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" 124c7b7e9bSMax Reitz #include "sysemu/block-backend.h" 134c7b7e9bSMax Reitz #include "block/block.h" 144c7b7e9bSMax Reitz #include "block/block_int.h" /* for info_f() */ 15a8d8ecb7SMax Reitz #include "block/qapi.h" 166a1751b7SAlex Bligh #include "qemu/main-loop.h" 17cd33d02aSKevin Wolf #include "qemu/timer.h" 18a91f9584SFam Zheng #include "sysemu/block-backend.h" 19797ac58cSKevin Wolf 20797ac58cSKevin Wolf #define CMD_NOFILE_OK 0x01 21797ac58cSKevin Wolf 22f9883880SStefan Weil bool qemuio_misalign; 23797ac58cSKevin Wolf 24c2cdf5c5SKevin Wolf static cmdinfo_t *cmdtab; 25c2cdf5c5SKevin Wolf static int ncmds; 26c2cdf5c5SKevin Wolf 27c2cdf5c5SKevin Wolf static int compare_cmdname(const void *a, const void *b) 28c2cdf5c5SKevin Wolf { 29c2cdf5c5SKevin Wolf return strcmp(((const cmdinfo_t *)a)->name, 30c2cdf5c5SKevin Wolf ((const cmdinfo_t *)b)->name); 31c2cdf5c5SKevin Wolf } 32c2cdf5c5SKevin Wolf 33c2cdf5c5SKevin Wolf void qemuio_add_command(const cmdinfo_t *ci) 34c2cdf5c5SKevin Wolf { 3502c4f26bSMarkus Armbruster cmdtab = g_renew(cmdinfo_t, cmdtab, ++ncmds); 36c2cdf5c5SKevin Wolf cmdtab[ncmds - 1] = *ci; 37c2cdf5c5SKevin Wolf qsort(cmdtab, ncmds, sizeof(*cmdtab), compare_cmdname); 38c2cdf5c5SKevin Wolf } 39c2cdf5c5SKevin Wolf 40c2cdf5c5SKevin Wolf int qemuio_command_usage(const cmdinfo_t *ci) 41c2cdf5c5SKevin Wolf { 42c2cdf5c5SKevin Wolf printf("%s %s -- %s\n", ci->name, ci->args, ci->oneline); 43c2cdf5c5SKevin Wolf return 0; 44c2cdf5c5SKevin Wolf } 45c2cdf5c5SKevin Wolf 464c7b7e9bSMax Reitz static int init_check_command(BlockBackend *blk, const cmdinfo_t *ct) 47c2cdf5c5SKevin Wolf { 48c2cdf5c5SKevin Wolf if (ct->flags & CMD_FLAG_GLOBAL) { 49c2cdf5c5SKevin Wolf return 1; 50c2cdf5c5SKevin Wolf } 514c7b7e9bSMax Reitz if (!(ct->flags & CMD_NOFILE_OK) && !blk) { 52c2cdf5c5SKevin Wolf fprintf(stderr, "no file open, try 'help open'\n"); 53c2cdf5c5SKevin Wolf return 0; 54c2cdf5c5SKevin Wolf } 55c2cdf5c5SKevin Wolf return 1; 56c2cdf5c5SKevin Wolf } 57c2cdf5c5SKevin Wolf 584c7b7e9bSMax Reitz static int command(BlockBackend *blk, const cmdinfo_t *ct, int argc, 593d21994fSKevin Wolf char **argv) 60c2cdf5c5SKevin Wolf { 61c2cdf5c5SKevin Wolf char *cmd = argv[0]; 62c2cdf5c5SKevin Wolf 634c7b7e9bSMax Reitz if (!init_check_command(blk, ct)) { 64c2cdf5c5SKevin Wolf return 0; 65c2cdf5c5SKevin Wolf } 66c2cdf5c5SKevin Wolf 67c2cdf5c5SKevin Wolf if (argc - 1 < ct->argmin || (ct->argmax != -1 && argc - 1 > ct->argmax)) { 68c2cdf5c5SKevin Wolf if (ct->argmax == -1) { 69c2cdf5c5SKevin Wolf fprintf(stderr, 70c2cdf5c5SKevin Wolf "bad argument count %d to %s, expected at least %d arguments\n", 71c2cdf5c5SKevin Wolf argc-1, cmd, ct->argmin); 72c2cdf5c5SKevin Wolf } else if (ct->argmin == ct->argmax) { 73c2cdf5c5SKevin Wolf fprintf(stderr, 74c2cdf5c5SKevin Wolf "bad argument count %d to %s, expected %d arguments\n", 75c2cdf5c5SKevin Wolf argc-1, cmd, ct->argmin); 76c2cdf5c5SKevin Wolf } else { 77c2cdf5c5SKevin Wolf fprintf(stderr, 78c2cdf5c5SKevin Wolf "bad argument count %d to %s, expected between %d and %d arguments\n", 79c2cdf5c5SKevin Wolf argc-1, cmd, ct->argmin, ct->argmax); 80c2cdf5c5SKevin Wolf } 81c2cdf5c5SKevin Wolf return 0; 82c2cdf5c5SKevin Wolf } 83c2cdf5c5SKevin Wolf optind = 0; 844c7b7e9bSMax Reitz return ct->cfunc(blk, argc, argv); 85c2cdf5c5SKevin Wolf } 86c2cdf5c5SKevin Wolf 87c2cdf5c5SKevin Wolf static const cmdinfo_t *find_command(const char *cmd) 88c2cdf5c5SKevin Wolf { 89c2cdf5c5SKevin Wolf cmdinfo_t *ct; 90c2cdf5c5SKevin Wolf 91c2cdf5c5SKevin Wolf for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { 92c2cdf5c5SKevin Wolf if (strcmp(ct->name, cmd) == 0 || 93c2cdf5c5SKevin Wolf (ct->altname && strcmp(ct->altname, cmd) == 0)) 94c2cdf5c5SKevin Wolf { 95c2cdf5c5SKevin Wolf return (const cmdinfo_t *)ct; 96c2cdf5c5SKevin Wolf } 97c2cdf5c5SKevin Wolf } 98c2cdf5c5SKevin Wolf return NULL; 99c2cdf5c5SKevin Wolf } 100c2cdf5c5SKevin Wolf 1014694020dSStefan Hajnoczi /* Invoke fn() for commands with a matching prefix */ 1024694020dSStefan Hajnoczi void qemuio_complete_command(const char *input, 1034694020dSStefan Hajnoczi void (*fn)(const char *cmd, void *opaque), 1044694020dSStefan Hajnoczi void *opaque) 1054694020dSStefan Hajnoczi { 1064694020dSStefan Hajnoczi cmdinfo_t *ct; 1074694020dSStefan Hajnoczi size_t input_len = strlen(input); 1084694020dSStefan Hajnoczi 1094694020dSStefan Hajnoczi for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { 1104694020dSStefan Hajnoczi if (strncmp(input, ct->name, input_len) == 0) { 1114694020dSStefan Hajnoczi fn(ct->name, opaque); 1124694020dSStefan Hajnoczi } 1134694020dSStefan Hajnoczi } 1144694020dSStefan Hajnoczi } 1154694020dSStefan Hajnoczi 116c2cdf5c5SKevin Wolf static char **breakline(char *input, int *count) 117c2cdf5c5SKevin Wolf { 118c2cdf5c5SKevin Wolf int c = 0; 119c2cdf5c5SKevin Wolf char *p; 1205839e53bSMarkus Armbruster char **rval = g_new0(char *, 1); 121c2cdf5c5SKevin Wolf 122c2cdf5c5SKevin Wolf while (rval && (p = qemu_strsep(&input, " ")) != NULL) { 123c2cdf5c5SKevin Wolf if (!*p) { 124c2cdf5c5SKevin Wolf continue; 125c2cdf5c5SKevin Wolf } 126c2cdf5c5SKevin Wolf c++; 12708193dd5SMarkus Armbruster rval = g_renew(char *, rval, (c + 1)); 128c2cdf5c5SKevin Wolf rval[c - 1] = p; 129c2cdf5c5SKevin Wolf rval[c] = NULL; 130c2cdf5c5SKevin Wolf } 131c2cdf5c5SKevin Wolf *count = c; 132c2cdf5c5SKevin Wolf return rval; 133c2cdf5c5SKevin Wolf } 134c2cdf5c5SKevin Wolf 135797ac58cSKevin Wolf static int64_t cvtnum(const char *s) 136797ac58cSKevin Wolf { 137797ac58cSKevin Wolf char *end; 138797ac58cSKevin Wolf return strtosz_suffix(s, &end, STRTOSZ_DEFSUFFIX_B); 139797ac58cSKevin Wolf } 140797ac58cSKevin Wolf 1410b613881SKevin Wolf #define EXABYTES(x) ((long long)(x) << 60) 1420b613881SKevin Wolf #define PETABYTES(x) ((long long)(x) << 50) 1430b613881SKevin Wolf #define TERABYTES(x) ((long long)(x) << 40) 1440b613881SKevin Wolf #define GIGABYTES(x) ((long long)(x) << 30) 1450b613881SKevin Wolf #define MEGABYTES(x) ((long long)(x) << 20) 1460b613881SKevin Wolf #define KILOBYTES(x) ((long long)(x) << 10) 1470b613881SKevin Wolf 1480b613881SKevin Wolf #define TO_EXABYTES(x) ((x) / EXABYTES(1)) 1490b613881SKevin Wolf #define TO_PETABYTES(x) ((x) / PETABYTES(1)) 1500b613881SKevin Wolf #define TO_TERABYTES(x) ((x) / TERABYTES(1)) 1510b613881SKevin Wolf #define TO_GIGABYTES(x) ((x) / GIGABYTES(1)) 1520b613881SKevin Wolf #define TO_MEGABYTES(x) ((x) / MEGABYTES(1)) 1530b613881SKevin Wolf #define TO_KILOBYTES(x) ((x) / KILOBYTES(1)) 1540b613881SKevin Wolf 1550b613881SKevin Wolf static void cvtstr(double value, char *str, size_t size) 1560b613881SKevin Wolf { 1570b613881SKevin Wolf char *trim; 1580b613881SKevin Wolf const char *suffix; 1590b613881SKevin Wolf 1600b613881SKevin Wolf if (value >= EXABYTES(1)) { 1610b613881SKevin Wolf suffix = " EiB"; 1620b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_EXABYTES(value)); 1630b613881SKevin Wolf } else if (value >= PETABYTES(1)) { 1640b613881SKevin Wolf suffix = " PiB"; 1650b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_PETABYTES(value)); 1660b613881SKevin Wolf } else if (value >= TERABYTES(1)) { 1670b613881SKevin Wolf suffix = " TiB"; 1680b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_TERABYTES(value)); 1690b613881SKevin Wolf } else if (value >= GIGABYTES(1)) { 1700b613881SKevin Wolf suffix = " GiB"; 1710b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_GIGABYTES(value)); 1720b613881SKevin Wolf } else if (value >= MEGABYTES(1)) { 1730b613881SKevin Wolf suffix = " MiB"; 1740b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_MEGABYTES(value)); 1750b613881SKevin Wolf } else if (value >= KILOBYTES(1)) { 1760b613881SKevin Wolf suffix = " KiB"; 1770b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_KILOBYTES(value)); 1780b613881SKevin Wolf } else { 1790b613881SKevin Wolf suffix = " bytes"; 1800b613881SKevin Wolf snprintf(str, size - 6, "%f", value); 1810b613881SKevin Wolf } 1820b613881SKevin Wolf 1830b613881SKevin Wolf trim = strstr(str, ".000"); 1840b613881SKevin Wolf if (trim) { 1850b613881SKevin Wolf strcpy(trim, suffix); 1860b613881SKevin Wolf } else { 1870b613881SKevin Wolf strcat(str, suffix); 1880b613881SKevin Wolf } 1890b613881SKevin Wolf } 1900b613881SKevin Wolf 1910b613881SKevin Wolf 1920b613881SKevin Wolf 1930b613881SKevin Wolf static struct timeval tsub(struct timeval t1, struct timeval t2) 1940b613881SKevin Wolf { 1950b613881SKevin Wolf t1.tv_usec -= t2.tv_usec; 1960b613881SKevin Wolf if (t1.tv_usec < 0) { 1970b613881SKevin Wolf t1.tv_usec += 1000000; 1980b613881SKevin Wolf t1.tv_sec--; 1990b613881SKevin Wolf } 2000b613881SKevin Wolf t1.tv_sec -= t2.tv_sec; 2010b613881SKevin Wolf return t1; 2020b613881SKevin Wolf } 2030b613881SKevin Wolf 2040b613881SKevin Wolf static double tdiv(double value, struct timeval tv) 2050b613881SKevin Wolf { 2060b613881SKevin Wolf return value / ((double)tv.tv_sec + ((double)tv.tv_usec / 1000000.0)); 2070b613881SKevin Wolf } 2080b613881SKevin Wolf 2090b613881SKevin Wolf #define HOURS(sec) ((sec) / (60 * 60)) 2100b613881SKevin Wolf #define MINUTES(sec) (((sec) % (60 * 60)) / 60) 2110b613881SKevin Wolf #define SECONDS(sec) ((sec) % 60) 2120b613881SKevin Wolf 2130b613881SKevin Wolf enum { 2140b613881SKevin Wolf DEFAULT_TIME = 0x0, 2150b613881SKevin Wolf TERSE_FIXED_TIME = 0x1, 2160b613881SKevin Wolf VERBOSE_FIXED_TIME = 0x2, 2170b613881SKevin Wolf }; 2180b613881SKevin Wolf 2190b613881SKevin Wolf static void timestr(struct timeval *tv, char *ts, size_t size, int format) 2200b613881SKevin Wolf { 2210b613881SKevin Wolf double usec = (double)tv->tv_usec / 1000000.0; 2220b613881SKevin Wolf 2230b613881SKevin Wolf if (format & TERSE_FIXED_TIME) { 2240b613881SKevin Wolf if (!HOURS(tv->tv_sec)) { 2250b613881SKevin Wolf snprintf(ts, size, "%u:%02u.%02u", 2260b613881SKevin Wolf (unsigned int) MINUTES(tv->tv_sec), 2270b613881SKevin Wolf (unsigned int) SECONDS(tv->tv_sec), 2280b613881SKevin Wolf (unsigned int) (usec * 100)); 2290b613881SKevin Wolf return; 2300b613881SKevin Wolf } 2310b613881SKevin Wolf format |= VERBOSE_FIXED_TIME; /* fallback if hours needed */ 2320b613881SKevin Wolf } 2330b613881SKevin Wolf 2340b613881SKevin Wolf if ((format & VERBOSE_FIXED_TIME) || tv->tv_sec) { 2350b613881SKevin Wolf snprintf(ts, size, "%u:%02u:%02u.%02u", 2360b613881SKevin Wolf (unsigned int) HOURS(tv->tv_sec), 2370b613881SKevin Wolf (unsigned int) MINUTES(tv->tv_sec), 2380b613881SKevin Wolf (unsigned int) SECONDS(tv->tv_sec), 2390b613881SKevin Wolf (unsigned int) (usec * 100)); 2400b613881SKevin Wolf } else { 2410b613881SKevin Wolf snprintf(ts, size, "0.%04u sec", (unsigned int) (usec * 10000)); 2420b613881SKevin Wolf } 2430b613881SKevin Wolf } 2440b613881SKevin Wolf 245797ac58cSKevin Wolf /* 246797ac58cSKevin Wolf * Parse the pattern argument to various sub-commands. 247797ac58cSKevin Wolf * 248797ac58cSKevin Wolf * Because the pattern is used as an argument to memset it must evaluate 249797ac58cSKevin Wolf * to an unsigned integer that fits into a single byte. 250797ac58cSKevin Wolf */ 251797ac58cSKevin Wolf static int parse_pattern(const char *arg) 252797ac58cSKevin Wolf { 253797ac58cSKevin Wolf char *endptr = NULL; 254797ac58cSKevin Wolf long pattern; 255797ac58cSKevin Wolf 256797ac58cSKevin Wolf pattern = strtol(arg, &endptr, 0); 257797ac58cSKevin Wolf if (pattern < 0 || pattern > UCHAR_MAX || *endptr != '\0') { 258797ac58cSKevin Wolf printf("%s is not a valid pattern byte\n", arg); 259797ac58cSKevin Wolf return -1; 260797ac58cSKevin Wolf } 261797ac58cSKevin Wolf 262797ac58cSKevin Wolf return pattern; 263797ac58cSKevin Wolf } 264797ac58cSKevin Wolf 265797ac58cSKevin Wolf /* 266797ac58cSKevin Wolf * Memory allocation helpers. 267797ac58cSKevin Wolf * 268797ac58cSKevin Wolf * Make sure memory is aligned by default, or purposefully misaligned if 269797ac58cSKevin Wolf * that is specified on the command line. 270797ac58cSKevin Wolf */ 271797ac58cSKevin Wolf 272797ac58cSKevin Wolf #define MISALIGN_OFFSET 16 2734c7b7e9bSMax Reitz static void *qemu_io_alloc(BlockBackend *blk, size_t len, int pattern) 274797ac58cSKevin Wolf { 275797ac58cSKevin Wolf void *buf; 276797ac58cSKevin Wolf 277797ac58cSKevin Wolf if (qemuio_misalign) { 278797ac58cSKevin Wolf len += MISALIGN_OFFSET; 279797ac58cSKevin Wolf } 2804c7b7e9bSMax Reitz buf = blk_blockalign(blk, len); 281797ac58cSKevin Wolf memset(buf, pattern, len); 282797ac58cSKevin Wolf if (qemuio_misalign) { 283797ac58cSKevin Wolf buf += MISALIGN_OFFSET; 284797ac58cSKevin Wolf } 285797ac58cSKevin Wolf return buf; 286797ac58cSKevin Wolf } 287797ac58cSKevin Wolf 288797ac58cSKevin Wolf static void qemu_io_free(void *p) 289797ac58cSKevin Wolf { 290797ac58cSKevin Wolf if (qemuio_misalign) { 291797ac58cSKevin Wolf p -= MISALIGN_OFFSET; 292797ac58cSKevin Wolf } 293797ac58cSKevin Wolf qemu_vfree(p); 294797ac58cSKevin Wolf } 295797ac58cSKevin Wolf 296797ac58cSKevin Wolf static void dump_buffer(const void *buffer, int64_t offset, int len) 297797ac58cSKevin Wolf { 298797ac58cSKevin Wolf int i, j; 299797ac58cSKevin Wolf const uint8_t *p; 300797ac58cSKevin Wolf 301797ac58cSKevin Wolf for (i = 0, p = buffer; i < len; i += 16) { 302797ac58cSKevin Wolf const uint8_t *s = p; 303797ac58cSKevin Wolf 304797ac58cSKevin Wolf printf("%08" PRIx64 ": ", offset + i); 305797ac58cSKevin Wolf for (j = 0; j < 16 && i + j < len; j++, p++) { 306797ac58cSKevin Wolf printf("%02x ", *p); 307797ac58cSKevin Wolf } 308797ac58cSKevin Wolf printf(" "); 309797ac58cSKevin Wolf for (j = 0; j < 16 && i + j < len; j++, s++) { 310797ac58cSKevin Wolf if (isalnum(*s)) { 311797ac58cSKevin Wolf printf("%c", *s); 312797ac58cSKevin Wolf } else { 313797ac58cSKevin Wolf printf("."); 314797ac58cSKevin Wolf } 315797ac58cSKevin Wolf } 316797ac58cSKevin Wolf printf("\n"); 317797ac58cSKevin Wolf } 318797ac58cSKevin Wolf } 319797ac58cSKevin Wolf 320797ac58cSKevin Wolf static void print_report(const char *op, struct timeval *t, int64_t offset, 321797ac58cSKevin Wolf int count, int total, int cnt, int Cflag) 322797ac58cSKevin Wolf { 323797ac58cSKevin Wolf char s1[64], s2[64], ts[64]; 324797ac58cSKevin Wolf 325797ac58cSKevin Wolf timestr(t, ts, sizeof(ts), Cflag ? VERBOSE_FIXED_TIME : 0); 326797ac58cSKevin Wolf if (!Cflag) { 327797ac58cSKevin Wolf cvtstr((double)total, s1, sizeof(s1)); 328797ac58cSKevin Wolf cvtstr(tdiv((double)total, *t), s2, sizeof(s2)); 329797ac58cSKevin Wolf printf("%s %d/%d bytes at offset %" PRId64 "\n", 330797ac58cSKevin Wolf op, total, count, offset); 331797ac58cSKevin Wolf printf("%s, %d ops; %s (%s/sec and %.4f ops/sec)\n", 332797ac58cSKevin Wolf s1, cnt, ts, s2, tdiv((double)cnt, *t)); 333797ac58cSKevin Wolf } else {/* bytes,ops,time,bytes/sec,ops/sec */ 334797ac58cSKevin Wolf printf("%d,%d,%s,%.3f,%.3f\n", 335797ac58cSKevin Wolf total, cnt, ts, 336797ac58cSKevin Wolf tdiv((double)total, *t), 337797ac58cSKevin Wolf tdiv((double)cnt, *t)); 338797ac58cSKevin Wolf } 339797ac58cSKevin Wolf } 340797ac58cSKevin Wolf 341797ac58cSKevin Wolf /* 342797ac58cSKevin Wolf * Parse multiple length statements for vectored I/O, and construct an I/O 343797ac58cSKevin Wolf * vector matching it. 344797ac58cSKevin Wolf */ 345797ac58cSKevin Wolf static void * 3464c7b7e9bSMax Reitz create_iovec(BlockBackend *blk, QEMUIOVector *qiov, char **argv, int nr_iov, 347797ac58cSKevin Wolf int pattern) 348797ac58cSKevin Wolf { 349797ac58cSKevin Wolf size_t *sizes = g_new0(size_t, nr_iov); 350797ac58cSKevin Wolf size_t count = 0; 351797ac58cSKevin Wolf void *buf = NULL; 352797ac58cSKevin Wolf void *p; 353797ac58cSKevin Wolf int i; 354797ac58cSKevin Wolf 355797ac58cSKevin Wolf for (i = 0; i < nr_iov; i++) { 356797ac58cSKevin Wolf char *arg = argv[i]; 357797ac58cSKevin Wolf int64_t len; 358797ac58cSKevin Wolf 359797ac58cSKevin Wolf len = cvtnum(arg); 360797ac58cSKevin Wolf if (len < 0) { 361797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", arg); 362797ac58cSKevin Wolf goto fail; 363797ac58cSKevin Wolf } 364797ac58cSKevin Wolf 365797ac58cSKevin Wolf /* should be SIZE_T_MAX, but that doesn't exist */ 366797ac58cSKevin Wolf if (len > INT_MAX) { 367797ac58cSKevin Wolf printf("too large length argument -- %s\n", arg); 368797ac58cSKevin Wolf goto fail; 369797ac58cSKevin Wolf } 370797ac58cSKevin Wolf 371797ac58cSKevin Wolf if (len & 0x1ff) { 372797ac58cSKevin Wolf printf("length argument %" PRId64 373797ac58cSKevin Wolf " is not sector aligned\n", len); 374797ac58cSKevin Wolf goto fail; 375797ac58cSKevin Wolf } 376797ac58cSKevin Wolf 377797ac58cSKevin Wolf sizes[i] = len; 378797ac58cSKevin Wolf count += len; 379797ac58cSKevin Wolf } 380797ac58cSKevin Wolf 381797ac58cSKevin Wolf qemu_iovec_init(qiov, nr_iov); 382797ac58cSKevin Wolf 3834c7b7e9bSMax Reitz buf = p = qemu_io_alloc(blk, count, pattern); 384797ac58cSKevin Wolf 385797ac58cSKevin Wolf for (i = 0; i < nr_iov; i++) { 386797ac58cSKevin Wolf qemu_iovec_add(qiov, p, sizes[i]); 387797ac58cSKevin Wolf p += sizes[i]; 388797ac58cSKevin Wolf } 389797ac58cSKevin Wolf 390797ac58cSKevin Wolf fail: 391797ac58cSKevin Wolf g_free(sizes); 392797ac58cSKevin Wolf return buf; 393797ac58cSKevin Wolf } 394797ac58cSKevin Wolf 3954c7b7e9bSMax Reitz static int do_read(BlockBackend *blk, char *buf, int64_t offset, int count, 396797ac58cSKevin Wolf int *total) 397797ac58cSKevin Wolf { 398797ac58cSKevin Wolf int ret; 399797ac58cSKevin Wolf 4004c7b7e9bSMax Reitz ret = blk_read(blk, offset >> 9, (uint8_t *)buf, count >> 9); 401797ac58cSKevin Wolf if (ret < 0) { 402797ac58cSKevin Wolf return ret; 403797ac58cSKevin Wolf } 404797ac58cSKevin Wolf *total = count; 405797ac58cSKevin Wolf return 1; 406797ac58cSKevin Wolf } 407797ac58cSKevin Wolf 4084c7b7e9bSMax Reitz static int do_write(BlockBackend *blk, char *buf, int64_t offset, int count, 409797ac58cSKevin Wolf int *total) 410797ac58cSKevin Wolf { 411797ac58cSKevin Wolf int ret; 412797ac58cSKevin Wolf 4134c7b7e9bSMax Reitz ret = blk_write(blk, offset >> 9, (uint8_t *)buf, count >> 9); 414797ac58cSKevin Wolf if (ret < 0) { 415797ac58cSKevin Wolf return ret; 416797ac58cSKevin Wolf } 417797ac58cSKevin Wolf *total = count; 418797ac58cSKevin Wolf return 1; 419797ac58cSKevin Wolf } 420797ac58cSKevin Wolf 4214c7b7e9bSMax Reitz static int do_pread(BlockBackend *blk, char *buf, int64_t offset, int count, 422797ac58cSKevin Wolf int *total) 423797ac58cSKevin Wolf { 4244c7b7e9bSMax Reitz *total = blk_pread(blk, offset, (uint8_t *)buf, count); 425797ac58cSKevin Wolf if (*total < 0) { 426797ac58cSKevin Wolf return *total; 427797ac58cSKevin Wolf } 428797ac58cSKevin Wolf return 1; 429797ac58cSKevin Wolf } 430797ac58cSKevin Wolf 4314c7b7e9bSMax Reitz static int do_pwrite(BlockBackend *blk, char *buf, int64_t offset, int count, 432797ac58cSKevin Wolf int *total) 433797ac58cSKevin Wolf { 4344c7b7e9bSMax Reitz *total = blk_pwrite(blk, offset, (uint8_t *)buf, count); 435797ac58cSKevin Wolf if (*total < 0) { 436797ac58cSKevin Wolf return *total; 437797ac58cSKevin Wolf } 438797ac58cSKevin Wolf return 1; 439797ac58cSKevin Wolf } 440797ac58cSKevin Wolf 441797ac58cSKevin Wolf typedef struct { 4424c7b7e9bSMax Reitz BlockBackend *blk; 443797ac58cSKevin Wolf int64_t offset; 444797ac58cSKevin Wolf int count; 445797ac58cSKevin Wolf int *total; 446797ac58cSKevin Wolf int ret; 447797ac58cSKevin Wolf bool done; 448797ac58cSKevin Wolf } CoWriteZeroes; 449797ac58cSKevin Wolf 450797ac58cSKevin Wolf static void coroutine_fn co_write_zeroes_entry(void *opaque) 451797ac58cSKevin Wolf { 452797ac58cSKevin Wolf CoWriteZeroes *data = opaque; 453797ac58cSKevin Wolf 4544c7b7e9bSMax Reitz data->ret = blk_co_write_zeroes(data->blk, data->offset / BDRV_SECTOR_SIZE, 455aa7bfbffSPeter Lieven data->count / BDRV_SECTOR_SIZE, 0); 456797ac58cSKevin Wolf data->done = true; 457797ac58cSKevin Wolf if (data->ret < 0) { 458797ac58cSKevin Wolf *data->total = data->ret; 459797ac58cSKevin Wolf return; 460797ac58cSKevin Wolf } 461797ac58cSKevin Wolf 462797ac58cSKevin Wolf *data->total = data->count; 463797ac58cSKevin Wolf } 464797ac58cSKevin Wolf 4654c7b7e9bSMax Reitz static int do_co_write_zeroes(BlockBackend *blk, int64_t offset, int count, 466797ac58cSKevin Wolf int *total) 467797ac58cSKevin Wolf { 468797ac58cSKevin Wolf Coroutine *co; 469797ac58cSKevin Wolf CoWriteZeroes data = { 4704c7b7e9bSMax Reitz .blk = blk, 471797ac58cSKevin Wolf .offset = offset, 472797ac58cSKevin Wolf .count = count, 473797ac58cSKevin Wolf .total = total, 474797ac58cSKevin Wolf .done = false, 475797ac58cSKevin Wolf }; 476797ac58cSKevin Wolf 477797ac58cSKevin Wolf co = qemu_coroutine_create(co_write_zeroes_entry); 478797ac58cSKevin Wolf qemu_coroutine_enter(co, &data); 479797ac58cSKevin Wolf while (!data.done) { 4804c7b7e9bSMax Reitz aio_poll(blk_get_aio_context(blk), true); 481797ac58cSKevin Wolf } 482797ac58cSKevin Wolf if (data.ret < 0) { 483797ac58cSKevin Wolf return data.ret; 484797ac58cSKevin Wolf } else { 485797ac58cSKevin Wolf return 1; 486797ac58cSKevin Wolf } 487797ac58cSKevin Wolf } 488797ac58cSKevin Wolf 4894c7b7e9bSMax Reitz static int do_write_compressed(BlockBackend *blk, char *buf, int64_t offset, 490797ac58cSKevin Wolf int count, int *total) 491797ac58cSKevin Wolf { 492797ac58cSKevin Wolf int ret; 493797ac58cSKevin Wolf 4944c7b7e9bSMax Reitz ret = blk_write_compressed(blk, offset >> 9, (uint8_t *)buf, count >> 9); 495797ac58cSKevin Wolf if (ret < 0) { 496797ac58cSKevin Wolf return ret; 497797ac58cSKevin Wolf } 498797ac58cSKevin Wolf *total = count; 499797ac58cSKevin Wolf return 1; 500797ac58cSKevin Wolf } 501797ac58cSKevin Wolf 5024c7b7e9bSMax Reitz static int do_load_vmstate(BlockBackend *blk, char *buf, int64_t offset, 503797ac58cSKevin Wolf int count, int *total) 504797ac58cSKevin Wolf { 5054c7b7e9bSMax Reitz *total = blk_load_vmstate(blk, (uint8_t *)buf, offset, count); 506797ac58cSKevin Wolf if (*total < 0) { 507797ac58cSKevin Wolf return *total; 508797ac58cSKevin Wolf } 509797ac58cSKevin Wolf return 1; 510797ac58cSKevin Wolf } 511797ac58cSKevin Wolf 5124c7b7e9bSMax Reitz static int do_save_vmstate(BlockBackend *blk, char *buf, int64_t offset, 513797ac58cSKevin Wolf int count, int *total) 514797ac58cSKevin Wolf { 5154c7b7e9bSMax Reitz *total = blk_save_vmstate(blk, (uint8_t *)buf, offset, count); 516797ac58cSKevin Wolf if (*total < 0) { 517797ac58cSKevin Wolf return *total; 518797ac58cSKevin Wolf } 519797ac58cSKevin Wolf return 1; 520797ac58cSKevin Wolf } 521797ac58cSKevin Wolf 522797ac58cSKevin Wolf #define NOT_DONE 0x7fffffff 523797ac58cSKevin Wolf static void aio_rw_done(void *opaque, int ret) 524797ac58cSKevin Wolf { 525797ac58cSKevin Wolf *(int *)opaque = ret; 526797ac58cSKevin Wolf } 527797ac58cSKevin Wolf 5284c7b7e9bSMax Reitz static int do_aio_readv(BlockBackend *blk, QEMUIOVector *qiov, 529797ac58cSKevin Wolf int64_t offset, int *total) 530797ac58cSKevin Wolf { 531797ac58cSKevin Wolf int async_ret = NOT_DONE; 532797ac58cSKevin Wolf 5334c7b7e9bSMax Reitz blk_aio_readv(blk, offset >> 9, qiov, qiov->size >> 9, 534797ac58cSKevin Wolf aio_rw_done, &async_ret); 535797ac58cSKevin Wolf while (async_ret == NOT_DONE) { 536797ac58cSKevin Wolf main_loop_wait(false); 537797ac58cSKevin Wolf } 538797ac58cSKevin Wolf 539797ac58cSKevin Wolf *total = qiov->size; 540797ac58cSKevin Wolf return async_ret < 0 ? async_ret : 1; 541797ac58cSKevin Wolf } 542797ac58cSKevin Wolf 5434c7b7e9bSMax Reitz static int do_aio_writev(BlockBackend *blk, QEMUIOVector *qiov, 544797ac58cSKevin Wolf int64_t offset, int *total) 545797ac58cSKevin Wolf { 546797ac58cSKevin Wolf int async_ret = NOT_DONE; 547797ac58cSKevin Wolf 5484c7b7e9bSMax Reitz blk_aio_writev(blk, offset >> 9, qiov, qiov->size >> 9, 549797ac58cSKevin Wolf aio_rw_done, &async_ret); 550797ac58cSKevin Wolf while (async_ret == NOT_DONE) { 551797ac58cSKevin Wolf main_loop_wait(false); 552797ac58cSKevin Wolf } 553797ac58cSKevin Wolf 554797ac58cSKevin Wolf *total = qiov->size; 555797ac58cSKevin Wolf return async_ret < 0 ? async_ret : 1; 556797ac58cSKevin Wolf } 557797ac58cSKevin Wolf 558797ac58cSKevin Wolf struct multiwrite_async_ret { 559797ac58cSKevin Wolf int num_done; 560797ac58cSKevin Wolf int error; 561797ac58cSKevin Wolf }; 562797ac58cSKevin Wolf 563797ac58cSKevin Wolf static void multiwrite_cb(void *opaque, int ret) 564797ac58cSKevin Wolf { 565797ac58cSKevin Wolf struct multiwrite_async_ret *async_ret = opaque; 566797ac58cSKevin Wolf 567797ac58cSKevin Wolf async_ret->num_done++; 568797ac58cSKevin Wolf if (ret < 0) { 569797ac58cSKevin Wolf async_ret->error = ret; 570797ac58cSKevin Wolf } 571797ac58cSKevin Wolf } 572797ac58cSKevin Wolf 5734c7b7e9bSMax Reitz static int do_aio_multiwrite(BlockBackend *blk, BlockRequest* reqs, 574797ac58cSKevin Wolf int num_reqs, int *total) 575797ac58cSKevin Wolf { 576797ac58cSKevin Wolf int i, ret; 577797ac58cSKevin Wolf struct multiwrite_async_ret async_ret = { 578797ac58cSKevin Wolf .num_done = 0, 579797ac58cSKevin Wolf .error = 0, 580797ac58cSKevin Wolf }; 581797ac58cSKevin Wolf 582797ac58cSKevin Wolf *total = 0; 583797ac58cSKevin Wolf for (i = 0; i < num_reqs; i++) { 584797ac58cSKevin Wolf reqs[i].cb = multiwrite_cb; 585797ac58cSKevin Wolf reqs[i].opaque = &async_ret; 586797ac58cSKevin Wolf *total += reqs[i].qiov->size; 587797ac58cSKevin Wolf } 588797ac58cSKevin Wolf 5894c7b7e9bSMax Reitz ret = blk_aio_multiwrite(blk, reqs, num_reqs); 590797ac58cSKevin Wolf if (ret < 0) { 591797ac58cSKevin Wolf return ret; 592797ac58cSKevin Wolf } 593797ac58cSKevin Wolf 594797ac58cSKevin Wolf while (async_ret.num_done < num_reqs) { 595797ac58cSKevin Wolf main_loop_wait(false); 596797ac58cSKevin Wolf } 597797ac58cSKevin Wolf 598797ac58cSKevin Wolf return async_ret.error < 0 ? async_ret.error : 1; 599797ac58cSKevin Wolf } 600797ac58cSKevin Wolf 601797ac58cSKevin Wolf static void read_help(void) 602797ac58cSKevin Wolf { 603797ac58cSKevin Wolf printf( 604797ac58cSKevin Wolf "\n" 605797ac58cSKevin Wolf " reads a range of bytes from the given offset\n" 606797ac58cSKevin Wolf "\n" 607797ac58cSKevin Wolf " Example:\n" 608797ac58cSKevin Wolf " 'read -v 512 1k' - dumps 1 kilobyte read from 512 bytes into the file\n" 609797ac58cSKevin Wolf "\n" 610797ac58cSKevin Wolf " Reads a segment of the currently open file, optionally dumping it to the\n" 611797ac58cSKevin Wolf " standard output stream (with -v option) for subsequent inspection.\n" 612797ac58cSKevin Wolf " -b, -- read from the VM state rather than the virtual disk\n" 613797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 614797ac58cSKevin Wolf " -l, -- length for pattern verification (only with -P)\n" 6154c7b7e9bSMax Reitz " -p, -- use blk_pread to read the file\n" 616797ac58cSKevin Wolf " -P, -- use a pattern to verify read data\n" 617797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 618797ac58cSKevin Wolf " -s, -- start offset for pattern verification (only with -P)\n" 619797ac58cSKevin Wolf " -v, -- dump buffer to standard output\n" 620797ac58cSKevin Wolf "\n"); 621797ac58cSKevin Wolf } 622797ac58cSKevin Wolf 6234c7b7e9bSMax Reitz static int read_f(BlockBackend *blk, int argc, char **argv); 624797ac58cSKevin Wolf 625797ac58cSKevin Wolf static const cmdinfo_t read_cmd = { 626797ac58cSKevin Wolf .name = "read", 627797ac58cSKevin Wolf .altname = "r", 628797ac58cSKevin Wolf .cfunc = read_f, 629797ac58cSKevin Wolf .argmin = 2, 630797ac58cSKevin Wolf .argmax = -1, 631797ac58cSKevin Wolf .args = "[-abCpqv] [-P pattern [-s off] [-l len]] off len", 632797ac58cSKevin Wolf .oneline = "reads a number of bytes at a specified offset", 633797ac58cSKevin Wolf .help = read_help, 634797ac58cSKevin Wolf }; 635797ac58cSKevin Wolf 6364c7b7e9bSMax Reitz static int read_f(BlockBackend *blk, int argc, char **argv) 637797ac58cSKevin Wolf { 638797ac58cSKevin Wolf struct timeval t1, t2; 639797ac58cSKevin Wolf int Cflag = 0, pflag = 0, qflag = 0, vflag = 0; 640797ac58cSKevin Wolf int Pflag = 0, sflag = 0, lflag = 0, bflag = 0; 641797ac58cSKevin Wolf int c, cnt; 642797ac58cSKevin Wolf char *buf; 643797ac58cSKevin Wolf int64_t offset; 644797ac58cSKevin Wolf int count; 645797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 646797ac58cSKevin Wolf int total = 0; 647797ac58cSKevin Wolf int pattern = 0, pattern_offset = 0, pattern_count = 0; 648797ac58cSKevin Wolf 649*b062ad86SEric Blake while ((c = getopt(argc, argv, "bCl:pP:qs:v")) != -1) { 650797ac58cSKevin Wolf switch (c) { 651797ac58cSKevin Wolf case 'b': 652797ac58cSKevin Wolf bflag = 1; 653797ac58cSKevin Wolf break; 654797ac58cSKevin Wolf case 'C': 655797ac58cSKevin Wolf Cflag = 1; 656797ac58cSKevin Wolf break; 657797ac58cSKevin Wolf case 'l': 658797ac58cSKevin Wolf lflag = 1; 659797ac58cSKevin Wolf pattern_count = cvtnum(optarg); 660797ac58cSKevin Wolf if (pattern_count < 0) { 661797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", optarg); 662797ac58cSKevin Wolf return 0; 663797ac58cSKevin Wolf } 664797ac58cSKevin Wolf break; 665797ac58cSKevin Wolf case 'p': 666797ac58cSKevin Wolf pflag = 1; 667797ac58cSKevin Wolf break; 668797ac58cSKevin Wolf case 'P': 669797ac58cSKevin Wolf Pflag = 1; 670797ac58cSKevin Wolf pattern = parse_pattern(optarg); 671797ac58cSKevin Wolf if (pattern < 0) { 672797ac58cSKevin Wolf return 0; 673797ac58cSKevin Wolf } 674797ac58cSKevin Wolf break; 675797ac58cSKevin Wolf case 'q': 676797ac58cSKevin Wolf qflag = 1; 677797ac58cSKevin Wolf break; 678797ac58cSKevin Wolf case 's': 679797ac58cSKevin Wolf sflag = 1; 680797ac58cSKevin Wolf pattern_offset = cvtnum(optarg); 681797ac58cSKevin Wolf if (pattern_offset < 0) { 682797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", optarg); 683797ac58cSKevin Wolf return 0; 684797ac58cSKevin Wolf } 685797ac58cSKevin Wolf break; 686797ac58cSKevin Wolf case 'v': 687797ac58cSKevin Wolf vflag = 1; 688797ac58cSKevin Wolf break; 689797ac58cSKevin Wolf default: 690c2cdf5c5SKevin Wolf return qemuio_command_usage(&read_cmd); 691797ac58cSKevin Wolf } 692797ac58cSKevin Wolf } 693797ac58cSKevin Wolf 694797ac58cSKevin Wolf if (optind != argc - 2) { 695c2cdf5c5SKevin Wolf return qemuio_command_usage(&read_cmd); 696797ac58cSKevin Wolf } 697797ac58cSKevin Wolf 698797ac58cSKevin Wolf if (bflag && pflag) { 699797ac58cSKevin Wolf printf("-b and -p cannot be specified at the same time\n"); 700797ac58cSKevin Wolf return 0; 701797ac58cSKevin Wolf } 702797ac58cSKevin Wolf 703797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 704797ac58cSKevin Wolf if (offset < 0) { 705797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 706797ac58cSKevin Wolf return 0; 707797ac58cSKevin Wolf } 708797ac58cSKevin Wolf 709797ac58cSKevin Wolf optind++; 710797ac58cSKevin Wolf count = cvtnum(argv[optind]); 711797ac58cSKevin Wolf if (count < 0) { 712797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 713797ac58cSKevin Wolf return 0; 714797ac58cSKevin Wolf } 715797ac58cSKevin Wolf 716797ac58cSKevin Wolf if (!Pflag && (lflag || sflag)) { 717c2cdf5c5SKevin Wolf return qemuio_command_usage(&read_cmd); 718797ac58cSKevin Wolf } 719797ac58cSKevin Wolf 720797ac58cSKevin Wolf if (!lflag) { 721797ac58cSKevin Wolf pattern_count = count - pattern_offset; 722797ac58cSKevin Wolf } 723797ac58cSKevin Wolf 724797ac58cSKevin Wolf if ((pattern_count < 0) || (pattern_count + pattern_offset > count)) { 725797ac58cSKevin Wolf printf("pattern verification range exceeds end of read data\n"); 726797ac58cSKevin Wolf return 0; 727797ac58cSKevin Wolf } 728797ac58cSKevin Wolf 729797ac58cSKevin Wolf if (!pflag) { 730797ac58cSKevin Wolf if (offset & 0x1ff) { 731797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 732797ac58cSKevin Wolf offset); 733797ac58cSKevin Wolf return 0; 734797ac58cSKevin Wolf } 735797ac58cSKevin Wolf if (count & 0x1ff) { 736797ac58cSKevin Wolf printf("count %d is not sector aligned\n", 737797ac58cSKevin Wolf count); 738797ac58cSKevin Wolf return 0; 739797ac58cSKevin Wolf } 740797ac58cSKevin Wolf } 741797ac58cSKevin Wolf 7424c7b7e9bSMax Reitz buf = qemu_io_alloc(blk, count, 0xab); 743797ac58cSKevin Wolf 744797ac58cSKevin Wolf gettimeofday(&t1, NULL); 745797ac58cSKevin Wolf if (pflag) { 7464c7b7e9bSMax Reitz cnt = do_pread(blk, buf, offset, count, &total); 747797ac58cSKevin Wolf } else if (bflag) { 7484c7b7e9bSMax Reitz cnt = do_load_vmstate(blk, buf, offset, count, &total); 749797ac58cSKevin Wolf } else { 7504c7b7e9bSMax Reitz cnt = do_read(blk, buf, offset, count, &total); 751797ac58cSKevin Wolf } 752797ac58cSKevin Wolf gettimeofday(&t2, NULL); 753797ac58cSKevin Wolf 754797ac58cSKevin Wolf if (cnt < 0) { 755797ac58cSKevin Wolf printf("read failed: %s\n", strerror(-cnt)); 756797ac58cSKevin Wolf goto out; 757797ac58cSKevin Wolf } 758797ac58cSKevin Wolf 759797ac58cSKevin Wolf if (Pflag) { 760797ac58cSKevin Wolf void *cmp_buf = g_malloc(pattern_count); 761797ac58cSKevin Wolf memset(cmp_buf, pattern, pattern_count); 762797ac58cSKevin Wolf if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) { 763797ac58cSKevin Wolf printf("Pattern verification failed at offset %" 764797ac58cSKevin Wolf PRId64 ", %d bytes\n", 765797ac58cSKevin Wolf offset + pattern_offset, pattern_count); 766797ac58cSKevin Wolf } 767797ac58cSKevin Wolf g_free(cmp_buf); 768797ac58cSKevin Wolf } 769797ac58cSKevin Wolf 770797ac58cSKevin Wolf if (qflag) { 771797ac58cSKevin Wolf goto out; 772797ac58cSKevin Wolf } 773797ac58cSKevin Wolf 774797ac58cSKevin Wolf if (vflag) { 775797ac58cSKevin Wolf dump_buffer(buf, offset, count); 776797ac58cSKevin Wolf } 777797ac58cSKevin Wolf 778797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 779797ac58cSKevin Wolf t2 = tsub(t2, t1); 780797ac58cSKevin Wolf print_report("read", &t2, offset, count, total, cnt, Cflag); 781797ac58cSKevin Wolf 782797ac58cSKevin Wolf out: 783797ac58cSKevin Wolf qemu_io_free(buf); 784797ac58cSKevin Wolf 785797ac58cSKevin Wolf return 0; 786797ac58cSKevin Wolf } 787797ac58cSKevin Wolf 788797ac58cSKevin Wolf static void readv_help(void) 789797ac58cSKevin Wolf { 790797ac58cSKevin Wolf printf( 791797ac58cSKevin Wolf "\n" 792797ac58cSKevin Wolf " reads a range of bytes from the given offset into multiple buffers\n" 793797ac58cSKevin Wolf "\n" 794797ac58cSKevin Wolf " Example:\n" 795797ac58cSKevin Wolf " 'readv -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" 796797ac58cSKevin Wolf "\n" 797797ac58cSKevin Wolf " Reads a segment of the currently open file, optionally dumping it to the\n" 798797ac58cSKevin Wolf " standard output stream (with -v option) for subsequent inspection.\n" 799797ac58cSKevin Wolf " Uses multiple iovec buffers if more than one byte range is specified.\n" 800797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 801797ac58cSKevin Wolf " -P, -- use a pattern to verify read data\n" 802797ac58cSKevin Wolf " -v, -- dump buffer to standard output\n" 803797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 804797ac58cSKevin Wolf "\n"); 805797ac58cSKevin Wolf } 806797ac58cSKevin Wolf 8074c7b7e9bSMax Reitz static int readv_f(BlockBackend *blk, int argc, char **argv); 808797ac58cSKevin Wolf 809797ac58cSKevin Wolf static const cmdinfo_t readv_cmd = { 810797ac58cSKevin Wolf .name = "readv", 811797ac58cSKevin Wolf .cfunc = readv_f, 812797ac58cSKevin Wolf .argmin = 2, 813797ac58cSKevin Wolf .argmax = -1, 814797ac58cSKevin Wolf .args = "[-Cqv] [-P pattern ] off len [len..]", 815797ac58cSKevin Wolf .oneline = "reads a number of bytes at a specified offset", 816797ac58cSKevin Wolf .help = readv_help, 817797ac58cSKevin Wolf }; 818797ac58cSKevin Wolf 8194c7b7e9bSMax Reitz static int readv_f(BlockBackend *blk, int argc, char **argv) 820797ac58cSKevin Wolf { 821797ac58cSKevin Wolf struct timeval t1, t2; 822797ac58cSKevin Wolf int Cflag = 0, qflag = 0, vflag = 0; 823797ac58cSKevin Wolf int c, cnt; 824797ac58cSKevin Wolf char *buf; 825797ac58cSKevin Wolf int64_t offset; 826797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 827797ac58cSKevin Wolf int total = 0; 828797ac58cSKevin Wolf int nr_iov; 829797ac58cSKevin Wolf QEMUIOVector qiov; 830797ac58cSKevin Wolf int pattern = 0; 831797ac58cSKevin Wolf int Pflag = 0; 832797ac58cSKevin Wolf 833*b062ad86SEric Blake while ((c = getopt(argc, argv, "CP:qv")) != -1) { 834797ac58cSKevin Wolf switch (c) { 835797ac58cSKevin Wolf case 'C': 836797ac58cSKevin Wolf Cflag = 1; 837797ac58cSKevin Wolf break; 838797ac58cSKevin Wolf case 'P': 839797ac58cSKevin Wolf Pflag = 1; 840797ac58cSKevin Wolf pattern = parse_pattern(optarg); 841797ac58cSKevin Wolf if (pattern < 0) { 842797ac58cSKevin Wolf return 0; 843797ac58cSKevin Wolf } 844797ac58cSKevin Wolf break; 845797ac58cSKevin Wolf case 'q': 846797ac58cSKevin Wolf qflag = 1; 847797ac58cSKevin Wolf break; 848797ac58cSKevin Wolf case 'v': 849797ac58cSKevin Wolf vflag = 1; 850797ac58cSKevin Wolf break; 851797ac58cSKevin Wolf default: 852c2cdf5c5SKevin Wolf return qemuio_command_usage(&readv_cmd); 853797ac58cSKevin Wolf } 854797ac58cSKevin Wolf } 855797ac58cSKevin Wolf 856797ac58cSKevin Wolf if (optind > argc - 2) { 857c2cdf5c5SKevin Wolf return qemuio_command_usage(&readv_cmd); 858797ac58cSKevin Wolf } 859797ac58cSKevin Wolf 860797ac58cSKevin Wolf 861797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 862797ac58cSKevin Wolf if (offset < 0) { 863797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 864797ac58cSKevin Wolf return 0; 865797ac58cSKevin Wolf } 866797ac58cSKevin Wolf optind++; 867797ac58cSKevin Wolf 868797ac58cSKevin Wolf if (offset & 0x1ff) { 869797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 870797ac58cSKevin Wolf offset); 871797ac58cSKevin Wolf return 0; 872797ac58cSKevin Wolf } 873797ac58cSKevin Wolf 874797ac58cSKevin Wolf nr_iov = argc - optind; 8754c7b7e9bSMax Reitz buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, 0xab); 876797ac58cSKevin Wolf if (buf == NULL) { 877797ac58cSKevin Wolf return 0; 878797ac58cSKevin Wolf } 879797ac58cSKevin Wolf 880797ac58cSKevin Wolf gettimeofday(&t1, NULL); 8814c7b7e9bSMax Reitz cnt = do_aio_readv(blk, &qiov, offset, &total); 882797ac58cSKevin Wolf gettimeofday(&t2, NULL); 883797ac58cSKevin Wolf 884797ac58cSKevin Wolf if (cnt < 0) { 885797ac58cSKevin Wolf printf("readv failed: %s\n", strerror(-cnt)); 886797ac58cSKevin Wolf goto out; 887797ac58cSKevin Wolf } 888797ac58cSKevin Wolf 889797ac58cSKevin Wolf if (Pflag) { 890797ac58cSKevin Wolf void *cmp_buf = g_malloc(qiov.size); 891797ac58cSKevin Wolf memset(cmp_buf, pattern, qiov.size); 892797ac58cSKevin Wolf if (memcmp(buf, cmp_buf, qiov.size)) { 893797ac58cSKevin Wolf printf("Pattern verification failed at offset %" 894797ac58cSKevin Wolf PRId64 ", %zd bytes\n", offset, qiov.size); 895797ac58cSKevin Wolf } 896797ac58cSKevin Wolf g_free(cmp_buf); 897797ac58cSKevin Wolf } 898797ac58cSKevin Wolf 899797ac58cSKevin Wolf if (qflag) { 900797ac58cSKevin Wolf goto out; 901797ac58cSKevin Wolf } 902797ac58cSKevin Wolf 903797ac58cSKevin Wolf if (vflag) { 904797ac58cSKevin Wolf dump_buffer(buf, offset, qiov.size); 905797ac58cSKevin Wolf } 906797ac58cSKevin Wolf 907797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 908797ac58cSKevin Wolf t2 = tsub(t2, t1); 909797ac58cSKevin Wolf print_report("read", &t2, offset, qiov.size, total, cnt, Cflag); 910797ac58cSKevin Wolf 911797ac58cSKevin Wolf out: 912797ac58cSKevin Wolf qemu_iovec_destroy(&qiov); 913797ac58cSKevin Wolf qemu_io_free(buf); 914797ac58cSKevin Wolf return 0; 915797ac58cSKevin Wolf } 916797ac58cSKevin Wolf 917797ac58cSKevin Wolf static void write_help(void) 918797ac58cSKevin Wolf { 919797ac58cSKevin Wolf printf( 920797ac58cSKevin Wolf "\n" 921797ac58cSKevin Wolf " writes a range of bytes from the given offset\n" 922797ac58cSKevin Wolf "\n" 923797ac58cSKevin Wolf " Example:\n" 924797ac58cSKevin Wolf " 'write 512 1k' - writes 1 kilobyte at 512 bytes into the open file\n" 925797ac58cSKevin Wolf "\n" 926797ac58cSKevin Wolf " Writes into a segment of the currently open file, using a buffer\n" 927797ac58cSKevin Wolf " filled with a set pattern (0xcdcdcdcd).\n" 928797ac58cSKevin Wolf " -b, -- write to the VM state rather than the virtual disk\n" 9294c7b7e9bSMax Reitz " -c, -- write compressed data with blk_write_compressed\n" 9304c7b7e9bSMax Reitz " -p, -- use blk_pwrite to write the file\n" 931797ac58cSKevin Wolf " -P, -- use different pattern to fill file\n" 932797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 933797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 9344c7b7e9bSMax Reitz " -z, -- write zeroes using blk_co_write_zeroes\n" 935797ac58cSKevin Wolf "\n"); 936797ac58cSKevin Wolf } 937797ac58cSKevin Wolf 9384c7b7e9bSMax Reitz static int write_f(BlockBackend *blk, int argc, char **argv); 939797ac58cSKevin Wolf 940797ac58cSKevin Wolf static const cmdinfo_t write_cmd = { 941797ac58cSKevin Wolf .name = "write", 942797ac58cSKevin Wolf .altname = "w", 943797ac58cSKevin Wolf .cfunc = write_f, 944797ac58cSKevin Wolf .argmin = 2, 945797ac58cSKevin Wolf .argmax = -1, 946797ac58cSKevin Wolf .args = "[-bcCpqz] [-P pattern ] off len", 947797ac58cSKevin Wolf .oneline = "writes a number of bytes at a specified offset", 948797ac58cSKevin Wolf .help = write_help, 949797ac58cSKevin Wolf }; 950797ac58cSKevin Wolf 9514c7b7e9bSMax Reitz static int write_f(BlockBackend *blk, int argc, char **argv) 952797ac58cSKevin Wolf { 953797ac58cSKevin Wolf struct timeval t1, t2; 954797ac58cSKevin Wolf int Cflag = 0, pflag = 0, qflag = 0, bflag = 0, Pflag = 0, zflag = 0; 955797ac58cSKevin Wolf int cflag = 0; 956797ac58cSKevin Wolf int c, cnt; 957797ac58cSKevin Wolf char *buf = NULL; 958797ac58cSKevin Wolf int64_t offset; 959797ac58cSKevin Wolf int count; 960797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 961797ac58cSKevin Wolf int total = 0; 962797ac58cSKevin Wolf int pattern = 0xcd; 963797ac58cSKevin Wolf 964*b062ad86SEric Blake while ((c = getopt(argc, argv, "bcCpP:qz")) != -1) { 965797ac58cSKevin Wolf switch (c) { 966797ac58cSKevin Wolf case 'b': 967797ac58cSKevin Wolf bflag = 1; 968797ac58cSKevin Wolf break; 969797ac58cSKevin Wolf case 'c': 970797ac58cSKevin Wolf cflag = 1; 971797ac58cSKevin Wolf break; 972797ac58cSKevin Wolf case 'C': 973797ac58cSKevin Wolf Cflag = 1; 974797ac58cSKevin Wolf break; 975797ac58cSKevin Wolf case 'p': 976797ac58cSKevin Wolf pflag = 1; 977797ac58cSKevin Wolf break; 978797ac58cSKevin Wolf case 'P': 979797ac58cSKevin Wolf Pflag = 1; 980797ac58cSKevin Wolf pattern = parse_pattern(optarg); 981797ac58cSKevin Wolf if (pattern < 0) { 982797ac58cSKevin Wolf return 0; 983797ac58cSKevin Wolf } 984797ac58cSKevin Wolf break; 985797ac58cSKevin Wolf case 'q': 986797ac58cSKevin Wolf qflag = 1; 987797ac58cSKevin Wolf break; 988797ac58cSKevin Wolf case 'z': 989797ac58cSKevin Wolf zflag = 1; 990797ac58cSKevin Wolf break; 991797ac58cSKevin Wolf default: 992c2cdf5c5SKevin Wolf return qemuio_command_usage(&write_cmd); 993797ac58cSKevin Wolf } 994797ac58cSKevin Wolf } 995797ac58cSKevin Wolf 996797ac58cSKevin Wolf if (optind != argc - 2) { 997c2cdf5c5SKevin Wolf return qemuio_command_usage(&write_cmd); 998797ac58cSKevin Wolf } 999797ac58cSKevin Wolf 1000797ac58cSKevin Wolf if (bflag + pflag + zflag > 1) { 1001797ac58cSKevin Wolf printf("-b, -p, or -z cannot be specified at the same time\n"); 1002797ac58cSKevin Wolf return 0; 1003797ac58cSKevin Wolf } 1004797ac58cSKevin Wolf 1005797ac58cSKevin Wolf if (zflag && Pflag) { 1006797ac58cSKevin Wolf printf("-z and -P cannot be specified at the same time\n"); 1007797ac58cSKevin Wolf return 0; 1008797ac58cSKevin Wolf } 1009797ac58cSKevin Wolf 1010797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 1011797ac58cSKevin Wolf if (offset < 0) { 1012797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 1013797ac58cSKevin Wolf return 0; 1014797ac58cSKevin Wolf } 1015797ac58cSKevin Wolf 1016797ac58cSKevin Wolf optind++; 1017797ac58cSKevin Wolf count = cvtnum(argv[optind]); 1018797ac58cSKevin Wolf if (count < 0) { 1019797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 1020797ac58cSKevin Wolf return 0; 1021797ac58cSKevin Wolf } 1022797ac58cSKevin Wolf 1023797ac58cSKevin Wolf if (!pflag) { 1024797ac58cSKevin Wolf if (offset & 0x1ff) { 1025797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1026797ac58cSKevin Wolf offset); 1027797ac58cSKevin Wolf return 0; 1028797ac58cSKevin Wolf } 1029797ac58cSKevin Wolf 1030797ac58cSKevin Wolf if (count & 0x1ff) { 1031797ac58cSKevin Wolf printf("count %d is not sector aligned\n", 1032797ac58cSKevin Wolf count); 1033797ac58cSKevin Wolf return 0; 1034797ac58cSKevin Wolf } 1035797ac58cSKevin Wolf } 1036797ac58cSKevin Wolf 1037797ac58cSKevin Wolf if (!zflag) { 10384c7b7e9bSMax Reitz buf = qemu_io_alloc(blk, count, pattern); 1039797ac58cSKevin Wolf } 1040797ac58cSKevin Wolf 1041797ac58cSKevin Wolf gettimeofday(&t1, NULL); 1042797ac58cSKevin Wolf if (pflag) { 10434c7b7e9bSMax Reitz cnt = do_pwrite(blk, buf, offset, count, &total); 1044797ac58cSKevin Wolf } else if (bflag) { 10454c7b7e9bSMax Reitz cnt = do_save_vmstate(blk, buf, offset, count, &total); 1046797ac58cSKevin Wolf } else if (zflag) { 10474c7b7e9bSMax Reitz cnt = do_co_write_zeroes(blk, offset, count, &total); 1048797ac58cSKevin Wolf } else if (cflag) { 10494c7b7e9bSMax Reitz cnt = do_write_compressed(blk, buf, offset, count, &total); 1050797ac58cSKevin Wolf } else { 10514c7b7e9bSMax Reitz cnt = do_write(blk, buf, offset, count, &total); 1052797ac58cSKevin Wolf } 1053797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1054797ac58cSKevin Wolf 1055797ac58cSKevin Wolf if (cnt < 0) { 1056797ac58cSKevin Wolf printf("write failed: %s\n", strerror(-cnt)); 1057797ac58cSKevin Wolf goto out; 1058797ac58cSKevin Wolf } 1059797ac58cSKevin Wolf 1060797ac58cSKevin Wolf if (qflag) { 1061797ac58cSKevin Wolf goto out; 1062797ac58cSKevin Wolf } 1063797ac58cSKevin Wolf 1064797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1065797ac58cSKevin Wolf t2 = tsub(t2, t1); 1066797ac58cSKevin Wolf print_report("wrote", &t2, offset, count, total, cnt, Cflag); 1067797ac58cSKevin Wolf 1068797ac58cSKevin Wolf out: 1069797ac58cSKevin Wolf if (!zflag) { 1070797ac58cSKevin Wolf qemu_io_free(buf); 1071797ac58cSKevin Wolf } 1072797ac58cSKevin Wolf 1073797ac58cSKevin Wolf return 0; 1074797ac58cSKevin Wolf } 1075797ac58cSKevin Wolf 1076797ac58cSKevin Wolf static void 1077797ac58cSKevin Wolf writev_help(void) 1078797ac58cSKevin Wolf { 1079797ac58cSKevin Wolf printf( 1080797ac58cSKevin Wolf "\n" 1081797ac58cSKevin Wolf " writes a range of bytes from the given offset source from multiple buffers\n" 1082797ac58cSKevin Wolf "\n" 1083797ac58cSKevin Wolf " Example:\n" 10846e6507c0SMaria Kustova " 'writev 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" 1085797ac58cSKevin Wolf "\n" 1086797ac58cSKevin Wolf " Writes into a segment of the currently open file, using a buffer\n" 1087797ac58cSKevin Wolf " filled with a set pattern (0xcdcdcdcd).\n" 1088797ac58cSKevin Wolf " -P, -- use different pattern to fill file\n" 1089797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1090797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1091797ac58cSKevin Wolf "\n"); 1092797ac58cSKevin Wolf } 1093797ac58cSKevin Wolf 10944c7b7e9bSMax Reitz static int writev_f(BlockBackend *blk, int argc, char **argv); 1095797ac58cSKevin Wolf 1096797ac58cSKevin Wolf static const cmdinfo_t writev_cmd = { 1097797ac58cSKevin Wolf .name = "writev", 1098797ac58cSKevin Wolf .cfunc = writev_f, 1099797ac58cSKevin Wolf .argmin = 2, 1100797ac58cSKevin Wolf .argmax = -1, 1101797ac58cSKevin Wolf .args = "[-Cq] [-P pattern ] off len [len..]", 1102797ac58cSKevin Wolf .oneline = "writes a number of bytes at a specified offset", 1103797ac58cSKevin Wolf .help = writev_help, 1104797ac58cSKevin Wolf }; 1105797ac58cSKevin Wolf 11064c7b7e9bSMax Reitz static int writev_f(BlockBackend *blk, int argc, char **argv) 1107797ac58cSKevin Wolf { 1108797ac58cSKevin Wolf struct timeval t1, t2; 1109797ac58cSKevin Wolf int Cflag = 0, qflag = 0; 1110797ac58cSKevin Wolf int c, cnt; 1111797ac58cSKevin Wolf char *buf; 1112797ac58cSKevin Wolf int64_t offset; 1113797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 1114797ac58cSKevin Wolf int total = 0; 1115797ac58cSKevin Wolf int nr_iov; 1116797ac58cSKevin Wolf int pattern = 0xcd; 1117797ac58cSKevin Wolf QEMUIOVector qiov; 1118797ac58cSKevin Wolf 1119*b062ad86SEric Blake while ((c = getopt(argc, argv, "CqP:")) != -1) { 1120797ac58cSKevin Wolf switch (c) { 1121797ac58cSKevin Wolf case 'C': 1122797ac58cSKevin Wolf Cflag = 1; 1123797ac58cSKevin Wolf break; 1124797ac58cSKevin Wolf case 'q': 1125797ac58cSKevin Wolf qflag = 1; 1126797ac58cSKevin Wolf break; 1127797ac58cSKevin Wolf case 'P': 1128797ac58cSKevin Wolf pattern = parse_pattern(optarg); 1129797ac58cSKevin Wolf if (pattern < 0) { 1130797ac58cSKevin Wolf return 0; 1131797ac58cSKevin Wolf } 1132797ac58cSKevin Wolf break; 1133797ac58cSKevin Wolf default: 1134c2cdf5c5SKevin Wolf return qemuio_command_usage(&writev_cmd); 1135797ac58cSKevin Wolf } 1136797ac58cSKevin Wolf } 1137797ac58cSKevin Wolf 1138797ac58cSKevin Wolf if (optind > argc - 2) { 1139c2cdf5c5SKevin Wolf return qemuio_command_usage(&writev_cmd); 1140797ac58cSKevin Wolf } 1141797ac58cSKevin Wolf 1142797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 1143797ac58cSKevin Wolf if (offset < 0) { 1144797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 1145797ac58cSKevin Wolf return 0; 1146797ac58cSKevin Wolf } 1147797ac58cSKevin Wolf optind++; 1148797ac58cSKevin Wolf 1149797ac58cSKevin Wolf if (offset & 0x1ff) { 1150797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1151797ac58cSKevin Wolf offset); 1152797ac58cSKevin Wolf return 0; 1153797ac58cSKevin Wolf } 1154797ac58cSKevin Wolf 1155797ac58cSKevin Wolf nr_iov = argc - optind; 11564c7b7e9bSMax Reitz buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, pattern); 1157797ac58cSKevin Wolf if (buf == NULL) { 1158797ac58cSKevin Wolf return 0; 1159797ac58cSKevin Wolf } 1160797ac58cSKevin Wolf 1161797ac58cSKevin Wolf gettimeofday(&t1, NULL); 11624c7b7e9bSMax Reitz cnt = do_aio_writev(blk, &qiov, offset, &total); 1163797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1164797ac58cSKevin Wolf 1165797ac58cSKevin Wolf if (cnt < 0) { 1166797ac58cSKevin Wolf printf("writev failed: %s\n", strerror(-cnt)); 1167797ac58cSKevin Wolf goto out; 1168797ac58cSKevin Wolf } 1169797ac58cSKevin Wolf 1170797ac58cSKevin Wolf if (qflag) { 1171797ac58cSKevin Wolf goto out; 1172797ac58cSKevin Wolf } 1173797ac58cSKevin Wolf 1174797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1175797ac58cSKevin Wolf t2 = tsub(t2, t1); 1176797ac58cSKevin Wolf print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag); 1177797ac58cSKevin Wolf out: 1178797ac58cSKevin Wolf qemu_iovec_destroy(&qiov); 1179797ac58cSKevin Wolf qemu_io_free(buf); 1180797ac58cSKevin Wolf return 0; 1181797ac58cSKevin Wolf } 1182797ac58cSKevin Wolf 1183797ac58cSKevin Wolf static void multiwrite_help(void) 1184797ac58cSKevin Wolf { 1185797ac58cSKevin Wolf printf( 1186797ac58cSKevin Wolf "\n" 1187797ac58cSKevin Wolf " writes a range of bytes from the given offset source from multiple buffers,\n" 1188797ac58cSKevin Wolf " in a batch of requests that may be merged by qemu\n" 1189797ac58cSKevin Wolf "\n" 1190797ac58cSKevin Wolf " Example:\n" 1191797ac58cSKevin Wolf " 'multiwrite 512 1k 1k ; 4k 1k'\n" 1192797ac58cSKevin Wolf " writes 2 kB at 512 bytes and 1 kB at 4 kB into the open file\n" 1193797ac58cSKevin Wolf "\n" 1194797ac58cSKevin Wolf " Writes into a segment of the currently open file, using a buffer\n" 1195797ac58cSKevin Wolf " filled with a set pattern (0xcdcdcdcd). The pattern byte is increased\n" 1196797ac58cSKevin Wolf " by one for each request contained in the multiwrite command.\n" 1197797ac58cSKevin Wolf " -P, -- use different pattern to fill file\n" 1198797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1199797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1200797ac58cSKevin Wolf "\n"); 1201797ac58cSKevin Wolf } 1202797ac58cSKevin Wolf 12034c7b7e9bSMax Reitz static int multiwrite_f(BlockBackend *blk, int argc, char **argv); 1204797ac58cSKevin Wolf 1205797ac58cSKevin Wolf static const cmdinfo_t multiwrite_cmd = { 1206797ac58cSKevin Wolf .name = "multiwrite", 1207797ac58cSKevin Wolf .cfunc = multiwrite_f, 1208797ac58cSKevin Wolf .argmin = 2, 1209797ac58cSKevin Wolf .argmax = -1, 1210797ac58cSKevin Wolf .args = "[-Cq] [-P pattern ] off len [len..] [; off len [len..]..]", 1211797ac58cSKevin Wolf .oneline = "issues multiple write requests at once", 1212797ac58cSKevin Wolf .help = multiwrite_help, 1213797ac58cSKevin Wolf }; 1214797ac58cSKevin Wolf 12154c7b7e9bSMax Reitz static int multiwrite_f(BlockBackend *blk, int argc, char **argv) 1216797ac58cSKevin Wolf { 1217797ac58cSKevin Wolf struct timeval t1, t2; 1218797ac58cSKevin Wolf int Cflag = 0, qflag = 0; 1219797ac58cSKevin Wolf int c, cnt; 1220797ac58cSKevin Wolf char **buf; 1221797ac58cSKevin Wolf int64_t offset, first_offset = 0; 1222797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 1223797ac58cSKevin Wolf int total = 0; 1224797ac58cSKevin Wolf int nr_iov; 1225797ac58cSKevin Wolf int nr_reqs; 1226797ac58cSKevin Wolf int pattern = 0xcd; 1227797ac58cSKevin Wolf QEMUIOVector *qiovs; 1228797ac58cSKevin Wolf int i; 1229797ac58cSKevin Wolf BlockRequest *reqs; 1230797ac58cSKevin Wolf 1231*b062ad86SEric Blake while ((c = getopt(argc, argv, "CqP:")) != -1) { 1232797ac58cSKevin Wolf switch (c) { 1233797ac58cSKevin Wolf case 'C': 1234797ac58cSKevin Wolf Cflag = 1; 1235797ac58cSKevin Wolf break; 1236797ac58cSKevin Wolf case 'q': 1237797ac58cSKevin Wolf qflag = 1; 1238797ac58cSKevin Wolf break; 1239797ac58cSKevin Wolf case 'P': 1240797ac58cSKevin Wolf pattern = parse_pattern(optarg); 1241797ac58cSKevin Wolf if (pattern < 0) { 1242797ac58cSKevin Wolf return 0; 1243797ac58cSKevin Wolf } 1244797ac58cSKevin Wolf break; 1245797ac58cSKevin Wolf default: 1246c2cdf5c5SKevin Wolf return qemuio_command_usage(&writev_cmd); 1247797ac58cSKevin Wolf } 1248797ac58cSKevin Wolf } 1249797ac58cSKevin Wolf 1250797ac58cSKevin Wolf if (optind > argc - 2) { 1251c2cdf5c5SKevin Wolf return qemuio_command_usage(&writev_cmd); 1252797ac58cSKevin Wolf } 1253797ac58cSKevin Wolf 1254797ac58cSKevin Wolf nr_reqs = 1; 1255797ac58cSKevin Wolf for (i = optind; i < argc; i++) { 1256797ac58cSKevin Wolf if (!strcmp(argv[i], ";")) { 1257797ac58cSKevin Wolf nr_reqs++; 1258797ac58cSKevin Wolf } 1259797ac58cSKevin Wolf } 1260797ac58cSKevin Wolf 126102c4f26bSMarkus Armbruster reqs = g_new0(BlockRequest, nr_reqs); 126202c4f26bSMarkus Armbruster buf = g_new0(char *, nr_reqs); 126302c4f26bSMarkus Armbruster qiovs = g_new(QEMUIOVector, nr_reqs); 1264797ac58cSKevin Wolf 1265797ac58cSKevin Wolf for (i = 0; i < nr_reqs && optind < argc; i++) { 1266797ac58cSKevin Wolf int j; 1267797ac58cSKevin Wolf 1268797ac58cSKevin Wolf /* Read the offset of the request */ 1269797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 1270797ac58cSKevin Wolf if (offset < 0) { 1271797ac58cSKevin Wolf printf("non-numeric offset argument -- %s\n", argv[optind]); 1272797ac58cSKevin Wolf goto out; 1273797ac58cSKevin Wolf } 1274797ac58cSKevin Wolf optind++; 1275797ac58cSKevin Wolf 1276797ac58cSKevin Wolf if (offset & 0x1ff) { 1277797ac58cSKevin Wolf printf("offset %lld is not sector aligned\n", 1278797ac58cSKevin Wolf (long long)offset); 1279797ac58cSKevin Wolf goto out; 1280797ac58cSKevin Wolf } 1281797ac58cSKevin Wolf 1282797ac58cSKevin Wolf if (i == 0) { 1283797ac58cSKevin Wolf first_offset = offset; 1284797ac58cSKevin Wolf } 1285797ac58cSKevin Wolf 1286797ac58cSKevin Wolf /* Read lengths for qiov entries */ 1287797ac58cSKevin Wolf for (j = optind; j < argc; j++) { 1288797ac58cSKevin Wolf if (!strcmp(argv[j], ";")) { 1289797ac58cSKevin Wolf break; 1290797ac58cSKevin Wolf } 1291797ac58cSKevin Wolf } 1292797ac58cSKevin Wolf 1293797ac58cSKevin Wolf nr_iov = j - optind; 1294797ac58cSKevin Wolf 1295797ac58cSKevin Wolf /* Build request */ 12964c7b7e9bSMax Reitz buf[i] = create_iovec(blk, &qiovs[i], &argv[optind], nr_iov, pattern); 1297797ac58cSKevin Wolf if (buf[i] == NULL) { 1298797ac58cSKevin Wolf goto out; 1299797ac58cSKevin Wolf } 1300797ac58cSKevin Wolf 1301797ac58cSKevin Wolf reqs[i].qiov = &qiovs[i]; 1302797ac58cSKevin Wolf reqs[i].sector = offset >> 9; 1303797ac58cSKevin Wolf reqs[i].nb_sectors = reqs[i].qiov->size >> 9; 1304797ac58cSKevin Wolf 1305797ac58cSKevin Wolf optind = j + 1; 1306797ac58cSKevin Wolf 1307797ac58cSKevin Wolf pattern++; 1308797ac58cSKevin Wolf } 1309797ac58cSKevin Wolf 1310797ac58cSKevin Wolf /* If there were empty requests at the end, ignore them */ 1311797ac58cSKevin Wolf nr_reqs = i; 1312797ac58cSKevin Wolf 1313797ac58cSKevin Wolf gettimeofday(&t1, NULL); 13144c7b7e9bSMax Reitz cnt = do_aio_multiwrite(blk, reqs, nr_reqs, &total); 1315797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1316797ac58cSKevin Wolf 1317797ac58cSKevin Wolf if (cnt < 0) { 1318797ac58cSKevin Wolf printf("aio_multiwrite failed: %s\n", strerror(-cnt)); 1319797ac58cSKevin Wolf goto out; 1320797ac58cSKevin Wolf } 1321797ac58cSKevin Wolf 1322797ac58cSKevin Wolf if (qflag) { 1323797ac58cSKevin Wolf goto out; 1324797ac58cSKevin Wolf } 1325797ac58cSKevin Wolf 1326797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1327797ac58cSKevin Wolf t2 = tsub(t2, t1); 1328797ac58cSKevin Wolf print_report("wrote", &t2, first_offset, total, total, cnt, Cflag); 1329797ac58cSKevin Wolf out: 1330797ac58cSKevin Wolf for (i = 0; i < nr_reqs; i++) { 1331797ac58cSKevin Wolf qemu_io_free(buf[i]); 1332797ac58cSKevin Wolf if (reqs[i].qiov != NULL) { 1333797ac58cSKevin Wolf qemu_iovec_destroy(&qiovs[i]); 1334797ac58cSKevin Wolf } 1335797ac58cSKevin Wolf } 1336797ac58cSKevin Wolf g_free(buf); 1337797ac58cSKevin Wolf g_free(reqs); 1338797ac58cSKevin Wolf g_free(qiovs); 1339797ac58cSKevin Wolf return 0; 1340797ac58cSKevin Wolf } 1341797ac58cSKevin Wolf 1342797ac58cSKevin Wolf struct aio_ctx { 13434c7b7e9bSMax Reitz BlockBackend *blk; 1344797ac58cSKevin Wolf QEMUIOVector qiov; 1345797ac58cSKevin Wolf int64_t offset; 1346797ac58cSKevin Wolf char *buf; 1347797ac58cSKevin Wolf int qflag; 1348797ac58cSKevin Wolf int vflag; 1349797ac58cSKevin Wolf int Cflag; 1350797ac58cSKevin Wolf int Pflag; 1351a91f9584SFam Zheng BlockAcctCookie acct; 1352797ac58cSKevin Wolf int pattern; 1353797ac58cSKevin Wolf struct timeval t1; 1354797ac58cSKevin Wolf }; 1355797ac58cSKevin Wolf 1356797ac58cSKevin Wolf static void aio_write_done(void *opaque, int ret) 1357797ac58cSKevin Wolf { 1358797ac58cSKevin Wolf struct aio_ctx *ctx = opaque; 1359797ac58cSKevin Wolf struct timeval t2; 1360797ac58cSKevin Wolf 1361797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1362797ac58cSKevin Wolf 1363797ac58cSKevin Wolf 1364797ac58cSKevin Wolf if (ret < 0) { 1365797ac58cSKevin Wolf printf("aio_write failed: %s\n", strerror(-ret)); 1366797ac58cSKevin Wolf goto out; 1367797ac58cSKevin Wolf } 1368797ac58cSKevin Wolf 13694c7b7e9bSMax Reitz block_acct_done(blk_get_stats(ctx->blk), &ctx->acct); 1370a91f9584SFam Zheng 1371797ac58cSKevin Wolf if (ctx->qflag) { 1372797ac58cSKevin Wolf goto out; 1373797ac58cSKevin Wolf } 1374797ac58cSKevin Wolf 1375797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1376797ac58cSKevin Wolf t2 = tsub(t2, ctx->t1); 1377797ac58cSKevin Wolf print_report("wrote", &t2, ctx->offset, ctx->qiov.size, 1378797ac58cSKevin Wolf ctx->qiov.size, 1, ctx->Cflag); 1379797ac58cSKevin Wolf out: 1380797ac58cSKevin Wolf qemu_io_free(ctx->buf); 1381797ac58cSKevin Wolf qemu_iovec_destroy(&ctx->qiov); 1382797ac58cSKevin Wolf g_free(ctx); 1383797ac58cSKevin Wolf } 1384797ac58cSKevin Wolf 1385797ac58cSKevin Wolf static void aio_read_done(void *opaque, int ret) 1386797ac58cSKevin Wolf { 1387797ac58cSKevin Wolf struct aio_ctx *ctx = opaque; 1388797ac58cSKevin Wolf struct timeval t2; 1389797ac58cSKevin Wolf 1390797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1391797ac58cSKevin Wolf 1392797ac58cSKevin Wolf if (ret < 0) { 1393797ac58cSKevin Wolf printf("readv failed: %s\n", strerror(-ret)); 1394797ac58cSKevin Wolf goto out; 1395797ac58cSKevin Wolf } 1396797ac58cSKevin Wolf 1397797ac58cSKevin Wolf if (ctx->Pflag) { 1398797ac58cSKevin Wolf void *cmp_buf = g_malloc(ctx->qiov.size); 1399797ac58cSKevin Wolf 1400797ac58cSKevin Wolf memset(cmp_buf, ctx->pattern, ctx->qiov.size); 1401797ac58cSKevin Wolf if (memcmp(ctx->buf, cmp_buf, ctx->qiov.size)) { 1402797ac58cSKevin Wolf printf("Pattern verification failed at offset %" 1403797ac58cSKevin Wolf PRId64 ", %zd bytes\n", ctx->offset, ctx->qiov.size); 1404797ac58cSKevin Wolf } 1405797ac58cSKevin Wolf g_free(cmp_buf); 1406797ac58cSKevin Wolf } 1407797ac58cSKevin Wolf 14084c7b7e9bSMax Reitz block_acct_done(blk_get_stats(ctx->blk), &ctx->acct); 1409a91f9584SFam Zheng 1410797ac58cSKevin Wolf if (ctx->qflag) { 1411797ac58cSKevin Wolf goto out; 1412797ac58cSKevin Wolf } 1413797ac58cSKevin Wolf 1414797ac58cSKevin Wolf if (ctx->vflag) { 1415797ac58cSKevin Wolf dump_buffer(ctx->buf, ctx->offset, ctx->qiov.size); 1416797ac58cSKevin Wolf } 1417797ac58cSKevin Wolf 1418797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1419797ac58cSKevin Wolf t2 = tsub(t2, ctx->t1); 1420797ac58cSKevin Wolf print_report("read", &t2, ctx->offset, ctx->qiov.size, 1421797ac58cSKevin Wolf ctx->qiov.size, 1, ctx->Cflag); 1422797ac58cSKevin Wolf out: 1423797ac58cSKevin Wolf qemu_io_free(ctx->buf); 1424797ac58cSKevin Wolf qemu_iovec_destroy(&ctx->qiov); 1425797ac58cSKevin Wolf g_free(ctx); 1426797ac58cSKevin Wolf } 1427797ac58cSKevin Wolf 1428797ac58cSKevin Wolf static void aio_read_help(void) 1429797ac58cSKevin Wolf { 1430797ac58cSKevin Wolf printf( 1431797ac58cSKevin Wolf "\n" 1432797ac58cSKevin Wolf " asynchronously reads a range of bytes from the given offset\n" 1433797ac58cSKevin Wolf "\n" 1434797ac58cSKevin Wolf " Example:\n" 1435797ac58cSKevin Wolf " 'aio_read -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" 1436797ac58cSKevin Wolf "\n" 1437797ac58cSKevin Wolf " Reads a segment of the currently open file, optionally dumping it to the\n" 1438797ac58cSKevin Wolf " standard output stream (with -v option) for subsequent inspection.\n" 1439797ac58cSKevin Wolf " The read is performed asynchronously and the aio_flush command must be\n" 1440797ac58cSKevin Wolf " used to ensure all outstanding aio requests have been completed.\n" 1441797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1442797ac58cSKevin Wolf " -P, -- use a pattern to verify read data\n" 1443797ac58cSKevin Wolf " -v, -- dump buffer to standard output\n" 1444797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1445797ac58cSKevin Wolf "\n"); 1446797ac58cSKevin Wolf } 1447797ac58cSKevin Wolf 14484c7b7e9bSMax Reitz static int aio_read_f(BlockBackend *blk, int argc, char **argv); 1449797ac58cSKevin Wolf 1450797ac58cSKevin Wolf static const cmdinfo_t aio_read_cmd = { 1451797ac58cSKevin Wolf .name = "aio_read", 1452797ac58cSKevin Wolf .cfunc = aio_read_f, 1453797ac58cSKevin Wolf .argmin = 2, 1454797ac58cSKevin Wolf .argmax = -1, 1455797ac58cSKevin Wolf .args = "[-Cqv] [-P pattern ] off len [len..]", 1456797ac58cSKevin Wolf .oneline = "asynchronously reads a number of bytes", 1457797ac58cSKevin Wolf .help = aio_read_help, 1458797ac58cSKevin Wolf }; 1459797ac58cSKevin Wolf 14604c7b7e9bSMax Reitz static int aio_read_f(BlockBackend *blk, int argc, char **argv) 1461797ac58cSKevin Wolf { 1462797ac58cSKevin Wolf int nr_iov, c; 1463797ac58cSKevin Wolf struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); 1464797ac58cSKevin Wolf 14654c7b7e9bSMax Reitz ctx->blk = blk; 1466*b062ad86SEric Blake while ((c = getopt(argc, argv, "CP:qv")) != -1) { 1467797ac58cSKevin Wolf switch (c) { 1468797ac58cSKevin Wolf case 'C': 1469797ac58cSKevin Wolf ctx->Cflag = 1; 1470797ac58cSKevin Wolf break; 1471797ac58cSKevin Wolf case 'P': 1472797ac58cSKevin Wolf ctx->Pflag = 1; 1473797ac58cSKevin Wolf ctx->pattern = parse_pattern(optarg); 1474797ac58cSKevin Wolf if (ctx->pattern < 0) { 1475797ac58cSKevin Wolf g_free(ctx); 1476797ac58cSKevin Wolf return 0; 1477797ac58cSKevin Wolf } 1478797ac58cSKevin Wolf break; 1479797ac58cSKevin Wolf case 'q': 1480797ac58cSKevin Wolf ctx->qflag = 1; 1481797ac58cSKevin Wolf break; 1482797ac58cSKevin Wolf case 'v': 1483797ac58cSKevin Wolf ctx->vflag = 1; 1484797ac58cSKevin Wolf break; 1485797ac58cSKevin Wolf default: 1486797ac58cSKevin Wolf g_free(ctx); 1487c2cdf5c5SKevin Wolf return qemuio_command_usage(&aio_read_cmd); 1488797ac58cSKevin Wolf } 1489797ac58cSKevin Wolf } 1490797ac58cSKevin Wolf 1491797ac58cSKevin Wolf if (optind > argc - 2) { 1492797ac58cSKevin Wolf g_free(ctx); 1493c2cdf5c5SKevin Wolf return qemuio_command_usage(&aio_read_cmd); 1494797ac58cSKevin Wolf } 1495797ac58cSKevin Wolf 1496797ac58cSKevin Wolf ctx->offset = cvtnum(argv[optind]); 1497797ac58cSKevin Wolf if (ctx->offset < 0) { 1498797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 1499797ac58cSKevin Wolf g_free(ctx); 1500797ac58cSKevin Wolf return 0; 1501797ac58cSKevin Wolf } 1502797ac58cSKevin Wolf optind++; 1503797ac58cSKevin Wolf 1504797ac58cSKevin Wolf if (ctx->offset & 0x1ff) { 1505797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1506797ac58cSKevin Wolf ctx->offset); 1507797ac58cSKevin Wolf g_free(ctx); 1508797ac58cSKevin Wolf return 0; 1509797ac58cSKevin Wolf } 1510797ac58cSKevin Wolf 1511797ac58cSKevin Wolf nr_iov = argc - optind; 15124c7b7e9bSMax Reitz ctx->buf = create_iovec(blk, &ctx->qiov, &argv[optind], nr_iov, 0xab); 1513797ac58cSKevin Wolf if (ctx->buf == NULL) { 1514797ac58cSKevin Wolf g_free(ctx); 1515797ac58cSKevin Wolf return 0; 1516797ac58cSKevin Wolf } 1517797ac58cSKevin Wolf 1518797ac58cSKevin Wolf gettimeofday(&ctx->t1, NULL); 15194c7b7e9bSMax Reitz block_acct_start(blk_get_stats(blk), &ctx->acct, ctx->qiov.size, 15204c7b7e9bSMax Reitz BLOCK_ACCT_READ); 15214c7b7e9bSMax Reitz blk_aio_readv(blk, ctx->offset >> 9, &ctx->qiov, 1522797ac58cSKevin Wolf ctx->qiov.size >> 9, aio_read_done, ctx); 1523797ac58cSKevin Wolf return 0; 1524797ac58cSKevin Wolf } 1525797ac58cSKevin Wolf 1526797ac58cSKevin Wolf static void aio_write_help(void) 1527797ac58cSKevin Wolf { 1528797ac58cSKevin Wolf printf( 1529797ac58cSKevin Wolf "\n" 1530797ac58cSKevin Wolf " asynchronously writes a range of bytes from the given offset source\n" 1531797ac58cSKevin Wolf " from multiple buffers\n" 1532797ac58cSKevin Wolf "\n" 1533797ac58cSKevin Wolf " Example:\n" 1534797ac58cSKevin Wolf " 'aio_write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" 1535797ac58cSKevin Wolf "\n" 1536797ac58cSKevin Wolf " Writes into a segment of the currently open file, using a buffer\n" 1537797ac58cSKevin Wolf " filled with a set pattern (0xcdcdcdcd).\n" 1538797ac58cSKevin Wolf " The write is performed asynchronously and the aio_flush command must be\n" 1539797ac58cSKevin Wolf " used to ensure all outstanding aio requests have been completed.\n" 1540797ac58cSKevin Wolf " -P, -- use different pattern to fill file\n" 1541797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1542797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1543797ac58cSKevin Wolf "\n"); 1544797ac58cSKevin Wolf } 1545797ac58cSKevin Wolf 15464c7b7e9bSMax Reitz static int aio_write_f(BlockBackend *blk, int argc, char **argv); 1547797ac58cSKevin Wolf 1548797ac58cSKevin Wolf static const cmdinfo_t aio_write_cmd = { 1549797ac58cSKevin Wolf .name = "aio_write", 1550797ac58cSKevin Wolf .cfunc = aio_write_f, 1551797ac58cSKevin Wolf .argmin = 2, 1552797ac58cSKevin Wolf .argmax = -1, 1553797ac58cSKevin Wolf .args = "[-Cq] [-P pattern ] off len [len..]", 1554797ac58cSKevin Wolf .oneline = "asynchronously writes a number of bytes", 1555797ac58cSKevin Wolf .help = aio_write_help, 1556797ac58cSKevin Wolf }; 1557797ac58cSKevin Wolf 15584c7b7e9bSMax Reitz static int aio_write_f(BlockBackend *blk, int argc, char **argv) 1559797ac58cSKevin Wolf { 1560797ac58cSKevin Wolf int nr_iov, c; 1561797ac58cSKevin Wolf int pattern = 0xcd; 1562797ac58cSKevin Wolf struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); 1563797ac58cSKevin Wolf 15644c7b7e9bSMax Reitz ctx->blk = blk; 1565*b062ad86SEric Blake while ((c = getopt(argc, argv, "CqP:")) != -1) { 1566797ac58cSKevin Wolf switch (c) { 1567797ac58cSKevin Wolf case 'C': 1568797ac58cSKevin Wolf ctx->Cflag = 1; 1569797ac58cSKevin Wolf break; 1570797ac58cSKevin Wolf case 'q': 1571797ac58cSKevin Wolf ctx->qflag = 1; 1572797ac58cSKevin Wolf break; 1573797ac58cSKevin Wolf case 'P': 1574797ac58cSKevin Wolf pattern = parse_pattern(optarg); 1575797ac58cSKevin Wolf if (pattern < 0) { 1576797ac58cSKevin Wolf g_free(ctx); 1577797ac58cSKevin Wolf return 0; 1578797ac58cSKevin Wolf } 1579797ac58cSKevin Wolf break; 1580797ac58cSKevin Wolf default: 1581797ac58cSKevin Wolf g_free(ctx); 1582c2cdf5c5SKevin Wolf return qemuio_command_usage(&aio_write_cmd); 1583797ac58cSKevin Wolf } 1584797ac58cSKevin Wolf } 1585797ac58cSKevin Wolf 1586797ac58cSKevin Wolf if (optind > argc - 2) { 1587797ac58cSKevin Wolf g_free(ctx); 1588c2cdf5c5SKevin Wolf return qemuio_command_usage(&aio_write_cmd); 1589797ac58cSKevin Wolf } 1590797ac58cSKevin Wolf 1591797ac58cSKevin Wolf ctx->offset = cvtnum(argv[optind]); 1592797ac58cSKevin Wolf if (ctx->offset < 0) { 1593797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 1594797ac58cSKevin Wolf g_free(ctx); 1595797ac58cSKevin Wolf return 0; 1596797ac58cSKevin Wolf } 1597797ac58cSKevin Wolf optind++; 1598797ac58cSKevin Wolf 1599797ac58cSKevin Wolf if (ctx->offset & 0x1ff) { 1600797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1601797ac58cSKevin Wolf ctx->offset); 1602797ac58cSKevin Wolf g_free(ctx); 1603797ac58cSKevin Wolf return 0; 1604797ac58cSKevin Wolf } 1605797ac58cSKevin Wolf 1606797ac58cSKevin Wolf nr_iov = argc - optind; 16074c7b7e9bSMax Reitz ctx->buf = create_iovec(blk, &ctx->qiov, &argv[optind], nr_iov, pattern); 1608797ac58cSKevin Wolf if (ctx->buf == NULL) { 1609797ac58cSKevin Wolf g_free(ctx); 1610797ac58cSKevin Wolf return 0; 1611797ac58cSKevin Wolf } 1612797ac58cSKevin Wolf 1613797ac58cSKevin Wolf gettimeofday(&ctx->t1, NULL); 16144c7b7e9bSMax Reitz block_acct_start(blk_get_stats(blk), &ctx->acct, ctx->qiov.size, 16154c7b7e9bSMax Reitz BLOCK_ACCT_WRITE); 16164c7b7e9bSMax Reitz blk_aio_writev(blk, ctx->offset >> 9, &ctx->qiov, 1617797ac58cSKevin Wolf ctx->qiov.size >> 9, aio_write_done, ctx); 1618797ac58cSKevin Wolf return 0; 1619797ac58cSKevin Wolf } 1620797ac58cSKevin Wolf 16214c7b7e9bSMax Reitz static int aio_flush_f(BlockBackend *blk, int argc, char **argv) 1622797ac58cSKevin Wolf { 16234c7b7e9bSMax Reitz blk_drain_all(); 1624797ac58cSKevin Wolf return 0; 1625797ac58cSKevin Wolf } 1626797ac58cSKevin Wolf 1627797ac58cSKevin Wolf static const cmdinfo_t aio_flush_cmd = { 1628797ac58cSKevin Wolf .name = "aio_flush", 1629797ac58cSKevin Wolf .cfunc = aio_flush_f, 1630797ac58cSKevin Wolf .oneline = "completes all outstanding aio requests" 1631797ac58cSKevin Wolf }; 1632797ac58cSKevin Wolf 16334c7b7e9bSMax Reitz static int flush_f(BlockBackend *blk, int argc, char **argv) 1634797ac58cSKevin Wolf { 16354c7b7e9bSMax Reitz blk_flush(blk); 1636797ac58cSKevin Wolf return 0; 1637797ac58cSKevin Wolf } 1638797ac58cSKevin Wolf 1639797ac58cSKevin Wolf static const cmdinfo_t flush_cmd = { 1640797ac58cSKevin Wolf .name = "flush", 1641797ac58cSKevin Wolf .altname = "f", 1642797ac58cSKevin Wolf .cfunc = flush_f, 1643797ac58cSKevin Wolf .oneline = "flush all in-core file state to disk", 1644797ac58cSKevin Wolf }; 1645797ac58cSKevin Wolf 16464c7b7e9bSMax Reitz static int truncate_f(BlockBackend *blk, int argc, char **argv) 1647797ac58cSKevin Wolf { 1648797ac58cSKevin Wolf int64_t offset; 1649797ac58cSKevin Wolf int ret; 1650797ac58cSKevin Wolf 1651797ac58cSKevin Wolf offset = cvtnum(argv[1]); 1652797ac58cSKevin Wolf if (offset < 0) { 1653797ac58cSKevin Wolf printf("non-numeric truncate argument -- %s\n", argv[1]); 1654797ac58cSKevin Wolf return 0; 1655797ac58cSKevin Wolf } 1656797ac58cSKevin Wolf 16574c7b7e9bSMax Reitz ret = blk_truncate(blk, offset); 1658797ac58cSKevin Wolf if (ret < 0) { 1659797ac58cSKevin Wolf printf("truncate: %s\n", strerror(-ret)); 1660797ac58cSKevin Wolf return 0; 1661797ac58cSKevin Wolf } 1662797ac58cSKevin Wolf 1663797ac58cSKevin Wolf return 0; 1664797ac58cSKevin Wolf } 1665797ac58cSKevin Wolf 1666797ac58cSKevin Wolf static const cmdinfo_t truncate_cmd = { 1667797ac58cSKevin Wolf .name = "truncate", 1668797ac58cSKevin Wolf .altname = "t", 1669797ac58cSKevin Wolf .cfunc = truncate_f, 1670797ac58cSKevin Wolf .argmin = 1, 1671797ac58cSKevin Wolf .argmax = 1, 1672797ac58cSKevin Wolf .args = "off", 1673797ac58cSKevin Wolf .oneline = "truncates the current file at the given offset", 1674797ac58cSKevin Wolf }; 1675797ac58cSKevin Wolf 16764c7b7e9bSMax Reitz static int length_f(BlockBackend *blk, int argc, char **argv) 1677797ac58cSKevin Wolf { 1678797ac58cSKevin Wolf int64_t size; 1679797ac58cSKevin Wolf char s1[64]; 1680797ac58cSKevin Wolf 16814c7b7e9bSMax Reitz size = blk_getlength(blk); 1682797ac58cSKevin Wolf if (size < 0) { 1683797ac58cSKevin Wolf printf("getlength: %s\n", strerror(-size)); 1684797ac58cSKevin Wolf return 0; 1685797ac58cSKevin Wolf } 1686797ac58cSKevin Wolf 1687797ac58cSKevin Wolf cvtstr(size, s1, sizeof(s1)); 1688797ac58cSKevin Wolf printf("%s\n", s1); 1689797ac58cSKevin Wolf return 0; 1690797ac58cSKevin Wolf } 1691797ac58cSKevin Wolf 1692797ac58cSKevin Wolf 1693797ac58cSKevin Wolf static const cmdinfo_t length_cmd = { 1694797ac58cSKevin Wolf .name = "length", 1695797ac58cSKevin Wolf .altname = "l", 1696797ac58cSKevin Wolf .cfunc = length_f, 1697797ac58cSKevin Wolf .oneline = "gets the length of the current file", 1698797ac58cSKevin Wolf }; 1699797ac58cSKevin Wolf 1700797ac58cSKevin Wolf 17014c7b7e9bSMax Reitz static int info_f(BlockBackend *blk, int argc, char **argv) 1702797ac58cSKevin Wolf { 17034c7b7e9bSMax Reitz BlockDriverState *bs = blk_bs(blk); 1704797ac58cSKevin Wolf BlockDriverInfo bdi; 1705a8d8ecb7SMax Reitz ImageInfoSpecific *spec_info; 1706797ac58cSKevin Wolf char s1[64], s2[64]; 1707797ac58cSKevin Wolf int ret; 1708797ac58cSKevin Wolf 1709797ac58cSKevin Wolf if (bs->drv && bs->drv->format_name) { 1710797ac58cSKevin Wolf printf("format name: %s\n", bs->drv->format_name); 1711797ac58cSKevin Wolf } 1712797ac58cSKevin Wolf if (bs->drv && bs->drv->protocol_name) { 1713797ac58cSKevin Wolf printf("format name: %s\n", bs->drv->protocol_name); 1714797ac58cSKevin Wolf } 1715797ac58cSKevin Wolf 1716797ac58cSKevin Wolf ret = bdrv_get_info(bs, &bdi); 1717797ac58cSKevin Wolf if (ret) { 1718797ac58cSKevin Wolf return 0; 1719797ac58cSKevin Wolf } 1720797ac58cSKevin Wolf 1721797ac58cSKevin Wolf cvtstr(bdi.cluster_size, s1, sizeof(s1)); 1722797ac58cSKevin Wolf cvtstr(bdi.vm_state_offset, s2, sizeof(s2)); 1723797ac58cSKevin Wolf 1724797ac58cSKevin Wolf printf("cluster size: %s\n", s1); 1725797ac58cSKevin Wolf printf("vm state offset: %s\n", s2); 1726797ac58cSKevin Wolf 1727a8d8ecb7SMax Reitz spec_info = bdrv_get_specific_info(bs); 1728a8d8ecb7SMax Reitz if (spec_info) { 1729a8d8ecb7SMax Reitz printf("Format specific information:\n"); 1730a8d8ecb7SMax Reitz bdrv_image_info_specific_dump(fprintf, stdout, spec_info); 1731a8d8ecb7SMax Reitz qapi_free_ImageInfoSpecific(spec_info); 1732a8d8ecb7SMax Reitz } 1733a8d8ecb7SMax Reitz 1734797ac58cSKevin Wolf return 0; 1735797ac58cSKevin Wolf } 1736797ac58cSKevin Wolf 1737797ac58cSKevin Wolf 1738797ac58cSKevin Wolf 1739797ac58cSKevin Wolf static const cmdinfo_t info_cmd = { 1740797ac58cSKevin Wolf .name = "info", 1741797ac58cSKevin Wolf .altname = "i", 1742797ac58cSKevin Wolf .cfunc = info_f, 1743797ac58cSKevin Wolf .oneline = "prints information about the current file", 1744797ac58cSKevin Wolf }; 1745797ac58cSKevin Wolf 1746797ac58cSKevin Wolf static void discard_help(void) 1747797ac58cSKevin Wolf { 1748797ac58cSKevin Wolf printf( 1749797ac58cSKevin Wolf "\n" 1750797ac58cSKevin Wolf " discards a range of bytes from the given offset\n" 1751797ac58cSKevin Wolf "\n" 1752797ac58cSKevin Wolf " Example:\n" 1753797ac58cSKevin Wolf " 'discard 512 1k' - discards 1 kilobyte from 512 bytes into the file\n" 1754797ac58cSKevin Wolf "\n" 1755797ac58cSKevin Wolf " Discards a segment of the currently open file.\n" 1756797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1757797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1758797ac58cSKevin Wolf "\n"); 1759797ac58cSKevin Wolf } 1760797ac58cSKevin Wolf 17614c7b7e9bSMax Reitz static int discard_f(BlockBackend *blk, int argc, char **argv); 1762797ac58cSKevin Wolf 1763797ac58cSKevin Wolf static const cmdinfo_t discard_cmd = { 1764797ac58cSKevin Wolf .name = "discard", 1765797ac58cSKevin Wolf .altname = "d", 1766797ac58cSKevin Wolf .cfunc = discard_f, 1767797ac58cSKevin Wolf .argmin = 2, 1768797ac58cSKevin Wolf .argmax = -1, 1769797ac58cSKevin Wolf .args = "[-Cq] off len", 1770797ac58cSKevin Wolf .oneline = "discards a number of bytes at a specified offset", 1771797ac58cSKevin Wolf .help = discard_help, 1772797ac58cSKevin Wolf }; 1773797ac58cSKevin Wolf 17744c7b7e9bSMax Reitz static int discard_f(BlockBackend *blk, int argc, char **argv) 1775797ac58cSKevin Wolf { 1776797ac58cSKevin Wolf struct timeval t1, t2; 1777797ac58cSKevin Wolf int Cflag = 0, qflag = 0; 1778797ac58cSKevin Wolf int c, ret; 1779797ac58cSKevin Wolf int64_t offset; 1780797ac58cSKevin Wolf int count; 1781797ac58cSKevin Wolf 1782*b062ad86SEric Blake while ((c = getopt(argc, argv, "Cq")) != -1) { 1783797ac58cSKevin Wolf switch (c) { 1784797ac58cSKevin Wolf case 'C': 1785797ac58cSKevin Wolf Cflag = 1; 1786797ac58cSKevin Wolf break; 1787797ac58cSKevin Wolf case 'q': 1788797ac58cSKevin Wolf qflag = 1; 1789797ac58cSKevin Wolf break; 1790797ac58cSKevin Wolf default: 1791c2cdf5c5SKevin Wolf return qemuio_command_usage(&discard_cmd); 1792797ac58cSKevin Wolf } 1793797ac58cSKevin Wolf } 1794797ac58cSKevin Wolf 1795797ac58cSKevin Wolf if (optind != argc - 2) { 1796c2cdf5c5SKevin Wolf return qemuio_command_usage(&discard_cmd); 1797797ac58cSKevin Wolf } 1798797ac58cSKevin Wolf 1799797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 1800797ac58cSKevin Wolf if (offset < 0) { 1801797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 1802797ac58cSKevin Wolf return 0; 1803797ac58cSKevin Wolf } 1804797ac58cSKevin Wolf 1805797ac58cSKevin Wolf optind++; 1806797ac58cSKevin Wolf count = cvtnum(argv[optind]); 1807797ac58cSKevin Wolf if (count < 0) { 1808797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[optind]); 1809797ac58cSKevin Wolf return 0; 1810797ac58cSKevin Wolf } 1811797ac58cSKevin Wolf 1812797ac58cSKevin Wolf gettimeofday(&t1, NULL); 18134c7b7e9bSMax Reitz ret = blk_discard(blk, offset >> BDRV_SECTOR_BITS, 1814797ac58cSKevin Wolf count >> BDRV_SECTOR_BITS); 1815797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1816797ac58cSKevin Wolf 1817797ac58cSKevin Wolf if (ret < 0) { 1818797ac58cSKevin Wolf printf("discard failed: %s\n", strerror(-ret)); 1819797ac58cSKevin Wolf goto out; 1820797ac58cSKevin Wolf } 1821797ac58cSKevin Wolf 1822797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1823797ac58cSKevin Wolf if (!qflag) { 1824797ac58cSKevin Wolf t2 = tsub(t2, t1); 1825797ac58cSKevin Wolf print_report("discard", &t2, offset, count, count, 1, Cflag); 1826797ac58cSKevin Wolf } 1827797ac58cSKevin Wolf 1828797ac58cSKevin Wolf out: 1829797ac58cSKevin Wolf return 0; 1830797ac58cSKevin Wolf } 1831797ac58cSKevin Wolf 18324c7b7e9bSMax Reitz static int alloc_f(BlockBackend *blk, int argc, char **argv) 1833797ac58cSKevin Wolf { 18344c7b7e9bSMax Reitz BlockDriverState *bs = blk_bs(blk); 1835797ac58cSKevin Wolf int64_t offset, sector_num; 1836797ac58cSKevin Wolf int nb_sectors, remaining; 1837797ac58cSKevin Wolf char s1[64]; 1838797ac58cSKevin Wolf int num, sum_alloc; 1839797ac58cSKevin Wolf int ret; 1840797ac58cSKevin Wolf 1841797ac58cSKevin Wolf offset = cvtnum(argv[1]); 1842797ac58cSKevin Wolf if (offset < 0) { 1843797ac58cSKevin Wolf printf("non-numeric offset argument -- %s\n", argv[1]); 1844797ac58cSKevin Wolf return 0; 1845797ac58cSKevin Wolf } else if (offset & 0x1ff) { 1846797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1847797ac58cSKevin Wolf offset); 1848797ac58cSKevin Wolf return 0; 1849797ac58cSKevin Wolf } 1850797ac58cSKevin Wolf 1851797ac58cSKevin Wolf if (argc == 3) { 1852797ac58cSKevin Wolf nb_sectors = cvtnum(argv[2]); 1853797ac58cSKevin Wolf if (nb_sectors < 0) { 1854797ac58cSKevin Wolf printf("non-numeric length argument -- %s\n", argv[2]); 1855797ac58cSKevin Wolf return 0; 1856797ac58cSKevin Wolf } 1857797ac58cSKevin Wolf } else { 1858797ac58cSKevin Wolf nb_sectors = 1; 1859797ac58cSKevin Wolf } 1860797ac58cSKevin Wolf 1861797ac58cSKevin Wolf remaining = nb_sectors; 1862797ac58cSKevin Wolf sum_alloc = 0; 1863797ac58cSKevin Wolf sector_num = offset >> 9; 1864797ac58cSKevin Wolf while (remaining) { 1865797ac58cSKevin Wolf ret = bdrv_is_allocated(bs, sector_num, remaining, &num); 1866d663640cSPaolo Bonzini if (ret < 0) { 1867d663640cSPaolo Bonzini printf("is_allocated failed: %s\n", strerror(-ret)); 1868d663640cSPaolo Bonzini return 0; 1869d663640cSPaolo Bonzini } 1870797ac58cSKevin Wolf sector_num += num; 1871797ac58cSKevin Wolf remaining -= num; 1872797ac58cSKevin Wolf if (ret) { 1873797ac58cSKevin Wolf sum_alloc += num; 1874797ac58cSKevin Wolf } 1875797ac58cSKevin Wolf if (num == 0) { 1876797ac58cSKevin Wolf nb_sectors -= remaining; 1877797ac58cSKevin Wolf remaining = 0; 1878797ac58cSKevin Wolf } 1879797ac58cSKevin Wolf } 1880797ac58cSKevin Wolf 1881797ac58cSKevin Wolf cvtstr(offset, s1, sizeof(s1)); 1882797ac58cSKevin Wolf 1883797ac58cSKevin Wolf printf("%d/%d sectors allocated at offset %s\n", 1884797ac58cSKevin Wolf sum_alloc, nb_sectors, s1); 1885797ac58cSKevin Wolf return 0; 1886797ac58cSKevin Wolf } 1887797ac58cSKevin Wolf 1888797ac58cSKevin Wolf static const cmdinfo_t alloc_cmd = { 1889797ac58cSKevin Wolf .name = "alloc", 1890797ac58cSKevin Wolf .altname = "a", 1891797ac58cSKevin Wolf .argmin = 1, 1892797ac58cSKevin Wolf .argmax = 2, 1893797ac58cSKevin Wolf .cfunc = alloc_f, 1894797ac58cSKevin Wolf .args = "off [sectors]", 1895797ac58cSKevin Wolf .oneline = "checks if a sector is present in the file", 1896797ac58cSKevin Wolf }; 1897797ac58cSKevin Wolf 1898797ac58cSKevin Wolf 1899797ac58cSKevin Wolf static int map_is_allocated(BlockDriverState *bs, int64_t sector_num, 1900797ac58cSKevin Wolf int64_t nb_sectors, int64_t *pnum) 1901797ac58cSKevin Wolf { 1902797ac58cSKevin Wolf int num, num_checked; 1903797ac58cSKevin Wolf int ret, firstret; 1904797ac58cSKevin Wolf 1905797ac58cSKevin Wolf num_checked = MIN(nb_sectors, INT_MAX); 1906797ac58cSKevin Wolf ret = bdrv_is_allocated(bs, sector_num, num_checked, &num); 1907797ac58cSKevin Wolf if (ret < 0) { 1908797ac58cSKevin Wolf return ret; 1909797ac58cSKevin Wolf } 1910797ac58cSKevin Wolf 1911797ac58cSKevin Wolf firstret = ret; 1912797ac58cSKevin Wolf *pnum = num; 1913797ac58cSKevin Wolf 1914797ac58cSKevin Wolf while (nb_sectors > 0 && ret == firstret) { 1915797ac58cSKevin Wolf sector_num += num; 1916797ac58cSKevin Wolf nb_sectors -= num; 1917797ac58cSKevin Wolf 1918797ac58cSKevin Wolf num_checked = MIN(nb_sectors, INT_MAX); 1919797ac58cSKevin Wolf ret = bdrv_is_allocated(bs, sector_num, num_checked, &num); 19204b25bbc4SMax Reitz if (ret == firstret && num) { 1921797ac58cSKevin Wolf *pnum += num; 1922797ac58cSKevin Wolf } else { 1923797ac58cSKevin Wolf break; 1924797ac58cSKevin Wolf } 1925797ac58cSKevin Wolf } 1926797ac58cSKevin Wolf 1927797ac58cSKevin Wolf return firstret; 1928797ac58cSKevin Wolf } 1929797ac58cSKevin Wolf 19304c7b7e9bSMax Reitz static int map_f(BlockBackend *blk, int argc, char **argv) 1931797ac58cSKevin Wolf { 1932797ac58cSKevin Wolf int64_t offset; 19334c7b7e9bSMax Reitz int64_t nb_sectors, total_sectors; 1934797ac58cSKevin Wolf char s1[64]; 1935797ac58cSKevin Wolf int64_t num; 1936797ac58cSKevin Wolf int ret; 1937797ac58cSKevin Wolf const char *retstr; 1938797ac58cSKevin Wolf 1939797ac58cSKevin Wolf offset = 0; 19404c7b7e9bSMax Reitz total_sectors = blk_nb_sectors(blk); 19414c7b7e9bSMax Reitz if (total_sectors < 0) { 19424c7b7e9bSMax Reitz error_report("Failed to query image length: %s", 19434c7b7e9bSMax Reitz strerror(-total_sectors)); 19444c7b7e9bSMax Reitz return 0; 19454c7b7e9bSMax Reitz } 19464c7b7e9bSMax Reitz 19474c7b7e9bSMax Reitz nb_sectors = total_sectors; 1948797ac58cSKevin Wolf 1949797ac58cSKevin Wolf do { 19504c7b7e9bSMax Reitz ret = map_is_allocated(blk_bs(blk), offset, nb_sectors, &num); 1951797ac58cSKevin Wolf if (ret < 0) { 1952797ac58cSKevin Wolf error_report("Failed to get allocation status: %s", strerror(-ret)); 1953797ac58cSKevin Wolf return 0; 19544b25bbc4SMax Reitz } else if (!num) { 19554b25bbc4SMax Reitz error_report("Unexpected end of image"); 19564b25bbc4SMax Reitz return 0; 1957797ac58cSKevin Wolf } 1958797ac58cSKevin Wolf 1959797ac58cSKevin Wolf retstr = ret ? " allocated" : "not allocated"; 1960797ac58cSKevin Wolf cvtstr(offset << 9ULL, s1, sizeof(s1)); 1961797ac58cSKevin Wolf printf("[% 24" PRId64 "] % 8" PRId64 "/% 8" PRId64 " sectors %s " 1962797ac58cSKevin Wolf "at offset %s (%d)\n", 1963797ac58cSKevin Wolf offset << 9ULL, num, nb_sectors, retstr, s1, ret); 1964797ac58cSKevin Wolf 1965797ac58cSKevin Wolf offset += num; 1966797ac58cSKevin Wolf nb_sectors -= num; 19674c7b7e9bSMax Reitz } while (offset < total_sectors); 1968797ac58cSKevin Wolf 1969797ac58cSKevin Wolf return 0; 1970797ac58cSKevin Wolf } 1971797ac58cSKevin Wolf 1972797ac58cSKevin Wolf static const cmdinfo_t map_cmd = { 1973797ac58cSKevin Wolf .name = "map", 1974797ac58cSKevin Wolf .argmin = 0, 1975797ac58cSKevin Wolf .argmax = 0, 1976797ac58cSKevin Wolf .cfunc = map_f, 1977797ac58cSKevin Wolf .args = "", 1978797ac58cSKevin Wolf .oneline = "prints the allocated areas of a file", 1979797ac58cSKevin Wolf }; 1980797ac58cSKevin Wolf 19814c7b7e9bSMax Reitz static int break_f(BlockBackend *blk, int argc, char **argv) 1982797ac58cSKevin Wolf { 1983797ac58cSKevin Wolf int ret; 1984797ac58cSKevin Wolf 19854c7b7e9bSMax Reitz ret = bdrv_debug_breakpoint(blk_bs(blk), argv[1], argv[2]); 1986797ac58cSKevin Wolf if (ret < 0) { 1987797ac58cSKevin Wolf printf("Could not set breakpoint: %s\n", strerror(-ret)); 1988797ac58cSKevin Wolf } 1989797ac58cSKevin Wolf 1990797ac58cSKevin Wolf return 0; 1991797ac58cSKevin Wolf } 1992797ac58cSKevin Wolf 19934c7b7e9bSMax Reitz static int remove_break_f(BlockBackend *blk, int argc, char **argv) 19944cc70e93SFam Zheng { 19954cc70e93SFam Zheng int ret; 19964cc70e93SFam Zheng 19974c7b7e9bSMax Reitz ret = bdrv_debug_remove_breakpoint(blk_bs(blk), argv[1]); 19984cc70e93SFam Zheng if (ret < 0) { 19994cc70e93SFam Zheng printf("Could not remove breakpoint %s: %s\n", argv[1], strerror(-ret)); 20004cc70e93SFam Zheng } 20014cc70e93SFam Zheng 20024cc70e93SFam Zheng return 0; 20034cc70e93SFam Zheng } 20044cc70e93SFam Zheng 2005797ac58cSKevin Wolf static const cmdinfo_t break_cmd = { 2006797ac58cSKevin Wolf .name = "break", 2007797ac58cSKevin Wolf .argmin = 2, 2008797ac58cSKevin Wolf .argmax = 2, 2009797ac58cSKevin Wolf .cfunc = break_f, 2010797ac58cSKevin Wolf .args = "event tag", 2011797ac58cSKevin Wolf .oneline = "sets a breakpoint on event and tags the stopped " 2012797ac58cSKevin Wolf "request as tag", 2013797ac58cSKevin Wolf }; 2014797ac58cSKevin Wolf 20154cc70e93SFam Zheng static const cmdinfo_t remove_break_cmd = { 20164cc70e93SFam Zheng .name = "remove_break", 20174cc70e93SFam Zheng .argmin = 1, 20184cc70e93SFam Zheng .argmax = 1, 20194cc70e93SFam Zheng .cfunc = remove_break_f, 20204cc70e93SFam Zheng .args = "tag", 20214cc70e93SFam Zheng .oneline = "remove a breakpoint by tag", 20224cc70e93SFam Zheng }; 20234cc70e93SFam Zheng 20244c7b7e9bSMax Reitz static int resume_f(BlockBackend *blk, int argc, char **argv) 2025797ac58cSKevin Wolf { 2026797ac58cSKevin Wolf int ret; 2027797ac58cSKevin Wolf 20284c7b7e9bSMax Reitz ret = bdrv_debug_resume(blk_bs(blk), argv[1]); 2029797ac58cSKevin Wolf if (ret < 0) { 2030797ac58cSKevin Wolf printf("Could not resume request: %s\n", strerror(-ret)); 2031797ac58cSKevin Wolf } 2032797ac58cSKevin Wolf 2033797ac58cSKevin Wolf return 0; 2034797ac58cSKevin Wolf } 2035797ac58cSKevin Wolf 2036797ac58cSKevin Wolf static const cmdinfo_t resume_cmd = { 2037797ac58cSKevin Wolf .name = "resume", 2038797ac58cSKevin Wolf .argmin = 1, 2039797ac58cSKevin Wolf .argmax = 1, 2040797ac58cSKevin Wolf .cfunc = resume_f, 2041797ac58cSKevin Wolf .args = "tag", 2042797ac58cSKevin Wolf .oneline = "resumes the request tagged as tag", 2043797ac58cSKevin Wolf }; 2044797ac58cSKevin Wolf 20454c7b7e9bSMax Reitz static int wait_break_f(BlockBackend *blk, int argc, char **argv) 2046797ac58cSKevin Wolf { 20474c7b7e9bSMax Reitz while (!bdrv_debug_is_suspended(blk_bs(blk), argv[1])) { 20484c7b7e9bSMax Reitz aio_poll(blk_get_aio_context(blk), true); 2049797ac58cSKevin Wolf } 2050797ac58cSKevin Wolf 2051797ac58cSKevin Wolf return 0; 2052797ac58cSKevin Wolf } 2053797ac58cSKevin Wolf 2054797ac58cSKevin Wolf static const cmdinfo_t wait_break_cmd = { 2055797ac58cSKevin Wolf .name = "wait_break", 2056797ac58cSKevin Wolf .argmin = 1, 2057797ac58cSKevin Wolf .argmax = 1, 2058797ac58cSKevin Wolf .cfunc = wait_break_f, 2059797ac58cSKevin Wolf .args = "tag", 2060797ac58cSKevin Wolf .oneline = "waits for the suspension of a request", 2061797ac58cSKevin Wolf }; 2062797ac58cSKevin Wolf 20634c7b7e9bSMax Reitz static int abort_f(BlockBackend *blk, int argc, char **argv) 2064797ac58cSKevin Wolf { 2065797ac58cSKevin Wolf abort(); 2066797ac58cSKevin Wolf } 2067797ac58cSKevin Wolf 2068797ac58cSKevin Wolf static const cmdinfo_t abort_cmd = { 2069797ac58cSKevin Wolf .name = "abort", 2070797ac58cSKevin Wolf .cfunc = abort_f, 2071797ac58cSKevin Wolf .flags = CMD_NOFILE_OK, 2072797ac58cSKevin Wolf .oneline = "simulate a program crash using abort(3)", 2073797ac58cSKevin Wolf }; 2074797ac58cSKevin Wolf 20750e82dc7bSMax Reitz static void sigraise_help(void) 20760e82dc7bSMax Reitz { 20770e82dc7bSMax Reitz printf( 20780e82dc7bSMax Reitz "\n" 20790e82dc7bSMax Reitz " raises the given signal\n" 20800e82dc7bSMax Reitz "\n" 20810e82dc7bSMax Reitz " Example:\n" 20820e82dc7bSMax Reitz " 'sigraise %i' - raises SIGTERM\n" 20830e82dc7bSMax Reitz "\n" 20840e82dc7bSMax Reitz " Invokes raise(signal), where \"signal\" is the mandatory integer argument\n" 20850e82dc7bSMax Reitz " given to sigraise.\n" 20860e82dc7bSMax Reitz "\n", SIGTERM); 20870e82dc7bSMax Reitz } 20880e82dc7bSMax Reitz 20894c7b7e9bSMax Reitz static int sigraise_f(BlockBackend *blk, int argc, char **argv); 20900e82dc7bSMax Reitz 20910e82dc7bSMax Reitz static const cmdinfo_t sigraise_cmd = { 20920e82dc7bSMax Reitz .name = "sigraise", 20930e82dc7bSMax Reitz .cfunc = sigraise_f, 20940e82dc7bSMax Reitz .argmin = 1, 20950e82dc7bSMax Reitz .argmax = 1, 20960e82dc7bSMax Reitz .flags = CMD_NOFILE_OK, 20970e82dc7bSMax Reitz .args = "signal", 20980e82dc7bSMax Reitz .oneline = "raises a signal", 20990e82dc7bSMax Reitz .help = sigraise_help, 21000e82dc7bSMax Reitz }; 21010e82dc7bSMax Reitz 21024c7b7e9bSMax Reitz static int sigraise_f(BlockBackend *blk, int argc, char **argv) 21030e82dc7bSMax Reitz { 21040e82dc7bSMax Reitz int sig = cvtnum(argv[1]); 21050e82dc7bSMax Reitz if (sig < 0) { 21060e82dc7bSMax Reitz printf("non-numeric signal number argument -- %s\n", argv[1]); 21070e82dc7bSMax Reitz return 0; 21080e82dc7bSMax Reitz } 21090e82dc7bSMax Reitz 21100e82dc7bSMax Reitz /* Using raise() to kill this process does not necessarily flush all open 21110e82dc7bSMax Reitz * streams. At least stdout and stderr (although the latter should be 21120e82dc7bSMax Reitz * non-buffered anyway) should be flushed, though. */ 21130e82dc7bSMax Reitz fflush(stdout); 21140e82dc7bSMax Reitz fflush(stderr); 21150e82dc7bSMax Reitz 21160e82dc7bSMax Reitz raise(sig); 21170e82dc7bSMax Reitz return 0; 21180e82dc7bSMax Reitz } 21190e82dc7bSMax Reitz 2120cd33d02aSKevin Wolf static void sleep_cb(void *opaque) 2121cd33d02aSKevin Wolf { 2122cd33d02aSKevin Wolf bool *expired = opaque; 2123cd33d02aSKevin Wolf *expired = true; 2124cd33d02aSKevin Wolf } 2125cd33d02aSKevin Wolf 21264c7b7e9bSMax Reitz static int sleep_f(BlockBackend *blk, int argc, char **argv) 2127cd33d02aSKevin Wolf { 2128cd33d02aSKevin Wolf char *endptr; 2129cd33d02aSKevin Wolf long ms; 2130cd33d02aSKevin Wolf struct QEMUTimer *timer; 2131cd33d02aSKevin Wolf bool expired = false; 2132cd33d02aSKevin Wolf 2133cd33d02aSKevin Wolf ms = strtol(argv[1], &endptr, 0); 2134cd33d02aSKevin Wolf if (ms < 0 || *endptr != '\0') { 2135cd33d02aSKevin Wolf printf("%s is not a valid number\n", argv[1]); 2136cd33d02aSKevin Wolf return 0; 2137cd33d02aSKevin Wolf } 2138cd33d02aSKevin Wolf 2139cd33d02aSKevin Wolf timer = timer_new_ns(QEMU_CLOCK_HOST, sleep_cb, &expired); 2140cd33d02aSKevin Wolf timer_mod(timer, qemu_clock_get_ns(QEMU_CLOCK_HOST) + SCALE_MS * ms); 2141cd33d02aSKevin Wolf 2142cd33d02aSKevin Wolf while (!expired) { 2143cd33d02aSKevin Wolf main_loop_wait(false); 2144cd33d02aSKevin Wolf } 2145cd33d02aSKevin Wolf 2146cd33d02aSKevin Wolf timer_free(timer); 2147cd33d02aSKevin Wolf 2148cd33d02aSKevin Wolf return 0; 2149cd33d02aSKevin Wolf } 2150cd33d02aSKevin Wolf 2151cd33d02aSKevin Wolf static const cmdinfo_t sleep_cmd = { 2152cd33d02aSKevin Wolf .name = "sleep", 2153cd33d02aSKevin Wolf .argmin = 1, 2154cd33d02aSKevin Wolf .argmax = 1, 2155cd33d02aSKevin Wolf .cfunc = sleep_f, 2156cd33d02aSKevin Wolf .flags = CMD_NOFILE_OK, 2157cd33d02aSKevin Wolf .oneline = "waits for the given value in milliseconds", 2158cd33d02aSKevin Wolf }; 2159cd33d02aSKevin Wolf 2160f18a834aSKevin Wolf static void help_oneline(const char *cmd, const cmdinfo_t *ct) 2161f18a834aSKevin Wolf { 2162f18a834aSKevin Wolf if (cmd) { 2163f18a834aSKevin Wolf printf("%s ", cmd); 2164f18a834aSKevin Wolf } else { 2165f18a834aSKevin Wolf printf("%s ", ct->name); 2166f18a834aSKevin Wolf if (ct->altname) { 2167f18a834aSKevin Wolf printf("(or %s) ", ct->altname); 2168f18a834aSKevin Wolf } 2169f18a834aSKevin Wolf } 2170f18a834aSKevin Wolf 2171f18a834aSKevin Wolf if (ct->args) { 2172f18a834aSKevin Wolf printf("%s ", ct->args); 2173f18a834aSKevin Wolf } 2174f18a834aSKevin Wolf printf("-- %s\n", ct->oneline); 2175f18a834aSKevin Wolf } 2176f18a834aSKevin Wolf 2177f18a834aSKevin Wolf static void help_onecmd(const char *cmd, const cmdinfo_t *ct) 2178f18a834aSKevin Wolf { 2179f18a834aSKevin Wolf help_oneline(cmd, ct); 2180f18a834aSKevin Wolf if (ct->help) { 2181f18a834aSKevin Wolf ct->help(); 2182f18a834aSKevin Wolf } 2183f18a834aSKevin Wolf } 2184f18a834aSKevin Wolf 2185f18a834aSKevin Wolf static void help_all(void) 2186f18a834aSKevin Wolf { 2187f18a834aSKevin Wolf const cmdinfo_t *ct; 2188f18a834aSKevin Wolf 2189f18a834aSKevin Wolf for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { 2190f18a834aSKevin Wolf help_oneline(ct->name, ct); 2191f18a834aSKevin Wolf } 2192f18a834aSKevin Wolf printf("\nUse 'help commandname' for extended help.\n"); 2193f18a834aSKevin Wolf } 2194f18a834aSKevin Wolf 21954c7b7e9bSMax Reitz static int help_f(BlockBackend *blk, int argc, char **argv) 2196f18a834aSKevin Wolf { 2197f18a834aSKevin Wolf const cmdinfo_t *ct; 2198f18a834aSKevin Wolf 2199f18a834aSKevin Wolf if (argc == 1) { 2200f18a834aSKevin Wolf help_all(); 2201f18a834aSKevin Wolf return 0; 2202f18a834aSKevin Wolf } 2203f18a834aSKevin Wolf 2204f18a834aSKevin Wolf ct = find_command(argv[1]); 2205f18a834aSKevin Wolf if (ct == NULL) { 2206f18a834aSKevin Wolf printf("command %s not found\n", argv[1]); 2207f18a834aSKevin Wolf return 0; 2208f18a834aSKevin Wolf } 2209f18a834aSKevin Wolf 2210f18a834aSKevin Wolf help_onecmd(argv[1], ct); 2211f18a834aSKevin Wolf return 0; 2212f18a834aSKevin Wolf } 2213f18a834aSKevin Wolf 2214f18a834aSKevin Wolf static const cmdinfo_t help_cmd = { 2215f18a834aSKevin Wolf .name = "help", 2216f18a834aSKevin Wolf .altname = "?", 2217f18a834aSKevin Wolf .cfunc = help_f, 2218f18a834aSKevin Wolf .argmin = 0, 2219f18a834aSKevin Wolf .argmax = 1, 2220f18a834aSKevin Wolf .flags = CMD_FLAG_GLOBAL, 2221f18a834aSKevin Wolf .args = "[command]", 2222f18a834aSKevin Wolf .oneline = "help for one or all commands", 2223f18a834aSKevin Wolf }; 2224f18a834aSKevin Wolf 22254c7b7e9bSMax Reitz bool qemuio_command(BlockBackend *blk, const char *cmd) 2226dd583296SKevin Wolf { 2227dd583296SKevin Wolf char *input; 2228dd583296SKevin Wolf const cmdinfo_t *ct; 2229dd583296SKevin Wolf char **v; 2230dd583296SKevin Wolf int c; 2231dd583296SKevin Wolf bool done = false; 2232dd583296SKevin Wolf 2233dd583296SKevin Wolf input = g_strdup(cmd); 2234dd583296SKevin Wolf v = breakline(input, &c); 2235dd583296SKevin Wolf if (c) { 2236dd583296SKevin Wolf ct = find_command(v[0]); 2237dd583296SKevin Wolf if (ct) { 22384c7b7e9bSMax Reitz done = command(blk, ct, c, v); 2239dd583296SKevin Wolf } else { 2240dd583296SKevin Wolf fprintf(stderr, "command \"%s\" not found\n", v[0]); 2241dd583296SKevin Wolf } 2242dd583296SKevin Wolf } 2243dd583296SKevin Wolf g_free(input); 2244dd583296SKevin Wolf g_free(v); 2245dd583296SKevin Wolf 2246dd583296SKevin Wolf return done; 2247dd583296SKevin Wolf } 2248dd583296SKevin Wolf 2249797ac58cSKevin Wolf static void __attribute((constructor)) init_qemuio_commands(void) 2250797ac58cSKevin Wolf { 2251797ac58cSKevin Wolf /* initialize commands */ 2252c2cdf5c5SKevin Wolf qemuio_add_command(&help_cmd); 2253c2cdf5c5SKevin Wolf qemuio_add_command(&read_cmd); 2254c2cdf5c5SKevin Wolf qemuio_add_command(&readv_cmd); 2255c2cdf5c5SKevin Wolf qemuio_add_command(&write_cmd); 2256c2cdf5c5SKevin Wolf qemuio_add_command(&writev_cmd); 2257c2cdf5c5SKevin Wolf qemuio_add_command(&multiwrite_cmd); 2258c2cdf5c5SKevin Wolf qemuio_add_command(&aio_read_cmd); 2259c2cdf5c5SKevin Wolf qemuio_add_command(&aio_write_cmd); 2260c2cdf5c5SKevin Wolf qemuio_add_command(&aio_flush_cmd); 2261c2cdf5c5SKevin Wolf qemuio_add_command(&flush_cmd); 2262c2cdf5c5SKevin Wolf qemuio_add_command(&truncate_cmd); 2263c2cdf5c5SKevin Wolf qemuio_add_command(&length_cmd); 2264c2cdf5c5SKevin Wolf qemuio_add_command(&info_cmd); 2265c2cdf5c5SKevin Wolf qemuio_add_command(&discard_cmd); 2266c2cdf5c5SKevin Wolf qemuio_add_command(&alloc_cmd); 2267c2cdf5c5SKevin Wolf qemuio_add_command(&map_cmd); 2268c2cdf5c5SKevin Wolf qemuio_add_command(&break_cmd); 22694cc70e93SFam Zheng qemuio_add_command(&remove_break_cmd); 2270c2cdf5c5SKevin Wolf qemuio_add_command(&resume_cmd); 2271c2cdf5c5SKevin Wolf qemuio_add_command(&wait_break_cmd); 2272c2cdf5c5SKevin Wolf qemuio_add_command(&abort_cmd); 2273cd33d02aSKevin Wolf qemuio_add_command(&sleep_cmd); 22740e82dc7bSMax Reitz qemuio_add_command(&sigraise_cmd); 2275797ac58cSKevin Wolf } 2276