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 "qapi/error.h" 31 #include "qapi/qapi-commands-block-core.h" 32 #include "qapi/qobject-output-visitor.h" 33 #include "qapi/qapi-visit-block-core.h" 34 #include "qapi/qmp/qbool.h" 35 #include "qapi/qmp/qdict.h" 36 #include "qapi/qmp/qlist.h" 37 #include "qapi/qmp/qnum.h" 38 #include "qapi/qmp/qstring.h" 39 #include "sysemu/block-backend.h" 40 #include "qemu/cutils.h" 41 42 BlockDeviceInfo *bdrv_block_device_info(BlockBackend *blk, 43 BlockDriverState *bs, Error **errp) 44 { 45 ImageInfo **p_image_info; 46 BlockDriverState *bs0; 47 BlockDeviceInfo *info; 48 49 if (!bs->drv) { 50 error_setg(errp, "Block device %s is ejected", bs->node_name); 51 return NULL; 52 } 53 54 bdrv_refresh_filename(bs); 55 56 info = g_malloc0(sizeof(*info)); 57 info->file = g_strdup(bs->filename); 58 info->ro = bs->read_only; 59 info->drv = g_strdup(bs->drv->format_name); 60 info->encrypted = bs->encrypted; 61 info->encryption_key_missing = false; 62 63 info->cache = g_new(BlockdevCacheInfo, 1); 64 *info->cache = (BlockdevCacheInfo) { 65 .writeback = blk ? blk_enable_write_cache(blk) : true, 66 .direct = !!(bs->open_flags & BDRV_O_NOCACHE), 67 .no_flush = !!(bs->open_flags & BDRV_O_NO_FLUSH), 68 }; 69 70 if (bs->node_name[0]) { 71 info->has_node_name = true; 72 info->node_name = g_strdup(bs->node_name); 73 } 74 75 if (bs->backing_file[0]) { 76 info->has_backing_file = true; 77 info->backing_file = g_strdup(bs->backing_file); 78 } 79 80 info->detect_zeroes = bs->detect_zeroes; 81 82 if (blk && blk_get_public(blk)->throttle_group_member.throttle_state) { 83 ThrottleConfig cfg; 84 BlockBackendPublic *blkp = blk_get_public(blk); 85 86 throttle_group_get_config(&blkp->throttle_group_member, &cfg); 87 88 info->bps = cfg.buckets[THROTTLE_BPS_TOTAL].avg; 89 info->bps_rd = cfg.buckets[THROTTLE_BPS_READ].avg; 90 info->bps_wr = cfg.buckets[THROTTLE_BPS_WRITE].avg; 91 92 info->iops = cfg.buckets[THROTTLE_OPS_TOTAL].avg; 93 info->iops_rd = cfg.buckets[THROTTLE_OPS_READ].avg; 94 info->iops_wr = cfg.buckets[THROTTLE_OPS_WRITE].avg; 95 96 info->has_bps_max = cfg.buckets[THROTTLE_BPS_TOTAL].max; 97 info->bps_max = cfg.buckets[THROTTLE_BPS_TOTAL].max; 98 info->has_bps_rd_max = cfg.buckets[THROTTLE_BPS_READ].max; 99 info->bps_rd_max = cfg.buckets[THROTTLE_BPS_READ].max; 100 info->has_bps_wr_max = cfg.buckets[THROTTLE_BPS_WRITE].max; 101 info->bps_wr_max = cfg.buckets[THROTTLE_BPS_WRITE].max; 102 103 info->has_iops_max = cfg.buckets[THROTTLE_OPS_TOTAL].max; 104 info->iops_max = cfg.buckets[THROTTLE_OPS_TOTAL].max; 105 info->has_iops_rd_max = cfg.buckets[THROTTLE_OPS_READ].max; 106 info->iops_rd_max = cfg.buckets[THROTTLE_OPS_READ].max; 107 info->has_iops_wr_max = cfg.buckets[THROTTLE_OPS_WRITE].max; 108 info->iops_wr_max = cfg.buckets[THROTTLE_OPS_WRITE].max; 109 110 info->has_bps_max_length = info->has_bps_max; 111 info->bps_max_length = 112 cfg.buckets[THROTTLE_BPS_TOTAL].burst_length; 113 info->has_bps_rd_max_length = info->has_bps_rd_max; 114 info->bps_rd_max_length = 115 cfg.buckets[THROTTLE_BPS_READ].burst_length; 116 info->has_bps_wr_max_length = info->has_bps_wr_max; 117 info->bps_wr_max_length = 118 cfg.buckets[THROTTLE_BPS_WRITE].burst_length; 119 120 info->has_iops_max_length = info->has_iops_max; 121 info->iops_max_length = 122 cfg.buckets[THROTTLE_OPS_TOTAL].burst_length; 123 info->has_iops_rd_max_length = info->has_iops_rd_max; 124 info->iops_rd_max_length = 125 cfg.buckets[THROTTLE_OPS_READ].burst_length; 126 info->has_iops_wr_max_length = info->has_iops_wr_max; 127 info->iops_wr_max_length = 128 cfg.buckets[THROTTLE_OPS_WRITE].burst_length; 129 130 info->has_iops_size = cfg.op_size; 131 info->iops_size = cfg.op_size; 132 133 info->has_group = true; 134 info->group = 135 g_strdup(throttle_group_get_name(&blkp->throttle_group_member)); 136 } 137 138 info->write_threshold = bdrv_write_threshold_get(bs); 139 140 bs0 = bs; 141 p_image_info = &info->image; 142 info->backing_file_depth = 0; 143 while (1) { 144 Error *local_err = NULL; 145 bdrv_query_image_info(bs0, p_image_info, &local_err); 146 if (local_err) { 147 error_propagate(errp, local_err); 148 qapi_free_BlockDeviceInfo(info); 149 return NULL; 150 } 151 152 if (bs0->drv && bs0->backing) { 153 info->backing_file_depth++; 154 bs0 = bs0->backing->bs; 155 (*p_image_info)->has_backing_image = true; 156 p_image_info = &((*p_image_info)->backing_image); 157 } else { 158 break; 159 } 160 161 /* Skip automatically inserted nodes that the user isn't aware of for 162 * query-block (blk != NULL), but not for query-named-block-nodes */ 163 while (blk && bs0->drv && bs0->implicit) { 164 bs0 = backing_bs(bs0); 165 assert(bs0); 166 } 167 } 168 169 return info; 170 } 171 172 /* 173 * Returns 0 on success, with *p_list either set to describe snapshot 174 * information, or NULL because there are no snapshots. Returns -errno on 175 * error, with *p_list untouched. 176 */ 177 int bdrv_query_snapshot_info_list(BlockDriverState *bs, 178 SnapshotInfoList **p_list, 179 Error **errp) 180 { 181 int i, sn_count; 182 QEMUSnapshotInfo *sn_tab = NULL; 183 SnapshotInfoList *info_list, *cur_item = NULL, *head = NULL; 184 SnapshotInfo *info; 185 186 sn_count = bdrv_snapshot_list(bs, &sn_tab); 187 if (sn_count < 0) { 188 const char *dev = bdrv_get_device_name(bs); 189 switch (sn_count) { 190 case -ENOMEDIUM: 191 error_setg(errp, "Device '%s' is not inserted", dev); 192 break; 193 case -ENOTSUP: 194 error_setg(errp, 195 "Device '%s' does not support internal snapshots", 196 dev); 197 break; 198 default: 199 error_setg_errno(errp, -sn_count, 200 "Can't list snapshots of device '%s'", dev); 201 break; 202 } 203 return sn_count; 204 } 205 206 for (i = 0; i < sn_count; i++) { 207 info = g_new0(SnapshotInfo, 1); 208 info->id = g_strdup(sn_tab[i].id_str); 209 info->name = g_strdup(sn_tab[i].name); 210 info->vm_state_size = sn_tab[i].vm_state_size; 211 info->date_sec = sn_tab[i].date_sec; 212 info->date_nsec = sn_tab[i].date_nsec; 213 info->vm_clock_sec = sn_tab[i].vm_clock_nsec / 1000000000; 214 info->vm_clock_nsec = sn_tab[i].vm_clock_nsec % 1000000000; 215 216 info_list = g_new0(SnapshotInfoList, 1); 217 info_list->value = info; 218 219 /* XXX: waiting for the qapi to support qemu-queue.h types */ 220 if (!cur_item) { 221 head = cur_item = info_list; 222 } else { 223 cur_item->next = info_list; 224 cur_item = info_list; 225 } 226 227 } 228 229 g_free(sn_tab); 230 *p_list = head; 231 return 0; 232 } 233 234 /** 235 * bdrv_query_image_info: 236 * @bs: block device to examine 237 * @p_info: location to store image information 238 * @errp: location to store error information 239 * 240 * Store "flat" image information in @p_info. 241 * 242 * "Flat" means it does *not* query backing image information, 243 * i.e. (*pinfo)->has_backing_image will be set to false and 244 * (*pinfo)->backing_image to NULL even when the image does in fact have 245 * a backing image. 246 * 247 * @p_info will be set only on success. On error, store error in @errp. 248 */ 249 void bdrv_query_image_info(BlockDriverState *bs, 250 ImageInfo **p_info, 251 Error **errp) 252 { 253 int64_t size; 254 const char *backing_filename; 255 BlockDriverInfo bdi; 256 int ret; 257 Error *err = NULL; 258 ImageInfo *info; 259 260 aio_context_acquire(bdrv_get_aio_context(bs)); 261 262 size = bdrv_getlength(bs); 263 if (size < 0) { 264 error_setg_errno(errp, -size, "Can't get image size '%s'", 265 bs->exact_filename); 266 goto out; 267 } 268 269 bdrv_refresh_filename(bs); 270 271 info = g_new0(ImageInfo, 1); 272 info->filename = g_strdup(bs->filename); 273 info->format = g_strdup(bdrv_get_format_name(bs)); 274 info->virtual_size = size; 275 info->actual_size = bdrv_get_allocated_file_size(bs); 276 info->has_actual_size = info->actual_size >= 0; 277 if (bdrv_is_encrypted(bs)) { 278 info->encrypted = true; 279 info->has_encrypted = true; 280 } 281 if (bdrv_get_info(bs, &bdi) >= 0) { 282 if (bdi.cluster_size != 0) { 283 info->cluster_size = bdi.cluster_size; 284 info->has_cluster_size = true; 285 } 286 info->dirty_flag = bdi.is_dirty; 287 info->has_dirty_flag = true; 288 } 289 info->format_specific = bdrv_get_specific_info(bs, &err); 290 if (err) { 291 error_propagate(errp, err); 292 qapi_free_ImageInfo(info); 293 goto out; 294 } 295 info->has_format_specific = info->format_specific != NULL; 296 297 backing_filename = bs->backing_file; 298 if (backing_filename[0] != '\0') { 299 char *backing_filename2; 300 info->backing_filename = g_strdup(backing_filename); 301 info->has_backing_filename = true; 302 backing_filename2 = bdrv_get_full_backing_filename(bs, NULL); 303 304 /* Always report the full_backing_filename if present, even if it's the 305 * same as backing_filename. That they are same is useful info. */ 306 if (backing_filename2) { 307 info->full_backing_filename = g_strdup(backing_filename2); 308 info->has_full_backing_filename = true; 309 } 310 311 if (bs->backing_format[0]) { 312 info->backing_filename_format = g_strdup(bs->backing_format); 313 info->has_backing_filename_format = true; 314 } 315 g_free(backing_filename2); 316 } 317 318 ret = bdrv_query_snapshot_info_list(bs, &info->snapshots, &err); 319 switch (ret) { 320 case 0: 321 if (info->snapshots) { 322 info->has_snapshots = true; 323 } 324 break; 325 /* recoverable error */ 326 case -ENOMEDIUM: 327 case -ENOTSUP: 328 error_free(err); 329 break; 330 default: 331 error_propagate(errp, err); 332 qapi_free_ImageInfo(info); 333 goto out; 334 } 335 336 *p_info = info; 337 338 out: 339 aio_context_release(bdrv_get_aio_context(bs)); 340 } 341 342 /* @p_info will be set only on success. */ 343 static void bdrv_query_info(BlockBackend *blk, BlockInfo **p_info, 344 Error **errp) 345 { 346 BlockInfo *info = g_malloc0(sizeof(*info)); 347 BlockDriverState *bs = blk_bs(blk); 348 char *qdev; 349 350 /* Skip automatically inserted nodes that the user isn't aware of */ 351 while (bs && bs->drv && bs->implicit) { 352 bs = backing_bs(bs); 353 } 354 355 info->device = g_strdup(blk_name(blk)); 356 info->type = g_strdup("unknown"); 357 info->locked = blk_dev_is_medium_locked(blk); 358 info->removable = blk_dev_has_removable_media(blk); 359 360 qdev = blk_get_attached_dev_id(blk); 361 if (qdev && *qdev) { 362 info->has_qdev = true; 363 info->qdev = qdev; 364 } else { 365 g_free(qdev); 366 } 367 368 if (blk_dev_has_tray(blk)) { 369 info->has_tray_open = true; 370 info->tray_open = blk_dev_is_tray_open(blk); 371 } 372 373 if (blk_iostatus_is_enabled(blk)) { 374 info->has_io_status = true; 375 info->io_status = blk_iostatus(blk); 376 } 377 378 if (bs && !QLIST_EMPTY(&bs->dirty_bitmaps)) { 379 info->has_dirty_bitmaps = true; 380 info->dirty_bitmaps = bdrv_query_dirty_bitmaps(bs); 381 } 382 383 if (bs && bs->drv) { 384 info->has_inserted = true; 385 info->inserted = bdrv_block_device_info(blk, bs, errp); 386 if (info->inserted == NULL) { 387 goto err; 388 } 389 } 390 391 *p_info = info; 392 return; 393 394 err: 395 qapi_free_BlockInfo(info); 396 } 397 398 static uint64List *uint64_list(uint64_t *list, int size) 399 { 400 int i; 401 uint64List *out_list = NULL; 402 uint64List **pout_list = &out_list; 403 404 for (i = 0; i < size; i++) { 405 uint64List *entry = g_new(uint64List, 1); 406 entry->value = list[i]; 407 *pout_list = entry; 408 pout_list = &entry->next; 409 } 410 411 *pout_list = NULL; 412 413 return out_list; 414 } 415 416 static void bdrv_latency_histogram_stats(BlockLatencyHistogram *hist, 417 bool *not_null, 418 BlockLatencyHistogramInfo **info) 419 { 420 *not_null = hist->bins != NULL; 421 if (*not_null) { 422 *info = g_new0(BlockLatencyHistogramInfo, 1); 423 424 (*info)->boundaries = uint64_list(hist->boundaries, hist->nbins - 1); 425 (*info)->bins = uint64_list(hist->bins, hist->nbins); 426 } 427 } 428 429 static void bdrv_query_blk_stats(BlockDeviceStats *ds, BlockBackend *blk) 430 { 431 BlockAcctStats *stats = blk_get_stats(blk); 432 BlockAcctTimedStats *ts = NULL; 433 434 ds->rd_bytes = stats->nr_bytes[BLOCK_ACCT_READ]; 435 ds->wr_bytes = stats->nr_bytes[BLOCK_ACCT_WRITE]; 436 ds->rd_operations = stats->nr_ops[BLOCK_ACCT_READ]; 437 ds->wr_operations = stats->nr_ops[BLOCK_ACCT_WRITE]; 438 439 ds->failed_rd_operations = stats->failed_ops[BLOCK_ACCT_READ]; 440 ds->failed_wr_operations = stats->failed_ops[BLOCK_ACCT_WRITE]; 441 ds->failed_flush_operations = stats->failed_ops[BLOCK_ACCT_FLUSH]; 442 443 ds->invalid_rd_operations = stats->invalid_ops[BLOCK_ACCT_READ]; 444 ds->invalid_wr_operations = stats->invalid_ops[BLOCK_ACCT_WRITE]; 445 ds->invalid_flush_operations = 446 stats->invalid_ops[BLOCK_ACCT_FLUSH]; 447 448 ds->rd_merged = stats->merged[BLOCK_ACCT_READ]; 449 ds->wr_merged = stats->merged[BLOCK_ACCT_WRITE]; 450 ds->flush_operations = stats->nr_ops[BLOCK_ACCT_FLUSH]; 451 ds->wr_total_time_ns = stats->total_time_ns[BLOCK_ACCT_WRITE]; 452 ds->rd_total_time_ns = stats->total_time_ns[BLOCK_ACCT_READ]; 453 ds->flush_total_time_ns = stats->total_time_ns[BLOCK_ACCT_FLUSH]; 454 455 ds->has_idle_time_ns = stats->last_access_time_ns > 0; 456 if (ds->has_idle_time_ns) { 457 ds->idle_time_ns = block_acct_idle_time_ns(stats); 458 } 459 460 ds->account_invalid = stats->account_invalid; 461 ds->account_failed = stats->account_failed; 462 463 while ((ts = block_acct_interval_next(stats, ts))) { 464 BlockDeviceTimedStatsList *timed_stats = 465 g_malloc0(sizeof(*timed_stats)); 466 BlockDeviceTimedStats *dev_stats = g_malloc0(sizeof(*dev_stats)); 467 timed_stats->next = ds->timed_stats; 468 timed_stats->value = dev_stats; 469 ds->timed_stats = timed_stats; 470 471 TimedAverage *rd = &ts->latency[BLOCK_ACCT_READ]; 472 TimedAverage *wr = &ts->latency[BLOCK_ACCT_WRITE]; 473 TimedAverage *fl = &ts->latency[BLOCK_ACCT_FLUSH]; 474 475 dev_stats->interval_length = ts->interval_length; 476 477 dev_stats->min_rd_latency_ns = timed_average_min(rd); 478 dev_stats->max_rd_latency_ns = timed_average_max(rd); 479 dev_stats->avg_rd_latency_ns = timed_average_avg(rd); 480 481 dev_stats->min_wr_latency_ns = timed_average_min(wr); 482 dev_stats->max_wr_latency_ns = timed_average_max(wr); 483 dev_stats->avg_wr_latency_ns = timed_average_avg(wr); 484 485 dev_stats->min_flush_latency_ns = timed_average_min(fl); 486 dev_stats->max_flush_latency_ns = timed_average_max(fl); 487 dev_stats->avg_flush_latency_ns = timed_average_avg(fl); 488 489 dev_stats->avg_rd_queue_depth = 490 block_acct_queue_depth(ts, BLOCK_ACCT_READ); 491 dev_stats->avg_wr_queue_depth = 492 block_acct_queue_depth(ts, BLOCK_ACCT_WRITE); 493 } 494 495 bdrv_latency_histogram_stats(&stats->latency_histogram[BLOCK_ACCT_READ], 496 &ds->has_x_rd_latency_histogram, 497 &ds->x_rd_latency_histogram); 498 bdrv_latency_histogram_stats(&stats->latency_histogram[BLOCK_ACCT_WRITE], 499 &ds->has_x_wr_latency_histogram, 500 &ds->x_wr_latency_histogram); 501 bdrv_latency_histogram_stats(&stats->latency_histogram[BLOCK_ACCT_FLUSH], 502 &ds->has_x_flush_latency_histogram, 503 &ds->x_flush_latency_histogram); 504 } 505 506 static BlockStats *bdrv_query_bds_stats(BlockDriverState *bs, 507 bool blk_level) 508 { 509 BlockStats *s = NULL; 510 511 s = g_malloc0(sizeof(*s)); 512 s->stats = g_malloc0(sizeof(*s->stats)); 513 514 if (!bs) { 515 return s; 516 } 517 518 /* Skip automatically inserted nodes that the user isn't aware of in 519 * a BlockBackend-level command. Stay at the exact node for a node-level 520 * command. */ 521 while (blk_level && bs->drv && bs->implicit) { 522 bs = backing_bs(bs); 523 assert(bs); 524 } 525 526 if (bdrv_get_node_name(bs)[0]) { 527 s->has_node_name = true; 528 s->node_name = g_strdup(bdrv_get_node_name(bs)); 529 } 530 531 s->stats->wr_highest_offset = stat64_get(&bs->wr_highest_offset); 532 533 if (bs->file) { 534 s->has_parent = true; 535 s->parent = bdrv_query_bds_stats(bs->file->bs, blk_level); 536 } 537 538 if (blk_level && bs->backing) { 539 s->has_backing = true; 540 s->backing = bdrv_query_bds_stats(bs->backing->bs, blk_level); 541 } 542 543 return s; 544 } 545 546 BlockInfoList *qmp_query_block(Error **errp) 547 { 548 BlockInfoList *head = NULL, **p_next = &head; 549 BlockBackend *blk; 550 Error *local_err = NULL; 551 552 for (blk = blk_all_next(NULL); blk; blk = blk_all_next(blk)) { 553 BlockInfoList *info; 554 555 if (!*blk_name(blk) && !blk_get_attached_dev(blk)) { 556 continue; 557 } 558 559 info = g_malloc0(sizeof(*info)); 560 bdrv_query_info(blk, &info->value, &local_err); 561 if (local_err) { 562 error_propagate(errp, local_err); 563 g_free(info); 564 qapi_free_BlockInfoList(head); 565 return NULL; 566 } 567 568 *p_next = info; 569 p_next = &info->next; 570 } 571 572 return head; 573 } 574 575 BlockStatsList *qmp_query_blockstats(bool has_query_nodes, 576 bool query_nodes, 577 Error **errp) 578 { 579 BlockStatsList *head = NULL, **p_next = &head; 580 BlockBackend *blk; 581 BlockDriverState *bs; 582 583 /* Just to be safe if query_nodes is not always initialized */ 584 if (has_query_nodes && query_nodes) { 585 for (bs = bdrv_next_node(NULL); bs; bs = bdrv_next_node(bs)) { 586 BlockStatsList *info = g_malloc0(sizeof(*info)); 587 AioContext *ctx = bdrv_get_aio_context(bs); 588 589 aio_context_acquire(ctx); 590 info->value = bdrv_query_bds_stats(bs, false); 591 aio_context_release(ctx); 592 593 *p_next = info; 594 p_next = &info->next; 595 } 596 } else { 597 for (blk = blk_all_next(NULL); blk; blk = blk_all_next(blk)) { 598 BlockStatsList *info; 599 AioContext *ctx = blk_get_aio_context(blk); 600 BlockStats *s; 601 char *qdev; 602 603 if (!*blk_name(blk) && !blk_get_attached_dev(blk)) { 604 continue; 605 } 606 607 aio_context_acquire(ctx); 608 s = bdrv_query_bds_stats(blk_bs(blk), true); 609 s->has_device = true; 610 s->device = g_strdup(blk_name(blk)); 611 612 qdev = blk_get_attached_dev_id(blk); 613 if (qdev && *qdev) { 614 s->has_qdev = true; 615 s->qdev = qdev; 616 } else { 617 g_free(qdev); 618 } 619 620 bdrv_query_blk_stats(s->stats, blk); 621 aio_context_release(ctx); 622 623 info = g_malloc0(sizeof(*info)); 624 info->value = s; 625 *p_next = info; 626 p_next = &info->next; 627 } 628 } 629 630 return head; 631 } 632 633 #define NB_SUFFIXES 4 634 635 static char *get_human_readable_size(char *buf, int buf_size, int64_t size) 636 { 637 static const char suffixes[NB_SUFFIXES] = {'K', 'M', 'G', 'T'}; 638 int64_t base; 639 int i; 640 641 if (size <= 999) { 642 snprintf(buf, buf_size, "%" PRId64, size); 643 } else { 644 base = 1024; 645 for (i = 0; i < NB_SUFFIXES; i++) { 646 if (size < (10 * base)) { 647 snprintf(buf, buf_size, "%0.1f%c", 648 (double)size / base, 649 suffixes[i]); 650 break; 651 } else if (size < (1000 * base) || i == (NB_SUFFIXES - 1)) { 652 snprintf(buf, buf_size, "%" PRId64 "%c", 653 ((size + (base >> 1)) / base), 654 suffixes[i]); 655 break; 656 } 657 base = base * 1024; 658 } 659 } 660 return buf; 661 } 662 663 void bdrv_snapshot_dump(fprintf_function func_fprintf, void *f, 664 QEMUSnapshotInfo *sn) 665 { 666 char buf1[128], date_buf[128], clock_buf[128]; 667 struct tm tm; 668 time_t ti; 669 int64_t secs; 670 671 if (!sn) { 672 func_fprintf(f, 673 "%-10s%-20s%7s%20s%15s", 674 "ID", "TAG", "VM SIZE", "DATE", "VM CLOCK"); 675 } else { 676 ti = sn->date_sec; 677 localtime_r(&ti, &tm); 678 strftime(date_buf, sizeof(date_buf), 679 "%Y-%m-%d %H:%M:%S", &tm); 680 secs = sn->vm_clock_nsec / 1000000000; 681 snprintf(clock_buf, sizeof(clock_buf), 682 "%02d:%02d:%02d.%03d", 683 (int)(secs / 3600), 684 (int)((secs / 60) % 60), 685 (int)(secs % 60), 686 (int)((sn->vm_clock_nsec / 1000000) % 1000)); 687 func_fprintf(f, 688 "%-10s%-20s%7s%20s%15s", 689 sn->id_str, sn->name, 690 get_human_readable_size(buf1, sizeof(buf1), 691 sn->vm_state_size), 692 date_buf, 693 clock_buf); 694 } 695 } 696 697 static void dump_qdict(fprintf_function func_fprintf, void *f, int indentation, 698 QDict *dict); 699 static void dump_qlist(fprintf_function func_fprintf, void *f, int indentation, 700 QList *list); 701 702 static void dump_qobject(fprintf_function func_fprintf, void *f, 703 int comp_indent, QObject *obj) 704 { 705 switch (qobject_type(obj)) { 706 case QTYPE_QNUM: { 707 QNum *value = qobject_to(QNum, obj); 708 char *tmp = qnum_to_string(value); 709 func_fprintf(f, "%s", tmp); 710 g_free(tmp); 711 break; 712 } 713 case QTYPE_QSTRING: { 714 QString *value = qobject_to(QString, obj); 715 func_fprintf(f, "%s", qstring_get_str(value)); 716 break; 717 } 718 case QTYPE_QDICT: { 719 QDict *value = qobject_to(QDict, obj); 720 dump_qdict(func_fprintf, f, comp_indent, value); 721 break; 722 } 723 case QTYPE_QLIST: { 724 QList *value = qobject_to(QList, obj); 725 dump_qlist(func_fprintf, f, comp_indent, value); 726 break; 727 } 728 case QTYPE_QBOOL: { 729 QBool *value = qobject_to(QBool, obj); 730 func_fprintf(f, "%s", qbool_get_bool(value) ? "true" : "false"); 731 break; 732 } 733 default: 734 abort(); 735 } 736 } 737 738 static void dump_qlist(fprintf_function func_fprintf, void *f, int indentation, 739 QList *list) 740 { 741 const QListEntry *entry; 742 int i = 0; 743 744 for (entry = qlist_first(list); entry; entry = qlist_next(entry), i++) { 745 QType type = qobject_type(entry->value); 746 bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); 747 func_fprintf(f, "%*s[%i]:%c", indentation * 4, "", i, 748 composite ? '\n' : ' '); 749 dump_qobject(func_fprintf, f, indentation + 1, entry->value); 750 if (!composite) { 751 func_fprintf(f, "\n"); 752 } 753 } 754 } 755 756 static void dump_qdict(fprintf_function func_fprintf, void *f, int indentation, 757 QDict *dict) 758 { 759 const QDictEntry *entry; 760 761 for (entry = qdict_first(dict); entry; entry = qdict_next(dict, entry)) { 762 QType type = qobject_type(entry->value); 763 bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); 764 char *key = g_malloc(strlen(entry->key) + 1); 765 int i; 766 767 /* replace dashes with spaces in key (variable) names */ 768 for (i = 0; entry->key[i]; i++) { 769 key[i] = entry->key[i] == '-' ? ' ' : entry->key[i]; 770 } 771 key[i] = 0; 772 func_fprintf(f, "%*s%s:%c", indentation * 4, "", key, 773 composite ? '\n' : ' '); 774 dump_qobject(func_fprintf, f, indentation + 1, entry->value); 775 if (!composite) { 776 func_fprintf(f, "\n"); 777 } 778 g_free(key); 779 } 780 } 781 782 void bdrv_image_info_specific_dump(fprintf_function func_fprintf, void *f, 783 ImageInfoSpecific *info_spec) 784 { 785 QObject *obj, *data; 786 Visitor *v = qobject_output_visitor_new(&obj); 787 788 visit_type_ImageInfoSpecific(v, NULL, &info_spec, &error_abort); 789 visit_complete(v, &obj); 790 data = qdict_get(qobject_to(QDict, obj), "data"); 791 dump_qobject(func_fprintf, f, 1, data); 792 qobject_unref(obj); 793 visit_free(v); 794 } 795 796 void bdrv_image_info_dump(fprintf_function func_fprintf, void *f, 797 ImageInfo *info) 798 { 799 char size_buf[128], dsize_buf[128]; 800 if (!info->has_actual_size) { 801 snprintf(dsize_buf, sizeof(dsize_buf), "unavailable"); 802 } else { 803 get_human_readable_size(dsize_buf, sizeof(dsize_buf), 804 info->actual_size); 805 } 806 get_human_readable_size(size_buf, sizeof(size_buf), info->virtual_size); 807 func_fprintf(f, 808 "image: %s\n" 809 "file format: %s\n" 810 "virtual size: %s (%" PRId64 " bytes)\n" 811 "disk size: %s\n", 812 info->filename, info->format, size_buf, 813 info->virtual_size, 814 dsize_buf); 815 816 if (info->has_encrypted && info->encrypted) { 817 func_fprintf(f, "encrypted: yes\n"); 818 } 819 820 if (info->has_cluster_size) { 821 func_fprintf(f, "cluster_size: %" PRId64 "\n", 822 info->cluster_size); 823 } 824 825 if (info->has_dirty_flag && info->dirty_flag) { 826 func_fprintf(f, "cleanly shut down: no\n"); 827 } 828 829 if (info->has_backing_filename) { 830 func_fprintf(f, "backing file: %s", info->backing_filename); 831 if (!info->has_full_backing_filename) { 832 func_fprintf(f, " (cannot determine actual path)"); 833 } else if (strcmp(info->backing_filename, 834 info->full_backing_filename) != 0) { 835 func_fprintf(f, " (actual path: %s)", info->full_backing_filename); 836 } 837 func_fprintf(f, "\n"); 838 if (info->has_backing_filename_format) { 839 func_fprintf(f, "backing file format: %s\n", 840 info->backing_filename_format); 841 } 842 } 843 844 if (info->has_snapshots) { 845 SnapshotInfoList *elem; 846 847 func_fprintf(f, "Snapshot list:\n"); 848 bdrv_snapshot_dump(func_fprintf, f, NULL); 849 func_fprintf(f, "\n"); 850 851 /* Ideally bdrv_snapshot_dump() would operate on SnapshotInfoList but 852 * we convert to the block layer's native QEMUSnapshotInfo for now. 853 */ 854 for (elem = info->snapshots; elem; elem = elem->next) { 855 QEMUSnapshotInfo sn = { 856 .vm_state_size = elem->value->vm_state_size, 857 .date_sec = elem->value->date_sec, 858 .date_nsec = elem->value->date_nsec, 859 .vm_clock_nsec = elem->value->vm_clock_sec * 1000000000ULL + 860 elem->value->vm_clock_nsec, 861 }; 862 863 pstrcpy(sn.id_str, sizeof(sn.id_str), elem->value->id); 864 pstrcpy(sn.name, sizeof(sn.name), elem->value->name); 865 bdrv_snapshot_dump(func_fprintf, f, &sn); 866 func_fprintf(f, "\n"); 867 } 868 } 869 870 if (info->has_format_specific) { 871 func_fprintf(f, "Format specific information:\n"); 872 bdrv_image_info_specific_dump(func_fprintf, f, info->format_specific); 873 } 874 } 875