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 "net.h"
  18 #include "qemu-option.h"
  19 #include "qemu-timer.h"
  20 #include "qmp-commands.h"
  21 #include "monitor.h"
  22
  23 static void hmp_handle_error(Monitor *mon, Error **errp)
  24 {
  25     if (error_is_set(errp)) {
  26         monitor_printf(mon, "%s\n", error_get_pretty(*errp));
  27         error_free(*errp);
  28     }
  29 }
  30
  31 void hmp_info_name(Monitor *mon)
  32 {
  33     NameInfo *info;
  34
  35     info = qmp_query_name(NULL);
  36     if (info->has_name) {
  37         monitor_printf(mon, "%s\n", info->name);
  38     }
  39     qapi_free_NameInfo(info);
  40 }
  41
  42 void hmp_info_version(Monitor *mon)
  43 {
  44     VersionInfo *info;
  45
  46     info = qmp_query_version(NULL);
  47
  48     monitor_printf(mon, "%" PRId64 ".%" PRId64 ".%" PRId64 "%s\n",
  49                    info->qemu.major, info->qemu.minor, info->qemu.micro,
  50                    info->package);
  51
  52     qapi_free_VersionInfo(info);
  53 }
  54
  55 void hmp_info_kvm(Monitor *mon)
  56 {
  57     KvmInfo *info;
  58
  59     info = qmp_query_kvm(NULL);
  60     monitor_printf(mon, "kvm support: ");
  61     if (info->present) {
  62         monitor_printf(mon, "%s\n", info->enabled ? "enabled" : "disabled");
  63     } else {
  64         monitor_printf(mon, "not compiled\n");
  65     }
  66
  67     qapi_free_KvmInfo(info);
  68 }
  69
  70 void hmp_info_status(Monitor *mon)
  71 {
  72     StatusInfo *info;
  73
  74     info = qmp_query_status(NULL);
  75
  76     monitor_printf(mon, "VM status: %s%s",
  77                    info->running ? "running" : "paused",
  78                    info->singlestep ? " (single step mode)" : "");
  79
  80     if (!info->running && info->status != RUN_STATE_PAUSED) {
  81         monitor_printf(mon, " (%s)", RunState_lookup[info->status]);
  82     }
  83
  84     monitor_printf(mon, "\n");
  85
  86     qapi_free_StatusInfo(info);
  87 }
  88
  89 void hmp_info_uuid(Monitor *mon)
  90 {
  91     UuidInfo *info;
  92
  93     info = qmp_query_uuid(NULL);
  94     monitor_printf(mon, "%s\n", info->UUID);
  95     qapi_free_UuidInfo(info);
  96 }
  97
  98 void hmp_info_chardev(Monitor *mon)
  99 {
 100     ChardevInfoList *char_info, *info;
 101
 102     char_info = qmp_query_chardev(NULL);
 103     for (info = char_info; info; info = info->next) {
 104         monitor_printf(mon, "%s: filename=%s\n", info->value->label,
 105                                                  info->value->filename);
 106     }
 107
 108     qapi_free_ChardevInfoList(char_info);
 109 }
 110
 111 void hmp_info_mice(Monitor *mon)
 112 {
 113     MouseInfoList *mice_list, *mouse;
 114
 115     mice_list = qmp_query_mice(NULL);
 116     if (!mice_list) {
 117         monitor_printf(mon, "No mouse devices connected\n");
 118         return;
 119     }
 120
 121     for (mouse = mice_list; mouse; mouse = mouse->next) {
 122         monitor_printf(mon, "%c Mouse #%" PRId64 ": %s%s\n",
 123                        mouse->value->current ? '*' : ' ',
 124                        mouse->value->index, mouse->value->name,
 125                        mouse->value->absolute ? " (absolute)" : "");
 126     }
 127
 128     qapi_free_MouseInfoList(mice_list);
 129 }
 130
 131 void hmp_info_migrate(Monitor *mon)
 132 {
 133     MigrationInfo *info;
 134
 135     info = qmp_query_migrate(NULL);
 136
 137     if (info->has_status) {
 138         monitor_printf(mon, "Migration status: %s\n", info->status);
 139     }
 140
 141     if (info->has_ram) {
 142         monitor_printf(mon, "transferred ram: %" PRIu64 " kbytes\n",
 143                        info->ram->transferred >> 10);
 144         monitor_printf(mon, "remaining ram: %" PRIu64 " kbytes\n",
 145                        info->ram->remaining >> 10);
 146         monitor_printf(mon, "total ram: %" PRIu64 " kbytes\n",
 147                        info->ram->total >> 10);
 148         monitor_printf(mon, "total time: %" PRIu64 " milliseconds\n",
 149                        info->ram->total_time);
 150     }
 151
 152     if (info->has_disk) {
 153         monitor_printf(mon, "transferred disk: %" PRIu64 " kbytes\n",
 154                        info->disk->transferred >> 10);
 155         monitor_printf(mon, "remaining disk: %" PRIu64 " kbytes\n",
 156                        info->disk->remaining >> 10);
 157         monitor_printf(mon, "total disk: %" PRIu64 " kbytes\n",
 158                        info->disk->total >> 10);
 159     }
 160
 161     qapi_free_MigrationInfo(info);
 162 }
 163
 164 void hmp_info_cpus(Monitor *mon)
 165 {
 166     CpuInfoList *cpu_list, *cpu;
 167
 168     cpu_list = qmp_query_cpus(NULL);
 169
 170     for (cpu = cpu_list; cpu; cpu = cpu->next) {
 171         int active = ' ';
 172
 173         if (cpu->value->CPU == monitor_get_cpu_index()) {
 174             active = '*';
 175         }
 176
 177         monitor_printf(mon, "%c CPU #%" PRId64 ": ", active, cpu->value->CPU);
 178
 179         if (cpu->value->has_pc) {
 180             monitor_printf(mon, "pc=0x%016" PRIx64, cpu->value->pc);
 181         }
 182         if (cpu->value->has_nip) {
 183             monitor_printf(mon, "nip=0x%016" PRIx64, cpu->value->nip);
 184         }
 185         if (cpu->value->has_npc) {
 186             monitor_printf(mon, "pc=0x%016" PRIx64, cpu->value->pc);
 187             monitor_printf(mon, "npc=0x%016" PRIx64, cpu->value->npc);
 188         }
 189         if (cpu->value->has_PC) {
 190             monitor_printf(mon, "PC=0x%016" PRIx64, cpu->value->PC);
 191         }
 192
 193         if (cpu->value->halted) {
 194             monitor_printf(mon, " (halted)");
 195         }
 196
 197         monitor_printf(mon, " thread_id=%" PRId64 "\n", cpu->value->thread_id);
 198     }
 199
 200     qapi_free_CpuInfoList(cpu_list);
 201 }
 202
 203 void hmp_info_block(Monitor *mon)
 204 {
 205     BlockInfoList *block_list, *info;
 206
 207     block_list = qmp_query_block(NULL);
 208
 209     for (info = block_list; info; info = info->next) {
 210         monitor_printf(mon, "%s: removable=%d",
 211                        info->value->device, info->value->removable);
 212
 213         if (info->value->removable) {
 214             monitor_printf(mon, " locked=%d", info->value->locked);
 215             monitor_printf(mon, " tray-open=%d", info->value->tray_open);
 216         }
 217
 218         if (info->value->has_io_status) {
 219             monitor_printf(mon, " io-status=%s",
 220                            BlockDeviceIoStatus_lookup[info->value->io_status]);
 221         }
 222
 223         if (info->value->has_inserted) {
 224             monitor_printf(mon, " file=");
 225             monitor_print_filename(mon, info->value->inserted->file);
 226
 227             if (info->value->inserted->has_backing_file) {
 228                 monitor_printf(mon, " backing_file=");
 229                 monitor_print_filename(mon, info->value->inserted->backing_file);
 230             }
 231             monitor_printf(mon, " ro=%d drv=%s encrypted=%d",
 232                            info->value->inserted->ro,
 233                            info->value->inserted->drv,
 234                            info->value->inserted->encrypted);
 235
 236             monitor_printf(mon, " bps=%" PRId64 " bps_rd=%" PRId64
 237                             " bps_wr=%" PRId64 " iops=%" PRId64
 238                             " iops_rd=%" PRId64 " iops_wr=%" PRId64,
 239                             info->value->inserted->bps,
 240                             info->value->inserted->bps_rd,
 241                             info->value->inserted->bps_wr,
 242                             info->value->inserted->iops,
 243                             info->value->inserted->iops_rd,
 244                             info->value->inserted->iops_wr);
 245         } else {
 246             monitor_printf(mon, " [not inserted]");
 247         }
 248
 249         monitor_printf(mon, "\n");
 250     }
 251
 252     qapi_free_BlockInfoList(block_list);
 253 }
 254
 255 void hmp_info_blockstats(Monitor *mon)
 256 {
 257     BlockStatsList *stats_list, *stats;
 258
 259     stats_list = qmp_query_blockstats(NULL);
 260
 261     for (stats = stats_list; stats; stats = stats->next) {
 262         if (!stats->value->has_device) {
 263             continue;
 264         }
 265
 266         monitor_printf(mon, "%s:", stats->value->device);
 267         monitor_printf(mon, " rd_bytes=%" PRId64
 268                        " wr_bytes=%" PRId64
 269                        " rd_operations=%" PRId64
 270                        " wr_operations=%" PRId64
 271                        " flush_operations=%" PRId64
 272                        " wr_total_time_ns=%" PRId64
 273                        " rd_total_time_ns=%" PRId64
 274                        " flush_total_time_ns=%" PRId64
 275                        "\n",
 276                        stats->value->stats->rd_bytes,
 277                        stats->value->stats->wr_bytes,
 278                        stats->value->stats->rd_operations,
 279                        stats->value->stats->wr_operations,
 280                        stats->value->stats->flush_operations,
 281                        stats->value->stats->wr_total_time_ns,
 282                        stats->value->stats->rd_total_time_ns,
 283                        stats->value->stats->flush_total_time_ns);
 284     }
 285
 286     qapi_free_BlockStatsList(stats_list);
 287 }
 288
 289 void hmp_info_vnc(Monitor *mon)
 290 {
 291     VncInfo *info;
 292     Error *err = NULL;
 293     VncClientInfoList *client;
 294
 295     info = qmp_query_vnc(&err);
 296     if (err) {
 297         monitor_printf(mon, "%s\n", error_get_pretty(err));
 298         error_free(err);
 299         return;
 300     }
 301
 302     if (!info->enabled) {
 303         monitor_printf(mon, "Server: disabled\n");
 304         goto out;
 305     }
 306
 307     monitor_printf(mon, "Server:\n");
 308     if (info->has_host && info->has_service) {
 309         monitor_printf(mon, "     address: %s:%s\n", info->host, info->service);
 310     }
 311     if (info->has_auth) {
 312         monitor_printf(mon, "        auth: %s\n", info->auth);
 313     }
 314
 315     if (!info->has_clients || info->clients == NULL) {
 316         monitor_printf(mon, "Client: none\n");
 317     } else {
 318         for (client = info->clients; client; client = client->next) {
 319             monitor_printf(mon, "Client:\n");
 320             monitor_printf(mon, "     address: %s:%s\n",
 321                            client->value->host, client->value->service);
 322             monitor_printf(mon, "  x509_dname: %s\n",
 323                            client->value->x509_dname ?
 324                            client->value->x509_dname : "none");
 325             monitor_printf(mon, "    username: %s\n",
 326                            client->value->has_sasl_username ?
 327                            client->value->sasl_username : "none");
 328         }
 329     }
 330
 331 out:
 332     qapi_free_VncInfo(info);
 333 }
 334
 335 void hmp_info_spice(Monitor *mon)
 336 {
 337     SpiceChannelList *chan;
 338     SpiceInfo *info;
 339
 340     info = qmp_query_spice(NULL);
 341
 342     if (!info->enabled) {
 343         monitor_printf(mon, "Server: disabled\n");
 344         goto out;
 345     }
 346
 347     monitor_printf(mon, "Server:\n");
 348     if (info->has_port) {
 349         monitor_printf(mon, "     address: %s:%" PRId64 "\n",
 350                        info->host, info->port);
 351     }
 352     if (info->has_tls_port) {
 353         monitor_printf(mon, "     address: %s:%" PRId64 " [tls]\n",
 354                        info->host, info->tls_port);
 355     }
 356     monitor_printf(mon, "        auth: %s\n", info->auth);
 357     monitor_printf(mon, "    compiled: %s\n", info->compiled_version);
 358     monitor_printf(mon, "  mouse-mode: %s\n",
 359                    SpiceQueryMouseMode_lookup[info->mouse_mode]);
 360
 361     if (!info->has_channels || info->channels == NULL) {
 362         monitor_printf(mon, "Channels: none\n");
 363     } else {
 364         for (chan = info->channels; chan; chan = chan->next) {
 365             monitor_printf(mon, "Channel:\n");
 366             monitor_printf(mon, "     address: %s:%s%s\n",
 367                            chan->value->host, chan->value->port,
 368                            chan->value->tls ? " [tls]" : "");
 369             monitor_printf(mon, "     session: %" PRId64 "\n",
 370                            chan->value->connection_id);
 371             monitor_printf(mon, "     channel: %" PRId64 ":%" PRId64 "\n",
 372                            chan->value->channel_type, chan->value->channel_id);
 373         }
 374     }
 375
 376 out:
 377     qapi_free_SpiceInfo(info);
 378 }
 379
 380 void hmp_info_balloon(Monitor *mon)
 381 {
 382     BalloonInfo *info;
 383     Error *err = NULL;
 384
 385     info = qmp_query_balloon(&err);
 386     if (err) {
 387         monitor_printf(mon, "%s\n", error_get_pretty(err));
 388         error_free(err);
 389         return;
 390     }
 391
 392     monitor_printf(mon, "balloon: actual=%" PRId64, info->actual >> 20);
 393     if (info->has_mem_swapped_in) {
 394         monitor_printf(mon, " mem_swapped_in=%" PRId64, info->mem_swapped_in);
 395     }
 396     if (info->has_mem_swapped_out) {
 397         monitor_printf(mon, " mem_swapped_out=%" PRId64, info->mem_swapped_out);
 398     }
 399     if (info->has_major_page_faults) {
 400         monitor_printf(mon, " major_page_faults=%" PRId64,
 401                        info->major_page_faults);
 402     }
 403     if (info->has_minor_page_faults) {
 404         monitor_printf(mon, " minor_page_faults=%" PRId64,
 405                        info->minor_page_faults);
 406     }
 407     if (info->has_free_mem) {
 408         monitor_printf(mon, " free_mem=%" PRId64, info->free_mem);
 409     }
 410     if (info->has_total_mem) {
 411         monitor_printf(mon, " total_mem=%" PRId64, info->total_mem);
 412     }
 413
 414     monitor_printf(mon, "\n");
 415
 416     qapi_free_BalloonInfo(info);
 417 }
 418
 419 static void hmp_info_pci_device(Monitor *mon, const PciDeviceInfo *dev)
 420 {
 421     PciMemoryRegionList *region;
 422
 423     monitor_printf(mon, "  Bus %2" PRId64 ", ", dev->bus);
 424     monitor_printf(mon, "device %3" PRId64 ", function %" PRId64 ":\n",
 425                    dev->slot, dev->function);
 426     monitor_printf(mon, "    ");
 427
 428     if (dev->class_info.has_desc) {
 429         monitor_printf(mon, "%s", dev->class_info.desc);
 430     } else {
 431         monitor_printf(mon, "Class %04" PRId64, dev->class_info.class);
 432     }
 433
 434     monitor_printf(mon, ": PCI device %04" PRIx64 ":%04" PRIx64 "\n",
 435                    dev->id.vendor, dev->id.device);
 436
 437     if (dev->has_irq) {
 438         monitor_printf(mon, "      IRQ %" PRId64 ".\n", dev->irq);
 439     }
 440
 441     if (dev->has_pci_bridge) {
 442         monitor_printf(mon, "      BUS %" PRId64 ".\n",
 443                        dev->pci_bridge->bus.number);
 444         monitor_printf(mon, "      secondary bus %" PRId64 ".\n",
 445                        dev->pci_bridge->bus.secondary);
 446         monitor_printf(mon, "      subordinate bus %" PRId64 ".\n",
 447                        dev->pci_bridge->bus.subordinate);
 448
 449         monitor_printf(mon, "      IO range [0x%04"PRIx64", 0x%04"PRIx64"]\n",
 450                        dev->pci_bridge->bus.io_range->base,
 451                        dev->pci_bridge->bus.io_range->limit);
 452
 453         monitor_printf(mon,
 454                        "      memory range [0x%08"PRIx64", 0x%08"PRIx64"]\n",
 455                        dev->pci_bridge->bus.memory_range->base,
 456                        dev->pci_bridge->bus.memory_range->limit);
 457
 458         monitor_printf(mon, "      prefetchable memory range "
 459                        "[0x%08"PRIx64", 0x%08"PRIx64"]\n",
 460                        dev->pci_bridge->bus.prefetchable_range->base,
 461                        dev->pci_bridge->bus.prefetchable_range->limit);
 462     }
 463
 464     for (region = dev->regions; region; region = region->next) {
 465         uint64_t addr, size;
 466
 467         addr = region->value->address;
 468         size = region->value->size;
 469
 470         monitor_printf(mon, "      BAR%" PRId64 ": ", region->value->bar);
 471
 472         if (!strcmp(region->value->type, "io")) {
 473             monitor_printf(mon, "I/O at 0x%04" PRIx64
 474                                 " [0x%04" PRIx64 "].\n",
 475                            addr, addr + size - 1);
 476         } else {
 477             monitor_printf(mon, "%d bit%s memory at 0x%08" PRIx64
 478                                " [0x%08" PRIx64 "].\n",
 479                            region->value->mem_type_64 ? 64 : 32,
 480                            region->value->prefetch ? " prefetchable" : "",
 481                            addr, addr + size - 1);
 482         }
 483     }
 484
 485     monitor_printf(mon, "      id \"%s\"\n", dev->qdev_id);
 486
 487     if (dev->has_pci_bridge) {
 488         if (dev->pci_bridge->has_devices) {
 489             PciDeviceInfoList *cdev;
 490             for (cdev = dev->pci_bridge->devices; cdev; cdev = cdev->next) {
 491                 hmp_info_pci_device(mon, cdev->value);
 492             }
 493         }
 494     }
 495 }
 496
 497 void hmp_info_pci(Monitor *mon)
 498 {
 499     PciInfoList *info_list, *info;
 500     Error *err = NULL;
 501
 502     info_list = qmp_query_pci(&err);
 503     if (err) {
 504         monitor_printf(mon, "PCI devices not supported\n");
 505         error_free(err);
 506         return;
 507     }
 508
 509     for (info = info_list; info; info = info->next) {
 510         PciDeviceInfoList *dev;
 511
 512         for (dev = info->value->devices; dev; dev = dev->next) {
 513             hmp_info_pci_device(mon, dev->value);
 514         }
 515     }
 516
 517     qapi_free_PciInfoList(info_list);
 518 }
 519
 520 void hmp_info_block_jobs(Monitor *mon)
 521 {
 522     BlockJobInfoList *list;
 523     Error *err = NULL;
 524
 525     list = qmp_query_block_jobs(&err);
 526     assert(!err);
 527
 528     if (!list) {
 529         monitor_printf(mon, "No active jobs\n");
 530         return;
 531     }
 532
 533     while (list) {
 534         if (strcmp(list->value->type, "stream") == 0) {
 535             monitor_printf(mon, "Streaming device %s: Completed %" PRId64
 536                            " of %" PRId64 " bytes, speed limit %" PRId64
 537                            " bytes/s\n",
 538                            list->value->device,
 539                            list->value->offset,
 540                            list->value->len,
 541                            list->value->speed);
 542         } else {
 543             monitor_printf(mon, "Type %s, device %s: Completed %" PRId64
 544                            " of %" PRId64 " bytes, speed limit %" PRId64
 545                            " bytes/s\n",
 546                            list->value->type,
 547                            list->value->device,
 548                            list->value->offset,
 549                            list->value->len,
 550                            list->value->speed);
 551         }
 552         list = list->next;
 553     }
 554 }
 555
 556 void hmp_quit(Monitor *mon, const QDict *qdict)
 557 {
 558     monitor_suspend(mon);
 559     qmp_quit(NULL);
 560 }
 561
 562 void hmp_stop(Monitor *mon, const QDict *qdict)
 563 {
 564     qmp_stop(NULL);
 565 }
 566
 567 void hmp_system_reset(Monitor *mon, const QDict *qdict)
 568 {
 569     qmp_system_reset(NULL);
 570 }
 571
 572 void hmp_system_powerdown(Monitor *mon, const QDict *qdict)
 573 {
 574     qmp_system_powerdown(NULL);
 575 }
 576
 577 void hmp_cpu(Monitor *mon, const QDict *qdict)
 578 {
 579     int64_t cpu_index;
 580
 581     /* XXX: drop the monitor_set_cpu() usage when all HMP commands that
 582             use it are converted to the QAPI */
 583     cpu_index = qdict_get_int(qdict, "index");
 584     if (monitor_set_cpu(cpu_index) < 0) {
 585         monitor_printf(mon, "invalid CPU index\n");
 586     }
 587 }
 588
 589 void hmp_memsave(Monitor *mon, const QDict *qdict)
 590 {
 591     uint32_t size = qdict_get_int(qdict, "size");
 592     const char *filename = qdict_get_str(qdict, "filename");
 593     uint64_t addr = qdict_get_int(qdict, "val");
 594     Error *errp = NULL;
 595
 596     qmp_memsave(addr, size, filename, true, monitor_get_cpu_index(), &errp);
 597     hmp_handle_error(mon, &errp);
 598 }
 599
 600 void hmp_pmemsave(Monitor *mon, const QDict *qdict)
 601 {
 602     uint32_t size = qdict_get_int(qdict, "size");
 603     const char *filename = qdict_get_str(qdict, "filename");
 604     uint64_t addr = qdict_get_int(qdict, "val");
 605     Error *errp = NULL;
 606
 607     qmp_pmemsave(addr, size, filename, &errp);
 608     hmp_handle_error(mon, &errp);
 609 }
 610
 611 static void hmp_cont_cb(void *opaque, int err)
 612 {
 613     Monitor *mon = opaque;
 614
 615     if (!err) {
 616         hmp_cont(mon, NULL);
 617     }
 618 }
 619
 620 void hmp_cont(Monitor *mon, const QDict *qdict)
 621 {
 622     Error *errp = NULL;
 623
 624     qmp_cont(&errp);
 625     if (error_is_set(&errp)) {
 626         if (error_is_type(errp, QERR_DEVICE_ENCRYPTED)) {
 627             const char *device;
 628
 629             /* The device is encrypted. Ask the user for the password
 630                and retry */
 631
 632             device = error_get_field(errp, "device");
 633             assert(device != NULL);
 634
 635             monitor_read_block_device_key(mon, device, hmp_cont_cb, mon);
 636             error_free(errp);
 637             return;
 638         }
 639         hmp_handle_error(mon, &errp);
 640     }
 641 }
 642
 643 void hmp_system_wakeup(Monitor *mon, const QDict *qdict)
 644 {
 645     qmp_system_wakeup(NULL);
 646 }
 647
 648 void hmp_inject_nmi(Monitor *mon, const QDict *qdict)
 649 {
 650     Error *errp = NULL;
 651
 652     qmp_inject_nmi(&errp);
 653     hmp_handle_error(mon, &errp);
 654 }
 655
 656 void hmp_set_link(Monitor *mon, const QDict *qdict)
 657 {
 658     const char *name = qdict_get_str(qdict, "name");
 659     int up = qdict_get_bool(qdict, "up");
 660     Error *errp = NULL;
 661
 662     qmp_set_link(name, up, &errp);
 663     hmp_handle_error(mon, &errp);
 664 }
 665
 666 void hmp_block_passwd(Monitor *mon, const QDict *qdict)
 667 {
 668     const char *device = qdict_get_str(qdict, "device");
 669     const char *password = qdict_get_str(qdict, "password");
 670     Error *errp = NULL;
 671
 672     qmp_block_passwd(device, password, &errp);
 673     hmp_handle_error(mon, &errp);
 674 }
 675
 676 void hmp_balloon(Monitor *mon, const QDict *qdict)
 677 {
 678     int64_t value = qdict_get_int(qdict, "value");
 679     Error *errp = NULL;
 680
 681     qmp_balloon(value, &errp);
 682     if (error_is_set(&errp)) {
 683         monitor_printf(mon, "balloon: %s\n", error_get_pretty(errp));
 684         error_free(errp);
 685     }
 686 }
 687
 688 void hmp_block_resize(Monitor *mon, const QDict *qdict)
 689 {
 690     const char *device = qdict_get_str(qdict, "device");
 691     int64_t size = qdict_get_int(qdict, "size");
 692     Error *errp = NULL;
 693
 694     qmp_block_resize(device, size, &errp);
 695     hmp_handle_error(mon, &errp);
 696 }
 697
 698 void hmp_snapshot_blkdev(Monitor *mon, const QDict *qdict)
 699 {
 700     const char *device = qdict_get_str(qdict, "device");
 701     const char *filename = qdict_get_try_str(qdict, "snapshot-file");
 702     const char *format = qdict_get_try_str(qdict, "format");
 703     int reuse = qdict_get_try_bool(qdict, "reuse", 0);
 704     enum NewImageMode mode;
 705     Error *errp = NULL;
 706
 707     if (!filename) {
 708         /* In the future, if 'snapshot-file' is not specified, the snapshot
 709            will be taken internally. Today it's actually required. */
 710         error_set(&errp, QERR_MISSING_PARAMETER, "snapshot-file");
 711         hmp_handle_error(mon, &errp);
 712         return;
 713     }
 714
 715     mode = reuse ? NEW_IMAGE_MODE_EXISTING : NEW_IMAGE_MODE_ABSOLUTE_PATHS;
 716     qmp_blockdev_snapshot_sync(device, filename, !!format, format,
 717                                true, mode, &errp);
 718     hmp_handle_error(mon, &errp);
 719 }
 720
 721 void hmp_migrate_cancel(Monitor *mon, const QDict *qdict)
 722 {
 723     qmp_migrate_cancel(NULL);
 724 }
 725
 726 void hmp_migrate_set_downtime(Monitor *mon, const QDict *qdict)
 727 {
 728     double value = qdict_get_double(qdict, "value");
 729     qmp_migrate_set_downtime(value, NULL);
 730 }
 731
 732 void hmp_migrate_set_speed(Monitor *mon, const QDict *qdict)
 733 {
 734     int64_t value = qdict_get_int(qdict, "value");
 735     qmp_migrate_set_speed(value, NULL);
 736 }
 737
 738 void hmp_set_password(Monitor *mon, const QDict *qdict)
 739 {
 740     const char *protocol  = qdict_get_str(qdict, "protocol");
 741     const char *password  = qdict_get_str(qdict, "password");
 742     const char *connected = qdict_get_try_str(qdict, "connected");
 743     Error *err = NULL;
 744
 745     qmp_set_password(protocol, password, !!connected, connected, &err);
 746     hmp_handle_error(mon, &err);
 747 }
 748
 749 void hmp_expire_password(Monitor *mon, const QDict *qdict)
 750 {
 751     const char *protocol  = qdict_get_str(qdict, "protocol");
 752     const char *whenstr = qdict_get_str(qdict, "time");
 753     Error *err = NULL;
 754
 755     qmp_expire_password(protocol, whenstr, &err);
 756     hmp_handle_error(mon, &err);
 757 }
 758
 759 void hmp_eject(Monitor *mon, const QDict *qdict)
 760 {
 761     int force = qdict_get_try_bool(qdict, "force", 0);
 762     const char *device = qdict_get_str(qdict, "device");
 763     Error *err = NULL;
 764
 765     qmp_eject(device, true, force, &err);
 766     hmp_handle_error(mon, &err);
 767 }
 768
 769 static void hmp_change_read_arg(Monitor *mon, const char *password,
 770                                 void *opaque)
 771 {
 772     qmp_change_vnc_password(password, NULL);
 773     monitor_read_command(mon, 1);
 774 }
 775
 776 static void cb_hmp_change_bdrv_pwd(Monitor *mon, const char *password,
 777                                    void *opaque)
 778 {
 779     Error *encryption_err = opaque;
 780     Error *err = NULL;
 781     const char *device;
 782
 783     device = error_get_field(encryption_err, "device");
 784
 785     qmp_block_passwd(device, password, &err);
 786     hmp_handle_error(mon, &err);
 787     error_free(encryption_err);
 788
 789     monitor_read_command(mon, 1);
 790 }
 791
 792 void hmp_change(Monitor *mon, const QDict *qdict)
 793 {
 794     const char *device = qdict_get_str(qdict, "device");
 795     const char *target = qdict_get_str(qdict, "target");
 796     const char *arg = qdict_get_try_str(qdict, "arg");
 797     Error *err = NULL;
 798
 799     if (strcmp(device, "vnc") == 0 &&
 800             (strcmp(target, "passwd") == 0 ||
 801              strcmp(target, "password") == 0)) {
 802         if (!arg) {
 803             monitor_read_password(mon, hmp_change_read_arg, NULL);
 804             return;
 805         }
 806     }
 807
 808     qmp_change(device, target, !!arg, arg, &err);
 809     if (error_is_type(err, QERR_DEVICE_ENCRYPTED)) {
 810         monitor_printf(mon, "%s (%s) is encrypted.\n",
 811                        error_get_field(err, "device"),
 812                        error_get_field(err, "filename"));
 813         if (!monitor_get_rs(mon)) {
 814             monitor_printf(mon,
 815                     "terminal does not support password prompting\n");
 816             error_free(err);
 817             return;
 818         }
 819         readline_start(monitor_get_rs(mon), "Password: ", 1,
 820                        cb_hmp_change_bdrv_pwd, err);
 821         return;
 822     }
 823     hmp_handle_error(mon, &err);
 824 }
 825
 826 void hmp_block_set_io_throttle(Monitor *mon, const QDict *qdict)
 827 {
 828     Error *err = NULL;
 829
 830     qmp_block_set_io_throttle(qdict_get_str(qdict, "device"),
 831                               qdict_get_int(qdict, "bps"),
 832                               qdict_get_int(qdict, "bps_rd"),
 833                               qdict_get_int(qdict, "bps_wr"),
 834                               qdict_get_int(qdict, "iops"),
 835                               qdict_get_int(qdict, "iops_rd"),
 836                               qdict_get_int(qdict, "iops_wr"), &err);
 837     hmp_handle_error(mon, &err);
 838 }
 839
 840 void hmp_block_stream(Monitor *mon, const QDict *qdict)
 841 {
 842     Error *error = NULL;
 843     const char *device = qdict_get_str(qdict, "device");
 844     const char *base = qdict_get_try_str(qdict, "base");
 845     int64_t speed = qdict_get_try_int(qdict, "speed", 0);
 846
 847     qmp_block_stream(device, base != NULL, base,
 848                      qdict_haskey(qdict, "speed"), speed, &error);
 849
 850     hmp_handle_error(mon, &error);
 851 }
 852
 853 void hmp_block_job_set_speed(Monitor *mon, const QDict *qdict)
 854 {
 855     Error *error = NULL;
 856     const char *device = qdict_get_str(qdict, "device");
 857     int64_t value = qdict_get_int(qdict, "speed");
 858
 859     qmp_block_job_set_speed(device, value, &error);
 860
 861     hmp_handle_error(mon, &error);
 862 }
 863
 864 void hmp_block_job_cancel(Monitor *mon, const QDict *qdict)
 865 {
 866     Error *error = NULL;
 867     const char *device = qdict_get_str(qdict, "device");
 868
 869     qmp_block_job_cancel(device, &error);
 870
 871     hmp_handle_error(mon, &error);
 872 }
 873
 874 typedef struct MigrationStatus
 875 {
 876     QEMUTimer *timer;
 877     Monitor *mon;
 878     bool is_block_migration;
 879 } MigrationStatus;
 880
 881 static void hmp_migrate_status_cb(void *opaque)
 882 {
 883     MigrationStatus *status = opaque;
 884     MigrationInfo *info;
 885
 886     info = qmp_query_migrate(NULL);
 887     if (!info->has_status || strcmp(info->status, "active") == 0) {
 888         if (info->has_disk) {
 889             int progress;
 890
 891             if (info->disk->remaining) {
 892                 progress = info->disk->transferred * 100 / info->disk->total;
 893             } else {
 894                 progress = 100;
 895             }
 896
 897             monitor_printf(status->mon, "Completed %d %%\r", progress);
 898             monitor_flush(status->mon);
 899         }
 900
 901         qemu_mod_timer(status->timer, qemu_get_clock_ms(rt_clock) + 1000);
 902     } else {
 903         if (status->is_block_migration) {
 904             monitor_printf(status->mon, "\n");
 905         }
 906         monitor_resume(status->mon);
 907         qemu_del_timer(status->timer);
 908         g_free(status);
 909     }
 910
 911     qapi_free_MigrationInfo(info);
 912 }
 913
 914 void hmp_migrate(Monitor *mon, const QDict *qdict)
 915 {
 916     int detach = qdict_get_try_bool(qdict, "detach", 0);
 917     int blk = qdict_get_try_bool(qdict, "blk", 0);
 918     int inc = qdict_get_try_bool(qdict, "inc", 0);
 919     const char *uri = qdict_get_str(qdict, "uri");
 920     Error *err = NULL;
 921
 922     qmp_migrate(uri, !!blk, blk, !!inc, inc, false, false, &err);
 923     if (err) {
 924         monitor_printf(mon, "migrate: %s\n", error_get_pretty(err));
 925         error_free(err);
 926         return;
 927     }
 928
 929     if (!detach) {
 930         MigrationStatus *status;
 931
 932         if (monitor_suspend(mon) < 0) {
 933             monitor_printf(mon, "terminal does not allow synchronous "
 934                            "migration, continuing detached\n");
 935             return;
 936         }
 937
 938         status = g_malloc0(sizeof(*status));
 939         status->mon = mon;
 940         status->is_block_migration = blk || inc;
 941         status->timer = qemu_new_timer_ms(rt_clock, hmp_migrate_status_cb,
 942                                           status);
 943         qemu_mod_timer(status->timer, qemu_get_clock_ms(rt_clock));
 944     }
 945 }
 946
 947 void hmp_device_del(Monitor *mon, const QDict *qdict)
 948 {
 949     const char *id = qdict_get_str(qdict, "id");
 950     Error *err = NULL;
 951
 952     qmp_device_del(id, &err);
 953     hmp_handle_error(mon, &err);
 954 }
 955
 956 void hmp_dump_guest_memory(Monitor *mon, const QDict *qdict)
 957 {
 958     Error *errp = NULL;
 959     int paging = qdict_get_try_bool(qdict, "paging", 0);
 960     const char *file = qdict_get_str(qdict, "protocol");
 961     bool has_begin = qdict_haskey(qdict, "begin");
 962     bool has_length = qdict_haskey(qdict, "length");
 963     int64_t begin = 0;
 964     int64_t length = 0;
 965
 966     if (has_begin) {
 967         begin = qdict_get_int(qdict, "begin");
 968     }
 969     if (has_length) {
 970         length = qdict_get_int(qdict, "length");
 971     }
 972
 973     qmp_dump_guest_memory(paging, file, has_begin, begin, has_length, length,
 974                           &errp);
 975     hmp_handle_error(mon, &errp);
 976 }
 977
 978 void hmp_netdev_add(Monitor *mon, const QDict *qdict)
 979 {
 980     Error *err = NULL;
 981     QemuOpts *opts;
 982
 983     opts = qemu_opts_from_qdict(qemu_find_opts("netdev"), qdict, &err);
 984     if (error_is_set(&err)) {
 985         goto out;
 986     }
 987
 988     netdev_add(opts, &err);
 989     if (error_is_set(&err)) {
 990         qemu_opts_del(opts);
 991     }
 992
 993 out:
 994     hmp_handle_error(mon, &err);
 995 }
 996
 997 void hmp_netdev_del(Monitor *mon, const QDict *qdict)
 998 {
 999     const char *id = qdict_get_str(qdict, "id");
1000     Error *err = NULL;
1001
1002     qmp_netdev_del(id, &err);
1003     hmp_handle_error(mon, &err);
1004 }