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 size = bdrv_getlength(bs); 215 if (size < 0) { 216 error_setg_errno(errp, -size, "Can't get size of device '%s'", 217 bdrv_get_device_name(bs)); 218 return; 219 } 220 221 info = g_new0(ImageInfo, 1); 222 info->filename = g_strdup(bs->filename); 223 info->format = g_strdup(bdrv_get_format_name(bs)); 224 info->virtual_size = size; 225 info->actual_size = bdrv_get_allocated_file_size(bs); 226 info->has_actual_size = info->actual_size >= 0; 227 if (bdrv_is_encrypted(bs)) { 228 info->encrypted = true; 229 info->has_encrypted = true; 230 } 231 if (bdrv_get_info(bs, &bdi) >= 0) { 232 if (bdi.cluster_size != 0) { 233 info->cluster_size = bdi.cluster_size; 234 info->has_cluster_size = true; 235 } 236 info->dirty_flag = bdi.is_dirty; 237 info->has_dirty_flag = true; 238 } 239 info->format_specific = bdrv_get_specific_info(bs); 240 info->has_format_specific = info->format_specific != NULL; 241 242 backing_filename = bs->backing_file; 243 if (backing_filename[0] != '\0') { 244 char *backing_filename2 = g_malloc0(PATH_MAX); 245 info->backing_filename = g_strdup(backing_filename); 246 info->has_backing_filename = true; 247 bdrv_get_full_backing_filename(bs, backing_filename2, PATH_MAX, &err); 248 if (err) { 249 /* Can't reconstruct the full backing filename, so we must omit 250 * this field and apply a Best Effort to this query. */ 251 g_free(backing_filename2); 252 backing_filename2 = NULL; 253 error_free(err); 254 err = NULL; 255 } 256 257 /* Always report the full_backing_filename if present, even if it's the 258 * same as backing_filename. That they are same is useful info. */ 259 if (backing_filename2) { 260 info->full_backing_filename = g_strdup(backing_filename2); 261 info->has_full_backing_filename = true; 262 } 263 264 if (bs->backing_format[0]) { 265 info->backing_filename_format = g_strdup(bs->backing_format); 266 info->has_backing_filename_format = true; 267 } 268 g_free(backing_filename2); 269 } 270 271 ret = bdrv_query_snapshot_info_list(bs, &info->snapshots, &err); 272 switch (ret) { 273 case 0: 274 if (info->snapshots) { 275 info->has_snapshots = true; 276 } 277 break; 278 /* recoverable error */ 279 case -ENOMEDIUM: 280 case -ENOTSUP: 281 error_free(err); 282 break; 283 default: 284 error_propagate(errp, err); 285 qapi_free_ImageInfo(info); 286 return; 287 } 288 289 *p_info = info; 290 } 291 292 /* @p_info will be set only on success. */ 293 static void bdrv_query_info(BlockBackend *blk, BlockInfo **p_info, 294 Error **errp) 295 { 296 BlockInfo *info = g_malloc0(sizeof(*info)); 297 BlockDriverState *bs = blk_bs(blk); 298 info->device = g_strdup(blk_name(blk)); 299 info->type = g_strdup("unknown"); 300 info->locked = blk_dev_is_medium_locked(blk); 301 info->removable = blk_dev_has_removable_media(blk); 302 303 if (blk_dev_has_removable_media(blk)) { 304 info->has_tray_open = true; 305 info->tray_open = blk_dev_is_tray_open(blk); 306 } 307 308 if (blk_iostatus_is_enabled(blk)) { 309 info->has_io_status = true; 310 info->io_status = blk_iostatus(blk); 311 } 312 313 if (bs && !QLIST_EMPTY(&bs->dirty_bitmaps)) { 314 info->has_dirty_bitmaps = true; 315 info->dirty_bitmaps = bdrv_query_dirty_bitmaps(bs); 316 } 317 318 if (bs && bs->drv) { 319 info->has_inserted = true; 320 info->inserted = bdrv_block_device_info(bs, errp); 321 if (info->inserted == NULL) { 322 goto err; 323 } 324 } 325 326 *p_info = info; 327 return; 328 329 err: 330 qapi_free_BlockInfo(info); 331 } 332 333 static BlockStats *bdrv_query_stats(const BlockDriverState *bs, 334 bool query_backing) 335 { 336 BlockStats *s; 337 338 s = g_malloc0(sizeof(*s)); 339 340 if (bdrv_get_device_name(bs)[0]) { 341 s->has_device = true; 342 s->device = g_strdup(bdrv_get_device_name(bs)); 343 } 344 345 if (bdrv_get_node_name(bs)[0]) { 346 s->has_node_name = true; 347 s->node_name = g_strdup(bdrv_get_node_name(bs)); 348 } 349 350 s->stats = g_malloc0(sizeof(*s->stats)); 351 if (bs->blk) { 352 BlockAcctStats *stats = blk_get_stats(bs->blk); 353 BlockAcctTimedStats *ts = NULL; 354 355 s->stats->rd_bytes = stats->nr_bytes[BLOCK_ACCT_READ]; 356 s->stats->wr_bytes = stats->nr_bytes[BLOCK_ACCT_WRITE]; 357 s->stats->rd_operations = stats->nr_ops[BLOCK_ACCT_READ]; 358 s->stats->wr_operations = stats->nr_ops[BLOCK_ACCT_WRITE]; 359 360 s->stats->failed_rd_operations = stats->failed_ops[BLOCK_ACCT_READ]; 361 s->stats->failed_wr_operations = stats->failed_ops[BLOCK_ACCT_WRITE]; 362 s->stats->failed_flush_operations = stats->failed_ops[BLOCK_ACCT_FLUSH]; 363 364 s->stats->invalid_rd_operations = stats->invalid_ops[BLOCK_ACCT_READ]; 365 s->stats->invalid_wr_operations = stats->invalid_ops[BLOCK_ACCT_WRITE]; 366 s->stats->invalid_flush_operations = 367 stats->invalid_ops[BLOCK_ACCT_FLUSH]; 368 369 s->stats->rd_merged = stats->merged[BLOCK_ACCT_READ]; 370 s->stats->wr_merged = stats->merged[BLOCK_ACCT_WRITE]; 371 s->stats->flush_operations = stats->nr_ops[BLOCK_ACCT_FLUSH]; 372 s->stats->wr_total_time_ns = stats->total_time_ns[BLOCK_ACCT_WRITE]; 373 s->stats->rd_total_time_ns = stats->total_time_ns[BLOCK_ACCT_READ]; 374 s->stats->flush_total_time_ns = stats->total_time_ns[BLOCK_ACCT_FLUSH]; 375 376 s->stats->has_idle_time_ns = stats->last_access_time_ns > 0; 377 if (s->stats->has_idle_time_ns) { 378 s->stats->idle_time_ns = block_acct_idle_time_ns(stats); 379 } 380 381 s->stats->account_invalid = stats->account_invalid; 382 s->stats->account_failed = stats->account_failed; 383 384 while ((ts = block_acct_interval_next(stats, ts))) { 385 BlockDeviceTimedStatsList *timed_stats = 386 g_malloc0(sizeof(*timed_stats)); 387 BlockDeviceTimedStats *dev_stats = g_malloc0(sizeof(*dev_stats)); 388 timed_stats->next = s->stats->timed_stats; 389 timed_stats->value = dev_stats; 390 s->stats->timed_stats = timed_stats; 391 392 TimedAverage *rd = &ts->latency[BLOCK_ACCT_READ]; 393 TimedAverage *wr = &ts->latency[BLOCK_ACCT_WRITE]; 394 TimedAverage *fl = &ts->latency[BLOCK_ACCT_FLUSH]; 395 396 dev_stats->interval_length = ts->interval_length; 397 398 dev_stats->min_rd_latency_ns = timed_average_min(rd); 399 dev_stats->max_rd_latency_ns = timed_average_max(rd); 400 dev_stats->avg_rd_latency_ns = timed_average_avg(rd); 401 402 dev_stats->min_wr_latency_ns = timed_average_min(wr); 403 dev_stats->max_wr_latency_ns = timed_average_max(wr); 404 dev_stats->avg_wr_latency_ns = timed_average_avg(wr); 405 406 dev_stats->min_flush_latency_ns = timed_average_min(fl); 407 dev_stats->max_flush_latency_ns = timed_average_max(fl); 408 dev_stats->avg_flush_latency_ns = timed_average_avg(fl); 409 410 dev_stats->avg_rd_queue_depth = 411 block_acct_queue_depth(ts, BLOCK_ACCT_READ); 412 dev_stats->avg_wr_queue_depth = 413 block_acct_queue_depth(ts, BLOCK_ACCT_WRITE); 414 } 415 } 416 417 s->stats->wr_highest_offset = bs->wr_highest_offset; 418 419 if (bs->file) { 420 s->has_parent = true; 421 s->parent = bdrv_query_stats(bs->file->bs, query_backing); 422 } 423 424 if (query_backing && bs->backing) { 425 s->has_backing = true; 426 s->backing = bdrv_query_stats(bs->backing->bs, query_backing); 427 } 428 429 return s; 430 } 431 432 BlockInfoList *qmp_query_block(Error **errp) 433 { 434 BlockInfoList *head = NULL, **p_next = &head; 435 BlockBackend *blk; 436 Error *local_err = NULL; 437 438 for (blk = blk_next(NULL); blk; blk = blk_next(blk)) { 439 BlockInfoList *info = g_malloc0(sizeof(*info)); 440 bdrv_query_info(blk, &info->value, &local_err); 441 if (local_err) { 442 error_propagate(errp, local_err); 443 g_free(info); 444 qapi_free_BlockInfoList(head); 445 return NULL; 446 } 447 448 *p_next = info; 449 p_next = &info->next; 450 } 451 452 return head; 453 } 454 455 BlockStatsList *qmp_query_blockstats(bool has_query_nodes, 456 bool query_nodes, 457 Error **errp) 458 { 459 BlockStatsList *head = NULL, **p_next = &head; 460 BlockDriverState *bs = NULL; 461 462 /* Just to be safe if query_nodes is not always initialized */ 463 query_nodes = has_query_nodes && query_nodes; 464 465 while ((bs = query_nodes ? bdrv_next_node(bs) : bdrv_next(bs))) { 466 BlockStatsList *info = g_malloc0(sizeof(*info)); 467 AioContext *ctx = bdrv_get_aio_context(bs); 468 469 aio_context_acquire(ctx); 470 info->value = bdrv_query_stats(bs, !query_nodes); 471 aio_context_release(ctx); 472 473 *p_next = info; 474 p_next = &info->next; 475 } 476 477 return head; 478 } 479 480 #define NB_SUFFIXES 4 481 482 static char *get_human_readable_size(char *buf, int buf_size, int64_t size) 483 { 484 static const char suffixes[NB_SUFFIXES] = {'K', 'M', 'G', 'T'}; 485 int64_t base; 486 int i; 487 488 if (size <= 999) { 489 snprintf(buf, buf_size, "%" PRId64, size); 490 } else { 491 base = 1024; 492 for (i = 0; i < NB_SUFFIXES; i++) { 493 if (size < (10 * base)) { 494 snprintf(buf, buf_size, "%0.1f%c", 495 (double)size / base, 496 suffixes[i]); 497 break; 498 } else if (size < (1000 * base) || i == (NB_SUFFIXES - 1)) { 499 snprintf(buf, buf_size, "%" PRId64 "%c", 500 ((size + (base >> 1)) / base), 501 suffixes[i]); 502 break; 503 } 504 base = base * 1024; 505 } 506 } 507 return buf; 508 } 509 510 void bdrv_snapshot_dump(fprintf_function func_fprintf, void *f, 511 QEMUSnapshotInfo *sn) 512 { 513 char buf1[128], date_buf[128], clock_buf[128]; 514 struct tm tm; 515 time_t ti; 516 int64_t secs; 517 518 if (!sn) { 519 func_fprintf(f, 520 "%-10s%-20s%7s%20s%15s", 521 "ID", "TAG", "VM SIZE", "DATE", "VM CLOCK"); 522 } else { 523 ti = sn->date_sec; 524 localtime_r(&ti, &tm); 525 strftime(date_buf, sizeof(date_buf), 526 "%Y-%m-%d %H:%M:%S", &tm); 527 secs = sn->vm_clock_nsec / 1000000000; 528 snprintf(clock_buf, sizeof(clock_buf), 529 "%02d:%02d:%02d.%03d", 530 (int)(secs / 3600), 531 (int)((secs / 60) % 60), 532 (int)(secs % 60), 533 (int)((sn->vm_clock_nsec / 1000000) % 1000)); 534 func_fprintf(f, 535 "%-10s%-20s%7s%20s%15s", 536 sn->id_str, sn->name, 537 get_human_readable_size(buf1, sizeof(buf1), 538 sn->vm_state_size), 539 date_buf, 540 clock_buf); 541 } 542 } 543 544 static void dump_qdict(fprintf_function func_fprintf, void *f, int indentation, 545 QDict *dict); 546 static void dump_qlist(fprintf_function func_fprintf, void *f, int indentation, 547 QList *list); 548 549 static void dump_qobject(fprintf_function func_fprintf, void *f, 550 int comp_indent, QObject *obj) 551 { 552 switch (qobject_type(obj)) { 553 case QTYPE_QINT: { 554 QInt *value = qobject_to_qint(obj); 555 func_fprintf(f, "%" PRId64, qint_get_int(value)); 556 break; 557 } 558 case QTYPE_QSTRING: { 559 QString *value = qobject_to_qstring(obj); 560 func_fprintf(f, "%s", qstring_get_str(value)); 561 break; 562 } 563 case QTYPE_QDICT: { 564 QDict *value = qobject_to_qdict(obj); 565 dump_qdict(func_fprintf, f, comp_indent, value); 566 break; 567 } 568 case QTYPE_QLIST: { 569 QList *value = qobject_to_qlist(obj); 570 dump_qlist(func_fprintf, f, comp_indent, value); 571 break; 572 } 573 case QTYPE_QFLOAT: { 574 QFloat *value = qobject_to_qfloat(obj); 575 func_fprintf(f, "%g", qfloat_get_double(value)); 576 break; 577 } 578 case QTYPE_QBOOL: { 579 QBool *value = qobject_to_qbool(obj); 580 func_fprintf(f, "%s", qbool_get_bool(value) ? "true" : "false"); 581 break; 582 } 583 default: 584 abort(); 585 } 586 } 587 588 static void dump_qlist(fprintf_function func_fprintf, void *f, int indentation, 589 QList *list) 590 { 591 const QListEntry *entry; 592 int i = 0; 593 594 for (entry = qlist_first(list); entry; entry = qlist_next(entry), i++) { 595 QType type = qobject_type(entry->value); 596 bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); 597 const char *format = composite ? "%*s[%i]:\n" : "%*s[%i]: "; 598 599 func_fprintf(f, format, indentation * 4, "", i); 600 dump_qobject(func_fprintf, f, indentation + 1, entry->value); 601 if (!composite) { 602 func_fprintf(f, "\n"); 603 } 604 } 605 } 606 607 static void dump_qdict(fprintf_function func_fprintf, void *f, int indentation, 608 QDict *dict) 609 { 610 const QDictEntry *entry; 611 612 for (entry = qdict_first(dict); entry; entry = qdict_next(dict, entry)) { 613 QType type = qobject_type(entry->value); 614 bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); 615 const char *format = composite ? "%*s%s:\n" : "%*s%s: "; 616 char key[strlen(entry->key) + 1]; 617 int i; 618 619 /* replace dashes with spaces in key (variable) names */ 620 for (i = 0; entry->key[i]; i++) { 621 key[i] = entry->key[i] == '-' ? ' ' : entry->key[i]; 622 } 623 key[i] = 0; 624 625 func_fprintf(f, format, indentation * 4, "", key); 626 dump_qobject(func_fprintf, f, indentation + 1, entry->value); 627 if (!composite) { 628 func_fprintf(f, "\n"); 629 } 630 } 631 } 632 633 void bdrv_image_info_specific_dump(fprintf_function func_fprintf, void *f, 634 ImageInfoSpecific *info_spec) 635 { 636 QmpOutputVisitor *ov = qmp_output_visitor_new(); 637 QObject *obj, *data; 638 639 visit_type_ImageInfoSpecific(qmp_output_get_visitor(ov), &info_spec, NULL, 640 &error_abort); 641 obj = qmp_output_get_qobject(ov); 642 assert(qobject_type(obj) == QTYPE_QDICT); 643 data = qdict_get(qobject_to_qdict(obj), "data"); 644 dump_qobject(func_fprintf, f, 1, data); 645 qmp_output_visitor_cleanup(ov); 646 } 647 648 void bdrv_image_info_dump(fprintf_function func_fprintf, void *f, 649 ImageInfo *info) 650 { 651 char size_buf[128], dsize_buf[128]; 652 if (!info->has_actual_size) { 653 snprintf(dsize_buf, sizeof(dsize_buf), "unavailable"); 654 } else { 655 get_human_readable_size(dsize_buf, sizeof(dsize_buf), 656 info->actual_size); 657 } 658 get_human_readable_size(size_buf, sizeof(size_buf), info->virtual_size); 659 func_fprintf(f, 660 "image: %s\n" 661 "file format: %s\n" 662 "virtual size: %s (%" PRId64 " bytes)\n" 663 "disk size: %s\n", 664 info->filename, info->format, size_buf, 665 info->virtual_size, 666 dsize_buf); 667 668 if (info->has_encrypted && info->encrypted) { 669 func_fprintf(f, "encrypted: yes\n"); 670 } 671 672 if (info->has_cluster_size) { 673 func_fprintf(f, "cluster_size: %" PRId64 "\n", 674 info->cluster_size); 675 } 676 677 if (info->has_dirty_flag && info->dirty_flag) { 678 func_fprintf(f, "cleanly shut down: no\n"); 679 } 680 681 if (info->has_backing_filename) { 682 func_fprintf(f, "backing file: %s", info->backing_filename); 683 if (!info->has_full_backing_filename) { 684 func_fprintf(f, " (cannot determine actual path)"); 685 } else if (strcmp(info->backing_filename, 686 info->full_backing_filename) != 0) { 687 func_fprintf(f, " (actual path: %s)", info->full_backing_filename); 688 } 689 func_fprintf(f, "\n"); 690 if (info->has_backing_filename_format) { 691 func_fprintf(f, "backing file format: %s\n", 692 info->backing_filename_format); 693 } 694 } 695 696 if (info->has_snapshots) { 697 SnapshotInfoList *elem; 698 699 func_fprintf(f, "Snapshot list:\n"); 700 bdrv_snapshot_dump(func_fprintf, f, NULL); 701 func_fprintf(f, "\n"); 702 703 /* Ideally bdrv_snapshot_dump() would operate on SnapshotInfoList but 704 * we convert to the block layer's native QEMUSnapshotInfo for now. 705 */ 706 for (elem = info->snapshots; elem; elem = elem->next) { 707 QEMUSnapshotInfo sn = { 708 .vm_state_size = elem->value->vm_state_size, 709 .date_sec = elem->value->date_sec, 710 .date_nsec = elem->value->date_nsec, 711 .vm_clock_nsec = elem->value->vm_clock_sec * 1000000000ULL + 712 elem->value->vm_clock_nsec, 713 }; 714 715 pstrcpy(sn.id_str, sizeof(sn.id_str), elem->value->id); 716 pstrcpy(sn.name, sizeof(sn.name), elem->value->name); 717 bdrv_snapshot_dump(func_fprintf, f, &sn); 718 func_fprintf(f, "\n"); 719 } 720 } 721 722 if (info->has_format_specific) { 723 func_fprintf(f, "Format specific information:\n"); 724 bdrv_image_info_specific_dump(func_fprintf, f, info->format_specific); 725 } 726 } 727