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(BlockDriverState *bs, Error **errp) 38 { 39 ImageInfo **p_image_info; 40 BlockDriverState *bs0; 41 BlockDeviceInfo *info = g_malloc0(sizeof(*info)); 42 43 info->file = g_strdup(bs->filename); 44 info->ro = bs->read_only; 45 info->drv = g_strdup(bs->drv->format_name); 46 info->encrypted = bs->encrypted; 47 info->encryption_key_missing = bdrv_key_required(bs); 48 49 info->cache = g_new(BlockdevCacheInfo, 1); 50 *info->cache = (BlockdevCacheInfo) { 51 .writeback = bdrv_enable_write_cache(bs), 52 .direct = !!(bs->open_flags & BDRV_O_NOCACHE), 53 .no_flush = !!(bs->open_flags & BDRV_O_NO_FLUSH), 54 }; 55 56 if (bs->node_name[0]) { 57 info->has_node_name = true; 58 info->node_name = g_strdup(bs->node_name); 59 } 60 61 if (bs->backing_file[0]) { 62 info->has_backing_file = true; 63 info->backing_file = g_strdup(bs->backing_file); 64 } 65 66 info->backing_file_depth = bdrv_get_backing_file_depth(bs); 67 info->detect_zeroes = bs->detect_zeroes; 68 69 if (bs->throttle_state) { 70 ThrottleConfig cfg; 71 72 throttle_group_get_config(bs, &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(bs)); 121 } 122 123 info->write_threshold = bdrv_write_threshold_get(bs); 124 125 bs0 = bs; 126 p_image_info = &info->image; 127 while (1) { 128 Error *local_err = NULL; 129 bdrv_query_image_info(bs0, p_image_info, &local_err); 130 if (local_err) { 131 error_propagate(errp, local_err); 132 qapi_free_BlockDeviceInfo(info); 133 return NULL; 134 } 135 if (bs0->drv && bs0->backing) { 136 bs0 = bs0->backing->bs; 137 (*p_image_info)->has_backing_image = true; 138 p_image_info = &((*p_image_info)->backing_image); 139 } else { 140 break; 141 } 142 } 143 144 return info; 145 } 146 147 /* 148 * Returns 0 on success, with *p_list either set to describe snapshot 149 * information, or NULL because there are no snapshots. Returns -errno on 150 * error, with *p_list untouched. 151 */ 152 int bdrv_query_snapshot_info_list(BlockDriverState *bs, 153 SnapshotInfoList **p_list, 154 Error **errp) 155 { 156 int i, sn_count; 157 QEMUSnapshotInfo *sn_tab = NULL; 158 SnapshotInfoList *info_list, *cur_item = NULL, *head = NULL; 159 SnapshotInfo *info; 160 161 sn_count = bdrv_snapshot_list(bs, &sn_tab); 162 if (sn_count < 0) { 163 const char *dev = bdrv_get_device_name(bs); 164 switch (sn_count) { 165 case -ENOMEDIUM: 166 error_setg(errp, "Device '%s' is not inserted", dev); 167 break; 168 case -ENOTSUP: 169 error_setg(errp, 170 "Device '%s' does not support internal snapshots", 171 dev); 172 break; 173 default: 174 error_setg_errno(errp, -sn_count, 175 "Can't list snapshots of device '%s'", dev); 176 break; 177 } 178 return sn_count; 179 } 180 181 for (i = 0; i < sn_count; i++) { 182 info = g_new0(SnapshotInfo, 1); 183 info->id = g_strdup(sn_tab[i].id_str); 184 info->name = g_strdup(sn_tab[i].name); 185 info->vm_state_size = sn_tab[i].vm_state_size; 186 info->date_sec = sn_tab[i].date_sec; 187 info->date_nsec = sn_tab[i].date_nsec; 188 info->vm_clock_sec = sn_tab[i].vm_clock_nsec / 1000000000; 189 info->vm_clock_nsec = sn_tab[i].vm_clock_nsec % 1000000000; 190 191 info_list = g_new0(SnapshotInfoList, 1); 192 info_list->value = info; 193 194 /* XXX: waiting for the qapi to support qemu-queue.h types */ 195 if (!cur_item) { 196 head = cur_item = info_list; 197 } else { 198 cur_item->next = info_list; 199 cur_item = info_list; 200 } 201 202 } 203 204 g_free(sn_tab); 205 *p_list = head; 206 return 0; 207 } 208 209 /** 210 * bdrv_query_image_info: 211 * @bs: block device to examine 212 * @p_info: location to store image information 213 * @errp: location to store error information 214 * 215 * Store "flat" image information in @p_info. 216 * 217 * "Flat" means it does *not* query backing image information, 218 * i.e. (*pinfo)->has_backing_image will be set to false and 219 * (*pinfo)->backing_image to NULL even when the image does in fact have 220 * a backing image. 221 * 222 * @p_info will be set only on success. On error, store error in @errp. 223 */ 224 void bdrv_query_image_info(BlockDriverState *bs, 225 ImageInfo **p_info, 226 Error **errp) 227 { 228 int64_t size; 229 const char *backing_filename; 230 BlockDriverInfo bdi; 231 int ret; 232 Error *err = NULL; 233 ImageInfo *info; 234 235 aio_context_acquire(bdrv_get_aio_context(bs)); 236 237 size = bdrv_getlength(bs); 238 if (size < 0) { 239 error_setg_errno(errp, -size, "Can't get size of device '%s'", 240 bdrv_get_device_name(bs)); 241 goto out; 242 } 243 244 info = g_new0(ImageInfo, 1); 245 info->filename = g_strdup(bs->filename); 246 info->format = g_strdup(bdrv_get_format_name(bs)); 247 info->virtual_size = size; 248 info->actual_size = bdrv_get_allocated_file_size(bs); 249 info->has_actual_size = info->actual_size >= 0; 250 if (bdrv_is_encrypted(bs)) { 251 info->encrypted = true; 252 info->has_encrypted = true; 253 } 254 if (bdrv_get_info(bs, &bdi) >= 0) { 255 if (bdi.cluster_size != 0) { 256 info->cluster_size = bdi.cluster_size; 257 info->has_cluster_size = true; 258 } 259 info->dirty_flag = bdi.is_dirty; 260 info->has_dirty_flag = true; 261 } 262 info->format_specific = bdrv_get_specific_info(bs); 263 info->has_format_specific = info->format_specific != NULL; 264 265 backing_filename = bs->backing_file; 266 if (backing_filename[0] != '\0') { 267 char *backing_filename2 = g_malloc0(PATH_MAX); 268 info->backing_filename = g_strdup(backing_filename); 269 info->has_backing_filename = true; 270 bdrv_get_full_backing_filename(bs, backing_filename2, PATH_MAX, &err); 271 if (err) { 272 /* Can't reconstruct the full backing filename, so we must omit 273 * this field and apply a Best Effort to this query. */ 274 g_free(backing_filename2); 275 backing_filename2 = NULL; 276 error_free(err); 277 err = NULL; 278 } 279 280 /* Always report the full_backing_filename if present, even if it's the 281 * same as backing_filename. That they are same is useful info. */ 282 if (backing_filename2) { 283 info->full_backing_filename = g_strdup(backing_filename2); 284 info->has_full_backing_filename = true; 285 } 286 287 if (bs->backing_format[0]) { 288 info->backing_filename_format = g_strdup(bs->backing_format); 289 info->has_backing_filename_format = true; 290 } 291 g_free(backing_filename2); 292 } 293 294 ret = bdrv_query_snapshot_info_list(bs, &info->snapshots, &err); 295 switch (ret) { 296 case 0: 297 if (info->snapshots) { 298 info->has_snapshots = true; 299 } 300 break; 301 /* recoverable error */ 302 case -ENOMEDIUM: 303 case -ENOTSUP: 304 error_free(err); 305 break; 306 default: 307 error_propagate(errp, err); 308 qapi_free_ImageInfo(info); 309 goto out; 310 } 311 312 *p_info = info; 313 314 out: 315 aio_context_release(bdrv_get_aio_context(bs)); 316 } 317 318 /* @p_info will be set only on success. */ 319 static void bdrv_query_info(BlockBackend *blk, BlockInfo **p_info, 320 Error **errp) 321 { 322 BlockInfo *info = g_malloc0(sizeof(*info)); 323 BlockDriverState *bs = blk_bs(blk); 324 info->device = g_strdup(blk_name(blk)); 325 info->type = g_strdup("unknown"); 326 info->locked = blk_dev_is_medium_locked(blk); 327 info->removable = blk_dev_has_removable_media(blk); 328 329 if (blk_dev_has_tray(blk)) { 330 info->has_tray_open = true; 331 info->tray_open = blk_dev_is_tray_open(blk); 332 } 333 334 if (blk_iostatus_is_enabled(blk)) { 335 info->has_io_status = true; 336 info->io_status = blk_iostatus(blk); 337 } 338 339 if (bs && !QLIST_EMPTY(&bs->dirty_bitmaps)) { 340 info->has_dirty_bitmaps = true; 341 info->dirty_bitmaps = bdrv_query_dirty_bitmaps(bs); 342 } 343 344 if (bs && bs->drv) { 345 info->has_inserted = true; 346 info->inserted = bdrv_block_device_info(bs, errp); 347 if (info->inserted == NULL) { 348 goto err; 349 } 350 } 351 352 *p_info = info; 353 return; 354 355 err: 356 qapi_free_BlockInfo(info); 357 } 358 359 static BlockStats *bdrv_query_stats(BlockBackend *blk, 360 const BlockDriverState *bs, 361 bool query_backing); 362 363 static void bdrv_query_blk_stats(BlockStats *s, BlockBackend *blk) 364 { 365 BlockAcctStats *stats = blk_get_stats(blk); 366 BlockAcctTimedStats *ts = NULL; 367 368 s->has_device = true; 369 s->device = g_strdup(blk_name(blk)); 370 371 s->stats->rd_bytes = stats->nr_bytes[BLOCK_ACCT_READ]; 372 s->stats->wr_bytes = stats->nr_bytes[BLOCK_ACCT_WRITE]; 373 s->stats->rd_operations = stats->nr_ops[BLOCK_ACCT_READ]; 374 s->stats->wr_operations = stats->nr_ops[BLOCK_ACCT_WRITE]; 375 376 s->stats->failed_rd_operations = stats->failed_ops[BLOCK_ACCT_READ]; 377 s->stats->failed_wr_operations = stats->failed_ops[BLOCK_ACCT_WRITE]; 378 s->stats->failed_flush_operations = stats->failed_ops[BLOCK_ACCT_FLUSH]; 379 380 s->stats->invalid_rd_operations = stats->invalid_ops[BLOCK_ACCT_READ]; 381 s->stats->invalid_wr_operations = stats->invalid_ops[BLOCK_ACCT_WRITE]; 382 s->stats->invalid_flush_operations = 383 stats->invalid_ops[BLOCK_ACCT_FLUSH]; 384 385 s->stats->rd_merged = stats->merged[BLOCK_ACCT_READ]; 386 s->stats->wr_merged = stats->merged[BLOCK_ACCT_WRITE]; 387 s->stats->flush_operations = stats->nr_ops[BLOCK_ACCT_FLUSH]; 388 s->stats->wr_total_time_ns = stats->total_time_ns[BLOCK_ACCT_WRITE]; 389 s->stats->rd_total_time_ns = stats->total_time_ns[BLOCK_ACCT_READ]; 390 s->stats->flush_total_time_ns = stats->total_time_ns[BLOCK_ACCT_FLUSH]; 391 392 s->stats->has_idle_time_ns = stats->last_access_time_ns > 0; 393 if (s->stats->has_idle_time_ns) { 394 s->stats->idle_time_ns = block_acct_idle_time_ns(stats); 395 } 396 397 s->stats->account_invalid = stats->account_invalid; 398 s->stats->account_failed = stats->account_failed; 399 400 while ((ts = block_acct_interval_next(stats, ts))) { 401 BlockDeviceTimedStatsList *timed_stats = 402 g_malloc0(sizeof(*timed_stats)); 403 BlockDeviceTimedStats *dev_stats = g_malloc0(sizeof(*dev_stats)); 404 timed_stats->next = s->stats->timed_stats; 405 timed_stats->value = dev_stats; 406 s->stats->timed_stats = timed_stats; 407 408 TimedAverage *rd = &ts->latency[BLOCK_ACCT_READ]; 409 TimedAverage *wr = &ts->latency[BLOCK_ACCT_WRITE]; 410 TimedAverage *fl = &ts->latency[BLOCK_ACCT_FLUSH]; 411 412 dev_stats->interval_length = ts->interval_length; 413 414 dev_stats->min_rd_latency_ns = timed_average_min(rd); 415 dev_stats->max_rd_latency_ns = timed_average_max(rd); 416 dev_stats->avg_rd_latency_ns = timed_average_avg(rd); 417 418 dev_stats->min_wr_latency_ns = timed_average_min(wr); 419 dev_stats->max_wr_latency_ns = timed_average_max(wr); 420 dev_stats->avg_wr_latency_ns = timed_average_avg(wr); 421 422 dev_stats->min_flush_latency_ns = timed_average_min(fl); 423 dev_stats->max_flush_latency_ns = timed_average_max(fl); 424 dev_stats->avg_flush_latency_ns = timed_average_avg(fl); 425 426 dev_stats->avg_rd_queue_depth = 427 block_acct_queue_depth(ts, BLOCK_ACCT_READ); 428 dev_stats->avg_wr_queue_depth = 429 block_acct_queue_depth(ts, BLOCK_ACCT_WRITE); 430 } 431 } 432 433 static void bdrv_query_bds_stats(BlockStats *s, const BlockDriverState *bs, 434 bool query_backing) 435 { 436 if (bdrv_get_node_name(bs)[0]) { 437 s->has_node_name = true; 438 s->node_name = g_strdup(bdrv_get_node_name(bs)); 439 } 440 441 s->stats->wr_highest_offset = bs->wr_highest_offset; 442 443 if (bs->file) { 444 s->has_parent = true; 445 s->parent = bdrv_query_stats(NULL, bs->file->bs, query_backing); 446 } 447 448 if (query_backing && bs->backing) { 449 s->has_backing = true; 450 s->backing = bdrv_query_stats(NULL, bs->backing->bs, query_backing); 451 } 452 453 } 454 455 static BlockStats *bdrv_query_stats(BlockBackend *blk, 456 const BlockDriverState *bs, 457 bool query_backing) 458 { 459 BlockStats *s; 460 461 s = g_malloc0(sizeof(*s)); 462 s->stats = g_malloc0(sizeof(*s->stats)); 463 464 if (blk) { 465 bdrv_query_blk_stats(s, 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 const char *format = composite ? "%*s[%i]:\n" : "%*s[%i]: "; 656 657 func_fprintf(f, format, indentation * 4, "", i); 658 dump_qobject(func_fprintf, f, indentation + 1, entry->value); 659 if (!composite) { 660 func_fprintf(f, "\n"); 661 } 662 } 663 } 664 665 static void dump_qdict(fprintf_function func_fprintf, void *f, int indentation, 666 QDict *dict) 667 { 668 const QDictEntry *entry; 669 670 for (entry = qdict_first(dict); entry; entry = qdict_next(dict, entry)) { 671 QType type = qobject_type(entry->value); 672 bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); 673 const char *format = composite ? "%*s%s:\n" : "%*s%s: "; 674 char key[strlen(entry->key) + 1]; 675 int i; 676 677 /* replace dashes with spaces in key (variable) names */ 678 for (i = 0; entry->key[i]; i++) { 679 key[i] = entry->key[i] == '-' ? ' ' : entry->key[i]; 680 } 681 key[i] = 0; 682 683 func_fprintf(f, format, indentation * 4, "", key); 684 dump_qobject(func_fprintf, f, indentation + 1, entry->value); 685 if (!composite) { 686 func_fprintf(f, "\n"); 687 } 688 } 689 } 690 691 void bdrv_image_info_specific_dump(fprintf_function func_fprintf, void *f, 692 ImageInfoSpecific *info_spec) 693 { 694 QmpOutputVisitor *ov = qmp_output_visitor_new(); 695 QObject *obj, *data; 696 697 visit_type_ImageInfoSpecific(qmp_output_get_visitor(ov), NULL, &info_spec, 698 &error_abort); 699 obj = qmp_output_get_qobject(ov); 700 assert(qobject_type(obj) == QTYPE_QDICT); 701 data = qdict_get(qobject_to_qdict(obj), "data"); 702 dump_qobject(func_fprintf, f, 1, data); 703 qmp_output_visitor_cleanup(ov); 704 } 705 706 void bdrv_image_info_dump(fprintf_function func_fprintf, void *f, 707 ImageInfo *info) 708 { 709 char size_buf[128], dsize_buf[128]; 710 if (!info->has_actual_size) { 711 snprintf(dsize_buf, sizeof(dsize_buf), "unavailable"); 712 } else { 713 get_human_readable_size(dsize_buf, sizeof(dsize_buf), 714 info->actual_size); 715 } 716 get_human_readable_size(size_buf, sizeof(size_buf), info->virtual_size); 717 func_fprintf(f, 718 "image: %s\n" 719 "file format: %s\n" 720 "virtual size: %s (%" PRId64 " bytes)\n" 721 "disk size: %s\n", 722 info->filename, info->format, size_buf, 723 info->virtual_size, 724 dsize_buf); 725 726 if (info->has_encrypted && info->encrypted) { 727 func_fprintf(f, "encrypted: yes\n"); 728 } 729 730 if (info->has_cluster_size) { 731 func_fprintf(f, "cluster_size: %" PRId64 "\n", 732 info->cluster_size); 733 } 734 735 if (info->has_dirty_flag && info->dirty_flag) { 736 func_fprintf(f, "cleanly shut down: no\n"); 737 } 738 739 if (info->has_backing_filename) { 740 func_fprintf(f, "backing file: %s", info->backing_filename); 741 if (!info->has_full_backing_filename) { 742 func_fprintf(f, " (cannot determine actual path)"); 743 } else if (strcmp(info->backing_filename, 744 info->full_backing_filename) != 0) { 745 func_fprintf(f, " (actual path: %s)", info->full_backing_filename); 746 } 747 func_fprintf(f, "\n"); 748 if (info->has_backing_filename_format) { 749 func_fprintf(f, "backing file format: %s\n", 750 info->backing_filename_format); 751 } 752 } 753 754 if (info->has_snapshots) { 755 SnapshotInfoList *elem; 756 757 func_fprintf(f, "Snapshot list:\n"); 758 bdrv_snapshot_dump(func_fprintf, f, NULL); 759 func_fprintf(f, "\n"); 760 761 /* Ideally bdrv_snapshot_dump() would operate on SnapshotInfoList but 762 * we convert to the block layer's native QEMUSnapshotInfo for now. 763 */ 764 for (elem = info->snapshots; elem; elem = elem->next) { 765 QEMUSnapshotInfo sn = { 766 .vm_state_size = elem->value->vm_state_size, 767 .date_sec = elem->value->date_sec, 768 .date_nsec = elem->value->date_nsec, 769 .vm_clock_nsec = elem->value->vm_clock_sec * 1000000000ULL + 770 elem->value->vm_clock_nsec, 771 }; 772 773 pstrcpy(sn.id_str, sizeof(sn.id_str), elem->value->id); 774 pstrcpy(sn.name, sizeof(sn.name), elem->value->name); 775 bdrv_snapshot_dump(func_fprintf, f, &sn); 776 func_fprintf(f, "\n"); 777 } 778 } 779 780 if (info->has_format_specific) { 781 func_fprintf(f, "Format specific information:\n"); 782 bdrv_image_info_specific_dump(func_fprintf, f, info->format_specific); 783 } 784 } 785