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 } 254 255 /* Always report the full_backing_filename if present, even if it's the 256 * same as backing_filename. That they are same is useful info. */ 257 if (backing_filename2) { 258 info->full_backing_filename = g_strdup(backing_filename2); 259 info->has_full_backing_filename = true; 260 } 261 262 if (bs->backing_format[0]) { 263 info->backing_filename_format = g_strdup(bs->backing_format); 264 info->has_backing_filename_format = true; 265 } 266 g_free(backing_filename2); 267 } 268 269 ret = bdrv_query_snapshot_info_list(bs, &info->snapshots, &err); 270 switch (ret) { 271 case 0: 272 if (info->snapshots) { 273 info->has_snapshots = true; 274 } 275 break; 276 /* recoverable error */ 277 case -ENOMEDIUM: 278 case -ENOTSUP: 279 error_free(err); 280 break; 281 default: 282 error_propagate(errp, err); 283 qapi_free_ImageInfo(info); 284 return; 285 } 286 287 *p_info = info; 288 } 289 290 /* @p_info will be set only on success. */ 291 static void bdrv_query_info(BlockBackend *blk, BlockInfo **p_info, 292 Error **errp) 293 { 294 BlockInfo *info = g_malloc0(sizeof(*info)); 295 BlockDriverState *bs = blk_bs(blk); 296 info->device = g_strdup(blk_name(blk)); 297 info->type = g_strdup("unknown"); 298 info->locked = blk_dev_is_medium_locked(blk); 299 info->removable = blk_dev_has_removable_media(blk); 300 301 if (blk_dev_has_removable_media(blk)) { 302 info->has_tray_open = true; 303 info->tray_open = blk_dev_is_tray_open(blk); 304 } 305 306 if (blk_iostatus_is_enabled(blk)) { 307 info->has_io_status = true; 308 info->io_status = blk_iostatus(blk); 309 } 310 311 if (bs && !QLIST_EMPTY(&bs->dirty_bitmaps)) { 312 info->has_dirty_bitmaps = true; 313 info->dirty_bitmaps = bdrv_query_dirty_bitmaps(bs); 314 } 315 316 if (bs && bs->drv) { 317 info->has_inserted = true; 318 info->inserted = bdrv_block_device_info(bs, errp); 319 if (info->inserted == NULL) { 320 goto err; 321 } 322 } 323 324 *p_info = info; 325 return; 326 327 err: 328 qapi_free_BlockInfo(info); 329 } 330 331 static BlockStats *bdrv_query_stats(const BlockDriverState *bs, 332 bool query_backing) 333 { 334 BlockStats *s; 335 336 s = g_malloc0(sizeof(*s)); 337 338 if (bdrv_get_device_name(bs)[0]) { 339 s->has_device = true; 340 s->device = g_strdup(bdrv_get_device_name(bs)); 341 } 342 343 if (bdrv_get_node_name(bs)[0]) { 344 s->has_node_name = true; 345 s->node_name = g_strdup(bdrv_get_node_name(bs)); 346 } 347 348 s->stats = g_malloc0(sizeof(*s->stats)); 349 if (bs->blk) { 350 BlockAcctStats *stats = blk_get_stats(bs->blk); 351 BlockAcctTimedStats *ts = NULL; 352 353 s->stats->rd_bytes = stats->nr_bytes[BLOCK_ACCT_READ]; 354 s->stats->wr_bytes = stats->nr_bytes[BLOCK_ACCT_WRITE]; 355 s->stats->rd_operations = stats->nr_ops[BLOCK_ACCT_READ]; 356 s->stats->wr_operations = stats->nr_ops[BLOCK_ACCT_WRITE]; 357 358 s->stats->failed_rd_operations = stats->failed_ops[BLOCK_ACCT_READ]; 359 s->stats->failed_wr_operations = stats->failed_ops[BLOCK_ACCT_WRITE]; 360 s->stats->failed_flush_operations = stats->failed_ops[BLOCK_ACCT_FLUSH]; 361 362 s->stats->invalid_rd_operations = stats->invalid_ops[BLOCK_ACCT_READ]; 363 s->stats->invalid_wr_operations = stats->invalid_ops[BLOCK_ACCT_WRITE]; 364 s->stats->invalid_flush_operations = 365 stats->invalid_ops[BLOCK_ACCT_FLUSH]; 366 367 s->stats->rd_merged = stats->merged[BLOCK_ACCT_READ]; 368 s->stats->wr_merged = stats->merged[BLOCK_ACCT_WRITE]; 369 s->stats->flush_operations = stats->nr_ops[BLOCK_ACCT_FLUSH]; 370 s->stats->wr_total_time_ns = stats->total_time_ns[BLOCK_ACCT_WRITE]; 371 s->stats->rd_total_time_ns = stats->total_time_ns[BLOCK_ACCT_READ]; 372 s->stats->flush_total_time_ns = stats->total_time_ns[BLOCK_ACCT_FLUSH]; 373 374 s->stats->has_idle_time_ns = stats->last_access_time_ns > 0; 375 if (s->stats->has_idle_time_ns) { 376 s->stats->idle_time_ns = block_acct_idle_time_ns(stats); 377 } 378 379 s->stats->account_invalid = stats->account_invalid; 380 s->stats->account_failed = stats->account_failed; 381 382 while ((ts = block_acct_interval_next(stats, ts))) { 383 BlockDeviceTimedStatsList *timed_stats = 384 g_malloc0(sizeof(*timed_stats)); 385 BlockDeviceTimedStats *dev_stats = g_malloc0(sizeof(*dev_stats)); 386 timed_stats->next = s->stats->timed_stats; 387 timed_stats->value = dev_stats; 388 s->stats->timed_stats = timed_stats; 389 390 TimedAverage *rd = &ts->latency[BLOCK_ACCT_READ]; 391 TimedAverage *wr = &ts->latency[BLOCK_ACCT_WRITE]; 392 TimedAverage *fl = &ts->latency[BLOCK_ACCT_FLUSH]; 393 394 dev_stats->interval_length = ts->interval_length; 395 396 dev_stats->min_rd_latency_ns = timed_average_min(rd); 397 dev_stats->max_rd_latency_ns = timed_average_max(rd); 398 dev_stats->avg_rd_latency_ns = timed_average_avg(rd); 399 400 dev_stats->min_wr_latency_ns = timed_average_min(wr); 401 dev_stats->max_wr_latency_ns = timed_average_max(wr); 402 dev_stats->avg_wr_latency_ns = timed_average_avg(wr); 403 404 dev_stats->min_flush_latency_ns = timed_average_min(fl); 405 dev_stats->max_flush_latency_ns = timed_average_max(fl); 406 dev_stats->avg_flush_latency_ns = timed_average_avg(fl); 407 408 dev_stats->avg_rd_queue_depth = 409 block_acct_queue_depth(ts, BLOCK_ACCT_READ); 410 dev_stats->avg_wr_queue_depth = 411 block_acct_queue_depth(ts, BLOCK_ACCT_WRITE); 412 } 413 } 414 415 s->stats->wr_highest_offset = bs->wr_highest_offset; 416 417 if (bs->file) { 418 s->has_parent = true; 419 s->parent = bdrv_query_stats(bs->file->bs, query_backing); 420 } 421 422 if (query_backing && bs->backing) { 423 s->has_backing = true; 424 s->backing = bdrv_query_stats(bs->backing->bs, query_backing); 425 } 426 427 return s; 428 } 429 430 BlockInfoList *qmp_query_block(Error **errp) 431 { 432 BlockInfoList *head = NULL, **p_next = &head; 433 BlockBackend *blk; 434 Error *local_err = NULL; 435 436 for (blk = blk_next(NULL); blk; blk = blk_next(blk)) { 437 BlockInfoList *info = g_malloc0(sizeof(*info)); 438 bdrv_query_info(blk, &info->value, &local_err); 439 if (local_err) { 440 error_propagate(errp, local_err); 441 g_free(info); 442 qapi_free_BlockInfoList(head); 443 return NULL; 444 } 445 446 *p_next = info; 447 p_next = &info->next; 448 } 449 450 return head; 451 } 452 453 BlockStatsList *qmp_query_blockstats(bool has_query_nodes, 454 bool query_nodes, 455 Error **errp) 456 { 457 BlockStatsList *head = NULL, **p_next = &head; 458 BlockDriverState *bs = NULL; 459 460 /* Just to be safe if query_nodes is not always initialized */ 461 query_nodes = has_query_nodes && query_nodes; 462 463 while ((bs = query_nodes ? bdrv_next_node(bs) : bdrv_next(bs))) { 464 BlockStatsList *info = g_malloc0(sizeof(*info)); 465 AioContext *ctx = bdrv_get_aio_context(bs); 466 467 aio_context_acquire(ctx); 468 info->value = bdrv_query_stats(bs, !query_nodes); 469 aio_context_release(ctx); 470 471 *p_next = info; 472 p_next = &info->next; 473 } 474 475 return head; 476 } 477 478 #define NB_SUFFIXES 4 479 480 static char *get_human_readable_size(char *buf, int buf_size, int64_t size) 481 { 482 static const char suffixes[NB_SUFFIXES] = {'K', 'M', 'G', 'T'}; 483 int64_t base; 484 int i; 485 486 if (size <= 999) { 487 snprintf(buf, buf_size, "%" PRId64, size); 488 } else { 489 base = 1024; 490 for (i = 0; i < NB_SUFFIXES; i++) { 491 if (size < (10 * base)) { 492 snprintf(buf, buf_size, "%0.1f%c", 493 (double)size / base, 494 suffixes[i]); 495 break; 496 } else if (size < (1000 * base) || i == (NB_SUFFIXES - 1)) { 497 snprintf(buf, buf_size, "%" PRId64 "%c", 498 ((size + (base >> 1)) / base), 499 suffixes[i]); 500 break; 501 } 502 base = base * 1024; 503 } 504 } 505 return buf; 506 } 507 508 void bdrv_snapshot_dump(fprintf_function func_fprintf, void *f, 509 QEMUSnapshotInfo *sn) 510 { 511 char buf1[128], date_buf[128], clock_buf[128]; 512 struct tm tm; 513 time_t ti; 514 int64_t secs; 515 516 if (!sn) { 517 func_fprintf(f, 518 "%-10s%-20s%7s%20s%15s", 519 "ID", "TAG", "VM SIZE", "DATE", "VM CLOCK"); 520 } else { 521 ti = sn->date_sec; 522 localtime_r(&ti, &tm); 523 strftime(date_buf, sizeof(date_buf), 524 "%Y-%m-%d %H:%M:%S", &tm); 525 secs = sn->vm_clock_nsec / 1000000000; 526 snprintf(clock_buf, sizeof(clock_buf), 527 "%02d:%02d:%02d.%03d", 528 (int)(secs / 3600), 529 (int)((secs / 60) % 60), 530 (int)(secs % 60), 531 (int)((sn->vm_clock_nsec / 1000000) % 1000)); 532 func_fprintf(f, 533 "%-10s%-20s%7s%20s%15s", 534 sn->id_str, sn->name, 535 get_human_readable_size(buf1, sizeof(buf1), 536 sn->vm_state_size), 537 date_buf, 538 clock_buf); 539 } 540 } 541 542 static void dump_qdict(fprintf_function func_fprintf, void *f, int indentation, 543 QDict *dict); 544 static void dump_qlist(fprintf_function func_fprintf, void *f, int indentation, 545 QList *list); 546 547 static void dump_qobject(fprintf_function func_fprintf, void *f, 548 int comp_indent, QObject *obj) 549 { 550 switch (qobject_type(obj)) { 551 case QTYPE_QINT: { 552 QInt *value = qobject_to_qint(obj); 553 func_fprintf(f, "%" PRId64, qint_get_int(value)); 554 break; 555 } 556 case QTYPE_QSTRING: { 557 QString *value = qobject_to_qstring(obj); 558 func_fprintf(f, "%s", qstring_get_str(value)); 559 break; 560 } 561 case QTYPE_QDICT: { 562 QDict *value = qobject_to_qdict(obj); 563 dump_qdict(func_fprintf, f, comp_indent, value); 564 break; 565 } 566 case QTYPE_QLIST: { 567 QList *value = qobject_to_qlist(obj); 568 dump_qlist(func_fprintf, f, comp_indent, value); 569 break; 570 } 571 case QTYPE_QFLOAT: { 572 QFloat *value = qobject_to_qfloat(obj); 573 func_fprintf(f, "%g", qfloat_get_double(value)); 574 break; 575 } 576 case QTYPE_QBOOL: { 577 QBool *value = qobject_to_qbool(obj); 578 func_fprintf(f, "%s", qbool_get_bool(value) ? "true" : "false"); 579 break; 580 } 581 default: 582 abort(); 583 } 584 } 585 586 static void dump_qlist(fprintf_function func_fprintf, void *f, int indentation, 587 QList *list) 588 { 589 const QListEntry *entry; 590 int i = 0; 591 592 for (entry = qlist_first(list); entry; entry = qlist_next(entry), i++) { 593 QType type = qobject_type(entry->value); 594 bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); 595 const char *format = composite ? "%*s[%i]:\n" : "%*s[%i]: "; 596 597 func_fprintf(f, format, indentation * 4, "", i); 598 dump_qobject(func_fprintf, f, indentation + 1, entry->value); 599 if (!composite) { 600 func_fprintf(f, "\n"); 601 } 602 } 603 } 604 605 static void dump_qdict(fprintf_function func_fprintf, void *f, int indentation, 606 QDict *dict) 607 { 608 const QDictEntry *entry; 609 610 for (entry = qdict_first(dict); entry; entry = qdict_next(dict, entry)) { 611 QType type = qobject_type(entry->value); 612 bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); 613 const char *format = composite ? "%*s%s:\n" : "%*s%s: "; 614 char key[strlen(entry->key) + 1]; 615 int i; 616 617 /* replace dashes with spaces in key (variable) names */ 618 for (i = 0; entry->key[i]; i++) { 619 key[i] = entry->key[i] == '-' ? ' ' : entry->key[i]; 620 } 621 key[i] = 0; 622 623 func_fprintf(f, format, indentation * 4, "", key); 624 dump_qobject(func_fprintf, f, indentation + 1, entry->value); 625 if (!composite) { 626 func_fprintf(f, "\n"); 627 } 628 } 629 } 630 631 void bdrv_image_info_specific_dump(fprintf_function func_fprintf, void *f, 632 ImageInfoSpecific *info_spec) 633 { 634 QmpOutputVisitor *ov = qmp_output_visitor_new(); 635 QObject *obj, *data; 636 637 visit_type_ImageInfoSpecific(qmp_output_get_visitor(ov), &info_spec, NULL, 638 &error_abort); 639 obj = qmp_output_get_qobject(ov); 640 assert(qobject_type(obj) == QTYPE_QDICT); 641 data = qdict_get(qobject_to_qdict(obj), "data"); 642 dump_qobject(func_fprintf, f, 1, data); 643 qmp_output_visitor_cleanup(ov); 644 } 645 646 void bdrv_image_info_dump(fprintf_function func_fprintf, void *f, 647 ImageInfo *info) 648 { 649 char size_buf[128], dsize_buf[128]; 650 if (!info->has_actual_size) { 651 snprintf(dsize_buf, sizeof(dsize_buf), "unavailable"); 652 } else { 653 get_human_readable_size(dsize_buf, sizeof(dsize_buf), 654 info->actual_size); 655 } 656 get_human_readable_size(size_buf, sizeof(size_buf), info->virtual_size); 657 func_fprintf(f, 658 "image: %s\n" 659 "file format: %s\n" 660 "virtual size: %s (%" PRId64 " bytes)\n" 661 "disk size: %s\n", 662 info->filename, info->format, size_buf, 663 info->virtual_size, 664 dsize_buf); 665 666 if (info->has_encrypted && info->encrypted) { 667 func_fprintf(f, "encrypted: yes\n"); 668 } 669 670 if (info->has_cluster_size) { 671 func_fprintf(f, "cluster_size: %" PRId64 "\n", 672 info->cluster_size); 673 } 674 675 if (info->has_dirty_flag && info->dirty_flag) { 676 func_fprintf(f, "cleanly shut down: no\n"); 677 } 678 679 if (info->has_backing_filename) { 680 func_fprintf(f, "backing file: %s", info->backing_filename); 681 if (!info->has_full_backing_filename) { 682 func_fprintf(f, " (cannot determine actual path)"); 683 } else if (strcmp(info->backing_filename, 684 info->full_backing_filename) != 0) { 685 func_fprintf(f, " (actual path: %s)", info->full_backing_filename); 686 } 687 func_fprintf(f, "\n"); 688 if (info->has_backing_filename_format) { 689 func_fprintf(f, "backing file format: %s\n", 690 info->backing_filename_format); 691 } 692 } 693 694 if (info->has_snapshots) { 695 SnapshotInfoList *elem; 696 697 func_fprintf(f, "Snapshot list:\n"); 698 bdrv_snapshot_dump(func_fprintf, f, NULL); 699 func_fprintf(f, "\n"); 700 701 /* Ideally bdrv_snapshot_dump() would operate on SnapshotInfoList but 702 * we convert to the block layer's native QEMUSnapshotInfo for now. 703 */ 704 for (elem = info->snapshots; elem; elem = elem->next) { 705 QEMUSnapshotInfo sn = { 706 .vm_state_size = elem->value->vm_state_size, 707 .date_sec = elem->value->date_sec, 708 .date_nsec = elem->value->date_nsec, 709 .vm_clock_nsec = elem->value->vm_clock_sec * 1000000000ULL + 710 elem->value->vm_clock_nsec, 711 }; 712 713 pstrcpy(sn.id_str, sizeof(sn.id_str), elem->value->id); 714 pstrcpy(sn.name, sizeof(sn.name), elem->value->name); 715 bdrv_snapshot_dump(func_fprintf, f, &sn); 716 func_fprintf(f, "\n"); 717 } 718 } 719 720 if (info->has_format_specific) { 721 func_fprintf(f, "Format specific information:\n"); 722 bdrv_image_info_specific_dump(func_fprintf, f, info->format_specific); 723 } 724 } 725