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 "qemu-common.h" 27 #include "block/qapi.h" 28 #include "block/block_int.h" 29 #include "block/throttle-groups.h" 30 #include "block/write-threshold.h" 31 #include "qapi/error.h" 32 #include "qapi/qapi-commands-block-core.h" 33 #include "qapi/qobject-output-visitor.h" 34 #include "qapi/qapi-visit-block-core.h" 35 #include "qapi/qmp/qbool.h" 36 #include "qapi/qmp/qdict.h" 37 #include "qapi/qmp/qlist.h" 38 #include "qapi/qmp/qnum.h" 39 #include "qapi/qmp/qstring.h" 40 #include "qemu/qemu-print.h" 41 #include "sysemu/block-backend.h" 42 #include "qemu/cutils.h" 43 44 BlockDeviceInfo *bdrv_block_device_info(BlockBackend *blk, 45 BlockDriverState *bs, Error **errp) 46 { 47 ImageInfo **p_image_info; 48 BlockDriverState *bs0; 49 BlockDeviceInfo *info; 50 51 if (!bs->drv) { 52 error_setg(errp, "Block device %s is ejected", bs->node_name); 53 return NULL; 54 } 55 56 bdrv_refresh_filename(bs); 57 58 info = g_malloc0(sizeof(*info)); 59 info->file = g_strdup(bs->filename); 60 info->ro = bs->read_only; 61 info->drv = g_strdup(bs->drv->format_name); 62 info->encrypted = bs->encrypted; 63 info->encryption_key_missing = false; 64 65 info->cache = g_new(BlockdevCacheInfo, 1); 66 *info->cache = (BlockdevCacheInfo) { 67 .writeback = blk ? blk_enable_write_cache(blk) : true, 68 .direct = !!(bs->open_flags & BDRV_O_NOCACHE), 69 .no_flush = !!(bs->open_flags & BDRV_O_NO_FLUSH), 70 }; 71 72 if (bs->node_name[0]) { 73 info->has_node_name = true; 74 info->node_name = g_strdup(bs->node_name); 75 } 76 77 if (bs->backing_file[0]) { 78 info->has_backing_file = true; 79 info->backing_file = g_strdup(bs->backing_file); 80 } 81 82 info->detect_zeroes = bs->detect_zeroes; 83 84 if (blk && blk_get_public(blk)->throttle_group_member.throttle_state) { 85 ThrottleConfig cfg; 86 BlockBackendPublic *blkp = blk_get_public(blk); 87 88 throttle_group_get_config(&blkp->throttle_group_member, &cfg); 89 90 info->bps = cfg.buckets[THROTTLE_BPS_TOTAL].avg; 91 info->bps_rd = cfg.buckets[THROTTLE_BPS_READ].avg; 92 info->bps_wr = cfg.buckets[THROTTLE_BPS_WRITE].avg; 93 94 info->iops = cfg.buckets[THROTTLE_OPS_TOTAL].avg; 95 info->iops_rd = cfg.buckets[THROTTLE_OPS_READ].avg; 96 info->iops_wr = cfg.buckets[THROTTLE_OPS_WRITE].avg; 97 98 info->has_bps_max = cfg.buckets[THROTTLE_BPS_TOTAL].max; 99 info->bps_max = cfg.buckets[THROTTLE_BPS_TOTAL].max; 100 info->has_bps_rd_max = cfg.buckets[THROTTLE_BPS_READ].max; 101 info->bps_rd_max = cfg.buckets[THROTTLE_BPS_READ].max; 102 info->has_bps_wr_max = cfg.buckets[THROTTLE_BPS_WRITE].max; 103 info->bps_wr_max = cfg.buckets[THROTTLE_BPS_WRITE].max; 104 105 info->has_iops_max = cfg.buckets[THROTTLE_OPS_TOTAL].max; 106 info->iops_max = cfg.buckets[THROTTLE_OPS_TOTAL].max; 107 info->has_iops_rd_max = cfg.buckets[THROTTLE_OPS_READ].max; 108 info->iops_rd_max = cfg.buckets[THROTTLE_OPS_READ].max; 109 info->has_iops_wr_max = cfg.buckets[THROTTLE_OPS_WRITE].max; 110 info->iops_wr_max = cfg.buckets[THROTTLE_OPS_WRITE].max; 111 112 info->has_bps_max_length = info->has_bps_max; 113 info->bps_max_length = 114 cfg.buckets[THROTTLE_BPS_TOTAL].burst_length; 115 info->has_bps_rd_max_length = info->has_bps_rd_max; 116 info->bps_rd_max_length = 117 cfg.buckets[THROTTLE_BPS_READ].burst_length; 118 info->has_bps_wr_max_length = info->has_bps_wr_max; 119 info->bps_wr_max_length = 120 cfg.buckets[THROTTLE_BPS_WRITE].burst_length; 121 122 info->has_iops_max_length = info->has_iops_max; 123 info->iops_max_length = 124 cfg.buckets[THROTTLE_OPS_TOTAL].burst_length; 125 info->has_iops_rd_max_length = info->has_iops_rd_max; 126 info->iops_rd_max_length = 127 cfg.buckets[THROTTLE_OPS_READ].burst_length; 128 info->has_iops_wr_max_length = info->has_iops_wr_max; 129 info->iops_wr_max_length = 130 cfg.buckets[THROTTLE_OPS_WRITE].burst_length; 131 132 info->has_iops_size = cfg.op_size; 133 info->iops_size = cfg.op_size; 134 135 info->has_group = true; 136 info->group = 137 g_strdup(throttle_group_get_name(&blkp->throttle_group_member)); 138 } 139 140 info->write_threshold = bdrv_write_threshold_get(bs); 141 142 bs0 = bs; 143 p_image_info = &info->image; 144 info->backing_file_depth = 0; 145 while (1) { 146 Error *local_err = NULL; 147 bdrv_query_image_info(bs0, p_image_info, &local_err); 148 if (local_err) { 149 error_propagate(errp, local_err); 150 qapi_free_BlockDeviceInfo(info); 151 return NULL; 152 } 153 154 if (bs0->drv && bs0->backing) { 155 info->backing_file_depth++; 156 bs0 = bs0->backing->bs; 157 (*p_image_info)->has_backing_image = true; 158 p_image_info = &((*p_image_info)->backing_image); 159 } else { 160 break; 161 } 162 163 /* Skip automatically inserted nodes that the user isn't aware of for 164 * query-block (blk != NULL), but not for query-named-block-nodes */ 165 while (blk && bs0->drv && bs0->implicit) { 166 bs0 = backing_bs(bs0); 167 assert(bs0); 168 } 169 } 170 171 return info; 172 } 173 174 /* 175 * Returns 0 on success, with *p_list either set to describe snapshot 176 * information, or NULL because there are no snapshots. Returns -errno on 177 * error, with *p_list untouched. 178 */ 179 int bdrv_query_snapshot_info_list(BlockDriverState *bs, 180 SnapshotInfoList **p_list, 181 Error **errp) 182 { 183 int i, sn_count; 184 QEMUSnapshotInfo *sn_tab = NULL; 185 SnapshotInfoList *info_list, *cur_item = NULL, *head = NULL; 186 SnapshotInfo *info; 187 188 sn_count = bdrv_snapshot_list(bs, &sn_tab); 189 if (sn_count < 0) { 190 const char *dev = bdrv_get_device_name(bs); 191 switch (sn_count) { 192 case -ENOMEDIUM: 193 error_setg(errp, "Device '%s' is not inserted", dev); 194 break; 195 case -ENOTSUP: 196 error_setg(errp, 197 "Device '%s' does not support internal snapshots", 198 dev); 199 break; 200 default: 201 error_setg_errno(errp, -sn_count, 202 "Can't list snapshots of device '%s'", dev); 203 break; 204 } 205 return sn_count; 206 } 207 208 for (i = 0; i < sn_count; i++) { 209 info = g_new0(SnapshotInfo, 1); 210 info->id = g_strdup(sn_tab[i].id_str); 211 info->name = g_strdup(sn_tab[i].name); 212 info->vm_state_size = sn_tab[i].vm_state_size; 213 info->date_sec = sn_tab[i].date_sec; 214 info->date_nsec = sn_tab[i].date_nsec; 215 info->vm_clock_sec = sn_tab[i].vm_clock_nsec / 1000000000; 216 info->vm_clock_nsec = sn_tab[i].vm_clock_nsec % 1000000000; 217 218 info_list = g_new0(SnapshotInfoList, 1); 219 info_list->value = info; 220 221 /* XXX: waiting for the qapi to support qemu-queue.h types */ 222 if (!cur_item) { 223 head = cur_item = info_list; 224 } else { 225 cur_item->next = info_list; 226 cur_item = info_list; 227 } 228 229 } 230 231 g_free(sn_tab); 232 *p_list = head; 233 return 0; 234 } 235 236 /** 237 * bdrv_query_image_info: 238 * @bs: block device to examine 239 * @p_info: location to store image information 240 * @errp: location to store error information 241 * 242 * Store "flat" image information in @p_info. 243 * 244 * "Flat" means it does *not* query backing image information, 245 * i.e. (*pinfo)->has_backing_image will be set to false and 246 * (*pinfo)->backing_image to NULL even when the image does in fact have 247 * a backing image. 248 * 249 * @p_info will be set only on success. On error, store error in @errp. 250 */ 251 void bdrv_query_image_info(BlockDriverState *bs, 252 ImageInfo **p_info, 253 Error **errp) 254 { 255 int64_t size; 256 const char *backing_filename; 257 BlockDriverInfo bdi; 258 int ret; 259 Error *err = NULL; 260 ImageInfo *info; 261 262 aio_context_acquire(bdrv_get_aio_context(bs)); 263 264 size = bdrv_getlength(bs); 265 if (size < 0) { 266 error_setg_errno(errp, -size, "Can't get image size '%s'", 267 bs->exact_filename); 268 goto out; 269 } 270 271 bdrv_refresh_filename(bs); 272 273 info = g_new0(ImageInfo, 1); 274 info->filename = g_strdup(bs->filename); 275 info->format = g_strdup(bdrv_get_format_name(bs)); 276 info->virtual_size = size; 277 info->actual_size = bdrv_get_allocated_file_size(bs); 278 info->has_actual_size = info->actual_size >= 0; 279 if (bdrv_is_encrypted(bs)) { 280 info->encrypted = true; 281 info->has_encrypted = true; 282 } 283 if (bdrv_get_info(bs, &bdi) >= 0) { 284 if (bdi.cluster_size != 0) { 285 info->cluster_size = bdi.cluster_size; 286 info->has_cluster_size = true; 287 } 288 info->dirty_flag = bdi.is_dirty; 289 info->has_dirty_flag = true; 290 } 291 info->format_specific = bdrv_get_specific_info(bs, &err); 292 if (err) { 293 error_propagate(errp, err); 294 qapi_free_ImageInfo(info); 295 goto out; 296 } 297 info->has_format_specific = info->format_specific != NULL; 298 299 backing_filename = bs->backing_file; 300 if (backing_filename[0] != '\0') { 301 char *backing_filename2; 302 info->backing_filename = g_strdup(backing_filename); 303 info->has_backing_filename = true; 304 backing_filename2 = bdrv_get_full_backing_filename(bs, NULL); 305 306 /* Always report the full_backing_filename if present, even if it's the 307 * same as backing_filename. That they are same is useful info. */ 308 if (backing_filename2) { 309 info->full_backing_filename = g_strdup(backing_filename2); 310 info->has_full_backing_filename = true; 311 } 312 313 if (bs->backing_format[0]) { 314 info->backing_filename_format = g_strdup(bs->backing_format); 315 info->has_backing_filename_format = true; 316 } 317 g_free(backing_filename2); 318 } 319 320 ret = bdrv_query_snapshot_info_list(bs, &info->snapshots, &err); 321 switch (ret) { 322 case 0: 323 if (info->snapshots) { 324 info->has_snapshots = true; 325 } 326 break; 327 /* recoverable error */ 328 case -ENOMEDIUM: 329 case -ENOTSUP: 330 error_free(err); 331 break; 332 default: 333 error_propagate(errp, err); 334 qapi_free_ImageInfo(info); 335 goto out; 336 } 337 338 *p_info = info; 339 340 out: 341 aio_context_release(bdrv_get_aio_context(bs)); 342 } 343 344 /* @p_info will be set only on success. */ 345 static void bdrv_query_info(BlockBackend *blk, BlockInfo **p_info, 346 Error **errp) 347 { 348 BlockInfo *info = g_malloc0(sizeof(*info)); 349 BlockDriverState *bs = blk_bs(blk); 350 char *qdev; 351 352 /* Skip automatically inserted nodes that the user isn't aware of */ 353 while (bs && bs->drv && bs->implicit) { 354 bs = backing_bs(bs); 355 } 356 357 info->device = g_strdup(blk_name(blk)); 358 info->type = g_strdup("unknown"); 359 info->locked = blk_dev_is_medium_locked(blk); 360 info->removable = blk_dev_has_removable_media(blk); 361 362 qdev = blk_get_attached_dev_id(blk); 363 if (qdev && *qdev) { 364 info->has_qdev = true; 365 info->qdev = qdev; 366 } else { 367 g_free(qdev); 368 } 369 370 if (blk_dev_has_tray(blk)) { 371 info->has_tray_open = true; 372 info->tray_open = blk_dev_is_tray_open(blk); 373 } 374 375 if (blk_iostatus_is_enabled(blk)) { 376 info->has_io_status = true; 377 info->io_status = blk_iostatus(blk); 378 } 379 380 if (bs && !QLIST_EMPTY(&bs->dirty_bitmaps)) { 381 info->has_dirty_bitmaps = true; 382 info->dirty_bitmaps = bdrv_query_dirty_bitmaps(bs); 383 } 384 385 if (bs && bs->drv) { 386 info->has_inserted = true; 387 info->inserted = bdrv_block_device_info(blk, bs, errp); 388 if (info->inserted == NULL) { 389 goto err; 390 } 391 } 392 393 *p_info = info; 394 return; 395 396 err: 397 qapi_free_BlockInfo(info); 398 } 399 400 static uint64List *uint64_list(uint64_t *list, int size) 401 { 402 int i; 403 uint64List *out_list = NULL; 404 uint64List **pout_list = &out_list; 405 406 for (i = 0; i < size; i++) { 407 uint64List *entry = g_new(uint64List, 1); 408 entry->value = list[i]; 409 *pout_list = entry; 410 pout_list = &entry->next; 411 } 412 413 *pout_list = NULL; 414 415 return out_list; 416 } 417 418 static void bdrv_latency_histogram_stats(BlockLatencyHistogram *hist, 419 bool *not_null, 420 BlockLatencyHistogramInfo **info) 421 { 422 *not_null = hist->bins != NULL; 423 if (*not_null) { 424 *info = g_new0(BlockLatencyHistogramInfo, 1); 425 426 (*info)->boundaries = uint64_list(hist->boundaries, hist->nbins - 1); 427 (*info)->bins = uint64_list(hist->bins, hist->nbins); 428 } 429 } 430 431 static void bdrv_query_blk_stats(BlockDeviceStats *ds, BlockBackend *blk) 432 { 433 BlockAcctStats *stats = blk_get_stats(blk); 434 BlockAcctTimedStats *ts = NULL; 435 436 ds->rd_bytes = stats->nr_bytes[BLOCK_ACCT_READ]; 437 ds->wr_bytes = stats->nr_bytes[BLOCK_ACCT_WRITE]; 438 ds->rd_operations = stats->nr_ops[BLOCK_ACCT_READ]; 439 ds->wr_operations = stats->nr_ops[BLOCK_ACCT_WRITE]; 440 441 ds->failed_rd_operations = stats->failed_ops[BLOCK_ACCT_READ]; 442 ds->failed_wr_operations = stats->failed_ops[BLOCK_ACCT_WRITE]; 443 ds->failed_flush_operations = stats->failed_ops[BLOCK_ACCT_FLUSH]; 444 445 ds->invalid_rd_operations = stats->invalid_ops[BLOCK_ACCT_READ]; 446 ds->invalid_wr_operations = stats->invalid_ops[BLOCK_ACCT_WRITE]; 447 ds->invalid_flush_operations = 448 stats->invalid_ops[BLOCK_ACCT_FLUSH]; 449 450 ds->rd_merged = stats->merged[BLOCK_ACCT_READ]; 451 ds->wr_merged = stats->merged[BLOCK_ACCT_WRITE]; 452 ds->flush_operations = stats->nr_ops[BLOCK_ACCT_FLUSH]; 453 ds->wr_total_time_ns = stats->total_time_ns[BLOCK_ACCT_WRITE]; 454 ds->rd_total_time_ns = stats->total_time_ns[BLOCK_ACCT_READ]; 455 ds->flush_total_time_ns = stats->total_time_ns[BLOCK_ACCT_FLUSH]; 456 457 ds->has_idle_time_ns = stats->last_access_time_ns > 0; 458 if (ds->has_idle_time_ns) { 459 ds->idle_time_ns = block_acct_idle_time_ns(stats); 460 } 461 462 ds->account_invalid = stats->account_invalid; 463 ds->account_failed = stats->account_failed; 464 465 while ((ts = block_acct_interval_next(stats, ts))) { 466 BlockDeviceTimedStatsList *timed_stats = 467 g_malloc0(sizeof(*timed_stats)); 468 BlockDeviceTimedStats *dev_stats = g_malloc0(sizeof(*dev_stats)); 469 timed_stats->next = ds->timed_stats; 470 timed_stats->value = dev_stats; 471 ds->timed_stats = timed_stats; 472 473 TimedAverage *rd = &ts->latency[BLOCK_ACCT_READ]; 474 TimedAverage *wr = &ts->latency[BLOCK_ACCT_WRITE]; 475 TimedAverage *fl = &ts->latency[BLOCK_ACCT_FLUSH]; 476 477 dev_stats->interval_length = ts->interval_length; 478 479 dev_stats->min_rd_latency_ns = timed_average_min(rd); 480 dev_stats->max_rd_latency_ns = timed_average_max(rd); 481 dev_stats->avg_rd_latency_ns = timed_average_avg(rd); 482 483 dev_stats->min_wr_latency_ns = timed_average_min(wr); 484 dev_stats->max_wr_latency_ns = timed_average_max(wr); 485 dev_stats->avg_wr_latency_ns = timed_average_avg(wr); 486 487 dev_stats->min_flush_latency_ns = timed_average_min(fl); 488 dev_stats->max_flush_latency_ns = timed_average_max(fl); 489 dev_stats->avg_flush_latency_ns = timed_average_avg(fl); 490 491 dev_stats->avg_rd_queue_depth = 492 block_acct_queue_depth(ts, BLOCK_ACCT_READ); 493 dev_stats->avg_wr_queue_depth = 494 block_acct_queue_depth(ts, BLOCK_ACCT_WRITE); 495 } 496 497 bdrv_latency_histogram_stats(&stats->latency_histogram[BLOCK_ACCT_READ], 498 &ds->has_rd_latency_histogram, 499 &ds->rd_latency_histogram); 500 bdrv_latency_histogram_stats(&stats->latency_histogram[BLOCK_ACCT_WRITE], 501 &ds->has_wr_latency_histogram, 502 &ds->wr_latency_histogram); 503 bdrv_latency_histogram_stats(&stats->latency_histogram[BLOCK_ACCT_FLUSH], 504 &ds->has_flush_latency_histogram, 505 &ds->flush_latency_histogram); 506 } 507 508 static BlockStats *bdrv_query_bds_stats(BlockDriverState *bs, 509 bool blk_level) 510 { 511 BlockStats *s = NULL; 512 513 s = g_malloc0(sizeof(*s)); 514 s->stats = g_malloc0(sizeof(*s->stats)); 515 516 if (!bs) { 517 return s; 518 } 519 520 /* Skip automatically inserted nodes that the user isn't aware of in 521 * a BlockBackend-level command. Stay at the exact node for a node-level 522 * command. */ 523 while (blk_level && bs->drv && bs->implicit) { 524 bs = backing_bs(bs); 525 assert(bs); 526 } 527 528 if (bdrv_get_node_name(bs)[0]) { 529 s->has_node_name = true; 530 s->node_name = g_strdup(bdrv_get_node_name(bs)); 531 } 532 533 s->stats->wr_highest_offset = stat64_get(&bs->wr_highest_offset); 534 535 if (bs->file) { 536 s->has_parent = true; 537 s->parent = bdrv_query_bds_stats(bs->file->bs, blk_level); 538 } 539 540 if (blk_level && bs->backing) { 541 s->has_backing = true; 542 s->backing = bdrv_query_bds_stats(bs->backing->bs, blk_level); 543 } 544 545 return s; 546 } 547 548 BlockInfoList *qmp_query_block(Error **errp) 549 { 550 BlockInfoList *head = NULL, **p_next = &head; 551 BlockBackend *blk; 552 Error *local_err = NULL; 553 554 for (blk = blk_all_next(NULL); blk; blk = blk_all_next(blk)) { 555 BlockInfoList *info; 556 557 if (!*blk_name(blk) && !blk_get_attached_dev(blk)) { 558 continue; 559 } 560 561 info = g_malloc0(sizeof(*info)); 562 bdrv_query_info(blk, &info->value, &local_err); 563 if (local_err) { 564 error_propagate(errp, local_err); 565 g_free(info); 566 qapi_free_BlockInfoList(head); 567 return NULL; 568 } 569 570 *p_next = info; 571 p_next = &info->next; 572 } 573 574 return head; 575 } 576 577 BlockStatsList *qmp_query_blockstats(bool has_query_nodes, 578 bool query_nodes, 579 Error **errp) 580 { 581 BlockStatsList *head = NULL, **p_next = &head; 582 BlockBackend *blk; 583 BlockDriverState *bs; 584 585 /* Just to be safe if query_nodes is not always initialized */ 586 if (has_query_nodes && query_nodes) { 587 for (bs = bdrv_next_node(NULL); bs; bs = bdrv_next_node(bs)) { 588 BlockStatsList *info = g_malloc0(sizeof(*info)); 589 AioContext *ctx = bdrv_get_aio_context(bs); 590 591 aio_context_acquire(ctx); 592 info->value = bdrv_query_bds_stats(bs, false); 593 aio_context_release(ctx); 594 595 *p_next = info; 596 p_next = &info->next; 597 } 598 } else { 599 for (blk = blk_all_next(NULL); blk; blk = blk_all_next(blk)) { 600 BlockStatsList *info; 601 AioContext *ctx = blk_get_aio_context(blk); 602 BlockStats *s; 603 char *qdev; 604 605 if (!*blk_name(blk) && !blk_get_attached_dev(blk)) { 606 continue; 607 } 608 609 aio_context_acquire(ctx); 610 s = bdrv_query_bds_stats(blk_bs(blk), true); 611 s->has_device = true; 612 s->device = g_strdup(blk_name(blk)); 613 614 qdev = blk_get_attached_dev_id(blk); 615 if (qdev && *qdev) { 616 s->has_qdev = true; 617 s->qdev = qdev; 618 } else { 619 g_free(qdev); 620 } 621 622 bdrv_query_blk_stats(s->stats, blk); 623 aio_context_release(ctx); 624 625 info = g_malloc0(sizeof(*info)); 626 info->value = s; 627 *p_next = info; 628 p_next = &info->next; 629 } 630 } 631 632 return head; 633 } 634 635 void bdrv_snapshot_dump(QEMUSnapshotInfo *sn) 636 { 637 char date_buf[128], clock_buf[128]; 638 struct tm tm; 639 time_t ti; 640 int64_t secs; 641 char *sizing = NULL; 642 643 if (!sn) { 644 qemu_printf("%-10s%-20s%7s%20s%15s", 645 "ID", "TAG", "VM SIZE", "DATE", "VM CLOCK"); 646 } else { 647 ti = sn->date_sec; 648 localtime_r(&ti, &tm); 649 strftime(date_buf, sizeof(date_buf), 650 "%Y-%m-%d %H:%M:%S", &tm); 651 secs = sn->vm_clock_nsec / 1000000000; 652 snprintf(clock_buf, sizeof(clock_buf), 653 "%02d:%02d:%02d.%03d", 654 (int)(secs / 3600), 655 (int)((secs / 60) % 60), 656 (int)(secs % 60), 657 (int)((sn->vm_clock_nsec / 1000000) % 1000)); 658 sizing = size_to_str(sn->vm_state_size); 659 qemu_printf("%-10s%-20s%7s%20s%15s", 660 sn->id_str, sn->name, 661 sizing, 662 date_buf, 663 clock_buf); 664 } 665 g_free(sizing); 666 } 667 668 static void dump_qdict(int indentation, QDict *dict); 669 static void dump_qlist(int indentation, QList *list); 670 671 static void dump_qobject(int comp_indent, QObject *obj) 672 { 673 switch (qobject_type(obj)) { 674 case QTYPE_QNUM: { 675 QNum *value = qobject_to(QNum, obj); 676 char *tmp = qnum_to_string(value); 677 qemu_printf("%s", tmp); 678 g_free(tmp); 679 break; 680 } 681 case QTYPE_QSTRING: { 682 QString *value = qobject_to(QString, obj); 683 qemu_printf("%s", qstring_get_str(value)); 684 break; 685 } 686 case QTYPE_QDICT: { 687 QDict *value = qobject_to(QDict, obj); 688 dump_qdict(comp_indent, value); 689 break; 690 } 691 case QTYPE_QLIST: { 692 QList *value = qobject_to(QList, obj); 693 dump_qlist(comp_indent, value); 694 break; 695 } 696 case QTYPE_QBOOL: { 697 QBool *value = qobject_to(QBool, obj); 698 qemu_printf("%s", qbool_get_bool(value) ? "true" : "false"); 699 break; 700 } 701 default: 702 abort(); 703 } 704 } 705 706 static void dump_qlist(int indentation, QList *list) 707 { 708 const QListEntry *entry; 709 int i = 0; 710 711 for (entry = qlist_first(list); entry; entry = qlist_next(entry), i++) { 712 QType type = qobject_type(entry->value); 713 bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); 714 qemu_printf("%*s[%i]:%c", indentation * 4, "", i, 715 composite ? '\n' : ' '); 716 dump_qobject(indentation + 1, entry->value); 717 if (!composite) { 718 qemu_printf("\n"); 719 } 720 } 721 } 722 723 static void dump_qdict(int indentation, QDict *dict) 724 { 725 const QDictEntry *entry; 726 727 for (entry = qdict_first(dict); entry; entry = qdict_next(dict, entry)) { 728 QType type = qobject_type(entry->value); 729 bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); 730 char *key = g_malloc(strlen(entry->key) + 1); 731 int i; 732 733 /* replace dashes with spaces in key (variable) names */ 734 for (i = 0; entry->key[i]; i++) { 735 key[i] = entry->key[i] == '-' ? ' ' : entry->key[i]; 736 } 737 key[i] = 0; 738 qemu_printf("%*s%s:%c", indentation * 4, "", key, 739 composite ? '\n' : ' '); 740 dump_qobject(indentation + 1, entry->value); 741 if (!composite) { 742 qemu_printf("\n"); 743 } 744 g_free(key); 745 } 746 } 747 748 void bdrv_image_info_specific_dump(ImageInfoSpecific *info_spec) 749 { 750 QObject *obj, *data; 751 Visitor *v = qobject_output_visitor_new(&obj); 752 753 visit_type_ImageInfoSpecific(v, NULL, &info_spec, &error_abort); 754 visit_complete(v, &obj); 755 data = qdict_get(qobject_to(QDict, obj), "data"); 756 dump_qobject(1, data); 757 qobject_unref(obj); 758 visit_free(v); 759 } 760 761 void bdrv_image_info_dump(ImageInfo *info) 762 { 763 char *size_buf, *dsize_buf; 764 if (!info->has_actual_size) { 765 dsize_buf = g_strdup("unavailable"); 766 } else { 767 dsize_buf = size_to_str(info->actual_size); 768 } 769 size_buf = size_to_str(info->virtual_size); 770 qemu_printf("image: %s\n" 771 "file format: %s\n" 772 "virtual size: %s (%" PRId64 " bytes)\n" 773 "disk size: %s\n", 774 info->filename, info->format, size_buf, 775 info->virtual_size, 776 dsize_buf); 777 g_free(size_buf); 778 g_free(dsize_buf); 779 780 if (info->has_encrypted && info->encrypted) { 781 qemu_printf("encrypted: yes\n"); 782 } 783 784 if (info->has_cluster_size) { 785 qemu_printf("cluster_size: %" PRId64 "\n", 786 info->cluster_size); 787 } 788 789 if (info->has_dirty_flag && info->dirty_flag) { 790 qemu_printf("cleanly shut down: no\n"); 791 } 792 793 if (info->has_backing_filename) { 794 qemu_printf("backing file: %s", info->backing_filename); 795 if (!info->has_full_backing_filename) { 796 qemu_printf(" (cannot determine actual path)"); 797 } else if (strcmp(info->backing_filename, 798 info->full_backing_filename) != 0) { 799 qemu_printf(" (actual path: %s)", info->full_backing_filename); 800 } 801 qemu_printf("\n"); 802 if (info->has_backing_filename_format) { 803 qemu_printf("backing file format: %s\n", 804 info->backing_filename_format); 805 } 806 } 807 808 if (info->has_snapshots) { 809 SnapshotInfoList *elem; 810 811 qemu_printf("Snapshot list:\n"); 812 bdrv_snapshot_dump(NULL); 813 qemu_printf("\n"); 814 815 /* Ideally bdrv_snapshot_dump() would operate on SnapshotInfoList but 816 * we convert to the block layer's native QEMUSnapshotInfo for now. 817 */ 818 for (elem = info->snapshots; elem; elem = elem->next) { 819 QEMUSnapshotInfo sn = { 820 .vm_state_size = elem->value->vm_state_size, 821 .date_sec = elem->value->date_sec, 822 .date_nsec = elem->value->date_nsec, 823 .vm_clock_nsec = elem->value->vm_clock_sec * 1000000000ULL + 824 elem->value->vm_clock_nsec, 825 }; 826 827 pstrcpy(sn.id_str, sizeof(sn.id_str), elem->value->id); 828 pstrcpy(sn.name, sizeof(sn.name), elem->value->name); 829 bdrv_snapshot_dump(&sn); 830 qemu_printf("\n"); 831 } 832 } 833 834 if (info->has_format_specific) { 835 qemu_printf("Format specific information:\n"); 836 bdrv_image_info_specific_dump(info->format_specific); 837 } 838 } 839