]); 1973797ac58cSKevin Wolf if (ret < 0) { 1974797ac58cSKevin Wolf printf("Could not set breakpoint: %s\n", strerror(-ret)); 1975797ac58cSKevin Wolf } 1976797ac58cSKevin Wolf 1977797ac58cSKevin Wolf return 0; 1978797ac58cSKevin Wolf } 1979797ac58cSKevin Wolf 19804cc70e93SFam Zheng static int remove_break_f(BlockDriverState *bs, int argc, char **argv) 19814cc70e93SFam Zheng { 19824cc70e93SFam Zheng int ret; 19834cc70e93SFam Zheng 19844cc70e93SFam Zheng ret = bdrv_debug_remove_breakpoint(bs, argv[1]); 19854cc70e93SFam Zheng if (ret < 0) { 19864cc70e93SFam Zheng printf("Could not remove breakpoint %s: %s\n", argv[1], strerror(-ret)); 19874cc70e93SFam Zheng } 19884cc70e93SFam Zheng 19894cc70e93SFam Zheng return 0; 19904cc70e93SFam Zheng } 19914cc70e93SFam Zheng 1992797ac58cSKevin Wolf static const cmdinfo_t break_cmd = { 1993797ac58cSKevin Wolf .name = "break", 1994797ac58cSKevin Wolf .argmin = 2, 1995797ac58cSKevin Wolf .argmax = 2, 1996797ac58cSKevin Wolf .cfunc = break_f, 1997797ac58cSKevin Wolf .args = "event tag", 1998797ac58cSKevin Wolf .oneline = "sets a breakpoint on event and tags the stopped " 1999797ac58cSKevin Wolf "request as tag", 2000797ac58cSKevin Wolf }; 2001797ac58cSKevin Wolf 20024cc70e93SFam Zheng static const cmdinfo_t remove_break_cmd = { 20034cc70e93SFam Zheng .name = "remove_break", 20044cc70e93SFam Zheng .argmin = 1, 20054cc70e93SFam Zheng .argmax = 1, 20064cc70e93SFam Zheng .cfunc = remove_break_f, 20074cc70e93SFam Zheng .args = "tag", 20084cc70e93SFam Zheng .oneline = "remove a breakpoint by tag", 20094cc70e93SFam Zheng }; 20104cc70e93SFam Zheng 2011797ac58cSKevin Wolf static int resume_f(BlockDriverState *bs, int argc, char **argv) 2012797ac58cSKevin Wolf { 2013797ac58cSKevin Wolf int ret; 2014797ac58cSKevin Wolf 2015797ac58cSKevin Wolf ret = bdrv_debug_resume(bs, argv[1]); 2016797ac58cSKevin Wolf if (ret < 0) { 2017797ac58cSKevin Wolf printf("Could not resume request: %s\n", strerror(-ret)); 2018797ac58cSKevin Wolf } 2019797ac58cSKevin Wolf 2020797ac58cSKevin Wolf return 0; 2021797ac58cSKevin Wolf } 2022797ac58cSKevin Wolf 2023797ac58cSKevin Wolf static const cmdinfo_t resume_cmd = { 2024797ac58cSKevin Wolf .name = "resume", 2025797ac58cSKevin Wolf .argmin = 1, 2026797ac58cSKevin Wolf .argmax = 1, 2027797ac58cSKevin Wolf .cfunc = resume_f, 2028797ac58cSKevin Wolf .args = "tag", 2029797ac58cSKevin Wolf .oneline = "resumes the request tagged as tag", 2030797ac58cSKevin Wolf }; 2031797ac58cSKevin Wolf 2032797ac58cSKevin Wolf static int wait_break_f(BlockDriverState *bs, int argc, char **argv) 2033797ac58cSKevin Wolf { 2034797ac58cSKevin Wolf while (!bdrv_debug_is_suspended(bs, argv[1])) { 2035b47ec2c4SPaolo Bonzini aio_poll(bdrv_get_aio_context(bs), true); 2036797ac58cSKevin Wolf } 2037797ac58cSKevin Wolf 2038797ac58cSKevin Wolf return 0; 2039797ac58cSKevin Wolf } 2040797ac58cSKevin Wolf 2041797ac58cSKevin Wolf static const cmdinfo_t wait_break_cmd = { 2042797ac58cSKevin Wolf .name = "wait_break", 2043797ac58cSKevin Wolf .argmin = 1, 2044797ac58cSKevin Wolf .argmax = 1, 2045797ac58cSKevin Wolf .cfunc = wait_break_f, 2046797ac58cSKevin Wolf .args = "tag", 2047797ac58cSKevin Wolf .oneline = "waits for the suspension of a request", 2048797ac58cSKevin Wolf }; 2049797ac58cSKevin Wolf 2050797ac58cSKevin Wolf static int abort_f(BlockDriverState *bs, int argc, char **argv) 2051797ac58cSKevin Wolf { 2052797ac58cSKevin Wolf abort(); 2053797ac58cSKevin Wolf } 2054797ac58cSKevin Wolf 2055797ac58cSKevin Wolf static const cmdinfo_t abort_cmd = { 2056797ac58cSKevin Wolf .name = "abort", 2057797ac58cSKevin Wolf .cfunc = abort_f, 2058797ac58cSKevin Wolf .flags = CMD_NOFILE_OK, 2059797ac58cSKevin Wolf .oneline = "simulate a program crash using abort(3)", 2060797ac58cSKevin Wolf }; 2061797ac58cSKevin Wolf 20620e82dc7bSMax Reitz static void sigraise_help(void) 20630e82dc7bSMax Reitz { 20640e82dc7bSMax Reitz printf( 20650e82dc7bSMax Reitz "\n" 20660e82dc7bSMax Reitz " raises the given signal\n" 20670e82dc7bSMax Reitz "\n" 20680e82dc7bSMax Reitz " Example:\n" 20690e82dc7bSMax Reitz " 'sigraise %i' - raises SIGTERM\n" 20700e82dc7bSMax Reitz "\n" 20710e82dc7bSMax Reitz " Invokes raise(signal), where \"signal\" is the mandatory integer argument\n" 20720e82dc7bSMax Reitz " given to sigraise.\n" 20730e82dc7bSMax Reitz "\n", SIGTERM); 20740e82dc7bSMax Reitz } 20750e82dc7bSMax Reitz 20760e82dc7bSMax Reitz static int sigraise_f(BlockDriverState *bs, int argc, char **argv); 20770e82dc7bSMax Reitz 20780e82dc7bSMax Reitz static const cmdinfo_t sigraise_cmd = { 20790e82dc7bSMax Reitz .name = "sigraise", 20800e82dc7bSMax Reitz .cfunc = sigraise_f, 20810e82dc7bSMax Reitz .argmin = 1, 20820e82dc7bSMax Reitz .argmax = 1, 20830e82dc7bSMax Reitz .flags = CMD_NOFILE_OK, 20840e82dc7bSMax Reitz .args = "signal", 20850e82dc7bSMax Reitz .oneline = "raises a signal", 20860e82dc7bSMax Reitz .help = sigraise_help, 20870e82dc7bSMax Reitz }; 20880e82dc7bSMax Reitz 20890e82dc7bSMax Reitz static int sigraise_f(BlockDriverState *bs, int argc, char **argv) 20900e82dc7bSMax Reitz { 20910e82dc7bSMax Reitz int sig = cvtnum(argv[1]); 20920e82dc7bSMax Reitz if (sig < 0) { 20930e82dc7bSMax Reitz printf("non-numeric signal number argument -- %s\n", argv[1]); 20940e82dc7bSMax Reitz return 0; 20950e82dc7bSMax Reitz } 20960e82dc7bSMax Reitz 20970e82dc7bSMax Reitz /* Using raise() to kill this process does not necessarily flush all open 20980e82dc7bSMax Reitz * streams. At least stdout and stderr (although the latter should be 20990e82dc7bSMax Reitz * non-buffered anyway) should be flushed, though. */ 21000e82dc7bSMax Reitz fflush(stdout); 21010e82dc7bSMax Reitz fflush(stderr); 21020e82dc7bSMax Reitz 21030e82dc7bSMax Reitz raise(sig); 21040e82dc7bSMax Reitz return 0; 21050e82dc7bSMax Reitz } 21060e82dc7bSMax Reitz 2107cd33d02aSKevin Wolf static void sleep_cb(void *opaque) 2108cd33d02aSKevin Wolf { 2109cd33d02aSKevin Wolf bool *expired = opaque; 2110cd33d02aSKevin Wolf *expired = true; 2111cd33d02aSKevin Wolf } 2112cd33d02aSKevin Wolf 2113cd33d02aSKevin Wolf static int sleep_f(BlockDriverState *bs, int argc, char **argv) 2114cd33d02aSKevin Wolf { 2115cd33d02aSKevin Wolf char *endptr; 2116cd33d02aSKevin Wolf long ms; 2117cd33d02aSKevin Wolf struct QEMUTimer *timer; 2118cd33d02aSKevin Wolf bool expired = false; 2119cd33d02aSKevin Wolf 2120cd33d02aSKevin Wolf ms = strtol(argv[1], &endptr, 0); 2121cd33d02aSKevin Wolf if (ms < 0 || *endptr != '\0') { 2122cd33d02aSKevin Wolf printf("%s is not a valid number\n", argv[1]); 2123cd33d02aSKevin Wolf return 0; 2124cd33d02aSKevin Wolf } 2125cd33d02aSKevin Wolf 2126cd33d02aSKevin Wolf timer = timer_new_ns(QEMU_CLOCK_HOST, sleep_cb, &expired); 2127cd33d02aSKevin Wolf timer_mod(timer, qemu_clock_get_ns(QEMU_CLOCK_HOST) + SCALE_MS * ms); 2128cd33d02aSKevin Wolf 2129cd33d02aSKevin Wolf while (!expired) { 2130cd33d02aSKevin Wolf main_loop_wait(false); 2131cd33d02aSKevin Wolf } 2132cd33d02aSKevin Wolf 2133cd33d02aSKevin Wolf timer_free(timer); 2134cd33d02aSKevin Wolf 2135cd33d02aSKevin Wolf return 0; 2136cd33d02aSKevin Wolf } 2137cd33d02aSKevin Wolf 2138cd33d02aSKevin Wolf static const cmdinfo_t sleep_cmd = { 2139cd33d02aSKevin Wolf .name = "sleep", 2140cd33d02aSKevin Wolf .argmin = 1, 2141cd33d02aSKevin Wolf .argmax = 1, 2142cd33d02aSKevin Wolf .cfunc = sleep_f, 2143cd33d02aSKevin Wolf .flags = CMD_NOFILE_OK, 2144cd33d02aSKevin Wolf .oneline = "waits for the given value in milliseconds", 2145cd33d02aSKevin Wolf }; 2146cd33d02aSKevin Wolf 2147f18a834aSKevin Wolf static void help_oneline(const char *cmd, const cmdinfo_t *ct) 2148f18a834aSKevin Wolf { 2149f18a834aSKevin Wolf if (cmd) { 2150f18a834aSKevin Wolf printf("%s ", cmd); 2151f18a834aSKevin Wolf } else { 2152f18a834aSKevin Wolf printf("%s ", ct->name); 2153f18a834aSKevin Wolf if (ct->altname) { 2154f18a834aSKevin Wolf printf("(or %s) ", ct->altname); 2155f18a834aSKevin Wolf } 2156f18a834aSKevin Wolf } 2157f18a834aSKevin Wolf 2158f18a834aSKevin Wolf if (ct->args) { 2159f18a834aSKevin Wolf printf("%s ", ct->args); 2160f18a834aSKevin Wolf } 2161f18a834aSKevin Wolf printf("-- %s\n", ct->oneline); 2162f18a834aSKevin Wolf } 2163f18a834aSKevin Wolf 2164f18a834aSKevin Wolf static void help_onecmd(const char *cmd, const cmdinfo_t *ct) 2165f18a834aSKevin Wolf { 2166f18a834aSKevin Wolf help_oneline(cmd, ct); 2167f18a834aSKevin Wolf if (ct->help) { 2168f18a834aSKevin Wolf ct->help(); 2169f18a834aSKevin Wolf } 2170f18a834aSKevin Wolf } 2171f18a834aSKevin Wolf 2172f18a834aSKevin Wolf static void help_all(void) 2173f18a834aSKevin Wolf { 2174f18a834aSKevin Wolf const cmdinfo_t *ct; 2175f18a834aSKevin Wolf 2176f18a834aSKevin Wolf for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { 2177f18a834aSKevin Wolf help_oneline(ct->name, ct); 2178f18a834aSKevin Wolf } 2179f18a834aSKevin Wolf printf("\nUse 'help commandname' for extended help.\n"); 2180f18a834aSKevin Wolf } 2181f18a834aSKevin Wolf 2182f18a834aSKevin Wolf static int help_f(BlockDriverState *bs, int argc, char **argv) 2183f18a834aSKevin Wolf { 2184f18a834aSKevin Wolf const cmdinfo_t *ct; 2185f18a834aSKevin Wolf 2186f18a834aSKevin Wolf if (argc == 1) { 2187f18a834aSKevin Wolf help_all(); 2188f18a834aSKevin Wolf return 0; 2189f18a834aSKevin Wolf } 2190f18a834aSKevin Wolf 2191f18a834aSKevin Wolf ct = find_command(argv[1]); 2192f18a834aSKevin Wolf if (ct == NULL) { 2193f18a834aSKevin Wolf printf("command %s not found\n", argv[1]); 2194f18a834aSKevin Wolf return 0; 2195f18a834aSKevin Wolf } 2196f18a834aSKevin Wolf 2197f18a834aSKevin Wolf help_onecmd(argv[1], ct); 2198f18a834aSKevin Wolf return 0; 2199f18a834aSKevin Wolf } 2200f18a834aSKevin Wolf 2201f18a834aSKevin Wolf static const cmdinfo_t help_cmd = { 2202f18a834aSKevin Wolf .name = "help", 2203f18a834aSKevin Wolf .altname = "?", 2204f18a834aSKevin Wolf .cfunc = help_f, 2205f18a834aSKevin Wolf .argmin = 0, 2206f18a834aSKevin Wolf .argmax = 1, 2207f18a834aSKevin Wolf .flags = CMD_FLAG_GLOBAL, 2208f18a834aSKevin Wolf .args = "[command]", 2209f18a834aSKevin Wolf .oneline = "help for one or all commands", 2210f18a834aSKevin Wolf }; 2211f18a834aSKevin Wolf 22123d21994fSKevin Wolf bool qemuio_command(BlockDriverState *bs, const char *cmd) 2213dd583296SKevin Wolf { 2214dd583296SKevin Wolf char *input; 2215dd583296SKevin Wolf const cmdinfo_t *ct; 2216dd583296SKevin Wolf char **v; 2217dd583296SKevin Wolf int c; 2218dd583296SKevin Wolf bool done = false; 2219dd583296SKevin Wolf 2220dd583296SKevin Wolf input = g_strdup(cmd); 2221dd583296SKevin Wolf v = breakline(input, &c); 2222dd583296SKevin Wolf if (c) { 2223dd583296SKevin Wolf ct = find_command(v[0]); 2224dd583296SKevin Wolf if (ct) { 22253d21994fSKevin Wolf done = command(bs, ct, c, v); 2226dd583296SKevin Wolf } else { 2227dd583296SKevin Wolf fprintf(stderr, "command \"%s\" not found\n", v[0]); 2228dd583296SKevin Wolf } 2229dd583296SKevin Wolf } 2230dd583296SKevin Wolf g_free(input); 2231dd583296SKevin Wolf g_free(v); 2232dd583296SKevin Wolf 2233dd583296SKevin Wolf return done; 2234dd583296SKevin Wolf } 2235dd583296SKevin Wolf 2236797ac58cSKevin Wolf static void __attribute((constructor)) init_qemuio_commands(void) 2237797ac58cSKevin Wolf { 2238797ac58cSKevin Wolf /* initialize commands */ 2239c2cdf5c5SKevin Wolf qemuio_add_command(&help_cmd); 2240c2cdf5c5SKevin Wolf qemuio_add_command(&read_cmd); 2241c2cdf5c5SKevin Wolf qemuio_add_command(&readv_cmd); 2242c2cdf5c5SKevin Wolf qemuio_add_command(&write_cmd); 2243c2cdf5c5SKevin Wolf qemuio_add_command(&writev_cmd); 2244c2cdf5c5SKevin Wolf qemuio_add_command(&multiwrite_cmd); 2245c2cdf5c5SKevin Wolf qemuio_add_command(&aio_read_cmd); 2246c2cdf5c5SKevin Wolf qemuio_add_command(&aio_write_cmd); 2247c2cdf5c5SKevin Wolf qemuio_add_command(&aio_flush_cmd); 2248c2cdf5c5SKevin Wolf qemuio_add_command(&flush_cmd); 2249c2cdf5c5SKevin Wolf qemuio_add_command(&truncate_cmd); 2250c2cdf5c5SKevin Wolf qemuio_add_command(&length_cmd); 2251c2cdf5c5SKevin Wolf qemuio_add_command(&info_cmd); 2252c2cdf5c5SKevin Wolf qemuio_add_command(&discard_cmd); 2253c2cdf5c5SKevin Wolf qemuio_add_command(&alloc_cmd); 2254c2cdf5c5SKevin Wolf qemuio_add_command(&map_cmd); 2255c2cdf5c5SKevin Wolf qemuio_add_command(&break_cmd); 22564cc70e93SFam Zheng qemuio_add_command(&remove_break_cmd); 2257c2cdf5c5SKevin Wolf qemuio_add_command(&resume_cmd); 2258c2cdf5c5SKevin Wolf qemuio_add_command(&wait_break_cmd); 2259c2cdf5c5SKevin Wolf qemuio_add_command(&abort_cmd); 2260cd33d02aSKevin Wolf qemuio_add_command(&sleep_cmd); 22610e82dc7bSMax Reitz qemuio_add_command(&sigraise_cmd); 2262797ac58cSKevin Wolf } 2263