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