hmp.c

   1 /*
   2  * Human Monitor Interface
   3  *
   4  * Copyright IBM, Corp. 2011
   5  *
   6  * Authors:
   7  *  Anthony Liguori   <aliguori@us.ibm.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2.  See
  10  * the COPYING file in the top-level directory.
  11  *
  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.
  14  */
  15
  16 #include "hmp.h"
  17 #include "qmp-commands.h"
  18
  19 static void hmp_handle_error(Monitor *mon, Error **errp)
  20 {
  21     if (error_is_set(errp)) {
  22         monitor_printf(mon, "%s\n", error_get_pretty(*errp));
  23         error_free(*errp);
  24     }
  25 }
  26
  27 void hmp_info_name(Monitor *mon)
  28 {
  29     NameInfo *info;
  30
  31     info = qmp_query_name(NULL);
  32     if (info->has_name) {
  33         monitor_printf(mon, "%s\n", info->name);
  34     }
  35     qapi_free_NameInfo(info);
  36 }
  37
  38 void hmp_info_version(Monitor *mon)
  39 {
  40     VersionInfo *info;
  41
  42     info = qmp_query_version(NULL);
  43
  44     monitor_printf(mon, "%" PRId64 ".%" PRId64 ".%" PRId64 "%s\n",
  45                    info->qemu.major, info->qemu.minor, info->qemu.micro,
  46                    info->package);
  47
  48     qapi_free_VersionInfo(info);
  49 }
  50
  51 void hmp_info_kvm(Monitor *mon)
  52 {
  53     KvmInfo *info;
  54
  55     info = qmp_query_kvm(NULL);
  56     monitor_printf(mon, "kvm support: ");
  57     if (info->present) {
  58         monitor_printf(mon, "%s\n", info->enabled ? "enabled" : "disabled");
  59     } else {
  60         monitor_printf(mon, "not compiled\n");
  61     }
  62
  63     qapi_free_KvmInfo(info);
  64 }
  65
  66 void hmp_info_status(Monitor *mon)
  67 {
  68     StatusInfo *info;
  69
  70     info = qmp_query_status(NULL);
  71
  72     monitor_printf(mon, "VM status: %s%s",
  73                    info->running ? "running" : "paused",
  74                    info->singlestep ? " (single step mode)" : "");
  75
  76     if (!info->running && info->status != RUN_STATE_PAUSED) {
  77         monitor_printf(mon, " (%s)", RunState_lookup[info->status]);
  78     }
  79
  80     monitor_printf(mon, "\n");
  81
  82     qapi_free_StatusInfo(info);
  83 }
  84
  85 void hmp_info_uuid(Monitor *mon)
  86 {
  87     UuidInfo *info;
  88
  89     info = qmp_query_uuid(NULL);
  90     monitor_printf(mon, "%s\n", info->UUID);
  91     qapi_free_UuidInfo(info);
  92 }
  93
  94 void hmp_info_chardev(Monitor *mon)
  95 {
  96     ChardevInfoList *char_info, *info;
  97
  98     char_info = qmp_query_chardev(NULL);
  99     for (info = char_info; info; info = info->next) {
 100         monitor_printf(mon, "%s: filename=%s\n", info->value->label,
 101                                                  info->value->filename);
 102     }
 103
 104     qapi_free_ChardevInfoList(char_info);
 105 }
 106
 107 void hmp_info_mice(Monitor *mon)
 108 {
 109     MouseInfoList *mice_list, *mouse;
 110
 111     mice_list = qmp_query_mice(NULL);
 112     if (!mice_list) {
 113         monitor_printf(mon, "No mouse devices connected\n");
 114         return;
 115     }
 116
 117     for (mouse = mice_list; mouse; mouse = mouse->next) {
 118         monitor_printf(mon, "%c Mouse #%" PRId64 ": %s%s\n",
 119                        mouse->value->current ? '*' : ' ',
 120                        mouse->value->index, mouse->value->name,
 121                        mouse->value->absolute ? " (absolute)" : "");
 122     }
 123
 124     qapi_free_MouseInfoList(mice_list);
 125 }
 126
 127 void hmp_info_migrate(Monitor *mon)
 128 {
 129     MigrationInfo *info;
 130
 131     info = qmp_query_migrate(NULL);
 132
 133     if (info->has_status) {
 134         monitor_printf(mon, "Migration status: %s\n", info->status);
 135     }
 136
 137     if (info->has_ram) {
 138         monitor_printf(mon, "transferred ram: %" PRIu64 " kbytes\n",
 139                        info->ram->transferred >> 10);
 140         monitor_printf(mon, "remaining ram: %" PRIu64 " kbytes\n",
 141                        info->ram->remaining >> 10);
 142         monitor_printf(mon, "total ram: %" PRIu64 " kbytes\n",
 143                        info->ram->total >> 10);
 144     }
 145
 146     if (info->has_disk) {
 147         monitor_printf(mon, "transferred disk: %" PRIu64 " kbytes\n",
 148                        info->disk->transferred >> 10);
 149         monitor_printf(mon, "remaining disk: %" PRIu64 " kbytes\n",
 150                        info->disk->remaining >> 10);
 151         monitor_printf(mon, "total disk: %" PRIu64 " kbytes\n",
 152                        info->disk->total >> 10);
 153     }
 154
 155     qapi_free_MigrationInfo(info);
 156 }
 157
 158 void hmp_info_cpus(Monitor *mon)
 159 {
 160     CpuInfoList *cpu_list, *cpu;
 161
 162     cpu_list = qmp_query_cpus(NULL);
 163
 164     for (cpu = cpu_list; cpu; cpu = cpu->next) {
 165         int active = ' ';
 166
 167         if (cpu->value->CPU == monitor_get_cpu_index()) {
 168             active = '*';
 169         }
 170
 171         monitor_printf(mon, "%c CPU #%" PRId64 ": ", active, cpu->value->CPU);
 172
 173         if (cpu->value->has_pc) {
 174             monitor_printf(mon, "pc=0x%016" PRIx64, cpu->value->pc);
 175         }
 176         if (cpu->value->has_nip) {
 177             monitor_printf(mon, "nip=0x%016" PRIx64, cpu->value->nip);
 178         }
 179         if (cpu->value->has_npc) {
 180             monitor_printf(mon, "pc=0x%016" PRIx64, cpu->value->pc);
 181             monitor_printf(mon, "npc=0x%016" PRIx64, cpu->value->npc);
 182         }
 183         if (cpu->value->has_PC) {
 184             monitor_printf(mon, "PC=0x%016" PRIx64, cpu->value->PC);
 185         }
 186
 187         if (cpu->value->halted) {
 188             monitor_printf(mon, " (halted)");
 189         }
 190
 191         monitor_printf(mon, " thread_id=%" PRId64 "\n", cpu->value->thread_id);
 192     }
 193
 194     qapi_free_CpuInfoList(cpu_list);
 195 }
 196
 197 void hmp_info_block(Monitor *mon)
 198 {
 199     BlockInfoList *block_list, *info;
 200
 201     block_list = qmp_query_block(NULL);
 202
 203     for (info = block_list; info; info = info->next) {
 204         monitor_printf(mon, "%s: removable=%d",
 205                        info->value->device, info->value->removable);
 206
 207         if (info->value->removable) {
 208             monitor_printf(mon, " locked=%d", info->value->locked);
 209             monitor_printf(mon, " tray-open=%d", info->value->tray_open);
 210         }
 211
 212         if (info->value->has_io_status) {
 213             monitor_printf(mon, " io-status=%s",
 214                            BlockDeviceIoStatus_lookup[info->value->io_status]);
 215         }
 216
 217         if (info->value->has_inserted) {
 218             monitor_printf(mon, " file=");
 219             monitor_print_filename(mon, info->value->inserted->file);
 220
 221             if (info->value->inserted->has_backing_file) {
 222                 monitor_printf(mon, " backing_file=");
 223                 monitor_print_filename(mon, info->value->inserted->backing_file);
 224             }
 225             monitor_printf(mon, " ro=%d drv=%s encrypted=%d",
 226                            info->value->inserted->ro,
 227                            info->value->inserted->drv,
 228                            info->value->inserted->encrypted);
 229
 230             monitor_printf(mon, " bps=%" PRId64 " bps_rd=%" PRId64
 231                             " bps_wr=%" PRId64 " iops=%" PRId64
 232                             " iops_rd=%" PRId64 " iops_wr=%" PRId64,
 233                             info->value->inserted->bps,
 234                             info->value->inserted->bps_rd,
 235                             info->value->inserted->bps_wr,
 236                             info->value->inserted->iops,
 237                             info->value->inserted->iops_rd,
 238                             info->value->inserted->iops_wr);
 239         } else {
 240             monitor_printf(mon, " [not inserted]");
 241         }
 242
 243         monitor_printf(mon, "\n");
 244     }
 245
 246     qapi_free_BlockInfoList(block_list);
 247 }
 248
 249 void hmp_info_blockstats(Monitor *mon)
 250 {
 251     BlockStatsList *stats_list, *stats;
 252
 253     stats_list = qmp_query_blockstats(NULL);
 254
 255     for (stats = stats_list; stats; stats = stats->next) {
 256         if (!stats->value->has_device) {
 257             continue;
 258         }
 259
 260         monitor_printf(mon, "%s:", stats->value->device);
 261         monitor_printf(mon, " rd_bytes=%" PRId64
 262                        " wr_bytes=%" PRId64
 263                        " rd_operations=%" PRId64
 264                        " wr_operations=%" PRId64
 265                        " flush_operations=%" PRId64
 266                        " wr_total_time_ns=%" PRId64
 267                        " rd_total_time_ns=%" PRId64
 268                        " flush_total_time_ns=%" PRId64
 269                        "\n",
 270                        stats->value->stats->rd_bytes,
 271                        stats->value->stats->wr_bytes,
 272                        stats->value->stats->rd_operations,
 273                        stats->value->stats->wr_operations,
 274                        stats->value->stats->flush_operations,
 275                        stats->value->stats->wr_total_time_ns,
 276                        stats->value->stats->rd_total_time_ns,
 277                        stats->value->stats->flush_total_time_ns);
 278     }
 279
 280     qapi_free_BlockStatsList(stats_list);
 281 }
 282
 283 void hmp_info_vnc(Monitor *mon)
 284 {
 285     VncInfo *info;
 286     Error *err = NULL;
 287     VncClientInfoList *client;
 288
 289     info = qmp_query_vnc(&err);
 290     if (err) {
 291         monitor_printf(mon, "%s\n", error_get_pretty(err));
 292         error_free(err);
 293         return;
 294     }
 295
 296     if (!info->enabled) {
 297         monitor_printf(mon, "Server: disabled\n");
 298         goto out;
 299     }
 300
 301     monitor_printf(mon, "Server:\n");
 302     if (info->has_host && info->has_service) {
 303         monitor_printf(mon, "     address: %s:%s\n", info->host, info->service);
 304     }
 305     if (info->has_auth) {
 306         monitor_printf(mon, "        auth: %s\n", info->auth);
 307     }
 308
 309     if (!info->has_clients || info->clients == NULL) {
 310         monitor_printf(mon, "Client: none\n");
 311     } else {
 312         for (client = info->clients; client; client = client->next) {
 313             monitor_printf(mon, "Client:\n");
 314             monitor_printf(mon, "     address: %s:%s\n",
 315                            client->value->host, client->value->service);
 316             monitor_printf(mon, "  x509_dname: %s\n",
 317                            client->value->x509_dname ?
 318                            client->value->x509_dname : "none");
 319             monitor_printf(mon, "    username: %s\n",
 320                            client->value->has_sasl_username ?
 321                            client->value->sasl_username : "none");
 322         }
 323     }
 324
 325 out:
 326     qapi_free_VncInfo(info);
 327 }
 328
 329 void hmp_info_spice(Monitor *mon)
 330 {
 331     SpiceChannelList *chan;
 332     SpiceInfo *info;
 333
 334     info = qmp_query_spice(NULL);
 335
 336     if (!info->enabled) {
 337         monitor_printf(mon, "Server: disabled\n");
 338         goto out;
 339     }
 340
 341     monitor_printf(mon, "Server:\n");
 342     if (info->has_port) {
 343         monitor_printf(mon, "     address: %s:%" PRId64 "\n",
 344                        info->host, info->port);
 345     }
 346     if (info->has_tls_port) {
 347         monitor_printf(mon, "     address: %s:%" PRId64 " [tls]\n",
 348                        info->host, info->tls_port);
 349     }
 350     monitor_printf(mon, "        auth: %s\n", info->auth);
 351     monitor_printf(mon, "    compiled: %s\n", info->compiled_version);
 352
 353     if (!info->has_channels || info->channels == NULL) {
 354         monitor_printf(mon, "Channels: none\n");
 355     } else {
 356         for (chan = info->channels; chan; chan = chan->next) {
 357             monitor_printf(mon, "Channel:\n");
 358             monitor_printf(mon, "     address: %s:%s%s\n",
 359                            chan->value->host, chan->value->port,
 360                            chan->value->tls ? " [tls]" : "");
 361             monitor_printf(mon, "     session: %" PRId64 "\n",
 362                            chan->value->connection_id);
 363             monitor_printf(mon, "     channel: %" PRId64 ":%" PRId64 "\n",
 364                            chan->value->channel_type, chan->value->channel_id);
 365         }
 366     }
 367
 368 out:
 369     qapi_free_SpiceInfo(info);
 370 }
 371
 372 void hmp_info_balloon(Monitor *mon)
 373 {
 374     BalloonInfo *info;
 375     Error *err = NULL;
 376
 377     info = qmp_query_balloon(&err);
 378     if (err) {
 379         monitor_printf(mon, "%s\n", error_get_pretty(err));
 380         error_free(err);
 381         return;
 382     }
 383
 384     monitor_printf(mon, "balloon: actual=%" PRId64, info->actual >> 20);
 385     if (info->has_mem_swapped_in) {
 386         monitor_printf(mon, " mem_swapped_in=%" PRId64, info->mem_swapped_in);
 387     }
 388     if (info->has_mem_swapped_out) {
 389         monitor_printf(mon, " mem_swapped_out=%" PRId64, info->mem_swapped_out);
 390     }
 391     if (info->has_major_page_faults) {
 392         monitor_printf(mon, " major_page_faults=%" PRId64,
 393                        info->major_page_faults);
 394     }
 395     if (info->has_minor_page_faults) {
 396         monitor_printf(mon, " minor_page_faults=%" PRId64,
 397                        info->minor_page_faults);
 398     }
 399     if (info->has_free_mem) {
 400         monitor_printf(mon, " free_mem=%" PRId64, info->free_mem);
 401     }
 402     if (info->has_total_mem) {
 403         monitor_printf(mon, " total_mem=%" PRId64, info->total_mem);
 404     }
 405
 406     monitor_printf(mon, "\n");
 407
 408     qapi_free_BalloonInfo(info);
 409 }
 410
 411 static void hmp_info_pci_device(Monitor *mon, const PciDeviceInfo *dev)
 412 {
 413     PciMemoryRegionList *region;
 414
 415     monitor_printf(mon, "  Bus %2" PRId64 ", ", dev->bus);
 416     monitor_printf(mon, "device %3" PRId64 ", function %" PRId64 ":\n",
 417                    dev->slot, dev->function);
 418     monitor_printf(mon, "    ");
 419
 420     if (dev->class_info.has_desc) {
 421         monitor_printf(mon, "%s", dev->class_info.desc);
 422     } else {
 423         monitor_printf(mon, "Class %04" PRId64, dev->class_info.class);
 424     }
 425
 426     monitor_printf(mon, ": PCI device %04" PRIx64 ":%04" PRIx64 "\n",
 427                    dev->id.vendor, dev->id.device);
 428
 429     if (dev->has_irq) {
 430         monitor_printf(mon, "      IRQ %" PRId64 ".\n", dev->irq);
 431     }
 432
 433     if (dev->has_pci_bridge) {
 434         monitor_printf(mon, "      BUS %" PRId64 ".\n",
 435                        dev->pci_bridge->bus.number);
 436         monitor_printf(mon, "      secondary bus %" PRId64 ".\n",
 437                        dev->pci_bridge->bus.secondary);
 438         monitor_printf(mon, "      subordinate bus %" PRId64 ".\n",
 439                        dev->pci_bridge->bus.subordinate);
 440
 441         monitor_printf(mon, "      IO range [0x%04"PRIx64", 0x%04"PRIx64"]\n",
 442                        dev->pci_bridge->bus.io_range->base,
 443                        dev->pci_bridge->bus.io_range->limit);
 444
 445         monitor_printf(mon,
 446                        "      memory range [0x%08"PRIx64", 0x%08"PRIx64"]\n",
 447                        dev->pci_bridge->bus.memory_range->base,
 448                        dev->pci_bridge->bus.memory_range->limit);
 449
 450         monitor_printf(mon, "      prefetchable memory range "
 451                        "[0x%08"PRIx64", 0x%08"PRIx64"]\n",
 452                        dev->pci_bridge->bus.prefetchable_range->base,
 453                        dev->pci_bridge->bus.prefetchable_range->limit);
 454     }
 455
 456     for (region = dev->regions; region; region = region->next) {
 457         uint64_t addr, size;
 458
 459         addr = region->value->address;
 460         size = region->value->size;
 461
 462         monitor_printf(mon, "      BAR%" PRId64 ": ", region->value->bar);
 463
 464         if (!strcmp(region->value->type, "io")) {
 465             monitor_printf(mon, "I/O at 0x%04" PRIx64
 466                                 " [0x%04" PRIx64 "].\n",
 467                            addr, addr + size - 1);
 468         } else {
 469             monitor_printf(mon, "%d bit%s memory at 0x%08" PRIx64
 470                                " [0x%08" PRIx64 "].\n",
 471                            region->value->mem_type_64 ? 64 : 32,
 472                            region->value->prefetch ? " prefetchable" : "",
 473                            addr, addr + size - 1);
 474         }
 475     }
 476
 477     monitor_printf(mon, "      id \"%s\"\n", dev->qdev_id);
 478
 479     if (dev->has_pci_bridge) {
 480         if (dev->pci_bridge->has_devices) {
 481             PciDeviceInfoList *cdev;
 482             for (cdev = dev->pci_bridge->devices; cdev; cdev = cdev->next) {
 483                 hmp_info_pci_device(mon, cdev->value);
 484             }
 485         }
 486     }
 487 }
 488
 489 void hmp_info_pci(Monitor *mon)
 490 {
 491     PciInfoList *info_list, *info;
 492     Error *err = NULL;
 493
 494     info_list = qmp_query_pci(&err);
 495     if (err) {
 496         monitor_printf(mon, "PCI devices not supported\n");
 497         error_free(err);
 498         return;
 499     }
 500
 501     for (info = info_list; info; info = info->next) {
 502         PciDeviceInfoList *dev;
 503
 504         for (dev = info->value->devices; dev; dev = dev->next) {
 505             hmp_info_pci_device(mon, dev->value);
 506         }
 507     }
 508
 509     qapi_free_PciInfoList(info_list);
 510 }
 511
 512 void hmp_info_block_jobs(Monitor *mon)
 513 {
 514     BlockJobInfoList *list;
 515     Error *err = NULL;
 516
 517     list = qmp_query_block_jobs(&err);
 518     assert(!err);
 519
 520     if (!list) {
 521         monitor_printf(mon, "No active jobs\n");
 522         return;
 523     }
 524
 525     while (list) {
 526         if (strcmp(list->value->type, "stream") == 0) {
 527             monitor_printf(mon, "Streaming device %s: Completed %" PRId64
 528                            " of %" PRId64 " bytes, speed limit %" PRId64
 529                            " bytes/s\n",
 530                            list->value->device,
 531                            list->value->offset,
 532                            list->value->len,
 533                            list->value->speed);
 534         } else {
 535             monitor_printf(mon, "Type %s, device %s: Completed %" PRId64
 536                            " of %" PRId64 " bytes, speed limit %" PRId64
 537                            " bytes/s\n",
 538                            list->value->type,
 539                            list->value->device,
 540                            list->value->offset,
 541                            list->value->len,
 542                            list->value->speed);
 543         }
 544         list = list->next;
 545     }
 546 }
 547
 548 void hmp_quit(Monitor *mon, const QDict *qdict)
 549 {
 550     monitor_suspend(mon);
 551     qmp_quit(NULL);
 552 }
 553
 554 void hmp_stop(Monitor *mon, const QDict *qdict)
 555 {
 556     qmp_stop(NULL);
 557 }
 558
 559 void hmp_system_reset(Monitor *mon, const QDict *qdict)
 560 {
 561     qmp_system_reset(NULL);
 562 }
 563
 564 void hmp_system_powerdown(Monitor *mon, const QDict *qdict)
 565 {
 566     qmp_system_powerdown(NULL);
 567 }
 568
 569 void hmp_cpu(Monitor *mon, const QDict *qdict)
 570 {
 571     int64_t cpu_index;
 572
 573     /* XXX: drop the monitor_set_cpu() usage when all HMP commands that
 574             use it are converted to the QAPI */
 575     cpu_index = qdict_get_int(qdict, "index");
 576     if (monitor_set_cpu(cpu_index) < 0) {
 577         monitor_printf(mon, "invalid CPU index\n");
 578     }
 579 }
 580
 581 void hmp_memsave(Monitor *mon, const QDict *qdict)
 582 {
 583     uint32_t size = qdict_get_int(qdict, "size");
 584     const char *filename = qdict_get_str(qdict, "filename");
 585     uint64_t addr = qdict_get_int(qdict, "val");
 586     Error *errp = NULL;
 587
 588     qmp_memsave(addr, size, filename, true, monitor_get_cpu_index(), &errp);
 589     hmp_handle_error(mon, &errp);
 590 }
 591
 592 void hmp_pmemsave(Monitor *mon, const QDict *qdict)
 593 {
 594     uint32_t size = qdict_get_int(qdict, "size");
 595     const char *filename = qdict_get_str(qdict, "filename");
 596     uint64_t addr = qdict_get_int(qdict, "val");
 597     Error *errp = NULL;
 598
 599     qmp_pmemsave(addr, size, filename, &errp);
 600     hmp_handle_error(mon, &errp);
 601 }
 602
 603 static void hmp_cont_cb(void *opaque, int err)
 604 {
 605     Monitor *mon = opaque;
 606
 607     if (!err) {
 608         hmp_cont(mon, NULL);
 609     }
 610 }
 611
 612 void hmp_cont(Monitor *mon, const QDict *qdict)
 613 {
 614     Error *errp = NULL;
 615
 616     qmp_cont(&errp);
 617     if (error_is_set(&errp)) {
 618         if (error_is_type(errp, QERR_DEVICE_ENCRYPTED)) {
 619             const char *device;
 620
 621             /* The device is encrypted. Ask the user for the password
 622                and retry */
 623
 624             device = error_get_field(errp, "device");
 625             assert(device != NULL);
 626
 627             monitor_read_block_device_key(mon, device, hmp_cont_cb, mon);
 628             error_free(errp);
 629             return;
 630         }
 631         hmp_handle_error(mon, &errp);
 632     }
 633 }
 634
 635 void hmp_system_wakeup(Monitor *mon, const QDict *qdict)
 636 {
 637     qmp_system_wakeup(NULL);
 638 }
 639
 640 void hmp_inject_nmi(Monitor *mon, const QDict *qdict)
 641 {
 642     Error *errp = NULL;
 643
 644     qmp_inject_nmi(&errp);
 645     hmp_handle_error(mon, &errp);
 646 }
 647
 648 void hmp_set_link(Monitor *mon, const QDict *qdict)
 649 {
 650     const char *name = qdict_get_str(qdict, "name");
 651     int up = qdict_get_bool(qdict, "up");
 652     Error *errp = NULL;
 653
 654     qmp_set_link(name, up, &errp);
 655     hmp_handle_error(mon, &errp);
 656 }
 657
 658 void hmp_block_passwd(Monitor *mon, const QDict *qdict)
 659 {
 660     const char *device = qdict_get_str(qdict, "device");
 661     const char *password = qdict_get_str(qdict, "password");
 662     Error *errp = NULL;
 663
 664     qmp_block_passwd(device, password, &errp);
 665     hmp_handle_error(mon, &errp);
 666 }
 667
 668 void hmp_balloon(Monitor *mon, const QDict *qdict)
 669 {
 670     int64_t value = qdict_get_int(qdict, "value");
 671     Error *errp = NULL;
 672
 673     qmp_balloon(value, &errp);
 674     if (error_is_set(&errp)) {
 675         monitor_printf(mon, "balloon: %s\n", error_get_pretty(errp));
 676         error_free(errp);
 677     }
 678 }
 679
 680 void hmp_block_resize(Monitor *mon, const QDict *qdict)
 681 {
 682     const char *device = qdict_get_str(qdict, "device");
 683     int64_t size = qdict_get_int(qdict, "size");
 684     Error *errp = NULL;
 685
 686     qmp_block_resize(device, size, &errp);
 687     hmp_handle_error(mon, &errp);
 688 }
 689
 690 void hmp_snapshot_blkdev(Monitor *mon, const QDict *qdict)
 691 {
 692     const char *device = qdict_get_str(qdict, "device");
 693     const char *filename = qdict_get_try_str(qdict, "snapshot-file");
 694     const char *format = qdict_get_try_str(qdict, "format");
 695     int reuse = qdict_get_try_bool(qdict, "reuse", 0);
 696     enum NewImageMode mode;
 697     Error *errp = NULL;
 698
 699     if (!filename) {
 700         /* In the future, if 'snapshot-file' is not specified, the snapshot
 701            will be taken internally. Today it's actually required. */
 702         error_set(&errp, QERR_MISSING_PARAMETER, "snapshot-file");
 703         hmp_handle_error(mon, &errp);
 704         return;
 705     }
 706
 707     mode = reuse ? NEW_IMAGE_MODE_EXISTING : NEW_IMAGE_MODE_ABSOLUTE_PATHS;
 708     qmp_blockdev_snapshot_sync(device, filename, !!format, format,
 709                                true, mode, &errp);
 710     hmp_handle_error(mon, &errp);
 711 }
 712
 713 void hmp_migrate_cancel(Monitor *mon, const QDict *qdict)
 714 {
 715     qmp_migrate_cancel(NULL);
 716 }
 717
 718 void hmp_migrate_set_downtime(Monitor *mon, const QDict *qdict)
 719 {
 720     double value = qdict_get_double(qdict, "value");
 721     qmp_migrate_set_downtime(value, NULL);
 722 }
 723
 724 void hmp_migrate_set_speed(Monitor *mon, const QDict *qdict)
 725 {
 726     int64_t value = qdict_get_int(qdict, "value");
 727     qmp_migrate_set_speed(value, NULL);
 728 }
 729
 730 void hmp_set_password(Monitor *mon, const QDict *qdict)
 731 {
 732     const char *protocol  = qdict_get_str(qdict, "protocol");
 733     const char *password  = qdict_get_str(qdict, "password");
 734     const char *connected = qdict_get_try_str(qdict, "connected");
 735     Error *err = NULL;
 736
 737     qmp_set_password(protocol, password, !!connected, connected, &err);
 738     hmp_handle_error(mon, &err);
 739 }
 740
 741 void hmp_expire_password(Monitor *mon, const QDict *qdict)
 742 {
 743     const char *protocol  = qdict_get_str(qdict, "protocol");
 744     const char *whenstr = qdict_get_str(qdict, "time");
 745     Error *err = NULL;
 746
 747     qmp_expire_password(protocol, whenstr, &err);
 748     hmp_handle_error(mon, &err);
 749 }
 750
 751 void hmp_eject(Monitor *mon, const QDict *qdict)
 752 {
 753     int force = qdict_get_try_bool(qdict, "force", 0);
 754     const char *device = qdict_get_str(qdict, "device");
 755     Error *err = NULL;
 756
 757     qmp_eject(device, true, force, &err);
 758     hmp_handle_error(mon, &err);
 759 }
 760
 761 static void hmp_change_read_arg(Monitor *mon, const char *password,
 762                                 void *opaque)
 763 {
 764     qmp_change_vnc_password(password, NULL);
 765     monitor_read_command(mon, 1);
 766 }
 767
 768 static void cb_hmp_change_bdrv_pwd(Monitor *mon, const char *password,
 769                                    void *opaque)
 770 {
 771     Error *encryption_err = opaque;
 772     Error *err = NULL;
 773     const char *device;
 774
 775     device = error_get_field(encryption_err, "device");
 776
 777     qmp_block_passwd(device, password, &err);
 778     hmp_handle_error(mon, &err);
 779     error_free(encryption_err);
 780
 781     monitor_read_command(mon, 1);
 782 }
 783
 784 void hmp_change(Monitor *mon, const QDict *qdict)
 785 {
 786     const char *device = qdict_get_str(qdict, "device");
 787     const char *target = qdict_get_str(qdict, "target");
 788     const char *arg = qdict_get_try_str(qdict, "arg");
 789     Error *err = NULL;
 790
 791     if (strcmp(device, "vnc") == 0 &&
 792             (strcmp(target, "passwd") == 0 ||
 793              strcmp(target, "password") == 0)) {
 794         if (!arg) {
 795             monitor_read_password(mon, hmp_change_read_arg, NULL);
 796             return;
 797         }
 798     }
 799
 800     qmp_change(device, target, !!arg, arg, &err);
 801     if (error_is_type(err, QERR_DEVICE_ENCRYPTED)) {
 802         monitor_printf(mon, "%s (%s) is encrypted.\n",
 803                        error_get_field(err, "device"),
 804                        error_get_field(err, "filename"));
 805         if (!monitor_get_rs(mon)) {
 806             monitor_printf(mon,
 807                     "terminal does not support password prompting\n");
 808             error_free(err);
 809             return;
 810         }
 811         readline_start(monitor_get_rs(mon), "Password: ", 1,
 812                        cb_hmp_change_bdrv_pwd, err);
 813         return;
 814     }
 815     hmp_handle_error(mon, &err);
 816 }
 817
 818 void hmp_block_set_io_throttle(Monitor *mon, const QDict *qdict)
 819 {
 820     Error *err = NULL;
 821
 822     qmp_block_set_io_throttle(qdict_get_str(qdict, "device"),
 823                               qdict_get_int(qdict, "bps"),
 824                               qdict_get_int(qdict, "bps_rd"),
 825                               qdict_get_int(qdict, "bps_wr"),
 826                               qdict_get_int(qdict, "iops"),
 827                               qdict_get_int(qdict, "iops_rd"),
 828                               qdict_get_int(qdict, "iops_wr"), &err);
 829     hmp_handle_error(mon, &err);
 830 }
 831
 832 void hmp_block_stream(Monitor *mon, const QDict *qdict)
 833 {
 834     Error *error = NULL;
 835     const char *device = qdict_get_str(qdict, "device");
 836     const char *base = qdict_get_try_str(qdict, "base");
 837
 838     qmp_block_stream(device, base != NULL, base, &error);
 839
 840     hmp_handle_error(mon, &error);
 841 }
 842
 843 void hmp_block_job_set_speed(Monitor *mon, const QDict *qdict)
 844 {
 845     Error *error = NULL;
 846     const char *device = qdict_get_str(qdict, "device");
 847     int64_t value = qdict_get_int(qdict, "value");
 848
 849     qmp_block_job_set_speed(device, value, &error);
 850
 851     hmp_handle_error(mon, &error);
 852 }
 853
 854 void hmp_block_job_cancel(Monitor *mon, const QDict *qdict)
 855 {
 856     Error *error = NULL;
 857     const char *device = qdict_get_str(qdict, "device");
 858
 859     qmp_block_job_cancel(device, &error);
 860
 861     hmp_handle_error(mon, &error);
 862 }