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 11*80c71a24SPeter Maydell #include "qemu/osdep.h" 123d21994fSKevin Wolf #include "qemu-io.h" 134c7b7e9bSMax Reitz #include "sysemu/block-backend.h" 144c7b7e9bSMax Reitz #include "block/block.h" 154c7b7e9bSMax Reitz #include "block/block_int.h" /* for info_f() */ 16a8d8ecb7SMax Reitz #include "block/qapi.h" 17d49b6836SMarkus Armbruster #include "qemu/error-report.h" 186a1751b7SAlex Bligh #include "qemu/main-loop.h" 19cd33d02aSKevin Wolf #include "qemu/timer.h" 20a91f9584SFam Zheng #include "sysemu/block-backend.h" 21797ac58cSKevin Wolf 22797ac58cSKevin Wolf #define CMD_NOFILE_OK 0x01 23797ac58cSKevin Wolf 24f9883880SStefan Weil bool qemuio_misalign; 25797ac58cSKevin Wolf 26c2cdf5c5SKevin Wolf static cmdinfo_t *cmdtab; 27c2cdf5c5SKevin Wolf static int ncmds; 28c2cdf5c5SKevin Wolf 29c2cdf5c5SKevin Wolf static int compare_cmdname(const void *a, const void *b) 30c2cdf5c5SKevin Wolf { 31c2cdf5c5SKevin Wolf return strcmp(((const cmdinfo_t *)a)->name, 32c2cdf5c5SKevin Wolf ((const cmdinfo_t *)b)->name); 33c2cdf5c5SKevin Wolf } 34c2cdf5c5SKevin Wolf 35c2cdf5c5SKevin Wolf void qemuio_add_command(const cmdinfo_t *ci) 36c2cdf5c5SKevin Wolf { 3702c4f26bSMarkus Armbruster cmdtab = g_renew(cmdinfo_t, cmdtab, ++ncmds); 38c2cdf5c5SKevin Wolf cmdtab[ncmds - 1] = *ci; 39c2cdf5c5SKevin Wolf qsort(cmdtab, ncmds, sizeof(*cmdtab), compare_cmdname); 40c2cdf5c5SKevin Wolf } 41c2cdf5c5SKevin Wolf 42c2cdf5c5SKevin Wolf int qemuio_command_usage(const cmdinfo_t *ci) 43c2cdf5c5SKevin Wolf { 44c2cdf5c5SKevin Wolf printf("%s %s -- %s\n", ci->name, ci->args, ci->oneline); 45c2cdf5c5SKevin Wolf return 0; 46c2cdf5c5SKevin Wolf } 47c2cdf5c5SKevin Wolf 484c7b7e9bSMax Reitz static int init_check_command(BlockBackend *blk, const cmdinfo_t *ct) 49c2cdf5c5SKevin Wolf { 50c2cdf5c5SKevin Wolf if (ct->flags & CMD_FLAG_GLOBAL) { 51c2cdf5c5SKevin Wolf return 1; 52c2cdf5c5SKevin Wolf } 534c7b7e9bSMax Reitz if (!(ct->flags & CMD_NOFILE_OK) && !blk) { 54c2cdf5c5SKevin Wolf fprintf(stderr, "no file open, try 'help open'\n"); 55c2cdf5c5SKevin Wolf return 0; 56c2cdf5c5SKevin Wolf } 57c2cdf5c5SKevin Wolf return 1; 58c2cdf5c5SKevin Wolf } 59c2cdf5c5SKevin Wolf 604c7b7e9bSMax Reitz static int command(BlockBackend *blk, const cmdinfo_t *ct, int argc, 613d21994fSKevin Wolf char **argv) 62c2cdf5c5SKevin Wolf { 63c2cdf5c5SKevin Wolf char *cmd = argv[0]; 64c2cdf5c5SKevin Wolf 654c7b7e9bSMax Reitz if (!init_check_command(blk, ct)) { 66c2cdf5c5SKevin Wolf return 0; 67c2cdf5c5SKevin Wolf } 68c2cdf5c5SKevin Wolf 69c2cdf5c5SKevin Wolf if (argc - 1 < ct->argmin || (ct->argmax != -1 && argc - 1 > ct->argmax)) { 70c2cdf5c5SKevin Wolf if (ct->argmax == -1) { 71c2cdf5c5SKevin Wolf fprintf(stderr, 72c2cdf5c5SKevin Wolf "bad argument count %d to %s, expected at least %d arguments\n", 73c2cdf5c5SKevin Wolf argc-1, cmd, ct->argmin); 74c2cdf5c5SKevin Wolf } else if (ct->argmin == ct->argmax) { 75c2cdf5c5SKevin Wolf fprintf(stderr, 76c2cdf5c5SKevin Wolf "bad argument count %d to %s, expected %d arguments\n", 77c2cdf5c5SKevin Wolf argc-1, cmd, ct->argmin); 78c2cdf5c5SKevin Wolf } else { 79c2cdf5c5SKevin Wolf fprintf(stderr, 80c2cdf5c5SKevin Wolf "bad argument count %d to %s, expected between %d and %d arguments\n", 81c2cdf5c5SKevin Wolf argc-1, cmd, ct->argmin, ct->argmax); 82c2cdf5c5SKevin Wolf } 83c2cdf5c5SKevin Wolf return 0; 84c2cdf5c5SKevin Wolf } 85c2cdf5c5SKevin Wolf optind = 0; 864c7b7e9bSMax Reitz return ct->cfunc(blk, argc, argv); 87c2cdf5c5SKevin Wolf } 88c2cdf5c5SKevin Wolf 89c2cdf5c5SKevin Wolf static const cmdinfo_t *find_command(const char *cmd) 90c2cdf5c5SKevin Wolf { 91c2cdf5c5SKevin Wolf cmdinfo_t *ct; 92c2cdf5c5SKevin Wolf 93c2cdf5c5SKevin Wolf for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { 94c2cdf5c5SKevin Wolf if (strcmp(ct->name, cmd) == 0 || 95c2cdf5c5SKevin Wolf (ct->altname && strcmp(ct->altname, cmd) == 0)) 96c2cdf5c5SKevin Wolf { 97c2cdf5c5SKevin Wolf return (const cmdinfo_t *)ct; 98c2cdf5c5SKevin Wolf } 99c2cdf5c5SKevin Wolf } 100c2cdf5c5SKevin Wolf return NULL; 101c2cdf5c5SKevin Wolf } 102c2cdf5c5SKevin Wolf 1034694020dSStefan Hajnoczi /* Invoke fn() for commands with a matching prefix */ 1044694020dSStefan Hajnoczi void qemuio_complete_command(const char *input, 1054694020dSStefan Hajnoczi void (*fn)(const char *cmd, void *opaque), 1064694020dSStefan Hajnoczi void *opaque) 1074694020dSStefan Hajnoczi { 1084694020dSStefan Hajnoczi cmdinfo_t *ct; 1094694020dSStefan Hajnoczi size_t input_len = strlen(input); 1104694020dSStefan Hajnoczi 1114694020dSStefan Hajnoczi for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { 1124694020dSStefan Hajnoczi if (strncmp(input, ct->name, input_len) == 0) { 1134694020dSStefan Hajnoczi fn(ct->name, opaque); 1144694020dSStefan Hajnoczi } 1154694020dSStefan Hajnoczi } 1164694020dSStefan Hajnoczi } 1174694020dSStefan Hajnoczi 118c2cdf5c5SKevin Wolf static char **breakline(char *input, int *count) 119c2cdf5c5SKevin Wolf { 120c2cdf5c5SKevin Wolf int c = 0; 121c2cdf5c5SKevin Wolf char *p; 1225839e53bSMarkus Armbruster char **rval = g_new0(char *, 1); 123c2cdf5c5SKevin Wolf 124c2cdf5c5SKevin Wolf while (rval && (p = qemu_strsep(&input, " ")) != NULL) { 125c2cdf5c5SKevin Wolf if (!*p) { 126c2cdf5c5SKevin Wolf continue; 127c2cdf5c5SKevin Wolf } 128c2cdf5c5SKevin Wolf c++; 12908193dd5SMarkus Armbruster rval = g_renew(char *, rval, (c + 1)); 130c2cdf5c5SKevin Wolf rval[c - 1] = p; 131c2cdf5c5SKevin Wolf rval[c] = NULL; 132c2cdf5c5SKevin Wolf } 133c2cdf5c5SKevin Wolf *count = c; 134c2cdf5c5SKevin Wolf return rval; 135c2cdf5c5SKevin Wolf } 136c2cdf5c5SKevin Wolf 137797ac58cSKevin Wolf static int64_t cvtnum(const char *s) 138797ac58cSKevin Wolf { 139797ac58cSKevin Wolf char *end; 140ef5a7885SJohn Snow int64_t ret; 141ef5a7885SJohn Snow 142ef5a7885SJohn Snow ret = qemu_strtosz_suffix(s, &end, QEMU_STRTOSZ_DEFSUFFIX_B); 143ef5a7885SJohn Snow if (*end != '\0') { 144ef5a7885SJohn Snow /* Detritus at the end of the string */ 145ef5a7885SJohn Snow return -EINVAL; 146ef5a7885SJohn Snow } 147ef5a7885SJohn Snow return ret; 148797ac58cSKevin Wolf } 149797ac58cSKevin Wolf 150a9ecfa00SJohn Snow static void print_cvtnum_err(int64_t rc, const char *arg) 151a9ecfa00SJohn Snow { 152a9ecfa00SJohn Snow switch (rc) { 153a9ecfa00SJohn Snow case -EINVAL: 154a9ecfa00SJohn Snow printf("Parsing error: non-numeric argument," 155a9ecfa00SJohn Snow " or extraneous/unrecognized suffix -- %s\n", arg); 156a9ecfa00SJohn Snow break; 157a9ecfa00SJohn Snow case -ERANGE: 158a9ecfa00SJohn Snow printf("Parsing error: argument too large -- %s\n", arg); 159a9ecfa00SJohn Snow break; 160a9ecfa00SJohn Snow default: 161a9ecfa00SJohn Snow printf("Parsing error: %s\n", arg); 162a9ecfa00SJohn Snow } 163a9ecfa00SJohn Snow } 164a9ecfa00SJohn Snow 1650b613881SKevin Wolf #define EXABYTES(x) ((long long)(x) << 60) 1660b613881SKevin Wolf #define PETABYTES(x) ((long long)(x) << 50) 1670b613881SKevin Wolf #define TERABYTES(x) ((long long)(x) << 40) 1680b613881SKevin Wolf #define GIGABYTES(x) ((long long)(x) << 30) 1690b613881SKevin Wolf #define MEGABYTES(x) ((long long)(x) << 20) 1700b613881SKevin Wolf #define KILOBYTES(x) ((long long)(x) << 10) 1710b613881SKevin Wolf 1720b613881SKevin Wolf #define TO_EXABYTES(x) ((x) / EXABYTES(1)) 1730b613881SKevin Wolf #define TO_PETABYTES(x) ((x) / PETABYTES(1)) 1740b613881SKevin Wolf #define TO_TERABYTES(x) ((x) / TERABYTES(1)) 1750b613881SKevin Wolf #define TO_GIGABYTES(x) ((x) / GIGABYTES(1)) 1760b613881SKevin Wolf #define TO_MEGABYTES(x) ((x) / MEGABYTES(1)) 1770b613881SKevin Wolf #define TO_KILOBYTES(x) ((x) / KILOBYTES(1)) 1780b613881SKevin Wolf 1790b613881SKevin Wolf static void cvtstr(double value, char *str, size_t size) 1800b613881SKevin Wolf { 1810b613881SKevin Wolf char *trim; 1820b613881SKevin Wolf const char *suffix; 1830b613881SKevin Wolf 1840b613881SKevin Wolf if (value >= EXABYTES(1)) { 1850b613881SKevin Wolf suffix = " EiB"; 1860b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_EXABYTES(value)); 1870b613881SKevin Wolf } else if (value >= PETABYTES(1)) { 1880b613881SKevin Wolf suffix = " PiB"; 1890b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_PETABYTES(value)); 1900b613881SKevin Wolf } else if (value >= TERABYTES(1)) { 1910b613881SKevin Wolf suffix = " TiB"; 1920b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_TERABYTES(value)); 1930b613881SKevin Wolf } else if (value >= GIGABYTES(1)) { 1940b613881SKevin Wolf suffix = " GiB"; 1950b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_GIGABYTES(value)); 1960b613881SKevin Wolf } else if (value >= MEGABYTES(1)) { 1970b613881SKevin Wolf suffix = " MiB"; 1980b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_MEGABYTES(value)); 1990b613881SKevin Wolf } else if (value >= KILOBYTES(1)) { 2000b613881SKevin Wolf suffix = " KiB"; 2010b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_KILOBYTES(value)); 2020b613881SKevin Wolf } else { 2030b613881SKevin Wolf suffix = " bytes"; 2040b613881SKevin Wolf snprintf(str, size - 6, "%f", value); 2050b613881SKevin Wolf } 2060b613881SKevin Wolf 2070b613881SKevin Wolf trim = strstr(str, ".000"); 2080b613881SKevin Wolf if (trim) { 2090b613881SKevin Wolf strcpy(trim, suffix); 2100b613881SKevin Wolf } else { 2110b613881SKevin Wolf strcat(str, suffix); 2120b613881SKevin Wolf } 2130b613881SKevin Wolf } 2140b613881SKevin Wolf 2150b613881SKevin Wolf 2160b613881SKevin Wolf 2170b613881SKevin Wolf static struct timeval tsub(struct timeval t1, struct timeval t2) 2180b613881SKevin Wolf { 2190b613881SKevin Wolf t1.tv_usec -= t2.tv_usec; 2200b613881SKevin Wolf if (t1.tv_usec < 0) { 2210b613881SKevin Wolf t1.tv_usec += 1000000; 2220b613881SKevin Wolf t1.tv_sec--; 2230b613881SKevin Wolf } 2240b613881SKevin Wolf t1.tv_sec -= t2.tv_sec; 2250b613881SKevin Wolf return t1; 2260b613881SKevin Wolf } 2270b613881SKevin Wolf 2280b613881SKevin Wolf static double tdiv(double value, struct timeval tv) 2290b613881SKevin Wolf { 2300b613881SKevin Wolf return value / ((double)tv.tv_sec + ((double)tv.tv_usec / 1000000.0)); 2310b613881SKevin Wolf } 2320b613881SKevin Wolf 2330b613881SKevin Wolf #define HOURS(sec) ((sec) / (60 * 60)) 2340b613881SKevin Wolf #define MINUTES(sec) (((sec) % (60 * 60)) / 60) 2350b613881SKevin Wolf #define SECONDS(sec) ((sec) % 60) 2360b613881SKevin Wolf 2370b613881SKevin Wolf enum { 2380b613881SKevin Wolf DEFAULT_TIME = 0x0, 2390b613881SKevin Wolf TERSE_FIXED_TIME = 0x1, 2400b613881SKevin Wolf VERBOSE_FIXED_TIME = 0x2, 2410b613881SKevin Wolf }; 2420b613881SKevin Wolf 2430b613881SKevin Wolf static void timestr(struct timeval *tv, char *ts, size_t size, int format) 2440b613881SKevin Wolf { 2450b613881SKevin Wolf double usec = (double)tv->tv_usec / 1000000.0; 2460b613881SKevin Wolf 2470b613881SKevin Wolf if (format & TERSE_FIXED_TIME) { 2480b613881SKevin Wolf if (!HOURS(tv->tv_sec)) { 2490b613881SKevin Wolf snprintf(ts, size, "%u:%02u.%02u", 2500b613881SKevin Wolf (unsigned int) MINUTES(tv->tv_sec), 2510b613881SKevin Wolf (unsigned int) SECONDS(tv->tv_sec), 2520b613881SKevin Wolf (unsigned int) (usec * 100)); 2530b613881SKevin Wolf return; 2540b613881SKevin Wolf } 2550b613881SKevin Wolf format |= VERBOSE_FIXED_TIME; /* fallback if hours needed */ 2560b613881SKevin Wolf } 2570b613881SKevin Wolf 2580b613881SKevin Wolf if ((format & VERBOSE_FIXED_TIME) || tv->tv_sec) { 2590b613881SKevin Wolf snprintf(ts, size, "%u:%02u:%02u.%02u", 2600b613881SKevin Wolf (unsigned int) HOURS(tv->tv_sec), 2610b613881SKevin Wolf (unsigned int) MINUTES(tv->tv_sec), 2620b613881SKevin Wolf (unsigned int) SECONDS(tv->tv_sec), 2630b613881SKevin Wolf (unsigned int) (usec * 100)); 2640b613881SKevin Wolf } else { 2650b613881SKevin Wolf snprintf(ts, size, "0.%04u sec", (unsigned int) (usec * 10000)); 2660b613881SKevin Wolf } 2670b613881SKevin Wolf } 2680b613881SKevin Wolf 269797ac58cSKevin Wolf /* 270797ac58cSKevin Wolf * Parse the pattern argument to various sub-commands. 271797ac58cSKevin Wolf * 272797ac58cSKevin Wolf * Because the pattern is used as an argument to memset it must evaluate 273797ac58cSKevin Wolf * to an unsigned integer that fits into a single byte. 274797ac58cSKevin Wolf */ 275797ac58cSKevin Wolf static int parse_pattern(const char *arg) 276797ac58cSKevin Wolf { 277797ac58cSKevin Wolf char *endptr = NULL; 278797ac58cSKevin Wolf long pattern; 279797ac58cSKevin Wolf 280797ac58cSKevin Wolf pattern = strtol(arg, &endptr, 0); 281797ac58cSKevin Wolf if (pattern < 0 || pattern > UCHAR_MAX || *endptr != '\0') { 282797ac58cSKevin Wolf printf("%s is not a valid pattern byte\n", arg); 283797ac58cSKevin Wolf return -1; 284797ac58cSKevin Wolf } 285797ac58cSKevin Wolf 286797ac58cSKevin Wolf return pattern; 287797ac58cSKevin Wolf } 288797ac58cSKevin Wolf 289797ac58cSKevin Wolf /* 290797ac58cSKevin Wolf * Memory allocation helpers. 291797ac58cSKevin Wolf * 292797ac58cSKevin Wolf * Make sure memory is aligned by default, or purposefully misaligned if 293797ac58cSKevin Wolf * that is specified on the command line. 294797ac58cSKevin Wolf */ 295797ac58cSKevin Wolf 296797ac58cSKevin Wolf #define MISALIGN_OFFSET 16 2974c7b7e9bSMax Reitz static void *qemu_io_alloc(BlockBackend *blk, size_t len, int pattern) 298797ac58cSKevin Wolf { 299797ac58cSKevin Wolf void *buf; 300797ac58cSKevin Wolf 301797ac58cSKevin Wolf if (qemuio_misalign) { 302797ac58cSKevin Wolf len += MISALIGN_OFFSET; 303797ac58cSKevin Wolf } 3044c7b7e9bSMax Reitz buf = blk_blockalign(blk, len); 305797ac58cSKevin Wolf memset(buf, pattern, len); 306797ac58cSKevin Wolf if (qemuio_misalign) { 307797ac58cSKevin Wolf buf += MISALIGN_OFFSET; 308797ac58cSKevin Wolf } 309797ac58cSKevin Wolf return buf; 310797ac58cSKevin Wolf } 311797ac58cSKevin Wolf 312797ac58cSKevin Wolf static void qemu_io_free(void *p) 313797ac58cSKevin Wolf { 314797ac58cSKevin Wolf if (qemuio_misalign) { 315797ac58cSKevin Wolf p -= MISALIGN_OFFSET; 316797ac58cSKevin Wolf } 317797ac58cSKevin Wolf qemu_vfree(p); 318797ac58cSKevin Wolf } 319797ac58cSKevin Wolf 3209b0beaf3SJohn Snow static void dump_buffer(const void *buffer, int64_t offset, int64_t len) 321797ac58cSKevin Wolf { 3229b0beaf3SJohn Snow uint64_t i; 3239b0beaf3SJohn Snow int j; 324797ac58cSKevin Wolf const uint8_t *p; 325797ac58cSKevin Wolf 326797ac58cSKevin Wolf for (i = 0, p = buffer; i < len; i += 16) { 327797ac58cSKevin Wolf const uint8_t *s = p; 328797ac58cSKevin Wolf 329797ac58cSKevin Wolf printf("%08" PRIx64 ": ", offset + i); 330797ac58cSKevin Wolf for (j = 0; j < 16 && i + j < len; j++, p++) { 331797ac58cSKevin Wolf printf("%02x ", *p); 332797ac58cSKevin Wolf } 333797ac58cSKevin Wolf printf(" "); 334797ac58cSKevin Wolf for (j = 0; j < 16 && i + j < len; j++, s++) { 335797ac58cSKevin Wolf if (isalnum(*s)) { 336797ac58cSKevin Wolf printf("%c", *s); 337797ac58cSKevin Wolf } else { 338797ac58cSKevin Wolf printf("."); 339797ac58cSKevin Wolf } 340797ac58cSKevin Wolf } 341797ac58cSKevin Wolf printf("\n"); 342797ac58cSKevin Wolf } 343797ac58cSKevin Wolf } 344797ac58cSKevin Wolf 345797ac58cSKevin Wolf static void print_report(const char *op, struct timeval *t, int64_t offset, 3469b0beaf3SJohn Snow int64_t count, int64_t total, int cnt, int Cflag) 347797ac58cSKevin Wolf { 348797ac58cSKevin Wolf char s1[64], s2[64], ts[64]; 349797ac58cSKevin Wolf 350797ac58cSKevin Wolf timestr(t, ts, sizeof(ts), Cflag ? VERBOSE_FIXED_TIME : 0); 351797ac58cSKevin Wolf if (!Cflag) { 352797ac58cSKevin Wolf cvtstr((double)total, s1, sizeof(s1)); 353797ac58cSKevin Wolf cvtstr(tdiv((double)total, *t), s2, sizeof(s2)); 3549b0beaf3SJohn Snow printf("%s %"PRId64"/%"PRId64" bytes at offset %" PRId64 "\n", 355797ac58cSKevin Wolf op, total, count, offset); 356797ac58cSKevin Wolf printf("%s, %d ops; %s (%s/sec and %.4f ops/sec)\n", 357797ac58cSKevin Wolf s1, cnt, ts, s2, tdiv((double)cnt, *t)); 358797ac58cSKevin Wolf } else {/* bytes,ops,time,bytes/sec,ops/sec */ 3599b0beaf3SJohn Snow printf("%"PRId64",%d,%s,%.3f,%.3f\n", 360797ac58cSKevin Wolf total, cnt, ts, 361797ac58cSKevin Wolf tdiv((double)total, *t), 362797ac58cSKevin Wolf tdiv((double)cnt, *t)); 363797ac58cSKevin Wolf } 364797ac58cSKevin Wolf } 365797ac58cSKevin Wolf 366797ac58cSKevin Wolf /* 367797ac58cSKevin Wolf * Parse multiple length statements for vectored I/O, and construct an I/O 368797ac58cSKevin Wolf * vector matching it. 369797ac58cSKevin Wolf */ 370797ac58cSKevin Wolf static void * 3714c7b7e9bSMax Reitz create_iovec(BlockBackend *blk, QEMUIOVector *qiov, char **argv, int nr_iov, 372797ac58cSKevin Wolf int pattern) 373797ac58cSKevin Wolf { 374797ac58cSKevin Wolf size_t *sizes = g_new0(size_t, nr_iov); 375797ac58cSKevin Wolf size_t count = 0; 376797ac58cSKevin Wolf void *buf = NULL; 377797ac58cSKevin Wolf void *p; 378797ac58cSKevin Wolf int i; 379797ac58cSKevin Wolf 380797ac58cSKevin Wolf for (i = 0; i < nr_iov; i++) { 381797ac58cSKevin Wolf char *arg = argv[i]; 382797ac58cSKevin Wolf int64_t len; 383797ac58cSKevin Wolf 384797ac58cSKevin Wolf len = cvtnum(arg); 385797ac58cSKevin Wolf if (len < 0) { 386a9ecfa00SJohn Snow print_cvtnum_err(len, arg); 387797ac58cSKevin Wolf goto fail; 388797ac58cSKevin Wolf } 389797ac58cSKevin Wolf 390797ac58cSKevin Wolf /* should be SIZE_T_MAX, but that doesn't exist */ 391797ac58cSKevin Wolf if (len > INT_MAX) { 392a9ecfa00SJohn Snow printf("Argument '%s' exceeds maximum size %d\n", arg, INT_MAX); 393797ac58cSKevin Wolf goto fail; 394797ac58cSKevin Wolf } 395797ac58cSKevin Wolf 396797ac58cSKevin Wolf if (len & 0x1ff) { 397797ac58cSKevin Wolf printf("length argument %" PRId64 398797ac58cSKevin Wolf " is not sector aligned\n", len); 399797ac58cSKevin Wolf goto fail; 400797ac58cSKevin Wolf } 401797ac58cSKevin Wolf 402797ac58cSKevin Wolf sizes[i] = len; 403797ac58cSKevin Wolf count += len; 404797ac58cSKevin Wolf } 405797ac58cSKevin Wolf 406797ac58cSKevin Wolf qemu_iovec_init(qiov, nr_iov); 407797ac58cSKevin Wolf 4084c7b7e9bSMax Reitz buf = p = qemu_io_alloc(blk, count, pattern); 409797ac58cSKevin Wolf 410797ac58cSKevin Wolf for (i = 0; i < nr_iov; i++) { 411797ac58cSKevin Wolf qemu_iovec_add(qiov, p, sizes[i]); 412797ac58cSKevin Wolf p += sizes[i]; 413797ac58cSKevin Wolf } 414797ac58cSKevin Wolf 415797ac58cSKevin Wolf fail: 416797ac58cSKevin Wolf g_free(sizes); 417797ac58cSKevin Wolf return buf; 418797ac58cSKevin Wolf } 419797ac58cSKevin Wolf 4209b0beaf3SJohn Snow static int do_read(BlockBackend *blk, char *buf, int64_t offset, int64_t count, 4219b0beaf3SJohn Snow int64_t *total) 422797ac58cSKevin Wolf { 423797ac58cSKevin Wolf int ret; 424797ac58cSKevin Wolf 4259b0beaf3SJohn Snow if (count >> 9 > INT_MAX) { 4269b0beaf3SJohn Snow return -ERANGE; 4279b0beaf3SJohn Snow } 4289b0beaf3SJohn Snow 4294c7b7e9bSMax Reitz ret = blk_read(blk, offset >> 9, (uint8_t *)buf, count >> 9); 430797ac58cSKevin Wolf if (ret < 0) { 431797ac58cSKevin Wolf return ret; 432797ac58cSKevin Wolf } 433797ac58cSKevin Wolf *total = count; 434797ac58cSKevin Wolf return 1; 435797ac58cSKevin Wolf } 436797ac58cSKevin Wolf 4379b0beaf3SJohn Snow static int do_write(BlockBackend *blk, char *buf, int64_t offset, int64_t count, 4389b0beaf3SJohn Snow int64_t *total) 439797ac58cSKevin Wolf { 440797ac58cSKevin Wolf int ret; 441797ac58cSKevin Wolf 4429b0beaf3SJohn Snow if (count >> 9 > INT_MAX) { 4439b0beaf3SJohn Snow return -ERANGE; 4449b0beaf3SJohn Snow } 4459b0beaf3SJohn Snow 4464c7b7e9bSMax Reitz ret = blk_write(blk, offset >> 9, (uint8_t *)buf, count >> 9); 447797ac58cSKevin Wolf if (ret < 0) { 448797ac58cSKevin Wolf return ret; 449797ac58cSKevin Wolf } 450797ac58cSKevin Wolf *total = count; 451797ac58cSKevin Wolf return 1; 452797ac58cSKevin Wolf } 453797ac58cSKevin Wolf 4549b0beaf3SJohn Snow static int do_pread(BlockBackend *blk, char *buf, int64_t offset, 4559b0beaf3SJohn Snow int64_t count, int64_t *total) 456797ac58cSKevin Wolf { 4579b0beaf3SJohn Snow if (count > INT_MAX) { 4589b0beaf3SJohn Snow return -ERANGE; 4599b0beaf3SJohn Snow } 4609b0beaf3SJohn Snow 4614c7b7e9bSMax Reitz *total = blk_pread(blk, offset, (uint8_t *)buf, count); 462797ac58cSKevin Wolf if (*total < 0) { 463797ac58cSKevin Wolf return *total; 464797ac58cSKevin Wolf } 465797ac58cSKevin Wolf return 1; 466797ac58cSKevin Wolf } 467797ac58cSKevin Wolf 4689b0beaf3SJohn Snow static int do_pwrite(BlockBackend *blk, char *buf, int64_t offset, 4699b0beaf3SJohn Snow int64_t count, int64_t *total) 470797ac58cSKevin Wolf { 4719b0beaf3SJohn Snow if (count > INT_MAX) { 4729b0beaf3SJohn Snow return -ERANGE; 4739b0beaf3SJohn Snow } 4749b0beaf3SJohn Snow 4754c7b7e9bSMax Reitz *total = blk_pwrite(blk, offset, (uint8_t *)buf, count); 476797ac58cSKevin Wolf if (*total < 0) { 477797ac58cSKevin Wolf return *total; 478797ac58cSKevin Wolf } 479797ac58cSKevin Wolf return 1; 480797ac58cSKevin Wolf } 481797ac58cSKevin Wolf 482797ac58cSKevin Wolf typedef struct { 4834c7b7e9bSMax Reitz BlockBackend *blk; 484797ac58cSKevin Wolf int64_t offset; 4859b0beaf3SJohn Snow int64_t count; 4869b0beaf3SJohn Snow int64_t *total; 487797ac58cSKevin Wolf int ret; 488797ac58cSKevin Wolf bool done; 489797ac58cSKevin Wolf } CoWriteZeroes; 490797ac58cSKevin Wolf 491797ac58cSKevin Wolf static void coroutine_fn co_write_zeroes_entry(void *opaque) 492797ac58cSKevin Wolf { 493797ac58cSKevin Wolf CoWriteZeroes *data = opaque; 494797ac58cSKevin Wolf 4954c7b7e9bSMax Reitz data->ret = blk_co_write_zeroes(data->blk, data->offset / BDRV_SECTOR_SIZE, 496aa7bfbffSPeter Lieven data->count / BDRV_SECTOR_SIZE, 0); 497797ac58cSKevin Wolf data->done = true; 498797ac58cSKevin Wolf if (data->ret < 0) { 499797ac58cSKevin Wolf *data->total = data->ret; 500797ac58cSKevin Wolf return; 501797ac58cSKevin Wolf } 502797ac58cSKevin Wolf 503797ac58cSKevin Wolf *data->total = data->count; 504797ac58cSKevin Wolf } 505797ac58cSKevin Wolf 5069b0beaf3SJohn Snow static int do_co_write_zeroes(BlockBackend *blk, int64_t offset, int64_t count, 5079b0beaf3SJohn Snow int64_t *total) 508797ac58cSKevin Wolf { 509797ac58cSKevin Wolf Coroutine *co; 510797ac58cSKevin Wolf CoWriteZeroes data = { 5114c7b7e9bSMax Reitz .blk = blk, 512797ac58cSKevin Wolf .offset = offset, 513797ac58cSKevin Wolf .count = count, 514797ac58cSKevin Wolf .total = total, 515797ac58cSKevin Wolf .done = false, 516797ac58cSKevin Wolf }; 517797ac58cSKevin Wolf 5189b0beaf3SJohn Snow if (count >> BDRV_SECTOR_BITS > INT_MAX) { 5199b0beaf3SJohn Snow return -ERANGE; 5209b0beaf3SJohn Snow } 5219b0beaf3SJohn Snow 522797ac58cSKevin Wolf co = qemu_coroutine_create(co_write_zeroes_entry); 523797ac58cSKevin Wolf qemu_coroutine_enter(co, &data); 524797ac58cSKevin Wolf while (!data.done) { 5254c7b7e9bSMax Reitz aio_poll(blk_get_aio_context(blk), true); 526797ac58cSKevin Wolf } 527797ac58cSKevin Wolf if (data.ret < 0) { 528797ac58cSKevin Wolf return data.ret; 529797ac58cSKevin Wolf } else { 530797ac58cSKevin Wolf return 1; 531797ac58cSKevin Wolf } 532797ac58cSKevin Wolf } 533797ac58cSKevin Wolf 5344c7b7e9bSMax Reitz static int do_write_compressed(BlockBackend *blk, char *buf, int64_t offset, 5359b0beaf3SJohn Snow int64_t count, int64_t *total) 536797ac58cSKevin Wolf { 537797ac58cSKevin Wolf int ret; 538797ac58cSKevin Wolf 5399b0beaf3SJohn Snow if (count >> 9 > INT_MAX) { 5409b0beaf3SJohn Snow return -ERANGE; 5419b0beaf3SJohn Snow } 5429b0beaf3SJohn Snow 5434c7b7e9bSMax Reitz ret = blk_write_compressed(blk, offset >> 9, (uint8_t *)buf, count >> 9); 544797ac58cSKevin Wolf if (ret < 0) { 545797ac58cSKevin Wolf return ret; 546797ac58cSKevin Wolf } 547797ac58cSKevin Wolf *total = count; 548797ac58cSKevin Wolf return 1; 549797ac58cSKevin Wolf } 550797ac58cSKevin Wolf 5514c7b7e9bSMax Reitz static int do_load_vmstate(BlockBackend *blk, char *buf, int64_t offset, 5529b0beaf3SJohn Snow int64_t count, int64_t *total) 553797ac58cSKevin Wolf { 5549b0beaf3SJohn Snow if (count > INT_MAX) { 5559b0beaf3SJohn Snow return -ERANGE; 5569b0beaf3SJohn Snow } 5579b0beaf3SJohn Snow 5584c7b7e9bSMax Reitz *total = blk_load_vmstate(blk, (uint8_t *)buf, offset, count); 559797ac58cSKevin Wolf if (*total < 0) { 560797ac58cSKevin Wolf return *total; 561797ac58cSKevin Wolf } 562797ac58cSKevin Wolf return 1; 563797ac58cSKevin Wolf } 564797ac58cSKevin Wolf 5654c7b7e9bSMax Reitz static int do_save_vmstate(BlockBackend *blk, char *buf, int64_t offset, 5669b0beaf3SJohn Snow int64_t count, int64_t *total) 567797ac58cSKevin Wolf { 5689b0beaf3SJohn Snow if (count > INT_MAX) { 5699b0beaf3SJohn Snow return -ERANGE; 5709b0beaf3SJohn Snow } 5719b0beaf3SJohn Snow 5724c7b7e9bSMax Reitz *total = blk_save_vmstate(blk, (uint8_t *)buf, offset, count); 573797ac58cSKevin Wolf if (*total < 0) { 574797ac58cSKevin Wolf return *total; 575797ac58cSKevin Wolf } 576797ac58cSKevin Wolf return 1; 577797ac58cSKevin Wolf } 578797ac58cSKevin Wolf 579797ac58cSKevin Wolf #define NOT_DONE 0x7fffffff 580797ac58cSKevin Wolf static void aio_rw_done(void *opaque, int ret) 581797ac58cSKevin Wolf { 582797ac58cSKevin Wolf *(int *)opaque = ret; 583797ac58cSKevin Wolf } 584797ac58cSKevin Wolf 5854c7b7e9bSMax Reitz static int do_aio_readv(BlockBackend *blk, QEMUIOVector *qiov, 586797ac58cSKevin Wolf int64_t offset, int *total) 587797ac58cSKevin Wolf { 588797ac58cSKevin Wolf int async_ret = NOT_DONE; 589797ac58cSKevin Wolf 5904c7b7e9bSMax Reitz blk_aio_readv(blk, offset >> 9, qiov, qiov->size >> 9, 591797ac58cSKevin Wolf aio_rw_done, &async_ret); 592797ac58cSKevin Wolf while (async_ret == NOT_DONE) { 593797ac58cSKevin Wolf main_loop_wait(false); 594797ac58cSKevin Wolf } 595797ac58cSKevin Wolf 596797ac58cSKevin Wolf *total = qiov->size; 597797ac58cSKevin Wolf return async_ret < 0 ? async_ret : 1; 598797ac58cSKevin Wolf } 599797ac58cSKevin Wolf 6004c7b7e9bSMax Reitz static int do_aio_writev(BlockBackend *blk, QEMUIOVector *qiov, 601797ac58cSKevin Wolf int64_t offset, int *total) 602797ac58cSKevin Wolf { 603797ac58cSKevin Wolf int async_ret = NOT_DONE; 604797ac58cSKevin Wolf 6054c7b7e9bSMax Reitz blk_aio_writev(blk, offset >> 9, qiov, qiov->size >> 9, 606797ac58cSKevin Wolf aio_rw_done, &async_ret); 607797ac58cSKevin Wolf while (async_ret == NOT_DONE) { 608797ac58cSKevin Wolf main_loop_wait(false); 609797ac58cSKevin Wolf } 610797ac58cSKevin Wolf 611797ac58cSKevin Wolf *total = qiov->size; 612797ac58cSKevin Wolf return async_ret < 0 ? async_ret : 1; 613797ac58cSKevin Wolf } 614797ac58cSKevin Wolf 615797ac58cSKevin Wolf struct multiwrite_async_ret { 616797ac58cSKevin Wolf int num_done; 617797ac58cSKevin Wolf int error; 618797ac58cSKevin Wolf }; 619797ac58cSKevin Wolf 620797ac58cSKevin Wolf static void multiwrite_cb(void *opaque, int ret) 621797ac58cSKevin Wolf { 622797ac58cSKevin Wolf struct multiwrite_async_ret *async_ret = opaque; 623797ac58cSKevin Wolf 624797ac58cSKevin Wolf async_ret->num_done++; 625797ac58cSKevin Wolf if (ret < 0) { 626797ac58cSKevin Wolf async_ret->error = ret; 627797ac58cSKevin Wolf } 628797ac58cSKevin Wolf } 629797ac58cSKevin Wolf 6304c7b7e9bSMax Reitz static int do_aio_multiwrite(BlockBackend *blk, BlockRequest* reqs, 631797ac58cSKevin Wolf int num_reqs, int *total) 632797ac58cSKevin Wolf { 633797ac58cSKevin Wolf int i, ret; 634797ac58cSKevin Wolf struct multiwrite_async_ret async_ret = { 635797ac58cSKevin Wolf .num_done = 0, 636797ac58cSKevin Wolf .error = 0, 637797ac58cSKevin Wolf }; 638797ac58cSKevin Wolf 639797ac58cSKevin Wolf *total = 0; 640797ac58cSKevin Wolf for (i = 0; i < num_reqs; i++) { 641797ac58cSKevin Wolf reqs[i].cb = multiwrite_cb; 642797ac58cSKevin Wolf reqs[i].opaque = &async_ret; 643797ac58cSKevin Wolf *total += reqs[i].qiov->size; 644797ac58cSKevin Wolf } 645797ac58cSKevin Wolf 6464c7b7e9bSMax Reitz ret = blk_aio_multiwrite(blk, reqs, num_reqs); 647797ac58cSKevin Wolf if (ret < 0) { 648797ac58cSKevin Wolf return ret; 649797ac58cSKevin Wolf } 650797ac58cSKevin Wolf 651797ac58cSKevin Wolf while (async_ret.num_done < num_reqs) { 652797ac58cSKevin Wolf main_loop_wait(false); 653797ac58cSKevin Wolf } 654797ac58cSKevin Wolf 655797ac58cSKevin Wolf return async_ret.error < 0 ? async_ret.error : 1; 656797ac58cSKevin Wolf } 657797ac58cSKevin Wolf 658797ac58cSKevin Wolf static void read_help(void) 659797ac58cSKevin Wolf { 660797ac58cSKevin Wolf printf( 661797ac58cSKevin Wolf "\n" 662797ac58cSKevin Wolf " reads a range of bytes from the given offset\n" 663797ac58cSKevin Wolf "\n" 664797ac58cSKevin Wolf " Example:\n" 665797ac58cSKevin Wolf " 'read -v 512 1k' - dumps 1 kilobyte read from 512 bytes into the file\n" 666797ac58cSKevin Wolf "\n" 667797ac58cSKevin Wolf " Reads a segment of the currently open file, optionally dumping it to the\n" 668797ac58cSKevin Wolf " standard output stream (with -v option) for subsequent inspection.\n" 669797ac58cSKevin Wolf " -b, -- read from the VM state rather than the virtual disk\n" 670797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 671797ac58cSKevin Wolf " -l, -- length for pattern verification (only with -P)\n" 6724c7b7e9bSMax Reitz " -p, -- use blk_pread to read the file\n" 673797ac58cSKevin Wolf " -P, -- use a pattern to verify read data\n" 674797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 675797ac58cSKevin Wolf " -s, -- start offset for pattern verification (only with -P)\n" 676797ac58cSKevin Wolf " -v, -- dump buffer to standard output\n" 677797ac58cSKevin Wolf "\n"); 678797ac58cSKevin Wolf } 679797ac58cSKevin Wolf 6804c7b7e9bSMax Reitz static int read_f(BlockBackend *blk, int argc, char **argv); 681797ac58cSKevin Wolf 682797ac58cSKevin Wolf static const cmdinfo_t read_cmd = { 683797ac58cSKevin Wolf .name = "read", 684797ac58cSKevin Wolf .altname = "r", 685797ac58cSKevin Wolf .cfunc = read_f, 686797ac58cSKevin Wolf .argmin = 2, 687797ac58cSKevin Wolf .argmax = -1, 688797ac58cSKevin Wolf .args = "[-abCpqv] [-P pattern [-s off] [-l len]] off len", 689797ac58cSKevin Wolf .oneline = "reads a number of bytes at a specified offset", 690797ac58cSKevin Wolf .help = read_help, 691797ac58cSKevin Wolf }; 692797ac58cSKevin Wolf 6934c7b7e9bSMax Reitz static int read_f(BlockBackend *blk, int argc, char **argv) 694797ac58cSKevin Wolf { 695797ac58cSKevin Wolf struct timeval t1, t2; 696797ac58cSKevin Wolf int Cflag = 0, pflag = 0, qflag = 0, vflag = 0; 697797ac58cSKevin Wolf int Pflag = 0, sflag = 0, lflag = 0, bflag = 0; 698797ac58cSKevin Wolf int c, cnt; 699797ac58cSKevin Wolf char *buf; 700797ac58cSKevin Wolf int64_t offset; 7019b0beaf3SJohn Snow int64_t count; 702797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 7039b0beaf3SJohn Snow int64_t total = 0; 7049b0beaf3SJohn Snow int pattern = 0; 7059b0beaf3SJohn Snow int64_t pattern_offset = 0, pattern_count = 0; 706797ac58cSKevin Wolf 707b062ad86SEric Blake while ((c = getopt(argc, argv, "bCl:pP:qs:v")) != -1) { 708797ac58cSKevin Wolf switch (c) { 709797ac58cSKevin Wolf case 'b': 710797ac58cSKevin Wolf bflag = 1; 711797ac58cSKevin Wolf break; 712797ac58cSKevin Wolf case 'C': 713797ac58cSKevin Wolf Cflag = 1; 714797ac58cSKevin Wolf break; 715797ac58cSKevin Wolf case 'l': 716797ac58cSKevin Wolf lflag = 1; 717797ac58cSKevin Wolf pattern_count = cvtnum(optarg); 718797ac58cSKevin Wolf if (pattern_count < 0) { 719a9ecfa00SJohn Snow print_cvtnum_err(pattern_count, optarg); 720797ac58cSKevin Wolf return 0; 721797ac58cSKevin Wolf } 722797ac58cSKevin Wolf break; 723797ac58cSKevin Wolf case 'p': 724797ac58cSKevin Wolf pflag = 1; 725797ac58cSKevin Wolf break; 726797ac58cSKevin Wolf case 'P': 727797ac58cSKevin Wolf Pflag = 1; 728797ac58cSKevin Wolf pattern = parse_pattern(optarg); 729797ac58cSKevin Wolf if (pattern < 0) { 730797ac58cSKevin Wolf return 0; 731797ac58cSKevin Wolf } 732797ac58cSKevin Wolf break; 733797ac58cSKevin Wolf case 'q': 734797ac58cSKevin Wolf qflag = 1; 735797ac58cSKevin Wolf break; 736797ac58cSKevin Wolf case 's': 737797ac58cSKevin Wolf sflag = 1; 738797ac58cSKevin Wolf pattern_offset = cvtnum(optarg); 739797ac58cSKevin Wolf if (pattern_offset < 0) { 740a9ecfa00SJohn Snow print_cvtnum_err(pattern_offset, optarg); 741797ac58cSKevin Wolf return 0; 742797ac58cSKevin Wolf } 743797ac58cSKevin Wolf break; 744797ac58cSKevin Wolf case 'v': 745797ac58cSKevin Wolf vflag = 1; 746797ac58cSKevin Wolf break; 747797ac58cSKevin Wolf default: 748c2cdf5c5SKevin Wolf return qemuio_command_usage(&read_cmd); 749797ac58cSKevin Wolf } 750797ac58cSKevin Wolf } 751797ac58cSKevin Wolf 752797ac58cSKevin Wolf if (optind != argc - 2) { 753c2cdf5c5SKevin Wolf return qemuio_command_usage(&read_cmd); 754797ac58cSKevin Wolf } 755797ac58cSKevin Wolf 756797ac58cSKevin Wolf if (bflag && pflag) { 757797ac58cSKevin Wolf printf("-b and -p cannot be specified at the same time\n"); 758797ac58cSKevin Wolf return 0; 759797ac58cSKevin Wolf } 760797ac58cSKevin Wolf 761797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 762797ac58cSKevin Wolf if (offset < 0) { 763a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[optind]); 764797ac58cSKevin Wolf return 0; 765797ac58cSKevin Wolf } 766797ac58cSKevin Wolf 767797ac58cSKevin Wolf optind++; 768797ac58cSKevin Wolf count = cvtnum(argv[optind]); 769797ac58cSKevin Wolf if (count < 0) { 770a9ecfa00SJohn Snow print_cvtnum_err(count, argv[optind]); 771797ac58cSKevin Wolf return 0; 7729b0beaf3SJohn Snow } else if (count > SIZE_MAX) { 7739b0beaf3SJohn Snow printf("length cannot exceed %" PRIu64 ", given %s\n", 7749b0beaf3SJohn Snow (uint64_t) SIZE_MAX, argv[optind]); 7759b0beaf3SJohn Snow return 0; 776797ac58cSKevin Wolf } 777797ac58cSKevin Wolf 778797ac58cSKevin Wolf if (!Pflag && (lflag || sflag)) { 779c2cdf5c5SKevin Wolf return qemuio_command_usage(&read_cmd); 780797ac58cSKevin Wolf } 781797ac58cSKevin Wolf 782797ac58cSKevin Wolf if (!lflag) { 783797ac58cSKevin Wolf pattern_count = count - pattern_offset; 784797ac58cSKevin Wolf } 785797ac58cSKevin Wolf 786797ac58cSKevin Wolf if ((pattern_count < 0) || (pattern_count + pattern_offset > count)) { 787797ac58cSKevin Wolf printf("pattern verification range exceeds end of read data\n"); 788797ac58cSKevin Wolf return 0; 789797ac58cSKevin Wolf } 790797ac58cSKevin Wolf 791797ac58cSKevin Wolf if (!pflag) { 792797ac58cSKevin Wolf if (offset & 0x1ff) { 793797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 794797ac58cSKevin Wolf offset); 795797ac58cSKevin Wolf return 0; 796797ac58cSKevin Wolf } 797797ac58cSKevin Wolf if (count & 0x1ff) { 7989b0beaf3SJohn Snow printf("count %"PRId64" is not sector aligned\n", 799797ac58cSKevin Wolf count); 800797ac58cSKevin Wolf return 0; 801797ac58cSKevin Wolf } 802797ac58cSKevin Wolf } 803797ac58cSKevin Wolf 8044c7b7e9bSMax Reitz buf = qemu_io_alloc(blk, count, 0xab); 805797ac58cSKevin Wolf 806797ac58cSKevin Wolf gettimeofday(&t1, NULL); 807797ac58cSKevin Wolf if (pflag) { 8084c7b7e9bSMax Reitz cnt = do_pread(blk, buf, offset, count, &total); 809797ac58cSKevin Wolf } else if (bflag) { 8104c7b7e9bSMax Reitz cnt = do_load_vmstate(blk, buf, offset, count, &total); 811797ac58cSKevin Wolf } else { 8124c7b7e9bSMax Reitz cnt = do_read(blk, buf, offset, count, &total); 813797ac58cSKevin Wolf } 814797ac58cSKevin Wolf gettimeofday(&t2, NULL); 815797ac58cSKevin Wolf 816797ac58cSKevin Wolf if (cnt < 0) { 817797ac58cSKevin Wolf printf("read failed: %s\n", strerror(-cnt)); 818797ac58cSKevin Wolf goto out; 819797ac58cSKevin Wolf } 820797ac58cSKevin Wolf 821797ac58cSKevin Wolf if (Pflag) { 822797ac58cSKevin Wolf void *cmp_buf = g_malloc(pattern_count); 823797ac58cSKevin Wolf memset(cmp_buf, pattern, pattern_count); 824797ac58cSKevin Wolf if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) { 825797ac58cSKevin Wolf printf("Pattern verification failed at offset %" 8269b0beaf3SJohn Snow PRId64 ", %"PRId64" bytes\n", 827797ac58cSKevin Wolf offset + pattern_offset, pattern_count); 828797ac58cSKevin Wolf } 829797ac58cSKevin Wolf g_free(cmp_buf); 830797ac58cSKevin Wolf } 831797ac58cSKevin Wolf 832797ac58cSKevin Wolf if (qflag) { 833797ac58cSKevin Wolf goto out; 834797ac58cSKevin Wolf } 835797ac58cSKevin Wolf 836797ac58cSKevin Wolf if (vflag) { 837797ac58cSKevin Wolf dump_buffer(buf, offset, count); 838797ac58cSKevin Wolf } 839797ac58cSKevin Wolf 840797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 841797ac58cSKevin Wolf t2 = tsub(t2, t1); 842797ac58cSKevin Wolf print_report("read", &t2, offset, count, total, cnt, Cflag); 843797ac58cSKevin Wolf 844797ac58cSKevin Wolf out: 845797ac58cSKevin Wolf qemu_io_free(buf); 846797ac58cSKevin Wolf 847797ac58cSKevin Wolf return 0; 848797ac58cSKevin Wolf } 849797ac58cSKevin Wolf 850797ac58cSKevin Wolf static void readv_help(void) 851797ac58cSKevin Wolf { 852797ac58cSKevin Wolf printf( 853797ac58cSKevin Wolf "\n" 854797ac58cSKevin Wolf " reads a range of bytes from the given offset into multiple buffers\n" 855797ac58cSKevin Wolf "\n" 856797ac58cSKevin Wolf " Example:\n" 857797ac58cSKevin Wolf " 'readv -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" 858797ac58cSKevin Wolf "\n" 859797ac58cSKevin Wolf " Reads a segment of the currently open file, optionally dumping it to the\n" 860797ac58cSKevin Wolf " standard output stream (with -v option) for subsequent inspection.\n" 861797ac58cSKevin Wolf " Uses multiple iovec buffers if more than one byte range is specified.\n" 862797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 863797ac58cSKevin Wolf " -P, -- use a pattern to verify read data\n" 864797ac58cSKevin Wolf " -v, -- dump buffer to standard output\n" 865797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 866797ac58cSKevin Wolf "\n"); 867797ac58cSKevin Wolf } 868797ac58cSKevin Wolf 8694c7b7e9bSMax Reitz static int readv_f(BlockBackend *blk, int argc, char **argv); 870797ac58cSKevin Wolf 871797ac58cSKevin Wolf static const cmdinfo_t readv_cmd = { 872797ac58cSKevin Wolf .name = "readv", 873797ac58cSKevin Wolf .cfunc = readv_f, 874797ac58cSKevin Wolf .argmin = 2, 875797ac58cSKevin Wolf .argmax = -1, 876797ac58cSKevin Wolf .args = "[-Cqv] [-P pattern ] off len [len..]", 877797ac58cSKevin Wolf .oneline = "reads a number of bytes at a specified offset", 878797ac58cSKevin Wolf .help = readv_help, 879797ac58cSKevin Wolf }; 880797ac58cSKevin Wolf 8814c7b7e9bSMax Reitz static int readv_f(BlockBackend *blk, int argc, char **argv) 882797ac58cSKevin Wolf { 883797ac58cSKevin Wolf struct timeval t1, t2; 884797ac58cSKevin Wolf int Cflag = 0, qflag = 0, vflag = 0; 885797ac58cSKevin Wolf int c, cnt; 886797ac58cSKevin Wolf char *buf; 887797ac58cSKevin Wolf int64_t offset; 888797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 889797ac58cSKevin Wolf int total = 0; 890797ac58cSKevin Wolf int nr_iov; 891797ac58cSKevin Wolf QEMUIOVector qiov; 892797ac58cSKevin Wolf int pattern = 0; 893797ac58cSKevin Wolf int Pflag = 0; 894797ac58cSKevin Wolf 895b062ad86SEric Blake while ((c = getopt(argc, argv, "CP:qv")) != -1) { 896797ac58cSKevin Wolf switch (c) { 897797ac58cSKevin Wolf case 'C': 898797ac58cSKevin Wolf Cflag = 1; 899797ac58cSKevin Wolf break; 900797ac58cSKevin Wolf case 'P': 901797ac58cSKevin Wolf Pflag = 1; 902797ac58cSKevin Wolf pattern = parse_pattern(optarg); 903797ac58cSKevin Wolf if (pattern < 0) { 904797ac58cSKevin Wolf return 0; 905797ac58cSKevin Wolf } 906797ac58cSKevin Wolf break; 907797ac58cSKevin Wolf case 'q': 908797ac58cSKevin Wolf qflag = 1; 909797ac58cSKevin Wolf break; 910797ac58cSKevin Wolf case 'v': 911797ac58cSKevin Wolf vflag = 1; 912797ac58cSKevin Wolf break; 913797ac58cSKevin Wolf default: 914c2cdf5c5SKevin Wolf return qemuio_command_usage(&readv_cmd); 915797ac58cSKevin Wolf } 916797ac58cSKevin Wolf } 917797ac58cSKevin Wolf 918797ac58cSKevin Wolf if (optind > argc - 2) { 919c2cdf5c5SKevin Wolf return qemuio_command_usage(&readv_cmd); 920797ac58cSKevin Wolf } 921797ac58cSKevin Wolf 922797ac58cSKevin Wolf 923797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 924797ac58cSKevin Wolf if (offset < 0) { 925a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[optind]); 926797ac58cSKevin Wolf return 0; 927797ac58cSKevin Wolf } 928797ac58cSKevin Wolf optind++; 929797ac58cSKevin Wolf 930797ac58cSKevin Wolf if (offset & 0x1ff) { 931797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 932797ac58cSKevin Wolf offset); 933797ac58cSKevin Wolf return 0; 934797ac58cSKevin Wolf } 935797ac58cSKevin Wolf 936797ac58cSKevin Wolf nr_iov = argc - optind; 9374c7b7e9bSMax Reitz buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, 0xab); 938797ac58cSKevin Wolf if (buf == NULL) { 939797ac58cSKevin Wolf return 0; 940797ac58cSKevin Wolf } 941797ac58cSKevin Wolf 942797ac58cSKevin Wolf gettimeofday(&t1, NULL); 9434c7b7e9bSMax Reitz cnt = do_aio_readv(blk, &qiov, offset, &total); 944797ac58cSKevin Wolf gettimeofday(&t2, NULL); 945797ac58cSKevin Wolf 946797ac58cSKevin Wolf if (cnt < 0) { 947797ac58cSKevin Wolf printf("readv failed: %s\n", strerror(-cnt)); 948797ac58cSKevin Wolf goto out; 949797ac58cSKevin Wolf } 950797ac58cSKevin Wolf 951797ac58cSKevin Wolf if (Pflag) { 952797ac58cSKevin Wolf void *cmp_buf = g_malloc(qiov.size); 953797ac58cSKevin Wolf memset(cmp_buf, pattern, qiov.size); 954797ac58cSKevin Wolf if (memcmp(buf, cmp_buf, qiov.size)) { 955797ac58cSKevin Wolf printf("Pattern verification failed at offset %" 956797ac58cSKevin Wolf PRId64 ", %zd bytes\n", offset, qiov.size); 957797ac58cSKevin Wolf } 958797ac58cSKevin Wolf g_free(cmp_buf); 959797ac58cSKevin Wolf } 960797ac58cSKevin Wolf 961797ac58cSKevin Wolf if (qflag) { 962797ac58cSKevin Wolf goto out; 963797ac58cSKevin Wolf } 964797ac58cSKevin Wolf 965797ac58cSKevin Wolf if (vflag) { 966797ac58cSKevin Wolf dump_buffer(buf, offset, qiov.size); 967797ac58cSKevin Wolf } 968797ac58cSKevin Wolf 969797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 970797ac58cSKevin Wolf t2 = tsub(t2, t1); 971797ac58cSKevin Wolf print_report("read", &t2, offset, qiov.size, total, cnt, Cflag); 972797ac58cSKevin Wolf 973797ac58cSKevin Wolf out: 974797ac58cSKevin Wolf qemu_iovec_destroy(&qiov); 975797ac58cSKevin Wolf qemu_io_free(buf); 976797ac58cSKevin Wolf return 0; 977797ac58cSKevin Wolf } 978797ac58cSKevin Wolf 979797ac58cSKevin Wolf static void write_help(void) 980797ac58cSKevin Wolf { 981797ac58cSKevin Wolf printf( 982797ac58cSKevin Wolf "\n" 983797ac58cSKevin Wolf " writes a range of bytes from the given offset\n" 984797ac58cSKevin Wolf "\n" 985797ac58cSKevin Wolf " Example:\n" 986797ac58cSKevin Wolf " 'write 512 1k' - writes 1 kilobyte at 512 bytes into the open file\n" 987797ac58cSKevin Wolf "\n" 988797ac58cSKevin Wolf " Writes into a segment of the currently open file, using a buffer\n" 989797ac58cSKevin Wolf " filled with a set pattern (0xcdcdcdcd).\n" 990797ac58cSKevin Wolf " -b, -- write to the VM state rather than the virtual disk\n" 9914c7b7e9bSMax Reitz " -c, -- write compressed data with blk_write_compressed\n" 9924c7b7e9bSMax Reitz " -p, -- use blk_pwrite to write the file\n" 993797ac58cSKevin Wolf " -P, -- use different pattern to fill file\n" 994797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 995797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 9964c7b7e9bSMax Reitz " -z, -- write zeroes using blk_co_write_zeroes\n" 997797ac58cSKevin Wolf "\n"); 998797ac58cSKevin Wolf } 999797ac58cSKevin Wolf 10004c7b7e9bSMax Reitz static int write_f(BlockBackend *blk, int argc, char **argv); 1001797ac58cSKevin Wolf 1002797ac58cSKevin Wolf static const cmdinfo_t write_cmd = { 1003797ac58cSKevin Wolf .name = "write", 1004797ac58cSKevin Wolf .altname = "w", 1005797ac58cSKevin Wolf .cfunc = write_f, 1006797ac58cSKevin Wolf .argmin = 2, 1007797ac58cSKevin Wolf .argmax = -1, 1008797ac58cSKevin Wolf .args = "[-bcCpqz] [-P pattern ] off len", 1009797ac58cSKevin Wolf .oneline = "writes a number of bytes at a specified offset", 1010797ac58cSKevin Wolf .help = write_help, 1011797ac58cSKevin Wolf }; 1012797ac58cSKevin Wolf 10134c7b7e9bSMax Reitz static int write_f(BlockBackend *blk, int argc, char **argv) 1014797ac58cSKevin Wolf { 1015797ac58cSKevin Wolf struct timeval t1, t2; 1016797ac58cSKevin Wolf int Cflag = 0, pflag = 0, qflag = 0, bflag = 0, Pflag = 0, zflag = 0; 1017797ac58cSKevin Wolf int cflag = 0; 1018797ac58cSKevin Wolf int c, cnt; 1019797ac58cSKevin Wolf char *buf = NULL; 1020797ac58cSKevin Wolf int64_t offset; 10219b0beaf3SJohn Snow int64_t count; 1022797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 10239b0beaf3SJohn Snow int64_t total = 0; 1024797ac58cSKevin Wolf int pattern = 0xcd; 1025797ac58cSKevin Wolf 1026b062ad86SEric Blake while ((c = getopt(argc, argv, "bcCpP:qz")) != -1) { 1027797ac58cSKevin Wolf switch (c) { 1028797ac58cSKevin Wolf case 'b': 1029797ac58cSKevin Wolf bflag = 1; 1030797ac58cSKevin Wolf break; 1031797ac58cSKevin Wolf case 'c': 1032797ac58cSKevin Wolf cflag = 1; 1033797ac58cSKevin Wolf break; 1034797ac58cSKevin Wolf case 'C': 1035797ac58cSKevin Wolf Cflag = 1; 1036797ac58cSKevin Wolf break; 1037797ac58cSKevin Wolf case 'p': 1038797ac58cSKevin Wolf pflag = 1; 1039797ac58cSKevin Wolf break; 1040797ac58cSKevin Wolf case 'P': 1041797ac58cSKevin Wolf Pflag = 1; 1042797ac58cSKevin Wolf pattern = parse_pattern(optarg); 1043797ac58cSKevin Wolf if (pattern < 0) { 1044797ac58cSKevin Wolf return 0; 1045797ac58cSKevin Wolf } 1046797ac58cSKevin Wolf break; 1047797ac58cSKevin Wolf case 'q': 1048797ac58cSKevin Wolf qflag = 1; 1049797ac58cSKevin Wolf break; 1050797ac58cSKevin Wolf case 'z': 1051797ac58cSKevin Wolf zflag = 1; 1052797ac58cSKevin Wolf break; 1053797ac58cSKevin Wolf default: 1054c2cdf5c5SKevin Wolf return qemuio_command_usage(&write_cmd); 1055797ac58cSKevin Wolf } 1056797ac58cSKevin Wolf } 1057797ac58cSKevin Wolf 1058797ac58cSKevin Wolf if (optind != argc - 2) { 1059c2cdf5c5SKevin Wolf return qemuio_command_usage(&write_cmd); 1060797ac58cSKevin Wolf } 1061797ac58cSKevin Wolf 1062797ac58cSKevin Wolf if (bflag + pflag + zflag > 1) { 1063797ac58cSKevin Wolf printf("-b, -p, or -z cannot be specified at the same time\n"); 1064797ac58cSKevin Wolf return 0; 1065797ac58cSKevin Wolf } 1066797ac58cSKevin Wolf 1067797ac58cSKevin Wolf if (zflag && Pflag) { 1068797ac58cSKevin Wolf printf("-z and -P cannot be specified at the same time\n"); 1069797ac58cSKevin Wolf return 0; 1070797ac58cSKevin Wolf } 1071797ac58cSKevin Wolf 1072797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 1073797ac58cSKevin Wolf if (offset < 0) { 1074a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[optind]); 1075797ac58cSKevin Wolf return 0; 1076797ac58cSKevin Wolf } 1077797ac58cSKevin Wolf 1078797ac58cSKevin Wolf optind++; 1079797ac58cSKevin Wolf count = cvtnum(argv[optind]); 1080797ac58cSKevin Wolf if (count < 0) { 1081a9ecfa00SJohn Snow print_cvtnum_err(count, argv[optind]); 1082797ac58cSKevin Wolf return 0; 10839b0beaf3SJohn Snow } else if (count > SIZE_MAX) { 10849b0beaf3SJohn Snow printf("length cannot exceed %" PRIu64 ", given %s\n", 10859b0beaf3SJohn Snow (uint64_t) SIZE_MAX, argv[optind]); 10869b0beaf3SJohn Snow return 0; 1087797ac58cSKevin Wolf } 1088797ac58cSKevin Wolf 1089797ac58cSKevin Wolf if (!pflag) { 1090797ac58cSKevin Wolf if (offset & 0x1ff) { 1091797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1092797ac58cSKevin Wolf offset); 1093797ac58cSKevin Wolf return 0; 1094797ac58cSKevin Wolf } 1095797ac58cSKevin Wolf 1096797ac58cSKevin Wolf if (count & 0x1ff) { 10979b0beaf3SJohn Snow printf("count %"PRId64" is not sector aligned\n", 1098797ac58cSKevin Wolf count); 1099797ac58cSKevin Wolf return 0; 1100797ac58cSKevin Wolf } 1101797ac58cSKevin Wolf } 1102797ac58cSKevin Wolf 1103797ac58cSKevin Wolf if (!zflag) { 11044c7b7e9bSMax Reitz buf = qemu_io_alloc(blk, count, pattern); 1105797ac58cSKevin Wolf } 1106797ac58cSKevin Wolf 1107797ac58cSKevin Wolf gettimeofday(&t1, NULL); 1108797ac58cSKevin Wolf if (pflag) { 11094c7b7e9bSMax Reitz cnt = do_pwrite(blk, buf, offset, count, &total); 1110797ac58cSKevin Wolf } else if (bflag) { 11114c7b7e9bSMax Reitz cnt = do_save_vmstate(blk, buf, offset, count, &total); 1112797ac58cSKevin Wolf } else if (zflag) { 11134c7b7e9bSMax Reitz cnt = do_co_write_zeroes(blk, offset, count, &total); 1114797ac58cSKevin Wolf } else if (cflag) { 11154c7b7e9bSMax Reitz cnt = do_write_compressed(blk, buf, offset, count, &total); 1116797ac58cSKevin Wolf } else { 11174c7b7e9bSMax Reitz cnt = do_write(blk, buf, offset, count, &total); 1118797ac58cSKevin Wolf } 1119797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1120797ac58cSKevin Wolf 1121797ac58cSKevin Wolf if (cnt < 0) { 1122797ac58cSKevin Wolf printf("write failed: %s\n", strerror(-cnt)); 1123797ac58cSKevin Wolf goto out; 1124797ac58cSKevin Wolf } 1125797ac58cSKevin Wolf 1126797ac58cSKevin Wolf if (qflag) { 1127797ac58cSKevin Wolf goto out; 1128797ac58cSKevin Wolf } 1129797ac58cSKevin Wolf 1130797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1131797ac58cSKevin Wolf t2 = tsub(t2, t1); 1132797ac58cSKevin Wolf print_report("wrote", &t2, offset, count, total, cnt, Cflag); 1133797ac58cSKevin Wolf 1134797ac58cSKevin Wolf out: 1135797ac58cSKevin Wolf if (!zflag) { 1136797ac58cSKevin Wolf qemu_io_free(buf); 1137797ac58cSKevin Wolf } 1138797ac58cSKevin Wolf 1139797ac58cSKevin Wolf return 0; 1140797ac58cSKevin Wolf } 1141797ac58cSKevin Wolf 1142797ac58cSKevin Wolf static void 1143797ac58cSKevin Wolf writev_help(void) 1144797ac58cSKevin Wolf { 1145797ac58cSKevin Wolf printf( 1146797ac58cSKevin Wolf "\n" 1147797ac58cSKevin Wolf " writes a range of bytes from the given offset source from multiple buffers\n" 1148797ac58cSKevin Wolf "\n" 1149797ac58cSKevin Wolf " Example:\n" 11506e6507c0SMaria Kustova " 'writev 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" 1151797ac58cSKevin Wolf "\n" 1152797ac58cSKevin Wolf " Writes into a segment of the currently open file, using a buffer\n" 1153797ac58cSKevin Wolf " filled with a set pattern (0xcdcdcdcd).\n" 1154797ac58cSKevin Wolf " -P, -- use different pattern to fill file\n" 1155797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1156797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1157797ac58cSKevin Wolf "\n"); 1158797ac58cSKevin Wolf } 1159797ac58cSKevin Wolf 11604c7b7e9bSMax Reitz static int writev_f(BlockBackend *blk, int argc, char **argv); 1161797ac58cSKevin Wolf 1162797ac58cSKevin Wolf static const cmdinfo_t writev_cmd = { 1163797ac58cSKevin Wolf .name = "writev", 1164797ac58cSKevin Wolf .cfunc = writev_f, 1165797ac58cSKevin Wolf .argmin = 2, 1166797ac58cSKevin Wolf .argmax = -1, 1167797ac58cSKevin Wolf .args = "[-Cq] [-P pattern ] off len [len..]", 1168797ac58cSKevin Wolf .oneline = "writes a number of bytes at a specified offset", 1169797ac58cSKevin Wolf .help = writev_help, 1170797ac58cSKevin Wolf }; 1171797ac58cSKevin Wolf 11724c7b7e9bSMax Reitz static int writev_f(BlockBackend *blk, int argc, char **argv) 1173797ac58cSKevin Wolf { 1174797ac58cSKevin Wolf struct timeval t1, t2; 1175797ac58cSKevin Wolf int Cflag = 0, qflag = 0; 1176797ac58cSKevin Wolf int c, cnt; 1177797ac58cSKevin Wolf char *buf; 1178797ac58cSKevin Wolf int64_t offset; 1179797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 1180797ac58cSKevin Wolf int total = 0; 1181797ac58cSKevin Wolf int nr_iov; 1182797ac58cSKevin Wolf int pattern = 0xcd; 1183797ac58cSKevin Wolf QEMUIOVector qiov; 1184797ac58cSKevin Wolf 1185b062ad86SEric Blake while ((c = getopt(argc, argv, "CqP:")) != -1) { 1186797ac58cSKevin Wolf switch (c) { 1187797ac58cSKevin Wolf case 'C': 1188797ac58cSKevin Wolf Cflag = 1; 1189797ac58cSKevin Wolf break; 1190797ac58cSKevin Wolf case 'q': 1191797ac58cSKevin Wolf qflag = 1; 1192797ac58cSKevin Wolf break; 1193797ac58cSKevin Wolf case 'P': 1194797ac58cSKevin Wolf pattern = parse_pattern(optarg); 1195797ac58cSKevin Wolf if (pattern < 0) { 1196797ac58cSKevin Wolf return 0; 1197797ac58cSKevin Wolf } 1198797ac58cSKevin Wolf break; 1199797ac58cSKevin Wolf default: 1200c2cdf5c5SKevin Wolf return qemuio_command_usage(&writev_cmd); 1201797ac58cSKevin Wolf } 1202797ac58cSKevin Wolf } 1203797ac58cSKevin Wolf 1204797ac58cSKevin Wolf if (optind > argc - 2) { 1205c2cdf5c5SKevin Wolf return qemuio_command_usage(&writev_cmd); 1206797ac58cSKevin Wolf } 1207797ac58cSKevin Wolf 1208797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 1209797ac58cSKevin Wolf if (offset < 0) { 1210a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[optind]); 1211797ac58cSKevin Wolf return 0; 1212797ac58cSKevin Wolf } 1213797ac58cSKevin Wolf optind++; 1214797ac58cSKevin Wolf 1215797ac58cSKevin Wolf if (offset & 0x1ff) { 1216797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1217797ac58cSKevin Wolf offset); 1218797ac58cSKevin Wolf return 0; 1219797ac58cSKevin Wolf } 1220797ac58cSKevin Wolf 1221797ac58cSKevin Wolf nr_iov = argc - optind; 12224c7b7e9bSMax Reitz buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, pattern); 1223797ac58cSKevin Wolf if (buf == NULL) { 1224797ac58cSKevin Wolf return 0; 1225797ac58cSKevin Wolf } 1226797ac58cSKevin Wolf 1227797ac58cSKevin Wolf gettimeofday(&t1, NULL); 12284c7b7e9bSMax Reitz cnt = do_aio_writev(blk, &qiov, offset, &total); 1229797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1230797ac58cSKevin Wolf 1231797ac58cSKevin Wolf if (cnt < 0) { 1232797ac58cSKevin Wolf printf("writev failed: %s\n", strerror(-cnt)); 1233797ac58cSKevin Wolf goto out; 1234797ac58cSKevin Wolf } 1235797ac58cSKevin Wolf 1236797ac58cSKevin Wolf if (qflag) { 1237797ac58cSKevin Wolf goto out; 1238797ac58cSKevin Wolf } 1239797ac58cSKevin Wolf 1240797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1241797ac58cSKevin Wolf t2 = tsub(t2, t1); 1242797ac58cSKevin Wolf print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag); 1243797ac58cSKevin Wolf out: 1244797ac58cSKevin Wolf qemu_iovec_destroy(&qiov); 1245797ac58cSKevin Wolf qemu_io_free(buf); 1246797ac58cSKevin Wolf return 0; 1247797ac58cSKevin Wolf } 1248797ac58cSKevin Wolf 1249797ac58cSKevin Wolf static void multiwrite_help(void) 1250797ac58cSKevin Wolf { 1251797ac58cSKevin Wolf printf( 1252797ac58cSKevin Wolf "\n" 1253797ac58cSKevin Wolf " writes a range of bytes from the given offset source from multiple buffers,\n" 1254797ac58cSKevin Wolf " in a batch of requests that may be merged by qemu\n" 1255797ac58cSKevin Wolf "\n" 1256797ac58cSKevin Wolf " Example:\n" 1257797ac58cSKevin Wolf " 'multiwrite 512 1k 1k ; 4k 1k'\n" 1258797ac58cSKevin Wolf " writes 2 kB at 512 bytes and 1 kB at 4 kB into the open file\n" 1259797ac58cSKevin Wolf "\n" 1260797ac58cSKevin Wolf " Writes into a segment of the currently open file, using a buffer\n" 1261797ac58cSKevin Wolf " filled with a set pattern (0xcdcdcdcd). The pattern byte is increased\n" 1262797ac58cSKevin Wolf " by one for each request contained in the multiwrite command.\n" 1263797ac58cSKevin Wolf " -P, -- use different pattern to fill file\n" 1264797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1265797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1266797ac58cSKevin Wolf "\n"); 1267797ac58cSKevin Wolf } 1268797ac58cSKevin Wolf 12694c7b7e9bSMax Reitz static int multiwrite_f(BlockBackend *blk, int argc, char **argv); 1270797ac58cSKevin Wolf 1271797ac58cSKevin Wolf static const cmdinfo_t multiwrite_cmd = { 1272797ac58cSKevin Wolf .name = "multiwrite", 1273797ac58cSKevin Wolf .cfunc = multiwrite_f, 1274797ac58cSKevin Wolf .argmin = 2, 1275797ac58cSKevin Wolf .argmax = -1, 1276797ac58cSKevin Wolf .args = "[-Cq] [-P pattern ] off len [len..] [; off len [len..]..]", 1277797ac58cSKevin Wolf .oneline = "issues multiple write requests at once", 1278797ac58cSKevin Wolf .help = multiwrite_help, 1279797ac58cSKevin Wolf }; 1280797ac58cSKevin Wolf 12814c7b7e9bSMax Reitz static int multiwrite_f(BlockBackend *blk, int argc, char **argv) 1282797ac58cSKevin Wolf { 1283797ac58cSKevin Wolf struct timeval t1, t2; 1284797ac58cSKevin Wolf int Cflag = 0, qflag = 0; 1285797ac58cSKevin Wolf int c, cnt; 1286797ac58cSKevin Wolf char **buf; 1287797ac58cSKevin Wolf int64_t offset, first_offset = 0; 1288797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 1289797ac58cSKevin Wolf int total = 0; 1290797ac58cSKevin Wolf int nr_iov; 1291797ac58cSKevin Wolf int nr_reqs; 1292797ac58cSKevin Wolf int pattern = 0xcd; 1293797ac58cSKevin Wolf QEMUIOVector *qiovs; 1294797ac58cSKevin Wolf int i; 1295797ac58cSKevin Wolf BlockRequest *reqs; 1296797ac58cSKevin Wolf 1297b062ad86SEric Blake while ((c = getopt(argc, argv, "CqP:")) != -1) { 1298797ac58cSKevin Wolf switch (c) { 1299797ac58cSKevin Wolf case 'C': 1300797ac58cSKevin Wolf Cflag = 1; 1301797ac58cSKevin Wolf break; 1302797ac58cSKevin Wolf case 'q': 1303797ac58cSKevin Wolf qflag = 1; 1304797ac58cSKevin Wolf break; 1305797ac58cSKevin Wolf case 'P': 1306797ac58cSKevin Wolf pattern = parse_pattern(optarg); 1307797ac58cSKevin Wolf if (pattern < 0) { 1308797ac58cSKevin Wolf return 0; 1309797ac58cSKevin Wolf } 1310797ac58cSKevin Wolf break; 1311797ac58cSKevin Wolf default: 1312c2cdf5c5SKevin Wolf return qemuio_command_usage(&writev_cmd); 1313797ac58cSKevin Wolf } 1314797ac58cSKevin Wolf } 1315797ac58cSKevin Wolf 1316797ac58cSKevin Wolf if (optind > argc - 2) { 1317c2cdf5c5SKevin Wolf return qemuio_command_usage(&writev_cmd); 1318797ac58cSKevin Wolf } 1319797ac58cSKevin Wolf 1320797ac58cSKevin Wolf nr_reqs = 1; 1321797ac58cSKevin Wolf for (i = optind; i < argc; i++) { 1322797ac58cSKevin Wolf if (!strcmp(argv[i], ";")) { 1323797ac58cSKevin Wolf nr_reqs++; 1324797ac58cSKevin Wolf } 1325797ac58cSKevin Wolf } 1326797ac58cSKevin Wolf 132702c4f26bSMarkus Armbruster reqs = g_new0(BlockRequest, nr_reqs); 132802c4f26bSMarkus Armbruster buf = g_new0(char *, nr_reqs); 132902c4f26bSMarkus Armbruster qiovs = g_new(QEMUIOVector, nr_reqs); 1330797ac58cSKevin Wolf 1331797ac58cSKevin Wolf for (i = 0; i < nr_reqs && optind < argc; i++) { 1332797ac58cSKevin Wolf int j; 1333797ac58cSKevin Wolf 1334797ac58cSKevin Wolf /* Read the offset of the request */ 1335797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 1336797ac58cSKevin Wolf if (offset < 0) { 1337a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[optind]); 1338797ac58cSKevin Wolf goto out; 1339797ac58cSKevin Wolf } 1340797ac58cSKevin Wolf optind++; 1341797ac58cSKevin Wolf 1342797ac58cSKevin Wolf if (offset & 0x1ff) { 1343797ac58cSKevin Wolf printf("offset %lld is not sector aligned\n", 1344797ac58cSKevin Wolf (long long)offset); 1345797ac58cSKevin Wolf goto out; 1346797ac58cSKevin Wolf } 1347797ac58cSKevin Wolf 1348797ac58cSKevin Wolf if (i == 0) { 1349797ac58cSKevin Wolf first_offset = offset; 1350797ac58cSKevin Wolf } 1351797ac58cSKevin Wolf 1352797ac58cSKevin Wolf /* Read lengths for qiov entries */ 1353797ac58cSKevin Wolf for (j = optind; j < argc; j++) { 1354797ac58cSKevin Wolf if (!strcmp(argv[j], ";")) { 1355797ac58cSKevin Wolf break; 1356797ac58cSKevin Wolf } 1357797ac58cSKevin Wolf } 1358797ac58cSKevin Wolf 1359797ac58cSKevin Wolf nr_iov = j - optind; 1360797ac58cSKevin Wolf 1361797ac58cSKevin Wolf /* Build request */ 13624c7b7e9bSMax Reitz buf[i] = create_iovec(blk, &qiovs[i], &argv[optind], nr_iov, pattern); 1363797ac58cSKevin Wolf if (buf[i] == NULL) { 1364797ac58cSKevin Wolf goto out; 1365797ac58cSKevin Wolf } 1366797ac58cSKevin Wolf 1367797ac58cSKevin Wolf reqs[i].qiov = &qiovs[i]; 1368797ac58cSKevin Wolf reqs[i].sector = offset >> 9; 1369797ac58cSKevin Wolf reqs[i].nb_sectors = reqs[i].qiov->size >> 9; 1370797ac58cSKevin Wolf 1371797ac58cSKevin Wolf optind = j + 1; 1372797ac58cSKevin Wolf 1373797ac58cSKevin Wolf pattern++; 1374797ac58cSKevin Wolf } 1375797ac58cSKevin Wolf 1376797ac58cSKevin Wolf /* If there were empty requests at the end, ignore them */ 1377797ac58cSKevin Wolf nr_reqs = i; 1378797ac58cSKevin Wolf 1379797ac58cSKevin Wolf gettimeofday(&t1, NULL); 13804c7b7e9bSMax Reitz cnt = do_aio_multiwrite(blk, reqs, nr_reqs, &total); 1381797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1382797ac58cSKevin Wolf 1383797ac58cSKevin Wolf if (cnt < 0) { 1384797ac58cSKevin Wolf printf("aio_multiwrite failed: %s\n", strerror(-cnt)); 1385797ac58cSKevin Wolf goto out; 1386797ac58cSKevin Wolf } 1387797ac58cSKevin Wolf 1388797ac58cSKevin Wolf if (qflag) { 1389797ac58cSKevin Wolf goto out; 1390797ac58cSKevin Wolf } 1391797ac58cSKevin Wolf 1392797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1393797ac58cSKevin Wolf t2 = tsub(t2, t1); 1394797ac58cSKevin Wolf print_report("wrote", &t2, first_offset, total, total, cnt, Cflag); 1395797ac58cSKevin Wolf out: 1396797ac58cSKevin Wolf for (i = 0; i < nr_reqs; i++) { 1397797ac58cSKevin Wolf qemu_io_free(buf[i]); 1398797ac58cSKevin Wolf if (reqs[i].qiov != NULL) { 1399797ac58cSKevin Wolf qemu_iovec_destroy(&qiovs[i]); 1400797ac58cSKevin Wolf } 1401797ac58cSKevin Wolf } 1402797ac58cSKevin Wolf g_free(buf); 1403797ac58cSKevin Wolf g_free(reqs); 1404797ac58cSKevin Wolf g_free(qiovs); 1405797ac58cSKevin Wolf return 0; 1406797ac58cSKevin Wolf } 1407797ac58cSKevin Wolf 1408797ac58cSKevin Wolf struct aio_ctx { 14094c7b7e9bSMax Reitz BlockBackend *blk; 1410797ac58cSKevin Wolf QEMUIOVector qiov; 1411797ac58cSKevin Wolf int64_t offset; 1412797ac58cSKevin Wolf char *buf; 1413797ac58cSKevin Wolf int qflag; 1414797ac58cSKevin Wolf int vflag; 1415797ac58cSKevin Wolf int Cflag; 1416797ac58cSKevin Wolf int Pflag; 1417a91f9584SFam Zheng BlockAcctCookie acct; 1418797ac58cSKevin Wolf int pattern; 1419797ac58cSKevin Wolf struct timeval t1; 1420797ac58cSKevin Wolf }; 1421797ac58cSKevin Wolf 1422797ac58cSKevin Wolf static void aio_write_done(void *opaque, int ret) 1423797ac58cSKevin Wolf { 1424797ac58cSKevin Wolf struct aio_ctx *ctx = opaque; 1425797ac58cSKevin Wolf struct timeval t2; 1426797ac58cSKevin Wolf 1427797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1428797ac58cSKevin Wolf 1429797ac58cSKevin Wolf 1430797ac58cSKevin Wolf if (ret < 0) { 1431797ac58cSKevin Wolf printf("aio_write failed: %s\n", strerror(-ret)); 1432556c2b60SAlberto Garcia block_acct_failed(blk_get_stats(ctx->blk), &ctx->acct); 1433797ac58cSKevin Wolf goto out; 1434797ac58cSKevin Wolf } 1435797ac58cSKevin Wolf 14364c7b7e9bSMax Reitz block_acct_done(blk_get_stats(ctx->blk), &ctx->acct); 1437a91f9584SFam Zheng 1438797ac58cSKevin Wolf if (ctx->qflag) { 1439797ac58cSKevin Wolf goto out; 1440797ac58cSKevin Wolf } 1441797ac58cSKevin Wolf 1442797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1443797ac58cSKevin Wolf t2 = tsub(t2, ctx->t1); 1444797ac58cSKevin Wolf print_report("wrote", &t2, ctx->offset, ctx->qiov.size, 1445797ac58cSKevin Wolf ctx->qiov.size, 1, ctx->Cflag); 1446797ac58cSKevin Wolf out: 1447797ac58cSKevin Wolf qemu_io_free(ctx->buf); 1448797ac58cSKevin Wolf qemu_iovec_destroy(&ctx->qiov); 1449797ac58cSKevin Wolf g_free(ctx); 1450797ac58cSKevin Wolf } 1451797ac58cSKevin Wolf 1452797ac58cSKevin Wolf static void aio_read_done(void *opaque, int ret) 1453797ac58cSKevin Wolf { 1454797ac58cSKevin Wolf struct aio_ctx *ctx = opaque; 1455797ac58cSKevin Wolf struct timeval t2; 1456797ac58cSKevin Wolf 1457797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1458797ac58cSKevin Wolf 1459797ac58cSKevin Wolf if (ret < 0) { 1460797ac58cSKevin Wolf printf("readv failed: %s\n", strerror(-ret)); 1461556c2b60SAlberto Garcia block_acct_failed(blk_get_stats(ctx->blk), &ctx->acct); 1462797ac58cSKevin Wolf goto out; 1463797ac58cSKevin Wolf } 1464797ac58cSKevin Wolf 1465797ac58cSKevin Wolf if (ctx->Pflag) { 1466797ac58cSKevin Wolf void *cmp_buf = g_malloc(ctx->qiov.size); 1467797ac58cSKevin Wolf 1468797ac58cSKevin Wolf memset(cmp_buf, ctx->pattern, ctx->qiov.size); 1469797ac58cSKevin Wolf if (memcmp(ctx->buf, cmp_buf, ctx->qiov.size)) { 1470797ac58cSKevin Wolf printf("Pattern verification failed at offset %" 1471797ac58cSKevin Wolf PRId64 ", %zd bytes\n", ctx->offset, ctx->qiov.size); 1472797ac58cSKevin Wolf } 1473797ac58cSKevin Wolf g_free(cmp_buf); 1474797ac58cSKevin Wolf } 1475797ac58cSKevin Wolf 14764c7b7e9bSMax Reitz block_acct_done(blk_get_stats(ctx->blk), &ctx->acct); 1477a91f9584SFam Zheng 1478797ac58cSKevin Wolf if (ctx->qflag) { 1479797ac58cSKevin Wolf goto out; 1480797ac58cSKevin Wolf } 1481797ac58cSKevin Wolf 1482797ac58cSKevin Wolf if (ctx->vflag) { 1483797ac58cSKevin Wolf dump_buffer(ctx->buf, ctx->offset, ctx->qiov.size); 1484797ac58cSKevin Wolf } 1485797ac58cSKevin Wolf 1486797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1487797ac58cSKevin Wolf t2 = tsub(t2, ctx->t1); 1488797ac58cSKevin Wolf print_report("read", &t2, ctx->offset, ctx->qiov.size, 1489797ac58cSKevin Wolf ctx->qiov.size, 1, ctx->Cflag); 1490797ac58cSKevin Wolf out: 1491797ac58cSKevin Wolf qemu_io_free(ctx->buf); 1492797ac58cSKevin Wolf qemu_iovec_destroy(&ctx->qiov); 1493797ac58cSKevin Wolf g_free(ctx); 1494797ac58cSKevin Wolf } 1495797ac58cSKevin Wolf 1496797ac58cSKevin Wolf static void aio_read_help(void) 1497797ac58cSKevin Wolf { 1498797ac58cSKevin Wolf printf( 1499797ac58cSKevin Wolf "\n" 1500797ac58cSKevin Wolf " asynchronously reads a range of bytes from the given offset\n" 1501797ac58cSKevin Wolf "\n" 1502797ac58cSKevin Wolf " Example:\n" 1503797ac58cSKevin Wolf " 'aio_read -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" 1504797ac58cSKevin Wolf "\n" 1505797ac58cSKevin Wolf " Reads a segment of the currently open file, optionally dumping it to the\n" 1506797ac58cSKevin Wolf " standard output stream (with -v option) for subsequent inspection.\n" 1507797ac58cSKevin Wolf " The read is performed asynchronously and the aio_flush command must be\n" 1508797ac58cSKevin Wolf " used to ensure all outstanding aio requests have been completed.\n" 1509797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1510797ac58cSKevin Wolf " -P, -- use a pattern to verify read data\n" 1511797ac58cSKevin Wolf " -v, -- dump buffer to standard output\n" 1512797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1513797ac58cSKevin Wolf "\n"); 1514797ac58cSKevin Wolf } 1515797ac58cSKevin Wolf 15164c7b7e9bSMax Reitz static int aio_read_f(BlockBackend *blk, int argc, char **argv); 1517797ac58cSKevin Wolf 1518797ac58cSKevin Wolf static const cmdinfo_t aio_read_cmd = { 1519797ac58cSKevin Wolf .name = "aio_read", 1520797ac58cSKevin Wolf .cfunc = aio_read_f, 1521797ac58cSKevin Wolf .argmin = 2, 1522797ac58cSKevin Wolf .argmax = -1, 1523797ac58cSKevin Wolf .args = "[-Cqv] [-P pattern ] off len [len..]", 1524797ac58cSKevin Wolf .oneline = "asynchronously reads a number of bytes", 1525797ac58cSKevin Wolf .help = aio_read_help, 1526797ac58cSKevin Wolf }; 1527797ac58cSKevin Wolf 15284c7b7e9bSMax Reitz static int aio_read_f(BlockBackend *blk, int argc, char **argv) 1529797ac58cSKevin Wolf { 1530797ac58cSKevin Wolf int nr_iov, c; 1531797ac58cSKevin Wolf struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); 1532797ac58cSKevin Wolf 15334c7b7e9bSMax Reitz ctx->blk = blk; 1534b062ad86SEric Blake while ((c = getopt(argc, argv, "CP:qv")) != -1) { 1535797ac58cSKevin Wolf switch (c) { 1536797ac58cSKevin Wolf case 'C': 1537797ac58cSKevin Wolf ctx->Cflag = 1; 1538797ac58cSKevin Wolf break; 1539797ac58cSKevin Wolf case 'P': 1540797ac58cSKevin Wolf ctx->Pflag = 1; 1541797ac58cSKevin Wolf ctx->pattern = parse_pattern(optarg); 1542797ac58cSKevin Wolf if (ctx->pattern < 0) { 1543797ac58cSKevin Wolf g_free(ctx); 1544797ac58cSKevin Wolf return 0; 1545797ac58cSKevin Wolf } 1546797ac58cSKevin Wolf break; 1547797ac58cSKevin Wolf case 'q': 1548797ac58cSKevin Wolf ctx->qflag = 1; 1549797ac58cSKevin Wolf break; 1550797ac58cSKevin Wolf case 'v': 1551797ac58cSKevin Wolf ctx->vflag = 1; 1552797ac58cSKevin Wolf break; 1553797ac58cSKevin Wolf default: 1554797ac58cSKevin Wolf g_free(ctx); 1555c2cdf5c5SKevin Wolf return qemuio_command_usage(&aio_read_cmd); 1556797ac58cSKevin Wolf } 1557797ac58cSKevin Wolf } 1558797ac58cSKevin Wolf 1559797ac58cSKevin Wolf if (optind > argc - 2) { 1560797ac58cSKevin Wolf g_free(ctx); 1561c2cdf5c5SKevin Wolf return qemuio_command_usage(&aio_read_cmd); 1562797ac58cSKevin Wolf } 1563797ac58cSKevin Wolf 1564797ac58cSKevin Wolf ctx->offset = cvtnum(argv[optind]); 1565797ac58cSKevin Wolf if (ctx->offset < 0) { 1566a9ecfa00SJohn Snow print_cvtnum_err(ctx->offset, argv[optind]); 1567797ac58cSKevin Wolf g_free(ctx); 1568797ac58cSKevin Wolf return 0; 1569797ac58cSKevin Wolf } 1570797ac58cSKevin Wolf optind++; 1571797ac58cSKevin Wolf 1572797ac58cSKevin Wolf if (ctx->offset & 0x1ff) { 1573797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1574797ac58cSKevin Wolf ctx->offset); 1575556c2b60SAlberto Garcia block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_READ); 1576797ac58cSKevin Wolf g_free(ctx); 1577797ac58cSKevin Wolf return 0; 1578797ac58cSKevin Wolf } 1579797ac58cSKevin Wolf 1580797ac58cSKevin Wolf nr_iov = argc - optind; 15814c7b7e9bSMax Reitz ctx->buf = create_iovec(blk, &ctx->qiov, &argv[optind], nr_iov, 0xab); 1582797ac58cSKevin Wolf if (ctx->buf == NULL) { 1583556c2b60SAlberto Garcia block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_READ); 1584797ac58cSKevin Wolf g_free(ctx); 1585797ac58cSKevin Wolf return 0; 1586797ac58cSKevin Wolf } 1587797ac58cSKevin Wolf 1588797ac58cSKevin Wolf gettimeofday(&ctx->t1, NULL); 15894c7b7e9bSMax Reitz block_acct_start(blk_get_stats(blk), &ctx->acct, ctx->qiov.size, 15904c7b7e9bSMax Reitz BLOCK_ACCT_READ); 15914c7b7e9bSMax Reitz blk_aio_readv(blk, ctx->offset >> 9, &ctx->qiov, 1592797ac58cSKevin Wolf ctx->qiov.size >> 9, aio_read_done, ctx); 1593797ac58cSKevin Wolf return 0; 1594797ac58cSKevin Wolf } 1595797ac58cSKevin Wolf 1596797ac58cSKevin Wolf static void aio_write_help(void) 1597797ac58cSKevin Wolf { 1598797ac58cSKevin Wolf printf( 1599797ac58cSKevin Wolf "\n" 1600797ac58cSKevin Wolf " asynchronously writes a range of bytes from the given offset source\n" 1601797ac58cSKevin Wolf " from multiple buffers\n" 1602797ac58cSKevin Wolf "\n" 1603797ac58cSKevin Wolf " Example:\n" 1604797ac58cSKevin Wolf " 'aio_write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" 1605797ac58cSKevin Wolf "\n" 1606797ac58cSKevin Wolf " Writes into a segment of the currently open file, using a buffer\n" 1607797ac58cSKevin Wolf " filled with a set pattern (0xcdcdcdcd).\n" 1608797ac58cSKevin Wolf " The write is performed asynchronously and the aio_flush command must be\n" 1609797ac58cSKevin Wolf " used to ensure all outstanding aio requests have been completed.\n" 1610797ac58cSKevin Wolf " -P, -- use different pattern to fill file\n" 1611797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1612797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1613797ac58cSKevin Wolf "\n"); 1614797ac58cSKevin Wolf } 1615797ac58cSKevin Wolf 16164c7b7e9bSMax Reitz static int aio_write_f(BlockBackend *blk, int argc, char **argv); 1617797ac58cSKevin Wolf 1618797ac58cSKevin Wolf static const cmdinfo_t aio_write_cmd = { 1619797ac58cSKevin Wolf .name = "aio_write", 1620797ac58cSKevin Wolf .cfunc = aio_write_f, 1621797ac58cSKevin Wolf .argmin = 2, 1622797ac58cSKevin Wolf .argmax = -1, 1623797ac58cSKevin Wolf .args = "[-Cq] [-P pattern ] off len [len..]", 1624797ac58cSKevin Wolf .oneline = "asynchronously writes a number of bytes", 1625797ac58cSKevin Wolf .help = aio_write_help, 1626797ac58cSKevin Wolf }; 1627797ac58cSKevin Wolf 16284c7b7e9bSMax Reitz static int aio_write_f(BlockBackend *blk, int argc, char **argv) 1629797ac58cSKevin Wolf { 1630797ac58cSKevin Wolf int nr_iov, c; 1631797ac58cSKevin Wolf int pattern = 0xcd; 1632797ac58cSKevin Wolf struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); 1633797ac58cSKevin Wolf 16344c7b7e9bSMax Reitz ctx->blk = blk; 1635b062ad86SEric Blake while ((c = getopt(argc, argv, "CqP:")) != -1) { 1636797ac58cSKevin Wolf switch (c) { 1637797ac58cSKevin Wolf case 'C': 1638797ac58cSKevin Wolf ctx->Cflag = 1; 1639797ac58cSKevin Wolf break; 1640797ac58cSKevin Wolf case 'q': 1641797ac58cSKevin Wolf ctx->qflag = 1; 1642797ac58cSKevin Wolf break; 1643797ac58cSKevin Wolf case 'P': 1644797ac58cSKevin Wolf pattern = parse_pattern(optarg); 1645797ac58cSKevin Wolf if (pattern < 0) { 1646797ac58cSKevin Wolf g_free(ctx); 1647797ac58cSKevin Wolf return 0; 1648797ac58cSKevin Wolf } 1649797ac58cSKevin Wolf break; 1650797ac58cSKevin Wolf default: 1651797ac58cSKevin Wolf g_free(ctx); 1652c2cdf5c5SKevin Wolf return qemuio_command_usage(&aio_write_cmd); 1653797ac58cSKevin Wolf } 1654797ac58cSKevin Wolf } 1655797ac58cSKevin Wolf 1656797ac58cSKevin Wolf if (optind > argc - 2) { 1657797ac58cSKevin Wolf g_free(ctx); 1658c2cdf5c5SKevin Wolf return qemuio_command_usage(&aio_write_cmd); 1659797ac58cSKevin Wolf } 1660797ac58cSKevin Wolf 1661797ac58cSKevin Wolf ctx->offset = cvtnum(argv[optind]); 1662797ac58cSKevin Wolf if (ctx->offset < 0) { 1663a9ecfa00SJohn Snow print_cvtnum_err(ctx->offset, argv[optind]); 1664797ac58cSKevin Wolf g_free(ctx); 1665797ac58cSKevin Wolf return 0; 1666797ac58cSKevin Wolf } 1667797ac58cSKevin Wolf optind++; 1668797ac58cSKevin Wolf 1669797ac58cSKevin Wolf if (ctx->offset & 0x1ff) { 1670797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1671797ac58cSKevin Wolf ctx->offset); 1672556c2b60SAlberto Garcia block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_WRITE); 1673797ac58cSKevin Wolf g_free(ctx); 1674797ac58cSKevin Wolf return 0; 1675797ac58cSKevin Wolf } 1676797ac58cSKevin Wolf 1677797ac58cSKevin Wolf nr_iov = argc - optind; 16784c7b7e9bSMax Reitz ctx->buf = create_iovec(blk, &ctx->qiov, &argv[optind], nr_iov, pattern); 1679797ac58cSKevin Wolf if (ctx->buf == NULL) { 1680556c2b60SAlberto Garcia block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_WRITE); 1681797ac58cSKevin Wolf g_free(ctx); 1682797ac58cSKevin Wolf return 0; 1683797ac58cSKevin Wolf } 1684797ac58cSKevin Wolf 1685797ac58cSKevin Wolf gettimeofday(&ctx->t1, NULL); 16864c7b7e9bSMax Reitz block_acct_start(blk_get_stats(blk), &ctx->acct, ctx->qiov.size, 16874c7b7e9bSMax Reitz BLOCK_ACCT_WRITE); 16884c7b7e9bSMax Reitz blk_aio_writev(blk, ctx->offset >> 9, &ctx->qiov, 1689797ac58cSKevin Wolf ctx->qiov.size >> 9, aio_write_done, ctx); 1690797ac58cSKevin Wolf return 0; 1691797ac58cSKevin Wolf } 1692797ac58cSKevin Wolf 16934c7b7e9bSMax Reitz static int aio_flush_f(BlockBackend *blk, int argc, char **argv) 1694797ac58cSKevin Wolf { 1695556c2b60SAlberto Garcia BlockAcctCookie cookie; 1696556c2b60SAlberto Garcia block_acct_start(blk_get_stats(blk), &cookie, 0, BLOCK_ACCT_FLUSH); 16974c7b7e9bSMax Reitz blk_drain_all(); 1698556c2b60SAlberto Garcia block_acct_done(blk_get_stats(blk), &cookie); 1699797ac58cSKevin Wolf return 0; 1700797ac58cSKevin Wolf } 1701797ac58cSKevin Wolf 1702797ac58cSKevin Wolf static const cmdinfo_t aio_flush_cmd = { 1703797ac58cSKevin Wolf .name = "aio_flush", 1704797ac58cSKevin Wolf .cfunc = aio_flush_f, 1705797ac58cSKevin Wolf .oneline = "completes all outstanding aio requests" 1706797ac58cSKevin Wolf }; 1707797ac58cSKevin Wolf 17084c7b7e9bSMax Reitz static int flush_f(BlockBackend *blk, int argc, char **argv) 1709797ac58cSKevin Wolf { 17104c7b7e9bSMax Reitz blk_flush(blk); 1711797ac58cSKevin Wolf return 0; 1712797ac58cSKevin Wolf } 1713797ac58cSKevin Wolf 1714797ac58cSKevin Wolf static const cmdinfo_t flush_cmd = { 1715797ac58cSKevin Wolf .name = "flush", 1716797ac58cSKevin Wolf .altname = "f", 1717797ac58cSKevin Wolf .cfunc = flush_f, 1718797ac58cSKevin Wolf .oneline = "flush all in-core file state to disk", 1719797ac58cSKevin Wolf }; 1720797ac58cSKevin Wolf 17214c7b7e9bSMax Reitz static int truncate_f(BlockBackend *blk, int argc, char **argv) 1722797ac58cSKevin Wolf { 1723797ac58cSKevin Wolf int64_t offset; 1724797ac58cSKevin Wolf int ret; 1725797ac58cSKevin Wolf 1726797ac58cSKevin Wolf offset = cvtnum(argv[1]); 1727797ac58cSKevin Wolf if (offset < 0) { 1728a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[1]); 1729797ac58cSKevin Wolf return 0; 1730797ac58cSKevin Wolf } 1731797ac58cSKevin Wolf 17324c7b7e9bSMax Reitz ret = blk_truncate(blk, offset); 1733797ac58cSKevin Wolf if (ret < 0) { 1734797ac58cSKevin Wolf printf("truncate: %s\n", strerror(-ret)); 1735797ac58cSKevin Wolf return 0; 1736797ac58cSKevin Wolf } 1737797ac58cSKevin Wolf 1738797ac58cSKevin Wolf return 0; 1739797ac58cSKevin Wolf } 1740797ac58cSKevin Wolf 1741797ac58cSKevin Wolf static const cmdinfo_t truncate_cmd = { 1742797ac58cSKevin Wolf .name = "truncate", 1743797ac58cSKevin Wolf .altname = "t", 1744797ac58cSKevin Wolf .cfunc = truncate_f, 1745797ac58cSKevin Wolf .argmin = 1, 1746797ac58cSKevin Wolf .argmax = 1, 1747797ac58cSKevin Wolf .args = "off", 1748797ac58cSKevin Wolf .oneline = "truncates the current file at the given offset", 1749797ac58cSKevin Wolf }; 1750797ac58cSKevin Wolf 17514c7b7e9bSMax Reitz static int length_f(BlockBackend *blk, int argc, char **argv) 1752797ac58cSKevin Wolf { 1753797ac58cSKevin Wolf int64_t size; 1754797ac58cSKevin Wolf char s1[64]; 1755797ac58cSKevin Wolf 17564c7b7e9bSMax Reitz size = blk_getlength(blk); 1757797ac58cSKevin Wolf if (size < 0) { 1758797ac58cSKevin Wolf printf("getlength: %s\n", strerror(-size)); 1759797ac58cSKevin Wolf return 0; 1760797ac58cSKevin Wolf } 1761797ac58cSKevin Wolf 1762797ac58cSKevin Wolf cvtstr(size, s1, sizeof(s1)); 1763797ac58cSKevin Wolf printf("%s\n", s1); 1764797ac58cSKevin Wolf return 0; 1765797ac58cSKevin Wolf } 1766797ac58cSKevin Wolf 1767797ac58cSKevin Wolf 1768797ac58cSKevin Wolf static const cmdinfo_t length_cmd = { 1769797ac58cSKevin Wolf .name = "length", 1770797ac58cSKevin Wolf .altname = "l", 1771797ac58cSKevin Wolf .cfunc = length_f, 1772797ac58cSKevin Wolf .oneline = "gets the length of the current file", 1773797ac58cSKevin Wolf }; 1774797ac58cSKevin Wolf 1775797ac58cSKevin Wolf 17764c7b7e9bSMax Reitz static int info_f(BlockBackend *blk, int argc, char **argv) 1777797ac58cSKevin Wolf { 17784c7b7e9bSMax Reitz BlockDriverState *bs = blk_bs(blk); 1779797ac58cSKevin Wolf BlockDriverInfo bdi; 1780a8d8ecb7SMax Reitz ImageInfoSpecific *spec_info; 1781797ac58cSKevin Wolf char s1[64], s2[64]; 1782797ac58cSKevin Wolf int ret; 1783797ac58cSKevin Wolf 1784797ac58cSKevin Wolf if (bs->drv && bs->drv->format_name) { 1785797ac58cSKevin Wolf printf("format name: %s\n", bs->drv->format_name); 1786797ac58cSKevin Wolf } 1787797ac58cSKevin Wolf if (bs->drv && bs->drv->protocol_name) { 1788797ac58cSKevin Wolf printf("format name: %s\n", bs->drv->protocol_name); 1789797ac58cSKevin Wolf } 1790797ac58cSKevin Wolf 1791797ac58cSKevin Wolf ret = bdrv_get_info(bs, &bdi); 1792797ac58cSKevin Wolf if (ret) { 1793797ac58cSKevin Wolf return 0; 1794797ac58cSKevin Wolf } 1795797ac58cSKevin Wolf 1796797ac58cSKevin Wolf cvtstr(bdi.cluster_size, s1, sizeof(s1)); 1797797ac58cSKevin Wolf cvtstr(bdi.vm_state_offset, s2, sizeof(s2)); 1798797ac58cSKevin Wolf 1799797ac58cSKevin Wolf printf("cluster size: %s\n", s1); 1800797ac58cSKevin Wolf printf("vm state offset: %s\n", s2); 1801797ac58cSKevin Wolf 1802a8d8ecb7SMax Reitz spec_info = bdrv_get_specific_info(bs); 1803a8d8ecb7SMax Reitz if (spec_info) { 1804a8d8ecb7SMax Reitz printf("Format specific information:\n"); 1805a8d8ecb7SMax Reitz bdrv_image_info_specific_dump(fprintf, stdout, spec_info); 1806a8d8ecb7SMax Reitz qapi_free_ImageInfoSpecific(spec_info); 1807a8d8ecb7SMax Reitz } 1808a8d8ecb7SMax Reitz 1809797ac58cSKevin Wolf return 0; 1810797ac58cSKevin Wolf } 1811797ac58cSKevin Wolf 1812797ac58cSKevin Wolf 1813797ac58cSKevin Wolf 1814797ac58cSKevin Wolf static const cmdinfo_t info_cmd = { 1815797ac58cSKevin Wolf .name = "info", 1816797ac58cSKevin Wolf .altname = "i", 1817797ac58cSKevin Wolf .cfunc = info_f, 1818797ac58cSKevin Wolf .oneline = "prints information about the current file", 1819797ac58cSKevin Wolf }; 1820797ac58cSKevin Wolf 1821797ac58cSKevin Wolf static void discard_help(void) 1822797ac58cSKevin Wolf { 1823797ac58cSKevin Wolf printf( 1824797ac58cSKevin Wolf "\n" 1825797ac58cSKevin Wolf " discards a range of bytes from the given offset\n" 1826797ac58cSKevin Wolf "\n" 1827797ac58cSKevin Wolf " Example:\n" 1828797ac58cSKevin Wolf " 'discard 512 1k' - discards 1 kilobyte from 512 bytes into the file\n" 1829797ac58cSKevin Wolf "\n" 1830797ac58cSKevin Wolf " Discards a segment of the currently open file.\n" 1831797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1832797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1833797ac58cSKevin Wolf "\n"); 1834797ac58cSKevin Wolf } 1835797ac58cSKevin Wolf 18364c7b7e9bSMax Reitz static int discard_f(BlockBackend *blk, int argc, char **argv); 1837797ac58cSKevin Wolf 1838797ac58cSKevin Wolf static const cmdinfo_t discard_cmd = { 1839797ac58cSKevin Wolf .name = "discard", 1840797ac58cSKevin Wolf .altname = "d", 1841797ac58cSKevin Wolf .cfunc = discard_f, 1842797ac58cSKevin Wolf .argmin = 2, 1843797ac58cSKevin Wolf .argmax = -1, 1844797ac58cSKevin Wolf .args = "[-Cq] off len", 1845797ac58cSKevin Wolf .oneline = "discards a number of bytes at a specified offset", 1846797ac58cSKevin Wolf .help = discard_help, 1847797ac58cSKevin Wolf }; 1848797ac58cSKevin Wolf 18494c7b7e9bSMax Reitz static int discard_f(BlockBackend *blk, int argc, char **argv) 1850797ac58cSKevin Wolf { 1851797ac58cSKevin Wolf struct timeval t1, t2; 1852797ac58cSKevin Wolf int Cflag = 0, qflag = 0; 1853797ac58cSKevin Wolf int c, ret; 18549b0beaf3SJohn Snow int64_t offset, count; 1855797ac58cSKevin Wolf 1856b062ad86SEric Blake while ((c = getopt(argc, argv, "Cq")) != -1) { 1857797ac58cSKevin Wolf switch (c) { 1858797ac58cSKevin Wolf case 'C': 1859797ac58cSKevin Wolf Cflag = 1; 1860797ac58cSKevin Wolf break; 1861797ac58cSKevin Wolf case 'q': 1862797ac58cSKevin Wolf qflag = 1; 1863797ac58cSKevin Wolf break; 1864797ac58cSKevin Wolf default: 1865c2cdf5c5SKevin Wolf return qemuio_command_usage(&discard_cmd); 1866797ac58cSKevin Wolf } 1867797ac58cSKevin Wolf } 1868797ac58cSKevin Wolf 1869797ac58cSKevin Wolf if (optind != argc - 2) { 1870c2cdf5c5SKevin Wolf return qemuio_command_usage(&discard_cmd); 1871797ac58cSKevin Wolf } 1872797ac58cSKevin Wolf 1873797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 1874797ac58cSKevin Wolf if (offset < 0) { 1875a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[optind]); 1876797ac58cSKevin Wolf return 0; 1877797ac58cSKevin Wolf } 1878797ac58cSKevin Wolf 1879797ac58cSKevin Wolf optind++; 1880797ac58cSKevin Wolf count = cvtnum(argv[optind]); 1881797ac58cSKevin Wolf if (count < 0) { 1882a9ecfa00SJohn Snow print_cvtnum_err(count, argv[optind]); 1883797ac58cSKevin Wolf return 0; 18849b0beaf3SJohn Snow } else if (count >> BDRV_SECTOR_BITS > INT_MAX) { 18859b0beaf3SJohn Snow printf("length cannot exceed %"PRIu64", given %s\n", 18869b0beaf3SJohn Snow (uint64_t)INT_MAX << BDRV_SECTOR_BITS, 18879b0beaf3SJohn Snow argv[optind]); 18889b0beaf3SJohn Snow return 0; 1889797ac58cSKevin Wolf } 1890797ac58cSKevin Wolf 1891797ac58cSKevin Wolf gettimeofday(&t1, NULL); 18924c7b7e9bSMax Reitz ret = blk_discard(blk, offset >> BDRV_SECTOR_BITS, 1893797ac58cSKevin Wolf count >> BDRV_SECTOR_BITS); 1894797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1895797ac58cSKevin Wolf 1896797ac58cSKevin Wolf if (ret < 0) { 1897797ac58cSKevin Wolf printf("discard failed: %s\n", strerror(-ret)); 1898797ac58cSKevin Wolf goto out; 1899797ac58cSKevin Wolf } 1900797ac58cSKevin Wolf 1901797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1902797ac58cSKevin Wolf if (!qflag) { 1903797ac58cSKevin Wolf t2 = tsub(t2, t1); 1904797ac58cSKevin Wolf print_report("discard", &t2, offset, count, count, 1, Cflag); 1905797ac58cSKevin Wolf } 1906797ac58cSKevin Wolf 1907797ac58cSKevin Wolf out: 1908797ac58cSKevin Wolf return 0; 1909797ac58cSKevin Wolf } 1910797ac58cSKevin Wolf 19114c7b7e9bSMax Reitz static int alloc_f(BlockBackend *blk, int argc, char **argv) 1912797ac58cSKevin Wolf { 19134c7b7e9bSMax Reitz BlockDriverState *bs = blk_bs(blk); 19149b0beaf3SJohn Snow int64_t offset, sector_num, nb_sectors, remaining; 1915797ac58cSKevin Wolf char s1[64]; 19169b0beaf3SJohn Snow int num, ret; 19179b0beaf3SJohn Snow int64_t sum_alloc; 1918797ac58cSKevin Wolf 1919797ac58cSKevin Wolf offset = cvtnum(argv[1]); 1920797ac58cSKevin Wolf if (offset < 0) { 1921a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[1]); 1922797ac58cSKevin Wolf return 0; 1923797ac58cSKevin Wolf } else if (offset & 0x1ff) { 1924797ac58cSKevin Wolf printf("offset %" PRId64 " is not sector aligned\n", 1925797ac58cSKevin Wolf offset); 1926797ac58cSKevin Wolf return 0; 1927797ac58cSKevin Wolf } 1928797ac58cSKevin Wolf 1929797ac58cSKevin Wolf if (argc == 3) { 1930797ac58cSKevin Wolf nb_sectors = cvtnum(argv[2]); 1931797ac58cSKevin Wolf if (nb_sectors < 0) { 1932a9ecfa00SJohn Snow print_cvtnum_err(nb_sectors, argv[2]); 1933797ac58cSKevin Wolf return 0; 19349b0beaf3SJohn Snow } else if (nb_sectors > INT_MAX) { 19359b0beaf3SJohn Snow printf("length argument cannot exceed %d, given %s\n", 19369b0beaf3SJohn Snow INT_MAX, argv[2]); 19379b0beaf3SJohn Snow return 0; 1938797ac58cSKevin Wolf } 1939797ac58cSKevin Wolf } else { 1940797ac58cSKevin Wolf nb_sectors = 1; 1941797ac58cSKevin Wolf } 1942797ac58cSKevin Wolf 1943797ac58cSKevin Wolf remaining = nb_sectors; 1944797ac58cSKevin Wolf sum_alloc = 0; 1945797ac58cSKevin Wolf sector_num = offset >> 9; 1946797ac58cSKevin Wolf while (remaining) { 1947797ac58cSKevin Wolf ret = bdrv_is_allocated(bs, sector_num, remaining, &num); 1948d663640cSPaolo Bonzini if (ret < 0) { 1949d663640cSPaolo Bonzini printf("is_allocated failed: %s\n", strerror(-ret)); 1950d663640cSPaolo Bonzini return 0; 1951d663640cSPaolo Bonzini } 1952797ac58cSKevin Wolf sector_num += num; 1953797ac58cSKevin Wolf remaining -= num; 1954797ac58cSKevin Wolf if (ret) { 1955797ac58cSKevin Wolf sum_alloc += num; 1956797ac58cSKevin Wolf } 1957797ac58cSKevin Wolf if (num == 0) { 1958797ac58cSKevin Wolf nb_sectors -= remaining; 1959797ac58cSKevin Wolf remaining = 0; 1960797ac58cSKevin Wolf } 1961797ac58cSKevin Wolf } 1962797ac58cSKevin Wolf 1963797ac58cSKevin Wolf cvtstr(offset, s1, sizeof(s1)); 1964797ac58cSKevin Wolf 19659b0beaf3SJohn Snow printf("%"PRId64"/%"PRId64" sectors allocated at offset %s\n", 1966797ac58cSKevin Wolf sum_alloc, nb_sectors, s1); 1967797ac58cSKevin Wolf return 0; 1968797ac58cSKevin Wolf } 1969797ac58cSKevin Wolf 1970797ac58cSKevin Wolf static const cmdinfo_t alloc_cmd = { 1971797ac58cSKevin Wolf .name = "alloc", 1972797ac58cSKevin Wolf .altname = "a", 1973797ac58cSKevin Wolf .argmin = 1, 1974797ac58cSKevin Wolf .argmax = 2, 1975797ac58cSKevin Wolf .cfunc = alloc_f, 1976797ac58cSKevin Wolf .args = "off [sectors]", 1977797ac58cSKevin Wolf .oneline = "checks if a sector is present in the file", 1978797ac58cSKevin Wolf }; 1979797ac58cSKevin Wolf 1980797ac58cSKevin Wolf 1981797ac58cSKevin Wolf static int map_is_allocated(BlockDriverState *bs, int64_t sector_num, 1982797ac58cSKevin Wolf int64_t nb_sectors, int64_t *pnum) 1983797ac58cSKevin Wolf { 1984797ac58cSKevin Wolf int num, num_checked; 1985797ac58cSKevin Wolf int ret, firstret; 1986797ac58cSKevin Wolf 1987797ac58cSKevin Wolf num_checked = MIN(nb_sectors, INT_MAX); 1988797ac58cSKevin Wolf ret = bdrv_is_allocated(bs, sector_num, num_checked, &num); 1989797ac58cSKevin Wolf if (ret < 0) { 1990797ac58cSKevin Wolf return ret; 1991797ac58cSKevin Wolf } 1992797ac58cSKevin Wolf 1993797ac58cSKevin Wolf firstret = ret; 1994797ac58cSKevin Wolf *pnum = num; 1995797ac58cSKevin Wolf 1996797ac58cSKevin Wolf while (nb_sectors > 0 && ret == firstret) { 1997797ac58cSKevin Wolf sector_num += num; 1998797ac58cSKevin Wolf nb_sectors -= num; 1999797ac58cSKevin Wolf 2000797ac58cSKevin Wolf num_checked = MIN(nb_sectors, INT_MAX); 2001797ac58cSKevin Wolf ret = bdrv_is_allocated(bs, sector_num, num_checked, &num); 20024b25bbc4SMax Reitz if (ret == firstret && num) { 2003797ac58cSKevin Wolf *pnum += num; 2004797ac58cSKevin Wolf } else { 2005797ac58cSKevin Wolf break; 2006797ac58cSKevin Wolf } 2007797ac58cSKevin Wolf } 2008797ac58cSKevin Wolf 2009797ac58cSKevin Wolf return firstret; 2010797ac58cSKevin Wolf } 2011797ac58cSKevin Wolf 20124c7b7e9bSMax Reitz static int map_f(BlockBackend *blk, int argc, char **argv) 2013797ac58cSKevin Wolf { 2014797ac58cSKevin Wolf int64_t offset; 20154c7b7e9bSMax Reitz int64_t nb_sectors, total_sectors; 2016797ac58cSKevin Wolf char s1[64]; 2017797ac58cSKevin Wolf int64_t num; 2018797ac58cSKevin Wolf int ret; 2019797ac58cSKevin Wolf const char *retstr; 2020797ac58cSKevin Wolf 2021797ac58cSKevin Wolf offset = 0; 20224c7b7e9bSMax Reitz total_sectors = blk_nb_sectors(blk); 20234c7b7e9bSMax Reitz if (total_sectors < 0) { 20244c7b7e9bSMax Reitz error_report("Failed to query image length: %s", 20254c7b7e9bSMax Reitz strerror(-total_sectors)); 20264c7b7e9bSMax Reitz return 0; 20274c7b7e9bSMax Reitz } 20284c7b7e9bSMax Reitz 20294c7b7e9bSMax Reitz nb_sectors = total_sectors; 2030797ac58cSKevin Wolf 2031797ac58cSKevin Wolf do { 20324c7b7e9bSMax Reitz ret = map_is_allocated(blk_bs(blk), offset, nb_sectors, &num); 2033797ac58cSKevin Wolf if (ret < 0) { 2034797ac58cSKevin Wolf error_report("Failed to get allocation status: %s", strerror(-ret)); 2035797ac58cSKevin Wolf return 0; 20364b25bbc4SMax Reitz } else if (!num) { 20374b25bbc4SMax Reitz error_report("Unexpected end of image"); 20384b25bbc4SMax Reitz return 0; 2039797ac58cSKevin Wolf } 2040797ac58cSKevin Wolf 2041797ac58cSKevin Wolf retstr = ret ? " allocated" : "not allocated"; 2042797ac58cSKevin Wolf cvtstr(offset << 9ULL, s1, sizeof(s1)); 2043797ac58cSKevin Wolf printf("[% 24" PRId64 "] % 8" PRId64 "/% 8" PRId64 " sectors %s " 2044797ac58cSKevin Wolf "at offset %s (%d)\n", 2045797ac58cSKevin Wolf offset << 9ULL, num, nb_sectors, retstr, s1, ret); 2046797ac58cSKevin Wolf 2047797ac58cSKevin Wolf offset += num; 2048797ac58cSKevin Wolf nb_sectors -= num; 20494c7b7e9bSMax Reitz } while (offset < total_sectors); 2050797ac58cSKevin Wolf 2051797ac58cSKevin Wolf return 0; 2052797ac58cSKevin Wolf } 2053797ac58cSKevin Wolf 2054797ac58cSKevin Wolf static const cmdinfo_t map_cmd = { 2055797ac58cSKevin Wolf .name = "map", 2056797ac58cSKevin Wolf .argmin = 0, 2057797ac58cSKevin Wolf .argmax = 0, 2058797ac58cSKevin Wolf .cfunc = map_f, 2059797ac58cSKevin Wolf .args = "", 2060797ac58cSKevin Wolf .oneline = "prints the allocated areas of a file", 2061797ac58cSKevin Wolf }; 2062797ac58cSKevin Wolf 20635bbd2e59SKevin Wolf static void reopen_help(void) 20645bbd2e59SKevin Wolf { 20655bbd2e59SKevin Wolf printf( 20665bbd2e59SKevin Wolf "\n" 20675bbd2e59SKevin Wolf " Changes the open options of an already opened image\n" 20685bbd2e59SKevin Wolf "\n" 20695bbd2e59SKevin Wolf " Example:\n" 20705bbd2e59SKevin Wolf " 'reopen -o lazy-refcounts=on' - activates lazy refcount writeback on a qcow2 image\n" 20715bbd2e59SKevin Wolf "\n" 20725bbd2e59SKevin Wolf " -r, -- Reopen the image read-only\n" 20735bbd2e59SKevin Wolf " -c, -- Change the cache mode to the given value\n" 20745bbd2e59SKevin Wolf " -o, -- Changes block driver options (cf. 'open' command)\n" 20755bbd2e59SKevin Wolf "\n"); 20765bbd2e59SKevin Wolf } 20775bbd2e59SKevin Wolf 20785bbd2e59SKevin Wolf static int reopen_f(BlockBackend *blk, int argc, char **argv); 20795bbd2e59SKevin Wolf 20805bbd2e59SKevin Wolf static QemuOptsList reopen_opts = { 20815bbd2e59SKevin Wolf .name = "reopen", 20825bbd2e59SKevin Wolf .merge_lists = true, 20835bbd2e59SKevin Wolf .head = QTAILQ_HEAD_INITIALIZER(reopen_opts.head), 20845bbd2e59SKevin Wolf .desc = { 20855bbd2e59SKevin Wolf /* no elements => accept any params */ 20865bbd2e59SKevin Wolf { /* end of list */ } 20875bbd2e59SKevin Wolf }, 20885bbd2e59SKevin Wolf }; 20895bbd2e59SKevin Wolf 20905bbd2e59SKevin Wolf static const cmdinfo_t reopen_cmd = { 20915bbd2e59SKevin Wolf .name = "reopen", 20925bbd2e59SKevin Wolf .argmin = 0, 20935bbd2e59SKevin Wolf .argmax = -1, 20945bbd2e59SKevin Wolf .cfunc = reopen_f, 20955bbd2e59SKevin Wolf .args = "[-r] [-c cache] [-o options]", 20965bbd2e59SKevin Wolf .oneline = "reopens an image with new options", 20975bbd2e59SKevin Wolf .help = reopen_help, 20985bbd2e59SKevin Wolf }; 20995bbd2e59SKevin Wolf 21005bbd2e59SKevin Wolf static int reopen_f(BlockBackend *blk, int argc, char **argv) 21015bbd2e59SKevin Wolf { 21025bbd2e59SKevin Wolf BlockDriverState *bs = blk_bs(blk); 21035bbd2e59SKevin Wolf QemuOpts *qopts; 21045bbd2e59SKevin Wolf QDict *opts; 21055bbd2e59SKevin Wolf int c; 21065bbd2e59SKevin Wolf int flags = bs->open_flags; 21075bbd2e59SKevin Wolf 21085bbd2e59SKevin Wolf BlockReopenQueue *brq; 21095bbd2e59SKevin Wolf Error *local_err = NULL; 21105bbd2e59SKevin Wolf 21115bbd2e59SKevin Wolf while ((c = getopt(argc, argv, "c:o:r")) != -1) { 21125bbd2e59SKevin Wolf switch (c) { 21135bbd2e59SKevin Wolf case 'c': 21145bbd2e59SKevin Wolf if (bdrv_parse_cache_flags(optarg, &flags) < 0) { 21155bbd2e59SKevin Wolf error_report("Invalid cache option: %s", optarg); 21165bbd2e59SKevin Wolf return 0; 21175bbd2e59SKevin Wolf } 21185bbd2e59SKevin Wolf break; 21195bbd2e59SKevin Wolf case 'o': 21205bbd2e59SKevin Wolf if (!qemu_opts_parse_noisily(&reopen_opts, optarg, 0)) { 21215bbd2e59SKevin Wolf qemu_opts_reset(&reopen_opts); 21225bbd2e59SKevin Wolf return 0; 21235bbd2e59SKevin Wolf } 21245bbd2e59SKevin Wolf break; 21255bbd2e59SKevin Wolf case 'r': 21265bbd2e59SKevin Wolf flags &= ~BDRV_O_RDWR; 21275bbd2e59SKevin Wolf break; 21285bbd2e59SKevin Wolf default: 21295bbd2e59SKevin Wolf qemu_opts_reset(&reopen_opts); 21305bbd2e59SKevin Wolf return qemuio_command_usage(&reopen_cmd); 21315bbd2e59SKevin Wolf } 21325bbd2e59SKevin Wolf } 21335bbd2e59SKevin Wolf 21345bbd2e59SKevin Wolf if (optind != argc) { 21355bbd2e59SKevin Wolf qemu_opts_reset(&reopen_opts); 21365bbd2e59SKevin Wolf return qemuio_command_usage(&reopen_cmd); 21375bbd2e59SKevin Wolf } 21385bbd2e59SKevin Wolf 21395bbd2e59SKevin Wolf qopts = qemu_opts_find(&reopen_opts, NULL); 21405bbd2e59SKevin Wolf opts = qopts ? qemu_opts_to_qdict(qopts, NULL) : NULL; 21415bbd2e59SKevin Wolf qemu_opts_reset(&reopen_opts); 21425bbd2e59SKevin Wolf 21435bbd2e59SKevin Wolf brq = bdrv_reopen_queue(NULL, bs, opts, flags); 21445bbd2e59SKevin Wolf bdrv_reopen_multiple(brq, &local_err); 21455bbd2e59SKevin Wolf if (local_err) { 21465bbd2e59SKevin Wolf error_report_err(local_err); 21475bbd2e59SKevin Wolf } 21485bbd2e59SKevin Wolf 21495bbd2e59SKevin Wolf return 0; 21505bbd2e59SKevin Wolf } 21515bbd2e59SKevin Wolf 21524c7b7e9bSMax Reitz static int break_f(BlockBackend *blk, int argc, char **argv) 2153797ac58cSKevin Wolf { 2154797ac58cSKevin Wolf int ret; 2155797ac58cSKevin Wolf 21564c7b7e9bSMax Reitz ret = bdrv_debug_breakpoint(blk_bs(blk), argv[1], argv[2]); 2157797ac58cSKevin Wolf if (ret < 0) { 2158797ac58cSKevin Wolf printf("Could not set breakpoint: %s\n", strerror(-ret)); 2159797ac58cSKevin Wolf } 2160797ac58cSKevin Wolf 2161797ac58cSKevin Wolf return 0; 2162797ac58cSKevin Wolf } 2163797ac58cSKevin Wolf 21644c7b7e9bSMax Reitz static int remove_break_f(BlockBackend *blk, int argc, char **argv) 21654cc70e93SFam Zheng { 21664cc70e93SFam Zheng int ret; 21674cc70e93SFam Zheng 21684c7b7e9bSMax Reitz ret = bdrv_debug_remove_breakpoint(blk_bs(blk), argv[1]); 21694cc70e93SFam Zheng if (ret < 0) { 21704cc70e93SFam Zheng printf("Could not remove breakpoint %s: %s\n", argv[1], strerror(-ret)); 21714cc70e93SFam Zheng } 21724cc70e93SFam Zheng 21734cc70e93SFam Zheng return 0; 21744cc70e93SFam Zheng } 21754cc70e93SFam Zheng 2176797ac58cSKevin Wolf static const cmdinfo_t break_cmd = { 2177797ac58cSKevin Wolf .name = "break", 2178797ac58cSKevin Wolf .argmin = 2, 2179797ac58cSKevin Wolf .argmax = 2, 2180797ac58cSKevin Wolf .cfunc = break_f, 2181797ac58cSKevin Wolf .args = "event tag", 2182797ac58cSKevin Wolf .oneline = "sets a breakpoint on event and tags the stopped " 2183797ac58cSKevin Wolf "request as tag", 2184797ac58cSKevin Wolf }; 2185797ac58cSKevin Wolf 21864cc70e93SFam Zheng static const cmdinfo_t remove_break_cmd = { 21874cc70e93SFam Zheng .name = "remove_break", 21884cc70e93SFam Zheng .argmin = 1, 21894cc70e93SFam Zheng .argmax = 1, 21904cc70e93SFam Zheng .cfunc = remove_break_f, 21914cc70e93SFam Zheng .args = "tag", 21924cc70e93SFam Zheng .oneline = "remove a breakpoint by tag", 21934cc70e93SFam Zheng }; 21944cc70e93SFam Zheng 21954c7b7e9bSMax Reitz static int resume_f(BlockBackend *blk, int argc, char **argv) 2196797ac58cSKevin Wolf { 2197797ac58cSKevin Wolf int ret; 2198797ac58cSKevin Wolf 21994c7b7e9bSMax Reitz ret = bdrv_debug_resume(blk_bs(blk), argv[1]); 2200797ac58cSKevin Wolf if (ret < 0) { 2201797ac58cSKevin Wolf printf("Could not resume request: %s\n", strerror(-ret)); 2202797ac58cSKevin Wolf } 2203797ac58cSKevin Wolf 2204797ac58cSKevin Wolf return 0; 2205797ac58cSKevin Wolf } 2206797ac58cSKevin Wolf 2207797ac58cSKevin Wolf static const cmdinfo_t resume_cmd = { 2208797ac58cSKevin Wolf .name = "resume", 2209797ac58cSKevin Wolf .argmin = 1, 2210797ac58cSKevin Wolf .argmax = 1, 2211797ac58cSKevin Wolf .cfunc = resume_f, 2212797ac58cSKevin Wolf .args = "tag", 2213797ac58cSKevin Wolf .oneline = "resumes the request tagged as tag", 2214797ac58cSKevin Wolf }; 2215797ac58cSKevin Wolf 22164c7b7e9bSMax Reitz static int wait_break_f(BlockBackend *blk, int argc, char **argv) 2217797ac58cSKevin Wolf { 22184c7b7e9bSMax Reitz while (!bdrv_debug_is_suspended(blk_bs(blk), argv[1])) { 22194c7b7e9bSMax Reitz aio_poll(blk_get_aio_context(blk), true); 2220797ac58cSKevin Wolf } 2221797ac58cSKevin Wolf 2222797ac58cSKevin Wolf return 0; 2223797ac58cSKevin Wolf } 2224797ac58cSKevin Wolf 2225797ac58cSKevin Wolf static const cmdinfo_t wait_break_cmd = { 2226797ac58cSKevin Wolf .name = "wait_break", 2227797ac58cSKevin Wolf .argmin = 1, 2228797ac58cSKevin Wolf .argmax = 1, 2229797ac58cSKevin Wolf .cfunc = wait_break_f, 2230797ac58cSKevin Wolf .args = "tag", 2231797ac58cSKevin Wolf .oneline = "waits for the suspension of a request", 2232797ac58cSKevin Wolf }; 2233797ac58cSKevin Wolf 22344c7b7e9bSMax Reitz static int abort_f(BlockBackend *blk, int argc, char **argv) 2235797ac58cSKevin Wolf { 2236797ac58cSKevin Wolf abort(); 2237797ac58cSKevin Wolf } 2238797ac58cSKevin Wolf 2239797ac58cSKevin Wolf static const cmdinfo_t abort_cmd = { 2240797ac58cSKevin Wolf .name = "abort", 2241797ac58cSKevin Wolf .cfunc = abort_f, 2242797ac58cSKevin Wolf .flags = CMD_NOFILE_OK, 2243797ac58cSKevin Wolf .oneline = "simulate a program crash using abort(3)", 2244797ac58cSKevin Wolf }; 2245797ac58cSKevin Wolf 22460e82dc7bSMax Reitz static void sigraise_help(void) 22470e82dc7bSMax Reitz { 22480e82dc7bSMax Reitz printf( 22490e82dc7bSMax Reitz "\n" 22500e82dc7bSMax Reitz " raises the given signal\n" 22510e82dc7bSMax Reitz "\n" 22520e82dc7bSMax Reitz " Example:\n" 22530e82dc7bSMax Reitz " 'sigraise %i' - raises SIGTERM\n" 22540e82dc7bSMax Reitz "\n" 22550e82dc7bSMax Reitz " Invokes raise(signal), where \"signal\" is the mandatory integer argument\n" 22560e82dc7bSMax Reitz " given to sigraise.\n" 22570e82dc7bSMax Reitz "\n", SIGTERM); 22580e82dc7bSMax Reitz } 22590e82dc7bSMax Reitz 22604c7b7e9bSMax Reitz static int sigraise_f(BlockBackend *blk, int argc, char **argv); 22610e82dc7bSMax Reitz 22620e82dc7bSMax Reitz static const cmdinfo_t sigraise_cmd = { 22630e82dc7bSMax Reitz .name = "sigraise", 22640e82dc7bSMax Reitz .cfunc = sigraise_f, 22650e82dc7bSMax Reitz .argmin = 1, 22660e82dc7bSMax Reitz .argmax = 1, 22670e82dc7bSMax Reitz .flags = CMD_NOFILE_OK, 22680e82dc7bSMax Reitz .args = "signal", 22690e82dc7bSMax Reitz .oneline = "raises a signal", 22700e82dc7bSMax Reitz .help = sigraise_help, 22710e82dc7bSMax Reitz }; 22720e82dc7bSMax Reitz 22734c7b7e9bSMax Reitz static int sigraise_f(BlockBackend *blk, int argc, char **argv) 22740e82dc7bSMax Reitz { 22759b0beaf3SJohn Snow int64_t sig = cvtnum(argv[1]); 22760e82dc7bSMax Reitz if (sig < 0) { 2277a9ecfa00SJohn Snow print_cvtnum_err(sig, argv[1]); 22780e82dc7bSMax Reitz return 0; 22799b0beaf3SJohn Snow } else if (sig > NSIG) { 22809b0beaf3SJohn Snow printf("signal argument '%s' is too large to be a valid signal\n", 22819b0beaf3SJohn Snow argv[1]); 22829b0beaf3SJohn Snow return 0; 22830e82dc7bSMax Reitz } 22840e82dc7bSMax Reitz 22850e82dc7bSMax Reitz /* Using raise() to kill this process does not necessarily flush all open 22860e82dc7bSMax Reitz * streams. At least stdout and stderr (although the latter should be 22870e82dc7bSMax Reitz * non-buffered anyway) should be flushed, though. */ 22880e82dc7bSMax Reitz fflush(stdout); 22890e82dc7bSMax Reitz fflush(stderr); 22900e82dc7bSMax Reitz 22910e82dc7bSMax Reitz raise(sig); 22920e82dc7bSMax Reitz return 0; 22930e82dc7bSMax Reitz } 22940e82dc7bSMax Reitz 2295cd33d02aSKevin Wolf static void sleep_cb(void *opaque) 2296cd33d02aSKevin Wolf { 2297cd33d02aSKevin Wolf bool *expired = opaque; 2298cd33d02aSKevin Wolf *expired = true; 2299cd33d02aSKevin Wolf } 2300cd33d02aSKevin Wolf 23014c7b7e9bSMax Reitz static int sleep_f(BlockBackend *blk, int argc, char **argv) 2302cd33d02aSKevin Wolf { 2303cd33d02aSKevin Wolf char *endptr; 2304cd33d02aSKevin Wolf long ms; 2305cd33d02aSKevin Wolf struct QEMUTimer *timer; 2306cd33d02aSKevin Wolf bool expired = false; 2307cd33d02aSKevin Wolf 2308cd33d02aSKevin Wolf ms = strtol(argv[1], &endptr, 0); 2309cd33d02aSKevin Wolf if (ms < 0 || *endptr != '\0') { 2310cd33d02aSKevin Wolf printf("%s is not a valid number\n", argv[1]); 2311cd33d02aSKevin Wolf return 0; 2312cd33d02aSKevin Wolf } 2313cd33d02aSKevin Wolf 2314cd33d02aSKevin Wolf timer = timer_new_ns(QEMU_CLOCK_HOST, sleep_cb, &expired); 2315cd33d02aSKevin Wolf timer_mod(timer, qemu_clock_get_ns(QEMU_CLOCK_HOST) + SCALE_MS * ms); 2316cd33d02aSKevin Wolf 2317cd33d02aSKevin Wolf while (!expired) { 2318cd33d02aSKevin Wolf main_loop_wait(false); 2319cd33d02aSKevin Wolf } 2320cd33d02aSKevin Wolf 2321cd33d02aSKevin Wolf timer_free(timer); 2322cd33d02aSKevin Wolf 2323cd33d02aSKevin Wolf return 0; 2324cd33d02aSKevin Wolf } 2325cd33d02aSKevin Wolf 2326cd33d02aSKevin Wolf static const cmdinfo_t sleep_cmd = { 2327cd33d02aSKevin Wolf .name = "sleep", 2328cd33d02aSKevin Wolf .argmin = 1, 2329cd33d02aSKevin Wolf .argmax = 1, 2330cd33d02aSKevin Wolf .cfunc = sleep_f, 2331cd33d02aSKevin Wolf .flags = CMD_NOFILE_OK, 2332cd33d02aSKevin Wolf .oneline = "waits for the given value in milliseconds", 2333cd33d02aSKevin Wolf }; 2334cd33d02aSKevin Wolf 2335f18a834aSKevin Wolf static void help_oneline(const char *cmd, const cmdinfo_t *ct) 2336f18a834aSKevin Wolf { 2337f18a834aSKevin Wolf if (cmd) { 2338f18a834aSKevin Wolf printf("%s ", cmd); 2339f18a834aSKevin Wolf } else { 2340f18a834aSKevin Wolf printf("%s ", ct->name); 2341f18a834aSKevin Wolf if (ct->altname) { 2342f18a834aSKevin Wolf printf("(or %s) ", ct->altname); 2343f18a834aSKevin Wolf } 2344f18a834aSKevin Wolf } 2345f18a834aSKevin Wolf 2346f18a834aSKevin Wolf if (ct->args) { 2347f18a834aSKevin Wolf printf("%s ", ct->args); 2348f18a834aSKevin Wolf } 2349f18a834aSKevin Wolf printf("-- %s\n", ct->oneline); 2350f18a834aSKevin Wolf } 2351f18a834aSKevin Wolf 2352f18a834aSKevin Wolf static void help_onecmd(const char *cmd, const cmdinfo_t *ct) 2353f18a834aSKevin Wolf { 2354f18a834aSKevin Wolf help_oneline(cmd, ct); 2355f18a834aSKevin Wolf if (ct->help) { 2356f18a834aSKevin Wolf ct->help(); 2357f18a834aSKevin Wolf } 2358f18a834aSKevin Wolf } 2359f18a834aSKevin Wolf 2360f18a834aSKevin Wolf static void help_all(void) 2361f18a834aSKevin Wolf { 2362f18a834aSKevin Wolf const cmdinfo_t *ct; 2363f18a834aSKevin Wolf 2364f18a834aSKevin Wolf for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { 2365f18a834aSKevin Wolf help_oneline(ct->name, ct); 2366f18a834aSKevin Wolf } 2367f18a834aSKevin Wolf printf("\nUse 'help commandname' for extended help.\n"); 2368f18a834aSKevin Wolf } 2369f18a834aSKevin Wolf 23704c7b7e9bSMax Reitz static int help_f(BlockBackend *blk, int argc, char **argv) 2371f18a834aSKevin Wolf { 2372f18a834aSKevin Wolf const cmdinfo_t *ct; 2373f18a834aSKevin Wolf 2374f18a834aSKevin Wolf if (argc == 1) { 2375f18a834aSKevin Wolf help_all(); 2376f18a834aSKevin Wolf return 0; 2377f18a834aSKevin Wolf } 2378f18a834aSKevin Wolf 2379f18a834aSKevin Wolf ct = find_command(argv[1]); 2380f18a834aSKevin Wolf if (ct == NULL) { 2381f18a834aSKevin Wolf printf("command %s not found\n", argv[1]); 2382f18a834aSKevin Wolf return 0; 2383f18a834aSKevin Wolf } 2384f18a834aSKevin Wolf 2385f18a834aSKevin Wolf help_onecmd(argv[1], ct); 2386f18a834aSKevin Wolf return 0; 2387f18a834aSKevin Wolf } 2388f18a834aSKevin Wolf 2389f18a834aSKevin Wolf static const cmdinfo_t help_cmd = { 2390f18a834aSKevin Wolf .name = "help", 2391f18a834aSKevin Wolf .altname = "?", 2392f18a834aSKevin Wolf .cfunc = help_f, 2393f18a834aSKevin Wolf .argmin = 0, 2394f18a834aSKevin Wolf .argmax = 1, 2395f18a834aSKevin Wolf .flags = CMD_FLAG_GLOBAL, 2396f18a834aSKevin Wolf .args = "[command]", 2397f18a834aSKevin Wolf .oneline = "help for one or all commands", 2398f18a834aSKevin Wolf }; 2399f18a834aSKevin Wolf 24004c7b7e9bSMax Reitz bool qemuio_command(BlockBackend *blk, const char *cmd) 2401dd583296SKevin Wolf { 2402dd583296SKevin Wolf char *input; 2403dd583296SKevin Wolf const cmdinfo_t *ct; 2404dd583296SKevin Wolf char **v; 2405dd583296SKevin Wolf int c; 2406dd583296SKevin Wolf bool done = false; 2407dd583296SKevin Wolf 2408dd583296SKevin Wolf input = g_strdup(cmd); 2409dd583296SKevin Wolf v = breakline(input, &c); 2410dd583296SKevin Wolf if (c) { 2411dd583296SKevin Wolf ct = find_command(v[0]); 2412dd583296SKevin Wolf if (ct) { 24134c7b7e9bSMax Reitz done = command(blk, ct, c, v); 2414dd583296SKevin Wolf } else { 2415dd583296SKevin Wolf fprintf(stderr, "command \"%s\" not found\n", v[0]); 2416dd583296SKevin Wolf } 2417dd583296SKevin Wolf } 2418dd583296SKevin Wolf g_free(input); 2419dd583296SKevin Wolf g_free(v); 2420dd583296SKevin Wolf 2421dd583296SKevin Wolf return done; 2422dd583296SKevin Wolf } 2423dd583296SKevin Wolf 2424797ac58cSKevin Wolf static void __attribute((constructor)) init_qemuio_commands(void) 2425797ac58cSKevin Wolf { 2426797ac58cSKevin Wolf /* initialize commands */ 2427c2cdf5c5SKevin Wolf qemuio_add_command(&help_cmd); 2428c2cdf5c5SKevin Wolf qemuio_add_command(&read_cmd); 2429c2cdf5c5SKevin Wolf qemuio_add_command(&readv_cmd); 2430c2cdf5c5SKevin Wolf qemuio_add_command(&write_cmd); 2431c2cdf5c5SKevin Wolf qemuio_add_command(&writev_cmd); 2432c2cdf5c5SKevin Wolf qemuio_add_command(&multiwrite_cmd); 2433c2cdf5c5SKevin Wolf qemuio_add_command(&aio_read_cmd); 2434c2cdf5c5SKevin Wolf qemuio_add_command(&aio_write_cmd); 2435c2cdf5c5SKevin Wolf qemuio_add_command(&aio_flush_cmd); 2436c2cdf5c5SKevin Wolf qemuio_add_command(&flush_cmd); 2437c2cdf5c5SKevin Wolf qemuio_add_command(&truncate_cmd); 2438c2cdf5c5SKevin Wolf qemuio_add_command(&length_cmd); 2439c2cdf5c5SKevin Wolf qemuio_add_command(&info_cmd); 2440c2cdf5c5SKevin Wolf qemuio_add_command(&discard_cmd); 2441c2cdf5c5SKevin Wolf qemuio_add_command(&alloc_cmd); 2442c2cdf5c5SKevin Wolf qemuio_add_command(&map_cmd); 24435bbd2e59SKevin Wolf qemuio_add_command(&reopen_cmd); 2444c2cdf5c5SKevin Wolf qemuio_add_command(&break_cmd); 24454cc70e93SFam Zheng qemuio_add_command(&remove_break_cmd); 2446c2cdf5c5SKevin Wolf qemuio_add_command(&resume_cmd); 2447c2cdf5c5SKevin Wolf qemuio_add_command(&wait_break_cmd); 2448c2cdf5c5SKevin Wolf qemuio_add_command(&abort_cmd); 2449cd33d02aSKevin Wolf qemuio_add_command(&sleep_cmd); 24500e82dc7bSMax Reitz qemuio_add_command(&sigraise_cmd); 2451797ac58cSKevin Wolf } 2452