1 /* 2 * Block layer qmp and info dump related functions 3 * 4 * Copyright (c) 2003-2008 Fabrice Bellard 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to deal 8 * in the Software without restriction, including without limitation the rights 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 * copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22 * THE SOFTWARE. 23 */ 24 25 #include "qemu/osdep.h" 26 #include "block/qapi.h" 27 #include "block/block_int.h" 28 #include "block/throttle-groups.h" 29 #include "block/write-threshold.h" 30 #include "qmp-commands.h" 31 #include "qapi-visit.h" 32 #include "qapi/qmp-output-visitor.h" 33 #include "qapi/qmp/types.h" 34 #include "sysemu/block-backend.h" 35 36 BlockDeviceInfo *bdrv_block_device_info(BlockDriverState *bs, Error **errp) 37 { 38 ImageInfo **p_image_info; 39 BlockDriverState *bs0; 40 BlockDeviceInfo *info = g_malloc0(sizeof(*info)); 41 42 info->file = g_strdup(bs->filename); 43 info->ro = bs->read_only; 44 info->drv = g_strdup(bs->drv->format_name); 45 info->encrypted = bs->encrypted; 46 info->encryption_key_missing = bdrv_key_required(bs); 47 48 info->cache = g_new(BlockdevCacheInfo, 1); 49 *info->cache = (BlockdevCacheInfo) { 50 .writeback = bdrv_enable_write_cache(bs), 51 .direct = !!(bs->open_flags & BDRV_O_NOCACHE), 52 .no_flush = !!(bs->open_flags & BDRV_O_NO_FLUSH), 53 }; 54 55 if (bs->node_name[0]) { 56 info->has_node_name = true; 57 info->node_name = g_strdup(bs->node_name); 58 } 59 60 if (bs->backing_file[0]) { 61 info->has_backing_file = true; 62 info->backing_file = g_strdup(bs->backing_file); 63 } 64 65 info->backing_file_depth = bdrv_get_backing_file_depth(bs); 66 info->detect_zeroes = bs->detect_zeroes; 67 68 if (bs->throttle_state) { 69 ThrottleConfig cfg; 70 71 throttle_group_get_config(bs, &cfg); 72 73 info->bps = cfg.buckets[THROTTLE_BPS_TOTAL].avg; 74 info->bps_rd = cfg.buckets[THROTTLE_BPS_READ].avg; 75 info->bps_wr = cfg.buckets[THROTTLE_BPS_WRITE].avg; 76 77 info->iops = cfg.buckets[THROTTLE_OPS_TOTAL].avg; 78 info->iops_rd = cfg.buckets[THROTTLE_OPS_READ].avg; 79 info->iops_wr = cfg.buckets[THROTTLE_OPS_WRITE].avg; 80 81 info->has_bps_max = cfg.buckets[THROTTLE_BPS_TOTAL].max; 82 info->bps_max = cfg.buckets[THROTTLE_BPS_TOTAL].max; 83 info->has_bps_rd_max = cfg.buckets[THROTTLE_BPS_READ].max; 84 info->bps_rd_max = cfg.buckets[THROTTLE_BPS_READ].max; 85 info->has_bps_wr_max = cfg.buckets[THROTTLE_BPS_WRITE].max; 86 info->bps_wr_max = cfg.buckets[THROTTLE_BPS_WRITE].max; 87 88 info->has_iops_max = cfg.buckets[THROTTLE_OPS_TOTAL].max; 89 info->iops_max = cfg.buckets[THROTTLE_OPS_TOTAL].max; 90 info->has_iops_rd_max = cfg.buckets[THROTTLE_OPS_READ].max; 91 info->iops_rd_max = cfg.buckets[THROTTLE_OPS_READ].max; 92 info->has_iops_wr_max = cfg.buckets[THROTTLE_OPS_WRITE].max; 93 info->iops_wr_max = cfg.buckets[THROTTLE_OPS_WRITE].max; 94 95 info->has_iops_size = cfg.op_size; 96 info->iops_size = cfg.op_size; 97 98 info->has_group = true; 99 info->group = g_strdup(throttle_group_get_name(bs)); 100 } 101 102 info->write_threshold = bdrv_write_threshold_get(bs); 103 104 bs0 = bs; 105 p_image_info = &info->image; 106 while (1) { 107 Error *local_err = NULL; 108 bdrv_query_image_info(bs0, p_image_info, &local_err); 109 if (local_err) { 110 error_propagate(errp, local_err); 111 qapi_free_BlockDeviceInfo(info); 112 return NULL; 113 } 114 if (bs0->drv && bs0->backing) { 115 bs0 = bs0->backing->bs; 116 (*p_image_info)->has_backing_image = true; 117 p_image_info = &((*p_image_info)->backing_image); 118 } else { 119 break; 120 } 121 } 122 123 return info; 124 } 125 126 /* 127 * Returns 0 on success, with *p_list either set to describe snapshot 128 * information, or NULL because there are no snapshots. Returns -errno on 129 * error, with *p_list untouched. 130 */ 131 int bdrv_query_snapshot_info_list(BlockDriverState *bs, 132 SnapshotInfoList **p_list, 133 Error **errp) 134 { 135 int i, sn_count; 136 QEMUSnapshotInfo *sn_tab = NULL; 137 SnapshotInfoList *info_list, *cur_item = NULL, *head = NULL; 138 SnapshotInfo *info; 139 140 sn_count = bdrv_snapshot_list(bs, &sn_tab); 141 if (sn_count < 0) { 142 const char *dev = bdrv_get_device_name(bs); 143 switch (sn_count) { 144 case -ENOMEDIUM: 145 error_setg(errp, "Device '%s' is not inserted", dev); 146 break; 147 case -ENOTSUP: 148 error_setg(errp, 149 "Device '%s' does not support internal snapshots", 150 dev); 151 break; 152 default: 153 error_setg_errno(errp, -sn_count, 154 "Can't list snapshots of device '%s'", dev); 155 break; 156 } 157 return sn_count; 158 } 159 160 for (i = 0; i < sn_count; i++) { 161 info = g_new0(SnapshotInfo, 1); 162 info->id = g_strdup(sn_tab[i].id_str); 163 info->name = g_strdup(sn_tab[i].name); 164 info->vm_state_size = sn_tab[i].vm_state_size; 165 info->date_sec = sn_tab[i].date_sec; 166 info->date_nsec = sn_tab[i].date_nsec; 167 info->vm_clock_sec = sn_tab[i].vm_clock_nsec / 1000000000; 168 info->vm_clock_nsec = sn_tab[i].vm_clock_nsec % 1000000000; 169 170 info_list = g_new0(SnapshotInfoList, 1); 171 info_list->value = info; 172 173 /* XXX: waiting for the qapi to support qemu-queue.h types */ 174 if (!cur_item) { 175 head = cur_item = info_list; 176 } else { 177 cur_item->next = info_list; 178 cur_item = info_list; 179 } 180 181 } 182 183 g_free(sn_tab); 184 *p_list = head; 185 return 0; 186 } 187 188 /** 189 * bdrv_query_image_info: 190 * @bs: block device to examine 191 * @p_info: location to store image information 192 * @errp: location to store error information 193 * 194 * Store "flat" image information in @p_info. 195 * 196 * "Flat" means it does *not* query backing image information, 197 * i.e. (*pinfo)->has_backing_image will be set to false and 198 * (*pinfo)->backing_image to NULL even when the image does in fact have 199 * a backing image. 200 * 201 * @p_info will be set only on success. On error, store error in @errp. 202 */ 203 void bdrv_query_image_info(BlockDriverState *bs, 204 ImageInfo **p_info, 205 Error **errp) 206 { 207 int64_t size; 208 const char *backing_filename; 209 BlockDriverInfo bdi; 210 int ret; 211 Error *err = NULL; 212 ImageInfo *info; 213 214 aio_context_acquire(bdrv_get_aio_context(bs)); 215 216 size = bdrv_getlength(bs); 217 if (size < 0) { 218 error_setg_errno(errp, -size, "Can't get size of device '%s'", 219 bdrv_get_device_name(bs)); 220 goto out; 221 } 222 223 info = g_new0(ImageInfo, 1); 224 info->filename = g_strdup(bs->filename); 225 info->format = g_strdup(bdrv_get_format_name(bs)); 226 info->virtual_size = size; 227 info->actual_size = bdrv_get_allocated_file_size(bs); 228 info->has_actual_size = info->actual_size >= 0; 229 if (bdrv_is_encrypted(bs)) { 230 info->encrypted = true; 231 info->has_encrypted = true; 232 } 233 if (bdrv_get_info(bs, &bdi) >= 0) { 234 if (bdi.cluster_size != 0) { 235 info->cluster_size = bdi.cluster_size; 236 info->has_cluster_size = true; 237 } 238 info->dirty_flag = bdi.is_dirty; 239 info->has_dirty_flag = true; 240 } 241 info->format_specific = bdrv_get_specific_info(bs); 242 info->has_format_specific = info->format_specific != NULL; 243 244 backing_filename = bs->backing_file; 245 if (backing_filename[0] != '\0') { 246 char *backing_filename2 = g_malloc0(PATH_MAX); 247 info->backing_filename = g_strdup(backing_filename); 248 info->has_backing_filename = true; 249 bdrv_get_full_backing_filename(bs, backing_filename2, PATH_MAX, &err); 250 if (err) { 251 /* Can't reconstruct the full backing filename, so we must omit 252 * this field and apply a Best Effort to this query. */ 253 g_free(backing_filename2); 254 backing_filename2 = NULL; 255 error_free(err); 256 err = NULL; 257 } 258 259 /* Always report the full_backing_filename if present, even if it's the 260 * same as backing_filename. That they are same is useful info. */ 261 if (backing_filename2) { 262 info->full_backing_filename = g_strdup(backing_filename2); 263 info->has_full_backing_filename = true; 264 } 265 266 if (bs->backing_format[0]) { 267 info->backing_filename_format = g_strdup(bs->backing_format); 268 info->has_backing_filename_format = true; 269 } 270 g_free(backing_filename2); 271 } 272 273 ret = bdrv_query_snapshot_info_list(bs, &info->snapshots, &err); 274 switch (ret) { 275 case 0: 276 if (info->snapshots) { 277 info->has_snapshots = true; 278 } 279 break; 280 /* recoverable error */ 281 case -ENOMEDIUM: 282 case -ENOTSUP: 283 error_free(err); 284 break; 285 default: 286 error_propagate(errp, err); 287 qapi_free_ImageInfo(info); 288 goto out; 289 } 290 291 *p_info = info; 292 293 out: 294 aio_context_release(bdrv_get_aio_context(bs)); 295 } 296 297 /* @p_info will be set only on success. */ 298 static void bdrv_query_info(BlockBackend *blk, BlockInfo **p_info, 299 Error **errp) 300 { 301 BlockInfo *info = g_malloc0(sizeof(*info)); 302 BlockDriverState *bs = blk_bs(blk); 303 info->device = g_strdup(blk_name(blk)); 304 info->type = g_strdup("unknown"); 305 info->locked = blk_dev_is_medium_locked(blk); 306 info->removable = blk_dev_has_removable_media(blk); 307 308 if (blk_dev_has_tray(blk)) { 309 info->has_tray_open = true; 310 info->tray_open = blk_dev_is_tray_open(blk); 311 } 312 313 if (blk_iostatus_is_enabled(blk)) { 314 info->has_io_status = true; 315 info->io_status = blk_iostatus(blk); 316 } 317 318 if (bs && !QLIST_EMPTY(&bs->dirty_bitmaps)) { 319 info->has_dirty_bitmaps = true; 320 info->dirty_bitmaps = bdrv_query_dirty_bitmaps(bs); 321 } 322 323 if (bs && bs->drv) { 324 info->has_inserted = true; 325 info->inserted = bdrv_block_device_info(bs, errp); 326 if (info->inserted == NULL) { 327 goto err; 328 } 329 } 330 331 *p_info = info; 332 return; 333 334 err: 335 qapi_free_BlockInfo(info); 336 } 337 338 static BlockStats *bdrv_query_stats(const BlockDriverState *bs, 339 bool query_backing) 340 { 341 BlockStats *s; 342 343 s = g_malloc0(sizeof(*s)); 344 345 if (bdrv_get_device_name(bs)[0]) { 346 s->has_device = true; 347 s->device = g_strdup(bdrv_get_device_name(bs)); 348 } 349 350 if (bdrv_get_node_name(bs)[0]) { 351 s->has_node_name = true; 352 s->node_name = g_strdup(bdrv_get_node_name(bs)); 353 } 354 355 s->stats = g_malloc0(sizeof(*s->stats)); 356 if (bs->blk) { 357 BlockAcctStats *stats = blk_get_stats(bs->blk); 358 BlockAcctTimedStats *ts = NULL; 359 360 s->stats->rd_bytes = stats->nr_bytes[BLOCK_ACCT_READ]; 361 s->stats->wr_bytes = stats->nr_bytes[BLOCK_ACCT_WRITE]; 362 s->stats->rd_operations = stats->nr_ops[BLOCK_ACCT_READ]; 363 s->stats->wr_operations = stats->nr_ops[BLOCK_ACCT_WRITE]; 364 365 s->stats->failed_rd_operations = stats->failed_ops[BLOCK_ACCT_READ]; 366 s->stats->failed_wr_operations = stats->failed_ops[BLOCK_ACCT_WRITE]; 367 s->stats->failed_flush_operations = stats->failed_ops[BLOCK_ACCT_FLUSH]; 368 369 s->stats->invalid_rd_operations = stats->invalid_ops[BLOCK_ACCT_READ]; 370 s->stats->invalid_wr_operations = stats->invalid_ops[BLOCK_ACCT_WRITE]; 371 s->stats->invalid_flush_operations = 372 stats->invalid_ops[BLOCK_ACCT_FLUSH]; 373 374 s->stats->rd_merged = stats->merged[BLOCK_ACCT_READ]; 375 s->stats->wr_merged = stats->merged[BLOCK_ACCT_WRITE]; 376 s->stats->flush_operations = stats->nr_ops[BLOCK_ACCT_FLUSH]; 377 s->stats->wr_total_time_ns = stats->total_time_ns[BLOCK_ACCT_WRITE]; 378 s->stats->rd_total_time_ns = stats->total_time_ns[BLOCK_ACCT_READ]; 379 s->stats->flush_total_time_ns = stats->total_time_ns[BLOCK_ACCT_FLUSH]; 380 381 s->stats->has_idle_time_ns = stats->last_access_time_ns > 0; 382 if (s->stats->has_idle_time_ns) { 383 s->stats->idle_time_ns = block_acct_idle_time_ns(stats); 384 } 385 386 s->stats->account_invalid = stats->account_invalid; 387 s->stats->account_failed = stats->account_failed; 388 389 while ((ts = block_acct_interval_next(stats, ts))) { 390 BlockDeviceTimedStatsList *timed_stats = 391 g_malloc0(sizeof(*timed_stats)); 392 BlockDeviceTimedStats *dev_stats = g_malloc0(sizeof(*dev_stats)); 393 timed_stats->next = s->stats->timed_stats; 394 timed_stats->value = dev_stats; 395 s->stats->timed_stats = timed_stats; 396 397 TimedAverage *rd = &ts->latency[BLOCK_ACCT_READ]; 398 TimedAverage *wr = &ts->latency[BLOCK_ACCT_WRITE]; 399 TimedAverage *fl = &ts->latency[BLOCK_ACCT_FLUSH]; 400 401 dev_stats->interval_length = ts->interval_length; 402 403 dev_stats->min_rd_latency_ns = timed_average_min(rd); 404 dev_stats->max_rd_latency_ns = timed_average_max(rd); 405 dev_stats->avg_rd_latency_ns = timed_average_avg(rd); 406 407 dev_stats->min_wr_latency_ns = timed_average_min(wr); 408 dev_stats->max_wr_latency_ns = timed_average_max(wr); 409 dev_stats->avg_wr_latency_ns = timed_average_avg(wr); 410 411 dev_stats->min_flush_latency_ns = timed_average_min(fl); 412 dev_stats->max_flush_latency_ns = timed_average_max(fl); 413 dev_stats->avg_flush_latency_ns = timed_average_avg(fl); 414 415 dev_stats->avg_rd_queue_depth = 416 block_acct_queue_depth(ts, BLOCK_ACCT_READ); 417 dev_stats->avg_wr_queue_depth = 418 block_acct_queue_depth(ts, BLOCK_ACCT_WRITE); 419 } 420 } 421 422 s->stats->wr_highest_offset = bs->wr_highest_offset; 423 424 if (bs->file) { 425 s->has_parent = true; 426 s->parent = bdrv_query_stats(bs->file->bs, query_backing); 427 } 428 429 if (query_backing && bs->backing) { 430 s->has_backing = true; 431 s->backing = bdrv_query_stats(bs->backing->bs, query_backing); 432 } 433 434 return s; 435 } 436 437 BlockInfoList *qmp_query_block(Error **errp) 438 { 439 BlockInfoList *head = NULL, **p_next = &head; 440 BlockBackend *blk; 441 Error *local_err = NULL; 442 443 for (blk = blk_next(NULL); blk; blk = blk_next(blk)) { 444 BlockInfoList *info = g_malloc0(sizeof(*info)); 445 bdrv_query_info(blk, &info->value, &local_err); 446 if (local_err) { 447 error_propagate(errp, local_err); 448 g_free(info); 449 qapi_free_BlockInfoList(head); 450 return NULL; 451 } 452 453 *p_next = info; 454 p_next = &info->next; 455 } 456 457 return head; 458 } 459 460 BlockStatsList *qmp_query_blockstats(bool has_query_nodes, 461 bool query_nodes, 462 Error **errp) 463 { 464 BlockStatsList *head = NULL, **p_next = &head; 465 BlockDriverState *bs = NULL; 466 467 /* Just to be safe if query_nodes is not always initialized */ 468 query_nodes = has_query_nodes && query_nodes; 469 470 while ((bs = query_nodes ? bdrv_next_node(bs) : bdrv_next(bs))) { 471 BlockStatsList *info = g_malloc0(sizeof(*info)); 472 AioContext *ctx = bdrv_get_aio_context(bs); 473 474 aio_context_acquire(ctx); 475 info->value = bdrv_query_stats(bs, !query_nodes); 476 aio_context_release(ctx); 477 478 *p_next = info; 479 p_next = &info->next; 480 } 481 482 return head; 483 } 484 485 #define NB_SUFFIXES 4 486 487 static char *get_human_readable_size(char *buf, int buf_size, int64_t size) 488 { 489 static const char suffixes[NB_SUFFIXES] = {'K', 'M', 'G', 'T'}; 490 int64_t base; 491 int i; 492 493 if (size <= 999) { 494 snprintf(buf, buf_size, "%" PRId64, size); 495 } else { 496 base = 1024; 497 for (i = 0; i < NB_SUFFIXES; i++) { 498 if (size < (10 * base)) { 499 snprintf(buf, buf_size, "%0.1f%c", 500 (double)size / base, 501 suffixes[i]); 502 break; 503 } else if (size < (1000 * base) || i == (NB_SUFFIXES - 1)) { 504 snprintf(buf, buf_size, "%" PRId64 "%c", 505 ((size + (base >> 1)) / base), 506 suffixes[i]); 507 break; 508 } 509 base = base * 1024; 510 } 511 } 512 return buf; 513 } 514 515 void bdrv_snapshot_dump(fprintf_function func_fprintf, void *f, 516 QEMUSnapshotInfo *sn) 517 { 518 char buf1[128], date_buf[128], clock_buf[128]; 519 struct tm tm; 520 time_t ti; 521 int64_t secs; 522 523 if (!sn) { 524 func_fprintf(f, 525 "%-10s%-20s%7s%20s%15s", 526 "ID", "TAG", "VM SIZE", "DATE", "VM CLOCK"); 527 } else { 528 ti = sn->date_sec; 529 localtime_r(&ti, &tm); 530 strftime(date_buf, sizeof(date_buf), 531 "%Y-%m-%d %H:%M:%S", &tm); 532 secs = sn->vm_clock_nsec / 1000000000; 533 snprintf(clock_buf, sizeof(clock_buf), 534 "%02d:%02d:%02d.%03d", 535 (int)(secs / 3600), 536 (int)((secs / 60) % 60), 537 (int)(secs % 60), 538 (int)((sn->vm_clock_nsec / 1000000) % 1000)); 539 func_fprintf(f, 540 "%-10s%-20s%7s%20s%15s", 541 sn->id_str, sn->name, 542 get_human_readable_size(buf1, sizeof(buf1), 543 sn->vm_state_size), 544 date_buf, 545 clock_buf); 546 } 547 } 548 549 static void dump_qdict(fprintf_function func_fprintf, void *f, int indentation, 550 QDict *dict); 551 static void dump_qlist(fprintf_function func_fprintf, void *f, int indentation, 552 QList *list); 553 554 static void dump_qobject(fprintf_function func_fprintf, void *f, 555 int comp_indent, QObject *obj) 556 { 557 switch (qobject_type(obj)) { 558 case QTYPE_QINT: { 559 QInt *value = qobject_to_qint(obj); 560 func_fprintf(f, "%" PRId64, qint_get_int(value)); 561 break; 562 } 563 case QTYPE_QSTRING: { 564 QString *value = qobject_to_qstring(obj); 565 func_fprintf(f, "%s", qstring_get_str(value)); 566 break; 567 } 568 case QTYPE_QDICT: { 569 QDict *value = qobject_to_qdict(obj); 570 dump_qdict(func_fprintf, f, comp_indent, value); 571 break; 572 } 573 case QTYPE_QLIST: { 574 QList *value = qobject_to_qlist(obj); 575 dump_qlist(func_fprintf, f, comp_indent, value); 576 break; 577 } 578 case QTYPE_QFLOAT: { 579 QFloat *value = qobject_to_qfloat(obj); 580 func_fprintf(f, "%g", qfloat_get_double(value)); 581 break; 582 } 583 case QTYPE_QBOOL: { 584 QBool *value = qobject_to_qbool(obj); 585 func_fprintf(f, "%s", qbool_get_bool(value) ? "true" : "false"); 586 break; 587 } 588 default: 589 abort(); 590 } 591 } 592 593 static void dump_qlist(fprintf_function func_fprintf, void *f, int indentation, 594 QList *list) 595 { 596 const QListEntry *entry; 597 int i = 0; 598 599 for (entry = qlist_first(list); entry; entry = qlist_next(entry), i++) { 600 QType type = qobject_type(entry->value); 601 bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); 602 const char *format = composite ? "%*s[%i]:\n" : "%*s[%i]: "; 603 604 func_fprintf(f, format, indentation * 4, "", i); 605 dump_qobject(func_fprintf, f, indentation + 1, entry->value); 606 if (!composite) { 607 func_fprintf(f, "\n"); 608 } 609 } 610 } 611 612 static void dump_qdict(fprintf_function func_fprintf, void *f, int indentation, 613 QDict *dict) 614 { 615 const QDictEntry *entry; 616 617 for (entry = qdict_first(dict); entry; entry = qdict_next(dict, entry)) { 618 QType type = qobject_type(entry->value); 619 bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); 620 const char *format = composite ? "%*s%s:\n" : "%*s%s: "; 621 char key[strlen(entry->key) + 1]; 622 int i; 623 624 /* replace dashes with spaces in key (variable) names */ 625 for (i = 0; entry->key[i]; i++) { 626 key[i] = entry->key[i] == '-' ? ' ' : entry->key[i]; 627 } 628 key[i] = 0; 629 630 func_fprintf(f, format, indentation * 4, "", key); 631 dump_qobject(func_fprintf, f, indentation + 1, entry->value); 632 if (!composite) { 633 func_fprintf(f, "\n"); 634 } 635 } 636 } 637 638 void bdrv_image_info_specific_dump(fprintf_function func_fprintf, void *f, 639 ImageInfoSpecific *info_spec) 640 { 641 QmpOutputVisitor *ov = qmp_output_visitor_new(); 642 QObject *obj, *data; 643 644 visit_type_ImageInfoSpecific(qmp_output_get_visitor(ov), NULL, &info_spec, 645 &error_abort); 646 obj = qmp_output_get_qobject(ov); 647 assert(qobject_type(obj) == QTYPE_QDICT); 648 data = qdict_get(qobject_to_qdict(obj), "data"); 649 dump_qobject(func_fprintf, f, 1, data); 650 qmp_output_visitor_cleanup(ov); 651 } 652 653 void bdrv_image_info_dump(fprintf_function func_fprintf, void *f, 654 ImageInfo *info) 655 { 656 char size_buf[128], dsize_buf[128]; 657 if (!info->has_actual_size) { 658 snprintf(dsize_buf, sizeof(dsize_buf), "unavailable"); 659 } else { 660 get_human_readable_size(dsize_buf, sizeof(dsize_buf), 661 info->actual_size); 662 } 663 get_human_readable_size(size_buf, sizeof(size_buf), info->virtual_size); 664 func_fprintf(f, 665 "image: %s\n" 666 "file format: %s\n" 667 "virtual size: %s (%" PRId64 " bytes)\n" 668 "disk size: %s\n", 669 info->filename, info->format, size_buf, 670 info->virtual_size, 671 dsize_buf); 672 673 if (info->has_encrypted && info->encrypted) { 674 func_fprintf(f, "encrypted: yes\n"); 675 } 676 677 if (info->has_cluster_size) { 678 func_fprintf(f, "cluster_size: %" PRId64 "\n", 679 info->cluster_size); 680 } 681 682 if (info->has_dirty_flag && info->dirty_flag) { 683 func_fprintf(f, "cleanly shut down: no\n"); 684 } 685 686 if (info->has_backing_filename) { 687 func_fprintf(f, "backing file: %s", info->backing_filename); 688 if (!info->has_full_backing_filename) { 689 func_fprintf(f, " (cannot determine actual path)"); 690 } else if (strcmp(info->backing_filename, 691 info->full_backing_filename) != 0) { 692 func_fprintf(f, " (actual path: %s)", info->full_backing_filename); 693 } 694 func_fprintf(f, "\n"); 695 if (info->has_backing_filename_format) { 696 func_fprintf(f, "backing file format: %s\n", 697 info->backing_filename_format); 698 } 699 } 700 701 if (info->has_snapshots) { 702 SnapshotInfoList *elem; 703 704 func_fprintf(f, "Snapshot list:\n"); 705 bdrv_snapshot_dump(func_fprintf, f, NULL); 706 func_fprintf(f, "\n"); 707 708 /* Ideally bdrv_snapshot_dump() would operate on SnapshotInfoList but 709 * we convert to the block layer's native QEMUSnapshotInfo for now. 710 */ 711 for (elem = info->snapshots; elem; elem = elem->next) { 712 QEMUSnapshotInfo sn = { 713 .vm_state_size = elem->value->vm_state_size, 714 .date_sec = elem->value->date_sec, 715 .date_nsec = elem->value->date_nsec, 716 .vm_clock_nsec = elem->value->vm_clock_sec * 1000000000ULL + 717 elem->value->vm_clock_nsec, 718 }; 719 720 pstrcpy(sn.id_str, sizeof(sn.id_str), elem->value->id); 721 pstrcpy(sn.name, sizeof(sn.name), elem->value->name); 722 bdrv_snapshot_dump(func_fprintf, f, &sn); 723 func_fprintf(f, "\n"); 724 } 725 } 726 727 if (info->has_format_specific) { 728 func_fprintf(f, "Format specific information:\n"); 729 bdrv_image_info_specific_dump(func_fprintf, f, info->format_specific); 730 } 731 } 732