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 1180c71a24SPeter Maydell #include "qemu/osdep.h" 12*da34e65cSMarkus Armbruster #include "qapi/error.h" 133d21994fSKevin Wolf #include "qemu-io.h" 144c7b7e9bSMax Reitz #include "sysemu/block-backend.h" 154c7b7e9bSMax Reitz #include "block/block.h" 164c7b7e9bSMax Reitz #include "block/block_int.h" /* for info_f() */ 17a8d8ecb7SMax Reitz #include "block/qapi.h" 18d49b6836SMarkus Armbruster #include "qemu/error-report.h" 196a1751b7SAlex Bligh #include "qemu/main-loop.h" 20cd33d02aSKevin Wolf #include "qemu/timer.h" 21a91f9584SFam Zheng #include "sysemu/block-backend.h" 22797ac58cSKevin Wolf 23797ac58cSKevin Wolf #define CMD_NOFILE_OK 0x01 24797ac58cSKevin Wolf 25f9883880SStefan Weil bool qemuio_misalign; 26797ac58cSKevin Wolf 27c2cdf5c5SKevin Wolf static cmdinfo_t *cmdtab; 28c2cdf5c5SKevin Wolf static int ncmds; 29c2cdf5c5SKevin Wolf 30c2cdf5c5SKevin Wolf static int compare_cmdname(const void *a, const void *b) 31c2cdf5c5SKevin Wolf { 32c2cdf5c5SKevin Wolf return strcmp(((const cmdinfo_t *)a)->name, 33c2cdf5c5SKevin Wolf ((const cmdinfo_t *)b)->name); 34c2cdf5c5SKevin Wolf } 35c2cdf5c5SKevin Wolf 36c2cdf5c5SKevin Wolf void qemuio_add_command(const cmdinfo_t *ci) 37c2cdf5c5SKevin Wolf { 3802c4f26bSMarkus Armbruster cmdtab = g_renew(cmdinfo_t, cmdtab, ++ncmds); 39c2cdf5c5SKevin Wolf cmdtab[ncmds - 1] = *ci; 40c2cdf5c5SKevin Wolf qsort(cmdtab, ncmds, sizeof(*cmdtab), compare_cmdname); 41c2cdf5c5SKevin Wolf } 42c2cdf5c5SKevin Wolf 43c2cdf5c5SKevin Wolf int qemuio_command_usage(const cmdinfo_t *ci) 44c2cdf5c5SKevin Wolf { 45c2cdf5c5SKevin Wolf printf("%s %s -- %s\n", ci->name, ci->args, ci->oneline); 46c2cdf5c5SKevin Wolf return 0; 47c2cdf5c5SKevin Wolf } 48c2cdf5c5SKevin Wolf 494c7b7e9bSMax Reitz static int init_check_command(BlockBackend *blk, const cmdinfo_t *ct) 50c2cdf5c5SKevin Wolf { 51c2cdf5c5SKevin Wolf if (ct->flags & CMD_FLAG_GLOBAL) { 52c2cdf5c5SKevin Wolf return 1; 53c2cdf5c5SKevin Wolf } 544c7b7e9bSMax Reitz if (!(ct->flags & CMD_NOFILE_OK) && !blk) { 55c2cdf5c5SKevin Wolf fprintf(stderr, "no file open, try 'help open'\n"); 56c2cdf5c5SKevin Wolf return 0; 57c2cdf5c5SKevin Wolf } 58c2cdf5c5SKevin Wolf return 1; 59c2cdf5c5SKevin Wolf } 60c2cdf5c5SKevin Wolf 614c7b7e9bSMax Reitz static int command(BlockBackend *blk, const cmdinfo_t *ct, int argc, 623d21994fSKevin Wolf char **argv) 63c2cdf5c5SKevin Wolf { 64c2cdf5c5SKevin Wolf char *cmd = argv[0]; 65c2cdf5c5SKevin Wolf 664c7b7e9bSMax Reitz if (!init_check_command(blk, ct)) { 67c2cdf5c5SKevin Wolf return 0; 68c2cdf5c5SKevin Wolf } 69c2cdf5c5SKevin Wolf 70c2cdf5c5SKevin Wolf if (argc - 1 < ct->argmin || (ct->argmax != -1 && argc - 1 > ct->argmax)) { 71c2cdf5c5SKevin Wolf if (ct->argmax == -1) { 72c2cdf5c5SKevin Wolf fprintf(stderr, 73c2cdf5c5SKevin Wolf "bad argument count %d to %s, expected at least %d arguments\n", 74c2cdf5c5SKevin Wolf argc-1, cmd, ct->argmin); 75c2cdf5c5SKevin Wolf } else if (ct->argmin == ct->argmax) { 76c2cdf5c5SKevin Wolf fprintf(stderr, 77c2cdf5c5SKevin Wolf "bad argument count %d to %s, expected %d arguments\n", 78c2cdf5c5SKevin Wolf argc-1, cmd, ct->argmin); 79c2cdf5c5SKevin Wolf } else { 80c2cdf5c5SKevin Wolf fprintf(stderr, 81c2cdf5c5SKevin Wolf "bad argument count %d to %s, expected between %d and %d arguments\n", 82c2cdf5c5SKevin Wolf argc-1, cmd, ct->argmin, ct->argmax); 83c2cdf5c5SKevin Wolf } 84c2cdf5c5SKevin Wolf return 0; 85c2cdf5c5SKevin Wolf } 86c2cdf5c5SKevin Wolf optind = 0; 874c7b7e9bSMax Reitz return ct->cfunc(blk, argc, argv); 88c2cdf5c5SKevin Wolf } 89c2cdf5c5SKevin Wolf 90c2cdf5c5SKevin Wolf static const cmdinfo_t *find_command(const char *cmd) 91c2cdf5c5SKevin Wolf { 92c2cdf5c5SKevin Wolf cmdinfo_t *ct; 93c2cdf5c5SKevin Wolf 94c2cdf5c5SKevin Wolf for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { 95c2cdf5c5SKevin Wolf if (strcmp(ct->name, cmd) == 0 || 96c2cdf5c5SKevin Wolf (ct->altname && strcmp(ct->altname, cmd) == 0)) 97c2cdf5c5SKevin Wolf { 98c2cdf5c5SKevin Wolf return (const cmdinfo_t *)ct; 99c2cdf5c5SKevin Wolf } 100c2cdf5c5SKevin Wolf } 101c2cdf5c5SKevin Wolf return NULL; 102c2cdf5c5SKevin Wolf } 103c2cdf5c5SKevin Wolf 1044694020dSStefan Hajnoczi /* Invoke fn() for commands with a matching prefix */ 1054694020dSStefan Hajnoczi void qemuio_complete_command(const char *input, 1064694020dSStefan Hajnoczi void (*fn)(const char *cmd, void *opaque), 1074694020dSStefan Hajnoczi void *opaque) 1084694020dSStefan Hajnoczi { 1094694020dSStefan Hajnoczi cmdinfo_t *ct; 1104694020dSStefan Hajnoczi size_t input_len = strlen(input); 1114694020dSStefan Hajnoczi 1124694020dSStefan Hajnoczi for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { 1134694020dSStefan Hajnoczi if (strncmp(input, ct->name, input_len) == 0) { 1144694020dSStefan Hajnoczi fn(ct->name, opaque); 1154694020dSStefan Hajnoczi } 1164694020dSStefan Hajnoczi } 1174694020dSStefan Hajnoczi } 1184694020dSStefan Hajnoczi 119c2cdf5c5SKevin Wolf static char **breakline(char *input, int *count) 120c2cdf5c5SKevin Wolf { 121c2cdf5c5SKevin Wolf int c = 0; 122c2cdf5c5SKevin Wolf char *p; 1235839e53bSMarkus Armbruster char **rval = g_new0(char *, 1); 124c2cdf5c5SKevin Wolf 125c2cdf5c5SKevin Wolf while (rval && (p = qemu_strsep(&input, " ")) != NULL) { 126c2cdf5c5SKevin Wolf if (!*p) { 127c2cdf5c5SKevin Wolf continue; 128c2cdf5c5SKevin Wolf } 129c2cdf5c5SKevin Wolf c++; 13008193dd5SMarkus Armbruster rval = g_renew(char *, rval, (c + 1)); 131c2cdf5c5SKevin Wolf rval[c - 1] = p; 132c2cdf5c5SKevin Wolf rval[c] = NULL; 133c2cdf5c5SKevin Wolf } 134c2cdf5c5SKevin Wolf *count = c; 135c2cdf5c5SKevin Wolf return rval; 136c2cdf5c5SKevin Wolf } 137c2cdf5c5SKevin Wolf 138797ac58cSKevin Wolf static int64_t cvtnum(const char *s) 139797ac58cSKevin Wolf { 140797ac58cSKevin Wolf char *end; 141ef5a7885SJohn Snow int64_t ret; 142ef5a7885SJohn Snow 143ef5a7885SJohn Snow ret = qemu_strtosz_suffix(s, &end, QEMU_STRTOSZ_DEFSUFFIX_B); 144ef5a7885SJohn Snow if (*end != '\0') { 145ef5a7885SJohn Snow /* Detritus at the end of the string */ 146ef5a7885SJohn Snow return -EINVAL; 147ef5a7885SJohn Snow } 148ef5a7885SJohn Snow return ret; 149797ac58cSKevin Wolf } 150797ac58cSKevin Wolf 151a9ecfa00SJohn Snow static void print_cvtnum_err(int64_t rc, const char *arg) 152a9ecfa00SJohn Snow { 153a9ecfa00SJohn Snow switch (rc) { 154a9ecfa00SJohn Snow case -EINVAL: 155a9ecfa00SJohn Snow printf("Parsing error: non-numeric argument," 156a9ecfa00SJohn Snow " or extraneous/unrecognized suffix -- %s\n", arg); 157a9ecfa00SJohn Snow break; 158a9ecfa00SJohn Snow case -ERANGE: 159a9ecfa00SJohn Snow printf("Parsing error: argument too large -- %s\n", arg); 160a9ecfa00SJohn Snow break; 161a9ecfa00SJohn Snow default: 162a9ecfa00SJohn Snow printf("Parsing error: %s\n", arg); 163a9ecfa00SJohn Snow } 164a9ecfa00SJohn Snow } 165a9ecfa00SJohn Snow 1660b613881SKevin Wolf #define EXABYTES(x) ((long long)(x) << 60) 1670b613881SKevin Wolf #define PETABYTES(x) ((long long)(x) << 50) 1680b613881SKevin Wolf #define TERABYTES(x) ((long long)(x) << 40) 1690b613881SKevin Wolf #define GIGABYTES(x) ((long long)(x) << 30) 1700b613881SKevin Wolf #define MEGABYTES(x) ((long long)(x) << 20) 1710b613881SKevin Wolf #define KILOBYTES(x) ((long long)(x) << 10) 1720b613881SKevin Wolf 1730b613881SKevin Wolf #define TO_EXABYTES(x) ((x) / EXABYTES(1)) 1740b613881SKevin Wolf #define TO_PETABYTES(x) ((x) / PETABYTES(1)) 1750b613881SKevin Wolf #define TO_TERABYTES(x) ((x) / TERABYTES(1)) 1760b613881SKevin Wolf #define TO_GIGABYTES(x) ((x) / GIGABYTES(1)) 1770b613881SKevin Wolf #define TO_MEGABYTES(x) ((x) / MEGABYTES(1)) 1780b613881SKevin Wolf #define TO_KILOBYTES(x) ((x) / KILOBYTES(1)) 1790b613881SKevin Wolf 1800b613881SKevin Wolf static void cvtstr(double value, char *str, size_t size) 1810b613881SKevin Wolf { 1820b613881SKevin Wolf char *trim; 1830b613881SKevin Wolf const char *suffix; 1840b613881SKevin Wolf 1850b613881SKevin Wolf if (value >= EXABYTES(1)) { 1860b613881SKevin Wolf suffix = " EiB"; 1870b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_EXABYTES(value)); 1880b613881SKevin Wolf } else if (value >= PETABYTES(1)) { 1890b613881SKevin Wolf suffix = " PiB"; 1900b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_PETABYTES(value)); 1910b613881SKevin Wolf } else if (value >= TERABYTES(1)) { 1920b613881SKevin Wolf suffix = " TiB"; 1930b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_TERABYTES(value)); 1940b613881SKevin Wolf } else if (value >= GIGABYTES(1)) { 1950b613881SKevin Wolf suffix = " GiB"; 1960b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_GIGABYTES(value)); 1970b613881SKevin Wolf } else if (value >= MEGABYTES(1)) { 1980b613881SKevin Wolf suffix = " MiB"; 1990b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_MEGABYTES(value)); 2000b613881SKevin Wolf } else if (value >= KILOBYTES(1)) { 2010b613881SKevin Wolf suffix = " KiB"; 2020b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_KILOBYTES(value)); 2030b613881SKevin Wolf } else { 2040b613881SKevin Wolf suffix = " bytes"; 2050b613881SKevin Wolf snprintf(str, size - 6, "%f", value); 2060b613881SKevin Wolf } 2070b613881SKevin Wolf 2080b613881SKevin Wolf trim = strstr(str, ".000"); 2090b613881SKevin Wolf if (trim) { 2100b613881SKevin Wolf strcpy(trim, suffix); 2110b613881SKevin Wolf } else { 2120b613881SKevin Wolf strcat(str, suffix); 2130b613881SKevin Wolf } 2140b613881SKevin Wolf } 2150b613881SKevin Wolf 2160b613881SKevin Wolf 2170b613881SKevin Wolf 2180b613881SKevin Wolf static struct timeval tsub(struct timeval t1, struct timeval t2) 2190b613881SKevin Wolf { 2200b613881SKevin Wolf t1.tv_usec -= t2.tv_usec; 2210b613881SKevin Wolf if (t1.tv_usec < 0) { 2220b613881SKevin Wolf t1.tv_usec += 1000000; 2230b613881SKevin Wolf t1.tv_sec--; 2240b613881SKevin Wolf } 2250b613881SKevin Wolf t1.tv_sec -= t2.tv_sec; 2260b613881SKevin Wolf return t1; 2270b613881SKevin Wolf } 2280b613881SKevin Wolf 2290b613881SKevin Wolf static double tdiv(double value, struct timeval tv) 2300b613881SKevin Wolf { 2310b613881SKevin Wolf return value / ((double)tv.tv_sec + ((double)tv.tv_usec / 1000000.0)); 2320b613881SKevin Wolf } 2330b613881SKevin Wolf 2340b613881SKevin Wolf #define HOURS(sec) ((sec) / (60 * 60)) 2350b613881SKevin Wolf #define MINUTES(sec) (((sec) % (60 * 60)) / 60) 2360b613881SKevin Wolf #define SECONDS(sec) ((sec) % 60) 2370b613881SKevin Wolf 2380b613881SKevin Wolf enum { 2390b613881SKevin Wolf DEFAULT_TIME = 0x0, 2400b613881SKevin Wolf TERSE_FIXED_TIME = 0x1, 2410b613881SKevin Wolf VERBOSE_FIXED_TIME = 0x2, 2420b613881SKevin Wolf }; 2430b613881SKevin Wolf 2440b613881SKevin Wolf static void timestr(struct timeval *tv, char *ts, size_t size, int format) 2450b613881SKevin Wolf { 2460b613881SKevin Wolf double usec = (double)tv->tv_usec / 1000000.0; 2470b613881SKevin Wolf 2480b613881SKevin Wolf if (format & TERSE_FIXED_TIME) { 2490b613881SKevin Wolf if (!HOURS(tv->tv_sec)) { 2500b613881SKevin Wolf snprintf(ts, size, "%u:%02u.%02u", 2510b613881SKevin Wolf (unsigned int) MINUTES(tv->tv_sec), 2520b613881SKevin Wolf (unsigned int) SECONDS(tv->tv_sec), 2530b613881SKevin Wolf (unsigned int) (usec * 100)); 2540b613881SKevin Wolf return; 2550b613881SKevin Wolf } 2560b613881SKevin Wolf format |= VERBOSE_FIXED_TIME; /* fallback if hours needed */ 2570b613881SKevin Wolf } 2580b613881SKevin Wolf 2590b613881SKevin Wolf if ((format & VERBOSE_FIXED_TIME) || tv->tv_sec) { 2600b613881SKevin Wolf snprintf(ts, size, "%u:%02u:%02u.%02u", 2610b613881SKevin Wolf (unsigned int) HOURS(tv->tv_sec), 2620b613881SKevin Wolf (unsigned int) MINUTES(tv->tv_sec), 2630b613881SKevin Wolf (unsigned int) SECONDS(tv->tv_sec), 2640b613881SKevin Wolf (unsigned int) (usec * 100)); 2650b613881SKevin Wolf } else { 2660b613881SKevin Wolf snprintf(ts, size, "0.%04u sec", (unsigned int) (usec * 10000)); 2670b613881SKevin Wolf } 2680b613881SKevin Wolf } 2690b613881SKevin Wolf 270797ac58cSKevin Wolf /* 271797ac58cSKevin Wolf * Parse the pattern argument to various sub-commands. 272797ac58cSKevin Wolf * 273797ac58cSKevin Wolf * Because the pattern is used as an argument to memset it must evaluate 274797ac58cSKevin Wolf * to an unsigned integer that fits into a single byte. 275797ac58cSKevin Wolf */ 276797ac58cSKevin Wolf static int parse_pattern(const char *arg) 277797ac58cSKevin Wolf { 278797ac58cSKevin Wolf char *endptr = NULL; 279797ac58cSKevin Wolf long pattern; 280797ac58cSKevin Wolf 281797ac58cSKevin Wolf pattern = strtol(arg, &endptr, 0); 282797ac58cSKevin Wolf if (pattern < 0 || pattern > UCHAR_MAX || *endptr != '\0') { 283797ac58cSKevin Wolf printf("%s is not a valid pattern byte\n", arg); 284797ac58cSKevin Wolf return -1; 285797ac58cSKevin Wolf } 286797ac58cSKevin Wolf 287797ac58cSKevin Wolf return pattern; 288797ac58cSKevin Wolf } 289797ac58cSKevin Wolf 290797ac58cSKevin Wolf /* 291797ac58cSKevin Wolf * Memory allocation helpers. 292797ac58cSKevin Wolf * 293797ac58cSKevin Wolf * Make sure memory is aligned by default, or purposefully misaligned if 294797ac58cSKevin Wolf * that is specified on the command line. 295797ac58cSKevin Wolf */ 296797ac58cSKevin Wolf 297797ac58cSKevin Wolf #define MISALIGN_OFFSET 16 2984c7b7e9bSMax Reitz static void *qemu_io_alloc(BlockBackend *blk, size_t len, int pattern) 299797ac58cSKevin Wolf { 300797ac58cSKevin Wolf void *buf; 301797ac58cSKevin Wolf 302797ac58cSKevin Wolf if (qemuio_misalign) { 303797ac58cSKevin Wolf len += MISALIGN_OFFSET; 304797ac58cSKevin Wolf } 3054c7b7e9bSMax Reitz buf = blk_blockalign(blk, len); 306797ac58cSKevin Wolf memset(buf, pattern, len); 307797ac58cSKevin Wolf if (qemuio_misalign) { 308797ac58cSKevin Wolf buf += MISALIGN_OFFSET; 309797ac58cSKevin Wolf } 310797ac58cSKevin Wolf return buf; 311797ac58cSKevin Wolf } 312797ac58cSKevin Wolf 313797ac58cSKevin Wolf static void qemu_io_free(void *p) 314797ac58cSKevin Wolf { 315797ac58cSKevin Wolf if (qemuio_misalign) { 316797ac58cSKevin Wolf p -= MISALIGN_OFFSET; 317797ac58cSKevin Wolf } 318797ac58cSKevin Wolf qemu_vfree(p); 319797ac58cSKevin Wolf } 320797ac58cSKevin Wolf 3219b0beaf3SJohn Snow static void dump_buffer(const void *buffer, int64_t offset, int64_t len) 322797ac58cSKevin Wolf { 3239b0beaf3SJohn Snow uint64_t i; 3249b0beaf3SJohn Snow int j; 325797ac58cSKevin Wolf const uint8_t *p; 326797ac58cSKevin Wolf 327797ac58cSKevin Wolf for (i = 0, p = buffer; i < len; i += 16) { 328797ac58cSKevin Wolf const uint8_t *s = p; 329797ac58cSKevin Wolf 330797ac58cSKevin Wolf printf("%08" PRIx64 ": ", offset + i); 331797ac58cSKevin Wolf for (j = 0; j < 16 && i + j < len; j++, p++) { 332797ac58cSKevin Wolf printf("%02x ", *p); 333797ac58cSKevin Wolf } 334797ac58cSKevin Wolf printf(" "); 335797ac58cSKevin Wolf for (j = 0; j < 16 && i + j < len; j++, s++) { 336797ac58cSKevin Wolf if (isalnum(*s)) { 337797ac58cSKevin Wolf printf("%c", *s); 338797ac58cSKevin Wolf } else { 339797ac58cSKevin Wolf printf("."); 340797ac58cSKevin Wolf } 341797ac58cSKevin Wolf } 342797ac58cSKevin Wolf printf("\n"); 343797ac58cSKevin Wolf } 344797ac58cSKevin Wolf } 345797ac58cSKevin Wolf 346797ac58cSKevin Wolf static void print_report(const char *op, struct timeval *t, int64_t offset, 3479b0beaf3SJohn Snow int64_t count, int64_t total, int cnt, int Cflag) 348797ac58cSKevin Wolf { 349797ac58cSKevin Wolf char s1[64], s2[64], ts[64]; 350797ac58cSKevin Wolf 351797ac58cSKevin Wolf timestr(t, ts, sizeof(ts), Cflag ? VERBOSE_FIXED_TIME : 0); 352797ac58cSKevin Wolf if (!Cflag) { 353797ac58cSKevin Wolf cvtstr((double)total, s1, sizeof(s1)); 354797ac58cSKevin Wolf cvtstr(tdiv((double)total, *t), s2, sizeof(s2)); 3559b0beaf3SJohn Snow printf("%s %"PRId64"/%"PRId64" bytes at offset %" PRId64 "\n", 356797ac58cSKevin Wolf op, total, count, offset); 357797ac58cSKevin Wolf printf("%s, %d ops; %s (%s/sec and %.4f ops/sec)\n", 358797ac58cSKevin Wolf s1, cnt, ts, s2, tdiv((double)cnt, *t)); 359797ac58cSKevin Wolf } else {/* bytes,ops,time,bytes/sec,ops/sec */ 3609b0beaf3SJohn Snow printf("%"PRId64",%d,%s,%.3f,%.3f\n", 361797ac58cSKevin Wolf total, cnt, ts, 362797ac58cSKevin Wolf tdiv((double)total, *t), 363797ac58cSKevin Wolf tdiv((double)cnt, *t)); 364797ac58cSKevin Wolf } 365797ac58cSKevin Wolf } 366797ac58cSKevin Wolf 367797ac58cSKevin Wolf /* 368797ac58cSKevin Wolf * Parse multiple length statements for vectored I/O, and construct an I/O 369797ac58cSKevin Wolf * vector matching it. 370797ac58cSKevin Wolf */ 371797ac58cSKevin Wolf static void * 3724c7b7e9bSMax Reitz create_iovec(BlockBackend *blk, QEMUIOVector *qiov, char **argv, int nr_iov, 373797ac58cSKevin Wolf int pattern) 374797ac58cSKevin Wolf { 375797ac58cSKevin Wolf size_t *sizes = g_new0(size_t, nr_iov); 376797ac58cSKevin Wolf size_t count = 0; 377797ac58cSKevin Wolf void *buf = NULL; 378797ac58cSKevin Wolf void *p; 379797ac58cSKevin Wolf int i; 380797ac58cSKevin Wolf 381797ac58cSKevin Wolf for (i = 0; i < nr_iov; i++) { 382797ac58cSKevin Wolf char *arg = argv[i]; 383797ac58cSKevin Wolf int64_t len; 384797ac58cSKevin Wolf 385797ac58cSKevin Wolf len = cvtnum(arg); 386797ac58cSKevin Wolf if (len < 0) { 387a9ecfa00SJohn Snow print_cvtnum_err(len, arg); 388797ac58cSKevin Wolf goto fail; 389797ac58cSKevin Wolf } 390797ac58cSKevin Wolf 391797ac58cSKevin Wolf /* should be SIZE_T_MAX, but that doesn't exist */ 392797ac58cSKevin Wolf if (len > INT_MAX) { 393a9ecfa00SJohn Snow printf("Argument '%s' exceeds maximum size %d\n", arg, INT_MAX); 394797ac58cSKevin Wolf goto fail; 395797ac58cSKevin Wolf } 396797ac58cSKevin Wolf 397797ac58cSKevin Wolf if (len & 0x1ff) { 398797ac58cSKevin Wolf printf("length argument %" PRId64 399797ac58cSKevin Wolf " is not sector aligned\n", len); 400797ac58cSKevin Wolf goto fail; 401797ac58cSKevin Wolf } 402797ac58cSKevin Wolf 403797ac58cSKevin Wolf sizes[i] = len; 404797ac58cSKevin Wolf count += len; 405797ac58cSKevin Wolf } 406797ac58cSKevin Wolf 407797ac58cSKevin Wolf qemu_iovec_init(qiov, nr_iov); 408797ac58cSKevin Wolf 4094c7b7e9bSMax Reitz buf = p = qemu_io_alloc(blk, count, pattern); 410797ac58cSKevin Wolf 411797ac58cSKevin Wolf for (i = 0; i < nr_iov; i++) { 412797ac58cSKevin Wolf qemu_iovec_add(qiov, p, sizes[i]); 413797ac58cSKevin Wolf p += sizes[i]; 414797ac58cSKevin Wolf } 415797ac58cSKevin Wolf 416797ac58cSKevin Wolf fail: 417797ac58cSKevin Wolf g_free(sizes); 418797ac58cSKevin Wolf return buf; 419797ac58cSKevin Wolf } 420797ac58cSKevin Wolf 4219b0beaf3SJohn Snow static int do_read(BlockBackend *blk, char *buf, int64_t offset, int64_t count, 4229b0beaf3SJohn Snow int64_t *total) 423797ac58cSKevin Wolf { 424797ac58cSKevin Wolf int ret; 425797ac58cSKevin Wolf 4269b0beaf3SJohn Snow if (count >> 9 > INT_MAX) { 4279b0beaf3SJohn Snow return -ERANGE; 4289b0beaf3SJohn Snow } 4299b0beaf3SJohn Snow 4304c7b7e9bSMax Reitz ret = blk_read(blk, offset >> 9, (uint8_t *)buf, count >> 9); 431797ac58cSKevin Wolf if (ret < 0) { 432797ac58cSKevin Wolf return ret; 433797ac58cSKevin Wolf } 434797ac58cSKevin Wolf *total = count; 435797ac58cSKevin Wolf return 1; 436797ac58cSKevin Wolf } 437797ac58cSKevin Wolf 4389b0beaf3SJohn Snow static int do_write(BlockBackend *blk, char *buf, int64_t offset, int64_t count, 4399b0beaf3SJohn Snow int64_t *total) 440797ac58cSKevin Wolf { 441797ac58cSKevin Wolf int ret; 442797ac58cSKevin Wolf 4439b0beaf3SJohn Snow if (count >> 9 > INT_MAX) { 4449b0beaf3SJohn Snow return -ERANGE; 4459b0beaf3SJohn Snow } 4469b0beaf3SJohn Snow 4474c7b7e9bSMax Reitz ret = blk_write(blk, offset >> 9, (uint8_t *)buf, count >> 9); 448797ac58cSKevin Wolf if (ret < 0) { 449797ac58cSKevin Wolf return ret; 450797ac58cSKevin Wolf } 451797ac58cSKevin Wolf *total = count; 452797ac58cSKevin Wolf return 1; 453797ac58cSKevin Wolf } 454797ac58cSKevin Wolf 4559b0beaf3SJohn Snow static int do_pread(BlockBackend *blk, char *buf, int64_t offset, 4569b0beaf3SJohn Snow int64_t count, int64_t *total) 457797ac58cSKevin Wolf { 4589b0beaf3SJohn Snow if (count > INT_MAX) { 4599b0beaf3SJohn Snow return -ERANGE; 4609b0beaf3SJohn Snow } 4619b0beaf3SJohn Snow 4624c7b7e9bSMax Reitz *total = blk_pread(blk, offset, (uint8_t *)buf, count); 463797ac58cSKevin Wolf if (*total < 0) { 464797ac58cSKevin Wolf return *total; 465797ac58cSKevin Wolf } 466797ac58cSKevin Wolf return 1; 467797ac58cSKevin Wolf } 468797ac58cSKevin Wolf 4699b0beaf3SJohn Snow static int do_pwrite(BlockBackend *blk, char *buf, int64_t offset, 4709b0beaf3SJohn Snow int64_t count, int64_t *total) 471797ac58cSKevin Wolf { 4729b0beaf3SJohn Snow if (count > INT_MAX) { 4739b0beaf3SJohn Snow return -ERANGE; 4749b0beaf3SJohn Snow } 4759b0beaf3SJohn Snow 4764c7b7e9bSMax Reitz *total = blk_pwrite(blk, offset, (uint8_t *)buf, count); 477797ac58cSKevin Wolf if (*total < 0) { 478797ac58cSKevin Wolf return *total; 479797ac58cSKevin Wolf } 480797ac58cSKevin Wolf return 1; 481797ac58cSKevin Wolf } 482797ac58cSKevin Wolf 483797ac58cSKevin Wolf typedef struct { 4844c7b7e9bSMax Reitz BlockBackend *blk; 485797ac58cSKevin Wolf int64_t offset; 4869b0beaf3SJohn Snow int64_t count; 4879b0beaf3SJohn Snow int64_t *total; 488797ac58cSKevin Wolf int ret; 489797ac58cSKevin Wolf bool done; 490797ac58cSKevin Wolf } CoWriteZeroes; 491797ac58cSKevin Wolf 492797ac58cSKevin Wolf static void coroutine_fn co_write_zeroes_entry(void *opaque) 493797ac58cSKevin Wolf { 494797ac58cSKevin Wolf CoWriteZeroes *data = opaque; 495797ac58cSKevin Wolf 4964c7b7e9bSMax Reitz data->ret = blk_co_write_zeroes(data->blk, data->offset / BDRV_SECTOR_SIZE, 497aa7bfbffSPeter Lieven data->count / BDRV_SECTOR_SIZE, 0); 498797ac58cSKevin Wolf data->done = true; 499797ac58cSKevin Wolf if (data->ret < 0) { 500797ac58cSKevin Wolf *data->total = data->ret; 501797ac58cSKevin Wolf return; 502797ac58cSKevin Wolf } 503797ac58cSKevin Wolf 504797ac58cSKevin Wolf *data->total = data->count; 505797ac58cSKevin Wolf } 506797ac58cSKevin Wolf 5079b0beaf3SJohn Snow static int do_co_write_zeroes(BlockBackend *blk, int64_t offset, int64_t count, 5089b0beaf3SJohn Snow int64_t *total) 509797ac58cSKevin Wolf { 510797ac58cSKevin Wolf Coroutine *co; 511797ac58cSKevin Wolf CoWriteZeroes data = { 5124c7b7e9bSMax Reitz .blk = blk, 513797ac58cSKevin Wolf .offset = offset, 514797ac58cSKevin Wolf .count = count, 515797ac58cSKevin Wolf .total = total, 516797ac58cSKevin Wolf .done = false, 517797ac58cSKevin Wolf }; 518797ac58cSKevin Wolf 5199b0beaf3SJohn Snow if (count >> BDRV_SECTOR_BITS > INT_MAX) { 5209b0beaf3SJohn Snow return -ERANGE; 5219b0beaf3SJohn Snow } 5229b0beaf3SJohn Snow 523797ac58cSKevin Wolf co = qemu_coroutine_create(co_write_zeroes_entry); 524797ac58cSKevin Wolf qemu_coroutine_enter(co, &data); 525797ac58cSKevin Wolf while (!data.done) { 5264c7b7e9bSMax Reitz aio_poll(blk_get_aio_context(blk), true); 527797ac58cSKevin Wolf } 528797ac58cSKevin Wolf if (data.ret < 0) { 529797ac58cSKevin Wolf return data.ret; 530797ac58cSKevin Wolf } else { 531797ac58cSKevin Wolf return 1; 532797ac58cSKevin Wolf } 533797ac58cSKevin Wolf } 534797ac58cSKevin Wolf 5354c7b7e9bSMax Reitz static int do_write_compressed(BlockBackend *blk, char *buf, int64_t offset, 5369b0beaf3SJohn Snow int64_t count, int64_t *total) 537797ac58cSKevin Wolf { 538797ac58cSKevin Wolf int ret; 539797ac58cSKevin Wolf 5409b0beaf3SJohn Snow if (count >> 9 > INT_MAX) { 5419b0beaf3SJohn Snow return -ERANGE; 5429b0beaf3SJohn Snow } 5439b0beaf3SJohn Snow 5444c7b7e9bSMax Reitz ret = blk_write_compressed(blk, offset >> 9, (uint8_t *)buf, count >> 9); 545797ac58cSKevin Wolf if (ret < 0) { 546797ac58cSKevin Wolf return ret; 547797ac58cSKevin Wolf } 548797ac58cSKevin Wolf *total = count; 549797ac58cSKevin Wolf return 1; 550797ac58cSKevin Wolf } 551797ac58cSKevin Wolf 5524c7b7e9bSMax Reitz static int do_load_vmstate(BlockBackend *blk, char *buf, int64_t offset, 5539b0beaf3SJohn Snow int64_t count, int64_t *total) 554797ac58cSKevin Wolf { 5559b0beaf3SJohn Snow if (count > INT_MAX) { 5569b0beaf3SJohn Snow return -ERANGE; 5579b0beaf3SJohn Snow } 5589b0beaf3SJohn Snow 5594c7b7e9bSMax Reitz *total = blk_load_vmstate(blk, (uint8_t *)buf, offset, count); 560797ac58cSKevin Wolf if (*total < 0) { 561797ac58cSKevin Wolf return *total; 562797ac58cSKevin Wolf } 563797ac58cSKevin Wolf return 1; 564797ac58cSKevin Wolf } 565797ac58cSKevin Wolf 5664c7b7e9bSMax Reitz static int do_save_vmstate(BlockBackend *blk, char *buf, int64_t offset, 5679b0beaf3SJohn Snow int64_t count, int64_t *total) 568797ac58cSKevin Wolf { 5699b0beaf3SJohn Snow if (count > INT_MAX) { 5709b0beaf3SJohn Snow return -ERANGE; 5719b0beaf3SJohn Snow } 5729b0beaf3SJohn Snow 5734c7b7e9bSMax Reitz *total = blk_save_vmstate(blk, (uint8_t *)buf, offset, count); 574797ac58cSKevin Wolf if (*total < 0) { 575797ac58cSKevin Wolf return *total; 576797ac58cSKevin Wolf } 577797ac58cSKevin Wolf return 1; 578797ac58cSKevin Wolf } 579797ac58cSKevin Wolf 580797ac58cSKevin Wolf #define NOT_DONE 0x7fffffff 581797ac58cSKevin Wolf static void aio_rw_done(void *opaque, int ret) 582797ac58cSKevin Wolf { 583797ac58cSKevin Wolf *(int *)opaque = ret; 584797ac58cSKevin Wolf } 585797ac58cSKevin Wolf 5864c7b7e9bSMax Reitz static int do_aio_readv(BlockBackend *blk, QEMUIOVector *qiov, 587797ac58cSKevin Wolf int64_t offset, int *total) 588797ac58cSKevin Wolf { 589797ac58cSKevin Wolf int async_ret = NOT_DONE; 590797ac58cSKevin Wolf 5914c7b7e9bSMax Reitz blk_aio_readv(blk, offset >> 9, qiov, qiov->size >> 9, 592797ac58cSKevin Wolf aio_rw_done, &async_ret); 593797ac58cSKevin Wolf while (async_ret == NOT_DONE) { 594797ac58cSKevin Wolf main_loop_wait(false); 595797ac58cSKevin Wolf } 596797ac58cSKevin Wolf 597797ac58cSKevin Wolf *total = qiov->size; 598797ac58cSKevin Wolf return async_ret < 0 ? async_ret : 1; 599797ac58cSKevin Wolf } 600797ac58cSKevin Wolf 6014c7b7e9bSMax Reitz static int do_aio_writev(BlockBackend *blk, QEMUIOVector *qiov, 602797ac58cSKevin Wolf int64_t offset, int *total) 603797ac58cSKevin Wolf { 604797ac58cSKevin Wolf int async_ret = NOT_DONE; 605797ac58cSKevin Wolf 6064c7b7e9bSMax Reitz blk_aio_writev(blk, offset >> 9, qiov, qiov->size >> 9, 607797ac58cSKevin Wolf aio_rw_done, &async_ret); 608797ac58cSKevin Wolf while (async_ret == NOT_DONE) { 609797ac58cSKevin Wolf main_loop_wait(false); 610797ac58cSKevin Wolf } 611797ac58cSKevin Wolf 612797ac58cSKevin Wolf *total = qiov->size; 613797ac58cSKevin Wolf return async_ret < 0 ? async_ret : 1; 614797ac58cSKevin Wolf } 615797ac58cSKevin Wolf 616797ac58cSKevin Wolf struct multiwrite_async_ret { 617797ac58cSKevin Wolf int num_done; 618797ac58cSKevin Wolf int error; 619797ac58cSKevin Wolf }; 620797ac58cSKevin Wolf 621797ac58cSKevin Wolf static void multiwrite_cb(void *opaque, int ret) 622797ac58cSKevin Wolf { 623797ac58cSKevin Wolf struct multiwrite_async_ret *async_ret = opaque; 624797ac58cSKevin Wolf 625797ac58cSKevin Wolf async_ret->num_done++; 626797ac58cSKevin Wolf if (ret < 0) { 627797ac58cSKevin Wolf async_ret->error = ret; 628797ac58cSKevin Wolf } 629797ac58cSKevin Wolf } 630797ac58cSKevin Wolf 6314c7b7e9bSMax Reitz static int do_aio_multiwrite(BlockBackend *blk, BlockRequest* reqs, 632797ac58cSKevin Wolf int num_reqs, int *total) 633797ac58cSKevin Wolf { 634797ac58cSKevin Wolf int i, ret; 635797ac58cSKevin Wolf struct multiwrite_async_ret async_ret = { 636797ac58cSKevin Wolf .num_done = 0, 637797ac58cSKevin Wolf .error = 0, 638797ac58cSKevin Wolf }; 639797ac58cSKevin Wolf 640797ac58cSKevin Wolf *total = 0; 641797ac58cSKevin Wolf for (i = 0; i < num_reqs; i++) { 642797ac58cSKevin Wolf reqs[i].cb = multiwrite_cb; 643797ac58cSKevin Wolf reqs[i].opaque = &async_ret; 644797ac58cSKevin Wolf *total += reqs[i].qiov->size; 645797ac58cSKevin Wolf } 646797ac58cSKevin Wolf 6474c7b7e9bSMax Reitz ret = blk_aio_multiwrite(blk, reqs, num_reqs); 648797ac58cSKevin Wolf if (ret < 0) { 649797ac58cSKevin Wolf return ret; 650797ac58cSKevin Wolf } 651797ac58cSKevin Wolf 652797ac58cSKevin Wolf while (async_ret.num_done < num_reqs) { 653797ac58cSKevin Wolf main_loop_wait(false); 654797ac58cSKevin Wolf } 655797ac58cSKevin Wolf 656797ac58cSKevin Wolf return async_ret.error < 0 ? async_ret.error : 1; 657797ac58cSKevin Wolf } 658797ac58cSKevin Wolf 659797ac58cSKevin Wolf static void read_help(void) 660797ac58cSKevin Wolf { 661797ac58cSKevin Wolf printf( 662797ac58cSKevin Wolf "\n" 663797ac58cSKevin Wolf " reads a range of bytes from the given offset\n" 664797ac58cSKevin Wolf "\n" 665797ac58cSKevin Wolf " Example:\n" 666797ac58cSKevin Wolf " 'read -v 512 1k' - dumps 1 kilobyte read from 512 bytes into the file\n" 667797ac58cSKevin Wolf "\n" 668797ac58cSKevin Wolf " Reads a segment of the currently open file, optionally dumping it to the\n" 669797ac58cSKevin Wolf " standard output stream (with -v option) for subsequent inspection.\n" 670797ac58cSKevin Wolf " -b, -- read from the VM state rather than the virtual disk\n" 671797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 672797ac58cSKevin Wolf " -l, -- length for pattern verification (only with -P)\n" 6734c7b7e9bSMax Reitz " -p, -- use blk_pread to read the file\n" 674797ac58cSKevin Wolf " -P, -- use a pattern to verify read data\n" 675797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 676797ac58cSKevin Wolf " -s, -- start offset for pattern verification (only with -P)\n" 677797ac58cSKevin Wolf " -v, -- dump buffer to standard output\n" 678797ac58cSKevin Wolf "\n"); 679797ac58cSKevin Wolf } 680797ac58cSKevin Wolf 6814c7b7e9bSMax Reitz static int read_f(BlockBackend *blk, int argc, char **argv); 682797ac58cSKevin Wolf 683797ac58cSKevin Wolf static const cmdinfo_t read_cmd = { 684797ac58cSKevin Wolf .name = "read", 685797ac58cSKevin Wolf .altname = "r", 686797ac58cSKevin Wolf .cfunc = read_f, 687797ac58cSKevin Wolf .argmin = 2, 688797ac58cSKevin Wolf .argmax = -1, 689797ac58cSKevin Wolf .args = "[-abCpqv] [-P pattern [-s off] [-l len]] off len", 690797ac58cSKevin Wolf .oneline = "reads a number of bytes at a specified offset", 691797ac58cSKevin Wolf .help = read_help, 692797ac58cSKevin Wolf }; 693797ac58cSKevin Wolf 6944c7b7e9bSMax Reitz static int read_f(BlockBackend *blk, int argc, char **argv) 695797ac58cSKevin Wolf { 696797ac58cSKevin Wolf struct timeval t1, t2; 697797ac58cSKevin Wolf int Cflag = 0, pflag = 0, qflag = 0, vflag = 0; 698797ac58cSKevin Wolf int Pflag = 0, sflag = 0, lflag = 0, bflag = 0; 699797ac58cSKevin Wolf int c, cnt; 700797ac58cSKevin Wolf char *buf; 701797ac58cSKevin Wolf int64_t offset; 7029b0beaf3SJohn Snow int64_t count; 703797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 7049b0beaf3SJohn Snow int64_t total = 0; 7059b0beaf3SJohn Snow int pattern = 0; 7069b0beaf3SJohn Snow int64_t pattern_offset = 0, pattern_count = 0; 707797ac58cSKevin Wolf 708b062ad86SEric Blake while ((c = getopt(argc, argv, "bCl:pP:qs:v")) != -1) { 709797ac58cSKevin Wolf switch (c) { 710797ac58cSKevin Wolf case 'b': 711797ac58cSKevin Wolf bflag = 1; 712797ac58cSKevin Wolf break; 713797ac58cSKevin Wolf case 'C': 714797ac58cSKevin Wolf Cflag = 1; 715797ac58cSKevin Wolf break; 716797ac58cSKevin Wolf case 'l': 717797ac58cSKevin Wolf lflag = 1; 718797ac58cSKevin Wolf pattern_count = cvtnum(optarg); 719797ac58cSKevin Wolf if (pattern_count < 0) { 720a9ecfa00SJohn Snow print_cvtnum_err(pattern_count, optarg); 721797ac58cSKevin Wolf return 0; 722797ac58cSKevin Wolf } 723797ac58cSKevin Wolf break; 724797ac58cSKevin Wolf case 'p': 725797ac58cSKevin Wolf pflag = 1; 726797ac58cSKevin Wolf break; 727797ac58cSKevin Wolf case 'P': 728797ac58cSKevin Wolf Pflag = 1; 729797ac58cSKevin Wolf pattern = parse_pattern(optarg); 730797ac58cSKevin Wolf if (pattern < 0) { 731797ac58cSKevin Wolf return 0; 732797ac58cSKevin Wolf } 733797ac58cSKevin Wolf break; 734797ac58cSKevin Wolf case 'q': 735797ac58cSKevin Wolf qflag = 1; 736797ac58cSKevin Wolf break; 737797ac58cSKevin Wolf case 's': 738797ac58cSKevin Wolf sflag = 1; 739797ac58cSKevin Wolf pattern_offset = cvtnum(optarg); 740797ac58cSKevin Wolf if (pattern_offset < 0) { 741a9ecfa00SJohn Snow print_cvtnum_err(pattern_offset, optarg); 742797ac58cSKevin Wolf return 0; 743797ac58cSKevin Wolf } 744797ac58cSKevin Wolf break; 745797ac58cSKevin Wolf case 'v': 746797ac58cSKevin Wolf vflag = 1; 747797ac58cSKevin Wolf break; 748797ac58cSKevin Wolf default: 749c2cdf5c5SKevin Wolf return qemuio_command_usage(&read_cmd); 750797ac58cSKevin Wolf } 751797ac58cSKevin Wolf } 752797ac58cSKevin Wolf 753797ac58cSKevin Wolf if (optind != argc - 2) { 754c2cdf5c5SKevin Wolf return qemuio_command_usage(&read_cmd); 755797ac58cSKevin Wolf } 756797ac58cSKevin Wolf 757797ac58cSKevin Wolf if (bflag && pflag) { 758797ac58cSKevin Wolf printf("-b and -p cannot be specified at the same time\n"); 759797ac58cSKevin Wolf return 0; 760797ac58cSKevin Wolf } 761797ac58cSKevin Wolf 762797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 763797ac58cSKevin Wolf if (offset < 0) { 764a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[optind]); 765797ac58cSKevin Wolf return 0; 766797ac58cSKevin Wolf } 767797ac58cSKevin Wolf 768797ac58cSKevin Wolf optind++; 769797ac58cSKevin Wolf count = cvtnum(argv[optind]); 770797ac58cSKevin Wolf if (count < 0) { 771a9ecfa00SJohn Snow print_cvtnum_err(count, argv[optind]); 772797ac58cSKevin Wolf return 0; 7739b0beaf3SJohn Snow } else if (count > SIZE_MAX) { 7749b0beaf3SJohn Snow printf("length cannot exceed %" PRIu64 ", given %s\n", 7759b0beaf3SJohn Snow (uint64_t) SIZE_MAX, argv[optind]); 7769b0beaf3SJohn Snow return 0; 777797ac58cSKevin Wolf } 778797ac58cSKevin Wolf 779797ac58cSKevin Wolf if (!Pflag && (lflag || sflag)) { 780c2cdf5c5SKevin Wolf return qemuio_command_usage(&read_cmd); 781797ac58cSKevin Wolf } 782797ac58cSKevin Wolf 783797ac58cSKevin Wolf if (!lflag) { 784797ac58cSKevin Wolf pattern_count = count - pattern_offset; 785797ac58cSKevin Wolf } 786797ac58cSKevin Wolf 787797ac58cSKevin Wolf if ((pattern_count < 0) || (pattern_count + pattern_offset > count)) { 788797ac58cSKevin Wolf printf("pattern verification range exceeds end of read data\n"); 789797ac58cSKevin Wolf return 0; 790797ac58cSKevin Wolf } 791797ac58cSKevin Wolf 792797ac58cSKevin Wolf if (!pflag) { 793797ac58cSKevin Wolf if (offset & 0x1ff) { 794797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 795797ac58cSKevin Wolf offset); 796797ac58cSKevin Wolf return 0; 797797ac58cSKevin Wolf } 798797ac58cSKevin Wolf if (count & 0x1ff) { 7999b0beaf3SJohn Snow printf("count %"PRId64" is not sector aligned\n", 800797ac58cSKevin Wolf count); 801797ac58cSKevin Wolf return 0; 802797ac58cSKevin Wolf } 803797ac58cSKevin Wolf } 804797ac58cSKevin Wolf 8054c7b7e9bSMax Reitz buf = qemu_io_alloc(blk, count, 0xab); 806797ac58cSKevin Wolf 807797ac58cSKevin Wolf gettimeofday(&t1, NULL); 808797ac58cSKevin Wolf if (pflag) { 8094c7b7e9bSMax Reitz cnt = do_pread(blk, buf, offset, count, &total); 810797ac58cSKevin Wolf } else if (bflag) { 8114c7b7e9bSMax Reitz cnt = do_load_vmstate(blk, buf, offset, count, &total); 812797ac58cSKevin Wolf } else { 8134c7b7e9bSMax Reitz cnt = do_read(blk, buf, offset, count, &total); 814797ac58cSKevin Wolf } 815797ac58cSKevin Wolf gettimeofday(&t2, NULL); 816797ac58cSKevin Wolf 817797ac58cSKevin Wolf if (cnt < 0) { 818797ac58cSKevin Wolf printf("read failed: %s\n", strerror(-cnt)); 819797ac58cSKevin Wolf goto out; 820797ac58cSKevin Wolf } 821797ac58cSKevin Wolf 822797ac58cSKevin Wolf if (Pflag) { 823797ac58cSKevin Wolf void *cmp_buf = g_malloc(pattern_count); 824797ac58cSKevin Wolf memset(cmp_buf, pattern, pattern_count); 825797ac58cSKevin Wolf if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) { 826797ac58cSKevin Wolf printf("Pattern verification failed at offset %" 8279b0beaf3SJohn Snow PRId64 ", %"PRId64" bytes\n", 828797ac58cSKevin Wolf offset + pattern_offset, pattern_count); 829797ac58cSKevin Wolf } 830797ac58cSKevin Wolf g_free(cmp_buf); 831797ac58cSKevin Wolf } 832797ac58cSKevin Wolf 833797ac58cSKevin Wolf if (qflag) { 834797ac58cSKevin Wolf goto out; 835797ac58cSKevin Wolf } 836797ac58cSKevin Wolf 837797ac58cSKevin Wolf if (vflag) { 838797ac58cSKevin Wolf dump_buffer(buf, offset, count); 839797ac58cSKevin Wolf } 840797ac58cSKevin Wolf 841797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 842797ac58cSKevin Wolf t2 = tsub(t2, t1); 843797ac58cSKevin Wolf print_report("read", &t2, offset, count, total, cnt, Cflag); 844797ac58cSKevin Wolf 845797ac58cSKevin Wolf out: 846797ac58cSKevin Wolf qemu_io_free(buf); 847797ac58cSKevin Wolf 848797ac58cSKevin Wolf return 0; 849797ac58cSKevin Wolf } 850797ac58cSKevin Wolf 851797ac58cSKevin Wolf static void readv_help(void) 852797ac58cSKevin Wolf { 853797ac58cSKevin Wolf printf( 854797ac58cSKevin Wolf "\n" 855797ac58cSKevin Wolf " reads a range of bytes from the given offset into multiple buffers\n" 856797ac58cSKevin Wolf "\n" 857797ac58cSKevin Wolf " Example:\n" 858797ac58cSKevin Wolf " 'readv -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" 859797ac58cSKevin Wolf "\n" 860797ac58cSKevin Wolf " Reads a segment of the currently open file, optionally dumping it to the\n" 861797ac58cSKevin Wolf " standard output stream (with -v option) for subsequent inspection.\n" 862797ac58cSKevin Wolf " Uses multiple iovec buffers if more than one byte range is specified.\n" 863797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 864797ac58cSKevin Wolf " -P, -- use a pattern to verify read data\n" 865797ac58cSKevin Wolf " -v, -- dump buffer to standard output\n" 866797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 867797ac58cSKevin Wolf "\n"); 868797ac58cSKevin Wolf } 869797ac58cSKevin Wolf 8704c7b7e9bSMax Reitz static int readv_f(BlockBackend *blk, int argc, char **argv); 871797ac58cSKevin Wolf 872797ac58cSKevin Wolf static const cmdinfo_t readv_cmd = { 873797ac58cSKevin Wolf .name = "readv", 874797ac58cSKevin Wolf .cfunc = readv_f, 875797ac58cSKevin Wolf .argmin = 2, 876797ac58cSKevin Wolf .argmax = -1, 877797ac58cSKevin Wolf .args = "[-Cqv] [-P pattern ] off len [len..]", 878797ac58cSKevin Wolf .oneline = "reads a number of bytes at a specified offset", 879797ac58cSKevin Wolf .help = readv_help, 880797ac58cSKevin Wolf }; 881797ac58cSKevin Wolf 8824c7b7e9bSMax Reitz static int readv_f(BlockBackend *blk, int argc, char **argv) 883797ac58cSKevin Wolf { 884797ac58cSKevin Wolf struct timeval t1, t2; 885797ac58cSKevin Wolf int Cflag = 0, qflag = 0, vflag = 0; 886797ac58cSKevin Wolf int c, cnt; 887797ac58cSKevin Wolf char *buf; 888797ac58cSKevin Wolf int64_t offset; 889797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 890797ac58cSKevin Wolf int total = 0; 891797ac58cSKevin Wolf int nr_iov; 892797ac58cSKevin Wolf QEMUIOVector qiov; 893797ac58cSKevin Wolf int pattern = 0; 894797ac58cSKevin Wolf int Pflag = 0; 895797ac58cSKevin Wolf 896b062ad86SEric Blake while ((c = getopt(argc, argv, "CP:qv")) != -1) { 897797ac58cSKevin Wolf switch (c) { 898797ac58cSKevin Wolf case 'C': 899797ac58cSKevin Wolf Cflag = 1; 900797ac58cSKevin Wolf break; 901797ac58cSKevin Wolf case 'P': 902797ac58cSKevin Wolf Pflag = 1; 903797ac58cSKevin Wolf pattern = parse_pattern(optarg); 904797ac58cSKevin Wolf if (pattern < 0) { 905797ac58cSKevin Wolf return 0; 906797ac58cSKevin Wolf } 907797ac58cSKevin Wolf break; 908797ac58cSKevin Wolf case 'q': 909797ac58cSKevin Wolf qflag = 1; 910797ac58cSKevin Wolf break; 911797ac58cSKevin Wolf case 'v': 912797ac58cSKevin Wolf vflag = 1; 913797ac58cSKevin Wolf break; 914797ac58cSKevin Wolf default: 915c2cdf5c5SKevin Wolf return qemuio_command_usage(&readv_cmd); 916797ac58cSKevin Wolf } 917797ac58cSKevin Wolf } 918797ac58cSKevin Wolf 919797ac58cSKevin Wolf if (optind > argc - 2) { 920c2cdf5c5SKevin Wolf return qemuio_command_usage(&readv_cmd); 921797ac58cSKevin Wolf } 922797ac58cSKevin Wolf 923797ac58cSKevin Wolf 924797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 925797ac58cSKevin Wolf if (offset < 0) { 926a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[optind]); 927797ac58cSKevin Wolf return 0; 928797ac58cSKevin Wolf } 929797ac58cSKevin Wolf optind++; 930797ac58cSKevin Wolf 931797ac58cSKevin Wolf if (offset & 0x1ff) { 932797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 933797ac58cSKevin Wolf offset); 934797ac58cSKevin Wolf return 0; 935797ac58cSKevin Wolf } 936797ac58cSKevin Wolf 937797ac58cSKevin Wolf nr_iov = argc - optind; 9384c7b7e9bSMax Reitz buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, 0xab); 939797ac58cSKevin Wolf if (buf == NULL) { 940797ac58cSKevin Wolf return 0; 941797ac58cSKevin Wolf } 942797ac58cSKevin Wolf 943797ac58cSKevin Wolf gettimeofday(&t1, NULL); 9444c7b7e9bSMax Reitz cnt = do_aio_readv(blk, &qiov, offset, &total); 945797ac58cSKevin Wolf gettimeofday(&t2, NULL); 946797ac58cSKevin Wolf 947797ac58cSKevin Wolf if (cnt < 0) { 948797ac58cSKevin Wolf printf("readv failed: %s\n", strerror(-cnt)); 949797ac58cSKevin Wolf goto out; 950797ac58cSKevin Wolf } 951797ac58cSKevin Wolf 952797ac58cSKevin Wolf if (Pflag) { 953797ac58cSKevin Wolf void *cmp_buf = g_malloc(qiov.size); 954797ac58cSKevin Wolf memset(cmp_buf, pattern, qiov.size); 955797ac58cSKevin Wolf if (memcmp(buf, cmp_buf, qiov.size)) { 956797ac58cSKevin Wolf printf("Pattern verification failed at offset %" 957797ac58cSKevin Wolf PRId64 ", %zd bytes\n", offset, qiov.size); 958797ac58cSKevin Wolf } 959797ac58cSKevin Wolf g_free(cmp_buf); 960797ac58cSKevin Wolf } 961797ac58cSKevin Wolf 962797ac58cSKevin Wolf if (qflag) { 963797ac58cSKevin Wolf goto out; 964797ac58cSKevin Wolf } 965797ac58cSKevin Wolf 966797ac58cSKevin Wolf if (vflag) { 967797ac58cSKevin Wolf dump_buffer(buf, offset, qiov.size); 968797ac58cSKevin Wolf } 969797ac58cSKevin Wolf 970797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 971797ac58cSKevin Wolf t2 = tsub(t2, t1); 972797ac58cSKevin Wolf print_report("read", &t2, offset, qiov.size, total, cnt, Cflag); 973797ac58cSKevin Wolf 974797ac58cSKevin Wolf out: 975797ac58cSKevin Wolf qemu_iovec_destroy(&qiov); 976797ac58cSKevin Wolf qemu_io_free(buf); 977797ac58cSKevin Wolf return 0; 978797ac58cSKevin Wolf } 979797ac58cSKevin Wolf 980797ac58cSKevin Wolf static void write_help(void) 981797ac58cSKevin Wolf { 982797ac58cSKevin Wolf printf( 983797ac58cSKevin Wolf "\n" 984797ac58cSKevin Wolf " writes a range of bytes from the given offset\n" 985797ac58cSKevin Wolf "\n" 986797ac58cSKevin Wolf " Example:\n" 987797ac58cSKevin Wolf " 'write 512 1k' - writes 1 kilobyte at 512 bytes into the open file\n" 988797ac58cSKevin Wolf "\n" 989797ac58cSKevin Wolf " Writes into a segment of the currently open file, using a buffer\n" 990797ac58cSKevin Wolf " filled with a set pattern (0xcdcdcdcd).\n" 991797ac58cSKevin Wolf " -b, -- write to the VM state rather than the virtual disk\n" 9924c7b7e9bSMax Reitz " -c, -- write compressed data with blk_write_compressed\n" 9934c7b7e9bSMax Reitz " -p, -- use blk_pwrite to write the file\n" 994797ac58cSKevin Wolf " -P, -- use different pattern to fill file\n" 995797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 996797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 9974c7b7e9bSMax Reitz " -z, -- write zeroes using blk_co_write_zeroes\n" 998797ac58cSKevin Wolf "\n"); 999797ac58cSKevin Wolf } 1000797ac58cSKevin Wolf 10014c7b7e9bSMax Reitz static int write_f(BlockBackend *blk, int argc, char **argv); 1002797ac58cSKevin Wolf 1003797ac58cSKevin Wolf static const cmdinfo_t write_cmd = { 1004797ac58cSKevin Wolf .name = "write", 1005797ac58cSKevin Wolf .altname = "w", 1006797ac58cSKevin Wolf .cfunc = write_f, 1007797ac58cSKevin Wolf .argmin = 2, 1008797ac58cSKevin Wolf .argmax = -1, 1009797ac58cSKevin Wolf .args = "[-bcCpqz] [-P pattern ] off len", 1010797ac58cSKevin Wolf .oneline = "writes a number of bytes at a specified offset", 1011797ac58cSKevin Wolf .help = write_help, 1012797ac58cSKevin Wolf }; 1013797ac58cSKevin Wolf 10144c7b7e9bSMax Reitz static int write_f(BlockBackend *blk, int argc, char **argv) 1015797ac58cSKevin Wolf { 1016797ac58cSKevin Wolf struct timeval t1, t2; 1017797ac58cSKevin Wolf int Cflag = 0, pflag = 0, qflag = 0, bflag = 0, Pflag = 0, zflag = 0; 1018797ac58cSKevin Wolf int cflag = 0; 1019797ac58cSKevin Wolf int c, cnt; 1020797ac58cSKevin Wolf char *buf = NULL; 1021797ac58cSKevin Wolf int64_t offset; 10229b0beaf3SJohn Snow int64_t count; 1023797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 10249b0beaf3SJohn Snow int64_t total = 0; 1025797ac58cSKevin Wolf int pattern = 0xcd; 1026797ac58cSKevin Wolf 1027b062ad86SEric Blake while ((c = getopt(argc, argv, "bcCpP:qz")) != -1) { 1028797ac58cSKevin Wolf switch (c) { 1029797ac58cSKevin Wolf case 'b': 1030797ac58cSKevin Wolf bflag = 1; 1031797ac58cSKevin Wolf break; 1032797ac58cSKevin Wolf case 'c': 1033797ac58cSKevin Wolf cflag = 1; 1034797ac58cSKevin Wolf break; 1035797ac58cSKevin Wolf case 'C': 1036797ac58cSKevin Wolf Cflag = 1; 1037797ac58cSKevin Wolf break; 1038797ac58cSKevin Wolf case 'p': 1039797ac58cSKevin Wolf pflag = 1; 1040797ac58cSKevin Wolf break; 1041797ac58cSKevin Wolf case 'P': 1042797ac58cSKevin Wolf Pflag = 1; 1043797ac58cSKevin Wolf pattern = parse_pattern(optarg); 1044797ac58cSKevin Wolf if (pattern < 0) { 1045797ac58cSKevin Wolf return 0; 1046797ac58cSKevin Wolf } 1047797ac58cSKevin Wolf break; 1048797ac58cSKevin Wolf case 'q': 1049797ac58cSKevin Wolf qflag = 1; 1050797ac58cSKevin Wolf break; 1051797ac58cSKevin Wolf case 'z': 1052797ac58cSKevin Wolf zflag = 1; 1053797ac58cSKevin Wolf break; 1054797ac58cSKevin Wolf default: 1055c2cdf5c5SKevin Wolf return qemuio_command_usage(&write_cmd); 1056797ac58cSKevin Wolf } 1057797ac58cSKevin Wolf } 1058797ac58cSKevin Wolf 1059797ac58cSKevin Wolf if (optind != argc - 2) { 1060c2cdf5c5SKevin Wolf return qemuio_command_usage(&write_cmd); 1061797ac58cSKevin Wolf } 1062797ac58cSKevin Wolf 1063797ac58cSKevin Wolf if (bflag + pflag + zflag > 1) { 1064797ac58cSKevin Wolf printf("-b, -p, or -z cannot be specified at the same time\n"); 1065797ac58cSKevin Wolf return 0; 1066797ac58cSKevin Wolf } 1067797ac58cSKevin Wolf 1068797ac58cSKevin Wolf if (zflag && Pflag) { 1069797ac58cSKevin Wolf printf("-z and -P cannot be specified at the same time\n"); 1070797ac58cSKevin Wolf return 0; 1071797ac58cSKevin Wolf } 1072797ac58cSKevin Wolf 1073797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 1074797ac58cSKevin Wolf if (offset < 0) { 1075a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[optind]); 1076797ac58cSKevin Wolf return 0; 1077797ac58cSKevin Wolf } 1078797ac58cSKevin Wolf 1079797ac58cSKevin Wolf optind++; 1080797ac58cSKevin Wolf count = cvtnum(argv[optind]); 1081797ac58cSKevin Wolf if (count < 0) { 1082a9ecfa00SJohn Snow print_cvtnum_err(count, argv[optind]); 1083797ac58cSKevin Wolf return 0; 10849b0beaf3SJohn Snow } else if (count > SIZE_MAX) { 10859b0beaf3SJohn Snow printf("length cannot exceed %" PRIu64 ", given %s\n", 10869b0beaf3SJohn Snow (uint64_t) SIZE_MAX, argv[optind]); 10879b0beaf3SJohn Snow return 0; 1088797ac58cSKevin Wolf } 1089797ac58cSKevin Wolf 1090797ac58cSKevin Wolf if (!pflag) { 1091797ac58cSKevin Wolf if (offset & 0x1ff) { 1092797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1093797ac58cSKevin Wolf offset); 1094797ac58cSKevin Wolf return 0; 1095797ac58cSKevin Wolf } 1096797ac58cSKevin Wolf 1097797ac58cSKevin Wolf if (count & 0x1ff) { 10989b0beaf3SJohn Snow printf("count %"PRId64" is not sector aligned\n", 1099797ac58cSKevin Wolf count); 1100797ac58cSKevin Wolf return 0; 1101797ac58cSKevin Wolf } 1102797ac58cSKevin Wolf } 1103797ac58cSKevin Wolf 1104797ac58cSKevin Wolf if (!zflag) { 11054c7b7e9bSMax Reitz buf = qemu_io_alloc(blk, count, pattern); 1106797ac58cSKevin Wolf } 1107797ac58cSKevin Wolf 1108797ac58cSKevin Wolf gettimeofday(&t1, NULL); 1109797ac58cSKevin Wolf if (pflag) { 11104c7b7e9bSMax Reitz cnt = do_pwrite(blk, buf, offset, count, &total); 1111797ac58cSKevin Wolf } else if (bflag) { 11124c7b7e9bSMax Reitz cnt = do_save_vmstate(blk, buf, offset, count, &total); 1113797ac58cSKevin Wolf } else if (zflag) { 11144c7b7e9bSMax Reitz cnt = do_co_write_zeroes(blk, offset, count, &total); 1115797ac58cSKevin Wolf } else if (cflag) { 11164c7b7e9bSMax Reitz cnt = do_write_compressed(blk, buf, offset, count, &total); 1117797ac58cSKevin Wolf } else { 11184c7b7e9bSMax Reitz cnt = do_write(blk, buf, offset, count, &total); 1119797ac58cSKevin Wolf } 1120797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1121797ac58cSKevin Wolf 1122797ac58cSKevin Wolf if (cnt < 0) { 1123797ac58cSKevin Wolf printf("write failed: %s\n", strerror(-cnt)); 1124797ac58cSKevin Wolf goto out; 1125797ac58cSKevin Wolf } 1126797ac58cSKevin Wolf 1127797ac58cSKevin Wolf if (qflag) { 1128797ac58cSKevin Wolf goto out; 1129797ac58cSKevin Wolf } 1130797ac58cSKevin Wolf 1131797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1132797ac58cSKevin Wolf t2 = tsub(t2, t1); 1133797ac58cSKevin Wolf print_report("wrote", &t2, offset, count, total, cnt, Cflag); 1134797ac58cSKevin Wolf 1135797ac58cSKevin Wolf out: 1136797ac58cSKevin Wolf if (!zflag) { 1137797ac58cSKevin Wolf qemu_io_free(buf); 1138797ac58cSKevin Wolf } 1139797ac58cSKevin Wolf 1140797ac58cSKevin Wolf return 0; 1141797ac58cSKevin Wolf } 1142797ac58cSKevin Wolf 1143797ac58cSKevin Wolf static void 1144797ac58cSKevin Wolf writev_help(void) 1145797ac58cSKevin Wolf { 1146797ac58cSKevin Wolf printf( 1147797ac58cSKevin Wolf "\n" 1148797ac58cSKevin Wolf " writes a range of bytes from the given offset source from multiple buffers\n" 1149797ac58cSKevin Wolf "\n" 1150797ac58cSKevin Wolf " Example:\n" 11516e6507c0SMaria Kustova " 'writev 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" 1152797ac58cSKevin Wolf "\n" 1153797ac58cSKevin Wolf " Writes into a segment of the currently open file, using a buffer\n" 1154797ac58cSKevin Wolf " filled with a set pattern (0xcdcdcdcd).\n" 1155797ac58cSKevin Wolf " -P, -- use different pattern to fill file\n" 1156797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1157797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1158797ac58cSKevin Wolf "\n"); 1159797ac58cSKevin Wolf } 1160797ac58cSKevin Wolf 11614c7b7e9bSMax Reitz static int writev_f(BlockBackend *blk, int argc, char **argv); 1162797ac58cSKevin Wolf 1163797ac58cSKevin Wolf static const cmdinfo_t writev_cmd = { 1164797ac58cSKevin Wolf .name = "writev", 1165797ac58cSKevin Wolf .cfunc = writev_f, 1166797ac58cSKevin Wolf .argmin = 2, 1167797ac58cSKevin Wolf .argmax = -1, 1168797ac58cSKevin Wolf .args = "[-Cq] [-P pattern ] off len [len..]", 1169797ac58cSKevin Wolf .oneline = "writes a number of bytes at a specified offset", 1170797ac58cSKevin Wolf .help = writev_help, 1171797ac58cSKevin Wolf }; 1172797ac58cSKevin Wolf 11734c7b7e9bSMax Reitz static int writev_f(BlockBackend *blk, int argc, char **argv) 1174797ac58cSKevin Wolf { 1175797ac58cSKevin Wolf struct timeval t1, t2; 1176797ac58cSKevin Wolf int Cflag = 0, qflag = 0; 1177797ac58cSKevin Wolf int c, cnt; 1178797ac58cSKevin Wolf char *buf; 1179797ac58cSKevin Wolf int64_t offset; 1180797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 1181797ac58cSKevin Wolf int total = 0; 1182797ac58cSKevin Wolf int nr_iov; 1183797ac58cSKevin Wolf int pattern = 0xcd; 1184797ac58cSKevin Wolf QEMUIOVector qiov; 1185797ac58cSKevin Wolf 1186b062ad86SEric Blake while ((c = getopt(argc, argv, "CqP:")) != -1) { 1187797ac58cSKevin Wolf switch (c) { 1188797ac58cSKevin Wolf case 'C': 1189797ac58cSKevin Wolf Cflag = 1; 1190797ac58cSKevin Wolf break; 1191797ac58cSKevin Wolf case 'q': 1192797ac58cSKevin Wolf qflag = 1; 1193797ac58cSKevin Wolf break; 1194797ac58cSKevin Wolf case 'P': 1195797ac58cSKevin Wolf pattern = parse_pattern(optarg); 1196797ac58cSKevin Wolf if (pattern < 0) { 1197797ac58cSKevin Wolf return 0; 1198797ac58cSKevin Wolf } 1199797ac58cSKevin Wolf break; 1200797ac58cSKevin Wolf default: 1201c2cdf5c5SKevin Wolf return qemuio_command_usage(&writev_cmd); 1202797ac58cSKevin Wolf } 1203797ac58cSKevin Wolf } 1204797ac58cSKevin Wolf 1205797ac58cSKevin Wolf if (optind > argc - 2) { 1206c2cdf5c5SKevin Wolf return qemuio_command_usage(&writev_cmd); 1207797ac58cSKevin Wolf } 1208797ac58cSKevin Wolf 1209797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 1210797ac58cSKevin Wolf if (offset < 0) { 1211a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[optind]); 1212797ac58cSKevin Wolf return 0; 1213797ac58cSKevin Wolf } 1214797ac58cSKevin Wolf optind++; 1215797ac58cSKevin Wolf 1216797ac58cSKevin Wolf if (offset & 0x1ff) { 1217797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1218797ac58cSKevin Wolf offset); 1219797ac58cSKevin Wolf return 0; 1220797ac58cSKevin Wolf } 1221797ac58cSKevin Wolf 1222797ac58cSKevin Wolf nr_iov = argc - optind; 12234c7b7e9bSMax Reitz buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, pattern); 1224797ac58cSKevin Wolf if (buf == NULL) { 1225797ac58cSKevin Wolf return 0; 1226797ac58cSKevin Wolf } 1227797ac58cSKevin Wolf 1228797ac58cSKevin Wolf gettimeofday(&t1, NULL); 12294c7b7e9bSMax Reitz cnt = do_aio_writev(blk, &qiov, offset, &total); 1230797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1231797ac58cSKevin Wolf 1232797ac58cSKevin Wolf if (cnt < 0) { 1233797ac58cSKevin Wolf printf("writev failed: %s\n", strerror(-cnt)); 1234797ac58cSKevin Wolf goto out; 1235797ac58cSKevin Wolf } 1236797ac58cSKevin Wolf 1237797ac58cSKevin Wolf if (qflag) { 1238797ac58cSKevin Wolf goto out; 1239797ac58cSKevin Wolf } 1240797ac58cSKevin Wolf 1241797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1242797ac58cSKevin Wolf t2 = tsub(t2, t1); 1243797ac58cSKevin Wolf print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag); 1244797ac58cSKevin Wolf out: 1245797ac58cSKevin Wolf qemu_iovec_destroy(&qiov); 1246797ac58cSKevin Wolf qemu_io_free(buf); 1247797ac58cSKevin Wolf return 0; 1248797ac58cSKevin Wolf } 1249797ac58cSKevin Wolf 1250797ac58cSKevin Wolf static void multiwrite_help(void) 1251797ac58cSKevin Wolf { 1252797ac58cSKevin Wolf printf( 1253797ac58cSKevin Wolf "\n" 1254797ac58cSKevin Wolf " writes a range of bytes from the given offset source from multiple buffers,\n" 1255797ac58cSKevin Wolf " in a batch of requests that may be merged by qemu\n" 1256797ac58cSKevin Wolf "\n" 1257797ac58cSKevin Wolf " Example:\n" 1258797ac58cSKevin Wolf " 'multiwrite 512 1k 1k ; 4k 1k'\n" 1259797ac58cSKevin Wolf " writes 2 kB at 512 bytes and 1 kB at 4 kB into the open file\n" 1260797ac58cSKevin Wolf "\n" 1261797ac58cSKevin Wolf " Writes into a segment of the currently open file, using a buffer\n" 1262797ac58cSKevin Wolf " filled with a set pattern (0xcdcdcdcd). The pattern byte is increased\n" 1263797ac58cSKevin Wolf " by one for each request contained in the multiwrite command.\n" 1264797ac58cSKevin Wolf " -P, -- use different pattern to fill file\n" 1265797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1266797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1267797ac58cSKevin Wolf "\n"); 1268797ac58cSKevin Wolf } 1269797ac58cSKevin Wolf 12704c7b7e9bSMax Reitz static int multiwrite_f(BlockBackend *blk, int argc, char **argv); 1271797ac58cSKevin Wolf 1272797ac58cSKevin Wolf static const cmdinfo_t multiwrite_cmd = { 1273797ac58cSKevin Wolf .name = "multiwrite", 1274797ac58cSKevin Wolf .cfunc = multiwrite_f, 1275797ac58cSKevin Wolf .argmin = 2, 1276797ac58cSKevin Wolf .argmax = -1, 1277797ac58cSKevin Wolf .args = "[-Cq] [-P pattern ] off len [len..] [; off len [len..]..]", 1278797ac58cSKevin Wolf .oneline = "issues multiple write requests at once", 1279797ac58cSKevin Wolf .help = multiwrite_help, 1280797ac58cSKevin Wolf }; 1281797ac58cSKevin Wolf 12824c7b7e9bSMax Reitz static int multiwrite_f(BlockBackend *blk, int argc, char **argv) 1283797ac58cSKevin Wolf { 1284797ac58cSKevin Wolf struct timeval t1, t2; 1285797ac58cSKevin Wolf int Cflag = 0, qflag = 0; 1286797ac58cSKevin Wolf int c, cnt; 1287797ac58cSKevin Wolf char **buf; 1288797ac58cSKevin Wolf int64_t offset, first_offset = 0; 1289797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 1290797ac58cSKevin Wolf int total = 0; 1291797ac58cSKevin Wolf int nr_iov; 1292797ac58cSKevin Wolf int nr_reqs; 1293797ac58cSKevin Wolf int pattern = 0xcd; 1294797ac58cSKevin Wolf QEMUIOVector *qiovs; 1295797ac58cSKevin Wolf int i; 1296797ac58cSKevin Wolf BlockRequest *reqs; 1297797ac58cSKevin Wolf 1298b062ad86SEric Blake while ((c = getopt(argc, argv, "CqP:")) != -1) { 1299797ac58cSKevin Wolf switch (c) { 1300797ac58cSKevin Wolf case 'C': 1301797ac58cSKevin Wolf Cflag = 1; 1302797ac58cSKevin Wolf break; 1303797ac58cSKevin Wolf case 'q': 1304797ac58cSKevin Wolf qflag = 1; 1305797ac58cSKevin Wolf break; 1306797ac58cSKevin Wolf case 'P': 1307797ac58cSKevin Wolf pattern = parse_pattern(optarg); 1308797ac58cSKevin Wolf if (pattern < 0) { 1309797ac58cSKevin Wolf return 0; 1310797ac58cSKevin Wolf } 1311797ac58cSKevin Wolf break; 1312797ac58cSKevin Wolf default: 1313c2cdf5c5SKevin Wolf return qemuio_command_usage(&writev_cmd); 1314797ac58cSKevin Wolf } 1315797ac58cSKevin Wolf } 1316797ac58cSKevin Wolf 1317797ac58cSKevin Wolf if (optind > argc - 2) { 1318c2cdf5c5SKevin Wolf return qemuio_command_usage(&writev_cmd); 1319797ac58cSKevin Wolf } 1320797ac58cSKevin Wolf 1321797ac58cSKevin Wolf nr_reqs = 1; 1322797ac58cSKevin Wolf for (i = optind; i < argc; i++) { 1323797ac58cSKevin Wolf if (!strcmp(argv[i], ";")) { 1324797ac58cSKevin Wolf nr_reqs++; 1325797ac58cSKevin Wolf } 1326797ac58cSKevin Wolf } 1327797ac58cSKevin Wolf 132802c4f26bSMarkus Armbruster reqs = g_new0(BlockRequest, nr_reqs); 132902c4f26bSMarkus Armbruster buf = g_new0(char *, nr_reqs); 133002c4f26bSMarkus Armbruster qiovs = g_new(QEMUIOVector, nr_reqs); 1331797ac58cSKevin Wolf 1332797ac58cSKevin Wolf for (i = 0; i < nr_reqs && optind < argc; i++) { 1333797ac58cSKevin Wolf int j; 1334797ac58cSKevin Wolf 1335797ac58cSKevin Wolf /* Read the offset of the request */ 1336797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 1337797ac58cSKevin Wolf if (offset < 0) { 1338a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[optind]); 1339797ac58cSKevin Wolf goto out; 1340797ac58cSKevin Wolf } 1341797ac58cSKevin Wolf optind++; 1342797ac58cSKevin Wolf 1343797ac58cSKevin Wolf if (offset & 0x1ff) { 1344797ac58cSKevin Wolf printf("offset %lld is not sector aligned\n", 1345797ac58cSKevin Wolf (long long)offset); 1346797ac58cSKevin Wolf goto out; 1347797ac58cSKevin Wolf } 1348797ac58cSKevin Wolf 1349797ac58cSKevin Wolf if (i == 0) { 1350797ac58cSKevin Wolf first_offset = offset; 1351797ac58cSKevin Wolf } 1352797ac58cSKevin Wolf 1353797ac58cSKevin Wolf /* Read lengths for qiov entries */ 1354797ac58cSKevin Wolf for (j = optind; j < argc; j++) { 1355797ac58cSKevin Wolf if (!strcmp(argv[j], ";")) { 1356797ac58cSKevin Wolf break; 1357797ac58cSKevin Wolf } 1358797ac58cSKevin Wolf } 1359797ac58cSKevin Wolf 1360797ac58cSKevin Wolf nr_iov = j - optind; 1361797ac58cSKevin Wolf 1362797ac58cSKevin Wolf /* Build request */ 13634c7b7e9bSMax Reitz buf[i] = create_iovec(blk, &qiovs[i], &argv[optind], nr_iov, pattern); 1364797ac58cSKevin Wolf if (buf[i] == NULL) { 1365797ac58cSKevin Wolf goto out; 1366797ac58cSKevin Wolf } 1367797ac58cSKevin Wolf 1368797ac58cSKevin Wolf reqs[i].qiov = &qiovs[i]; 1369797ac58cSKevin Wolf reqs[i].sector = offset >> 9; 1370797ac58cSKevin Wolf reqs[i].nb_sectors = reqs[i].qiov->size >> 9; 1371797ac58cSKevin Wolf 1372797ac58cSKevin Wolf optind = j + 1; 1373797ac58cSKevin Wolf 1374797ac58cSKevin Wolf pattern++; 1375797ac58cSKevin Wolf } 1376797ac58cSKevin Wolf 1377797ac58cSKevin Wolf /* If there were empty requests at the end, ignore them */ 1378797ac58cSKevin Wolf nr_reqs = i; 1379797ac58cSKevin Wolf 1380797ac58cSKevin Wolf gettimeofday(&t1, NULL); 13814c7b7e9bSMax Reitz cnt = do_aio_multiwrite(blk, reqs, nr_reqs, &total); 1382797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1383797ac58cSKevin Wolf 1384797ac58cSKevin Wolf if (cnt < 0) { 1385797ac58cSKevin Wolf printf("aio_multiwrite failed: %s\n", strerror(-cnt)); 1386797ac58cSKevin Wolf goto out; 1387797ac58cSKevin Wolf } 1388797ac58cSKevin Wolf 1389797ac58cSKevin Wolf if (qflag) { 1390797ac58cSKevin Wolf goto out; 1391797ac58cSKevin Wolf } 1392797ac58cSKevin Wolf 1393797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1394797ac58cSKevin Wolf t2 = tsub(t2, t1); 1395797ac58cSKevin Wolf print_report("wrote", &t2, first_offset, total, total, cnt, Cflag); 1396797ac58cSKevin Wolf out: 1397797ac58cSKevin Wolf for (i = 0; i < nr_reqs; i++) { 1398797ac58cSKevin Wolf qemu_io_free(buf[i]); 1399797ac58cSKevin Wolf if (reqs[i].qiov != NULL) { 1400797ac58cSKevin Wolf qemu_iovec_destroy(&qiovs[i]); 1401797ac58cSKevin Wolf } 1402797ac58cSKevin Wolf } 1403797ac58cSKevin Wolf g_free(buf); 1404797ac58cSKevin Wolf g_free(reqs); 1405797ac58cSKevin Wolf g_free(qiovs); 1406797ac58cSKevin Wolf return 0; 1407797ac58cSKevin Wolf } 1408797ac58cSKevin Wolf 1409797ac58cSKevin Wolf struct aio_ctx { 14104c7b7e9bSMax Reitz BlockBackend *blk; 1411797ac58cSKevin Wolf QEMUIOVector qiov; 1412797ac58cSKevin Wolf int64_t offset; 1413797ac58cSKevin Wolf char *buf; 1414797ac58cSKevin Wolf int qflag; 1415797ac58cSKevin Wolf int vflag; 1416797ac58cSKevin Wolf int Cflag; 1417797ac58cSKevin Wolf int Pflag; 1418a91f9584SFam Zheng BlockAcctCookie acct; 1419797ac58cSKevin Wolf int pattern; 1420797ac58cSKevin Wolf struct timeval t1; 1421797ac58cSKevin Wolf }; 1422797ac58cSKevin Wolf 1423797ac58cSKevin Wolf static void aio_write_done(void *opaque, int ret) 1424797ac58cSKevin Wolf { 1425797ac58cSKevin Wolf struct aio_ctx *ctx = opaque; 1426797ac58cSKevin Wolf struct timeval t2; 1427797ac58cSKevin Wolf 1428797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1429797ac58cSKevin Wolf 1430797ac58cSKevin Wolf 1431797ac58cSKevin Wolf if (ret < 0) { 1432797ac58cSKevin Wolf printf("aio_write failed: %s\n", strerror(-ret)); 1433556c2b60SAlberto Garcia block_acct_failed(blk_get_stats(ctx->blk), &ctx->acct); 1434797ac58cSKevin Wolf goto out; 1435797ac58cSKevin Wolf } 1436797ac58cSKevin Wolf 14374c7b7e9bSMax Reitz block_acct_done(blk_get_stats(ctx->blk), &ctx->acct); 1438a91f9584SFam Zheng 1439797ac58cSKevin Wolf if (ctx->qflag) { 1440797ac58cSKevin Wolf goto out; 1441797ac58cSKevin Wolf } 1442797ac58cSKevin Wolf 1443797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1444797ac58cSKevin Wolf t2 = tsub(t2, ctx->t1); 1445797ac58cSKevin Wolf print_report("wrote", &t2, ctx->offset, ctx->qiov.size, 1446797ac58cSKevin Wolf ctx->qiov.size, 1, ctx->Cflag); 1447797ac58cSKevin Wolf out: 1448797ac58cSKevin Wolf qemu_io_free(ctx->buf); 1449797ac58cSKevin Wolf qemu_iovec_destroy(&ctx->qiov); 1450797ac58cSKevin Wolf g_free(ctx); 1451797ac58cSKevin Wolf } 1452797ac58cSKevin Wolf 1453797ac58cSKevin Wolf static void aio_read_done(void *opaque, int ret) 1454797ac58cSKevin Wolf { 1455797ac58cSKevin Wolf struct aio_ctx *ctx = opaque; 1456797ac58cSKevin Wolf struct timeval t2; 1457797ac58cSKevin Wolf 1458797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1459797ac58cSKevin Wolf 1460797ac58cSKevin Wolf if (ret < 0) { 1461797ac58cSKevin Wolf printf("readv failed: %s\n", strerror(-ret)); 1462556c2b60SAlberto Garcia block_acct_failed(blk_get_stats(ctx->blk), &ctx->acct); 1463797ac58cSKevin Wolf goto out; 1464797ac58cSKevin Wolf } 1465797ac58cSKevin Wolf 1466797ac58cSKevin Wolf if (ctx->Pflag) { 1467797ac58cSKevin Wolf void *cmp_buf = g_malloc(ctx->qiov.size); 1468797ac58cSKevin Wolf 1469797ac58cSKevin Wolf memset(cmp_buf, ctx->pattern, ctx->qiov.size); 1470797ac58cSKevin Wolf if (memcmp(ctx->buf, cmp_buf, ctx->qiov.size)) { 1471797ac58cSKevin Wolf printf("Pattern verification failed at offset %" 1472797ac58cSKevin Wolf PRId64 ", %zd bytes\n", ctx->offset, ctx->qiov.size); 1473797ac58cSKevin Wolf } 1474797ac58cSKevin Wolf g_free(cmp_buf); 1475797ac58cSKevin Wolf } 1476797ac58cSKevin Wolf 14774c7b7e9bSMax Reitz block_acct_done(blk_get_stats(ctx->blk), &ctx->acct); 1478a91f9584SFam Zheng 1479797ac58cSKevin Wolf if (ctx->qflag) { 1480797ac58cSKevin Wolf goto out; 1481797ac58cSKevin Wolf } 1482797ac58cSKevin Wolf 1483797ac58cSKevin Wolf if (ctx->vflag) { 1484797ac58cSKevin Wolf dump_buffer(ctx->buf, ctx->offset, ctx->qiov.size); 1485797ac58cSKevin Wolf } 1486797ac58cSKevin Wolf 1487797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1488797ac58cSKevin Wolf t2 = tsub(t2, ctx->t1); 1489797ac58cSKevin Wolf print_report("read", &t2, ctx->offset, ctx->qiov.size, 1490797ac58cSKevin Wolf ctx->qiov.size, 1, ctx->Cflag); 1491797ac58cSKevin Wolf out: 1492797ac58cSKevin Wolf qemu_io_free(ctx->buf); 1493797ac58cSKevin Wolf qemu_iovec_destroy(&ctx->qiov); 1494797ac58cSKevin Wolf g_free(ctx); 1495797ac58cSKevin Wolf } 1496797ac58cSKevin Wolf 1497797ac58cSKevin Wolf static void aio_read_help(void) 1498797ac58cSKevin Wolf { 1499797ac58cSKevin Wolf printf( 1500797ac58cSKevin Wolf "\n" 1501797ac58cSKevin Wolf " asynchronously reads a range of bytes from the given offset\n" 1502797ac58cSKevin Wolf "\n" 1503797ac58cSKevin Wolf " Example:\n" 1504797ac58cSKevin Wolf " 'aio_read -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" 1505797ac58cSKevin Wolf "\n" 1506797ac58cSKevin Wolf " Reads a segment of the currently open file, optionally dumping it to the\n" 1507797ac58cSKevin Wolf " standard output stream (with -v option) for subsequent inspection.\n" 1508797ac58cSKevin Wolf " The read is performed asynchronously and the aio_flush command must be\n" 1509797ac58cSKevin Wolf " used to ensure all outstanding aio requests have been completed.\n" 1510797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1511797ac58cSKevin Wolf " -P, -- use a pattern to verify read data\n" 1512797ac58cSKevin Wolf " -v, -- dump buffer to standard output\n" 1513797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1514797ac58cSKevin Wolf "\n"); 1515797ac58cSKevin Wolf } 1516797ac58cSKevin Wolf 15174c7b7e9bSMax Reitz static int aio_read_f(BlockBackend *blk, int argc, char **argv); 1518797ac58cSKevin Wolf 1519797ac58cSKevin Wolf static const cmdinfo_t aio_read_cmd = { 1520797ac58cSKevin Wolf .name = "aio_read", 1521797ac58cSKevin Wolf .cfunc = aio_read_f, 1522797ac58cSKevin Wolf .argmin = 2, 1523797ac58cSKevin Wolf .argmax = -1, 1524797ac58cSKevin Wolf .args = "[-Cqv] [-P pattern ] off len [len..]", 1525797ac58cSKevin Wolf .oneline = "asynchronously reads a number of bytes", 1526797ac58cSKevin Wolf .help = aio_read_help, 1527797ac58cSKevin Wolf }; 1528797ac58cSKevin Wolf 15294c7b7e9bSMax Reitz static int aio_read_f(BlockBackend *blk, int argc, char **argv) 1530797ac58cSKevin Wolf { 1531797ac58cSKevin Wolf int nr_iov, c; 1532797ac58cSKevin Wolf struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); 1533797ac58cSKevin Wolf 15344c7b7e9bSMax Reitz ctx->blk = blk; 1535b062ad86SEric Blake while ((c = getopt(argc, argv, "CP:qv")) != -1) { 1536797ac58cSKevin Wolf switch (c) { 1537797ac58cSKevin Wolf case 'C': 1538797ac58cSKevin Wolf ctx->Cflag = 1; 1539797ac58cSKevin Wolf break; 1540797ac58cSKevin Wolf case 'P': 1541797ac58cSKevin Wolf ctx->Pflag = 1; 1542797ac58cSKevin Wolf ctx->pattern = parse_pattern(optarg); 1543797ac58cSKevin Wolf if (ctx->pattern < 0) { 1544797ac58cSKevin Wolf g_free(ctx); 1545797ac58cSKevin Wolf return 0; 1546797ac58cSKevin Wolf } 1547797ac58cSKevin Wolf break; 1548797ac58cSKevin Wolf case 'q': 1549797ac58cSKevin Wolf ctx->qflag = 1; 1550797ac58cSKevin Wolf break; 1551797ac58cSKevin Wolf case 'v': 1552797ac58cSKevin Wolf ctx->vflag = 1; 1553797ac58cSKevin Wolf break; 1554797ac58cSKevin Wolf default: 1555797ac58cSKevin Wolf g_free(ctx); 1556c2cdf5c5SKevin Wolf return qemuio_command_usage(&aio_read_cmd); 1557797ac58cSKevin Wolf } 1558797ac58cSKevin Wolf } 1559797ac58cSKevin Wolf 1560797ac58cSKevin Wolf if (optind > argc - 2) { 1561797ac58cSKevin Wolf g_free(ctx); 1562c2cdf5c5SKevin Wolf return qemuio_command_usage(&aio_read_cmd); 1563797ac58cSKevin Wolf } 1564797ac58cSKevin Wolf 1565797ac58cSKevin Wolf ctx->offset = cvtnum(argv[optind]); 1566797ac58cSKevin Wolf if (ctx->offset < 0) { 1567a9ecfa00SJohn Snow print_cvtnum_err(ctx->offset, argv[optind]); 1568797ac58cSKevin Wolf g_free(ctx); 1569797ac58cSKevin Wolf return 0; 1570797ac58cSKevin Wolf } 1571797ac58cSKevin Wolf optind++; 1572797ac58cSKevin Wolf 1573797ac58cSKevin Wolf if (ctx->offset & 0x1ff) { 1574797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1575797ac58cSKevin Wolf ctx->offset); 1576556c2b60SAlberto Garcia block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_READ); 1577797ac58cSKevin Wolf g_free(ctx); 1578797ac58cSKevin Wolf return 0; 1579797ac58cSKevin Wolf } 1580797ac58cSKevin Wolf 1581797ac58cSKevin Wolf nr_iov = argc - optind; 15824c7b7e9bSMax Reitz ctx->buf = create_iovec(blk, &ctx->qiov, &argv[optind], nr_iov, 0xab); 1583797ac58cSKevin Wolf if (ctx->buf == NULL) { 1584556c2b60SAlberto Garcia block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_READ); 1585797ac58cSKevin Wolf g_free(ctx); 1586797ac58cSKevin Wolf return 0; 1587797ac58cSKevin Wolf } 1588797ac58cSKevin Wolf 1589797ac58cSKevin Wolf gettimeofday(&ctx->t1, NULL); 15904c7b7e9bSMax Reitz block_acct_start(blk_get_stats(blk), &ctx->acct, ctx->qiov.size, 15914c7b7e9bSMax Reitz BLOCK_ACCT_READ); 15924c7b7e9bSMax Reitz blk_aio_readv(blk, ctx->offset >> 9, &ctx->qiov, 1593797ac58cSKevin Wolf ctx->qiov.size >> 9, aio_read_done, ctx); 1594797ac58cSKevin Wolf return 0; 1595797ac58cSKevin Wolf } 1596797ac58cSKevin Wolf 1597797ac58cSKevin Wolf static void aio_write_help(void) 1598797ac58cSKevin Wolf { 1599797ac58cSKevin Wolf printf( 1600797ac58cSKevin Wolf "\n" 1601797ac58cSKevin Wolf " asynchronously writes a range of bytes from the given offset source\n" 1602797ac58cSKevin Wolf " from multiple buffers\n" 1603797ac58cSKevin Wolf "\n" 1604797ac58cSKevin Wolf " Example:\n" 1605797ac58cSKevin Wolf " 'aio_write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" 1606797ac58cSKevin Wolf "\n" 1607797ac58cSKevin Wolf " Writes into a segment of the currently open file, using a buffer\n" 1608797ac58cSKevin Wolf " filled with a set pattern (0xcdcdcdcd).\n" 1609797ac58cSKevin Wolf " The write is performed asynchronously and the aio_flush command must be\n" 1610797ac58cSKevin Wolf " used to ensure all outstanding aio requests have been completed.\n" 1611797ac58cSKevin Wolf " -P, -- use different pattern to fill file\n" 1612797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1613797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1614797ac58cSKevin Wolf "\n"); 1615797ac58cSKevin Wolf } 1616797ac58cSKevin Wolf 16174c7b7e9bSMax Reitz static int aio_write_f(BlockBackend *blk, int argc, char **argv); 1618797ac58cSKevin Wolf 1619797ac58cSKevin Wolf static const cmdinfo_t aio_write_cmd = { 1620797ac58cSKevin Wolf .name = "aio_write", 1621797ac58cSKevin Wolf .cfunc = aio_write_f, 1622797ac58cSKevin Wolf .argmin = 2, 1623797ac58cSKevin Wolf .argmax = -1, 1624797ac58cSKevin Wolf .args = "[-Cq] [-P pattern ] off len [len..]", 1625797ac58cSKevin Wolf .oneline = "asynchronously writes a number of bytes", 1626797ac58cSKevin Wolf .help = aio_write_help, 1627797ac58cSKevin Wolf }; 1628797ac58cSKevin Wolf 16294c7b7e9bSMax Reitz static int aio_write_f(BlockBackend *blk, int argc, char **argv) 1630797ac58cSKevin Wolf { 1631797ac58cSKevin Wolf int nr_iov, c; 1632797ac58cSKevin Wolf int pattern = 0xcd; 1633797ac58cSKevin Wolf struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); 1634797ac58cSKevin Wolf 16354c7b7e9bSMax Reitz ctx->blk = blk; 1636b062ad86SEric Blake while ((c = getopt(argc, argv, "CqP:")) != -1) { 1637797ac58cSKevin Wolf switch (c) { 1638797ac58cSKevin Wolf case 'C': 1639797ac58cSKevin Wolf ctx->Cflag = 1; 1640797ac58cSKevin Wolf break; 1641797ac58cSKevin Wolf case 'q': 1642797ac58cSKevin Wolf ctx->qflag = 1; 1643797ac58cSKevin Wolf break; 1644797ac58cSKevin Wolf case 'P': 1645797ac58cSKevin Wolf pattern = parse_pattern(optarg); 1646797ac58cSKevin Wolf if (pattern < 0) { 1647797ac58cSKevin Wolf g_free(ctx); 1648797ac58cSKevin Wolf return 0; 1649797ac58cSKevin Wolf } 1650797ac58cSKevin Wolf break; 1651797ac58cSKevin Wolf default: 1652797ac58cSKevin Wolf g_free(ctx); 1653c2cdf5c5SKevin Wolf return qemuio_command_usage(&aio_write_cmd); 1654797ac58cSKevin Wolf } 1655797ac58cSKevin Wolf } 1656797ac58cSKevin Wolf 1657797ac58cSKevin Wolf if (optind > argc - 2) { 1658797ac58cSKevin Wolf g_free(ctx); 1659c2cdf5c5SKevin Wolf return qemuio_command_usage(&aio_write_cmd); 1660797ac58cSKevin Wolf } 1661797ac58cSKevin Wolf 1662797ac58cSKevin Wolf ctx->offset = cvtnum(argv[optind]); 1663797ac58cSKevin Wolf if (ctx->offset < 0) { 1664a9ecfa00SJohn Snow print_cvtnum_err(ctx->offset, argv[optind]); 1665797ac58cSKevin Wolf g_free(ctx); 1666797ac58cSKevin Wolf return 0; 1667797ac58cSKevin Wolf } 1668797ac58cSKevin Wolf optind++; 1669797ac58cSKevin Wolf 1670797ac58cSKevin Wolf if (ctx->offset & 0x1ff) { 1671797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1672797ac58cSKevin Wolf ctx->offset); 1673556c2b60SAlberto Garcia block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_WRITE); 1674797ac58cSKevin Wolf g_free(ctx); 1675797ac58cSKevin Wolf return 0; 1676797ac58cSKevin Wolf } 1677797ac58cSKevin Wolf 1678797ac58cSKevin Wolf nr_iov = argc - optind; 16794c7b7e9bSMax Reitz ctx->buf = create_iovec(blk, &ctx->qiov, &argv[optind], nr_iov, pattern); 1680797ac58cSKevin Wolf if (ctx->buf == NULL) { 1681556c2b60SAlberto Garcia block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_WRITE); 1682797ac58cSKevin Wolf g_free(ctx); 1683797ac58cSKevin Wolf return 0; 1684797ac58cSKevin Wolf } 1685797ac58cSKevin Wolf 1686797ac58cSKevin Wolf gettimeofday(&ctx->t1, NULL); 16874c7b7e9bSMax Reitz block_acct_start(blk_get_stats(blk), &ctx->acct, ctx->qiov.size, 16884c7b7e9bSMax Reitz BLOCK_ACCT_WRITE); 16894c7b7e9bSMax Reitz blk_aio_writev(blk, ctx->offset >> 9, &ctx->qiov, 1690797ac58cSKevin Wolf ctx->qiov.size >> 9, aio_write_done, ctx); 1691797ac58cSKevin Wolf return 0; 1692797ac58cSKevin Wolf } 1693797ac58cSKevin Wolf 16944c7b7e9bSMax Reitz static int aio_flush_f(BlockBackend *blk, int argc, char **argv) 1695797ac58cSKevin Wolf { 1696556c2b60SAlberto Garcia BlockAcctCookie cookie; 1697556c2b60SAlberto Garcia block_acct_start(blk_get_stats(blk), &cookie, 0, BLOCK_ACCT_FLUSH); 16984c7b7e9bSMax Reitz blk_drain_all(); 1699556c2b60SAlberto Garcia block_acct_done(blk_get_stats(blk), &cookie); 1700797ac58cSKevin Wolf return 0; 1701797ac58cSKevin Wolf } 1702797ac58cSKevin Wolf 1703797ac58cSKevin Wolf static const cmdinfo_t aio_flush_cmd = { 1704797ac58cSKevin Wolf .name = "aio_flush", 1705797ac58cSKevin Wolf .cfunc = aio_flush_f, 1706797ac58cSKevin Wolf .oneline = "completes all outstanding aio requests" 1707797ac58cSKevin Wolf }; 1708797ac58cSKevin Wolf 17094c7b7e9bSMax Reitz static int flush_f(BlockBackend *blk, int argc, char **argv) 1710797ac58cSKevin Wolf { 17114c7b7e9bSMax Reitz blk_flush(blk); 1712797ac58cSKevin Wolf return 0; 1713797ac58cSKevin Wolf } 1714797ac58cSKevin Wolf 1715797ac58cSKevin Wolf static const cmdinfo_t flush_cmd = { 1716797ac58cSKevin Wolf .name = "flush", 1717797ac58cSKevin Wolf .altname = "f", 1718797ac58cSKevin Wolf .cfunc = flush_f, 1719797ac58cSKevin Wolf .oneline = "flush all in-core file state to disk", 1720797ac58cSKevin Wolf }; 1721797ac58cSKevin Wolf 17224c7b7e9bSMax Reitz static int truncate_f(BlockBackend *blk, int argc, char **argv) 1723797ac58cSKevin Wolf { 1724797ac58cSKevin Wolf int64_t offset; 1725797ac58cSKevin Wolf int ret; 1726797ac58cSKevin Wolf 1727797ac58cSKevin Wolf offset = cvtnum(argv[1]); 1728797ac58cSKevin Wolf if (offset < 0) { 1729a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[1]); 1730797ac58cSKevin Wolf return 0; 1731797ac58cSKevin Wolf } 1732797ac58cSKevin Wolf 17334c7b7e9bSMax Reitz ret = blk_truncate(blk, offset); 1734797ac58cSKevin Wolf if (ret < 0) { 1735797ac58cSKevin Wolf printf("truncate: %s\n", strerror(-ret)); 1736797ac58cSKevin Wolf return 0; 1737797ac58cSKevin Wolf } 1738797ac58cSKevin Wolf 1739797ac58cSKevin Wolf return 0; 1740797ac58cSKevin Wolf } 1741797ac58cSKevin Wolf 1742797ac58cSKevin Wolf static const cmdinfo_t truncate_cmd = { 1743797ac58cSKevin Wolf .name = "truncate", 1744797ac58cSKevin Wolf .altname = "t", 1745797ac58cSKevin Wolf .cfunc = truncate_f, 1746797ac58cSKevin Wolf .argmin = 1, 1747797ac58cSKevin Wolf .argmax = 1, 1748797ac58cSKevin Wolf .args = "off", 1749797ac58cSKevin Wolf .oneline = "truncates the current file at the given offset", 1750797ac58cSKevin Wolf }; 1751797ac58cSKevin Wolf 17524c7b7e9bSMax Reitz static int length_f(BlockBackend *blk, int argc, char **argv) 1753797ac58cSKevin Wolf { 1754797ac58cSKevin Wolf int64_t size; 1755797ac58cSKevin Wolf char s1[64]; 1756797ac58cSKevin Wolf 17574c7b7e9bSMax Reitz size = blk_getlength(blk); 1758797ac58cSKevin Wolf if (size < 0) { 1759797ac58cSKevin Wolf printf("getlength: %s\n", strerror(-size)); 1760797ac58cSKevin Wolf return 0; 1761797ac58cSKevin Wolf } 1762797ac58cSKevin Wolf 1763797ac58cSKevin Wolf cvtstr(size, s1, sizeof(s1)); 1764797ac58cSKevin Wolf printf("%s\n", s1); 1765797ac58cSKevin Wolf return 0; 1766797ac58cSKevin Wolf } 1767797ac58cSKevin Wolf 1768797ac58cSKevin Wolf 1769797ac58cSKevin Wolf static const cmdinfo_t length_cmd = { 1770797ac58cSKevin Wolf .name = "length", 1771797ac58cSKevin Wolf .altname = "l", 1772797ac58cSKevin Wolf .cfunc = length_f, 1773797ac58cSKevin Wolf .oneline = "gets the length of the current file", 1774797ac58cSKevin Wolf }; 1775797ac58cSKevin Wolf 1776797ac58cSKevin Wolf 17774c7b7e9bSMax Reitz static int info_f(BlockBackend *blk, int argc, char **argv) 1778797ac58cSKevin Wolf { 17794c7b7e9bSMax Reitz BlockDriverState *bs = blk_bs(blk); 1780797ac58cSKevin Wolf BlockDriverInfo bdi; 1781a8d8ecb7SMax Reitz ImageInfoSpecific *spec_info; 1782797ac58cSKevin Wolf char s1[64], s2[64]; 1783797ac58cSKevin Wolf int ret; 1784797ac58cSKevin Wolf 1785797ac58cSKevin Wolf if (bs->drv && bs->drv->format_name) { 1786797ac58cSKevin Wolf printf("format name: %s\n", bs->drv->format_name); 1787797ac58cSKevin Wolf } 1788797ac58cSKevin Wolf if (bs->drv && bs->drv->protocol_name) { 1789797ac58cSKevin Wolf printf("format name: %s\n", bs->drv->protocol_name); 1790797ac58cSKevin Wolf } 1791797ac58cSKevin Wolf 1792797ac58cSKevin Wolf ret = bdrv_get_info(bs, &bdi); 1793797ac58cSKevin Wolf if (ret) { 1794797ac58cSKevin Wolf return 0; 1795797ac58cSKevin Wolf } 1796797ac58cSKevin Wolf 1797797ac58cSKevin Wolf cvtstr(bdi.cluster_size, s1, sizeof(s1)); 1798797ac58cSKevin Wolf cvtstr(bdi.vm_state_offset, s2, sizeof(s2)); 1799797ac58cSKevin Wolf 1800797ac58cSKevin Wolf printf("cluster size: %s\n", s1); 1801797ac58cSKevin Wolf printf("vm state offset: %s\n", s2); 1802797ac58cSKevin Wolf 1803a8d8ecb7SMax Reitz spec_info = bdrv_get_specific_info(bs); 1804a8d8ecb7SMax Reitz if (spec_info) { 1805a8d8ecb7SMax Reitz printf("Format specific information:\n"); 1806a8d8ecb7SMax Reitz bdrv_image_info_specific_dump(fprintf, stdout, spec_info); 1807a8d8ecb7SMax Reitz qapi_free_ImageInfoSpecific(spec_info); 1808a8d8ecb7SMax Reitz } 1809a8d8ecb7SMax Reitz 1810797ac58cSKevin Wolf return 0; 1811797ac58cSKevin Wolf } 1812797ac58cSKevin Wolf 1813797ac58cSKevin Wolf 1814797ac58cSKevin Wolf 1815797ac58cSKevin Wolf static const cmdinfo_t info_cmd = { 1816797ac58cSKevin Wolf .name = "info", 1817797ac58cSKevin Wolf .altname = "i", 1818797ac58cSKevin Wolf .cfunc = info_f, 1819797ac58cSKevin Wolf .oneline = "prints information about the current file", 1820797ac58cSKevin Wolf }; 1821797ac58cSKevin Wolf 1822797ac58cSKevin Wolf static void discard_help(void) 1823797ac58cSKevin Wolf { 1824797ac58cSKevin Wolf printf( 1825797ac58cSKevin Wolf "\n" 1826797ac58cSKevin Wolf " discards a range of bytes from the given offset\n" 1827797ac58cSKevin Wolf "\n" 1828797ac58cSKevin Wolf " Example:\n" 1829797ac58cSKevin Wolf " 'discard 512 1k' - discards 1 kilobyte from 512 bytes into the file\n" 1830797ac58cSKevin Wolf "\n" 1831797ac58cSKevin Wolf " Discards a segment of the currently open file.\n" 1832797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1833797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1834797ac58cSKevin Wolf "\n"); 1835797ac58cSKevin Wolf } 1836797ac58cSKevin Wolf 18374c7b7e9bSMax Reitz static int discard_f(BlockBackend *blk, int argc, char **argv); 1838797ac58cSKevin Wolf 1839797ac58cSKevin Wolf static const cmdinfo_t discard_cmd = { 1840797ac58cSKevin Wolf .name = "discard", 1841797ac58cSKevin Wolf .altname = "d", 1842797ac58cSKevin Wolf .cfunc = discard_f, 1843797ac58cSKevin Wolf .argmin = 2, 1844797ac58cSKevin Wolf .argmax = -1, 1845797ac58cSKevin Wolf .args = "[-Cq] off len", 1846797ac58cSKevin Wolf .oneline = "discards a number of bytes at a specified offset", 1847797ac58cSKevin Wolf .help = discard_help, 1848797ac58cSKevin Wolf }; 1849797ac58cSKevin Wolf 18504c7b7e9bSMax Reitz static int discard_f(BlockBackend *blk, int argc, char **argv) 1851797ac58cSKevin Wolf { 1852797ac58cSKevin Wolf struct timeval t1, t2; 1853797ac58cSKevin Wolf int Cflag = 0, qflag = 0; 1854797ac58cSKevin Wolf int c, ret; 18559b0beaf3SJohn Snow int64_t offset, count; 1856797ac58cSKevin Wolf 1857b062ad86SEric Blake while ((c = getopt(argc, argv, "Cq")) != -1) { 1858797ac58cSKevin Wolf switch (c) { 1859797ac58cSKevin Wolf case 'C': 1860797ac58cSKevin Wolf Cflag = 1; 1861797ac58cSKevin Wolf break; 1862797ac58cSKevin Wolf case 'q': 1863797ac58cSKevin Wolf qflag = 1; 1864797ac58cSKevin Wolf break; 1865797ac58cSKevin Wolf default: 1866c2cdf5c5SKevin Wolf return qemuio_command_usage(&discard_cmd); 1867797ac58cSKevin Wolf } 1868797ac58cSKevin Wolf } 1869797ac58cSKevin Wolf 1870797ac58cSKevin Wolf if (optind != argc - 2) { 1871c2cdf5c5SKevin Wolf return qemuio_command_usage(&discard_cmd); 1872797ac58cSKevin Wolf } 1873797ac58cSKevin Wolf 1874797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 1875797ac58cSKevin Wolf if (offset < 0) { 1876a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[optind]); 1877797ac58cSKevin Wolf return 0; 1878797ac58cSKevin Wolf } 1879797ac58cSKevin Wolf 1880797ac58cSKevin Wolf optind++; 1881797ac58cSKevin Wolf count = cvtnum(argv[optind]); 1882797ac58cSKevin Wolf if (count < 0) { 1883a9ecfa00SJohn Snow print_cvtnum_err(count, argv[optind]); 1884797ac58cSKevin Wolf return 0; 18859b0beaf3SJohn Snow } else if (count >> BDRV_SECTOR_BITS > INT_MAX) { 18869b0beaf3SJohn Snow printf("length cannot exceed %"PRIu64", given %s\n", 18879b0beaf3SJohn Snow (uint64_t)INT_MAX << BDRV_SECTOR_BITS, 18889b0beaf3SJohn Snow argv[optind]); 18899b0beaf3SJohn Snow return 0; 1890797ac58cSKevin Wolf } 1891797ac58cSKevin Wolf 1892797ac58cSKevin Wolf gettimeofday(&t1, NULL); 18934c7b7e9bSMax Reitz ret = blk_discard(blk, offset >> BDRV_SECTOR_BITS, 1894797ac58cSKevin Wolf count >> BDRV_SECTOR_BITS); 1895797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1896797ac58cSKevin Wolf 1897797ac58cSKevin Wolf if (ret < 0) { 1898797ac58cSKevin Wolf printf("discard failed: %s\n", strerror(-ret)); 1899797ac58cSKevin Wolf goto out; 1900797ac58cSKevin Wolf } 1901797ac58cSKevin Wolf 1902797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1903797ac58cSKevin Wolf if (!qflag) { 1904797ac58cSKevin Wolf t2 = tsub(t2, t1); 1905797ac58cSKevin Wolf print_report("discard", &t2, offset, count, count, 1, Cflag); 1906797ac58cSKevin Wolf } 1907797ac58cSKevin Wolf 1908797ac58cSKevin Wolf out: 1909797ac58cSKevin Wolf return 0; 1910797ac58cSKevin Wolf } 1911797ac58cSKevin Wolf 19124c7b7e9bSMax Reitz static int alloc_f(BlockBackend *blk, int argc, char **argv) 1913797ac58cSKevin Wolf { 19144c7b7e9bSMax Reitz BlockDriverState *bs = blk_bs(blk); 19159b0beaf3SJohn Snow int64_t offset, sector_num, nb_sectors, remaining; 1916797ac58cSKevin Wolf char s1[64]; 19179b0beaf3SJohn Snow int num, ret; 19189b0beaf3SJohn Snow int64_t sum_alloc; 1919797ac58cSKevin Wolf 1920797ac58cSKevin Wolf offset = cvtnum(argv[1]); 1921797ac58cSKevin Wolf if (offset < 0) { 1922a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[1]); 1923797ac58cSKevin Wolf return 0; 1924797ac58cSKevin Wolf } else if (offset & 0x1ff) { 1925797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1926797ac58cSKevin Wolf offset); 1927797ac58cSKevin Wolf return 0; 1928797ac58cSKevin Wolf } 1929797ac58cSKevin Wolf 1930797ac58cSKevin Wolf if (argc == 3) { 1931797ac58cSKevin Wolf nb_sectors = cvtnum(argv[2]); 1932797ac58cSKevin Wolf if (nb_sectors < 0) { 1933a9ecfa00SJohn Snow print_cvtnum_err(nb_sectors, argv[2]); 1934797ac58cSKevin Wolf return 0; 19359b0beaf3SJohn Snow } else if (nb_sectors > INT_MAX) { 19369b0beaf3SJohn Snow printf("length argument cannot exceed %d, given %s\n", 19379b0beaf3SJohn Snow INT_MAX, argv[2]); 19389b0beaf3SJohn Snow return 0; 1939797ac58cSKevin Wolf } 1940797ac58cSKevin Wolf } else { 1941797ac58cSKevin Wolf nb_sectors = 1; 1942797ac58cSKevin Wolf } 1943797ac58cSKevin Wolf 1944797ac58cSKevin Wolf remaining = nb_sectors; 1945797ac58cSKevin Wolf sum_alloc = 0; 1946797ac58cSKevin Wolf sector_num = offset >> 9; 1947797ac58cSKevin Wolf while (remaining) { 1948797ac58cSKevin Wolf ret = bdrv_is_allocated(bs, sector_num, remaining, &num); 1949d663640cSPaolo Bonzini if (ret < 0) { 1950d663640cSPaolo Bonzini printf("is_allocated failed: %s\n", strerror(-ret)); 1951d663640cSPaolo Bonzini return 0; 1952d663640cSPaolo Bonzini } 1953797ac58cSKevin Wolf sector_num += num; 1954797ac58cSKevin Wolf remaining -= num; 1955797ac58cSKevin Wolf if (ret) { 1956797ac58cSKevin Wolf sum_alloc += num; 1957797ac58cSKevin Wolf } 1958797ac58cSKevin Wolf if (num == 0) { 1959797ac58cSKevin Wolf nb_sectors -= remaining; 1960797ac58cSKevin Wolf remaining = 0; 1961797ac58cSKevin Wolf } 1962797ac58cSKevin Wolf } 1963797ac58cSKevin Wolf 1964797ac58cSKevin Wolf cvtstr(offset, s1, sizeof(s1)); 1965797ac58cSKevin Wolf 19669b0beaf3SJohn Snow printf("%"PRId64"/%"PRId64" sectors allocated at offset %s\n", 1967797ac58cSKevin Wolf sum_alloc, nb_sectors, s1); 1968797ac58cSKevin Wolf return 0; 1969797ac58cSKevin Wolf } 1970797ac58cSKevin Wolf 1971797ac58cSKevin Wolf static const cmdinfo_t alloc_cmd = { 1972797ac58cSKevin Wolf .name = "alloc", 1973797ac58cSKevin Wolf .altname = "a", 1974797ac58cSKevin Wolf .argmin = 1, 1975797ac58cSKevin Wolf .argmax = 2, 1976797ac58cSKevin Wolf .cfunc = alloc_f, 1977797ac58cSKevin Wolf .args = "off [sectors]", 1978797ac58cSKevin Wolf .oneline = "checks if a sector is present in the file", 1979797ac58cSKevin Wolf }; 1980797ac58cSKevin Wolf 1981797ac58cSKevin Wolf 1982797ac58cSKevin Wolf static int map_is_allocated(BlockDriverState *bs, int64_t sector_num, 1983797ac58cSKevin Wolf int64_t nb_sectors, int64_t *pnum) 1984797ac58cSKevin Wolf { 1985797ac58cSKevin Wolf int num, num_checked; 1986797ac58cSKevin Wolf int ret, firstret; 1987797ac58cSKevin Wolf 1988797ac58cSKevin Wolf num_checked = MIN(nb_sectors, INT_MAX); 1989797ac58cSKevin Wolf ret = bdrv_is_allocated(bs, sector_num, num_checked, &num); 1990797ac58cSKevin Wolf if (ret < 0) { 1991797ac58cSKevin Wolf return ret; 1992797ac58cSKevin Wolf } 1993797ac58cSKevin Wolf 1994797ac58cSKevin Wolf firstret = ret; 1995797ac58cSKevin Wolf *pnum = num; 1996797ac58cSKevin Wolf 1997797ac58cSKevin Wolf while (nb_sectors > 0 && ret == firstret) { 1998797ac58cSKevin Wolf sector_num += num; 1999797ac58cSKevin Wolf nb_sectors -= num; 2000797ac58cSKevin Wolf 2001797ac58cSKevin Wolf num_checked = MIN(nb_sectors, INT_MAX); 2002797ac58cSKevin Wolf ret = bdrv_is_allocated(bs, sector_num, num_checked, &num); 20034b25bbc4SMax Reitz if (ret == firstret && num) { 2004797ac58cSKevin Wolf *pnum += num; 2005797ac58cSKevin Wolf } else { 2006797ac58cSKevin Wolf break; 2007797ac58cSKevin Wolf } 2008797ac58cSKevin Wolf } 2009797ac58cSKevin Wolf 2010797ac58cSKevin Wolf return firstret; 2011797ac58cSKevin Wolf } 2012797ac58cSKevin Wolf 20134c7b7e9bSMax Reitz static int map_f(BlockBackend *blk, int argc, char **argv) 2014797ac58cSKevin Wolf { 2015797ac58cSKevin Wolf int64_t offset; 20164c7b7e9bSMax Reitz int64_t nb_sectors, total_sectors; 2017797ac58cSKevin Wolf char s1[64]; 2018797ac58cSKevin Wolf int64_t num; 2019797ac58cSKevin Wolf int ret; 2020797ac58cSKevin Wolf const char *retstr; 2021797ac58cSKevin Wolf 2022797ac58cSKevin Wolf offset = 0; 20234c7b7e9bSMax Reitz total_sectors = blk_nb_sectors(blk); 20244c7b7e9bSMax Reitz if (total_sectors < 0) { 20254c7b7e9bSMax Reitz error_report("Failed to query image length: %s", 20264c7b7e9bSMax Reitz strerror(-total_sectors)); 20274c7b7e9bSMax Reitz return 0; 20284c7b7e9bSMax Reitz } 20294c7b7e9bSMax Reitz 20304c7b7e9bSMax Reitz nb_sectors = total_sectors; 2031797ac58cSKevin Wolf 2032797ac58cSKevin Wolf do { 20334c7b7e9bSMax Reitz ret = map_is_allocated(blk_bs(blk), offset, nb_sectors, &num); 2034797ac58cSKevin Wolf if (ret < 0) { 2035797ac58cSKevin Wolf error_report("Failed to get allocation status: %s", strerror(-ret)); 2036797ac58cSKevin Wolf return 0; 20374b25bbc4SMax Reitz } else if (!num) { 20384b25bbc4SMax Reitz error_report("Unexpected end of image"); 20394b25bbc4SMax Reitz return 0; 2040797ac58cSKevin Wolf } 2041797ac58cSKevin Wolf 2042797ac58cSKevin Wolf retstr = ret ? " allocated" : "not allocated"; 2043797ac58cSKevin Wolf cvtstr(offset << 9ULL, s1, sizeof(s1)); 2044797ac58cSKevin Wolf printf("[% 24" PRId64 "] % 8" PRId64 "/% 8" PRId64 " sectors %s " 2045797ac58cSKevin Wolf "at offset %s (%d)\n", 2046797ac58cSKevin Wolf offset << 9ULL, num, nb_sectors, retstr, s1, ret); 2047797ac58cSKevin Wolf 2048797ac58cSKevin Wolf offset += num; 2049797ac58cSKevin Wolf nb_sectors -= num; 20504c7b7e9bSMax Reitz } while (offset < total_sectors); 2051797ac58cSKevin Wolf 2052797ac58cSKevin Wolf return 0; 2053797ac58cSKevin Wolf } 2054797ac58cSKevin Wolf 2055797ac58cSKevin Wolf static const cmdinfo_t map_cmd = { 2056797ac58cSKevin Wolf .name = "map", 2057797ac58cSKevin Wolf .argmin = 0, 2058797ac58cSKevin Wolf .argmax = 0, 2059797ac58cSKevin Wolf .cfunc = map_f, 2060797ac58cSKevin Wolf .args = "", 2061797ac58cSKevin Wolf .oneline = "prints the allocated areas of a file", 2062797ac58cSKevin Wolf }; 2063797ac58cSKevin Wolf 20645bbd2e59SKevin Wolf static void reopen_help(void) 20655bbd2e59SKevin Wolf { 20665bbd2e59SKevin Wolf printf( 20675bbd2e59SKevin Wolf "\n" 20685bbd2e59SKevin Wolf " Changes the open options of an already opened image\n" 20695bbd2e59SKevin Wolf "\n" 20705bbd2e59SKevin Wolf " Example:\n" 20715bbd2e59SKevin Wolf " 'reopen -o lazy-refcounts=on' - activates lazy refcount writeback on a qcow2 image\n" 20725bbd2e59SKevin Wolf "\n" 20735bbd2e59SKevin Wolf " -r, -- Reopen the image read-only\n" 20745bbd2e59SKevin Wolf " -c, -- Change the cache mode to the given value\n" 20755bbd2e59SKevin Wolf " -o, -- Changes block driver options (cf. 'open' command)\n" 20765bbd2e59SKevin Wolf "\n"); 20775bbd2e59SKevin Wolf } 20785bbd2e59SKevin Wolf 20795bbd2e59SKevin Wolf static int reopen_f(BlockBackend *blk, int argc, char **argv); 20805bbd2e59SKevin Wolf 20815bbd2e59SKevin Wolf static QemuOptsList reopen_opts = { 20825bbd2e59SKevin Wolf .name = "reopen", 20835bbd2e59SKevin Wolf .merge_lists = true, 20845bbd2e59SKevin Wolf .head = QTAILQ_HEAD_INITIALIZER(reopen_opts.head), 20855bbd2e59SKevin Wolf .desc = { 20865bbd2e59SKevin Wolf /* no elements => accept any params */ 20875bbd2e59SKevin Wolf { /* end of list */ } 20885bbd2e59SKevin Wolf }, 20895bbd2e59SKevin Wolf }; 20905bbd2e59SKevin Wolf 20915bbd2e59SKevin Wolf static const cmdinfo_t reopen_cmd = { 20925bbd2e59SKevin Wolf .name = "reopen", 20935bbd2e59SKevin Wolf .argmin = 0, 20945bbd2e59SKevin Wolf .argmax = -1, 20955bbd2e59SKevin Wolf .cfunc = reopen_f, 20965bbd2e59SKevin Wolf .args = "[-r] [-c cache] [-o options]", 20975bbd2e59SKevin Wolf .oneline = "reopens an image with new options", 20985bbd2e59SKevin Wolf .help = reopen_help, 20995bbd2e59SKevin Wolf }; 21005bbd2e59SKevin Wolf 21015bbd2e59SKevin Wolf static int reopen_f(BlockBackend *blk, int argc, char **argv) 21025bbd2e59SKevin Wolf { 21035bbd2e59SKevin Wolf BlockDriverState *bs = blk_bs(blk); 21045bbd2e59SKevin Wolf QemuOpts *qopts; 21055bbd2e59SKevin Wolf QDict *opts; 21065bbd2e59SKevin Wolf int c; 21075bbd2e59SKevin Wolf int flags = bs->open_flags; 21085bbd2e59SKevin Wolf 21095bbd2e59SKevin Wolf BlockReopenQueue *brq; 21105bbd2e59SKevin Wolf Error *local_err = NULL; 21115bbd2e59SKevin Wolf 21125bbd2e59SKevin Wolf while ((c = getopt(argc, argv, "c:o:r")) != -1) { 21135bbd2e59SKevin Wolf switch (c) { 21145bbd2e59SKevin Wolf case 'c': 21155bbd2e59SKevin Wolf if (bdrv_parse_cache_flags(optarg, &flags) < 0) { 21165bbd2e59SKevin Wolf error_report("Invalid cache option: %s", optarg); 21175bbd2e59SKevin Wolf return 0; 21185bbd2e59SKevin Wolf } 21195bbd2e59SKevin Wolf break; 21205bbd2e59SKevin Wolf case 'o': 21215bbd2e59SKevin Wolf if (!qemu_opts_parse_noisily(&reopen_opts, optarg, 0)) { 21225bbd2e59SKevin Wolf qemu_opts_reset(&reopen_opts); 21235bbd2e59SKevin Wolf return 0; 21245bbd2e59SKevin Wolf } 21255bbd2e59SKevin Wolf break; 21265bbd2e59SKevin Wolf case 'r': 21275bbd2e59SKevin Wolf flags &= ~BDRV_O_RDWR; 21285bbd2e59SKevin Wolf break; 21295bbd2e59SKevin Wolf default: 21305bbd2e59SKevin Wolf qemu_opts_reset(&reopen_opts); 21315bbd2e59SKevin Wolf return qemuio_command_usage(&reopen_cmd); 21325bbd2e59SKevin Wolf } 21335bbd2e59SKevin Wolf } 21345bbd2e59SKevin Wolf 21355bbd2e59SKevin Wolf if (optind != argc) { 21365bbd2e59SKevin Wolf qemu_opts_reset(&reopen_opts); 21375bbd2e59SKevin Wolf return qemuio_command_usage(&reopen_cmd); 21385bbd2e59SKevin Wolf } 21395bbd2e59SKevin Wolf 21405bbd2e59SKevin Wolf qopts = qemu_opts_find(&reopen_opts, NULL); 21415bbd2e59SKevin Wolf opts = qopts ? qemu_opts_to_qdict(qopts, NULL) : NULL; 21425bbd2e59SKevin Wolf qemu_opts_reset(&reopen_opts); 21435bbd2e59SKevin Wolf 21445bbd2e59SKevin Wolf brq = bdrv_reopen_queue(NULL, bs, opts, flags); 21455bbd2e59SKevin Wolf bdrv_reopen_multiple(brq, &local_err); 21465bbd2e59SKevin Wolf if (local_err) { 21475bbd2e59SKevin Wolf error_report_err(local_err); 21485bbd2e59SKevin Wolf } 21495bbd2e59SKevin Wolf 21505bbd2e59SKevin Wolf return 0; 21515bbd2e59SKevin Wolf } 21525bbd2e59SKevin Wolf 21534c7b7e9bSMax Reitz static int break_f(BlockBackend *blk, int argc, char **argv) 2154797ac58cSKevin Wolf { 2155797ac58cSKevin Wolf int ret; 2156797ac58cSKevin Wolf 21574c7b7e9bSMax Reitz ret = bdrv_debug_breakpoint(blk_bs(blk), argv[1], argv[2]); 2158797ac58cSKevin Wolf if (ret < 0) { 2159797ac58cSKevin Wolf printf("Could not set breakpoint: %s\n", strerror(-ret)); 2160797ac58cSKevin Wolf } 2161797ac58cSKevin Wolf 2162797ac58cSKevin Wolf return 0; 2163797ac58cSKevin Wolf } 2164797ac58cSKevin Wolf 21654c7b7e9bSMax Reitz static int remove_break_f(BlockBackend *blk, int argc, char **argv) 21664cc70e93SFam Zheng { 21674cc70e93SFam Zheng int ret; 21684cc70e93SFam Zheng 21694c7b7e9bSMax Reitz ret = bdrv_debug_remove_breakpoint(blk_bs(blk), argv[1]); 21704cc70e93SFam Zheng if (ret < 0) { 21714cc70e93SFam Zheng printf("Could not remove breakpoint %s: %s\n", argv[1], strerror(-ret)); 21724cc70e93SFam Zheng } 21734cc70e93SFam Zheng 21744cc70e93SFam Zheng return 0; 21754cc70e93SFam Zheng } 21764cc70e93SFam Zheng 2177797ac58cSKevin Wolf static const cmdinfo_t break_cmd = { 2178797ac58cSKevin Wolf .name = "break", 2179797ac58cSKevin Wolf .argmin = 2, 2180797ac58cSKevin Wolf .argmax = 2, 2181797ac58cSKevin Wolf .cfunc = break_f, 2182797ac58cSKevin Wolf .args = "event tag", 2183797ac58cSKevin Wolf .oneline = "sets a breakpoint on event and tags the stopped " 2184797ac58cSKevin Wolf "request as tag", 2185797ac58cSKevin Wolf }; 2186797ac58cSKevin Wolf 21874cc70e93SFam Zheng static const cmdinfo_t remove_break_cmd = { 21884cc70e93SFam Zheng .name = "remove_break", 21894cc70e93SFam Zheng .argmin = 1, 21904cc70e93SFam Zheng .argmax = 1, 21914cc70e93SFam Zheng .cfunc = remove_break_f, 21924cc70e93SFam Zheng .args = "tag", 21934cc70e93SFam Zheng .oneline = "remove a breakpoint by tag", 21944cc70e93SFam Zheng }; 21954cc70e93SFam Zheng 21964c7b7e9bSMax Reitz static int resume_f(BlockBackend *blk, int argc, char **argv) 2197797ac58cSKevin Wolf { 2198797ac58cSKevin Wolf int ret; 2199797ac58cSKevin Wolf 22004c7b7e9bSMax Reitz ret = bdrv_debug_resume(blk_bs(blk), argv[1]); 2201797ac58cSKevin Wolf if (ret < 0) { 2202797ac58cSKevin Wolf printf("Could not resume request: %s\n", strerror(-ret)); 2203797ac58cSKevin Wolf } 2204797ac58cSKevin Wolf 2205797ac58cSKevin Wolf return 0; 2206797ac58cSKevin Wolf } 2207797ac58cSKevin Wolf 2208797ac58cSKevin Wolf static const cmdinfo_t resume_cmd = { 2209797ac58cSKevin Wolf .name = "resume", 2210797ac58cSKevin Wolf .argmin = 1, 2211797ac58cSKevin Wolf .argmax = 1, 2212797ac58cSKevin Wolf .cfunc = resume_f, 2213797ac58cSKevin Wolf .args = "tag", 2214797ac58cSKevin Wolf .oneline = "resumes the request tagged as tag", 2215797ac58cSKevin Wolf }; 2216797ac58cSKevin Wolf 22174c7b7e9bSMax Reitz static int wait_break_f(BlockBackend *blk, int argc, char **argv) 2218797ac58cSKevin Wolf { 22194c7b7e9bSMax Reitz while (!bdrv_debug_is_suspended(blk_bs(blk), argv[1])) { 22204c7b7e9bSMax Reitz aio_poll(blk_get_aio_context(blk), true); 2221797ac58cSKevin Wolf } 2222797ac58cSKevin Wolf 2223797ac58cSKevin Wolf return 0; 2224797ac58cSKevin Wolf } 2225797ac58cSKevin Wolf 2226797ac58cSKevin Wolf static const cmdinfo_t wait_break_cmd = { 2227797ac58cSKevin Wolf .name = "wait_break", 2228797ac58cSKevin Wolf .argmin = 1, 2229797ac58cSKevin Wolf .argmax = 1, 2230797ac58cSKevin Wolf .cfunc = wait_break_f, 2231797ac58cSKevin Wolf .args = "tag", 2232797ac58cSKevin Wolf .oneline = "waits for the suspension of a request", 2233797ac58cSKevin Wolf }; 2234797ac58cSKevin Wolf 22354c7b7e9bSMax Reitz static int abort_f(BlockBackend *blk, int argc, char **argv) 2236797ac58cSKevin Wolf { 2237797ac58cSKevin Wolf abort(); 2238797ac58cSKevin Wolf } 2239797ac58cSKevin Wolf 2240797ac58cSKevin Wolf static const cmdinfo_t abort_cmd = { 2241797ac58cSKevin Wolf .name = "abort", 2242797ac58cSKevin Wolf .cfunc = abort_f, 2243797ac58cSKevin Wolf .flags = CMD_NOFILE_OK, 2244797ac58cSKevin Wolf .oneline = "simulate a program crash using abort(3)", 2245797ac58cSKevin Wolf }; 2246797ac58cSKevin Wolf 22470e82dc7bSMax Reitz static void sigraise_help(void) 22480e82dc7bSMax Reitz { 22490e82dc7bSMax Reitz printf( 22500e82dc7bSMax Reitz "\n" 22510e82dc7bSMax Reitz " raises the given signal\n" 22520e82dc7bSMax Reitz "\n" 22530e82dc7bSMax Reitz " Example:\n" 22540e82dc7bSMax Reitz " 'sigraise %i' - raises SIGTERM\n" 22550e82dc7bSMax Reitz "\n" 22560e82dc7bSMax Reitz " Invokes raise(signal), where \"signal\" is the mandatory integer argument\n" 22570e82dc7bSMax Reitz " given to sigraise.\n" 22580e82dc7bSMax Reitz "\n", SIGTERM); 22590e82dc7bSMax Reitz } 22600e82dc7bSMax Reitz 22614c7b7e9bSMax Reitz static int sigraise_f(BlockBackend *blk, int argc, char **argv); 22620e82dc7bSMax Reitz 22630e82dc7bSMax Reitz static const cmdinfo_t sigraise_cmd = { 22640e82dc7bSMax Reitz .name = "sigraise", 22650e82dc7bSMax Reitz .cfunc = sigraise_f, 22660e82dc7bSMax Reitz .argmin = 1, 22670e82dc7bSMax Reitz .argmax = 1, 22680e82dc7bSMax Reitz .flags = CMD_NOFILE_OK, 22690e82dc7bSMax Reitz .args = "signal", 22700e82dc7bSMax Reitz .oneline = "raises a signal", 22710e82dc7bSMax Reitz .help = sigraise_help, 22720e82dc7bSMax Reitz }; 22730e82dc7bSMax Reitz 22744c7b7e9bSMax Reitz static int sigraise_f(BlockBackend *blk, int argc, char **argv) 22750e82dc7bSMax Reitz { 22769b0beaf3SJohn Snow int64_t sig = cvtnum(argv[1]); 22770e82dc7bSMax Reitz if (sig < 0) { 2278a9ecfa00SJohn Snow print_cvtnum_err(sig, argv[1]); 22790e82dc7bSMax Reitz return 0; 22809b0beaf3SJohn Snow } else if (sig > NSIG) { 22819b0beaf3SJohn Snow printf("signal argument '%s' is too large to be a valid signal\n", 22829b0beaf3SJohn Snow argv[1]); 22839b0beaf3SJohn Snow return 0; 22840e82dc7bSMax Reitz } 22850e82dc7bSMax Reitz 22860e82dc7bSMax Reitz /* Using raise() to kill this process does not necessarily flush all open 22870e82dc7bSMax Reitz * streams. At least stdout and stderr (although the latter should be 22880e82dc7bSMax Reitz * non-buffered anyway) should be flushed, though. */ 22890e82dc7bSMax Reitz fflush(stdout); 22900e82dc7bSMax Reitz fflush(stderr); 22910e82dc7bSMax Reitz 22920e82dc7bSMax Reitz raise(sig); 22930e82dc7bSMax Reitz return 0; 22940e82dc7bSMax Reitz } 22950e82dc7bSMax Reitz 2296cd33d02aSKevin Wolf static void sleep_cb(void *opaque) 2297cd33d02aSKevin Wolf { 2298cd33d02aSKevin Wolf bool *expired = opaque; 2299cd33d02aSKevin Wolf *expired = true; 2300cd33d02aSKevin Wolf } 2301cd33d02aSKevin Wolf 23024c7b7e9bSMax Reitz static int sleep_f(BlockBackend *blk, int argc, char **argv) 2303cd33d02aSKevin Wolf { 2304cd33d02aSKevin Wolf char *endptr; 2305cd33d02aSKevin Wolf long ms; 2306cd33d02aSKevin Wolf struct QEMUTimer *timer; 2307cd33d02aSKevin Wolf bool expired = false; 2308cd33d02aSKevin Wolf 2309cd33d02aSKevin Wolf ms = strtol(argv[1], &endptr, 0); 2310cd33d02aSKevin Wolf if (ms < 0 || *endptr != '\0') { 2311cd33d02aSKevin Wolf printf("%s is not a valid number\n", argv[1]); 2312cd33d02aSKevin Wolf return 0; 2313cd33d02aSKevin Wolf } 2314cd33d02aSKevin Wolf 2315cd33d02aSKevin Wolf timer = timer_new_ns(QEMU_CLOCK_HOST, sleep_cb, &expired); 2316cd33d02aSKevin Wolf timer_mod(timer, qemu_clock_get_ns(QEMU_CLOCK_HOST) + SCALE_MS * ms); 2317cd33d02aSKevin Wolf 2318cd33d02aSKevin Wolf while (!expired) { 2319cd33d02aSKevin Wolf main_loop_wait(false); 2320cd33d02aSKevin Wolf } 2321cd33d02aSKevin Wolf 2322cd33d02aSKevin Wolf timer_free(timer); 2323cd33d02aSKevin Wolf 2324cd33d02aSKevin Wolf return 0; 2325cd33d02aSKevin Wolf } 2326cd33d02aSKevin Wolf 2327cd33d02aSKevin Wolf static const cmdinfo_t sleep_cmd = { 2328cd33d02aSKevin Wolf .name = "sleep", 2329cd33d02aSKevin Wolf .argmin = 1, 2330cd33d02aSKevin Wolf .argmax = 1, 2331cd33d02aSKevin Wolf .cfunc = sleep_f, 2332cd33d02aSKevin Wolf .flags = CMD_NOFILE_OK, 2333cd33d02aSKevin Wolf .oneline = "waits for the given value in milliseconds", 2334cd33d02aSKevin Wolf }; 2335cd33d02aSKevin Wolf 2336f18a834aSKevin Wolf static void help_oneline(const char *cmd, const cmdinfo_t *ct) 2337f18a834aSKevin Wolf { 2338f18a834aSKevin Wolf if (cmd) { 2339f18a834aSKevin Wolf printf("%s ", cmd); 2340f18a834aSKevin Wolf } else { 2341f18a834aSKevin Wolf printf("%s ", ct->name); 2342f18a834aSKevin Wolf if (ct->altname) { 2343f18a834aSKevin Wolf printf("(or %s) ", ct->altname); 2344f18a834aSKevin Wolf } 2345f18a834aSKevin Wolf } 2346f18a834aSKevin Wolf 2347f18a834aSKevin Wolf if (ct->args) { 2348f18a834aSKevin Wolf printf("%s ", ct->args); 2349f18a834aSKevin Wolf } 2350f18a834aSKevin Wolf printf("-- %s\n", ct->oneline); 2351f18a834aSKevin Wolf } 2352f18a834aSKevin Wolf 2353f18a834aSKevin Wolf static void help_onecmd(const char *cmd, const cmdinfo_t *ct) 2354f18a834aSKevin Wolf { 2355f18a834aSKevin Wolf help_oneline(cmd, ct); 2356f18a834aSKevin Wolf if (ct->help) { 2357f18a834aSKevin Wolf ct->help(); 2358f18a834aSKevin Wolf } 2359f18a834aSKevin Wolf } 2360f18a834aSKevin Wolf 2361f18a834aSKevin Wolf static void help_all(void) 2362f18a834aSKevin Wolf { 2363f18a834aSKevin Wolf const cmdinfo_t *ct; 2364f18a834aSKevin Wolf 2365f18a834aSKevin Wolf for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { 2366f18a834aSKevin Wolf help_oneline(ct->name, ct); 2367f18a834aSKevin Wolf } 2368f18a834aSKevin Wolf printf("\nUse 'help commandname' for extended help.\n"); 2369f18a834aSKevin Wolf } 2370f18a834aSKevin Wolf 23714c7b7e9bSMax Reitz static int help_f(BlockBackend *blk, int argc, char **argv) 2372f18a834aSKevin Wolf { 2373f18a834aSKevin Wolf const cmdinfo_t *ct; 2374f18a834aSKevin Wolf 2375f18a834aSKevin Wolf if (argc == 1) { 2376f18a834aSKevin Wolf help_all(); 2377f18a834aSKevin Wolf return 0; 2378f18a834aSKevin Wolf } 2379f18a834aSKevin Wolf 2380f18a834aSKevin Wolf ct = find_command(argv[1]); 2381f18a834aSKevin Wolf if (ct == NULL) { 2382f18a834aSKevin Wolf printf("command %s not found\n", argv[1]); 2383f18a834aSKevin Wolf return 0; 2384f18a834aSKevin Wolf } 2385f18a834aSKevin Wolf 2386f18a834aSKevin Wolf help_onecmd(argv[1], ct); 2387f18a834aSKevin Wolf return 0; 2388f18a834aSKevin Wolf } 2389f18a834aSKevin Wolf 2390f18a834aSKevin Wolf static const cmdinfo_t help_cmd = { 2391f18a834aSKevin Wolf .name = "help", 2392f18a834aSKevin Wolf .altname = "?", 2393f18a834aSKevin Wolf .cfunc = help_f, 2394f18a834aSKevin Wolf .argmin = 0, 2395f18a834aSKevin Wolf .argmax = 1, 2396f18a834aSKevin Wolf .flags = CMD_FLAG_GLOBAL, 2397f18a834aSKevin Wolf .args = "[command]", 2398f18a834aSKevin Wolf .oneline = "help for one or all commands", 2399f18a834aSKevin Wolf }; 2400f18a834aSKevin Wolf 24014c7b7e9bSMax Reitz bool qemuio_command(BlockBackend *blk, const char *cmd) 2402dd583296SKevin Wolf { 2403dd583296SKevin Wolf char *input; 2404dd583296SKevin Wolf const cmdinfo_t *ct; 2405dd583296SKevin Wolf char **v; 2406dd583296SKevin Wolf int c; 2407dd583296SKevin Wolf bool done = false; 2408dd583296SKevin Wolf 2409dd583296SKevin Wolf input = g_strdup(cmd); 2410dd583296SKevin Wolf v = breakline(input, &c); 2411dd583296SKevin Wolf if (c) { 2412dd583296SKevin Wolf ct = find_command(v[0]); 2413dd583296SKevin Wolf if (ct) { 24144c7b7e9bSMax Reitz done = command(blk, ct, c, v); 2415dd583296SKevin Wolf } else { 2416dd583296SKevin Wolf fprintf(stderr, "command \"%s\" not found\n", v[0]); 2417dd583296SKevin Wolf } 2418dd583296SKevin Wolf } 2419dd583296SKevin Wolf g_free(input); 2420dd583296SKevin Wolf g_free(v); 2421dd583296SKevin Wolf 2422dd583296SKevin Wolf return done; 2423dd583296SKevin Wolf } 2424dd583296SKevin Wolf 2425797ac58cSKevin Wolf static void __attribute((constructor)) init_qemuio_commands(void) 2426797ac58cSKevin Wolf { 2427797ac58cSKevin Wolf /* initialize commands */ 2428c2cdf5c5SKevin Wolf qemuio_add_command(&help_cmd); 2429c2cdf5c5SKevin Wolf qemuio_add_command(&read_cmd); 2430c2cdf5c5SKevin Wolf qemuio_add_command(&readv_cmd); 2431c2cdf5c5SKevin Wolf qemuio_add_command(&write_cmd); 2432c2cdf5c5SKevin Wolf qemuio_add_command(&writev_cmd); 2433c2cdf5c5SKevin Wolf qemuio_add_command(&multiwrite_cmd); 2434c2cdf5c5SKevin Wolf qemuio_add_command(&aio_read_cmd); 2435c2cdf5c5SKevin Wolf qemuio_add_command(&aio_write_cmd); 2436c2cdf5c5SKevin Wolf qemuio_add_command(&aio_flush_cmd); 2437c2cdf5c5SKevin Wolf qemuio_add_command(&flush_cmd); 2438c2cdf5c5SKevin Wolf qemuio_add_command(&truncate_cmd); 2439c2cdf5c5SKevin Wolf qemuio_add_command(&length_cmd); 2440c2cdf5c5SKevin Wolf qemuio_add_command(&info_cmd); 2441c2cdf5c5SKevin Wolf qemuio_add_command(&discard_cmd); 2442c2cdf5c5SKevin Wolf qemuio_add_command(&alloc_cmd); 2443c2cdf5c5SKevin Wolf qemuio_add_command(&map_cmd); 24445bbd2e59SKevin Wolf qemuio_add_command(&reopen_cmd); 2445c2cdf5c5SKevin Wolf qemuio_add_command(&break_cmd); 24464cc70e93SFam Zheng qemuio_add_command(&remove_break_cmd); 2447c2cdf5c5SKevin Wolf qemuio_add_command(&resume_cmd); 2448c2cdf5c5SKevin Wolf qemuio_add_command(&wait_break_cmd); 2449c2cdf5c5SKevin Wolf qemuio_add_command(&abort_cmd); 2450cd33d02aSKevin Wolf qemuio_add_command(&sleep_cmd); 24510e82dc7bSMax Reitz qemuio_add_command(&sigraise_cmd); 2452797ac58cSKevin Wolf } 2453