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