2 * Blockdev HMP commands
5 * Anthony Liguori <aliguori@us.ibm.com>
7 * Copyright (c) 2003-2008 Fabrice Bellard
9 * This work is licensed under the terms of the GNU GPL, version 2.
10 * See the COPYING file in the top-level directory.
11 * Contributions after 2012-01-13 are licensed under the terms of the
12 * GNU GPL, version 2 or (at your option) any later version.
14 * This file incorporates work covered by the following copyright and
17 * Copyright (c) 2003-2008 Fabrice Bellard
19 * Permission is hereby granted, free of charge, to any person obtaining a copy
20 * of this software and associated documentation files (the "Software"), to deal
21 * in the Software without restriction, including without limitation the rights
22 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
23 * copies of the Software, and to permit persons to whom the Software is
24 * furnished to do so, subject to the following conditions:
26 * The above copyright notice and this permission notice shall be included in
27 * all copies or substantial portions of the Software.
29 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
30 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
31 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
32 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
33 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
34 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
38 #include "qemu/osdep.h"
39 #include "hw/boards.h"
40 #include "sysemu/block-backend.h"
41 #include "sysemu/blockdev.h"
42 #include "qapi/qapi-commands-block.h"
43 #include "qapi/qmp/qdict.h"
44 #include "qapi/error.h"
45 #include "qapi/qmp/qerror.h"
46 #include "qemu/config-file.h"
47 #include "qemu/option.h"
48 #include "qemu/sockets.h"
49 #include "qemu/cutils.h"
50 #include "sysemu/sysemu.h"
51 #include "monitor/monitor.h"
52 #include "monitor/hmp.h"
53 #include "block/nbd.h"
54 #include "block/qapi.h"
55 #include "block/block_int.h"
56 #include "block/block-hmp-cmds.h"
59 static void hmp_drive_add_node(Monitor
*mon
, const char *optstr
)
63 Error
*local_err
= NULL
;
65 opts
= qemu_opts_parse_noisily(&qemu_drive_opts
, optstr
, false);
70 qdict
= qemu_opts_to_qdict(opts
, NULL
);
72 if (!qdict_get_try_str(qdict
, "node-name")) {
74 error_report("'node-name' needs to be specified");
78 BlockDriverState
*bs
= bds_tree_init(qdict
, &local_err
);
80 error_report_err(local_err
);
84 bdrv_set_monitor_owned(bs
);
89 void hmp_drive_add(Monitor
*mon
, const QDict
*qdict
)
95 const char *optstr
= qdict_get_str(qdict
, "opts");
96 bool node
= qdict_get_try_bool(qdict
, "node", false);
99 hmp_drive_add_node(mon
, optstr
);
103 opts
= drive_def(optstr
);
107 mc
= MACHINE_GET_CLASS(current_machine
);
108 dinfo
= drive_new(opts
, mc
->block_default_type
, &err
);
110 error_report_err(err
);
119 switch (dinfo
->type
) {
121 monitor_printf(mon
, "OK\n");
124 monitor_printf(mon
, "Can't hot-add drive to type %d\n", dinfo
->type
);
131 BlockBackend
*blk
= blk_by_legacy_dinfo(dinfo
);
132 monitor_remove_blk(blk
);
137 void hmp_drive_del(Monitor
*mon
, const QDict
*qdict
)
139 const char *id
= qdict_get_str(qdict
, "id");
141 BlockDriverState
*bs
;
142 AioContext
*aio_context
;
143 Error
*local_err
= NULL
;
145 bs
= bdrv_find_node(id
);
147 qmp_blockdev_del(id
, &local_err
);
149 error_report_err(local_err
);
154 blk
= blk_by_name(id
);
156 error_report("Device '%s' not found", id
);
160 if (!blk_legacy_dinfo(blk
)) {
161 error_report("Deleting device added with blockdev-add"
162 " is not supported");
166 aio_context
= blk_get_aio_context(blk
);
167 aio_context_acquire(aio_context
);
171 if (bdrv_op_is_blocked(bs
, BLOCK_OP_TYPE_DRIVE_DEL
, &local_err
)) {
172 error_report_err(local_err
);
173 aio_context_release(aio_context
);
180 /* Make the BlockBackend and the attached BlockDriverState anonymous */
181 monitor_remove_blk(blk
);
184 * If this BlockBackend has a device attached to it, its refcount will be
185 * decremented when the device is removed; otherwise we have to do so here.
187 if (blk_get_attached_dev(blk
)) {
188 /* Further I/O must not pause the guest */
189 blk_set_on_error(blk
, BLOCKDEV_ON_ERROR_REPORT
,
190 BLOCKDEV_ON_ERROR_REPORT
);
195 aio_context_release(aio_context
);
198 void hmp_commit(Monitor
*mon
, const QDict
*qdict
)
200 const char *device
= qdict_get_str(qdict
, "device");
204 if (!strcmp(device
, "all")) {
205 ret
= blk_commit_all();
207 BlockDriverState
*bs
;
208 AioContext
*aio_context
;
210 blk
= blk_by_name(device
);
212 error_report("Device '%s' not found", device
);
215 if (!blk_is_available(blk
)) {
216 error_report("Device '%s' has no medium", device
);
221 aio_context
= bdrv_get_aio_context(bs
);
222 aio_context_acquire(aio_context
);
224 ret
= bdrv_commit(bs
);
226 aio_context_release(aio_context
);
229 error_report("'commit' error for '%s': %s", device
, strerror(-ret
));
233 void hmp_drive_mirror(Monitor
*mon
, const QDict
*qdict
)
235 const char *filename
= qdict_get_str(qdict
, "target");
236 const char *format
= qdict_get_try_str(qdict
, "format");
237 bool reuse
= qdict_get_try_bool(qdict
, "reuse", false);
238 bool full
= qdict_get_try_bool(qdict
, "full", false);
240 DriveMirror mirror
= {
241 .device
= (char *)qdict_get_str(qdict
, "device"),
242 .target
= (char *)filename
,
243 .has_format
= !!format
,
244 .format
= (char *)format
,
245 .sync
= full
? MIRROR_SYNC_MODE_FULL
: MIRROR_SYNC_MODE_TOP
,
247 .mode
= reuse
? NEW_IMAGE_MODE_EXISTING
: NEW_IMAGE_MODE_ABSOLUTE_PATHS
,
252 error_setg(&err
, QERR_MISSING_PARAMETER
, "target");
253 hmp_handle_error(mon
, err
);
256 qmp_drive_mirror(&mirror
, &err
);
257 hmp_handle_error(mon
, err
);
260 void hmp_drive_backup(Monitor
*mon
, const QDict
*qdict
)
262 const char *device
= qdict_get_str(qdict
, "device");
263 const char *filename
= qdict_get_str(qdict
, "target");
264 const char *format
= qdict_get_try_str(qdict
, "format");
265 bool reuse
= qdict_get_try_bool(qdict
, "reuse", false);
266 bool full
= qdict_get_try_bool(qdict
, "full", false);
267 bool compress
= qdict_get_try_bool(qdict
, "compress", false);
269 DriveBackup backup
= {
270 .device
= (char *)device
,
271 .target
= (char *)filename
,
272 .has_format
= !!format
,
273 .format
= (char *)format
,
274 .sync
= full
? MIRROR_SYNC_MODE_FULL
: MIRROR_SYNC_MODE_TOP
,
276 .mode
= reuse
? NEW_IMAGE_MODE_EXISTING
: NEW_IMAGE_MODE_ABSOLUTE_PATHS
,
277 .has_compress
= !!compress
,
278 .compress
= compress
,
282 error_setg(&err
, QERR_MISSING_PARAMETER
, "target");
283 hmp_handle_error(mon
, err
);
287 qmp_drive_backup(&backup
, &err
);
288 hmp_handle_error(mon
, err
);
291 void hmp_block_job_set_speed(Monitor
*mon
, const QDict
*qdict
)
294 const char *device
= qdict_get_str(qdict
, "device");
295 int64_t value
= qdict_get_int(qdict
, "speed");
297 qmp_block_job_set_speed(device
, value
, &error
);
299 hmp_handle_error(mon
, error
);
302 void hmp_block_job_cancel(Monitor
*mon
, const QDict
*qdict
)
305 const char *device
= qdict_get_str(qdict
, "device");
306 bool force
= qdict_get_try_bool(qdict
, "force", false);
308 qmp_block_job_cancel(device
, true, force
, &error
);
310 hmp_handle_error(mon
, error
);
313 void hmp_block_job_pause(Monitor
*mon
, const QDict
*qdict
)
316 const char *device
= qdict_get_str(qdict
, "device");
318 qmp_block_job_pause(device
, &error
);
320 hmp_handle_error(mon
, error
);
323 void hmp_block_job_resume(Monitor
*mon
, const QDict
*qdict
)
326 const char *device
= qdict_get_str(qdict
, "device");
328 qmp_block_job_resume(device
, &error
);
330 hmp_handle_error(mon
, error
);
333 void hmp_block_job_complete(Monitor
*mon
, const QDict
*qdict
)
336 const char *device
= qdict_get_str(qdict
, "device");
338 qmp_block_job_complete(device
, &error
);
340 hmp_handle_error(mon
, error
);
343 void hmp_snapshot_blkdev(Monitor
*mon
, const QDict
*qdict
)
345 const char *device
= qdict_get_str(qdict
, "device");
346 const char *filename
= qdict_get_try_str(qdict
, "snapshot-file");
347 const char *format
= qdict_get_try_str(qdict
, "format");
348 bool reuse
= qdict_get_try_bool(qdict
, "reuse", false);
349 enum NewImageMode mode
;
354 * In the future, if 'snapshot-file' is not specified, the snapshot
355 * will be taken internally. Today it's actually required.
357 error_setg(&err
, QERR_MISSING_PARAMETER
, "snapshot-file");
358 hmp_handle_error(mon
, err
);
362 mode
= reuse
? NEW_IMAGE_MODE_EXISTING
: NEW_IMAGE_MODE_ABSOLUTE_PATHS
;
363 qmp_blockdev_snapshot_sync(true, device
, false, NULL
,
364 filename
, false, NULL
,
367 hmp_handle_error(mon
, err
);
370 void hmp_snapshot_blkdev_internal(Monitor
*mon
, const QDict
*qdict
)
372 const char *device
= qdict_get_str(qdict
, "device");
373 const char *name
= qdict_get_str(qdict
, "name");
376 qmp_blockdev_snapshot_internal_sync(device
, name
, &err
);
377 hmp_handle_error(mon
, err
);
380 void hmp_snapshot_delete_blkdev_internal(Monitor
*mon
, const QDict
*qdict
)
382 const char *device
= qdict_get_str(qdict
, "device");
383 const char *name
= qdict_get_str(qdict
, "name");
384 const char *id
= qdict_get_try_str(qdict
, "id");
387 qmp_blockdev_snapshot_delete_internal_sync(device
, !!id
, id
,
389 hmp_handle_error(mon
, err
);
392 void hmp_nbd_server_start(Monitor
*mon
, const QDict
*qdict
)
394 const char *uri
= qdict_get_str(qdict
, "uri");
395 bool writable
= qdict_get_try_bool(qdict
, "writable", false);
396 bool all
= qdict_get_try_bool(qdict
, "all", false);
397 Error
*local_err
= NULL
;
398 BlockInfoList
*block_list
, *info
;
400 BlockExportNbd export
;
402 if (writable
&& !all
) {
403 error_setg(&local_err
, "-w only valid together with -a");
407 /* First check if the address is valid and start the server. */
408 addr
= socket_parse(uri
, &local_err
);
409 if (local_err
!= NULL
) {
413 nbd_server_start(addr
, NULL
, NULL
, &local_err
);
414 qapi_free_SocketAddress(addr
);
415 if (local_err
!= NULL
) {
423 /* Then try adding all block devices. If one fails, close all and
426 block_list
= qmp_query_block(NULL
);
428 for (info
= block_list
; info
; info
= info
->next
) {
429 if (!info
->value
->has_inserted
) {
433 export
= (BlockExportNbd
) {
434 .device
= info
->value
->device
,
435 .has_writable
= true,
436 .writable
= writable
,
439 qmp_nbd_server_add(&export
, &local_err
);
441 if (local_err
!= NULL
) {
442 qmp_nbd_server_stop(NULL
);
447 qapi_free_BlockInfoList(block_list
);
450 hmp_handle_error(mon
, local_err
);
453 void hmp_nbd_server_add(Monitor
*mon
, const QDict
*qdict
)
455 const char *device
= qdict_get_str(qdict
, "device");
456 const char *name
= qdict_get_try_str(qdict
, "name");
457 bool writable
= qdict_get_try_bool(qdict
, "writable", false);
458 Error
*local_err
= NULL
;
460 BlockExportNbd export
= {
461 .device
= (char *) device
,
463 .name
= (char *) name
,
464 .has_writable
= true,
465 .writable
= writable
,
468 qmp_nbd_server_add(&export
, &local_err
);
469 hmp_handle_error(mon
, local_err
);
472 void hmp_nbd_server_remove(Monitor
*mon
, const QDict
*qdict
)
474 const char *name
= qdict_get_str(qdict
, "name");
475 bool force
= qdict_get_try_bool(qdict
, "force", false);
478 /* Rely on NBD_SERVER_REMOVE_MODE_SAFE being the default */
479 qmp_nbd_server_remove(name
, force
, NBD_SERVER_REMOVE_MODE_HARD
, &err
);
480 hmp_handle_error(mon
, err
);
483 void hmp_nbd_server_stop(Monitor
*mon
, const QDict
*qdict
)
487 qmp_nbd_server_stop(&err
);
488 hmp_handle_error(mon
, err
);
491 void hmp_block_resize(Monitor
*mon
, const QDict
*qdict
)
493 const char *device
= qdict_get_str(qdict
, "device");
494 int64_t size
= qdict_get_int(qdict
, "size");
497 qmp_block_resize(true, device
, false, NULL
, size
, &err
);
498 hmp_handle_error(mon
, err
);
501 void hmp_block_stream(Monitor
*mon
, const QDict
*qdict
)
504 const char *device
= qdict_get_str(qdict
, "device");
505 const char *base
= qdict_get_try_str(qdict
, "base");
506 int64_t speed
= qdict_get_try_int(qdict
, "speed", 0);
508 qmp_block_stream(true, device
, device
, base
!= NULL
, base
, false, NULL
,
509 false, NULL
, qdict_haskey(qdict
, "speed"), speed
, true,
510 BLOCKDEV_ON_ERROR_REPORT
, false, false, false, false,
513 hmp_handle_error(mon
, error
);
516 void hmp_block_passwd(Monitor
*mon
, const QDict
*qdict
)
518 const char *device
= qdict_get_str(qdict
, "device");
519 const char *password
= qdict_get_str(qdict
, "password");
522 qmp_block_passwd(true, device
, false, NULL
, password
, &err
);
523 hmp_handle_error(mon
, err
);
526 void hmp_block_set_io_throttle(Monitor
*mon
, const QDict
*qdict
)
529 char *device
= (char *) qdict_get_str(qdict
, "device");
530 BlockIOThrottle throttle
= {
531 .bps
= qdict_get_int(qdict
, "bps"),
532 .bps_rd
= qdict_get_int(qdict
, "bps_rd"),
533 .bps_wr
= qdict_get_int(qdict
, "bps_wr"),
534 .iops
= qdict_get_int(qdict
, "iops"),
535 .iops_rd
= qdict_get_int(qdict
, "iops_rd"),
536 .iops_wr
= qdict_get_int(qdict
, "iops_wr"),
540 * qmp_block_set_io_throttle has separate parameters for the
541 * (deprecated) block device name and the qdev ID but the HMP
542 * version has only one, so we must decide which one to pass.
544 if (blk_by_name(device
)) {
545 throttle
.has_device
= true;
546 throttle
.device
= device
;
548 throttle
.has_id
= true;
549 throttle
.id
= device
;
552 qmp_block_set_io_throttle(&throttle
, &err
);
553 hmp_handle_error(mon
, err
);
556 void hmp_eject(Monitor
*mon
, const QDict
*qdict
)
558 bool force
= qdict_get_try_bool(qdict
, "force", false);
559 const char *device
= qdict_get_str(qdict
, "device");
562 qmp_eject(true, device
, false, NULL
, true, force
, &err
);
563 hmp_handle_error(mon
, err
);
566 void hmp_qemu_io(Monitor
*mon
, const QDict
*qdict
)
569 BlockBackend
*local_blk
= NULL
;
570 bool qdev
= qdict_get_try_bool(qdict
, "qdev", false);
571 const char *device
= qdict_get_str(qdict
, "device");
572 const char *command
= qdict_get_str(qdict
, "command");
577 blk
= blk_by_qdev_id(device
, &err
);
582 blk
= blk_by_name(device
);
584 BlockDriverState
*bs
= bdrv_lookup_bs(NULL
, device
, &err
);
586 blk
= local_blk
= blk_new(bdrv_get_aio_context(bs
),
588 ret
= blk_insert_bs(blk
, bs
, &err
);
599 * Notably absent: Proper permission management. This is sad, but it seems
600 * almost impossible to achieve without changing the semantics and thereby
601 * limiting the use cases of the qemu-io HMP command.
603 * In an ideal world we would unconditionally create a new BlockBackend for
604 * qemuio_command(), but we have commands like 'reopen' and want them to
605 * take effect on the exact BlockBackend whose name the user passed instead
606 * of just on a temporary copy of it.
608 * Another problem is that deleting the temporary BlockBackend involves
609 * draining all requests on it first, but some qemu-iotests cases want to
610 * issue multiple aio_read/write requests and expect them to complete in
611 * the background while the monitor has already returned.
613 * This is also what prevents us from saving the original permissions and
614 * restoring them later: We can't revoke permissions until all requests
615 * have completed, and we don't know when that is nor can we really let
616 * anything else run before we have revoken them to avoid race conditions.
618 * What happens now is that command() in qemu-io-cmds.c can extend the
619 * permissions if necessary for the qemu-io command. And they simply stay
620 * extended, possibly resulting in a read-only guest device keeping write
621 * permissions. Ugly, but it appears to be the lesser evil.
623 qemuio_command(blk
, command
);
626 blk_unref(local_blk
);
627 hmp_handle_error(mon
, err
);
630 static void print_block_info(Monitor
*mon
, BlockInfo
*info
,
631 BlockDeviceInfo
*inserted
, bool verbose
)
633 ImageInfo
*image_info
;
635 assert(!info
|| !info
->has_inserted
|| info
->inserted
== inserted
);
637 if (info
&& *info
->device
) {
638 monitor_printf(mon
, "%s", info
->device
);
639 if (inserted
&& inserted
->has_node_name
) {
640 monitor_printf(mon
, " (%s)", inserted
->node_name
);
643 assert(info
|| inserted
);
644 monitor_printf(mon
, "%s",
645 inserted
&& inserted
->has_node_name
? inserted
->node_name
646 : info
&& info
->has_qdev
? info
->qdev
651 monitor_printf(mon
, ": %s (%s%s%s)\n",
654 inserted
->ro
? ", read-only" : "",
655 inserted
->encrypted
? ", encrypted" : "");
657 monitor_printf(mon
, ": [not inserted]\n");
661 if (info
->has_qdev
) {
662 monitor_printf(mon
, " Attached to: %s\n", info
->qdev
);
664 if (info
->has_io_status
&& info
->io_status
!= BLOCK_DEVICE_IO_STATUS_OK
) {
665 monitor_printf(mon
, " I/O status: %s\n",
666 BlockDeviceIoStatus_str(info
->io_status
));
669 if (info
->removable
) {
670 monitor_printf(mon
, " Removable device: %slocked, tray %s\n",
671 info
->locked
? "" : "not ",
672 info
->tray_open
? "open" : "closed");
681 monitor_printf(mon
, " Cache mode: %s%s%s\n",
682 inserted
->cache
->writeback
? "writeback" : "writethrough",
683 inserted
->cache
->direct
? ", direct" : "",
684 inserted
->cache
->no_flush
? ", ignore flushes" : "");
686 if (inserted
->has_backing_file
) {
689 "(chain depth: %" PRId64
")\n",
690 inserted
->backing_file
,
691 inserted
->backing_file_depth
);
694 if (inserted
->detect_zeroes
!= BLOCKDEV_DETECT_ZEROES_OPTIONS_OFF
) {
695 monitor_printf(mon
, " Detect zeroes: %s\n",
696 BlockdevDetectZeroesOptions_str(inserted
->detect_zeroes
));
699 if (inserted
->bps
|| inserted
->bps_rd
|| inserted
->bps_wr
||
700 inserted
->iops
|| inserted
->iops_rd
|| inserted
->iops_wr
)
702 monitor_printf(mon
, " I/O throttling: bps=%" PRId64
703 " bps_rd=%" PRId64
" bps_wr=%" PRId64
705 " bps_rd_max=%" PRId64
706 " bps_wr_max=%" PRId64
707 " iops=%" PRId64
" iops_rd=%" PRId64
710 " iops_rd_max=%" PRId64
711 " iops_wr_max=%" PRId64
712 " iops_size=%" PRId64
718 inserted
->bps_rd_max
,
719 inserted
->bps_wr_max
,
724 inserted
->iops_rd_max
,
725 inserted
->iops_wr_max
,
731 monitor_printf(mon
, "\nImages:\n");
732 image_info
= inserted
->image
;
734 bdrv_image_info_dump(image_info
);
735 if (image_info
->has_backing_image
) {
736 image_info
= image_info
->backing_image
;
744 void hmp_info_block(Monitor
*mon
, const QDict
*qdict
)
746 BlockInfoList
*block_list
, *info
;
747 BlockDeviceInfoList
*blockdev_list
, *blockdev
;
748 const char *device
= qdict_get_try_str(qdict
, "device");
749 bool verbose
= qdict_get_try_bool(qdict
, "verbose", false);
750 bool nodes
= qdict_get_try_bool(qdict
, "nodes", false);
751 bool printed
= false;
753 /* Print BlockBackend information */
755 block_list
= qmp_query_block(NULL
);
760 for (info
= block_list
; info
; info
= info
->next
) {
761 if (device
&& strcmp(device
, info
->value
->device
)) {
765 if (info
!= block_list
) {
766 monitor_printf(mon
, "\n");
769 print_block_info(mon
, info
->value
, info
->value
->has_inserted
770 ? info
->value
->inserted
: NULL
,
775 qapi_free_BlockInfoList(block_list
);
777 if ((!device
&& !nodes
) || printed
) {
781 /* Print node information */
782 blockdev_list
= qmp_query_named_block_nodes(false, false, NULL
);
783 for (blockdev
= blockdev_list
; blockdev
; blockdev
= blockdev
->next
) {
784 assert(blockdev
->value
->has_node_name
);
785 if (device
&& strcmp(device
, blockdev
->value
->node_name
)) {
789 if (blockdev
!= blockdev_list
) {
790 monitor_printf(mon
, "\n");
793 print_block_info(mon
, NULL
, blockdev
->value
, verbose
);
795 qapi_free_BlockDeviceInfoList(blockdev_list
);
798 void hmp_info_blockstats(Monitor
*mon
, const QDict
*qdict
)
800 BlockStatsList
*stats_list
, *stats
;
802 stats_list
= qmp_query_blockstats(false, false, NULL
);
804 for (stats
= stats_list
; stats
; stats
= stats
->next
) {
805 if (!stats
->value
->has_device
) {
809 monitor_printf(mon
, "%s:", stats
->value
->device
);
810 monitor_printf(mon
, " rd_bytes=%" PRId64
812 " rd_operations=%" PRId64
813 " wr_operations=%" PRId64
814 " flush_operations=%" PRId64
815 " wr_total_time_ns=%" PRId64
816 " rd_total_time_ns=%" PRId64
817 " flush_total_time_ns=%" PRId64
818 " rd_merged=%" PRId64
819 " wr_merged=%" PRId64
820 " idle_time_ns=%" PRId64
822 stats
->value
->stats
->rd_bytes
,
823 stats
->value
->stats
->wr_bytes
,
824 stats
->value
->stats
->rd_operations
,
825 stats
->value
->stats
->wr_operations
,
826 stats
->value
->stats
->flush_operations
,
827 stats
->value
->stats
->wr_total_time_ns
,
828 stats
->value
->stats
->rd_total_time_ns
,
829 stats
->value
->stats
->flush_total_time_ns
,
830 stats
->value
->stats
->rd_merged
,
831 stats
->value
->stats
->wr_merged
,
832 stats
->value
->stats
->idle_time_ns
);
835 qapi_free_BlockStatsList(stats_list
);
838 void hmp_info_block_jobs(Monitor
*mon
, const QDict
*qdict
)
840 BlockJobInfoList
*list
;
842 list
= qmp_query_block_jobs(&error_abort
);
845 monitor_printf(mon
, "No active jobs\n");
850 if (strcmp(list
->value
->type
, "stream") == 0) {
851 monitor_printf(mon
, "Streaming device %s: Completed %" PRId64
852 " of %" PRId64
" bytes, speed limit %" PRId64
859 monitor_printf(mon
, "Type %s, device %s: Completed %" PRId64
860 " of %" PRId64
" bytes, speed limit %" PRId64
871 qapi_free_BlockJobInfoList(list
);
874 void hmp_info_snapshots(Monitor
*mon
, const QDict
*qdict
)
876 BlockDriverState
*bs
, *bs1
;
877 BdrvNextIterator it1
;
878 QEMUSnapshotInfo
*sn_tab
, *sn
;
879 bool no_snapshot
= true;
882 int *global_snapshots
;
883 AioContext
*aio_context
;
885 typedef struct SnapshotEntry
{
887 QTAILQ_ENTRY(SnapshotEntry
) next
;
890 typedef struct ImageEntry
{
891 const char *imagename
;
892 QTAILQ_ENTRY(ImageEntry
) next
;
893 QTAILQ_HEAD(, SnapshotEntry
) snapshots
;
896 QTAILQ_HEAD(, ImageEntry
) image_list
=
897 QTAILQ_HEAD_INITIALIZER(image_list
);
899 ImageEntry
*image_entry
, *next_ie
;
900 SnapshotEntry
*snapshot_entry
;
902 bs
= bdrv_all_find_vmstate_bs();
904 monitor_printf(mon
, "No available block device supports snapshots\n");
907 aio_context
= bdrv_get_aio_context(bs
);
909 aio_context_acquire(aio_context
);
910 nb_sns
= bdrv_snapshot_list(bs
, &sn_tab
);
911 aio_context_release(aio_context
);
914 monitor_printf(mon
, "bdrv_snapshot_list: error %d\n", nb_sns
);
918 for (bs1
= bdrv_first(&it1
); bs1
; bs1
= bdrv_next(&it1
)) {
922 AioContext
*ctx
= bdrv_get_aio_context(bs1
);
924 aio_context_acquire(ctx
);
925 if (bdrv_can_snapshot(bs1
)) {
927 bs1_nb_sns
= bdrv_snapshot_list(bs1
, &sn
);
928 if (bs1_nb_sns
> 0) {
930 ie
= g_new0(ImageEntry
, 1);
931 ie
->imagename
= bdrv_get_device_name(bs1
);
932 QTAILQ_INIT(&ie
->snapshots
);
933 QTAILQ_INSERT_TAIL(&image_list
, ie
, next
);
934 for (i
= 0; i
< bs1_nb_sns
; i
++) {
935 se
= g_new0(SnapshotEntry
, 1);
937 QTAILQ_INSERT_TAIL(&ie
->snapshots
, se
, next
);
942 aio_context_release(ctx
);
946 monitor_printf(mon
, "There is no snapshot available.\n");
950 global_snapshots
= g_new0(int, nb_sns
);
952 for (i
= 0; i
< nb_sns
; i
++) {
953 SnapshotEntry
*next_sn
;
954 if (bdrv_all_find_snapshot(sn_tab
[i
].name
, &bs1
) == 0) {
955 global_snapshots
[total
] = i
;
957 QTAILQ_FOREACH(image_entry
, &image_list
, next
) {
958 QTAILQ_FOREACH_SAFE(snapshot_entry
, &image_entry
->snapshots
,
960 if (!strcmp(sn_tab
[i
].name
, snapshot_entry
->sn
.name
)) {
961 QTAILQ_REMOVE(&image_entry
->snapshots
, snapshot_entry
,
963 g_free(snapshot_entry
);
969 monitor_printf(mon
, "List of snapshots present on all disks:\n");
972 bdrv_snapshot_dump(NULL
);
973 monitor_printf(mon
, "\n");
974 for (i
= 0; i
< total
; i
++) {
975 sn
= &sn_tab
[global_snapshots
[i
]];
977 * The ID is not guaranteed to be the same on all images, so
980 pstrcpy(sn
->id_str
, sizeof(sn
->id_str
), "--");
981 bdrv_snapshot_dump(sn
);
982 monitor_printf(mon
, "\n");
985 monitor_printf(mon
, "None\n");
988 QTAILQ_FOREACH(image_entry
, &image_list
, next
) {
989 if (QTAILQ_EMPTY(&image_entry
->snapshots
)) {
993 "\nList of partial (non-loadable) snapshots on '%s':\n",
994 image_entry
->imagename
);
995 bdrv_snapshot_dump(NULL
);
996 monitor_printf(mon
, "\n");
997 QTAILQ_FOREACH(snapshot_entry
, &image_entry
->snapshots
, next
) {
998 bdrv_snapshot_dump(&snapshot_entry
->sn
);
999 monitor_printf(mon
, "\n");
1003 QTAILQ_FOREACH_SAFE(image_entry
, &image_list
, next
, next_ie
) {
1004 SnapshotEntry
*next_sn
;
1005 QTAILQ_FOREACH_SAFE(snapshot_entry
, &image_entry
->snapshots
, next
,
1007 g_free(snapshot_entry
);
1009 g_free(image_entry
);
1012 g_free(global_snapshots
);