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 = 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 image size '%s'", 241 bs->exact_filename); 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 void bdrv_query_blk_stats(BlockDeviceStats *ds, BlockBackend *blk) 361 { 362 BlockAcctStats *stats = blk_get_stats(blk); 363 BlockAcctTimedStats *ts = NULL; 364 365 ds->rd_bytes = stats->nr_bytes[BLOCK_ACCT_READ]; 366 ds->wr_bytes = stats->nr_bytes[BLOCK_ACCT_WRITE]; 367 ds->rd_operations = stats->nr_ops[BLOCK_ACCT_READ]; 368 ds->wr_operations = stats->nr_ops[BLOCK_ACCT_WRITE]; 369 370 ds->failed_rd_operations = stats->failed_ops[BLOCK_ACCT_READ]; 371 ds->failed_wr_operations = stats->failed_ops[BLOCK_ACCT_WRITE]; 372 ds->failed_flush_operations = stats->failed_ops[BLOCK_ACCT_FLUSH]; 373 374 ds->invalid_rd_operations = stats->invalid_ops[BLOCK_ACCT_READ]; 375 ds->invalid_wr_operations = stats->invalid_ops[BLOCK_ACCT_WRITE]; 376 ds->invalid_flush_operations = 377 stats->invalid_ops[BLOCK_ACCT_FLUSH]; 378 379 ds->rd_merged = stats->merged[BLOCK_ACCT_READ]; 380 ds->wr_merged = stats->merged[BLOCK_ACCT_WRITE]; 381 ds->flush_operations = stats->nr_ops[BLOCK_ACCT_FLUSH]; 382 ds->wr_total_time_ns = stats->total_time_ns[BLOCK_ACCT_WRITE]; 383 ds->rd_total_time_ns = stats->total_time_ns[BLOCK_ACCT_READ]; 384 ds->flush_total_time_ns = stats->total_time_ns[BLOCK_ACCT_FLUSH]; 385 386 ds->has_idle_time_ns = stats->last_access_time_ns > 0; 387 if (ds->has_idle_time_ns) { 388 ds->idle_time_ns = block_acct_idle_time_ns(stats); 389 } 390 391 ds->account_invalid = stats->account_invalid; 392 ds->account_failed = stats->account_failed; 393 394 while ((ts = block_acct_interval_next(stats, ts))) { 395 BlockDeviceTimedStatsList *timed_stats = 396 g_malloc0(sizeof(*timed_stats)); 397 BlockDeviceTimedStats *dev_stats = g_malloc0(sizeof(*dev_stats)); 398 timed_stats->next = ds->timed_stats; 399 timed_stats->value = dev_stats; 400 ds->timed_stats = timed_stats; 401 402 TimedAverage *rd = &ts->latency[BLOCK_ACCT_READ]; 403 TimedAverage *wr = &ts->latency[BLOCK_ACCT_WRITE]; 404 TimedAverage *fl = &ts->latency[BLOCK_ACCT_FLUSH]; 405 406 dev_stats->interval_length = ts->interval_length; 407 408 dev_stats->min_rd_latency_ns = timed_average_min(rd); 409 dev_stats->max_rd_latency_ns = timed_average_max(rd); 410 dev_stats->avg_rd_latency_ns = timed_average_avg(rd); 411 412 dev_stats->min_wr_latency_ns = timed_average_min(wr); 413 dev_stats->max_wr_latency_ns = timed_average_max(wr); 414 dev_stats->avg_wr_latency_ns = timed_average_avg(wr); 415 416 dev_stats->min_flush_latency_ns = timed_average_min(fl); 417 dev_stats->max_flush_latency_ns = timed_average_max(fl); 418 dev_stats->avg_flush_latency_ns = timed_average_avg(fl); 419 420 dev_stats->avg_rd_queue_depth = 421 block_acct_queue_depth(ts, BLOCK_ACCT_READ); 422 dev_stats->avg_wr_queue_depth = 423 block_acct_queue_depth(ts, BLOCK_ACCT_WRITE); 424 } 425 } 426 427 static BlockStats *bdrv_query_bds_stats(const BlockDriverState *bs, 428 bool query_backing) 429 { 430 BlockStats *s = NULL; 431 432 s = g_malloc0(sizeof(*s)); 433 s->stats = g_malloc0(sizeof(*s->stats)); 434 435 if (!bs) { 436 return s; 437 } 438 439 if (bdrv_get_node_name(bs)[0]) { 440 s->has_node_name = true; 441 s->node_name = g_strdup(bdrv_get_node_name(bs)); 442 } 443 444 s->stats->wr_highest_offset = bs->wr_highest_offset; 445 446 if (bs->file) { 447 s->has_parent = true; 448 s->parent = bdrv_query_bds_stats(bs->file->bs, query_backing); 449 } 450 451 if (query_backing && bs->backing) { 452 s->has_backing = true; 453 s->backing = bdrv_query_bds_stats(bs->backing->bs, query_backing); 454 } 455 456 return s; 457 } 458 459 BlockInfoList *qmp_query_block(Error **errp) 460 { 461 BlockInfoList *head = NULL, **p_next = &head; 462 BlockBackend *blk; 463 Error *local_err = NULL; 464 465 for (blk = blk_next(NULL); blk; blk = blk_next(blk)) { 466 BlockInfoList *info = g_malloc0(sizeof(*info)); 467 bdrv_query_info(blk, &info->value, &local_err); 468 if (local_err) { 469 error_propagate(errp, local_err); 470 g_free(info); 471 qapi_free_BlockInfoList(head); 472 return NULL; 473 } 474 475 *p_next = info; 476 p_next = &info->next; 477 } 478 479 return head; 480 } 481 482 BlockStatsList *qmp_query_blockstats(bool has_query_nodes, 483 bool query_nodes, 484 Error **errp) 485 { 486 BlockStatsList *head = NULL, **p_next = &head; 487 BlockBackend *blk; 488 BlockDriverState *bs; 489 490 /* Just to be safe if query_nodes is not always initialized */ 491 if (has_query_nodes && query_nodes) { 492 for (bs = bdrv_next_node(NULL); bs; bs = bdrv_next_node(bs)) { 493 BlockStatsList *info = g_malloc0(sizeof(*info)); 494 AioContext *ctx = bdrv_get_aio_context(bs); 495 496 aio_context_acquire(ctx); 497 info->value = bdrv_query_bds_stats(bs, false); 498 aio_context_release(ctx); 499 500 *p_next = info; 501 p_next = &info->next; 502 } 503 } else { 504 for (blk = blk_next(NULL); blk; blk = blk_next(blk)) { 505 BlockStatsList *info = g_malloc0(sizeof(*info)); 506 AioContext *ctx = blk_get_aio_context(blk); 507 BlockStats *s; 508 509 aio_context_acquire(ctx); 510 s = bdrv_query_bds_stats(blk_bs(blk), true); 511 s->has_device = true; 512 s->device = g_strdup(blk_name(blk)); 513 bdrv_query_blk_stats(s->stats, blk); 514 aio_context_release(ctx); 515 516 info->value = s; 517 *p_next = info; 518 p_next = &info->next; 519 } 520 } 521 522 return head; 523 } 524 525 #define NB_SUFFIXES 4 526 527 static char *get_human_readable_size(char *buf, int buf_size, int64_t size) 528 { 529 static const char suffixes[NB_SUFFIXES] = {'K', 'M', 'G', 'T'}; 530 int64_t base; 531 int i; 532 533 if (size <= 999) { 534 snprintf(buf, buf_size, "%" PRId64, size); 535 } else { 536 base = 1024; 537 for (i = 0; i < NB_SUFFIXES; i++) { 538 if (size < (10 * base)) { 539 snprintf(buf, buf_size, "%0.1f%c", 540 (double)size / base, 541 suffixes[i]); 542 break; 543 } else if (size < (1000 * base) || i == (NB_SUFFIXES - 1)) { 544 snprintf(buf, buf_size, "%" PRId64 "%c", 545 ((size + (base >> 1)) / base), 546 suffixes[i]); 547 break; 548 } 549 base = base * 1024; 550 } 551 } 552 return buf; 553 } 554 555 void bdrv_snapshot_dump(fprintf_function func_fprintf, void *f, 556 QEMUSnapshotInfo *sn) 557 { 558 char buf1[128], date_buf[128], clock_buf[128]; 559 struct tm tm; 560 time_t ti; 561 int64_t secs; 562 563 if (!sn) { 564 func_fprintf(f, 565 "%-10s%-20s%7s%20s%15s", 566 "ID", "TAG", "VM SIZE", "DATE", "VM CLOCK"); 567 } else { 568 ti = sn->date_sec; 569 localtime_r(&ti, &tm); 570 strftime(date_buf, sizeof(date_buf), 571 "%Y-%m-%d %H:%M:%S", &tm); 572 secs = sn->vm_clock_nsec / 1000000000; 573 snprintf(clock_buf, sizeof(clock_buf), 574 "%02d:%02d:%02d.%03d", 575 (int)(secs / 3600), 576 (int)((secs / 60) % 60), 577 (int)(secs % 60), 578 (int)((sn->vm_clock_nsec / 1000000) % 1000)); 579 func_fprintf(f, 580 "%-10s%-20s%7s%20s%15s", 581 sn->id_str, sn->name, 582 get_human_readable_size(buf1, sizeof(buf1), 583 sn->vm_state_size), 584 date_buf, 585 clock_buf); 586 } 587 } 588 589 static void dump_qdict(fprintf_function func_fprintf, void *f, int indentation, 590 QDict *dict); 591 static void dump_qlist(fprintf_function func_fprintf, void *f, int indentation, 592 QList *list); 593 594 static void dump_qobject(fprintf_function func_fprintf, void *f, 595 int comp_indent, QObject *obj) 596 { 597 switch (qobject_type(obj)) { 598 case QTYPE_QINT: { 599 QInt *value = qobject_to_qint(obj); 600 func_fprintf(f, "%" PRId64, qint_get_int(value)); 601 break; 602 } 603 case QTYPE_QSTRING: { 604 QString *value = qobject_to_qstring(obj); 605 func_fprintf(f, "%s", qstring_get_str(value)); 606 break; 607 } 608 case QTYPE_QDICT: { 609 QDict *value = qobject_to_qdict(obj); 610 dump_qdict(func_fprintf, f, comp_indent, value); 611 break; 612 } 613 case QTYPE_QLIST: { 614 QList *value = qobject_to_qlist(obj); 615 dump_qlist(func_fprintf, f, comp_indent, value); 616 break; 617 } 618 case QTYPE_QFLOAT: { 619 QFloat *value = qobject_to_qfloat(obj); 620 func_fprintf(f, "%g", qfloat_get_double(value)); 621 break; 622 } 623 case QTYPE_QBOOL: { 624 QBool *value = qobject_to_qbool(obj); 625 func_fprintf(f, "%s", qbool_get_bool(value) ? "true" : "false"); 626 break; 627 } 628 default: 629 abort(); 630 } 631 } 632 633 static void dump_qlist(fprintf_function func_fprintf, void *f, int indentation, 634 QList *list) 635 { 636 const QListEntry *entry; 637 int i = 0; 638 639 for (entry = qlist_first(list); entry; entry = qlist_next(entry), i++) { 640 QType type = qobject_type(entry->value); 641 bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); 642 func_fprintf(f, "%*s[%i]:%c", indentation * 4, "", i, 643 composite ? '\n' : ' '); 644 dump_qobject(func_fprintf, f, indentation + 1, entry->value); 645 if (!composite) { 646 func_fprintf(f, "\n"); 647 } 648 } 649 } 650 651 static void dump_qdict(fprintf_function func_fprintf, void *f, int indentation, 652 QDict *dict) 653 { 654 const QDictEntry *entry; 655 656 for (entry = qdict_first(dict); entry; entry = qdict_next(dict, entry)) { 657 QType type = qobject_type(entry->value); 658 bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); 659 char *key = g_malloc(strlen(entry->key) + 1); 660 int i; 661 662 /* replace dashes with spaces in key (variable) names */ 663 for (i = 0; entry->key[i]; i++) { 664 key[i] = entry->key[i] == '-' ? ' ' : entry->key[i]; 665 } 666 key[i] = 0; 667 func_fprintf(f, "%*s%s:%c", indentation * 4, "", key, 668 composite ? '\n' : ' '); 669 dump_qobject(func_fprintf, f, indentation + 1, entry->value); 670 if (!composite) { 671 func_fprintf(f, "\n"); 672 } 673 g_free(key); 674 } 675 } 676 677 void bdrv_image_info_specific_dump(fprintf_function func_fprintf, void *f, 678 ImageInfoSpecific *info_spec) 679 { 680 QObject *obj, *data; 681 Visitor *v = qobject_output_visitor_new(&obj); 682 683 visit_type_ImageInfoSpecific(v, NULL, &info_spec, &error_abort); 684 visit_complete(v, &obj); 685 assert(qobject_type(obj) == QTYPE_QDICT); 686 data = qdict_get(qobject_to_qdict(obj), "data"); 687 dump_qobject(func_fprintf, f, 1, data); 688 qobject_decref(obj); 689 visit_free(v); 690 } 691 692 void bdrv_image_info_dump(fprintf_function func_fprintf, void *f, 693 ImageInfo *info) 694 { 695 char size_buf[128], dsize_buf[128]; 696 if (!info->has_actual_size) { 697 snprintf(dsize_buf, sizeof(dsize_buf), "unavailable"); 698 } else { 699 get_human_readable_size(dsize_buf, sizeof(dsize_buf), 700 info->actual_size); 701 } 702 get_human_readable_size(size_buf, sizeof(size_buf), info->virtual_size); 703 func_fprintf(f, 704 "image: %s\n" 705 "file format: %s\n" 706 "virtual size: %s (%" PRId64 " bytes)\n" 707 "disk size: %s\n", 708 info->filename, info->format, size_buf, 709 info->virtual_size, 710 dsize_buf); 711 712 if (info->has_encrypted && info->encrypted) { 713 func_fprintf(f, "encrypted: yes\n"); 714 } 715 716 if (info->has_cluster_size) { 717 func_fprintf(f, "cluster_size: %" PRId64 "\n", 718 info->cluster_size); 719 } 720 721 if (info->has_dirty_flag && info->dirty_flag) { 722 func_fprintf(f, "cleanly shut down: no\n"); 723 } 724 725 if (info->has_backing_filename) { 726 func_fprintf(f, "backing file: %s", info->backing_filename); 727 if (!info->has_full_backing_filename) { 728 func_fprintf(f, " (cannot determine actual path)"); 729 } else if (strcmp(info->backing_filename, 730 info->full_backing_filename) != 0) { 731 func_fprintf(f, " (actual path: %s)", info->full_backing_filename); 732 } 733 func_fprintf(f, "\n"); 734 if (info->has_backing_filename_format) { 735 func_fprintf(f, "backing file format: %s\n", 736 info->backing_filename_format); 737 } 738 } 739 740 if (info->has_snapshots) { 741 SnapshotInfoList *elem; 742 743 func_fprintf(f, "Snapshot list:\n"); 744 bdrv_snapshot_dump(func_fprintf, f, NULL); 745 func_fprintf(f, "\n"); 746 747 /* Ideally bdrv_snapshot_dump() would operate on SnapshotInfoList but 748 * we convert to the block layer's native QEMUSnapshotInfo for now. 749 */ 750 for (elem = info->snapshots; elem; elem = elem->next) { 751 QEMUSnapshotInfo sn = { 752 .vm_state_size = elem->value->vm_state_size, 753 .date_sec = elem->value->date_sec, 754 .date_nsec = elem->value->date_nsec, 755 .vm_clock_nsec = elem->value->vm_clock_sec * 1000000000ULL + 756 elem->value->vm_clock_nsec, 757 }; 758 759 pstrcpy(sn.id_str, sizeof(sn.id_str), elem->value->id); 760 pstrcpy(sn.name, sizeof(sn.name), elem->value->name); 761 bdrv_snapshot_dump(func_fprintf, f, &sn); 762 func_fprintf(f, "\n"); 763 } 764 } 765 766 if (info->has_format_specific) { 767 func_fprintf(f, "Format specific information:\n"); 768 bdrv_image_info_specific_dump(func_fprintf, f, info->format_specific); 769 } 770 } 771