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/qobject-output-visitor.h" 33 #include "qapi/qmp/types.h" 34 #include "sysemu/block-backend.h" 35 #include "qemu/cutils.h" 36 37 BlockDeviceInfo *bdrv_block_device_info(BlockBackend *blk, 38 BlockDriverState *bs, Error **errp) 39 { 40 ImageInfo **p_image_info; 41 BlockDriverState *bs0; 42 BlockDeviceInfo *info = g_malloc0(sizeof(*info)); 43 44 info->file = g_strdup(bs->filename); 45 info->ro = bs->read_only; 46 info->drv = g_strdup(bs->drv->format_name); 47 info->encrypted = bs->encrypted; 48 info->encryption_key_missing = false; 49 50 info->cache = g_new(BlockdevCacheInfo, 1); 51 *info->cache = (BlockdevCacheInfo) { 52 .writeback = blk ? blk_enable_write_cache(blk) : true, 53 .direct = !!(bs->open_flags & BDRV_O_NOCACHE), 54 .no_flush = !!(bs->open_flags & BDRV_O_NO_FLUSH), 55 }; 56 57 if (bs->node_name[0]) { 58 info->has_node_name = true; 59 info->node_name = g_strdup(bs->node_name); 60 } 61 62 if (bs->backing_file[0]) { 63 info->has_backing_file = true; 64 info->backing_file = g_strdup(bs->backing_file); 65 } 66 67 info->detect_zeroes = bs->detect_zeroes; 68 69 if (blk && blk_get_public(blk)->throttle_state) { 70 ThrottleConfig cfg; 71 72 throttle_group_get_config(blk, &cfg); 73 74 info->bps = cfg.buckets[THROTTLE_BPS_TOTAL].avg; 75 info->bps_rd = cfg.buckets[THROTTLE_BPS_READ].avg; 76 info->bps_wr = cfg.buckets[THROTTLE_BPS_WRITE].avg; 77 78 info->iops = cfg.buckets[THROTTLE_OPS_TOTAL].avg; 79 info->iops_rd = cfg.buckets[THROTTLE_OPS_READ].avg; 80 info->iops_wr = cfg.buckets[THROTTLE_OPS_WRITE].avg; 81 82 info->has_bps_max = cfg.buckets[THROTTLE_BPS_TOTAL].max; 83 info->bps_max = cfg.buckets[THROTTLE_BPS_TOTAL].max; 84 info->has_bps_rd_max = cfg.buckets[THROTTLE_BPS_READ].max; 85 info->bps_rd_max = cfg.buckets[THROTTLE_BPS_READ].max; 86 info->has_bps_wr_max = cfg.buckets[THROTTLE_BPS_WRITE].max; 87 info->bps_wr_max = cfg.buckets[THROTTLE_BPS_WRITE].max; 88 89 info->has_iops_max = cfg.buckets[THROTTLE_OPS_TOTAL].max; 90 info->iops_max = cfg.buckets[THROTTLE_OPS_TOTAL].max; 91 info->has_iops_rd_max = cfg.buckets[THROTTLE_OPS_READ].max; 92 info->iops_rd_max = cfg.buckets[THROTTLE_OPS_READ].max; 93 info->has_iops_wr_max = cfg.buckets[THROTTLE_OPS_WRITE].max; 94 info->iops_wr_max = cfg.buckets[THROTTLE_OPS_WRITE].max; 95 96 info->has_bps_max_length = info->has_bps_max; 97 info->bps_max_length = 98 cfg.buckets[THROTTLE_BPS_TOTAL].burst_length; 99 info->has_bps_rd_max_length = info->has_bps_rd_max; 100 info->bps_rd_max_length = 101 cfg.buckets[THROTTLE_BPS_READ].burst_length; 102 info->has_bps_wr_max_length = info->has_bps_wr_max; 103 info->bps_wr_max_length = 104 cfg.buckets[THROTTLE_BPS_WRITE].burst_length; 105 106 info->has_iops_max_length = info->has_iops_max; 107 info->iops_max_length = 108 cfg.buckets[THROTTLE_OPS_TOTAL].burst_length; 109 info->has_iops_rd_max_length = info->has_iops_rd_max; 110 info->iops_rd_max_length = 111 cfg.buckets[THROTTLE_OPS_READ].burst_length; 112 info->has_iops_wr_max_length = info->has_iops_wr_max; 113 info->iops_wr_max_length = 114 cfg.buckets[THROTTLE_OPS_WRITE].burst_length; 115 116 info->has_iops_size = cfg.op_size; 117 info->iops_size = cfg.op_size; 118 119 info->has_group = true; 120 info->group = g_strdup(throttle_group_get_name(blk)); 121 } 122 123 info->write_threshold = bdrv_write_threshold_get(bs); 124 125 bs0 = bs; 126 p_image_info = &info->image; 127 info->backing_file_depth = 0; 128 while (1) { 129 Error *local_err = NULL; 130 bdrv_query_image_info(bs0, p_image_info, &local_err); 131 if (local_err) { 132 error_propagate(errp, local_err); 133 qapi_free_BlockDeviceInfo(info); 134 return NULL; 135 } 136 137 if (bs0->drv && bs0->backing) { 138 info->backing_file_depth++; 139 bs0 = bs0->backing->bs; 140 (*p_image_info)->has_backing_image = true; 141 p_image_info = &((*p_image_info)->backing_image); 142 } else { 143 break; 144 } 145 146 /* Skip automatically inserted nodes that the user isn't aware of for 147 * query-block (blk != NULL), but not for query-named-block-nodes */ 148 while (blk && bs0 && bs0->drv && bs0->implicit) { 149 bs0 = backing_bs(bs0); 150 } 151 } 152 153 return info; 154 } 155 156 /* 157 * Returns 0 on success, with *p_list either set to describe snapshot 158 * information, or NULL because there are no snapshots. Returns -errno on 159 * error, with *p_list untouched. 160 */ 161 int bdrv_query_snapshot_info_list(BlockDriverState *bs, 162 SnapshotInfoList **p_list, 163 Error **errp) 164 { 165 int i, sn_count; 166 QEMUSnapshotInfo *sn_tab = NULL; 167 SnapshotInfoList *info_list, *cur_item = NULL, *head = NULL; 168 SnapshotInfo *info; 169 170 sn_count = bdrv_snapshot_list(bs, &sn_tab); 171 if (sn_count < 0) { 172 const char *dev = bdrv_get_device_name(bs); 173 switch (sn_count) { 174 case -ENOMEDIUM: 175 error_setg(errp, "Device '%s' is not inserted", dev); 176 break; 177 case -ENOTSUP: 178 error_setg(errp, 179 "Device '%s' does not support internal snapshots", 180 dev); 181 break; 182 default: 183 error_setg_errno(errp, -sn_count, 184 "Can't list snapshots of device '%s'", dev); 185 break; 186 } 187 return sn_count; 188 } 189 190 for (i = 0; i < sn_count; i++) { 191 info = g_new0(SnapshotInfo, 1); 192 info->id = g_strdup(sn_tab[i].id_str); 193 info->name = g_strdup(sn_tab[i].name); 194 info->vm_state_size = sn_tab[i].vm_state_size; 195 info->date_sec = sn_tab[i].date_sec; 196 info->date_nsec = sn_tab[i].date_nsec; 197 info->vm_clock_sec = sn_tab[i].vm_clock_nsec / 1000000000; 198 info->vm_clock_nsec = sn_tab[i].vm_clock_nsec % 1000000000; 199 200 info_list = g_new0(SnapshotInfoList, 1); 201 info_list->value = info; 202 203 /* XXX: waiting for the qapi to support qemu-queue.h types */ 204 if (!cur_item) { 205 head = cur_item = info_list; 206 } else { 207 cur_item->next = info_list; 208 cur_item = info_list; 209 } 210 211 } 212 213 g_free(sn_tab); 214 *p_list = head; 215 return 0; 216 } 217 218 /** 219 * bdrv_query_image_info: 220 * @bs: block device to examine 221 * @p_info: location to store image information 222 * @errp: location to store error information 223 * 224 * Store "flat" image information in @p_info. 225 * 226 * "Flat" means it does *not* query backing image information, 227 * i.e. (*pinfo)->has_backing_image will be set to false and 228 * (*pinfo)->backing_image to NULL even when the image does in fact have 229 * a backing image. 230 * 231 * @p_info will be set only on success. On error, store error in @errp. 232 */ 233 void bdrv_query_image_info(BlockDriverState *bs, 234 ImageInfo **p_info, 235 Error **errp) 236 { 237 int64_t size; 238 const char *backing_filename; 239 BlockDriverInfo bdi; 240 int ret; 241 Error *err = NULL; 242 ImageInfo *info; 243 244 aio_context_acquire(bdrv_get_aio_context(bs)); 245 246 size = bdrv_getlength(bs); 247 if (size < 0) { 248 error_setg_errno(errp, -size, "Can't get image size '%s'", 249 bs->exact_filename); 250 goto out; 251 } 252 253 info = g_new0(ImageInfo, 1); 254 info->filename = g_strdup(bs->filename); 255 info->format = g_strdup(bdrv_get_format_name(bs)); 256 info->virtual_size = size; 257 info->actual_size = bdrv_get_allocated_file_size(bs); 258 info->has_actual_size = info->actual_size >= 0; 259 if (bdrv_is_encrypted(bs)) { 260 info->encrypted = true; 261 info->has_encrypted = true; 262 } 263 if (bdrv_get_info(bs, &bdi) >= 0) { 264 if (bdi.cluster_size != 0) { 265 info->cluster_size = bdi.cluster_size; 266 info->has_cluster_size = true; 267 } 268 info->dirty_flag = bdi.is_dirty; 269 info->has_dirty_flag = true; 270 } 271 info->format_specific = bdrv_get_specific_info(bs); 272 info->has_format_specific = info->format_specific != NULL; 273 274 backing_filename = bs->backing_file; 275 if (backing_filename[0] != '\0') { 276 char *backing_filename2 = g_malloc0(PATH_MAX); 277 info->backing_filename = g_strdup(backing_filename); 278 info->has_backing_filename = true; 279 bdrv_get_full_backing_filename(bs, backing_filename2, PATH_MAX, &err); 280 if (err) { 281 /* Can't reconstruct the full backing filename, so we must omit 282 * this field and apply a Best Effort to this query. */ 283 g_free(backing_filename2); 284 backing_filename2 = NULL; 285 error_free(err); 286 err = NULL; 287 } 288 289 /* Always report the full_backing_filename if present, even if it's the 290 * same as backing_filename. That they are same is useful info. */ 291 if (backing_filename2) { 292 info->full_backing_filename = g_strdup(backing_filename2); 293 info->has_full_backing_filename = true; 294 } 295 296 if (bs->backing_format[0]) { 297 info->backing_filename_format = g_strdup(bs->backing_format); 298 info->has_backing_filename_format = true; 299 } 300 g_free(backing_filename2); 301 } 302 303 ret = bdrv_query_snapshot_info_list(bs, &info->snapshots, &err); 304 switch (ret) { 305 case 0: 306 if (info->snapshots) { 307 info->has_snapshots = true; 308 } 309 break; 310 /* recoverable error */ 311 case -ENOMEDIUM: 312 case -ENOTSUP: 313 error_free(err); 314 break; 315 default: 316 error_propagate(errp, err); 317 qapi_free_ImageInfo(info); 318 goto out; 319 } 320 321 *p_info = info; 322 323 out: 324 aio_context_release(bdrv_get_aio_context(bs)); 325 } 326 327 /* @p_info will be set only on success. */ 328 static void bdrv_query_info(BlockBackend *blk, BlockInfo **p_info, 329 Error **errp) 330 { 331 BlockInfo *info = g_malloc0(sizeof(*info)); 332 BlockDriverState *bs = blk_bs(blk); 333 char *qdev; 334 335 /* Skip automatically inserted nodes that the user isn't aware of */ 336 while (bs && bs->drv && bs->implicit) { 337 bs = backing_bs(bs); 338 } 339 340 info->device = g_strdup(blk_name(blk)); 341 info->type = g_strdup("unknown"); 342 info->locked = blk_dev_is_medium_locked(blk); 343 info->removable = blk_dev_has_removable_media(blk); 344 345 qdev = blk_get_attached_dev_id(blk); 346 if (qdev && *qdev) { 347 info->has_qdev = true; 348 info->qdev = qdev; 349 } else { 350 g_free(qdev); 351 } 352 353 if (blk_dev_has_tray(blk)) { 354 info->has_tray_open = true; 355 info->tray_open = blk_dev_is_tray_open(blk); 356 } 357 358 if (blk_iostatus_is_enabled(blk)) { 359 info->has_io_status = true; 360 info->io_status = blk_iostatus(blk); 361 } 362 363 if (bs && !QLIST_EMPTY(&bs->dirty_bitmaps)) { 364 info->has_dirty_bitmaps = true; 365 info->dirty_bitmaps = bdrv_query_dirty_bitmaps(bs); 366 } 367 368 if (bs && bs->drv) { 369 info->has_inserted = true; 370 info->inserted = bdrv_block_device_info(blk, bs, errp); 371 if (info->inserted == NULL) { 372 goto err; 373 } 374 } 375 376 *p_info = info; 377 return; 378 379 err: 380 qapi_free_BlockInfo(info); 381 } 382 383 static void bdrv_query_blk_stats(BlockDeviceStats *ds, BlockBackend *blk) 384 { 385 BlockAcctStats *stats = blk_get_stats(blk); 386 BlockAcctTimedStats *ts = NULL; 387 388 ds->rd_bytes = stats->nr_bytes[BLOCK_ACCT_READ]; 389 ds->wr_bytes = stats->nr_bytes[BLOCK_ACCT_WRITE]; 390 ds->rd_operations = stats->nr_ops[BLOCK_ACCT_READ]; 391 ds->wr_operations = stats->nr_ops[BLOCK_ACCT_WRITE]; 392 393 ds->failed_rd_operations = stats->failed_ops[BLOCK_ACCT_READ]; 394 ds->failed_wr_operations = stats->failed_ops[BLOCK_ACCT_WRITE]; 395 ds->failed_flush_operations = stats->failed_ops[BLOCK_ACCT_FLUSH]; 396 397 ds->invalid_rd_operations = stats->invalid_ops[BLOCK_ACCT_READ]; 398 ds->invalid_wr_operations = stats->invalid_ops[BLOCK_ACCT_WRITE]; 399 ds->invalid_flush_operations = 400 stats->invalid_ops[BLOCK_ACCT_FLUSH]; 401 402 ds->rd_merged = stats->merged[BLOCK_ACCT_READ]; 403 ds->wr_merged = stats->merged[BLOCK_ACCT_WRITE]; 404 ds->flush_operations = stats->nr_ops[BLOCK_ACCT_FLUSH]; 405 ds->wr_total_time_ns = stats->total_time_ns[BLOCK_ACCT_WRITE]; 406 ds->rd_total_time_ns = stats->total_time_ns[BLOCK_ACCT_READ]; 407 ds->flush_total_time_ns = stats->total_time_ns[BLOCK_ACCT_FLUSH]; 408 409 ds->has_idle_time_ns = stats->last_access_time_ns > 0; 410 if (ds->has_idle_time_ns) { 411 ds->idle_time_ns = block_acct_idle_time_ns(stats); 412 } 413 414 ds->account_invalid = stats->account_invalid; 415 ds->account_failed = stats->account_failed; 416 417 while ((ts = block_acct_interval_next(stats, ts))) { 418 BlockDeviceTimedStatsList *timed_stats = 419 g_malloc0(sizeof(*timed_stats)); 420 BlockDeviceTimedStats *dev_stats = g_malloc0(sizeof(*dev_stats)); 421 timed_stats->next = ds->timed_stats; 422 timed_stats->value = dev_stats; 423 ds->timed_stats = timed_stats; 424 425 TimedAverage *rd = &ts->latency[BLOCK_ACCT_READ]; 426 TimedAverage *wr = &ts->latency[BLOCK_ACCT_WRITE]; 427 TimedAverage *fl = &ts->latency[BLOCK_ACCT_FLUSH]; 428 429 dev_stats->interval_length = ts->interval_length; 430 431 dev_stats->min_rd_latency_ns = timed_average_min(rd); 432 dev_stats->max_rd_latency_ns = timed_average_max(rd); 433 dev_stats->avg_rd_latency_ns = timed_average_avg(rd); 434 435 dev_stats->min_wr_latency_ns = timed_average_min(wr); 436 dev_stats->max_wr_latency_ns = timed_average_max(wr); 437 dev_stats->avg_wr_latency_ns = timed_average_avg(wr); 438 439 dev_stats->min_flush_latency_ns = timed_average_min(fl); 440 dev_stats->max_flush_latency_ns = timed_average_max(fl); 441 dev_stats->avg_flush_latency_ns = timed_average_avg(fl); 442 443 dev_stats->avg_rd_queue_depth = 444 block_acct_queue_depth(ts, BLOCK_ACCT_READ); 445 dev_stats->avg_wr_queue_depth = 446 block_acct_queue_depth(ts, BLOCK_ACCT_WRITE); 447 } 448 } 449 450 static BlockStats *bdrv_query_bds_stats(BlockDriverState *bs, 451 bool blk_level) 452 { 453 BlockStats *s = NULL; 454 455 s = g_malloc0(sizeof(*s)); 456 s->stats = g_malloc0(sizeof(*s->stats)); 457 458 if (!bs) { 459 return s; 460 } 461 462 /* Skip automatically inserted nodes that the user isn't aware of in 463 * a BlockBackend-level command. Stay at the exact node for a node-level 464 * command. */ 465 while (blk_level && bs->drv && bs->implicit) { 466 bs = backing_bs(bs); 467 assert(bs); 468 } 469 470 if (bdrv_get_node_name(bs)[0]) { 471 s->has_node_name = true; 472 s->node_name = g_strdup(bdrv_get_node_name(bs)); 473 } 474 475 s->stats->wr_highest_offset = stat64_get(&bs->wr_highest_offset); 476 477 if (bs->file) { 478 s->has_parent = true; 479 s->parent = bdrv_query_bds_stats(bs->file->bs, blk_level); 480 } 481 482 if (blk_level && bs->backing) { 483 s->has_backing = true; 484 s->backing = bdrv_query_bds_stats(bs->backing->bs, blk_level); 485 } 486 487 return s; 488 } 489 490 BlockInfoList *qmp_query_block(Error **errp) 491 { 492 BlockInfoList *head = NULL, **p_next = &head; 493 BlockBackend *blk; 494 Error *local_err = NULL; 495 496 for (blk = blk_all_next(NULL); blk; blk = blk_all_next(blk)) { 497 BlockInfoList *info; 498 499 if (!*blk_name(blk) && !blk_get_attached_dev(blk)) { 500 continue; 501 } 502 503 info = g_malloc0(sizeof(*info)); 504 bdrv_query_info(blk, &info->value, &local_err); 505 if (local_err) { 506 error_propagate(errp, local_err); 507 g_free(info); 508 qapi_free_BlockInfoList(head); 509 return NULL; 510 } 511 512 *p_next = info; 513 p_next = &info->next; 514 } 515 516 return head; 517 } 518 519 BlockStatsList *qmp_query_blockstats(bool has_query_nodes, 520 bool query_nodes, 521 Error **errp) 522 { 523 BlockStatsList *head = NULL, **p_next = &head; 524 BlockBackend *blk; 525 BlockDriverState *bs; 526 527 /* Just to be safe if query_nodes is not always initialized */ 528 if (has_query_nodes && query_nodes) { 529 for (bs = bdrv_next_node(NULL); bs; bs = bdrv_next_node(bs)) { 530 BlockStatsList *info = g_malloc0(sizeof(*info)); 531 AioContext *ctx = bdrv_get_aio_context(bs); 532 533 aio_context_acquire(ctx); 534 info->value = bdrv_query_bds_stats(bs, false); 535 aio_context_release(ctx); 536 537 *p_next = info; 538 p_next = &info->next; 539 } 540 } else { 541 for (blk = blk_next(NULL); blk; blk = blk_next(blk)) { 542 BlockStatsList *info = g_malloc0(sizeof(*info)); 543 AioContext *ctx = blk_get_aio_context(blk); 544 BlockStats *s; 545 546 aio_context_acquire(ctx); 547 s = bdrv_query_bds_stats(blk_bs(blk), true); 548 s->has_device = true; 549 s->device = g_strdup(blk_name(blk)); 550 bdrv_query_blk_stats(s->stats, blk); 551 aio_context_release(ctx); 552 553 info->value = s; 554 *p_next = info; 555 p_next = &info->next; 556 } 557 } 558 559 return head; 560 } 561 562 #define NB_SUFFIXES 4 563 564 static char *get_human_readable_size(char *buf, int buf_size, int64_t size) 565 { 566 static const char suffixes[NB_SUFFIXES] = {'K', 'M', 'G', 'T'}; 567 int64_t base; 568 int i; 569 570 if (size <= 999) { 571 snprintf(buf, buf_size, "%" PRId64, size); 572 } else { 573 base = 1024; 574 for (i = 0; i < NB_SUFFIXES; i++) { 575 if (size < (10 * base)) { 576 snprintf(buf, buf_size, "%0.1f%c", 577 (double)size / base, 578 suffixes[i]); 579 break; 580 } else if (size < (1000 * base) || i == (NB_SUFFIXES - 1)) { 581 snprintf(buf, buf_size, "%" PRId64 "%c", 582 ((size + (base >> 1)) / base), 583 suffixes[i]); 584 break; 585 } 586 base = base * 1024; 587 } 588 } 589 return buf; 590 } 591 592 void bdrv_snapshot_dump(fprintf_function func_fprintf, void *f, 593 QEMUSnapshotInfo *sn) 594 { 595 char buf1[128], date_buf[128], clock_buf[128]; 596 struct tm tm; 597 time_t ti; 598 int64_t secs; 599 600 if (!sn) { 601 func_fprintf(f, 602 "%-10s%-20s%7s%20s%15s", 603 "ID", "TAG", "VM SIZE", "DATE", "VM CLOCK"); 604 } else { 605 ti = sn->date_sec; 606 localtime_r(&ti, &tm); 607 strftime(date_buf, sizeof(date_buf), 608 "%Y-%m-%d %H:%M:%S", &tm); 609 secs = sn->vm_clock_nsec / 1000000000; 610 snprintf(clock_buf, sizeof(clock_buf), 611 "%02d:%02d:%02d.%03d", 612 (int)(secs / 3600), 613 (int)((secs / 60) % 60), 614 (int)(secs % 60), 615 (int)((sn->vm_clock_nsec / 1000000) % 1000)); 616 func_fprintf(f, 617 "%-10s%-20s%7s%20s%15s", 618 sn->id_str, sn->name, 619 get_human_readable_size(buf1, sizeof(buf1), 620 sn->vm_state_size), 621 date_buf, 622 clock_buf); 623 } 624 } 625 626 static void dump_qdict(fprintf_function func_fprintf, void *f, int indentation, 627 QDict *dict); 628 static void dump_qlist(fprintf_function func_fprintf, void *f, int indentation, 629 QList *list); 630 631 static void dump_qobject(fprintf_function func_fprintf, void *f, 632 int comp_indent, QObject *obj) 633 { 634 switch (qobject_type(obj)) { 635 case QTYPE_QNUM: { 636 QNum *value = qobject_to_qnum(obj); 637 char *tmp = qnum_to_string(value); 638 func_fprintf(f, "%s", tmp); 639 g_free(tmp); 640 break; 641 } 642 case QTYPE_QSTRING: { 643 QString *value = qobject_to_qstring(obj); 644 func_fprintf(f, "%s", qstring_get_str(value)); 645 break; 646 } 647 case QTYPE_QDICT: { 648 QDict *value = qobject_to_qdict(obj); 649 dump_qdict(func_fprintf, f, comp_indent, value); 650 break; 651 } 652 case QTYPE_QLIST: { 653 QList *value = qobject_to_qlist(obj); 654 dump_qlist(func_fprintf, f, comp_indent, value); 655 break; 656 } 657 case QTYPE_QBOOL: { 658 QBool *value = qobject_to_qbool(obj); 659 func_fprintf(f, "%s", qbool_get_bool(value) ? "true" : "false"); 660 break; 661 } 662 default: 663 abort(); 664 } 665 } 666 667 static void dump_qlist(fprintf_function func_fprintf, void *f, int indentation, 668 QList *list) 669 { 670 const QListEntry *entry; 671 int i = 0; 672 673 for (entry = qlist_first(list); entry; entry = qlist_next(entry), i++) { 674 QType type = qobject_type(entry->value); 675 bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); 676 func_fprintf(f, "%*s[%i]:%c", indentation * 4, "", i, 677 composite ? '\n' : ' '); 678 dump_qobject(func_fprintf, f, indentation + 1, entry->value); 679 if (!composite) { 680 func_fprintf(f, "\n"); 681 } 682 } 683 } 684 685 static void dump_qdict(fprintf_function func_fprintf, void *f, int indentation, 686 QDict *dict) 687 { 688 const QDictEntry *entry; 689 690 for (entry = qdict_first(dict); entry; entry = qdict_next(dict, entry)) { 691 QType type = qobject_type(entry->value); 692 bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); 693 char *key = g_malloc(strlen(entry->key) + 1); 694 int i; 695 696 /* replace dashes with spaces in key (variable) names */ 697 for (i = 0; entry->key[i]; i++) { 698 key[i] = entry->key[i] == '-' ? ' ' : entry->key[i]; 699 } 700 key[i] = 0; 701 func_fprintf(f, "%*s%s:%c", indentation * 4, "", key, 702 composite ? '\n' : ' '); 703 dump_qobject(func_fprintf, f, indentation + 1, entry->value); 704 if (!composite) { 705 func_fprintf(f, "\n"); 706 } 707 g_free(key); 708 } 709 } 710 711 void bdrv_image_info_specific_dump(fprintf_function func_fprintf, void *f, 712 ImageInfoSpecific *info_spec) 713 { 714 QObject *obj, *data; 715 Visitor *v = qobject_output_visitor_new(&obj); 716 717 visit_type_ImageInfoSpecific(v, NULL, &info_spec, &error_abort); 718 visit_complete(v, &obj); 719 data = qdict_get(qobject_to_qdict(obj), "data"); 720 dump_qobject(func_fprintf, f, 1, data); 721 qobject_decref(obj); 722 visit_free(v); 723 } 724 725 void bdrv_image_info_dump(fprintf_function func_fprintf, void *f, 726 ImageInfo *info) 727 { 728 char size_buf[128], dsize_buf[128]; 729 if (!info->has_actual_size) { 730 snprintf(dsize_buf, sizeof(dsize_buf), "unavailable"); 731 } else { 732 get_human_readable_size(dsize_buf, sizeof(dsize_buf), 733 info->actual_size); 734 } 735 get_human_readable_size(size_buf, sizeof(size_buf), info->virtual_size); 736 func_fprintf(f, 737 "image: %s\n" 738 "file format: %s\n" 739 "virtual size: %s (%" PRId64 " bytes)\n" 740 "disk size: %s\n", 741 info->filename, info->format, size_buf, 742 info->virtual_size, 743 dsize_buf); 744 745 if (info->has_encrypted && info->encrypted) { 746 func_fprintf(f, "encrypted: yes\n"); 747 } 748 749 if (info->has_cluster_size) { 750 func_fprintf(f, "cluster_size: %" PRId64 "\n", 751 info->cluster_size); 752 } 753 754 if (info->has_dirty_flag && info->dirty_flag) { 755 func_fprintf(f, "cleanly shut down: no\n"); 756 } 757 758 if (info->has_backing_filename) { 759 func_fprintf(f, "backing file: %s", info->backing_filename); 760 if (!info->has_full_backing_filename) { 761 func_fprintf(f, " (cannot determine actual path)"); 762 } else if (strcmp(info->backing_filename, 763 info->full_backing_filename) != 0) { 764 func_fprintf(f, " (actual path: %s)", info->full_backing_filename); 765 } 766 func_fprintf(f, "\n"); 767 if (info->has_backing_filename_format) { 768 func_fprintf(f, "backing file format: %s\n", 769 info->backing_filename_format); 770 } 771 } 772 773 if (info->has_snapshots) { 774 SnapshotInfoList *elem; 775 776 func_fprintf(f, "Snapshot list:\n"); 777 bdrv_snapshot_dump(func_fprintf, f, NULL); 778 func_fprintf(f, "\n"); 779 780 /* Ideally bdrv_snapshot_dump() would operate on SnapshotInfoList but 781 * we convert to the block layer's native QEMUSnapshotInfo for now. 782 */ 783 for (elem = info->snapshots; elem; elem = elem->next) { 784 QEMUSnapshotInfo sn = { 785 .vm_state_size = elem->value->vm_state_size, 786 .date_sec = elem->value->date_sec, 787 .date_nsec = elem->value->date_nsec, 788 .vm_clock_nsec = elem->value->vm_clock_sec * 1000000000ULL + 789 elem->value->vm_clock_nsec, 790 }; 791 792 pstrcpy(sn.id_str, sizeof(sn.id_str), elem->value->id); 793 pstrcpy(sn.name, sizeof(sn.name), elem->value->name); 794 bdrv_snapshot_dump(func_fprintf, f, &sn); 795 func_fprintf(f, "\n"); 796 } 797 } 798 799 if (info->has_format_specific) { 800 func_fprintf(f, "Format specific information:\n"); 801 bdrv_image_info_specific_dump(func_fprintf, f, info->format_specific); 802 } 803 } 804