block: make bdrv_delete() static
[qemu.git] / hmp.c
blob2bd31d1c6902bf9e8f4016674265590a40e30f64
1 /*
2 * Human Monitor Interface
4 * Copyright IBM, Corp. 2011
6 * Authors:
7 * Anthony Liguori <aliguori@us.ibm.com>
9 * This work is licensed under the terms of the GNU GPL, version 2. See
10 * the COPYING file in the top-level directory.
12 * Contributions after 2012-01-13 are licensed under the terms of the
13 * GNU GPL, version 2 or (at your option) any later version.
16 #include "hmp.h"
17 #include "net/net.h"
18 #include "sysemu/char.h"
19 #include "qemu/option.h"
20 #include "qemu/timer.h"
21 #include "qmp-commands.h"
22 #include "qemu/sockets.h"
23 #include "monitor/monitor.h"
24 #include "ui/console.h"
25 #include "block/qapi.h"
26 #include "qemu-io.h"
28 static void hmp_handle_error(Monitor *mon, Error **errp)
30 if (error_is_set(errp)) {
31 monitor_printf(mon, "%s\n", error_get_pretty(*errp));
32 error_free(*errp);
36 void hmp_info_name(Monitor *mon, const QDict *qdict)
38 NameInfo *info;
40 info = qmp_query_name(NULL);
41 if (info->has_name) {
42 monitor_printf(mon, "%s\n", info->name);
44 qapi_free_NameInfo(info);
47 void hmp_info_version(Monitor *mon, const QDict *qdict)
49 VersionInfo *info;
51 info = qmp_query_version(NULL);
53 monitor_printf(mon, "%" PRId64 ".%" PRId64 ".%" PRId64 "%s\n",
54 info->qemu.major, info->qemu.minor, info->qemu.micro,
55 info->package);
57 qapi_free_VersionInfo(info);
60 void hmp_info_kvm(Monitor *mon, const QDict *qdict)
62 KvmInfo *info;
64 info = qmp_query_kvm(NULL);
65 monitor_printf(mon, "kvm support: ");
66 if (info->present) {
67 monitor_printf(mon, "%s\n", info->enabled ? "enabled" : "disabled");
68 } else {
69 monitor_printf(mon, "not compiled\n");
72 qapi_free_KvmInfo(info);
75 void hmp_info_status(Monitor *mon, const QDict *qdict)
77 StatusInfo *info;
79 info = qmp_query_status(NULL);
81 monitor_printf(mon, "VM status: %s%s",
82 info->running ? "running" : "paused",
83 info->singlestep ? " (single step mode)" : "");
85 if (!info->running && info->status != RUN_STATE_PAUSED) {
86 monitor_printf(mon, " (%s)", RunState_lookup[info->status]);
89 monitor_printf(mon, "\n");
91 qapi_free_StatusInfo(info);
94 void hmp_info_uuid(Monitor *mon, const QDict *qdict)
96 UuidInfo *info;
98 info = qmp_query_uuid(NULL);
99 monitor_printf(mon, "%s\n", info->UUID);
100 qapi_free_UuidInfo(info);
103 void hmp_info_chardev(Monitor *mon, const QDict *qdict)
105 ChardevInfoList *char_info, *info;
107 char_info = qmp_query_chardev(NULL);
108 for (info = char_info; info; info = info->next) {
109 monitor_printf(mon, "%s: filename=%s\n", info->value->label,
110 info->value->filename);
113 qapi_free_ChardevInfoList(char_info);
116 void hmp_info_mice(Monitor *mon, const QDict *qdict)
118 MouseInfoList *mice_list, *mouse;
120 mice_list = qmp_query_mice(NULL);
121 if (!mice_list) {
122 monitor_printf(mon, "No mouse devices connected\n");
123 return;
126 for (mouse = mice_list; mouse; mouse = mouse->next) {
127 monitor_printf(mon, "%c Mouse #%" PRId64 ": %s%s\n",
128 mouse->value->current ? '*' : ' ',
129 mouse->value->index, mouse->value->name,
130 mouse->value->absolute ? " (absolute)" : "");
133 qapi_free_MouseInfoList(mice_list);
136 void hmp_info_migrate(Monitor *mon, const QDict *qdict)
138 MigrationInfo *info;
139 MigrationCapabilityStatusList *caps, *cap;
141 info = qmp_query_migrate(NULL);
142 caps = qmp_query_migrate_capabilities(NULL);
144 /* do not display parameters during setup */
145 if (info->has_status && caps) {
146 monitor_printf(mon, "capabilities: ");
147 for (cap = caps; cap; cap = cap->next) {
148 monitor_printf(mon, "%s: %s ",
149 MigrationCapability_lookup[cap->value->capability],
150 cap->value->state ? "on" : "off");
152 monitor_printf(mon, "\n");
155 if (info->has_status) {
156 monitor_printf(mon, "Migration status: %s\n", info->status);
157 monitor_printf(mon, "total time: %" PRIu64 " milliseconds\n",
158 info->total_time);
159 if (info->has_expected_downtime) {
160 monitor_printf(mon, "expected downtime: %" PRIu64 " milliseconds\n",
161 info->expected_downtime);
163 if (info->has_downtime) {
164 monitor_printf(mon, "downtime: %" PRIu64 " milliseconds\n",
165 info->downtime);
167 if (info->has_setup_time) {
168 monitor_printf(mon, "setup: %" PRIu64 " milliseconds\n",
169 info->setup_time);
173 if (info->has_ram) {
174 monitor_printf(mon, "transferred ram: %" PRIu64 " kbytes\n",
175 info->ram->transferred >> 10);
176 monitor_printf(mon, "throughput: %0.2f mbps\n",
177 info->ram->mbps);
178 monitor_printf(mon, "remaining ram: %" PRIu64 " kbytes\n",
179 info->ram->remaining >> 10);
180 monitor_printf(mon, "total ram: %" PRIu64 " kbytes\n",
181 info->ram->total >> 10);
182 monitor_printf(mon, "duplicate: %" PRIu64 " pages\n",
183 info->ram->duplicate);
184 monitor_printf(mon, "skipped: %" PRIu64 " pages\n",
185 info->ram->skipped);
186 monitor_printf(mon, "normal: %" PRIu64 " pages\n",
187 info->ram->normal);
188 monitor_printf(mon, "normal bytes: %" PRIu64 " kbytes\n",
189 info->ram->normal_bytes >> 10);
190 if (info->ram->dirty_pages_rate) {
191 monitor_printf(mon, "dirty pages rate: %" PRIu64 " pages\n",
192 info->ram->dirty_pages_rate);
196 if (info->has_disk) {
197 monitor_printf(mon, "transferred disk: %" PRIu64 " kbytes\n",
198 info->disk->transferred >> 10);
199 monitor_printf(mon, "remaining disk: %" PRIu64 " kbytes\n",
200 info->disk->remaining >> 10);
201 monitor_printf(mon, "total disk: %" PRIu64 " kbytes\n",
202 info->disk->total >> 10);
205 if (info->has_xbzrle_cache) {
206 monitor_printf(mon, "cache size: %" PRIu64 " bytes\n",
207 info->xbzrle_cache->cache_size);
208 monitor_printf(mon, "xbzrle transferred: %" PRIu64 " kbytes\n",
209 info->xbzrle_cache->bytes >> 10);
210 monitor_printf(mon, "xbzrle pages: %" PRIu64 " pages\n",
211 info->xbzrle_cache->pages);
212 monitor_printf(mon, "xbzrle cache miss: %" PRIu64 "\n",
213 info->xbzrle_cache->cache_miss);
214 monitor_printf(mon, "xbzrle overflow : %" PRIu64 "\n",
215 info->xbzrle_cache->overflow);
218 qapi_free_MigrationInfo(info);
219 qapi_free_MigrationCapabilityStatusList(caps);
222 void hmp_info_migrate_capabilities(Monitor *mon, const QDict *qdict)
224 MigrationCapabilityStatusList *caps, *cap;
226 caps = qmp_query_migrate_capabilities(NULL);
228 if (caps) {
229 monitor_printf(mon, "capabilities: ");
230 for (cap = caps; cap; cap = cap->next) {
231 monitor_printf(mon, "%s: %s ",
232 MigrationCapability_lookup[cap->value->capability],
233 cap->value->state ? "on" : "off");
235 monitor_printf(mon, "\n");
238 qapi_free_MigrationCapabilityStatusList(caps);
241 void hmp_info_migrate_cache_size(Monitor *mon, const QDict *qdict)
243 monitor_printf(mon, "xbzrel cache size: %" PRId64 " kbytes\n",
244 qmp_query_migrate_cache_size(NULL) >> 10);
247 void hmp_info_cpus(Monitor *mon, const QDict *qdict)
249 CpuInfoList *cpu_list, *cpu;
251 cpu_list = qmp_query_cpus(NULL);
253 for (cpu = cpu_list; cpu; cpu = cpu->next) {
254 int active = ' ';
256 if (cpu->value->CPU == monitor_get_cpu_index()) {
257 active = '*';
260 monitor_printf(mon, "%c CPU #%" PRId64 ":", active, cpu->value->CPU);
262 if (cpu->value->has_pc) {
263 monitor_printf(mon, " pc=0x%016" PRIx64, cpu->value->pc);
265 if (cpu->value->has_nip) {
266 monitor_printf(mon, " nip=0x%016" PRIx64, cpu->value->nip);
268 if (cpu->value->has_npc) {
269 monitor_printf(mon, " npc=0x%016" PRIx64, cpu->value->npc);
271 if (cpu->value->has_PC) {
272 monitor_printf(mon, " PC=0x%016" PRIx64, cpu->value->PC);
275 if (cpu->value->halted) {
276 monitor_printf(mon, " (halted)");
279 monitor_printf(mon, " thread_id=%" PRId64 "\n", cpu->value->thread_id);
282 qapi_free_CpuInfoList(cpu_list);
285 void hmp_info_block(Monitor *mon, const QDict *qdict)
287 BlockInfoList *block_list, *info;
288 ImageInfo *image_info;
289 const char *device = qdict_get_try_str(qdict, "device");
290 bool verbose = qdict_get_try_bool(qdict, "verbose", 0);
292 block_list = qmp_query_block(NULL);
294 for (info = block_list; info; info = info->next) {
295 if (device && strcmp(device, info->value->device)) {
296 continue;
299 if (info != block_list) {
300 monitor_printf(mon, "\n");
303 monitor_printf(mon, "%s", info->value->device);
304 if (info->value->has_inserted) {
305 monitor_printf(mon, ": %s (%s%s%s)\n",
306 info->value->inserted->file,
307 info->value->inserted->drv,
308 info->value->inserted->ro ? ", read-only" : "",
309 info->value->inserted->encrypted ? ", encrypted" : "");
310 } else {
311 monitor_printf(mon, ": [not inserted]\n");
314 if (info->value->has_io_status && info->value->io_status != BLOCK_DEVICE_IO_STATUS_OK) {
315 monitor_printf(mon, " I/O status: %s\n",
316 BlockDeviceIoStatus_lookup[info->value->io_status]);
319 if (info->value->removable) {
320 monitor_printf(mon, " Removable device: %slocked, tray %s\n",
321 info->value->locked ? "" : "not ",
322 info->value->tray_open ? "open" : "closed");
326 if (!info->value->has_inserted) {
327 continue;
330 if (info->value->inserted->has_backing_file) {
331 monitor_printf(mon,
332 " Backing file: %s "
333 "(chain depth: %" PRId64 ")\n",
334 info->value->inserted->backing_file,
335 info->value->inserted->backing_file_depth);
338 if (info->value->inserted->bps
339 || info->value->inserted->bps_rd
340 || info->value->inserted->bps_wr
341 || info->value->inserted->iops
342 || info->value->inserted->iops_rd
343 || info->value->inserted->iops_wr)
345 monitor_printf(mon, " I/O throttling: bps=%" PRId64
346 " bps_rd=%" PRId64 " bps_wr=%" PRId64
347 " bps_max=%" PRId64
348 " bps_rd_max=%" PRId64
349 " bps_wr_max=%" PRId64
350 " iops=%" PRId64 " iops_rd=%" PRId64
351 " iops_wr=%" PRId64
352 " iops_max=%" PRId64
353 " iops_rd_max=%" PRId64
354 " iops_wr_max=%" PRId64
355 " iops_size=%" PRId64 "\n",
356 info->value->inserted->bps,
357 info->value->inserted->bps_rd,
358 info->value->inserted->bps_wr,
359 info->value->inserted->bps_max,
360 info->value->inserted->bps_rd_max,
361 info->value->inserted->bps_wr_max,
362 info->value->inserted->iops,
363 info->value->inserted->iops_rd,
364 info->value->inserted->iops_wr,
365 info->value->inserted->iops_max,
366 info->value->inserted->iops_rd_max,
367 info->value->inserted->iops_wr_max,
368 info->value->inserted->iops_size);
369 } else {
370 monitor_printf(mon, " [not inserted]");
373 if (verbose) {
374 monitor_printf(mon, "\nImages:\n");
375 image_info = info->value->inserted->image;
376 while (1) {
377 bdrv_image_info_dump((fprintf_function)monitor_printf,
378 mon, image_info);
379 if (image_info->has_backing_image) {
380 image_info = image_info->backing_image;
381 } else {
382 break;
388 qapi_free_BlockInfoList(block_list);
391 void hmp_info_blockstats(Monitor *mon, const QDict *qdict)
393 BlockStatsList *stats_list, *stats;
395 stats_list = qmp_query_blockstats(NULL);
397 for (stats = stats_list; stats; stats = stats->next) {
398 if (!stats->value->has_device) {
399 continue;
402 monitor_printf(mon, "%s:", stats->value->device);
403 monitor_printf(mon, " rd_bytes=%" PRId64
404 " wr_bytes=%" PRId64
405 " rd_operations=%" PRId64
406 " wr_operations=%" PRId64
407 " flush_operations=%" PRId64
408 " wr_total_time_ns=%" PRId64
409 " rd_total_time_ns=%" PRId64
410 " flush_total_time_ns=%" PRId64
411 "\n",
412 stats->value->stats->rd_bytes,
413 stats->value->stats->wr_bytes,
414 stats->value->stats->rd_operations,
415 stats->value->stats->wr_operations,
416 stats->value->stats->flush_operations,
417 stats->value->stats->wr_total_time_ns,
418 stats->value->stats->rd_total_time_ns,
419 stats->value->stats->flush_total_time_ns);
422 qapi_free_BlockStatsList(stats_list);
425 void hmp_info_vnc(Monitor *mon, const QDict *qdict)
427 VncInfo *info;
428 Error *err = NULL;
429 VncClientInfoList *client;
431 info = qmp_query_vnc(&err);
432 if (err) {
433 monitor_printf(mon, "%s\n", error_get_pretty(err));
434 error_free(err);
435 return;
438 if (!info->enabled) {
439 monitor_printf(mon, "Server: disabled\n");
440 goto out;
443 monitor_printf(mon, "Server:\n");
444 if (info->has_host && info->has_service) {
445 monitor_printf(mon, " address: %s:%s\n", info->host, info->service);
447 if (info->has_auth) {
448 monitor_printf(mon, " auth: %s\n", info->auth);
451 if (!info->has_clients || info->clients == NULL) {
452 monitor_printf(mon, "Client: none\n");
453 } else {
454 for (client = info->clients; client; client = client->next) {
455 monitor_printf(mon, "Client:\n");
456 monitor_printf(mon, " address: %s:%s\n",
457 client->value->host, client->value->service);
458 monitor_printf(mon, " x509_dname: %s\n",
459 client->value->x509_dname ?
460 client->value->x509_dname : "none");
461 monitor_printf(mon, " username: %s\n",
462 client->value->has_sasl_username ?
463 client->value->sasl_username : "none");
467 out:
468 qapi_free_VncInfo(info);
471 void hmp_info_spice(Monitor *mon, const QDict *qdict)
473 SpiceChannelList *chan;
474 SpiceInfo *info;
476 info = qmp_query_spice(NULL);
478 if (!info->enabled) {
479 monitor_printf(mon, "Server: disabled\n");
480 goto out;
483 monitor_printf(mon, "Server:\n");
484 if (info->has_port) {
485 monitor_printf(mon, " address: %s:%" PRId64 "\n",
486 info->host, info->port);
488 if (info->has_tls_port) {
489 monitor_printf(mon, " address: %s:%" PRId64 " [tls]\n",
490 info->host, info->tls_port);
492 monitor_printf(mon, " migrated: %s\n",
493 info->migrated ? "true" : "false");
494 monitor_printf(mon, " auth: %s\n", info->auth);
495 monitor_printf(mon, " compiled: %s\n", info->compiled_version);
496 monitor_printf(mon, " mouse-mode: %s\n",
497 SpiceQueryMouseMode_lookup[info->mouse_mode]);
499 if (!info->has_channels || info->channels == NULL) {
500 monitor_printf(mon, "Channels: none\n");
501 } else {
502 for (chan = info->channels; chan; chan = chan->next) {
503 monitor_printf(mon, "Channel:\n");
504 monitor_printf(mon, " address: %s:%s%s\n",
505 chan->value->host, chan->value->port,
506 chan->value->tls ? " [tls]" : "");
507 monitor_printf(mon, " session: %" PRId64 "\n",
508 chan->value->connection_id);
509 monitor_printf(mon, " channel: %" PRId64 ":%" PRId64 "\n",
510 chan->value->channel_type, chan->value->channel_id);
514 out:
515 qapi_free_SpiceInfo(info);
518 void hmp_info_balloon(Monitor *mon, const QDict *qdict)
520 BalloonInfo *info;
521 Error *err = NULL;
523 info = qmp_query_balloon(&err);
524 if (err) {
525 monitor_printf(mon, "%s\n", error_get_pretty(err));
526 error_free(err);
527 return;
530 monitor_printf(mon, "balloon: actual=%" PRId64 "\n", info->actual >> 20);
532 qapi_free_BalloonInfo(info);
535 static void hmp_info_pci_device(Monitor *mon, const PciDeviceInfo *dev)
537 PciMemoryRegionList *region;
539 monitor_printf(mon, " Bus %2" PRId64 ", ", dev->bus);
540 monitor_printf(mon, "device %3" PRId64 ", function %" PRId64 ":\n",
541 dev->slot, dev->function);
542 monitor_printf(mon, " ");
544 if (dev->class_info.has_desc) {
545 monitor_printf(mon, "%s", dev->class_info.desc);
546 } else {
547 monitor_printf(mon, "Class %04" PRId64, dev->class_info.class);
550 monitor_printf(mon, ": PCI device %04" PRIx64 ":%04" PRIx64 "\n",
551 dev->id.vendor, dev->id.device);
553 if (dev->has_irq) {
554 monitor_printf(mon, " IRQ %" PRId64 ".\n", dev->irq);
557 if (dev->has_pci_bridge) {
558 monitor_printf(mon, " BUS %" PRId64 ".\n",
559 dev->pci_bridge->bus.number);
560 monitor_printf(mon, " secondary bus %" PRId64 ".\n",
561 dev->pci_bridge->bus.secondary);
562 monitor_printf(mon, " subordinate bus %" PRId64 ".\n",
563 dev->pci_bridge->bus.subordinate);
565 monitor_printf(mon, " IO range [0x%04"PRIx64", 0x%04"PRIx64"]\n",
566 dev->pci_bridge->bus.io_range->base,
567 dev->pci_bridge->bus.io_range->limit);
569 monitor_printf(mon,
570 " memory range [0x%08"PRIx64", 0x%08"PRIx64"]\n",
571 dev->pci_bridge->bus.memory_range->base,
572 dev->pci_bridge->bus.memory_range->limit);
574 monitor_printf(mon, " prefetchable memory range "
575 "[0x%08"PRIx64", 0x%08"PRIx64"]\n",
576 dev->pci_bridge->bus.prefetchable_range->base,
577 dev->pci_bridge->bus.prefetchable_range->limit);
580 for (region = dev->regions; region; region = region->next) {
581 uint64_t addr, size;
583 addr = region->value->address;
584 size = region->value->size;
586 monitor_printf(mon, " BAR%" PRId64 ": ", region->value->bar);
588 if (!strcmp(region->value->type, "io")) {
589 monitor_printf(mon, "I/O at 0x%04" PRIx64
590 " [0x%04" PRIx64 "].\n",
591 addr, addr + size - 1);
592 } else {
593 monitor_printf(mon, "%d bit%s memory at 0x%08" PRIx64
594 " [0x%08" PRIx64 "].\n",
595 region->value->mem_type_64 ? 64 : 32,
596 region->value->prefetch ? " prefetchable" : "",
597 addr, addr + size - 1);
601 monitor_printf(mon, " id \"%s\"\n", dev->qdev_id);
603 if (dev->has_pci_bridge) {
604 if (dev->pci_bridge->has_devices) {
605 PciDeviceInfoList *cdev;
606 for (cdev = dev->pci_bridge->devices; cdev; cdev = cdev->next) {
607 hmp_info_pci_device(mon, cdev->value);
613 void hmp_info_pci(Monitor *mon, const QDict *qdict)
615 PciInfoList *info_list, *info;
616 Error *err = NULL;
618 info_list = qmp_query_pci(&err);
619 if (err) {
620 monitor_printf(mon, "PCI devices not supported\n");
621 error_free(err);
622 return;
625 for (info = info_list; info; info = info->next) {
626 PciDeviceInfoList *dev;
628 for (dev = info->value->devices; dev; dev = dev->next) {
629 hmp_info_pci_device(mon, dev->value);
633 qapi_free_PciInfoList(info_list);
636 void hmp_info_block_jobs(Monitor *mon, const QDict *qdict)
638 BlockJobInfoList *list;
639 Error *err = NULL;
641 list = qmp_query_block_jobs(&err);
642 assert(!err);
644 if (!list) {
645 monitor_printf(mon, "No active jobs\n");
646 return;
649 while (list) {
650 if (strcmp(list->value->type, "stream") == 0) {
651 monitor_printf(mon, "Streaming device %s: Completed %" PRId64
652 " of %" PRId64 " bytes, speed limit %" PRId64
653 " bytes/s\n",
654 list->value->device,
655 list->value->offset,
656 list->value->len,
657 list->value->speed);
658 } else {
659 monitor_printf(mon, "Type %s, device %s: Completed %" PRId64
660 " of %" PRId64 " bytes, speed limit %" PRId64
661 " bytes/s\n",
662 list->value->type,
663 list->value->device,
664 list->value->offset,
665 list->value->len,
666 list->value->speed);
668 list = list->next;
672 void hmp_info_tpm(Monitor *mon, const QDict *qdict)
674 TPMInfoList *info_list, *info;
675 Error *err = NULL;
676 unsigned int c = 0;
677 TPMPassthroughOptions *tpo;
679 info_list = qmp_query_tpm(&err);
680 if (err) {
681 monitor_printf(mon, "TPM device not supported\n");
682 error_free(err);
683 return;
686 if (info_list) {
687 monitor_printf(mon, "TPM device:\n");
690 for (info = info_list; info; info = info->next) {
691 TPMInfo *ti = info->value;
692 monitor_printf(mon, " tpm%d: model=%s\n",
693 c, TpmModel_lookup[ti->model]);
695 monitor_printf(mon, " \\ %s: type=%s",
696 ti->id, TpmTypeOptionsKind_lookup[ti->options->kind]);
698 switch (ti->options->kind) {
699 case TPM_TYPE_OPTIONS_KIND_PASSTHROUGH:
700 tpo = ti->options->passthrough;
701 monitor_printf(mon, "%s%s%s%s",
702 tpo->has_path ? ",path=" : "",
703 tpo->has_path ? tpo->path : "",
704 tpo->has_cancel_path ? ",cancel-path=" : "",
705 tpo->has_cancel_path ? tpo->cancel_path : "");
706 break;
707 case TPM_TYPE_OPTIONS_KIND_MAX:
708 break;
710 monitor_printf(mon, "\n");
711 c++;
713 qapi_free_TPMInfoList(info_list);
716 void hmp_quit(Monitor *mon, const QDict *qdict)
718 monitor_suspend(mon);
719 qmp_quit(NULL);
722 void hmp_stop(Monitor *mon, const QDict *qdict)
724 qmp_stop(NULL);
727 void hmp_system_reset(Monitor *mon, const QDict *qdict)
729 qmp_system_reset(NULL);
732 void hmp_system_powerdown(Monitor *mon, const QDict *qdict)
734 qmp_system_powerdown(NULL);
737 void hmp_cpu(Monitor *mon, const QDict *qdict)
739 int64_t cpu_index;
741 /* XXX: drop the monitor_set_cpu() usage when all HMP commands that
742 use it are converted to the QAPI */
743 cpu_index = qdict_get_int(qdict, "index");
744 if (monitor_set_cpu(cpu_index) < 0) {
745 monitor_printf(mon, "invalid CPU index\n");
749 void hmp_memsave(Monitor *mon, const QDict *qdict)
751 uint32_t size = qdict_get_int(qdict, "size");
752 const char *filename = qdict_get_str(qdict, "filename");
753 uint64_t addr = qdict_get_int(qdict, "val");
754 Error *errp = NULL;
756 qmp_memsave(addr, size, filename, true, monitor_get_cpu_index(), &errp);
757 hmp_handle_error(mon, &errp);
760 void hmp_pmemsave(Monitor *mon, const QDict *qdict)
762 uint32_t size = qdict_get_int(qdict, "size");
763 const char *filename = qdict_get_str(qdict, "filename");
764 uint64_t addr = qdict_get_int(qdict, "val");
765 Error *errp = NULL;
767 qmp_pmemsave(addr, size, filename, &errp);
768 hmp_handle_error(mon, &errp);
771 void hmp_ringbuf_write(Monitor *mon, const QDict *qdict)
773 const char *chardev = qdict_get_str(qdict, "device");
774 const char *data = qdict_get_str(qdict, "data");
775 Error *errp = NULL;
777 qmp_ringbuf_write(chardev, data, false, 0, &errp);
779 hmp_handle_error(mon, &errp);
782 void hmp_ringbuf_read(Monitor *mon, const QDict *qdict)
784 uint32_t size = qdict_get_int(qdict, "size");
785 const char *chardev = qdict_get_str(qdict, "device");
786 char *data;
787 Error *errp = NULL;
788 int i;
790 data = qmp_ringbuf_read(chardev, size, false, 0, &errp);
791 if (errp) {
792 monitor_printf(mon, "%s\n", error_get_pretty(errp));
793 error_free(errp);
794 return;
797 for (i = 0; data[i]; i++) {
798 unsigned char ch = data[i];
800 if (ch == '\\') {
801 monitor_printf(mon, "\\\\");
802 } else if ((ch < 0x20 && ch != '\n' && ch != '\t') || ch == 0x7F) {
803 monitor_printf(mon, "\\u%04X", ch);
804 } else {
805 monitor_printf(mon, "%c", ch);
809 monitor_printf(mon, "\n");
810 g_free(data);
813 static void hmp_cont_cb(void *opaque, int err)
815 if (!err) {
816 qmp_cont(NULL);
820 static bool key_is_missing(const BlockInfo *bdev)
822 return (bdev->inserted && bdev->inserted->encryption_key_missing);
825 void hmp_cont(Monitor *mon, const QDict *qdict)
827 BlockInfoList *bdev_list, *bdev;
828 Error *errp = NULL;
830 bdev_list = qmp_query_block(NULL);
831 for (bdev = bdev_list; bdev; bdev = bdev->next) {
832 if (key_is_missing(bdev->value)) {
833 monitor_read_block_device_key(mon, bdev->value->device,
834 hmp_cont_cb, NULL);
835 goto out;
839 qmp_cont(&errp);
840 hmp_handle_error(mon, &errp);
842 out:
843 qapi_free_BlockInfoList(bdev_list);
846 void hmp_system_wakeup(Monitor *mon, const QDict *qdict)
848 qmp_system_wakeup(NULL);
851 void hmp_inject_nmi(Monitor *mon, const QDict *qdict)
853 Error *errp = NULL;
855 qmp_inject_nmi(&errp);
856 hmp_handle_error(mon, &errp);
859 void hmp_set_link(Monitor *mon, const QDict *qdict)
861 const char *name = qdict_get_str(qdict, "name");
862 int up = qdict_get_bool(qdict, "up");
863 Error *errp = NULL;
865 qmp_set_link(name, up, &errp);
866 hmp_handle_error(mon, &errp);
869 void hmp_block_passwd(Monitor *mon, const QDict *qdict)
871 const char *device = qdict_get_str(qdict, "device");
872 const char *password = qdict_get_str(qdict, "password");
873 Error *errp = NULL;
875 qmp_block_passwd(device, password, &errp);
876 hmp_handle_error(mon, &errp);
879 void hmp_balloon(Monitor *mon, const QDict *qdict)
881 int64_t value = qdict_get_int(qdict, "value");
882 Error *errp = NULL;
884 qmp_balloon(value, &errp);
885 if (error_is_set(&errp)) {
886 monitor_printf(mon, "balloon: %s\n", error_get_pretty(errp));
887 error_free(errp);
891 void hmp_block_resize(Monitor *mon, const QDict *qdict)
893 const char *device = qdict_get_str(qdict, "device");
894 int64_t size = qdict_get_int(qdict, "size");
895 Error *errp = NULL;
897 qmp_block_resize(device, size, &errp);
898 hmp_handle_error(mon, &errp);
901 void hmp_drive_mirror(Monitor *mon, const QDict *qdict)
903 const char *device = qdict_get_str(qdict, "device");
904 const char *filename = qdict_get_str(qdict, "target");
905 const char *format = qdict_get_try_str(qdict, "format");
906 int reuse = qdict_get_try_bool(qdict, "reuse", 0);
907 int full = qdict_get_try_bool(qdict, "full", 0);
908 enum NewImageMode mode;
909 Error *errp = NULL;
911 if (!filename) {
912 error_set(&errp, QERR_MISSING_PARAMETER, "target");
913 hmp_handle_error(mon, &errp);
914 return;
917 if (reuse) {
918 mode = NEW_IMAGE_MODE_EXISTING;
919 } else {
920 mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS;
923 qmp_drive_mirror(device, filename, !!format, format,
924 full ? MIRROR_SYNC_MODE_FULL : MIRROR_SYNC_MODE_TOP,
925 true, mode, false, 0, false, 0, false, 0,
926 false, 0, false, 0, &errp);
927 hmp_handle_error(mon, &errp);
930 void hmp_drive_backup(Monitor *mon, const QDict *qdict)
932 const char *device = qdict_get_str(qdict, "device");
933 const char *filename = qdict_get_str(qdict, "target");
934 const char *format = qdict_get_try_str(qdict, "format");
935 int reuse = qdict_get_try_bool(qdict, "reuse", 0);
936 int full = qdict_get_try_bool(qdict, "full", 0);
937 enum NewImageMode mode;
938 Error *errp = NULL;
940 if (!filename) {
941 error_set(&errp, QERR_MISSING_PARAMETER, "target");
942 hmp_handle_error(mon, &errp);
943 return;
946 if (reuse) {
947 mode = NEW_IMAGE_MODE_EXISTING;
948 } else {
949 mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS;
952 qmp_drive_backup(device, filename, !!format, format,
953 full ? MIRROR_SYNC_MODE_FULL : MIRROR_SYNC_MODE_TOP,
954 true, mode, false, 0, false, 0, false, 0, &errp);
955 hmp_handle_error(mon, &errp);
958 void hmp_snapshot_blkdev(Monitor *mon, const QDict *qdict)
960 const char *device = qdict_get_str(qdict, "device");
961 const char *filename = qdict_get_try_str(qdict, "snapshot-file");
962 const char *format = qdict_get_try_str(qdict, "format");
963 int reuse = qdict_get_try_bool(qdict, "reuse", 0);
964 enum NewImageMode mode;
965 Error *errp = NULL;
967 if (!filename) {
968 /* In the future, if 'snapshot-file' is not specified, the snapshot
969 will be taken internally. Today it's actually required. */
970 error_set(&errp, QERR_MISSING_PARAMETER, "snapshot-file");
971 hmp_handle_error(mon, &errp);
972 return;
975 mode = reuse ? NEW_IMAGE_MODE_EXISTING : NEW_IMAGE_MODE_ABSOLUTE_PATHS;
976 qmp_blockdev_snapshot_sync(device, filename, !!format, format,
977 true, mode, &errp);
978 hmp_handle_error(mon, &errp);
981 void hmp_migrate_cancel(Monitor *mon, const QDict *qdict)
983 qmp_migrate_cancel(NULL);
986 void hmp_migrate_set_downtime(Monitor *mon, const QDict *qdict)
988 double value = qdict_get_double(qdict, "value");
989 qmp_migrate_set_downtime(value, NULL);
992 void hmp_migrate_set_cache_size(Monitor *mon, const QDict *qdict)
994 int64_t value = qdict_get_int(qdict, "value");
995 Error *err = NULL;
997 qmp_migrate_set_cache_size(value, &err);
998 if (err) {
999 monitor_printf(mon, "%s\n", error_get_pretty(err));
1000 error_free(err);
1001 return;
1005 void hmp_migrate_set_speed(Monitor *mon, const QDict *qdict)
1007 int64_t value = qdict_get_int(qdict, "value");
1008 qmp_migrate_set_speed(value, NULL);
1011 void hmp_migrate_set_capability(Monitor *mon, const QDict *qdict)
1013 const char *cap = qdict_get_str(qdict, "capability");
1014 bool state = qdict_get_bool(qdict, "state");
1015 Error *err = NULL;
1016 MigrationCapabilityStatusList *caps = g_malloc0(sizeof(*caps));
1017 int i;
1019 for (i = 0; i < MIGRATION_CAPABILITY_MAX; i++) {
1020 if (strcmp(cap, MigrationCapability_lookup[i]) == 0) {
1021 caps->value = g_malloc0(sizeof(*caps->value));
1022 caps->value->capability = i;
1023 caps->value->state = state;
1024 caps->next = NULL;
1025 qmp_migrate_set_capabilities(caps, &err);
1026 break;
1030 if (i == MIGRATION_CAPABILITY_MAX) {
1031 error_set(&err, QERR_INVALID_PARAMETER, cap);
1034 qapi_free_MigrationCapabilityStatusList(caps);
1036 if (err) {
1037 monitor_printf(mon, "migrate_set_capability: %s\n",
1038 error_get_pretty(err));
1039 error_free(err);
1043 void hmp_set_password(Monitor *mon, const QDict *qdict)
1045 const char *protocol = qdict_get_str(qdict, "protocol");
1046 const char *password = qdict_get_str(qdict, "password");
1047 const char *connected = qdict_get_try_str(qdict, "connected");
1048 Error *err = NULL;
1050 qmp_set_password(protocol, password, !!connected, connected, &err);
1051 hmp_handle_error(mon, &err);
1054 void hmp_expire_password(Monitor *mon, const QDict *qdict)
1056 const char *protocol = qdict_get_str(qdict, "protocol");
1057 const char *whenstr = qdict_get_str(qdict, "time");
1058 Error *err = NULL;
1060 qmp_expire_password(protocol, whenstr, &err);
1061 hmp_handle_error(mon, &err);
1064 void hmp_eject(Monitor *mon, const QDict *qdict)
1066 int force = qdict_get_try_bool(qdict, "force", 0);
1067 const char *device = qdict_get_str(qdict, "device");
1068 Error *err = NULL;
1070 qmp_eject(device, true, force, &err);
1071 hmp_handle_error(mon, &err);
1074 static void hmp_change_read_arg(Monitor *mon, const char *password,
1075 void *opaque)
1077 qmp_change_vnc_password(password, NULL);
1078 monitor_read_command(mon, 1);
1081 void hmp_change(Monitor *mon, const QDict *qdict)
1083 const char *device = qdict_get_str(qdict, "device");
1084 const char *target = qdict_get_str(qdict, "target");
1085 const char *arg = qdict_get_try_str(qdict, "arg");
1086 Error *err = NULL;
1088 if (strcmp(device, "vnc") == 0 &&
1089 (strcmp(target, "passwd") == 0 ||
1090 strcmp(target, "password") == 0)) {
1091 if (!arg) {
1092 monitor_read_password(mon, hmp_change_read_arg, NULL);
1093 return;
1097 qmp_change(device, target, !!arg, arg, &err);
1098 if (error_is_set(&err) &&
1099 error_get_class(err) == ERROR_CLASS_DEVICE_ENCRYPTED) {
1100 error_free(err);
1101 monitor_read_block_device_key(mon, device, NULL, NULL);
1102 return;
1104 hmp_handle_error(mon, &err);
1107 void hmp_block_set_io_throttle(Monitor *mon, const QDict *qdict)
1109 Error *err = NULL;
1111 qmp_block_set_io_throttle(qdict_get_str(qdict, "device"),
1112 qdict_get_int(qdict, "bps"),
1113 qdict_get_int(qdict, "bps_rd"),
1114 qdict_get_int(qdict, "bps_wr"),
1115 qdict_get_int(qdict, "iops"),
1116 qdict_get_int(qdict, "iops_rd"),
1117 qdict_get_int(qdict, "iops_wr"),
1118 false, /* no burst max via HMP */
1120 false,
1122 false,
1124 false,
1126 false,
1128 false,
1130 false, /* No default I/O size */
1131 0, &err);
1132 hmp_handle_error(mon, &err);
1135 void hmp_block_stream(Monitor *mon, const QDict *qdict)
1137 Error *error = NULL;
1138 const char *device = qdict_get_str(qdict, "device");
1139 const char *base = qdict_get_try_str(qdict, "base");
1140 int64_t speed = qdict_get_try_int(qdict, "speed", 0);
1142 qmp_block_stream(device, base != NULL, base,
1143 qdict_haskey(qdict, "speed"), speed,
1144 BLOCKDEV_ON_ERROR_REPORT, true, &error);
1146 hmp_handle_error(mon, &error);
1149 void hmp_block_job_set_speed(Monitor *mon, const QDict *qdict)
1151 Error *error = NULL;
1152 const char *device = qdict_get_str(qdict, "device");
1153 int64_t value = qdict_get_int(qdict, "speed");
1155 qmp_block_job_set_speed(device, value, &error);
1157 hmp_handle_error(mon, &error);
1160 void hmp_block_job_cancel(Monitor *mon, const QDict *qdict)
1162 Error *error = NULL;
1163 const char *device = qdict_get_str(qdict, "device");
1164 bool force = qdict_get_try_bool(qdict, "force", 0);
1166 qmp_block_job_cancel(device, true, force, &error);
1168 hmp_handle_error(mon, &error);
1171 void hmp_block_job_pause(Monitor *mon, const QDict *qdict)
1173 Error *error = NULL;
1174 const char *device = qdict_get_str(qdict, "device");
1176 qmp_block_job_pause(device, &error);
1178 hmp_handle_error(mon, &error);
1181 void hmp_block_job_resume(Monitor *mon, const QDict *qdict)
1183 Error *error = NULL;
1184 const char *device = qdict_get_str(qdict, "device");
1186 qmp_block_job_resume(device, &error);
1188 hmp_handle_error(mon, &error);
1191 void hmp_block_job_complete(Monitor *mon, const QDict *qdict)
1193 Error *error = NULL;
1194 const char *device = qdict_get_str(qdict, "device");
1196 qmp_block_job_complete(device, &error);
1198 hmp_handle_error(mon, &error);
1201 typedef struct MigrationStatus
1203 QEMUTimer *timer;
1204 Monitor *mon;
1205 bool is_block_migration;
1206 } MigrationStatus;
1208 static void hmp_migrate_status_cb(void *opaque)
1210 MigrationStatus *status = opaque;
1211 MigrationInfo *info;
1213 info = qmp_query_migrate(NULL);
1214 if (!info->has_status || strcmp(info->status, "active") == 0) {
1215 if (info->has_disk) {
1216 int progress;
1218 if (info->disk->remaining) {
1219 progress = info->disk->transferred * 100 / info->disk->total;
1220 } else {
1221 progress = 100;
1224 monitor_printf(status->mon, "Completed %d %%\r", progress);
1225 monitor_flush(status->mon);
1228 timer_mod(status->timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1000);
1229 } else {
1230 if (status->is_block_migration) {
1231 monitor_printf(status->mon, "\n");
1233 monitor_resume(status->mon);
1234 timer_del(status->timer);
1235 g_free(status);
1238 qapi_free_MigrationInfo(info);
1241 void hmp_migrate(Monitor *mon, const QDict *qdict)
1243 int detach = qdict_get_try_bool(qdict, "detach", 0);
1244 int blk = qdict_get_try_bool(qdict, "blk", 0);
1245 int inc = qdict_get_try_bool(qdict, "inc", 0);
1246 const char *uri = qdict_get_str(qdict, "uri");
1247 Error *err = NULL;
1249 qmp_migrate(uri, !!blk, blk, !!inc, inc, false, false, &err);
1250 if (err) {
1251 monitor_printf(mon, "migrate: %s\n", error_get_pretty(err));
1252 error_free(err);
1253 return;
1256 if (!detach) {
1257 MigrationStatus *status;
1259 if (monitor_suspend(mon) < 0) {
1260 monitor_printf(mon, "terminal does not allow synchronous "
1261 "migration, continuing detached\n");
1262 return;
1265 status = g_malloc0(sizeof(*status));
1266 status->mon = mon;
1267 status->is_block_migration = blk || inc;
1268 status->timer = timer_new_ms(QEMU_CLOCK_REALTIME, hmp_migrate_status_cb,
1269 status);
1270 timer_mod(status->timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME));
1274 void hmp_device_del(Monitor *mon, const QDict *qdict)
1276 const char *id = qdict_get_str(qdict, "id");
1277 Error *err = NULL;
1279 qmp_device_del(id, &err);
1280 hmp_handle_error(mon, &err);
1283 void hmp_dump_guest_memory(Monitor *mon, const QDict *qdict)
1285 Error *errp = NULL;
1286 int paging = qdict_get_try_bool(qdict, "paging", 0);
1287 const char *file = qdict_get_str(qdict, "filename");
1288 bool has_begin = qdict_haskey(qdict, "begin");
1289 bool has_length = qdict_haskey(qdict, "length");
1290 int64_t begin = 0;
1291 int64_t length = 0;
1292 char *prot;
1294 if (has_begin) {
1295 begin = qdict_get_int(qdict, "begin");
1297 if (has_length) {
1298 length = qdict_get_int(qdict, "length");
1301 prot = g_strconcat("file:", file, NULL);
1303 qmp_dump_guest_memory(paging, prot, has_begin, begin, has_length, length,
1304 &errp);
1305 hmp_handle_error(mon, &errp);
1306 g_free(prot);
1309 void hmp_netdev_add(Monitor *mon, const QDict *qdict)
1311 Error *err = NULL;
1312 QemuOpts *opts;
1314 opts = qemu_opts_from_qdict(qemu_find_opts("netdev"), qdict, &err);
1315 if (error_is_set(&err)) {
1316 goto out;
1319 netdev_add(opts, &err);
1320 if (error_is_set(&err)) {
1321 qemu_opts_del(opts);
1324 out:
1325 hmp_handle_error(mon, &err);
1328 void hmp_netdev_del(Monitor *mon, const QDict *qdict)
1330 const char *id = qdict_get_str(qdict, "id");
1331 Error *err = NULL;
1333 qmp_netdev_del(id, &err);
1334 hmp_handle_error(mon, &err);
1337 void hmp_getfd(Monitor *mon, const QDict *qdict)
1339 const char *fdname = qdict_get_str(qdict, "fdname");
1340 Error *errp = NULL;
1342 qmp_getfd(fdname, &errp);
1343 hmp_handle_error(mon, &errp);
1346 void hmp_closefd(Monitor *mon, const QDict *qdict)
1348 const char *fdname = qdict_get_str(qdict, "fdname");
1349 Error *errp = NULL;
1351 qmp_closefd(fdname, &errp);
1352 hmp_handle_error(mon, &errp);
1355 void hmp_send_key(Monitor *mon, const QDict *qdict)
1357 const char *keys = qdict_get_str(qdict, "keys");
1358 KeyValueList *keylist, *head = NULL, *tmp = NULL;
1359 int has_hold_time = qdict_haskey(qdict, "hold-time");
1360 int hold_time = qdict_get_try_int(qdict, "hold-time", -1);
1361 Error *err = NULL;
1362 char keyname_buf[16];
1363 char *separator;
1364 int keyname_len;
1366 while (1) {
1367 separator = strchr(keys, '-');
1368 keyname_len = separator ? separator - keys : strlen(keys);
1369 pstrcpy(keyname_buf, sizeof(keyname_buf), keys);
1371 /* Be compatible with old interface, convert user inputted "<" */
1372 if (!strncmp(keyname_buf, "<", 1) && keyname_len == 1) {
1373 pstrcpy(keyname_buf, sizeof(keyname_buf), "less");
1374 keyname_len = 4;
1376 keyname_buf[keyname_len] = 0;
1378 keylist = g_malloc0(sizeof(*keylist));
1379 keylist->value = g_malloc0(sizeof(*keylist->value));
1381 if (!head) {
1382 head = keylist;
1384 if (tmp) {
1385 tmp->next = keylist;
1387 tmp = keylist;
1389 if (strstart(keyname_buf, "0x", NULL)) {
1390 char *endp;
1391 int value = strtoul(keyname_buf, &endp, 0);
1392 if (*endp != '\0') {
1393 goto err_out;
1395 keylist->value->kind = KEY_VALUE_KIND_NUMBER;
1396 keylist->value->number = value;
1397 } else {
1398 int idx = index_from_key(keyname_buf);
1399 if (idx == Q_KEY_CODE_MAX) {
1400 goto err_out;
1402 keylist->value->kind = KEY_VALUE_KIND_QCODE;
1403 keylist->value->qcode = idx;
1406 if (!separator) {
1407 break;
1409 keys = separator + 1;
1412 qmp_send_key(head, has_hold_time, hold_time, &err);
1413 hmp_handle_error(mon, &err);
1415 out:
1416 qapi_free_KeyValueList(head);
1417 return;
1419 err_out:
1420 monitor_printf(mon, "invalid parameter: %s\n", keyname_buf);
1421 goto out;
1424 void hmp_screen_dump(Monitor *mon, const QDict *qdict)
1426 const char *filename = qdict_get_str(qdict, "filename");
1427 Error *err = NULL;
1429 qmp_screendump(filename, &err);
1430 hmp_handle_error(mon, &err);
1433 void hmp_nbd_server_start(Monitor *mon, const QDict *qdict)
1435 const char *uri = qdict_get_str(qdict, "uri");
1436 int writable = qdict_get_try_bool(qdict, "writable", 0);
1437 int all = qdict_get_try_bool(qdict, "all", 0);
1438 Error *local_err = NULL;
1439 BlockInfoList *block_list, *info;
1440 SocketAddress *addr;
1442 if (writable && !all) {
1443 error_setg(&local_err, "-w only valid together with -a");
1444 goto exit;
1447 /* First check if the address is valid and start the server. */
1448 addr = socket_parse(uri, &local_err);
1449 if (local_err != NULL) {
1450 goto exit;
1453 qmp_nbd_server_start(addr, &local_err);
1454 qapi_free_SocketAddress(addr);
1455 if (local_err != NULL) {
1456 goto exit;
1459 if (!all) {
1460 return;
1463 /* Then try adding all block devices. If one fails, close all and
1464 * exit.
1466 block_list = qmp_query_block(NULL);
1468 for (info = block_list; info; info = info->next) {
1469 if (!info->value->has_inserted) {
1470 continue;
1473 qmp_nbd_server_add(info->value->device, true, writable, &local_err);
1475 if (local_err != NULL) {
1476 qmp_nbd_server_stop(NULL);
1477 break;
1481 qapi_free_BlockInfoList(block_list);
1483 exit:
1484 hmp_handle_error(mon, &local_err);
1487 void hmp_nbd_server_add(Monitor *mon, const QDict *qdict)
1489 const char *device = qdict_get_str(qdict, "device");
1490 int writable = qdict_get_try_bool(qdict, "writable", 0);
1491 Error *local_err = NULL;
1493 qmp_nbd_server_add(device, true, writable, &local_err);
1495 if (local_err != NULL) {
1496 hmp_handle_error(mon, &local_err);
1500 void hmp_nbd_server_stop(Monitor *mon, const QDict *qdict)
1502 Error *errp = NULL;
1504 qmp_nbd_server_stop(&errp);
1505 hmp_handle_error(mon, &errp);
1508 void hmp_chardev_add(Monitor *mon, const QDict *qdict)
1510 const char *args = qdict_get_str(qdict, "args");
1511 Error *err = NULL;
1512 QemuOpts *opts;
1514 opts = qemu_opts_parse(qemu_find_opts("chardev"), args, 1);
1515 if (opts == NULL) {
1516 error_setg(&err, "Parsing chardev args failed");
1517 } else {
1518 qemu_chr_new_from_opts(opts, NULL, &err);
1520 hmp_handle_error(mon, &err);
1523 void hmp_chardev_remove(Monitor *mon, const QDict *qdict)
1525 Error *local_err = NULL;
1527 qmp_chardev_remove(qdict_get_str(qdict, "id"), &local_err);
1528 hmp_handle_error(mon, &local_err);
1531 void hmp_qemu_io(Monitor *mon, const QDict *qdict)
1533 BlockDriverState *bs;
1534 const char* device = qdict_get_str(qdict, "device");
1535 const char* command = qdict_get_str(qdict, "command");
1536 Error *err = NULL;
1538 bs = bdrv_find(device);
1539 if (bs) {
1540 qemuio_command(bs, command);
1541 } else {
1542 error_set(&err, QERR_DEVICE_NOT_FOUND, device);
1545 hmp_handle_error(mon, &err);