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