1797ac58cSKevin Wolf /* 2797ac58cSKevin Wolf * Command line utility to exercise the QEMU I/O path. 3797ac58cSKevin Wolf * 4093ea232SEric Blake * Copyright (C) 2009-2016 Red Hat, Inc. 5797ac58cSKevin Wolf * Copyright (c) 2003-2005 Silicon Graphics, Inc. 6797ac58cSKevin Wolf * 7797ac58cSKevin Wolf * This work is licensed under the terms of the GNU GPL, version 2 or later. 8797ac58cSKevin Wolf * See the COPYING file in the top-level directory. 9797ac58cSKevin Wolf */ 10797ac58cSKevin Wolf 1180c71a24SPeter Maydell #include "qemu/osdep.h" 12da34e65cSMarkus Armbruster #include "qapi/error.h" 13dc900c35SAlberto Garcia #include "qapi/qmp/qdict.h" 143d21994fSKevin Wolf #include "qemu-io.h" 154c7b7e9bSMax Reitz #include "sysemu/block-backend.h" 164c7b7e9bSMax Reitz #include "block/block.h" 174c7b7e9bSMax Reitz #include "block/block_int.h" /* for info_f() */ 18a8d8ecb7SMax Reitz #include "block/qapi.h" 19d49b6836SMarkus Armbruster #include "qemu/error-report.h" 206a1751b7SAlex Bligh #include "qemu/main-loop.h" 21922a01a0SMarkus Armbruster #include "qemu/option.h" 22cd33d02aSKevin Wolf #include "qemu/timer.h" 23f348b6d1SVeronia Bahaa #include "qemu/cutils.h" 24797ac58cSKevin Wolf 25797ac58cSKevin Wolf #define CMD_NOFILE_OK 0x01 26797ac58cSKevin Wolf 27f9883880SStefan Weil bool qemuio_misalign; 28797ac58cSKevin Wolf 29c2cdf5c5SKevin Wolf static cmdinfo_t *cmdtab; 30c2cdf5c5SKevin Wolf static int ncmds; 31c2cdf5c5SKevin Wolf 32c2cdf5c5SKevin Wolf static int compare_cmdname(const void *a, const void *b) 33c2cdf5c5SKevin Wolf { 34c2cdf5c5SKevin Wolf return strcmp(((const cmdinfo_t *)a)->name, 35c2cdf5c5SKevin Wolf ((const cmdinfo_t *)b)->name); 36c2cdf5c5SKevin Wolf } 37c2cdf5c5SKevin Wolf 38c2cdf5c5SKevin Wolf void qemuio_add_command(const cmdinfo_t *ci) 39c2cdf5c5SKevin Wolf { 406aabeb58SPeter Maydell /* ci->perm assumes a file is open, but the GLOBAL and NOFILE_OK 416aabeb58SPeter Maydell * flags allow it not to be, so that combination is invalid. 426aabeb58SPeter Maydell * Catch it now rather than letting it manifest as a crash if a 436aabeb58SPeter Maydell * particular set of command line options are used. 446aabeb58SPeter Maydell */ 456aabeb58SPeter Maydell assert(ci->perm == 0 || 466aabeb58SPeter Maydell (ci->flags & (CMD_FLAG_GLOBAL | CMD_NOFILE_OK)) == 0); 4702c4f26bSMarkus Armbruster cmdtab = g_renew(cmdinfo_t, cmdtab, ++ncmds); 48c2cdf5c5SKevin Wolf cmdtab[ncmds - 1] = *ci; 49c2cdf5c5SKevin Wolf qsort(cmdtab, ncmds, sizeof(*cmdtab), compare_cmdname); 50c2cdf5c5SKevin Wolf } 51c2cdf5c5SKevin Wolf 52b444d0e9SMax Reitz void qemuio_command_usage(const cmdinfo_t *ci) 53c2cdf5c5SKevin Wolf { 54c2cdf5c5SKevin Wolf printf("%s %s -- %s\n", ci->name, ci->args, ci->oneline); 55c2cdf5c5SKevin Wolf } 56c2cdf5c5SKevin Wolf 574c7b7e9bSMax Reitz static int init_check_command(BlockBackend *blk, const cmdinfo_t *ct) 58c2cdf5c5SKevin Wolf { 59c2cdf5c5SKevin Wolf if (ct->flags & CMD_FLAG_GLOBAL) { 60c2cdf5c5SKevin Wolf return 1; 61c2cdf5c5SKevin Wolf } 624c7b7e9bSMax Reitz if (!(ct->flags & CMD_NOFILE_OK) && !blk) { 63c2cdf5c5SKevin Wolf fprintf(stderr, "no file open, try 'help open'\n"); 64c2cdf5c5SKevin Wolf return 0; 65c2cdf5c5SKevin Wolf } 66c2cdf5c5SKevin Wolf return 1; 67c2cdf5c5SKevin Wolf } 68c2cdf5c5SKevin Wolf 69b32d7a39SMax Reitz static int command(BlockBackend *blk, const cmdinfo_t *ct, int argc, 703d21994fSKevin Wolf char **argv) 71c2cdf5c5SKevin Wolf { 72c2cdf5c5SKevin Wolf char *cmd = argv[0]; 73c2cdf5c5SKevin Wolf 744c7b7e9bSMax Reitz if (!init_check_command(blk, ct)) { 75b32d7a39SMax Reitz return -EINVAL; 76c2cdf5c5SKevin Wolf } 77c2cdf5c5SKevin Wolf 78c2cdf5c5SKevin Wolf if (argc - 1 < ct->argmin || (ct->argmax != -1 && argc - 1 > ct->argmax)) { 79c2cdf5c5SKevin Wolf if (ct->argmax == -1) { 80c2cdf5c5SKevin Wolf fprintf(stderr, 81c2cdf5c5SKevin Wolf "bad argument count %d to %s, expected at least %d arguments\n", 82c2cdf5c5SKevin Wolf argc-1, cmd, ct->argmin); 83c2cdf5c5SKevin Wolf } else if (ct->argmin == ct->argmax) { 84c2cdf5c5SKevin Wolf fprintf(stderr, 85c2cdf5c5SKevin Wolf "bad argument count %d to %s, expected %d arguments\n", 86c2cdf5c5SKevin Wolf argc-1, cmd, ct->argmin); 87c2cdf5c5SKevin Wolf } else { 88c2cdf5c5SKevin Wolf fprintf(stderr, 89c2cdf5c5SKevin Wolf "bad argument count %d to %s, expected between %d and %d arguments\n", 90c2cdf5c5SKevin Wolf argc-1, cmd, ct->argmin, ct->argmax); 91c2cdf5c5SKevin Wolf } 92b32d7a39SMax Reitz return -EINVAL; 93c2cdf5c5SKevin Wolf } 94887354bdSKevin Wolf 95887354bdSKevin Wolf /* Request additional permissions if necessary for this command. The caller 96887354bdSKevin Wolf * is responsible for restoring the original permissions afterwards if this 97887354bdSKevin Wolf * is what it wants. */ 98887354bdSKevin Wolf if (ct->perm && blk_is_available(blk)) { 99887354bdSKevin Wolf uint64_t orig_perm, orig_shared_perm; 100887354bdSKevin Wolf blk_get_perm(blk, &orig_perm, &orig_shared_perm); 101887354bdSKevin Wolf 102887354bdSKevin Wolf if (ct->perm & ~orig_perm) { 103887354bdSKevin Wolf uint64_t new_perm; 104887354bdSKevin Wolf Error *local_err = NULL; 105887354bdSKevin Wolf int ret; 106887354bdSKevin Wolf 107887354bdSKevin Wolf new_perm = orig_perm | ct->perm; 108887354bdSKevin Wolf 109887354bdSKevin Wolf ret = blk_set_perm(blk, new_perm, orig_shared_perm, &local_err); 110887354bdSKevin Wolf if (ret < 0) { 111887354bdSKevin Wolf error_report_err(local_err); 112b32d7a39SMax Reitz return ret; 113887354bdSKevin Wolf } 114887354bdSKevin Wolf } 115887354bdSKevin Wolf } 116887354bdSKevin Wolf 117*d339d766SRichard W.M. Jones qemu_reset_optind(); 118b32d7a39SMax Reitz return ct->cfunc(blk, argc, argv); 119c2cdf5c5SKevin Wolf } 120c2cdf5c5SKevin Wolf 121c2cdf5c5SKevin Wolf static const cmdinfo_t *find_command(const char *cmd) 122c2cdf5c5SKevin Wolf { 123c2cdf5c5SKevin Wolf cmdinfo_t *ct; 124c2cdf5c5SKevin Wolf 125c2cdf5c5SKevin Wolf for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { 126c2cdf5c5SKevin Wolf if (strcmp(ct->name, cmd) == 0 || 127c2cdf5c5SKevin Wolf (ct->altname && strcmp(ct->altname, cmd) == 0)) 128c2cdf5c5SKevin Wolf { 129c2cdf5c5SKevin Wolf return (const cmdinfo_t *)ct; 130c2cdf5c5SKevin Wolf } 131c2cdf5c5SKevin Wolf } 132c2cdf5c5SKevin Wolf return NULL; 133c2cdf5c5SKevin Wolf } 134c2cdf5c5SKevin Wolf 1354694020dSStefan Hajnoczi /* Invoke fn() for commands with a matching prefix */ 1364694020dSStefan Hajnoczi void qemuio_complete_command(const char *input, 1374694020dSStefan Hajnoczi void (*fn)(const char *cmd, void *opaque), 1384694020dSStefan Hajnoczi void *opaque) 1394694020dSStefan Hajnoczi { 1404694020dSStefan Hajnoczi cmdinfo_t *ct; 1414694020dSStefan Hajnoczi size_t input_len = strlen(input); 1424694020dSStefan Hajnoczi 1434694020dSStefan Hajnoczi for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { 1444694020dSStefan Hajnoczi if (strncmp(input, ct->name, input_len) == 0) { 1454694020dSStefan Hajnoczi fn(ct->name, opaque); 1464694020dSStefan Hajnoczi } 1474694020dSStefan Hajnoczi } 1484694020dSStefan Hajnoczi } 1494694020dSStefan Hajnoczi 150c2cdf5c5SKevin Wolf static char **breakline(char *input, int *count) 151c2cdf5c5SKevin Wolf { 152c2cdf5c5SKevin Wolf int c = 0; 153c2cdf5c5SKevin Wolf char *p; 1545839e53bSMarkus Armbruster char **rval = g_new0(char *, 1); 155c2cdf5c5SKevin Wolf 156c2cdf5c5SKevin Wolf while (rval && (p = qemu_strsep(&input, " ")) != NULL) { 157c2cdf5c5SKevin Wolf if (!*p) { 158c2cdf5c5SKevin Wolf continue; 159c2cdf5c5SKevin Wolf } 160c2cdf5c5SKevin Wolf c++; 16108193dd5SMarkus Armbruster rval = g_renew(char *, rval, (c + 1)); 162c2cdf5c5SKevin Wolf rval[c - 1] = p; 163c2cdf5c5SKevin Wolf rval[c] = NULL; 164c2cdf5c5SKevin Wolf } 165c2cdf5c5SKevin Wolf *count = c; 166c2cdf5c5SKevin Wolf return rval; 167c2cdf5c5SKevin Wolf } 168c2cdf5c5SKevin Wolf 169797ac58cSKevin Wolf static int64_t cvtnum(const char *s) 170797ac58cSKevin Wolf { 171f17fd4fdSMarkus Armbruster int err; 172f46bfdbfSMarkus Armbruster uint64_t value; 173ef5a7885SJohn Snow 174f17fd4fdSMarkus Armbruster err = qemu_strtosz(s, NULL, &value); 175f17fd4fdSMarkus Armbruster if (err < 0) { 176f17fd4fdSMarkus Armbruster return err; 177f17fd4fdSMarkus Armbruster } 178f46bfdbfSMarkus Armbruster if (value > INT64_MAX) { 179f46bfdbfSMarkus Armbruster return -ERANGE; 180f46bfdbfSMarkus Armbruster } 181f17fd4fdSMarkus Armbruster return value; 182797ac58cSKevin Wolf } 183797ac58cSKevin Wolf 184a9ecfa00SJohn Snow static void print_cvtnum_err(int64_t rc, const char *arg) 185a9ecfa00SJohn Snow { 186a9ecfa00SJohn Snow switch (rc) { 187a9ecfa00SJohn Snow case -EINVAL: 188a9ecfa00SJohn Snow printf("Parsing error: non-numeric argument," 189a9ecfa00SJohn Snow " or extraneous/unrecognized suffix -- %s\n", arg); 190a9ecfa00SJohn Snow break; 191a9ecfa00SJohn Snow case -ERANGE: 192a9ecfa00SJohn Snow printf("Parsing error: argument too large -- %s\n", arg); 193a9ecfa00SJohn Snow break; 194a9ecfa00SJohn Snow default: 195a9ecfa00SJohn Snow printf("Parsing error: %s\n", arg); 196a9ecfa00SJohn Snow } 197a9ecfa00SJohn Snow } 198a9ecfa00SJohn Snow 1990b613881SKevin Wolf #define EXABYTES(x) ((long long)(x) << 60) 2000b613881SKevin Wolf #define PETABYTES(x) ((long long)(x) << 50) 2010b613881SKevin Wolf #define TERABYTES(x) ((long long)(x) << 40) 2020b613881SKevin Wolf #define GIGABYTES(x) ((long long)(x) << 30) 2030b613881SKevin Wolf #define MEGABYTES(x) ((long long)(x) << 20) 2040b613881SKevin Wolf #define KILOBYTES(x) ((long long)(x) << 10) 2050b613881SKevin Wolf 2060b613881SKevin Wolf #define TO_EXABYTES(x) ((x) / EXABYTES(1)) 2070b613881SKevin Wolf #define TO_PETABYTES(x) ((x) / PETABYTES(1)) 2080b613881SKevin Wolf #define TO_TERABYTES(x) ((x) / TERABYTES(1)) 2090b613881SKevin Wolf #define TO_GIGABYTES(x) ((x) / GIGABYTES(1)) 2100b613881SKevin Wolf #define TO_MEGABYTES(x) ((x) / MEGABYTES(1)) 2110b613881SKevin Wolf #define TO_KILOBYTES(x) ((x) / KILOBYTES(1)) 2120b613881SKevin Wolf 2130b613881SKevin Wolf static void cvtstr(double value, char *str, size_t size) 2140b613881SKevin Wolf { 2150b613881SKevin Wolf char *trim; 2160b613881SKevin Wolf const char *suffix; 2170b613881SKevin Wolf 2180b613881SKevin Wolf if (value >= EXABYTES(1)) { 2190b613881SKevin Wolf suffix = " EiB"; 2200b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_EXABYTES(value)); 2210b613881SKevin Wolf } else if (value >= PETABYTES(1)) { 2220b613881SKevin Wolf suffix = " PiB"; 2230b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_PETABYTES(value)); 2240b613881SKevin Wolf } else if (value >= TERABYTES(1)) { 2250b613881SKevin Wolf suffix = " TiB"; 2260b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_TERABYTES(value)); 2270b613881SKevin Wolf } else if (value >= GIGABYTES(1)) { 2280b613881SKevin Wolf suffix = " GiB"; 2290b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_GIGABYTES(value)); 2300b613881SKevin Wolf } else if (value >= MEGABYTES(1)) { 2310b613881SKevin Wolf suffix = " MiB"; 2320b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_MEGABYTES(value)); 2330b613881SKevin Wolf } else if (value >= KILOBYTES(1)) { 2340b613881SKevin Wolf suffix = " KiB"; 2350b613881SKevin Wolf snprintf(str, size - 4, "%.3f", TO_KILOBYTES(value)); 2360b613881SKevin Wolf } else { 2370b613881SKevin Wolf suffix = " bytes"; 2380b613881SKevin Wolf snprintf(str, size - 6, "%f", value); 2390b613881SKevin Wolf } 2400b613881SKevin Wolf 2410b613881SKevin Wolf trim = strstr(str, ".000"); 2420b613881SKevin Wolf if (trim) { 2430b613881SKevin Wolf strcpy(trim, suffix); 2440b613881SKevin Wolf } else { 2450b613881SKevin Wolf strcat(str, suffix); 2460b613881SKevin Wolf } 2470b613881SKevin Wolf } 2480b613881SKevin Wolf 2490b613881SKevin Wolf 2500b613881SKevin Wolf 2510b613881SKevin Wolf static struct timeval tsub(struct timeval t1, struct timeval t2) 2520b613881SKevin Wolf { 2530b613881SKevin Wolf t1.tv_usec -= t2.tv_usec; 2540b613881SKevin Wolf if (t1.tv_usec < 0) { 2550b613881SKevin Wolf t1.tv_usec += 1000000; 2560b613881SKevin Wolf t1.tv_sec--; 2570b613881SKevin Wolf } 2580b613881SKevin Wolf t1.tv_sec -= t2.tv_sec; 2590b613881SKevin Wolf return t1; 2600b613881SKevin Wolf } 2610b613881SKevin Wolf 2620b613881SKevin Wolf static double tdiv(double value, struct timeval tv) 2630b613881SKevin Wolf { 2640b613881SKevin Wolf return value / ((double)tv.tv_sec + ((double)tv.tv_usec / 1000000.0)); 2650b613881SKevin Wolf } 2660b613881SKevin Wolf 2670b613881SKevin Wolf #define HOURS(sec) ((sec) / (60 * 60)) 2680b613881SKevin Wolf #define MINUTES(sec) (((sec) % (60 * 60)) / 60) 2690b613881SKevin Wolf #define SECONDS(sec) ((sec) % 60) 2700b613881SKevin Wolf 2710b613881SKevin Wolf enum { 2720b613881SKevin Wolf DEFAULT_TIME = 0x0, 2730b613881SKevin Wolf TERSE_FIXED_TIME = 0x1, 2740b613881SKevin Wolf VERBOSE_FIXED_TIME = 0x2, 2750b613881SKevin Wolf }; 2760b613881SKevin Wolf 2770b613881SKevin Wolf static void timestr(struct timeval *tv, char *ts, size_t size, int format) 2780b613881SKevin Wolf { 2790b613881SKevin Wolf double usec = (double)tv->tv_usec / 1000000.0; 2800b613881SKevin Wolf 2810b613881SKevin Wolf if (format & TERSE_FIXED_TIME) { 2820b613881SKevin Wolf if (!HOURS(tv->tv_sec)) { 2830b613881SKevin Wolf snprintf(ts, size, "%u:%02u.%02u", 2840b613881SKevin Wolf (unsigned int) MINUTES(tv->tv_sec), 2850b613881SKevin Wolf (unsigned int) SECONDS(tv->tv_sec), 2860b613881SKevin Wolf (unsigned int) (usec * 100)); 2870b613881SKevin Wolf return; 2880b613881SKevin Wolf } 2890b613881SKevin Wolf format |= VERBOSE_FIXED_TIME; /* fallback if hours needed */ 2900b613881SKevin Wolf } 2910b613881SKevin Wolf 2920b613881SKevin Wolf if ((format & VERBOSE_FIXED_TIME) || tv->tv_sec) { 2930b613881SKevin Wolf snprintf(ts, size, "%u:%02u:%02u.%02u", 2940b613881SKevin Wolf (unsigned int) HOURS(tv->tv_sec), 2950b613881SKevin Wolf (unsigned int) MINUTES(tv->tv_sec), 2960b613881SKevin Wolf (unsigned int) SECONDS(tv->tv_sec), 2970b613881SKevin Wolf (unsigned int) (usec * 100)); 2980b613881SKevin Wolf } else { 2990b613881SKevin Wolf snprintf(ts, size, "0.%04u sec", (unsigned int) (usec * 10000)); 3000b613881SKevin Wolf } 3010b613881SKevin Wolf } 3020b613881SKevin Wolf 303797ac58cSKevin Wolf /* 304797ac58cSKevin Wolf * Parse the pattern argument to various sub-commands. 305797ac58cSKevin Wolf * 306797ac58cSKevin Wolf * Because the pattern is used as an argument to memset it must evaluate 307797ac58cSKevin Wolf * to an unsigned integer that fits into a single byte. 308797ac58cSKevin Wolf */ 309797ac58cSKevin Wolf static int parse_pattern(const char *arg) 310797ac58cSKevin Wolf { 311797ac58cSKevin Wolf char *endptr = NULL; 312797ac58cSKevin Wolf long pattern; 313797ac58cSKevin Wolf 314797ac58cSKevin Wolf pattern = strtol(arg, &endptr, 0); 315797ac58cSKevin Wolf if (pattern < 0 || pattern > UCHAR_MAX || *endptr != '\0') { 316797ac58cSKevin Wolf printf("%s is not a valid pattern byte\n", arg); 317797ac58cSKevin Wolf return -1; 318797ac58cSKevin Wolf } 319797ac58cSKevin Wolf 320797ac58cSKevin Wolf return pattern; 321797ac58cSKevin Wolf } 322797ac58cSKevin Wolf 323797ac58cSKevin Wolf /* 324797ac58cSKevin Wolf * Memory allocation helpers. 325797ac58cSKevin Wolf * 326797ac58cSKevin Wolf * Make sure memory is aligned by default, or purposefully misaligned if 327797ac58cSKevin Wolf * that is specified on the command line. 328797ac58cSKevin Wolf */ 329797ac58cSKevin Wolf 330797ac58cSKevin Wolf #define MISALIGN_OFFSET 16 3314c7b7e9bSMax Reitz static void *qemu_io_alloc(BlockBackend *blk, size_t len, int pattern) 332797ac58cSKevin Wolf { 333797ac58cSKevin Wolf void *buf; 334797ac58cSKevin Wolf 335797ac58cSKevin Wolf if (qemuio_misalign) { 336797ac58cSKevin Wolf len += MISALIGN_OFFSET; 337797ac58cSKevin Wolf } 3384c7b7e9bSMax Reitz buf = blk_blockalign(blk, len); 339797ac58cSKevin Wolf memset(buf, pattern, len); 340797ac58cSKevin Wolf if (qemuio_misalign) { 341797ac58cSKevin Wolf buf += MISALIGN_OFFSET; 342797ac58cSKevin Wolf } 343797ac58cSKevin Wolf return buf; 344797ac58cSKevin Wolf } 345797ac58cSKevin Wolf 346797ac58cSKevin Wolf static void qemu_io_free(void *p) 347797ac58cSKevin Wolf { 348797ac58cSKevin Wolf if (qemuio_misalign) { 349797ac58cSKevin Wolf p -= MISALIGN_OFFSET; 350797ac58cSKevin Wolf } 351797ac58cSKevin Wolf qemu_vfree(p); 352797ac58cSKevin Wolf } 353797ac58cSKevin Wolf 3549b0beaf3SJohn Snow static void dump_buffer(const void *buffer, int64_t offset, int64_t len) 355797ac58cSKevin Wolf { 3569b0beaf3SJohn Snow uint64_t i; 3579b0beaf3SJohn Snow int j; 358797ac58cSKevin Wolf const uint8_t *p; 359797ac58cSKevin Wolf 360797ac58cSKevin Wolf for (i = 0, p = buffer; i < len; i += 16) { 361797ac58cSKevin Wolf const uint8_t *s = p; 362797ac58cSKevin Wolf 363797ac58cSKevin Wolf printf("%08" PRIx64 ": ", offset + i); 364797ac58cSKevin Wolf for (j = 0; j < 16 && i + j < len; j++, p++) { 365797ac58cSKevin Wolf printf("%02x ", *p); 366797ac58cSKevin Wolf } 367797ac58cSKevin Wolf printf(" "); 368797ac58cSKevin Wolf for (j = 0; j < 16 && i + j < len; j++, s++) { 369797ac58cSKevin Wolf if (isalnum(*s)) { 370797ac58cSKevin Wolf printf("%c", *s); 371797ac58cSKevin Wolf } else { 372797ac58cSKevin Wolf printf("."); 373797ac58cSKevin Wolf } 374797ac58cSKevin Wolf } 375797ac58cSKevin Wolf printf("\n"); 376797ac58cSKevin Wolf } 377797ac58cSKevin Wolf } 378797ac58cSKevin Wolf 379797ac58cSKevin Wolf static void print_report(const char *op, struct timeval *t, int64_t offset, 380dc38852aSEric Blake int64_t count, int64_t total, int cnt, bool Cflag) 381797ac58cSKevin Wolf { 382797ac58cSKevin Wolf char s1[64], s2[64], ts[64]; 383797ac58cSKevin Wolf 384797ac58cSKevin Wolf timestr(t, ts, sizeof(ts), Cflag ? VERBOSE_FIXED_TIME : 0); 385797ac58cSKevin Wolf if (!Cflag) { 386797ac58cSKevin Wolf cvtstr((double)total, s1, sizeof(s1)); 387797ac58cSKevin Wolf cvtstr(tdiv((double)total, *t), s2, sizeof(s2)); 3889b0beaf3SJohn Snow printf("%s %"PRId64"/%"PRId64" bytes at offset %" PRId64 "\n", 389797ac58cSKevin Wolf op, total, count, offset); 390797ac58cSKevin Wolf printf("%s, %d ops; %s (%s/sec and %.4f ops/sec)\n", 391797ac58cSKevin Wolf s1, cnt, ts, s2, tdiv((double)cnt, *t)); 392797ac58cSKevin Wolf } else {/* bytes,ops,time,bytes/sec,ops/sec */ 3939b0beaf3SJohn Snow printf("%"PRId64",%d,%s,%.3f,%.3f\n", 394797ac58cSKevin Wolf total, cnt, ts, 395797ac58cSKevin Wolf tdiv((double)total, *t), 396797ac58cSKevin Wolf tdiv((double)cnt, *t)); 397797ac58cSKevin Wolf } 398797ac58cSKevin Wolf } 399797ac58cSKevin Wolf 400797ac58cSKevin Wolf /* 401797ac58cSKevin Wolf * Parse multiple length statements for vectored I/O, and construct an I/O 402797ac58cSKevin Wolf * vector matching it. 403797ac58cSKevin Wolf */ 404797ac58cSKevin Wolf static void * 4054c7b7e9bSMax Reitz create_iovec(BlockBackend *blk, QEMUIOVector *qiov, char **argv, int nr_iov, 406797ac58cSKevin Wolf int pattern) 407797ac58cSKevin Wolf { 408797ac58cSKevin Wolf size_t *sizes = g_new0(size_t, nr_iov); 409797ac58cSKevin Wolf size_t count = 0; 410797ac58cSKevin Wolf void *buf = NULL; 411797ac58cSKevin Wolf void *p; 412797ac58cSKevin Wolf int i; 413797ac58cSKevin Wolf 414797ac58cSKevin Wolf for (i = 0; i < nr_iov; i++) { 415797ac58cSKevin Wolf char *arg = argv[i]; 416797ac58cSKevin Wolf int64_t len; 417797ac58cSKevin Wolf 418797ac58cSKevin Wolf len = cvtnum(arg); 419797ac58cSKevin Wolf if (len < 0) { 420a9ecfa00SJohn Snow print_cvtnum_err(len, arg); 421797ac58cSKevin Wolf goto fail; 422797ac58cSKevin Wolf } 423797ac58cSKevin Wolf 4243026c468SAlberto Garcia if (len > BDRV_REQUEST_MAX_BYTES) { 4253026c468SAlberto Garcia printf("Argument '%s' exceeds maximum size %" PRIu64 "\n", arg, 4263026c468SAlberto Garcia (uint64_t)BDRV_REQUEST_MAX_BYTES); 4273026c468SAlberto Garcia goto fail; 4283026c468SAlberto Garcia } 4293026c468SAlberto Garcia 4303026c468SAlberto Garcia if (count > BDRV_REQUEST_MAX_BYTES - len) { 4313026c468SAlberto Garcia printf("The total number of bytes exceed the maximum size %" PRIu64 4323026c468SAlberto Garcia "\n", (uint64_t)BDRV_REQUEST_MAX_BYTES); 433797ac58cSKevin Wolf goto fail; 434797ac58cSKevin Wolf } 435797ac58cSKevin Wolf 436797ac58cSKevin Wolf sizes[i] = len; 437797ac58cSKevin Wolf count += len; 438797ac58cSKevin Wolf } 439797ac58cSKevin Wolf 440797ac58cSKevin Wolf qemu_iovec_init(qiov, nr_iov); 441797ac58cSKevin Wolf 4424c7b7e9bSMax Reitz buf = p = qemu_io_alloc(blk, count, pattern); 443797ac58cSKevin Wolf 444797ac58cSKevin Wolf for (i = 0; i < nr_iov; i++) { 445797ac58cSKevin Wolf qemu_iovec_add(qiov, p, sizes[i]); 446797ac58cSKevin Wolf p += sizes[i]; 447797ac58cSKevin Wolf } 448797ac58cSKevin Wolf 449797ac58cSKevin Wolf fail: 450797ac58cSKevin Wolf g_free(sizes); 451797ac58cSKevin Wolf return buf; 452797ac58cSKevin Wolf } 453797ac58cSKevin Wolf 4549b0beaf3SJohn Snow static int do_pread(BlockBackend *blk, char *buf, int64_t offset, 455f5a5ca79SManos Pitsidianakis int64_t bytes, int64_t *total) 456797ac58cSKevin Wolf { 457f5a5ca79SManos Pitsidianakis if (bytes > INT_MAX) { 4589b0beaf3SJohn Snow return -ERANGE; 4599b0beaf3SJohn Snow } 4609b0beaf3SJohn Snow 461f5a5ca79SManos Pitsidianakis *total = blk_pread(blk, offset, (uint8_t *)buf, bytes); 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, 469f5a5ca79SManos Pitsidianakis int64_t bytes, int flags, int64_t *total) 470797ac58cSKevin Wolf { 471f5a5ca79SManos Pitsidianakis if (bytes > INT_MAX) { 4729b0beaf3SJohn Snow return -ERANGE; 4739b0beaf3SJohn Snow } 4749b0beaf3SJohn Snow 475f5a5ca79SManos Pitsidianakis *total = blk_pwrite(blk, offset, (uint8_t *)buf, bytes, flags); 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; 485f5a5ca79SManos Pitsidianakis int64_t bytes; 4869b0beaf3SJohn Snow int64_t *total; 487770e0e0eSEric Blake int flags; 488797ac58cSKevin Wolf int ret; 489797ac58cSKevin Wolf bool done; 490797ac58cSKevin Wolf } CoWriteZeroes; 491797ac58cSKevin Wolf 492d004bd52SEric Blake static void coroutine_fn co_pwrite_zeroes_entry(void *opaque) 493797ac58cSKevin Wolf { 494797ac58cSKevin Wolf CoWriteZeroes *data = opaque; 495797ac58cSKevin Wolf 496f5a5ca79SManos Pitsidianakis data->ret = blk_co_pwrite_zeroes(data->blk, data->offset, data->bytes, 497770e0e0eSEric Blake data->flags); 498797ac58cSKevin Wolf data->done = true; 499797ac58cSKevin Wolf if (data->ret < 0) { 500797ac58cSKevin Wolf *data->total = data->ret; 501797ac58cSKevin Wolf return; 502797ac58cSKevin Wolf } 503797ac58cSKevin Wolf 504f5a5ca79SManos Pitsidianakis *data->total = data->bytes; 505797ac58cSKevin Wolf } 506797ac58cSKevin Wolf 507d004bd52SEric Blake static int do_co_pwrite_zeroes(BlockBackend *blk, int64_t offset, 508f5a5ca79SManos Pitsidianakis int64_t bytes, int flags, int64_t *total) 509797ac58cSKevin Wolf { 510797ac58cSKevin Wolf Coroutine *co; 511797ac58cSKevin Wolf CoWriteZeroes data = { 5124c7b7e9bSMax Reitz .blk = blk, 513797ac58cSKevin Wolf .offset = offset, 514f5a5ca79SManos Pitsidianakis .bytes = bytes, 515797ac58cSKevin Wolf .total = total, 516770e0e0eSEric Blake .flags = flags, 517797ac58cSKevin Wolf .done = false, 518797ac58cSKevin Wolf }; 519797ac58cSKevin Wolf 520f5a5ca79SManos Pitsidianakis if (bytes > INT_MAX) { 5219b0beaf3SJohn Snow return -ERANGE; 5229b0beaf3SJohn Snow } 5239b0beaf3SJohn Snow 5240b8b8753SPaolo Bonzini co = qemu_coroutine_create(co_pwrite_zeroes_entry, &data); 525324ec3e4SFam Zheng bdrv_coroutine_enter(blk_bs(blk), co); 526797ac58cSKevin Wolf while (!data.done) { 5274c7b7e9bSMax Reitz aio_poll(blk_get_aio_context(blk), true); 528797ac58cSKevin Wolf } 529797ac58cSKevin Wolf if (data.ret < 0) { 530797ac58cSKevin Wolf return data.ret; 531797ac58cSKevin Wolf } else { 532797ac58cSKevin Wolf return 1; 533797ac58cSKevin Wolf } 534797ac58cSKevin Wolf } 535797ac58cSKevin Wolf 5364c7b7e9bSMax Reitz static int do_write_compressed(BlockBackend *blk, char *buf, int64_t offset, 537f5a5ca79SManos Pitsidianakis int64_t bytes, int64_t *total) 538797ac58cSKevin Wolf { 539797ac58cSKevin Wolf int ret; 540797ac58cSKevin Wolf 541f5a5ca79SManos Pitsidianakis if (bytes >> 9 > BDRV_REQUEST_MAX_SECTORS) { 5429b0beaf3SJohn Snow return -ERANGE; 5439b0beaf3SJohn Snow } 5449b0beaf3SJohn Snow 545f5a5ca79SManos Pitsidianakis ret = blk_pwrite_compressed(blk, offset, buf, bytes); 546797ac58cSKevin Wolf if (ret < 0) { 547797ac58cSKevin Wolf return ret; 548797ac58cSKevin Wolf } 549f5a5ca79SManos Pitsidianakis *total = bytes; 550797ac58cSKevin Wolf return 1; 551797ac58cSKevin Wolf } 552797ac58cSKevin Wolf 5534c7b7e9bSMax Reitz static int do_load_vmstate(BlockBackend *blk, char *buf, int64_t offset, 5549b0beaf3SJohn Snow int64_t count, int64_t *total) 555797ac58cSKevin Wolf { 5569b0beaf3SJohn Snow if (count > INT_MAX) { 5579b0beaf3SJohn Snow return -ERANGE; 5589b0beaf3SJohn Snow } 5599b0beaf3SJohn Snow 5604c7b7e9bSMax Reitz *total = blk_load_vmstate(blk, (uint8_t *)buf, offset, count); 561797ac58cSKevin Wolf if (*total < 0) { 562797ac58cSKevin Wolf return *total; 563797ac58cSKevin Wolf } 564797ac58cSKevin Wolf return 1; 565797ac58cSKevin Wolf } 566797ac58cSKevin Wolf 5674c7b7e9bSMax Reitz static int do_save_vmstate(BlockBackend *blk, char *buf, int64_t offset, 5689b0beaf3SJohn Snow int64_t count, int64_t *total) 569797ac58cSKevin Wolf { 5709b0beaf3SJohn Snow if (count > INT_MAX) { 5719b0beaf3SJohn Snow return -ERANGE; 5729b0beaf3SJohn Snow } 5739b0beaf3SJohn Snow 5744c7b7e9bSMax Reitz *total = blk_save_vmstate(blk, (uint8_t *)buf, offset, count); 575797ac58cSKevin Wolf if (*total < 0) { 576797ac58cSKevin Wolf return *total; 577797ac58cSKevin Wolf } 578797ac58cSKevin Wolf return 1; 579797ac58cSKevin Wolf } 580797ac58cSKevin Wolf 581797ac58cSKevin Wolf #define NOT_DONE 0x7fffffff 582797ac58cSKevin Wolf static void aio_rw_done(void *opaque, int ret) 583797ac58cSKevin Wolf { 584797ac58cSKevin Wolf *(int *)opaque = ret; 585797ac58cSKevin Wolf } 586797ac58cSKevin Wolf 5874c7b7e9bSMax Reitz static int do_aio_readv(BlockBackend *blk, QEMUIOVector *qiov, 588797ac58cSKevin Wolf int64_t offset, int *total) 589797ac58cSKevin Wolf { 590797ac58cSKevin Wolf int async_ret = NOT_DONE; 591797ac58cSKevin Wolf 5927b3f9712SEric Blake blk_aio_preadv(blk, offset, qiov, 0, aio_rw_done, &async_ret); 593797ac58cSKevin Wolf while (async_ret == NOT_DONE) { 594797ac58cSKevin Wolf main_loop_wait(false); 595797ac58cSKevin Wolf } 596797ac58cSKevin Wolf 597797ac58cSKevin Wolf *total = qiov->size; 598797ac58cSKevin Wolf return async_ret < 0 ? async_ret : 1; 599797ac58cSKevin Wolf } 600797ac58cSKevin Wolf 6014c7b7e9bSMax Reitz static int do_aio_writev(BlockBackend *blk, QEMUIOVector *qiov, 602770e0e0eSEric Blake int64_t offset, int flags, int *total) 603797ac58cSKevin Wolf { 604797ac58cSKevin Wolf int async_ret = NOT_DONE; 605797ac58cSKevin Wolf 606770e0e0eSEric Blake blk_aio_pwritev(blk, offset, qiov, flags, 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 static void read_help(void) 616797ac58cSKevin Wolf { 617797ac58cSKevin Wolf printf( 618797ac58cSKevin Wolf "\n" 619797ac58cSKevin Wolf " reads a range of bytes from the given offset\n" 620797ac58cSKevin Wolf "\n" 621797ac58cSKevin Wolf " Example:\n" 622797ac58cSKevin Wolf " 'read -v 512 1k' - dumps 1 kilobyte read from 512 bytes into the file\n" 623797ac58cSKevin Wolf "\n" 624797ac58cSKevin Wolf " Reads a segment of the currently open file, optionally dumping it to the\n" 625797ac58cSKevin Wolf " standard output stream (with -v option) for subsequent inspection.\n" 626797ac58cSKevin Wolf " -b, -- read from the VM state rather than the virtual disk\n" 627797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 628797ac58cSKevin Wolf " -l, -- length for pattern verification (only with -P)\n" 629093ea232SEric Blake " -p, -- ignored for backwards compatibility\n" 630797ac58cSKevin Wolf " -P, -- use a pattern to verify read data\n" 631797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 632797ac58cSKevin Wolf " -s, -- start offset for pattern verification (only with -P)\n" 633797ac58cSKevin Wolf " -v, -- dump buffer to standard output\n" 634797ac58cSKevin Wolf "\n"); 635797ac58cSKevin Wolf } 636797ac58cSKevin Wolf 637b32d7a39SMax Reitz static int read_f(BlockBackend *blk, int argc, char **argv); 638797ac58cSKevin Wolf 639797ac58cSKevin Wolf static const cmdinfo_t read_cmd = { 640797ac58cSKevin Wolf .name = "read", 641797ac58cSKevin Wolf .altname = "r", 642797ac58cSKevin Wolf .cfunc = read_f, 643797ac58cSKevin Wolf .argmin = 2, 644797ac58cSKevin Wolf .argmax = -1, 645093ea232SEric Blake .args = "[-abCqv] [-P pattern [-s off] [-l len]] off len", 646797ac58cSKevin Wolf .oneline = "reads a number of bytes at a specified offset", 647797ac58cSKevin Wolf .help = read_help, 648797ac58cSKevin Wolf }; 649797ac58cSKevin Wolf 650b32d7a39SMax Reitz static int read_f(BlockBackend *blk, int argc, char **argv) 651797ac58cSKevin Wolf { 652797ac58cSKevin Wolf struct timeval t1, t2; 653093ea232SEric Blake bool Cflag = false, qflag = false, vflag = false; 654dc38852aSEric Blake bool Pflag = false, sflag = false, lflag = false, bflag = false; 655b32d7a39SMax Reitz int c, cnt, ret; 656797ac58cSKevin Wolf char *buf; 657797ac58cSKevin Wolf int64_t offset; 6589b0beaf3SJohn Snow int64_t count; 659797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 6609b0beaf3SJohn Snow int64_t total = 0; 6619b0beaf3SJohn Snow int pattern = 0; 6629b0beaf3SJohn Snow int64_t pattern_offset = 0, pattern_count = 0; 663797ac58cSKevin Wolf 664b062ad86SEric Blake while ((c = getopt(argc, argv, "bCl:pP:qs:v")) != -1) { 665797ac58cSKevin Wolf switch (c) { 666797ac58cSKevin Wolf case 'b': 667dc38852aSEric Blake bflag = true; 668797ac58cSKevin Wolf break; 669797ac58cSKevin Wolf case 'C': 670dc38852aSEric Blake Cflag = true; 671797ac58cSKevin Wolf break; 672797ac58cSKevin Wolf case 'l': 673dc38852aSEric Blake lflag = true; 674797ac58cSKevin Wolf pattern_count = cvtnum(optarg); 675797ac58cSKevin Wolf if (pattern_count < 0) { 676a9ecfa00SJohn Snow print_cvtnum_err(pattern_count, optarg); 677b32d7a39SMax Reitz return pattern_count; 678797ac58cSKevin Wolf } 679797ac58cSKevin Wolf break; 680797ac58cSKevin Wolf case 'p': 681093ea232SEric Blake /* Ignored for backwards compatibility */ 682797ac58cSKevin Wolf break; 683797ac58cSKevin Wolf case 'P': 684dc38852aSEric Blake Pflag = true; 685797ac58cSKevin Wolf pattern = parse_pattern(optarg); 686797ac58cSKevin Wolf if (pattern < 0) { 687b32d7a39SMax Reitz return -EINVAL; 688797ac58cSKevin Wolf } 689797ac58cSKevin Wolf break; 690797ac58cSKevin Wolf case 'q': 691dc38852aSEric Blake qflag = true; 692797ac58cSKevin Wolf break; 693797ac58cSKevin Wolf case 's': 694dc38852aSEric Blake sflag = true; 695797ac58cSKevin Wolf pattern_offset = cvtnum(optarg); 696797ac58cSKevin Wolf if (pattern_offset < 0) { 697a9ecfa00SJohn Snow print_cvtnum_err(pattern_offset, optarg); 698b32d7a39SMax Reitz return pattern_offset; 699797ac58cSKevin Wolf } 700797ac58cSKevin Wolf break; 701797ac58cSKevin Wolf case 'v': 702dc38852aSEric Blake vflag = true; 703797ac58cSKevin Wolf break; 704797ac58cSKevin Wolf default: 705b444d0e9SMax Reitz qemuio_command_usage(&read_cmd); 706b32d7a39SMax Reitz return -EINVAL; 707797ac58cSKevin Wolf } 708797ac58cSKevin Wolf } 709797ac58cSKevin Wolf 710797ac58cSKevin Wolf if (optind != argc - 2) { 711b444d0e9SMax Reitz qemuio_command_usage(&read_cmd); 712b32d7a39SMax Reitz return -EINVAL; 713797ac58cSKevin Wolf } 714797ac58cSKevin Wolf 715797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 716797ac58cSKevin Wolf if (offset < 0) { 717a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[optind]); 718b32d7a39SMax Reitz return offset; 719797ac58cSKevin Wolf } 720797ac58cSKevin Wolf 721797ac58cSKevin Wolf optind++; 722797ac58cSKevin Wolf count = cvtnum(argv[optind]); 723797ac58cSKevin Wolf if (count < 0) { 724a9ecfa00SJohn Snow print_cvtnum_err(count, argv[optind]); 725b32d7a39SMax Reitz return count; 7263026c468SAlberto Garcia } else if (count > BDRV_REQUEST_MAX_BYTES) { 7279b0beaf3SJohn Snow printf("length cannot exceed %" PRIu64 ", given %s\n", 7283026c468SAlberto Garcia (uint64_t)BDRV_REQUEST_MAX_BYTES, argv[optind]); 729b32d7a39SMax Reitz return -EINVAL; 730797ac58cSKevin Wolf } 731797ac58cSKevin Wolf 732797ac58cSKevin Wolf if (!Pflag && (lflag || sflag)) { 733b444d0e9SMax Reitz qemuio_command_usage(&read_cmd); 734b32d7a39SMax Reitz return -EINVAL; 735797ac58cSKevin Wolf } 736797ac58cSKevin Wolf 737797ac58cSKevin Wolf if (!lflag) { 738797ac58cSKevin Wolf pattern_count = count - pattern_offset; 739797ac58cSKevin Wolf } 740797ac58cSKevin Wolf 741797ac58cSKevin Wolf if ((pattern_count < 0) || (pattern_count + pattern_offset > count)) { 742797ac58cSKevin Wolf printf("pattern verification range exceeds end of read data\n"); 743b32d7a39SMax Reitz return -EINVAL; 744797ac58cSKevin Wolf } 745797ac58cSKevin Wolf 746093ea232SEric Blake if (bflag) { 7471bce6b4cSEric Blake if (!QEMU_IS_ALIGNED(offset, BDRV_SECTOR_SIZE)) { 7481bce6b4cSEric Blake printf("%" PRId64 " is not a sector-aligned value for 'offset'\n", 749797ac58cSKevin Wolf offset); 750b32d7a39SMax Reitz return -EINVAL; 751797ac58cSKevin Wolf } 7521bce6b4cSEric Blake if (!QEMU_IS_ALIGNED(count, BDRV_SECTOR_SIZE)) { 7531bce6b4cSEric Blake printf("%"PRId64" is not a sector-aligned value for 'count'\n", 754797ac58cSKevin Wolf count); 755b32d7a39SMax Reitz return -EINVAL; 756797ac58cSKevin Wolf } 757797ac58cSKevin Wolf } 758797ac58cSKevin Wolf 7594c7b7e9bSMax Reitz buf = qemu_io_alloc(blk, count, 0xab); 760797ac58cSKevin Wolf 761797ac58cSKevin Wolf gettimeofday(&t1, NULL); 7627b3f9712SEric Blake if (bflag) { 763b32d7a39SMax Reitz ret = do_load_vmstate(blk, buf, offset, count, &total); 764797ac58cSKevin Wolf } else { 765b32d7a39SMax Reitz ret = do_pread(blk, buf, offset, count, &total); 766797ac58cSKevin Wolf } 767797ac58cSKevin Wolf gettimeofday(&t2, NULL); 768797ac58cSKevin Wolf 769b32d7a39SMax Reitz if (ret < 0) { 770b32d7a39SMax Reitz printf("read failed: %s\n", strerror(-ret)); 771797ac58cSKevin Wolf goto out; 772797ac58cSKevin Wolf } 773b32d7a39SMax Reitz cnt = ret; 774b32d7a39SMax Reitz 775b32d7a39SMax Reitz ret = 0; 776797ac58cSKevin Wolf 777797ac58cSKevin Wolf if (Pflag) { 778797ac58cSKevin Wolf void *cmp_buf = g_malloc(pattern_count); 779797ac58cSKevin Wolf memset(cmp_buf, pattern, pattern_count); 780797ac58cSKevin Wolf if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) { 781797ac58cSKevin Wolf printf("Pattern verification failed at offset %" 7829b0beaf3SJohn Snow PRId64 ", %"PRId64" bytes\n", 783797ac58cSKevin Wolf offset + pattern_offset, pattern_count); 784b32d7a39SMax Reitz ret = -EINVAL; 785797ac58cSKevin Wolf } 786797ac58cSKevin Wolf g_free(cmp_buf); 787797ac58cSKevin Wolf } 788797ac58cSKevin Wolf 789797ac58cSKevin Wolf if (qflag) { 790797ac58cSKevin Wolf goto out; 791797ac58cSKevin Wolf } 792797ac58cSKevin Wolf 793797ac58cSKevin Wolf if (vflag) { 794797ac58cSKevin Wolf dump_buffer(buf, offset, count); 795797ac58cSKevin Wolf } 796797ac58cSKevin Wolf 797797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 798797ac58cSKevin Wolf t2 = tsub(t2, t1); 799797ac58cSKevin Wolf print_report("read", &t2, offset, count, total, cnt, Cflag); 800797ac58cSKevin Wolf 801797ac58cSKevin Wolf out: 802797ac58cSKevin Wolf qemu_io_free(buf); 803b32d7a39SMax Reitz return ret; 804797ac58cSKevin Wolf } 805797ac58cSKevin Wolf 806797ac58cSKevin Wolf static void readv_help(void) 807797ac58cSKevin Wolf { 808797ac58cSKevin Wolf printf( 809797ac58cSKevin Wolf "\n" 810797ac58cSKevin Wolf " reads a range of bytes from the given offset into multiple buffers\n" 811797ac58cSKevin Wolf "\n" 812797ac58cSKevin Wolf " Example:\n" 813797ac58cSKevin Wolf " 'readv -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" 814797ac58cSKevin Wolf "\n" 815797ac58cSKevin Wolf " Reads a segment of the currently open file, optionally dumping it to the\n" 816797ac58cSKevin Wolf " standard output stream (with -v option) for subsequent inspection.\n" 817797ac58cSKevin Wolf " Uses multiple iovec buffers if more than one byte range is specified.\n" 818797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 819797ac58cSKevin Wolf " -P, -- use a pattern to verify read data\n" 820797ac58cSKevin Wolf " -v, -- dump buffer to standard output\n" 821797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 822797ac58cSKevin Wolf "\n"); 823797ac58cSKevin Wolf } 824797ac58cSKevin Wolf 825b32d7a39SMax Reitz static int readv_f(BlockBackend *blk, int argc, char **argv); 826797ac58cSKevin Wolf 827797ac58cSKevin Wolf static const cmdinfo_t readv_cmd = { 828797ac58cSKevin Wolf .name = "readv", 829797ac58cSKevin Wolf .cfunc = readv_f, 830797ac58cSKevin Wolf .argmin = 2, 831797ac58cSKevin Wolf .argmax = -1, 832797ac58cSKevin Wolf .args = "[-Cqv] [-P pattern] off len [len..]", 833797ac58cSKevin Wolf .oneline = "reads a number of bytes at a specified offset", 834797ac58cSKevin Wolf .help = readv_help, 835797ac58cSKevin Wolf }; 836797ac58cSKevin Wolf 837b32d7a39SMax Reitz static int readv_f(BlockBackend *blk, int argc, char **argv) 838797ac58cSKevin Wolf { 839797ac58cSKevin Wolf struct timeval t1, t2; 840dc38852aSEric Blake bool Cflag = false, qflag = false, vflag = false; 841b32d7a39SMax Reitz int c, cnt, ret; 842797ac58cSKevin Wolf char *buf; 843797ac58cSKevin Wolf int64_t offset; 844797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 845797ac58cSKevin Wolf int total = 0; 846797ac58cSKevin Wolf int nr_iov; 847797ac58cSKevin Wolf QEMUIOVector qiov; 848797ac58cSKevin Wolf int pattern = 0; 849dc38852aSEric Blake bool Pflag = false; 850797ac58cSKevin Wolf 851b062ad86SEric Blake while ((c = getopt(argc, argv, "CP:qv")) != -1) { 852797ac58cSKevin Wolf switch (c) { 853797ac58cSKevin Wolf case 'C': 854dc38852aSEric Blake Cflag = true; 855797ac58cSKevin Wolf break; 856797ac58cSKevin Wolf case 'P': 857dc38852aSEric Blake Pflag = true; 858797ac58cSKevin Wolf pattern = parse_pattern(optarg); 859797ac58cSKevin Wolf if (pattern < 0) { 860b32d7a39SMax Reitz return -EINVAL; 861797ac58cSKevin Wolf } 862797ac58cSKevin Wolf break; 863797ac58cSKevin Wolf case 'q': 864dc38852aSEric Blake qflag = true; 865797ac58cSKevin Wolf break; 866797ac58cSKevin Wolf case 'v': 867dc38852aSEric Blake vflag = true; 868797ac58cSKevin Wolf break; 869797ac58cSKevin Wolf default: 870b444d0e9SMax Reitz qemuio_command_usage(&readv_cmd); 871b32d7a39SMax Reitz return -EINVAL; 872797ac58cSKevin Wolf } 873797ac58cSKevin Wolf } 874797ac58cSKevin Wolf 875797ac58cSKevin Wolf if (optind > argc - 2) { 876b444d0e9SMax Reitz qemuio_command_usage(&readv_cmd); 877b32d7a39SMax Reitz return -EINVAL; 878797ac58cSKevin Wolf } 879797ac58cSKevin Wolf 880797ac58cSKevin Wolf 881797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 882797ac58cSKevin Wolf if (offset < 0) { 883a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[optind]); 884b32d7a39SMax Reitz return offset; 885797ac58cSKevin Wolf } 886797ac58cSKevin Wolf optind++; 887797ac58cSKevin Wolf 888797ac58cSKevin Wolf nr_iov = argc - optind; 8894c7b7e9bSMax Reitz buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, 0xab); 890797ac58cSKevin Wolf if (buf == NULL) { 891b32d7a39SMax Reitz return -EINVAL; 892797ac58cSKevin Wolf } 893797ac58cSKevin Wolf 894797ac58cSKevin Wolf gettimeofday(&t1, NULL); 895b32d7a39SMax Reitz ret = do_aio_readv(blk, &qiov, offset, &total); 896797ac58cSKevin Wolf gettimeofday(&t2, NULL); 897797ac58cSKevin Wolf 898b32d7a39SMax Reitz if (ret < 0) { 899b32d7a39SMax Reitz printf("readv failed: %s\n", strerror(-ret)); 900797ac58cSKevin Wolf goto out; 901797ac58cSKevin Wolf } 902b32d7a39SMax Reitz cnt = ret; 903b32d7a39SMax Reitz 904b32d7a39SMax Reitz ret = 0; 905797ac58cSKevin Wolf 906797ac58cSKevin Wolf if (Pflag) { 907797ac58cSKevin Wolf void *cmp_buf = g_malloc(qiov.size); 908797ac58cSKevin Wolf memset(cmp_buf, pattern, qiov.size); 909797ac58cSKevin Wolf if (memcmp(buf, cmp_buf, qiov.size)) { 910797ac58cSKevin Wolf printf("Pattern verification failed at offset %" 911cf67b692SStefan Weil PRId64 ", %zu bytes\n", offset, qiov.size); 912b32d7a39SMax Reitz ret = -EINVAL; 913797ac58cSKevin Wolf } 914797ac58cSKevin Wolf g_free(cmp_buf); 915797ac58cSKevin Wolf } 916797ac58cSKevin Wolf 917797ac58cSKevin Wolf if (qflag) { 918797ac58cSKevin Wolf goto out; 919797ac58cSKevin Wolf } 920797ac58cSKevin Wolf 921797ac58cSKevin Wolf if (vflag) { 922797ac58cSKevin Wolf dump_buffer(buf, offset, qiov.size); 923797ac58cSKevin Wolf } 924797ac58cSKevin Wolf 925797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 926797ac58cSKevin Wolf t2 = tsub(t2, t1); 927797ac58cSKevin Wolf print_report("read", &t2, offset, qiov.size, total, cnt, Cflag); 928797ac58cSKevin Wolf 929797ac58cSKevin Wolf out: 930797ac58cSKevin Wolf qemu_iovec_destroy(&qiov); 931797ac58cSKevin Wolf qemu_io_free(buf); 932b32d7a39SMax Reitz return ret; 933797ac58cSKevin Wolf } 934797ac58cSKevin Wolf 935797ac58cSKevin Wolf static void write_help(void) 936797ac58cSKevin Wolf { 937797ac58cSKevin Wolf printf( 938797ac58cSKevin Wolf "\n" 939797ac58cSKevin Wolf " writes a range of bytes from the given offset\n" 940797ac58cSKevin Wolf "\n" 941797ac58cSKevin Wolf " Example:\n" 942797ac58cSKevin Wolf " 'write 512 1k' - writes 1 kilobyte at 512 bytes into the open file\n" 943797ac58cSKevin Wolf "\n" 944797ac58cSKevin Wolf " Writes into a segment of the currently open file, using a buffer\n" 945797ac58cSKevin Wolf " filled with a set pattern (0xcdcdcdcd).\n" 946797ac58cSKevin Wolf " -b, -- write to the VM state rather than the virtual disk\n" 9474c7b7e9bSMax Reitz " -c, -- write compressed data with blk_write_compressed\n" 948770e0e0eSEric Blake " -f, -- use Force Unit Access semantics\n" 949093ea232SEric Blake " -p, -- ignored for backwards compatibility\n" 950797ac58cSKevin Wolf " -P, -- use different pattern to fill file\n" 951797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 952797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 953c2e001ccSEric Blake " -u, -- with -z, allow unmapping\n" 954d004bd52SEric Blake " -z, -- write zeroes using blk_co_pwrite_zeroes\n" 955797ac58cSKevin Wolf "\n"); 956797ac58cSKevin Wolf } 957797ac58cSKevin Wolf 958b32d7a39SMax Reitz static int write_f(BlockBackend *blk, int argc, char **argv); 959797ac58cSKevin Wolf 960797ac58cSKevin Wolf static const cmdinfo_t write_cmd = { 961797ac58cSKevin Wolf .name = "write", 962797ac58cSKevin Wolf .altname = "w", 963797ac58cSKevin Wolf .cfunc = write_f, 964887354bdSKevin Wolf .perm = BLK_PERM_WRITE, 965797ac58cSKevin Wolf .argmin = 2, 966797ac58cSKevin Wolf .argmax = -1, 967c2e001ccSEric Blake .args = "[-bcCfquz] [-P pattern] off len", 968797ac58cSKevin Wolf .oneline = "writes a number of bytes at a specified offset", 969797ac58cSKevin Wolf .help = write_help, 970797ac58cSKevin Wolf }; 971797ac58cSKevin Wolf 972b32d7a39SMax Reitz static int write_f(BlockBackend *blk, int argc, char **argv) 973797ac58cSKevin Wolf { 974797ac58cSKevin Wolf struct timeval t1, t2; 975093ea232SEric Blake bool Cflag = false, qflag = false, bflag = false; 976dc38852aSEric Blake bool Pflag = false, zflag = false, cflag = false; 977770e0e0eSEric Blake int flags = 0; 978b32d7a39SMax Reitz int c, cnt, ret; 979797ac58cSKevin Wolf char *buf = NULL; 980797ac58cSKevin Wolf int64_t offset; 9819b0beaf3SJohn Snow int64_t count; 982797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 9839b0beaf3SJohn Snow int64_t total = 0; 984797ac58cSKevin Wolf int pattern = 0xcd; 985797ac58cSKevin Wolf 986c2e001ccSEric Blake while ((c = getopt(argc, argv, "bcCfpP:quz")) != -1) { 987797ac58cSKevin Wolf switch (c) { 988797ac58cSKevin Wolf case 'b': 989dc38852aSEric Blake bflag = true; 990797ac58cSKevin Wolf break; 991797ac58cSKevin Wolf case 'c': 992dc38852aSEric Blake cflag = true; 993797ac58cSKevin Wolf break; 994797ac58cSKevin Wolf case 'C': 995dc38852aSEric Blake Cflag = true; 996797ac58cSKevin Wolf break; 997770e0e0eSEric Blake case 'f': 998770e0e0eSEric Blake flags |= BDRV_REQ_FUA; 999770e0e0eSEric Blake break; 1000797ac58cSKevin Wolf case 'p': 1001093ea232SEric Blake /* Ignored for backwards compatibility */ 1002797ac58cSKevin Wolf break; 1003797ac58cSKevin Wolf case 'P': 1004dc38852aSEric Blake Pflag = true; 1005797ac58cSKevin Wolf pattern = parse_pattern(optarg); 1006797ac58cSKevin Wolf if (pattern < 0) { 1007b32d7a39SMax Reitz return -EINVAL; 1008797ac58cSKevin Wolf } 1009797ac58cSKevin Wolf break; 1010797ac58cSKevin Wolf case 'q': 1011dc38852aSEric Blake qflag = true; 1012797ac58cSKevin Wolf break; 1013c2e001ccSEric Blake case 'u': 1014c2e001ccSEric Blake flags |= BDRV_REQ_MAY_UNMAP; 1015c2e001ccSEric Blake break; 1016797ac58cSKevin Wolf case 'z': 1017dc38852aSEric Blake zflag = true; 1018797ac58cSKevin Wolf break; 1019797ac58cSKevin Wolf default: 1020b444d0e9SMax Reitz qemuio_command_usage(&write_cmd); 1021b32d7a39SMax Reitz return -EINVAL; 1022797ac58cSKevin Wolf } 1023797ac58cSKevin Wolf } 1024797ac58cSKevin Wolf 1025797ac58cSKevin Wolf if (optind != argc - 2) { 1026b444d0e9SMax Reitz qemuio_command_usage(&write_cmd); 1027b32d7a39SMax Reitz return -EINVAL; 1028797ac58cSKevin Wolf } 1029797ac58cSKevin Wolf 1030093ea232SEric Blake if (bflag && zflag) { 1031093ea232SEric Blake printf("-b and -z cannot be specified at the same time\n"); 1032b32d7a39SMax Reitz return -EINVAL; 1033797ac58cSKevin Wolf } 1034797ac58cSKevin Wolf 1035770e0e0eSEric Blake if ((flags & BDRV_REQ_FUA) && (bflag || cflag)) { 1036770e0e0eSEric Blake printf("-f and -b or -c cannot be specified at the same time\n"); 1037b32d7a39SMax Reitz return -EINVAL; 1038770e0e0eSEric Blake } 1039770e0e0eSEric Blake 1040c2e001ccSEric Blake if ((flags & BDRV_REQ_MAY_UNMAP) && !zflag) { 1041c2e001ccSEric Blake printf("-u requires -z to be specified\n"); 1042b32d7a39SMax Reitz return -EINVAL; 1043c2e001ccSEric Blake } 1044c2e001ccSEric Blake 1045797ac58cSKevin Wolf if (zflag && Pflag) { 1046797ac58cSKevin Wolf printf("-z and -P cannot be specified at the same time\n"); 1047b32d7a39SMax Reitz return -EINVAL; 1048797ac58cSKevin Wolf } 1049797ac58cSKevin Wolf 1050797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 1051797ac58cSKevin Wolf if (offset < 0) { 1052a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[optind]); 1053b32d7a39SMax Reitz return offset; 1054797ac58cSKevin Wolf } 1055797ac58cSKevin Wolf 1056797ac58cSKevin Wolf optind++; 1057797ac58cSKevin Wolf count = cvtnum(argv[optind]); 1058797ac58cSKevin Wolf if (count < 0) { 1059a9ecfa00SJohn Snow print_cvtnum_err(count, argv[optind]); 1060b32d7a39SMax Reitz return count; 10613026c468SAlberto Garcia } else if (count > BDRV_REQUEST_MAX_BYTES) { 10629b0beaf3SJohn Snow printf("length cannot exceed %" PRIu64 ", given %s\n", 10633026c468SAlberto Garcia (uint64_t)BDRV_REQUEST_MAX_BYTES, argv[optind]); 1064b32d7a39SMax Reitz return -EINVAL; 1065797ac58cSKevin Wolf } 1066797ac58cSKevin Wolf 1067093ea232SEric Blake if (bflag || cflag) { 10681bce6b4cSEric Blake if (!QEMU_IS_ALIGNED(offset, BDRV_SECTOR_SIZE)) { 10691bce6b4cSEric Blake printf("%" PRId64 " is not a sector-aligned value for 'offset'\n", 1070797ac58cSKevin Wolf offset); 1071b32d7a39SMax Reitz return -EINVAL; 1072797ac58cSKevin Wolf } 1073797ac58cSKevin Wolf 10741bce6b4cSEric Blake if (!QEMU_IS_ALIGNED(count, BDRV_SECTOR_SIZE)) { 10751bce6b4cSEric Blake printf("%"PRId64" is not a sector-aligned value for 'count'\n", 1076797ac58cSKevin Wolf count); 1077b32d7a39SMax Reitz return -EINVAL; 1078797ac58cSKevin Wolf } 1079797ac58cSKevin Wolf } 1080797ac58cSKevin Wolf 1081797ac58cSKevin Wolf if (!zflag) { 10824c7b7e9bSMax Reitz buf = qemu_io_alloc(blk, count, pattern); 1083797ac58cSKevin Wolf } 1084797ac58cSKevin Wolf 1085797ac58cSKevin Wolf gettimeofday(&t1, NULL); 10867b3f9712SEric Blake if (bflag) { 1087b32d7a39SMax Reitz ret = do_save_vmstate(blk, buf, offset, count, &total); 1088797ac58cSKevin Wolf } else if (zflag) { 1089b32d7a39SMax Reitz ret = do_co_pwrite_zeroes(blk, offset, count, flags, &total); 1090797ac58cSKevin Wolf } else if (cflag) { 1091b32d7a39SMax Reitz ret = do_write_compressed(blk, buf, offset, count, &total); 1092797ac58cSKevin Wolf } else { 1093b32d7a39SMax Reitz ret = do_pwrite(blk, buf, offset, count, flags, &total); 1094797ac58cSKevin Wolf } 1095797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1096797ac58cSKevin Wolf 1097b32d7a39SMax Reitz if (ret < 0) { 1098b32d7a39SMax Reitz printf("write failed: %s\n", strerror(-ret)); 1099797ac58cSKevin Wolf goto out; 1100797ac58cSKevin Wolf } 1101b32d7a39SMax Reitz cnt = ret; 1102b32d7a39SMax Reitz 1103b32d7a39SMax Reitz ret = 0; 1104797ac58cSKevin Wolf 1105797ac58cSKevin Wolf if (qflag) { 1106797ac58cSKevin Wolf goto out; 1107797ac58cSKevin Wolf } 1108797ac58cSKevin Wolf 1109797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1110797ac58cSKevin Wolf t2 = tsub(t2, t1); 1111797ac58cSKevin Wolf print_report("wrote", &t2, offset, count, total, cnt, Cflag); 1112797ac58cSKevin Wolf 1113797ac58cSKevin Wolf out: 1114797ac58cSKevin Wolf if (!zflag) { 1115797ac58cSKevin Wolf qemu_io_free(buf); 1116797ac58cSKevin Wolf } 1117b32d7a39SMax Reitz return ret; 1118797ac58cSKevin Wolf } 1119797ac58cSKevin Wolf 1120797ac58cSKevin Wolf static void 1121797ac58cSKevin Wolf writev_help(void) 1122797ac58cSKevin Wolf { 1123797ac58cSKevin Wolf printf( 1124797ac58cSKevin Wolf "\n" 1125797ac58cSKevin Wolf " writes a range of bytes from the given offset source from multiple buffers\n" 1126797ac58cSKevin Wolf "\n" 1127797ac58cSKevin Wolf " Example:\n" 11286e6507c0SMaria Kustova " 'writev 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" 1129797ac58cSKevin Wolf "\n" 1130797ac58cSKevin Wolf " Writes into a segment of the currently open file, using a buffer\n" 1131797ac58cSKevin Wolf " filled with a set pattern (0xcdcdcdcd).\n" 1132797ac58cSKevin Wolf " -P, -- use different pattern to fill file\n" 1133797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1134770e0e0eSEric Blake " -f, -- use Force Unit Access semantics\n" 1135797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1136797ac58cSKevin Wolf "\n"); 1137797ac58cSKevin Wolf } 1138797ac58cSKevin Wolf 1139b32d7a39SMax Reitz static int writev_f(BlockBackend *blk, int argc, char **argv); 1140797ac58cSKevin Wolf 1141797ac58cSKevin Wolf static const cmdinfo_t writev_cmd = { 1142797ac58cSKevin Wolf .name = "writev", 1143797ac58cSKevin Wolf .cfunc = writev_f, 1144887354bdSKevin Wolf .perm = BLK_PERM_WRITE, 1145797ac58cSKevin Wolf .argmin = 2, 1146797ac58cSKevin Wolf .argmax = -1, 1147770e0e0eSEric Blake .args = "[-Cfq] [-P pattern] off len [len..]", 1148797ac58cSKevin Wolf .oneline = "writes a number of bytes at a specified offset", 1149797ac58cSKevin Wolf .help = writev_help, 1150797ac58cSKevin Wolf }; 1151797ac58cSKevin Wolf 1152b32d7a39SMax Reitz static int writev_f(BlockBackend *blk, int argc, char **argv) 1153797ac58cSKevin Wolf { 1154797ac58cSKevin Wolf struct timeval t1, t2; 1155dc38852aSEric Blake bool Cflag = false, qflag = false; 1156770e0e0eSEric Blake int flags = 0; 1157b32d7a39SMax Reitz int c, cnt, ret; 1158797ac58cSKevin Wolf char *buf; 1159797ac58cSKevin Wolf int64_t offset; 1160797ac58cSKevin Wolf /* Some compilers get confused and warn if this is not initialized. */ 1161797ac58cSKevin Wolf int total = 0; 1162797ac58cSKevin Wolf int nr_iov; 1163797ac58cSKevin Wolf int pattern = 0xcd; 1164797ac58cSKevin Wolf QEMUIOVector qiov; 1165797ac58cSKevin Wolf 11664ca1d340SEric Blake while ((c = getopt(argc, argv, "CfqP:")) != -1) { 1167797ac58cSKevin Wolf switch (c) { 1168797ac58cSKevin Wolf case 'C': 1169dc38852aSEric Blake Cflag = true; 1170797ac58cSKevin Wolf break; 1171770e0e0eSEric Blake case 'f': 1172770e0e0eSEric Blake flags |= BDRV_REQ_FUA; 1173770e0e0eSEric Blake break; 1174797ac58cSKevin Wolf case 'q': 1175dc38852aSEric Blake qflag = true; 1176797ac58cSKevin Wolf break; 1177797ac58cSKevin Wolf case 'P': 1178797ac58cSKevin Wolf pattern = parse_pattern(optarg); 1179797ac58cSKevin Wolf if (pattern < 0) { 1180b32d7a39SMax Reitz return -EINVAL; 1181797ac58cSKevin Wolf } 1182797ac58cSKevin Wolf break; 1183797ac58cSKevin Wolf default: 1184b444d0e9SMax Reitz qemuio_command_usage(&writev_cmd); 1185b32d7a39SMax Reitz return -EINVAL; 1186797ac58cSKevin Wolf } 1187797ac58cSKevin Wolf } 1188797ac58cSKevin Wolf 1189797ac58cSKevin Wolf if (optind > argc - 2) { 1190b444d0e9SMax Reitz qemuio_command_usage(&writev_cmd); 1191b32d7a39SMax Reitz return -EINVAL; 1192797ac58cSKevin Wolf } 1193797ac58cSKevin Wolf 1194797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 1195797ac58cSKevin Wolf if (offset < 0) { 1196a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[optind]); 1197b32d7a39SMax Reitz return offset; 1198797ac58cSKevin Wolf } 1199797ac58cSKevin Wolf optind++; 1200797ac58cSKevin Wolf 1201797ac58cSKevin Wolf nr_iov = argc - optind; 12024c7b7e9bSMax Reitz buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, pattern); 1203797ac58cSKevin Wolf if (buf == NULL) { 1204b32d7a39SMax Reitz return -EINVAL; 1205797ac58cSKevin Wolf } 1206797ac58cSKevin Wolf 1207797ac58cSKevin Wolf gettimeofday(&t1, NULL); 1208b32d7a39SMax Reitz ret = do_aio_writev(blk, &qiov, offset, flags, &total); 1209797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1210797ac58cSKevin Wolf 1211b32d7a39SMax Reitz if (ret < 0) { 1212b32d7a39SMax Reitz printf("writev failed: %s\n", strerror(-ret)); 1213797ac58cSKevin Wolf goto out; 1214797ac58cSKevin Wolf } 1215b32d7a39SMax Reitz cnt = ret; 1216b32d7a39SMax Reitz 1217b32d7a39SMax Reitz ret = 0; 1218797ac58cSKevin Wolf 1219797ac58cSKevin Wolf if (qflag) { 1220797ac58cSKevin Wolf goto out; 1221797ac58cSKevin Wolf } 1222797ac58cSKevin Wolf 1223797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1224797ac58cSKevin Wolf t2 = tsub(t2, t1); 1225797ac58cSKevin Wolf print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag); 1226797ac58cSKevin Wolf out: 1227797ac58cSKevin Wolf qemu_iovec_destroy(&qiov); 1228797ac58cSKevin Wolf qemu_io_free(buf); 1229b32d7a39SMax Reitz return ret; 1230797ac58cSKevin Wolf } 1231797ac58cSKevin Wolf 1232797ac58cSKevin Wolf struct aio_ctx { 12334c7b7e9bSMax Reitz BlockBackend *blk; 1234797ac58cSKevin Wolf QEMUIOVector qiov; 1235797ac58cSKevin Wolf int64_t offset; 1236797ac58cSKevin Wolf char *buf; 1237dc38852aSEric Blake bool qflag; 1238dc38852aSEric Blake bool vflag; 1239dc38852aSEric Blake bool Cflag; 1240dc38852aSEric Blake bool Pflag; 1241dc38852aSEric Blake bool zflag; 1242a91f9584SFam Zheng BlockAcctCookie acct; 1243797ac58cSKevin Wolf int pattern; 1244797ac58cSKevin Wolf struct timeval t1; 1245797ac58cSKevin Wolf }; 1246797ac58cSKevin Wolf 1247797ac58cSKevin Wolf static void aio_write_done(void *opaque, int ret) 1248797ac58cSKevin Wolf { 1249797ac58cSKevin Wolf struct aio_ctx *ctx = opaque; 1250797ac58cSKevin Wolf struct timeval t2; 1251797ac58cSKevin Wolf 1252797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1253797ac58cSKevin Wolf 1254797ac58cSKevin Wolf 1255797ac58cSKevin Wolf if (ret < 0) { 1256797ac58cSKevin Wolf printf("aio_write failed: %s\n", strerror(-ret)); 1257556c2b60SAlberto Garcia block_acct_failed(blk_get_stats(ctx->blk), &ctx->acct); 1258797ac58cSKevin Wolf goto out; 1259797ac58cSKevin Wolf } 1260797ac58cSKevin Wolf 12614c7b7e9bSMax Reitz block_acct_done(blk_get_stats(ctx->blk), &ctx->acct); 1262a91f9584SFam Zheng 1263797ac58cSKevin Wolf if (ctx->qflag) { 1264797ac58cSKevin Wolf goto out; 1265797ac58cSKevin Wolf } 1266797ac58cSKevin Wolf 1267797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1268797ac58cSKevin Wolf t2 = tsub(t2, ctx->t1); 1269797ac58cSKevin Wolf print_report("wrote", &t2, ctx->offset, ctx->qiov.size, 1270797ac58cSKevin Wolf ctx->qiov.size, 1, ctx->Cflag); 1271797ac58cSKevin Wolf out: 12725ceb7765SKevin Wolf if (!ctx->zflag) { 1273797ac58cSKevin Wolf qemu_io_free(ctx->buf); 1274797ac58cSKevin Wolf qemu_iovec_destroy(&ctx->qiov); 12755ceb7765SKevin Wolf } 1276797ac58cSKevin Wolf g_free(ctx); 1277797ac58cSKevin Wolf } 1278797ac58cSKevin Wolf 1279797ac58cSKevin Wolf static void aio_read_done(void *opaque, int ret) 1280797ac58cSKevin Wolf { 1281797ac58cSKevin Wolf struct aio_ctx *ctx = opaque; 1282797ac58cSKevin Wolf struct timeval t2; 1283797ac58cSKevin Wolf 1284797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1285797ac58cSKevin Wolf 1286797ac58cSKevin Wolf if (ret < 0) { 1287797ac58cSKevin Wolf printf("readv failed: %s\n", strerror(-ret)); 1288556c2b60SAlberto Garcia block_acct_failed(blk_get_stats(ctx->blk), &ctx->acct); 1289797ac58cSKevin Wolf goto out; 1290797ac58cSKevin Wolf } 1291797ac58cSKevin Wolf 1292797ac58cSKevin Wolf if (ctx->Pflag) { 1293797ac58cSKevin Wolf void *cmp_buf = g_malloc(ctx->qiov.size); 1294797ac58cSKevin Wolf 1295797ac58cSKevin Wolf memset(cmp_buf, ctx->pattern, ctx->qiov.size); 1296797ac58cSKevin Wolf if (memcmp(ctx->buf, cmp_buf, ctx->qiov.size)) { 1297797ac58cSKevin Wolf printf("Pattern verification failed at offset %" 1298cf67b692SStefan Weil PRId64 ", %zu bytes\n", ctx->offset, ctx->qiov.size); 1299797ac58cSKevin Wolf } 1300797ac58cSKevin Wolf g_free(cmp_buf); 1301797ac58cSKevin Wolf } 1302797ac58cSKevin Wolf 13034c7b7e9bSMax Reitz block_acct_done(blk_get_stats(ctx->blk), &ctx->acct); 1304a91f9584SFam Zheng 1305797ac58cSKevin Wolf if (ctx->qflag) { 1306797ac58cSKevin Wolf goto out; 1307797ac58cSKevin Wolf } 1308797ac58cSKevin Wolf 1309797ac58cSKevin Wolf if (ctx->vflag) { 1310797ac58cSKevin Wolf dump_buffer(ctx->buf, ctx->offset, ctx->qiov.size); 1311797ac58cSKevin Wolf } 1312797ac58cSKevin Wolf 1313797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1314797ac58cSKevin Wolf t2 = tsub(t2, ctx->t1); 1315797ac58cSKevin Wolf print_report("read", &t2, ctx->offset, ctx->qiov.size, 1316797ac58cSKevin Wolf ctx->qiov.size, 1, ctx->Cflag); 1317797ac58cSKevin Wolf out: 1318797ac58cSKevin Wolf qemu_io_free(ctx->buf); 1319797ac58cSKevin Wolf qemu_iovec_destroy(&ctx->qiov); 1320797ac58cSKevin Wolf g_free(ctx); 1321797ac58cSKevin Wolf } 1322797ac58cSKevin Wolf 1323797ac58cSKevin Wolf static void aio_read_help(void) 1324797ac58cSKevin Wolf { 1325797ac58cSKevin Wolf printf( 1326797ac58cSKevin Wolf "\n" 1327797ac58cSKevin Wolf " asynchronously reads a range of bytes from the given offset\n" 1328797ac58cSKevin Wolf "\n" 1329797ac58cSKevin Wolf " Example:\n" 1330797ac58cSKevin Wolf " 'aio_read -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" 1331797ac58cSKevin Wolf "\n" 1332797ac58cSKevin Wolf " Reads a segment of the currently open file, optionally dumping it to the\n" 1333797ac58cSKevin Wolf " standard output stream (with -v option) for subsequent inspection.\n" 1334797ac58cSKevin Wolf " The read is performed asynchronously and the aio_flush command must be\n" 1335797ac58cSKevin Wolf " used to ensure all outstanding aio requests have been completed.\n" 1336b32d7a39SMax Reitz " Note that due to its asynchronous nature, this command will be\n" 1337b32d7a39SMax Reitz " considered successful once the request is submitted, independently\n" 1338b32d7a39SMax Reitz " of potential I/O errors or pattern mismatches.\n" 1339797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1340797ac58cSKevin Wolf " -P, -- use a pattern to verify read data\n" 134137546ff2SEric Blake " -i, -- treat request as invalid, for exercising stats\n" 1342797ac58cSKevin Wolf " -v, -- dump buffer to standard output\n" 1343797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1344797ac58cSKevin Wolf "\n"); 1345797ac58cSKevin Wolf } 1346797ac58cSKevin Wolf 1347b32d7a39SMax Reitz static int aio_read_f(BlockBackend *blk, int argc, char **argv); 1348797ac58cSKevin Wolf 1349797ac58cSKevin Wolf static const cmdinfo_t aio_read_cmd = { 1350797ac58cSKevin Wolf .name = "aio_read", 1351797ac58cSKevin Wolf .cfunc = aio_read_f, 1352797ac58cSKevin Wolf .argmin = 2, 1353797ac58cSKevin Wolf .argmax = -1, 135437546ff2SEric Blake .args = "[-Ciqv] [-P pattern] off len [len..]", 1355797ac58cSKevin Wolf .oneline = "asynchronously reads a number of bytes", 1356797ac58cSKevin Wolf .help = aio_read_help, 1357797ac58cSKevin Wolf }; 1358797ac58cSKevin Wolf 1359b32d7a39SMax Reitz static int aio_read_f(BlockBackend *blk, int argc, char **argv) 1360797ac58cSKevin Wolf { 1361797ac58cSKevin Wolf int nr_iov, c; 1362797ac58cSKevin Wolf struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); 1363797ac58cSKevin Wolf 13644c7b7e9bSMax Reitz ctx->blk = blk; 136537546ff2SEric Blake while ((c = getopt(argc, argv, "CP:iqv")) != -1) { 1366797ac58cSKevin Wolf switch (c) { 1367797ac58cSKevin Wolf case 'C': 1368dc38852aSEric Blake ctx->Cflag = true; 1369797ac58cSKevin Wolf break; 1370797ac58cSKevin Wolf case 'P': 1371dc38852aSEric Blake ctx->Pflag = true; 1372797ac58cSKevin Wolf ctx->pattern = parse_pattern(optarg); 1373797ac58cSKevin Wolf if (ctx->pattern < 0) { 1374797ac58cSKevin Wolf g_free(ctx); 1375b32d7a39SMax Reitz return -EINVAL; 1376797ac58cSKevin Wolf } 1377797ac58cSKevin Wolf break; 137837546ff2SEric Blake case 'i': 137937546ff2SEric Blake printf("injecting invalid read request\n"); 138037546ff2SEric Blake block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_READ); 138137546ff2SEric Blake g_free(ctx); 1382b32d7a39SMax Reitz return 0; 1383797ac58cSKevin Wolf case 'q': 1384dc38852aSEric Blake ctx->qflag = true; 1385797ac58cSKevin Wolf break; 1386797ac58cSKevin Wolf case 'v': 1387dc38852aSEric Blake ctx->vflag = true; 1388797ac58cSKevin Wolf break; 1389797ac58cSKevin Wolf default: 1390797ac58cSKevin Wolf g_free(ctx); 1391b444d0e9SMax Reitz qemuio_command_usage(&aio_read_cmd); 1392b32d7a39SMax Reitz return -EINVAL; 1393797ac58cSKevin Wolf } 1394797ac58cSKevin Wolf } 1395797ac58cSKevin Wolf 1396797ac58cSKevin Wolf if (optind > argc - 2) { 1397797ac58cSKevin Wolf g_free(ctx); 1398b444d0e9SMax Reitz qemuio_command_usage(&aio_read_cmd); 1399b32d7a39SMax Reitz return -EINVAL; 1400797ac58cSKevin Wolf } 1401797ac58cSKevin Wolf 1402797ac58cSKevin Wolf ctx->offset = cvtnum(argv[optind]); 1403797ac58cSKevin Wolf if (ctx->offset < 0) { 1404b32d7a39SMax Reitz int ret = ctx->offset; 1405b32d7a39SMax Reitz print_cvtnum_err(ret, argv[optind]); 1406797ac58cSKevin Wolf g_free(ctx); 1407b32d7a39SMax Reitz return ret; 1408797ac58cSKevin Wolf } 1409797ac58cSKevin Wolf optind++; 1410797ac58cSKevin Wolf 1411797ac58cSKevin Wolf nr_iov = argc - optind; 14124c7b7e9bSMax Reitz ctx->buf = create_iovec(blk, &ctx->qiov, &argv[optind], nr_iov, 0xab); 1413797ac58cSKevin Wolf if (ctx->buf == NULL) { 1414556c2b60SAlberto Garcia block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_READ); 1415797ac58cSKevin Wolf g_free(ctx); 1416b32d7a39SMax Reitz return -EINVAL; 1417797ac58cSKevin Wolf } 1418797ac58cSKevin Wolf 1419797ac58cSKevin Wolf gettimeofday(&ctx->t1, NULL); 14204c7b7e9bSMax Reitz block_acct_start(blk_get_stats(blk), &ctx->acct, ctx->qiov.size, 14214c7b7e9bSMax Reitz BLOCK_ACCT_READ); 14227b3f9712SEric Blake blk_aio_preadv(blk, ctx->offset, &ctx->qiov, 0, aio_read_done, ctx); 1423b32d7a39SMax Reitz return 0; 1424797ac58cSKevin Wolf } 1425797ac58cSKevin Wolf 1426797ac58cSKevin Wolf static void aio_write_help(void) 1427797ac58cSKevin Wolf { 1428797ac58cSKevin Wolf printf( 1429797ac58cSKevin Wolf "\n" 1430797ac58cSKevin Wolf " asynchronously writes a range of bytes from the given offset source\n" 1431797ac58cSKevin Wolf " from multiple buffers\n" 1432797ac58cSKevin Wolf "\n" 1433797ac58cSKevin Wolf " Example:\n" 1434797ac58cSKevin Wolf " 'aio_write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" 1435797ac58cSKevin Wolf "\n" 1436797ac58cSKevin Wolf " Writes into a segment of the currently open file, using a buffer\n" 1437797ac58cSKevin Wolf " filled with a set pattern (0xcdcdcdcd).\n" 1438797ac58cSKevin Wolf " The write is performed asynchronously and the aio_flush command must be\n" 1439797ac58cSKevin Wolf " used to ensure all outstanding aio requests have been completed.\n" 1440b32d7a39SMax Reitz " Note that due to its asynchronous nature, this command will be\n" 1441b32d7a39SMax Reitz " considered successful once the request is submitted, independently\n" 1442b32d7a39SMax Reitz " of potential I/O errors or pattern mismatches.\n" 1443797ac58cSKevin Wolf " -P, -- use different pattern to fill file\n" 1444797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1445770e0e0eSEric Blake " -f, -- use Force Unit Access semantics\n" 144637546ff2SEric Blake " -i, -- treat request as invalid, for exercising stats\n" 1447797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1448c2e001ccSEric Blake " -u, -- with -z, allow unmapping\n" 1449d004bd52SEric Blake " -z, -- write zeroes using blk_aio_pwrite_zeroes\n" 1450797ac58cSKevin Wolf "\n"); 1451797ac58cSKevin Wolf } 1452797ac58cSKevin Wolf 1453b32d7a39SMax Reitz static int aio_write_f(BlockBackend *blk, int argc, char **argv); 1454797ac58cSKevin Wolf 1455797ac58cSKevin Wolf static const cmdinfo_t aio_write_cmd = { 1456797ac58cSKevin Wolf .name = "aio_write", 1457797ac58cSKevin Wolf .cfunc = aio_write_f, 1458887354bdSKevin Wolf .perm = BLK_PERM_WRITE, 1459797ac58cSKevin Wolf .argmin = 2, 1460797ac58cSKevin Wolf .argmax = -1, 146137546ff2SEric Blake .args = "[-Cfiquz] [-P pattern] off len [len..]", 1462797ac58cSKevin Wolf .oneline = "asynchronously writes a number of bytes", 1463797ac58cSKevin Wolf .help = aio_write_help, 1464797ac58cSKevin Wolf }; 1465797ac58cSKevin Wolf 1466b32d7a39SMax Reitz static int aio_write_f(BlockBackend *blk, int argc, char **argv) 1467797ac58cSKevin Wolf { 1468797ac58cSKevin Wolf int nr_iov, c; 1469797ac58cSKevin Wolf int pattern = 0xcd; 1470797ac58cSKevin Wolf struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); 1471770e0e0eSEric Blake int flags = 0; 1472797ac58cSKevin Wolf 14734c7b7e9bSMax Reitz ctx->blk = blk; 147437546ff2SEric Blake while ((c = getopt(argc, argv, "CfiqP:uz")) != -1) { 1475797ac58cSKevin Wolf switch (c) { 1476797ac58cSKevin Wolf case 'C': 1477dc38852aSEric Blake ctx->Cflag = true; 1478797ac58cSKevin Wolf break; 1479770e0e0eSEric Blake case 'f': 1480770e0e0eSEric Blake flags |= BDRV_REQ_FUA; 1481770e0e0eSEric Blake break; 1482797ac58cSKevin Wolf case 'q': 1483dc38852aSEric Blake ctx->qflag = true; 1484797ac58cSKevin Wolf break; 1485c2e001ccSEric Blake case 'u': 1486c2e001ccSEric Blake flags |= BDRV_REQ_MAY_UNMAP; 1487c2e001ccSEric Blake break; 1488797ac58cSKevin Wolf case 'P': 1489797ac58cSKevin Wolf pattern = parse_pattern(optarg); 1490797ac58cSKevin Wolf if (pattern < 0) { 1491797ac58cSKevin Wolf g_free(ctx); 1492b32d7a39SMax Reitz return -EINVAL; 1493797ac58cSKevin Wolf } 1494797ac58cSKevin Wolf break; 149537546ff2SEric Blake case 'i': 149637546ff2SEric Blake printf("injecting invalid write request\n"); 149737546ff2SEric Blake block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_WRITE); 149837546ff2SEric Blake g_free(ctx); 1499b32d7a39SMax Reitz return 0; 15005ceb7765SKevin Wolf case 'z': 1501dc38852aSEric Blake ctx->zflag = true; 15025ceb7765SKevin Wolf break; 1503797ac58cSKevin Wolf default: 1504797ac58cSKevin Wolf g_free(ctx); 1505b444d0e9SMax Reitz qemuio_command_usage(&aio_write_cmd); 1506b32d7a39SMax Reitz return -EINVAL; 1507797ac58cSKevin Wolf } 1508797ac58cSKevin Wolf } 1509797ac58cSKevin Wolf 1510797ac58cSKevin Wolf if (optind > argc - 2) { 1511797ac58cSKevin Wolf g_free(ctx); 1512b444d0e9SMax Reitz qemuio_command_usage(&aio_write_cmd); 1513b32d7a39SMax Reitz return -EINVAL; 1514797ac58cSKevin Wolf } 1515797ac58cSKevin Wolf 15165ceb7765SKevin Wolf if (ctx->zflag && optind != argc - 2) { 15175ceb7765SKevin Wolf printf("-z supports only a single length parameter\n"); 15185ceb7765SKevin Wolf g_free(ctx); 1519b32d7a39SMax Reitz return -EINVAL; 15205ceb7765SKevin Wolf } 15215ceb7765SKevin Wolf 1522c2e001ccSEric Blake if ((flags & BDRV_REQ_MAY_UNMAP) && !ctx->zflag) { 1523c2e001ccSEric Blake printf("-u requires -z to be specified\n"); 15244ca1d340SEric Blake g_free(ctx); 1525b32d7a39SMax Reitz return -EINVAL; 1526c2e001ccSEric Blake } 1527c2e001ccSEric Blake 15285ceb7765SKevin Wolf if (ctx->zflag && ctx->Pflag) { 15295ceb7765SKevin Wolf printf("-z and -P cannot be specified at the same time\n"); 15305ceb7765SKevin Wolf g_free(ctx); 1531b32d7a39SMax Reitz return -EINVAL; 15325ceb7765SKevin Wolf } 15335ceb7765SKevin Wolf 1534797ac58cSKevin Wolf ctx->offset = cvtnum(argv[optind]); 1535797ac58cSKevin Wolf if (ctx->offset < 0) { 1536b32d7a39SMax Reitz int ret = ctx->offset; 1537b32d7a39SMax Reitz print_cvtnum_err(ret, argv[optind]); 1538797ac58cSKevin Wolf g_free(ctx); 1539b32d7a39SMax Reitz return ret; 1540797ac58cSKevin Wolf } 1541797ac58cSKevin Wolf optind++; 1542797ac58cSKevin Wolf 15435ceb7765SKevin Wolf if (ctx->zflag) { 15445ceb7765SKevin Wolf int64_t count = cvtnum(argv[optind]); 15455ceb7765SKevin Wolf if (count < 0) { 15465ceb7765SKevin Wolf print_cvtnum_err(count, argv[optind]); 15470e01b76eSKevin Wolf g_free(ctx); 1548b32d7a39SMax Reitz return count; 15495ceb7765SKevin Wolf } 15505ceb7765SKevin Wolf 15515ceb7765SKevin Wolf ctx->qiov.size = count; 1552d004bd52SEric Blake blk_aio_pwrite_zeroes(blk, ctx->offset, count, flags, aio_write_done, 1553770e0e0eSEric Blake ctx); 15545ceb7765SKevin Wolf } else { 1555797ac58cSKevin Wolf nr_iov = argc - optind; 15565ceb7765SKevin Wolf ctx->buf = create_iovec(blk, &ctx->qiov, &argv[optind], nr_iov, 15575ceb7765SKevin Wolf pattern); 1558797ac58cSKevin Wolf if (ctx->buf == NULL) { 1559556c2b60SAlberto Garcia block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_WRITE); 1560797ac58cSKevin Wolf g_free(ctx); 1561b32d7a39SMax Reitz return -EINVAL; 1562797ac58cSKevin Wolf } 1563797ac58cSKevin Wolf 1564797ac58cSKevin Wolf gettimeofday(&ctx->t1, NULL); 15654c7b7e9bSMax Reitz block_acct_start(blk_get_stats(blk), &ctx->acct, ctx->qiov.size, 15664c7b7e9bSMax Reitz BLOCK_ACCT_WRITE); 15675ceb7765SKevin Wolf 1568770e0e0eSEric Blake blk_aio_pwritev(blk, ctx->offset, &ctx->qiov, flags, aio_write_done, 1569770e0e0eSEric Blake ctx); 15705ceb7765SKevin Wolf } 1571b32d7a39SMax Reitz 1572b32d7a39SMax Reitz return 0; 1573797ac58cSKevin Wolf } 1574797ac58cSKevin Wolf 1575b32d7a39SMax Reitz static int aio_flush_f(BlockBackend *blk, int argc, char **argv) 1576797ac58cSKevin Wolf { 1577556c2b60SAlberto Garcia BlockAcctCookie cookie; 1578556c2b60SAlberto Garcia block_acct_start(blk_get_stats(blk), &cookie, 0, BLOCK_ACCT_FLUSH); 15794c7b7e9bSMax Reitz blk_drain_all(); 1580556c2b60SAlberto Garcia block_acct_done(blk_get_stats(blk), &cookie); 1581b32d7a39SMax Reitz return 0; 1582797ac58cSKevin Wolf } 1583797ac58cSKevin Wolf 1584797ac58cSKevin Wolf static const cmdinfo_t aio_flush_cmd = { 1585797ac58cSKevin Wolf .name = "aio_flush", 1586797ac58cSKevin Wolf .cfunc = aio_flush_f, 1587797ac58cSKevin Wolf .oneline = "completes all outstanding aio requests" 1588797ac58cSKevin Wolf }; 1589797ac58cSKevin Wolf 1590b32d7a39SMax Reitz static int flush_f(BlockBackend *blk, int argc, char **argv) 1591797ac58cSKevin Wolf { 1592b32d7a39SMax Reitz return blk_flush(blk); 1593797ac58cSKevin Wolf } 1594797ac58cSKevin Wolf 1595797ac58cSKevin Wolf static const cmdinfo_t flush_cmd = { 1596797ac58cSKevin Wolf .name = "flush", 1597797ac58cSKevin Wolf .altname = "f", 1598797ac58cSKevin Wolf .cfunc = flush_f, 1599797ac58cSKevin Wolf .oneline = "flush all in-core file state to disk", 1600797ac58cSKevin Wolf }; 1601797ac58cSKevin Wolf 1602b32d7a39SMax Reitz static int truncate_f(BlockBackend *blk, int argc, char **argv) 1603797ac58cSKevin Wolf { 1604ed3d2ec9SMax Reitz Error *local_err = NULL; 1605797ac58cSKevin Wolf int64_t offset; 1606797ac58cSKevin Wolf int ret; 1607797ac58cSKevin Wolf 1608797ac58cSKevin Wolf offset = cvtnum(argv[1]); 1609797ac58cSKevin Wolf if (offset < 0) { 1610a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[1]); 1611b32d7a39SMax Reitz return offset; 1612797ac58cSKevin Wolf } 1613797ac58cSKevin Wolf 16143a691c50SMax Reitz ret = blk_truncate(blk, offset, PREALLOC_MODE_OFF, &local_err); 1615797ac58cSKevin Wolf if (ret < 0) { 1616ed3d2ec9SMax Reitz error_report_err(local_err); 1617b32d7a39SMax Reitz return ret; 1618797ac58cSKevin Wolf } 1619b32d7a39SMax Reitz 1620b32d7a39SMax Reitz return 0; 1621797ac58cSKevin Wolf } 1622797ac58cSKevin Wolf 1623797ac58cSKevin Wolf static const cmdinfo_t truncate_cmd = { 1624797ac58cSKevin Wolf .name = "truncate", 1625797ac58cSKevin Wolf .altname = "t", 1626797ac58cSKevin Wolf .cfunc = truncate_f, 1627887354bdSKevin Wolf .perm = BLK_PERM_WRITE | BLK_PERM_RESIZE, 1628797ac58cSKevin Wolf .argmin = 1, 1629797ac58cSKevin Wolf .argmax = 1, 1630797ac58cSKevin Wolf .args = "off", 1631797ac58cSKevin Wolf .oneline = "truncates the current file at the given offset", 1632797ac58cSKevin Wolf }; 1633797ac58cSKevin Wolf 1634b32d7a39SMax Reitz static int length_f(BlockBackend *blk, int argc, char **argv) 1635797ac58cSKevin Wolf { 1636797ac58cSKevin Wolf int64_t size; 1637797ac58cSKevin Wolf char s1[64]; 1638797ac58cSKevin Wolf 16394c7b7e9bSMax Reitz size = blk_getlength(blk); 1640797ac58cSKevin Wolf if (size < 0) { 1641797ac58cSKevin Wolf printf("getlength: %s\n", strerror(-size)); 1642b32d7a39SMax Reitz return size; 1643797ac58cSKevin Wolf } 1644797ac58cSKevin Wolf 1645797ac58cSKevin Wolf cvtstr(size, s1, sizeof(s1)); 1646797ac58cSKevin Wolf printf("%s\n", s1); 1647b32d7a39SMax Reitz return 0; 1648797ac58cSKevin Wolf } 1649797ac58cSKevin Wolf 1650797ac58cSKevin Wolf 1651797ac58cSKevin Wolf static const cmdinfo_t length_cmd = { 1652797ac58cSKevin Wolf .name = "length", 1653797ac58cSKevin Wolf .altname = "l", 1654797ac58cSKevin Wolf .cfunc = length_f, 1655797ac58cSKevin Wolf .oneline = "gets the length of the current file", 1656797ac58cSKevin Wolf }; 1657797ac58cSKevin Wolf 1658797ac58cSKevin Wolf 1659b32d7a39SMax Reitz static int info_f(BlockBackend *blk, int argc, char **argv) 1660797ac58cSKevin Wolf { 16614c7b7e9bSMax Reitz BlockDriverState *bs = blk_bs(blk); 1662797ac58cSKevin Wolf BlockDriverInfo bdi; 1663a8d8ecb7SMax Reitz ImageInfoSpecific *spec_info; 1664797ac58cSKevin Wolf char s1[64], s2[64]; 1665797ac58cSKevin Wolf int ret; 1666797ac58cSKevin Wolf 1667797ac58cSKevin Wolf if (bs->drv && bs->drv->format_name) { 1668797ac58cSKevin Wolf printf("format name: %s\n", bs->drv->format_name); 1669797ac58cSKevin Wolf } 1670797ac58cSKevin Wolf if (bs->drv && bs->drv->protocol_name) { 1671797ac58cSKevin Wolf printf("format name: %s\n", bs->drv->protocol_name); 1672797ac58cSKevin Wolf } 1673797ac58cSKevin Wolf 1674797ac58cSKevin Wolf ret = bdrv_get_info(bs, &bdi); 1675797ac58cSKevin Wolf if (ret) { 1676b32d7a39SMax Reitz return ret; 1677797ac58cSKevin Wolf } 1678797ac58cSKevin Wolf 1679797ac58cSKevin Wolf cvtstr(bdi.cluster_size, s1, sizeof(s1)); 1680797ac58cSKevin Wolf cvtstr(bdi.vm_state_offset, s2, sizeof(s2)); 1681797ac58cSKevin Wolf 1682797ac58cSKevin Wolf printf("cluster size: %s\n", s1); 1683797ac58cSKevin Wolf printf("vm state offset: %s\n", s2); 1684797ac58cSKevin Wolf 1685a8d8ecb7SMax Reitz spec_info = bdrv_get_specific_info(bs); 1686a8d8ecb7SMax Reitz if (spec_info) { 1687a8d8ecb7SMax Reitz printf("Format specific information:\n"); 1688a8d8ecb7SMax Reitz bdrv_image_info_specific_dump(fprintf, stdout, spec_info); 1689a8d8ecb7SMax Reitz qapi_free_ImageInfoSpecific(spec_info); 1690a8d8ecb7SMax Reitz } 1691b32d7a39SMax Reitz 1692b32d7a39SMax Reitz return 0; 1693797ac58cSKevin Wolf } 1694797ac58cSKevin Wolf 1695797ac58cSKevin Wolf 1696797ac58cSKevin Wolf 1697797ac58cSKevin Wolf static const cmdinfo_t info_cmd = { 1698797ac58cSKevin Wolf .name = "info", 1699797ac58cSKevin Wolf .altname = "i", 1700797ac58cSKevin Wolf .cfunc = info_f, 1701797ac58cSKevin Wolf .oneline = "prints information about the current file", 1702797ac58cSKevin Wolf }; 1703797ac58cSKevin Wolf 1704797ac58cSKevin Wolf static void discard_help(void) 1705797ac58cSKevin Wolf { 1706797ac58cSKevin Wolf printf( 1707797ac58cSKevin Wolf "\n" 1708797ac58cSKevin Wolf " discards a range of bytes from the given offset\n" 1709797ac58cSKevin Wolf "\n" 1710797ac58cSKevin Wolf " Example:\n" 1711797ac58cSKevin Wolf " 'discard 512 1k' - discards 1 kilobyte from 512 bytes into the file\n" 1712797ac58cSKevin Wolf "\n" 1713797ac58cSKevin Wolf " Discards a segment of the currently open file.\n" 1714797ac58cSKevin Wolf " -C, -- report statistics in a machine parsable format\n" 1715797ac58cSKevin Wolf " -q, -- quiet mode, do not show I/O statistics\n" 1716797ac58cSKevin Wolf "\n"); 1717797ac58cSKevin Wolf } 1718797ac58cSKevin Wolf 1719b32d7a39SMax Reitz static int discard_f(BlockBackend *blk, int argc, char **argv); 1720797ac58cSKevin Wolf 1721797ac58cSKevin Wolf static const cmdinfo_t discard_cmd = { 1722797ac58cSKevin Wolf .name = "discard", 1723797ac58cSKevin Wolf .altname = "d", 1724797ac58cSKevin Wolf .cfunc = discard_f, 1725887354bdSKevin Wolf .perm = BLK_PERM_WRITE, 1726797ac58cSKevin Wolf .argmin = 2, 1727797ac58cSKevin Wolf .argmax = -1, 1728797ac58cSKevin Wolf .args = "[-Cq] off len", 1729797ac58cSKevin Wolf .oneline = "discards a number of bytes at a specified offset", 1730797ac58cSKevin Wolf .help = discard_help, 1731797ac58cSKevin Wolf }; 1732797ac58cSKevin Wolf 1733b32d7a39SMax Reitz static int discard_f(BlockBackend *blk, int argc, char **argv) 1734797ac58cSKevin Wolf { 1735797ac58cSKevin Wolf struct timeval t1, t2; 1736dc38852aSEric Blake bool Cflag = false, qflag = false; 1737797ac58cSKevin Wolf int c, ret; 1738f5a5ca79SManos Pitsidianakis int64_t offset, bytes; 1739797ac58cSKevin Wolf 1740b062ad86SEric Blake while ((c = getopt(argc, argv, "Cq")) != -1) { 1741797ac58cSKevin Wolf switch (c) { 1742797ac58cSKevin Wolf case 'C': 1743dc38852aSEric Blake Cflag = true; 1744797ac58cSKevin Wolf break; 1745797ac58cSKevin Wolf case 'q': 1746dc38852aSEric Blake qflag = true; 1747797ac58cSKevin Wolf break; 1748797ac58cSKevin Wolf default: 1749b444d0e9SMax Reitz qemuio_command_usage(&discard_cmd); 1750b32d7a39SMax Reitz return -EINVAL; 1751797ac58cSKevin Wolf } 1752797ac58cSKevin Wolf } 1753797ac58cSKevin Wolf 1754797ac58cSKevin Wolf if (optind != argc - 2) { 1755b444d0e9SMax Reitz qemuio_command_usage(&discard_cmd); 1756b32d7a39SMax Reitz return -EINVAL; 1757797ac58cSKevin Wolf } 1758797ac58cSKevin Wolf 1759797ac58cSKevin Wolf offset = cvtnum(argv[optind]); 1760797ac58cSKevin Wolf if (offset < 0) { 1761a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[optind]); 1762b32d7a39SMax Reitz return offset; 1763797ac58cSKevin Wolf } 1764797ac58cSKevin Wolf 1765797ac58cSKevin Wolf optind++; 1766f5a5ca79SManos Pitsidianakis bytes = cvtnum(argv[optind]); 1767f5a5ca79SManos Pitsidianakis if (bytes < 0) { 1768f5a5ca79SManos Pitsidianakis print_cvtnum_err(bytes, argv[optind]); 1769b32d7a39SMax Reitz return bytes; 1770f5a5ca79SManos Pitsidianakis } else if (bytes >> BDRV_SECTOR_BITS > BDRV_REQUEST_MAX_SECTORS) { 17719b0beaf3SJohn Snow printf("length cannot exceed %"PRIu64", given %s\n", 1772a3674679SMax Reitz (uint64_t)BDRV_REQUEST_MAX_SECTORS << BDRV_SECTOR_BITS, 17739b0beaf3SJohn Snow argv[optind]); 1774b32d7a39SMax Reitz return -EINVAL; 1775797ac58cSKevin Wolf } 1776797ac58cSKevin Wolf 1777797ac58cSKevin Wolf gettimeofday(&t1, NULL); 1778f5a5ca79SManos Pitsidianakis ret = blk_pdiscard(blk, offset, bytes); 1779797ac58cSKevin Wolf gettimeofday(&t2, NULL); 1780797ac58cSKevin Wolf 1781797ac58cSKevin Wolf if (ret < 0) { 1782797ac58cSKevin Wolf printf("discard failed: %s\n", strerror(-ret)); 1783b32d7a39SMax Reitz return ret; 1784797ac58cSKevin Wolf } 1785797ac58cSKevin Wolf 1786797ac58cSKevin Wolf /* Finally, report back -- -C gives a parsable format */ 1787797ac58cSKevin Wolf if (!qflag) { 1788797ac58cSKevin Wolf t2 = tsub(t2, t1); 1789f5a5ca79SManos Pitsidianakis print_report("discard", &t2, offset, bytes, bytes, 1, Cflag); 1790797ac58cSKevin Wolf } 1791b32d7a39SMax Reitz 1792b32d7a39SMax Reitz return 0; 1793797ac58cSKevin Wolf } 1794797ac58cSKevin Wolf 1795b32d7a39SMax Reitz static int alloc_f(BlockBackend *blk, int argc, char **argv) 1796797ac58cSKevin Wolf { 17974c7b7e9bSMax Reitz BlockDriverState *bs = blk_bs(blk); 1798d6a644bbSEric Blake int64_t offset, start, remaining, count; 1799797ac58cSKevin Wolf char s1[64]; 1800d6a644bbSEric Blake int ret; 1801d6a644bbSEric Blake int64_t num, sum_alloc; 1802797ac58cSKevin Wolf 1803d6a644bbSEric Blake start = offset = cvtnum(argv[1]); 1804797ac58cSKevin Wolf if (offset < 0) { 1805a9ecfa00SJohn Snow print_cvtnum_err(offset, argv[1]); 1806b32d7a39SMax Reitz return offset; 1807797ac58cSKevin Wolf } 1808797ac58cSKevin Wolf 1809797ac58cSKevin Wolf if (argc == 3) { 18104401fdc7SEric Blake count = cvtnum(argv[2]); 18114401fdc7SEric Blake if (count < 0) { 18124401fdc7SEric Blake print_cvtnum_err(count, argv[2]); 1813b32d7a39SMax Reitz return count; 1814797ac58cSKevin Wolf } 1815797ac58cSKevin Wolf } else { 18164401fdc7SEric Blake count = BDRV_SECTOR_SIZE; 1817797ac58cSKevin Wolf } 1818797ac58cSKevin Wolf 1819d6a644bbSEric Blake remaining = count; 1820797ac58cSKevin Wolf sum_alloc = 0; 1821797ac58cSKevin Wolf while (remaining) { 1822d6a644bbSEric Blake ret = bdrv_is_allocated(bs, offset, remaining, &num); 1823d663640cSPaolo Bonzini if (ret < 0) { 1824d663640cSPaolo Bonzini printf("is_allocated failed: %s\n", strerror(-ret)); 1825b32d7a39SMax Reitz return ret; 1826d663640cSPaolo Bonzini } 1827d6a644bbSEric Blake offset += num; 1828797ac58cSKevin Wolf remaining -= num; 1829797ac58cSKevin Wolf if (ret) { 1830797ac58cSKevin Wolf sum_alloc += num; 1831797ac58cSKevin Wolf } 1832797ac58cSKevin Wolf if (num == 0) { 1833d6a644bbSEric Blake count -= remaining; 1834797ac58cSKevin Wolf remaining = 0; 1835797ac58cSKevin Wolf } 1836797ac58cSKevin Wolf } 1837797ac58cSKevin Wolf 1838d6a644bbSEric Blake cvtstr(start, s1, sizeof(s1)); 1839797ac58cSKevin Wolf 18404401fdc7SEric Blake printf("%"PRId64"/%"PRId64" bytes allocated at offset %s\n", 1841d6a644bbSEric Blake sum_alloc, count, s1); 1842b32d7a39SMax Reitz return 0; 1843797ac58cSKevin Wolf } 1844797ac58cSKevin Wolf 1845797ac58cSKevin Wolf static const cmdinfo_t alloc_cmd = { 1846797ac58cSKevin Wolf .name = "alloc", 1847797ac58cSKevin Wolf .altname = "a", 1848797ac58cSKevin Wolf .argmin = 1, 1849797ac58cSKevin Wolf .argmax = 2, 1850797ac58cSKevin Wolf .cfunc = alloc_f, 18514401fdc7SEric Blake .args = "offset [count]", 18524401fdc7SEric Blake .oneline = "checks if offset is allocated in the file", 1853797ac58cSKevin Wolf }; 1854797ac58cSKevin Wolf 1855797ac58cSKevin Wolf 1856d6a644bbSEric Blake static int map_is_allocated(BlockDriverState *bs, int64_t offset, 1857d6a644bbSEric Blake int64_t bytes, int64_t *pnum) 1858797ac58cSKevin Wolf { 1859d6a644bbSEric Blake int64_t num; 1860d6a644bbSEric Blake int num_checked; 1861797ac58cSKevin Wolf int ret, firstret; 1862797ac58cSKevin Wolf 1863d6a644bbSEric Blake num_checked = MIN(bytes, BDRV_REQUEST_MAX_BYTES); 1864d6a644bbSEric Blake ret = bdrv_is_allocated(bs, offset, num_checked, &num); 1865797ac58cSKevin Wolf if (ret < 0) { 1866797ac58cSKevin Wolf return ret; 1867797ac58cSKevin Wolf } 1868797ac58cSKevin Wolf 1869797ac58cSKevin Wolf firstret = ret; 1870797ac58cSKevin Wolf *pnum = num; 1871797ac58cSKevin Wolf 1872d6a644bbSEric Blake while (bytes > 0 && ret == firstret) { 1873d6a644bbSEric Blake offset += num; 1874d6a644bbSEric Blake bytes -= num; 1875797ac58cSKevin Wolf 1876d6a644bbSEric Blake num_checked = MIN(bytes, BDRV_REQUEST_MAX_BYTES); 1877d6a644bbSEric Blake ret = bdrv_is_allocated(bs, offset, num_checked, &num); 18784b25bbc4SMax Reitz if (ret == firstret && num) { 1879797ac58cSKevin Wolf *pnum += num; 1880797ac58cSKevin Wolf } else { 1881797ac58cSKevin Wolf break; 1882797ac58cSKevin Wolf } 1883797ac58cSKevin Wolf } 1884797ac58cSKevin Wolf 1885797ac58cSKevin Wolf return firstret; 1886797ac58cSKevin Wolf } 1887797ac58cSKevin Wolf 1888b32d7a39SMax Reitz static int map_f(BlockBackend *blk, int argc, char **argv) 1889797ac58cSKevin Wolf { 1890d6a644bbSEric Blake int64_t offset, bytes; 18916f3c90afSEric Blake char s1[64], s2[64]; 1892797ac58cSKevin Wolf int64_t num; 1893797ac58cSKevin Wolf int ret; 1894797ac58cSKevin Wolf const char *retstr; 1895797ac58cSKevin Wolf 1896797ac58cSKevin Wolf offset = 0; 1897d6a644bbSEric Blake bytes = blk_getlength(blk); 1898d6a644bbSEric Blake if (bytes < 0) { 1899d6a644bbSEric Blake error_report("Failed to query image length: %s", strerror(-bytes)); 1900b32d7a39SMax Reitz return bytes; 19014c7b7e9bSMax Reitz } 19024c7b7e9bSMax Reitz 1903d6a644bbSEric Blake while (bytes) { 1904d6a644bbSEric Blake ret = map_is_allocated(blk_bs(blk), offset, bytes, &num); 1905797ac58cSKevin Wolf if (ret < 0) { 1906797ac58cSKevin Wolf error_report("Failed to get allocation status: %s", strerror(-ret)); 1907b32d7a39SMax Reitz return ret; 19084b25bbc4SMax Reitz } else if (!num) { 19094b25bbc4SMax Reitz error_report("Unexpected end of image"); 1910b32d7a39SMax Reitz return -EIO; 1911797ac58cSKevin Wolf } 1912797ac58cSKevin Wolf 1913797ac58cSKevin Wolf retstr = ret ? " allocated" : "not allocated"; 1914d6a644bbSEric Blake cvtstr(num, s1, sizeof(s1)); 1915d6a644bbSEric Blake cvtstr(offset, s2, sizeof(s2)); 19166f3c90afSEric Blake printf("%s (0x%" PRIx64 ") bytes %s at offset %s (0x%" PRIx64 ")\n", 1917d6a644bbSEric Blake s1, num, retstr, s2, offset); 1918797ac58cSKevin Wolf 1919797ac58cSKevin Wolf offset += num; 1920d6a644bbSEric Blake bytes -= num; 1921d6a644bbSEric Blake } 1922b32d7a39SMax Reitz 1923b32d7a39SMax Reitz return 0; 1924797ac58cSKevin Wolf } 1925797ac58cSKevin Wolf 1926797ac58cSKevin Wolf static const cmdinfo_t map_cmd = { 1927797ac58cSKevin Wolf .name = "map", 1928797ac58cSKevin Wolf .argmin = 0, 1929797ac58cSKevin Wolf .argmax = 0, 1930797ac58cSKevin Wolf .cfunc = map_f, 1931797ac58cSKevin Wolf .args = "", 1932797ac58cSKevin Wolf .oneline = "prints the allocated areas of a file", 1933797ac58cSKevin Wolf }; 1934797ac58cSKevin Wolf 19355bbd2e59SKevin Wolf static void reopen_help(void) 19365bbd2e59SKevin Wolf { 19375bbd2e59SKevin Wolf printf( 19385bbd2e59SKevin Wolf "\n" 19395bbd2e59SKevin Wolf " Changes the open options of an already opened image\n" 19405bbd2e59SKevin Wolf "\n" 19415bbd2e59SKevin Wolf " Example:\n" 19425bbd2e59SKevin Wolf " 'reopen -o lazy-refcounts=on' - activates lazy refcount writeback on a qcow2 image\n" 19435bbd2e59SKevin Wolf "\n" 19445bbd2e59SKevin Wolf " -r, -- Reopen the image read-only\n" 1945ea92203cSKevin Wolf " -w, -- Reopen the image read-write\n" 19465bbd2e59SKevin Wolf " -c, -- Change the cache mode to the given value\n" 19475bbd2e59SKevin Wolf " -o, -- Changes block driver options (cf. 'open' command)\n" 19485bbd2e59SKevin Wolf "\n"); 19495bbd2e59SKevin Wolf } 19505bbd2e59SKevin Wolf 1951b32d7a39SMax Reitz static int reopen_f(BlockBackend *blk, int argc, char **argv); 19525bbd2e59SKevin Wolf 19535bbd2e59SKevin Wolf static QemuOptsList reopen_opts = { 19545bbd2e59SKevin Wolf .name = "reopen", 19555bbd2e59SKevin Wolf .merge_lists = true, 19565bbd2e59SKevin Wolf .head = QTAILQ_HEAD_INITIALIZER(reopen_opts.head), 19575bbd2e59SKevin Wolf .desc = { 19585bbd2e59SKevin Wolf /* no elements => accept any params */ 19595bbd2e59SKevin Wolf { /* end of list */ } 19605bbd2e59SKevin Wolf }, 19615bbd2e59SKevin Wolf }; 19625bbd2e59SKevin Wolf 19635bbd2e59SKevin Wolf static const cmdinfo_t reopen_cmd = { 19645bbd2e59SKevin Wolf .name = "reopen", 19655bbd2e59SKevin Wolf .argmin = 0, 19665bbd2e59SKevin Wolf .argmax = -1, 19675bbd2e59SKevin Wolf .cfunc = reopen_f, 1968ea92203cSKevin Wolf .args = "[(-r|-w)] [-c cache] [-o options]", 19695bbd2e59SKevin Wolf .oneline = "reopens an image with new options", 19705bbd2e59SKevin Wolf .help = reopen_help, 19715bbd2e59SKevin Wolf }; 19725bbd2e59SKevin Wolf 1973b32d7a39SMax Reitz static int reopen_f(BlockBackend *blk, int argc, char **argv) 19745bbd2e59SKevin Wolf { 19755bbd2e59SKevin Wolf BlockDriverState *bs = blk_bs(blk); 19765bbd2e59SKevin Wolf QemuOpts *qopts; 19775bbd2e59SKevin Wolf QDict *opts; 19785bbd2e59SKevin Wolf int c; 19795bbd2e59SKevin Wolf int flags = bs->open_flags; 198019dbecdcSKevin Wolf bool writethrough = !blk_enable_write_cache(blk); 1981ea92203cSKevin Wolf bool has_rw_option = false; 1982dc900c35SAlberto Garcia bool has_cache_option = false; 19835bbd2e59SKevin Wolf 19845bbd2e59SKevin Wolf BlockReopenQueue *brq; 19855bbd2e59SKevin Wolf Error *local_err = NULL; 19865bbd2e59SKevin Wolf 1987ea92203cSKevin Wolf while ((c = getopt(argc, argv, "c:o:rw")) != -1) { 19885bbd2e59SKevin Wolf switch (c) { 19895bbd2e59SKevin Wolf case 'c': 199019dbecdcSKevin Wolf if (bdrv_parse_cache_mode(optarg, &flags, &writethrough) < 0) { 19915bbd2e59SKevin Wolf error_report("Invalid cache option: %s", optarg); 1992b32d7a39SMax Reitz return -EINVAL; 19935bbd2e59SKevin Wolf } 1994dc900c35SAlberto Garcia has_cache_option = true; 19955bbd2e59SKevin Wolf break; 19965bbd2e59SKevin Wolf case 'o': 19975bbd2e59SKevin Wolf if (!qemu_opts_parse_noisily(&reopen_opts, optarg, 0)) { 19985bbd2e59SKevin Wolf qemu_opts_reset(&reopen_opts); 1999b32d7a39SMax Reitz return -EINVAL; 20005bbd2e59SKevin Wolf } 20015bbd2e59SKevin Wolf break; 20025bbd2e59SKevin Wolf case 'r': 2003ea92203cSKevin Wolf if (has_rw_option) { 2004ea92203cSKevin Wolf error_report("Only one -r/-w option may be given"); 2005b32d7a39SMax Reitz return -EINVAL; 2006ea92203cSKevin Wolf } 20075bbd2e59SKevin Wolf flags &= ~BDRV_O_RDWR; 2008ea92203cSKevin Wolf has_rw_option = true; 2009ea92203cSKevin Wolf break; 2010ea92203cSKevin Wolf case 'w': 2011ea92203cSKevin Wolf if (has_rw_option) { 2012ea92203cSKevin Wolf error_report("Only one -r/-w option may be given"); 2013b32d7a39SMax Reitz return -EINVAL; 2014ea92203cSKevin Wolf } 2015ea92203cSKevin Wolf flags |= BDRV_O_RDWR; 2016ea92203cSKevin Wolf has_rw_option = true; 20175bbd2e59SKevin Wolf break; 20185bbd2e59SKevin Wolf default: 20195bbd2e59SKevin Wolf qemu_opts_reset(&reopen_opts); 2020b444d0e9SMax Reitz qemuio_command_usage(&reopen_cmd); 2021b32d7a39SMax Reitz return -EINVAL; 20225bbd2e59SKevin Wolf } 20235bbd2e59SKevin Wolf } 20245bbd2e59SKevin Wolf 20255bbd2e59SKevin Wolf if (optind != argc) { 20265bbd2e59SKevin Wolf qemu_opts_reset(&reopen_opts); 2027b444d0e9SMax Reitz qemuio_command_usage(&reopen_cmd); 2028b32d7a39SMax Reitz return -EINVAL; 20295bbd2e59SKevin Wolf } 20305bbd2e59SKevin Wolf 2031a8003ec4SAlberto Garcia if (!writethrough != blk_enable_write_cache(blk) && 203219dbecdcSKevin Wolf blk_get_attached_dev(blk)) 203319dbecdcSKevin Wolf { 203419dbecdcSKevin Wolf error_report("Cannot change cache.writeback: Device attached"); 203519dbecdcSKevin Wolf qemu_opts_reset(&reopen_opts); 2036b32d7a39SMax Reitz return -EBUSY; 203719dbecdcSKevin Wolf } 203819dbecdcSKevin Wolf 2039f3adefb2SKevin Wolf if (!(flags & BDRV_O_RDWR)) { 2040f3adefb2SKevin Wolf uint64_t orig_perm, orig_shared_perm; 2041f3adefb2SKevin Wolf 2042f3adefb2SKevin Wolf bdrv_drain(bs); 2043f3adefb2SKevin Wolf 2044f3adefb2SKevin Wolf blk_get_perm(blk, &orig_perm, &orig_shared_perm); 2045f3adefb2SKevin Wolf blk_set_perm(blk, 2046f3adefb2SKevin Wolf orig_perm & ~(BLK_PERM_WRITE | BLK_PERM_WRITE_UNCHANGED), 2047f3adefb2SKevin Wolf orig_shared_perm, 2048f3adefb2SKevin Wolf &error_abort); 2049f3adefb2SKevin Wolf } 2050f3adefb2SKevin Wolf 20515bbd2e59SKevin Wolf qopts = qemu_opts_find(&reopen_opts, NULL); 2052dc900c35SAlberto Garcia opts = qopts ? qemu_opts_to_qdict(qopts, NULL) : qdict_new(); 20535bbd2e59SKevin Wolf qemu_opts_reset(&reopen_opts); 20545bbd2e59SKevin Wolf 2055dc900c35SAlberto Garcia if (qdict_haskey(opts, BDRV_OPT_READ_ONLY)) { 2056dc900c35SAlberto Garcia if (has_rw_option) { 2057dc900c35SAlberto Garcia error_report("Cannot set both -r/-w and '" BDRV_OPT_READ_ONLY "'"); 2058dc900c35SAlberto Garcia qobject_unref(opts); 2059dc900c35SAlberto Garcia return -EINVAL; 2060dc900c35SAlberto Garcia } 2061dc900c35SAlberto Garcia } else { 2062dc900c35SAlberto Garcia qdict_put_bool(opts, BDRV_OPT_READ_ONLY, !(flags & BDRV_O_RDWR)); 2063dc900c35SAlberto Garcia } 2064dc900c35SAlberto Garcia 2065dc900c35SAlberto Garcia if (qdict_haskey(opts, BDRV_OPT_CACHE_DIRECT) || 2066dc900c35SAlberto Garcia qdict_haskey(opts, BDRV_OPT_CACHE_NO_FLUSH)) { 2067dc900c35SAlberto Garcia if (has_cache_option) { 2068dc900c35SAlberto Garcia error_report("Cannot set both -c and the cache options"); 2069dc900c35SAlberto Garcia qobject_unref(opts); 2070dc900c35SAlberto Garcia return -EINVAL; 2071dc900c35SAlberto Garcia } 2072dc900c35SAlberto Garcia } else { 2073dc900c35SAlberto Garcia qdict_put_bool(opts, BDRV_OPT_CACHE_DIRECT, flags & BDRV_O_NOCACHE); 2074dc900c35SAlberto Garcia qdict_put_bool(opts, BDRV_OPT_CACHE_NO_FLUSH, flags & BDRV_O_NO_FLUSH); 2075dc900c35SAlberto Garcia } 2076dc900c35SAlberto Garcia 20771a63a907SKevin Wolf bdrv_subtree_drained_begin(bs); 20782e891722SAlberto Garcia brq = bdrv_reopen_queue(NULL, bs, opts); 2079720150f3SPaolo Bonzini bdrv_reopen_multiple(bdrv_get_aio_context(bs), brq, &local_err); 20801a63a907SKevin Wolf bdrv_subtree_drained_end(bs); 20811a63a907SKevin Wolf 20825bbd2e59SKevin Wolf if (local_err) { 20835bbd2e59SKevin Wolf error_report_err(local_err); 2084b32d7a39SMax Reitz return -EINVAL; 20855bbd2e59SKevin Wolf } 20865bbd2e59SKevin Wolf 2087b32d7a39SMax Reitz blk_set_enable_write_cache(blk, !writethrough); 2088b32d7a39SMax Reitz return 0; 2089b32d7a39SMax Reitz } 2090b32d7a39SMax Reitz 2091b32d7a39SMax Reitz static int break_f(BlockBackend *blk, int argc, char **argv) 2092797ac58cSKevin Wolf { 2093797ac58cSKevin Wolf int ret; 2094797ac58cSKevin Wolf 20954c7b7e9bSMax Reitz ret = bdrv_debug_breakpoint(blk_bs(blk), argv[1], argv[2]); 2096797ac58cSKevin Wolf if (ret < 0) { 2097797ac58cSKevin Wolf printf("Could not set breakpoint: %s\n", strerror(-ret)); 2098b32d7a39SMax Reitz return ret; 2099797ac58cSKevin Wolf } 2100797ac58cSKevin Wolf 2101b32d7a39SMax Reitz return 0; 2102b32d7a39SMax Reitz } 2103b32d7a39SMax Reitz 2104b32d7a39SMax Reitz static int remove_break_f(BlockBackend *blk, int argc, char **argv) 21054cc70e93SFam Zheng { 21064cc70e93SFam Zheng int ret; 21074cc70e93SFam Zheng 21084c7b7e9bSMax Reitz ret = bdrv_debug_remove_breakpoint(blk_bs(blk), argv[1]); 21094cc70e93SFam Zheng if (ret < 0) { 21104cc70e93SFam Zheng printf("Could not remove breakpoint %s: %s\n", argv[1], strerror(-ret)); 2111b32d7a39SMax Reitz return ret; 21124cc70e93SFam Zheng } 2113b32d7a39SMax Reitz 2114b32d7a39SMax Reitz return 0; 21154cc70e93SFam Zheng } 21164cc70e93SFam Zheng 2117797ac58cSKevin Wolf static const cmdinfo_t break_cmd = { 2118797ac58cSKevin Wolf .name = "break", 2119797ac58cSKevin Wolf .argmin = 2, 2120797ac58cSKevin Wolf .argmax = 2, 2121797ac58cSKevin Wolf .cfunc = break_f, 2122797ac58cSKevin Wolf .args = "event tag", 2123797ac58cSKevin Wolf .oneline = "sets a breakpoint on event and tags the stopped " 2124797ac58cSKevin Wolf "request as tag", 2125797ac58cSKevin Wolf }; 2126797ac58cSKevin Wolf 21274cc70e93SFam Zheng static const cmdinfo_t remove_break_cmd = { 21284cc70e93SFam Zheng .name = "remove_break", 21294cc70e93SFam Zheng .argmin = 1, 21304cc70e93SFam Zheng .argmax = 1, 21314cc70e93SFam Zheng .cfunc = remove_break_f, 21324cc70e93SFam Zheng .args = "tag", 21334cc70e93SFam Zheng .oneline = "remove a breakpoint by tag", 21344cc70e93SFam Zheng }; 21354cc70e93SFam Zheng 2136b32d7a39SMax Reitz static int resume_f(BlockBackend *blk, int argc, char **argv) 2137797ac58cSKevin Wolf { 2138797ac58cSKevin Wolf int ret; 2139797ac58cSKevin Wolf 21404c7b7e9bSMax Reitz ret = bdrv_debug_resume(blk_bs(blk), argv[1]); 2141797ac58cSKevin Wolf if (ret < 0) { 2142797ac58cSKevin Wolf printf("Could not resume request: %s\n", strerror(-ret)); 2143b32d7a39SMax Reitz return ret; 2144797ac58cSKevin Wolf } 2145b32d7a39SMax Reitz 2146b32d7a39SMax Reitz return 0; 2147797ac58cSKevin Wolf } 2148797ac58cSKevin Wolf 2149797ac58cSKevin Wolf static const cmdinfo_t resume_cmd = { 2150797ac58cSKevin Wolf .name = "resume", 2151797ac58cSKevin Wolf .argmin = 1, 2152797ac58cSKevin Wolf .argmax = 1, 2153797ac58cSKevin Wolf .cfunc = resume_f, 2154797ac58cSKevin Wolf .args = "tag", 2155797ac58cSKevin Wolf .oneline = "resumes the request tagged as tag", 2156797ac58cSKevin Wolf }; 2157797ac58cSKevin Wolf 2158b32d7a39SMax Reitz static int wait_break_f(BlockBackend *blk, int argc, char **argv) 2159797ac58cSKevin Wolf { 21604c7b7e9bSMax Reitz while (!bdrv_debug_is_suspended(blk_bs(blk), argv[1])) { 21614c7b7e9bSMax Reitz aio_poll(blk_get_aio_context(blk), true); 2162797ac58cSKevin Wolf } 2163b32d7a39SMax Reitz return 0; 2164797ac58cSKevin Wolf } 2165797ac58cSKevin Wolf 2166797ac58cSKevin Wolf static const cmdinfo_t wait_break_cmd = { 2167797ac58cSKevin Wolf .name = "wait_break", 2168797ac58cSKevin Wolf .argmin = 1, 2169797ac58cSKevin Wolf .argmax = 1, 2170797ac58cSKevin Wolf .cfunc = wait_break_f, 2171797ac58cSKevin Wolf .args = "tag", 2172797ac58cSKevin Wolf .oneline = "waits for the suspension of a request", 2173797ac58cSKevin Wolf }; 2174797ac58cSKevin Wolf 2175b32d7a39SMax Reitz static int abort_f(BlockBackend *blk, int argc, char **argv) 2176797ac58cSKevin Wolf { 2177797ac58cSKevin Wolf abort(); 2178797ac58cSKevin Wolf } 2179797ac58cSKevin Wolf 2180797ac58cSKevin Wolf static const cmdinfo_t abort_cmd = { 2181797ac58cSKevin Wolf .name = "abort", 2182797ac58cSKevin Wolf .cfunc = abort_f, 2183797ac58cSKevin Wolf .flags = CMD_NOFILE_OK, 2184797ac58cSKevin Wolf .oneline = "simulate a program crash using abort(3)", 2185797ac58cSKevin Wolf }; 2186797ac58cSKevin Wolf 21870e82dc7bSMax Reitz static void sigraise_help(void) 21880e82dc7bSMax Reitz { 21890e82dc7bSMax Reitz printf( 21900e82dc7bSMax Reitz "\n" 21910e82dc7bSMax Reitz " raises the given signal\n" 21920e82dc7bSMax Reitz "\n" 21930e82dc7bSMax Reitz " Example:\n" 21940e82dc7bSMax Reitz " 'sigraise %i' - raises SIGTERM\n" 21950e82dc7bSMax Reitz "\n" 21960e82dc7bSMax Reitz " Invokes raise(signal), where \"signal\" is the mandatory integer argument\n" 21970e82dc7bSMax Reitz " given to sigraise.\n" 21980e82dc7bSMax Reitz "\n", SIGTERM); 21990e82dc7bSMax Reitz } 22000e82dc7bSMax Reitz 2201b32d7a39SMax Reitz static int sigraise_f(BlockBackend *blk, int argc, char **argv); 22020e82dc7bSMax Reitz 22030e82dc7bSMax Reitz static const cmdinfo_t sigraise_cmd = { 22040e82dc7bSMax Reitz .name = "sigraise", 22050e82dc7bSMax Reitz .cfunc = sigraise_f, 22060e82dc7bSMax Reitz .argmin = 1, 22070e82dc7bSMax Reitz .argmax = 1, 22080e82dc7bSMax Reitz .flags = CMD_NOFILE_OK, 22090e82dc7bSMax Reitz .args = "signal", 22100e82dc7bSMax Reitz .oneline = "raises a signal", 22110e82dc7bSMax Reitz .help = sigraise_help, 22120e82dc7bSMax Reitz }; 22130e82dc7bSMax Reitz 2214b32d7a39SMax Reitz static int sigraise_f(BlockBackend *blk, int argc, char **argv) 22150e82dc7bSMax Reitz { 22169b0beaf3SJohn Snow int64_t sig = cvtnum(argv[1]); 22170e82dc7bSMax Reitz if (sig < 0) { 2218a9ecfa00SJohn Snow print_cvtnum_err(sig, argv[1]); 2219b32d7a39SMax Reitz return sig; 22209b0beaf3SJohn Snow } else if (sig > NSIG) { 22219b0beaf3SJohn Snow printf("signal argument '%s' is too large to be a valid signal\n", 22229b0beaf3SJohn Snow argv[1]); 2223b32d7a39SMax Reitz return -EINVAL; 22240e82dc7bSMax Reitz } 22250e82dc7bSMax Reitz 22260e82dc7bSMax Reitz /* Using raise() to kill this process does not necessarily flush all open 22270e82dc7bSMax Reitz * streams. At least stdout and stderr (although the latter should be 22280e82dc7bSMax Reitz * non-buffered anyway) should be flushed, though. */ 22290e82dc7bSMax Reitz fflush(stdout); 22300e82dc7bSMax Reitz fflush(stderr); 22310e82dc7bSMax Reitz 22320e82dc7bSMax Reitz raise(sig); 2233b32d7a39SMax Reitz 2234b32d7a39SMax Reitz return 0; 22350e82dc7bSMax Reitz } 22360e82dc7bSMax Reitz 2237cd33d02aSKevin Wolf static void sleep_cb(void *opaque) 2238cd33d02aSKevin Wolf { 2239cd33d02aSKevin Wolf bool *expired = opaque; 2240cd33d02aSKevin Wolf *expired = true; 2241cd33d02aSKevin Wolf } 2242cd33d02aSKevin Wolf 2243b32d7a39SMax Reitz static int sleep_f(BlockBackend *blk, int argc, char **argv) 2244cd33d02aSKevin Wolf { 2245cd33d02aSKevin Wolf char *endptr; 2246cd33d02aSKevin Wolf long ms; 2247cd33d02aSKevin Wolf struct QEMUTimer *timer; 2248cd33d02aSKevin Wolf bool expired = false; 2249cd33d02aSKevin Wolf 2250cd33d02aSKevin Wolf ms = strtol(argv[1], &endptr, 0); 2251cd33d02aSKevin Wolf if (ms < 0 || *endptr != '\0') { 2252cd33d02aSKevin Wolf printf("%s is not a valid number\n", argv[1]); 2253b32d7a39SMax Reitz return -EINVAL; 2254cd33d02aSKevin Wolf } 2255cd33d02aSKevin Wolf 2256cd33d02aSKevin Wolf timer = timer_new_ns(QEMU_CLOCK_HOST, sleep_cb, &expired); 2257cd33d02aSKevin Wolf timer_mod(timer, qemu_clock_get_ns(QEMU_CLOCK_HOST) + SCALE_MS * ms); 2258cd33d02aSKevin Wolf 2259cd33d02aSKevin Wolf while (!expired) { 2260cd33d02aSKevin Wolf main_loop_wait(false); 2261cd33d02aSKevin Wolf } 2262cd33d02aSKevin Wolf 2263cd33d02aSKevin Wolf timer_free(timer); 2264b32d7a39SMax Reitz return 0; 2265cd33d02aSKevin Wolf } 2266cd33d02aSKevin Wolf 2267cd33d02aSKevin Wolf static const cmdinfo_t sleep_cmd = { 2268cd33d02aSKevin Wolf .name = "sleep", 2269cd33d02aSKevin Wolf .argmin = 1, 2270cd33d02aSKevin Wolf .argmax = 1, 2271cd33d02aSKevin Wolf .cfunc = sleep_f, 2272cd33d02aSKevin Wolf .flags = CMD_NOFILE_OK, 2273cd33d02aSKevin Wolf .oneline = "waits for the given value in milliseconds", 2274cd33d02aSKevin Wolf }; 2275cd33d02aSKevin Wolf 2276f18a834aSKevin Wolf static void help_oneline(const char *cmd, const cmdinfo_t *ct) 2277f18a834aSKevin Wolf { 2278f18a834aSKevin Wolf if (cmd) { 2279f18a834aSKevin Wolf printf("%s ", cmd); 2280f18a834aSKevin Wolf } else { 2281f18a834aSKevin Wolf printf("%s ", ct->name); 2282f18a834aSKevin Wolf if (ct->altname) { 2283f18a834aSKevin Wolf printf("(or %s) ", ct->altname); 2284f18a834aSKevin Wolf } 2285f18a834aSKevin Wolf } 2286f18a834aSKevin Wolf 2287f18a834aSKevin Wolf if (ct->args) { 2288f18a834aSKevin Wolf printf("%s ", ct->args); 2289f18a834aSKevin Wolf } 2290f18a834aSKevin Wolf printf("-- %s\n", ct->oneline); 2291f18a834aSKevin Wolf } 2292f18a834aSKevin Wolf 2293f18a834aSKevin Wolf static void help_onecmd(const char *cmd, const cmdinfo_t *ct) 2294f18a834aSKevin Wolf { 2295f18a834aSKevin Wolf help_oneline(cmd, ct); 2296f18a834aSKevin Wolf if (ct->help) { 2297f18a834aSKevin Wolf ct->help(); 2298f18a834aSKevin Wolf } 2299f18a834aSKevin Wolf } 2300f18a834aSKevin Wolf 2301f18a834aSKevin Wolf static void help_all(void) 2302f18a834aSKevin Wolf { 2303f18a834aSKevin Wolf const cmdinfo_t *ct; 2304f18a834aSKevin Wolf 2305f18a834aSKevin Wolf for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { 2306f18a834aSKevin Wolf help_oneline(ct->name, ct); 2307f18a834aSKevin Wolf } 2308f18a834aSKevin Wolf printf("\nUse 'help commandname' for extended help.\n"); 2309f18a834aSKevin Wolf } 2310f18a834aSKevin Wolf 2311b32d7a39SMax Reitz static int help_f(BlockBackend *blk, int argc, char **argv) 2312f18a834aSKevin Wolf { 2313f18a834aSKevin Wolf const cmdinfo_t *ct; 2314f18a834aSKevin Wolf 2315f18a834aSKevin Wolf if (argc == 1) { 2316f18a834aSKevin Wolf help_all(); 2317b32d7a39SMax Reitz return 0; 2318f18a834aSKevin Wolf } 2319f18a834aSKevin Wolf 2320f18a834aSKevin Wolf ct = find_command(argv[1]); 2321f18a834aSKevin Wolf if (ct == NULL) { 2322f18a834aSKevin Wolf printf("command %s not found\n", argv[1]); 2323b32d7a39SMax Reitz return -EINVAL; 2324f18a834aSKevin Wolf } 2325f18a834aSKevin Wolf 2326f18a834aSKevin Wolf help_onecmd(argv[1], ct); 2327b32d7a39SMax Reitz return 0; 2328f18a834aSKevin Wolf } 2329f18a834aSKevin Wolf 2330f18a834aSKevin Wolf static const cmdinfo_t help_cmd = { 2331f18a834aSKevin Wolf .name = "help", 2332f18a834aSKevin Wolf .altname = "?", 2333f18a834aSKevin Wolf .cfunc = help_f, 2334f18a834aSKevin Wolf .argmin = 0, 2335f18a834aSKevin Wolf .argmax = 1, 2336f18a834aSKevin Wolf .flags = CMD_FLAG_GLOBAL, 2337f18a834aSKevin Wolf .args = "[command]", 2338f18a834aSKevin Wolf .oneline = "help for one or all commands", 2339f18a834aSKevin Wolf }; 2340f18a834aSKevin Wolf 2341b32d7a39SMax Reitz int qemuio_command(BlockBackend *blk, const char *cmd) 2342dd583296SKevin Wolf { 234315afd94aSPaolo Bonzini AioContext *ctx; 2344dd583296SKevin Wolf char *input; 2345dd583296SKevin Wolf const cmdinfo_t *ct; 2346dd583296SKevin Wolf char **v; 2347dd583296SKevin Wolf int c; 2348b32d7a39SMax Reitz int ret = 0; 2349dd583296SKevin Wolf 2350dd583296SKevin Wolf input = g_strdup(cmd); 2351dd583296SKevin Wolf v = breakline(input, &c); 2352dd583296SKevin Wolf if (c) { 2353dd583296SKevin Wolf ct = find_command(v[0]); 2354dd583296SKevin Wolf if (ct) { 235515afd94aSPaolo Bonzini ctx = blk ? blk_get_aio_context(blk) : qemu_get_aio_context(); 235615afd94aSPaolo Bonzini aio_context_acquire(ctx); 2357b32d7a39SMax Reitz ret = command(blk, ct, c, v); 235815afd94aSPaolo Bonzini aio_context_release(ctx); 2359dd583296SKevin Wolf } else { 2360dd583296SKevin Wolf fprintf(stderr, "command \"%s\" not found\n", v[0]); 2361b32d7a39SMax Reitz ret = -EINVAL; 2362dd583296SKevin Wolf } 2363dd583296SKevin Wolf } 2364dd583296SKevin Wolf g_free(input); 2365dd583296SKevin Wolf g_free(v); 2366b32d7a39SMax Reitz 2367b32d7a39SMax Reitz return ret; 2368dd583296SKevin Wolf } 2369dd583296SKevin Wolf 2370797ac58cSKevin Wolf static void __attribute((constructor)) init_qemuio_commands(void) 2371797ac58cSKevin Wolf { 2372797ac58cSKevin Wolf /* initialize commands */ 2373c2cdf5c5SKevin Wolf qemuio_add_command(&help_cmd); 2374c2cdf5c5SKevin Wolf qemuio_add_command(&read_cmd); 2375c2cdf5c5SKevin Wolf qemuio_add_command(&readv_cmd); 2376c2cdf5c5SKevin Wolf qemuio_add_command(&write_cmd); 2377c2cdf5c5SKevin Wolf qemuio_add_command(&writev_cmd); 2378c2cdf5c5SKevin Wolf qemuio_add_command(&aio_read_cmd); 2379c2cdf5c5SKevin Wolf qemuio_add_command(&aio_write_cmd); 2380c2cdf5c5SKevin Wolf qemuio_add_command(&aio_flush_cmd); 2381c2cdf5c5SKevin Wolf qemuio_add_command(&flush_cmd); 2382c2cdf5c5SKevin Wolf qemuio_add_command(&truncate_cmd); 2383c2cdf5c5SKevin Wolf qemuio_add_command(&length_cmd); 2384c2cdf5c5SKevin Wolf qemuio_add_command(&info_cmd); 2385c2cdf5c5SKevin Wolf qemuio_add_command(&discard_cmd); 2386c2cdf5c5SKevin Wolf qemuio_add_command(&alloc_cmd); 2387c2cdf5c5SKevin Wolf qemuio_add_command(&map_cmd); 23885bbd2e59SKevin Wolf qemuio_add_command(&reopen_cmd); 2389c2cdf5c5SKevin Wolf qemuio_add_command(&break_cmd); 23904cc70e93SFam Zheng qemuio_add_command(&remove_break_cmd); 2391c2cdf5c5SKevin Wolf qemuio_add_command(&resume_cmd); 2392c2cdf5c5SKevin Wolf qemuio_add_command(&wait_break_cmd); 2393c2cdf5c5SKevin Wolf qemuio_add_command(&abort_cmd); 2394cd33d02aSKevin Wolf qemuio_add_command(&sleep_cmd); 23950e82dc7bSMax Reitz qemuio_add_command(&sigraise_cmd); 2396797ac58cSKevin Wolf } 2397