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