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