1 /* 2 * HMP commands related to migration 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 "qemu/osdep.h" 17 #include "block/qapi.h" 18 #include "migration/snapshot.h" 19 #include "monitor/hmp.h" 20 #include "monitor/monitor.h" 21 #include "qapi/error.h" 22 #include "qapi/qapi-commands-migration.h" 23 #include "qapi/qapi-visit-migration.h" 24 #include "qobject/qdict.h" 25 #include "qapi/string-input-visitor.h" 26 #include "qapi/string-output-visitor.h" 27 #include "qemu/cutils.h" 28 #include "qemu/error-report.h" 29 #include "qemu/sockets.h" 30 #include "system/runstate.h" 31 #include "ui/qemu-spice.h" 32 #include "system/system.h" 33 #include "options.h" 34 #include "migration.h" 35 36 static void migration_global_dump(Monitor *mon) 37 { 38 MigrationState *ms = migrate_get_current(); 39 40 monitor_printf(mon, "Globals:\n"); 41 monitor_printf(mon, " store-global-state: %s\n", 42 ms->store_global_state ? "on" : "off"); 43 monitor_printf(mon, " only-migratable: %s\n", 44 only_migratable ? "on" : "off"); 45 monitor_printf(mon, " send-configuration: %s\n", 46 ms->send_configuration ? "on" : "off"); 47 monitor_printf(mon, " send-section-footer: %s\n", 48 ms->send_section_footer ? "on" : "off"); 49 monitor_printf(mon, " send-switchover-start: %s\n", 50 ms->send_switchover_start ? "on" : "off"); 51 monitor_printf(mon, " clear-bitmap-shift: %u\n", 52 ms->clear_bitmap_shift); 53 } 54 55 void hmp_info_migrate(Monitor *mon, const QDict *qdict) 56 { 57 bool show_all = qdict_get_try_bool(qdict, "all", false); 58 MigrationInfo *info; 59 60 info = qmp_query_migrate(NULL); 61 62 if (info->blocked_reasons) { 63 strList *reasons = info->blocked_reasons; 64 monitor_printf(mon, "Outgoing migration blocked:\n"); 65 while (reasons) { 66 monitor_printf(mon, " %s\n", reasons->value); 67 reasons = reasons->next; 68 } 69 } 70 71 if (info->has_status) { 72 monitor_printf(mon, "Status: %s", 73 MigrationStatus_str(info->status)); 74 if (info->status == MIGRATION_STATUS_FAILED && info->error_desc) { 75 monitor_printf(mon, " (%s)\n", info->error_desc); 76 } else { 77 monitor_printf(mon, "\n"); 78 } 79 80 if (info->total_time) { 81 monitor_printf(mon, "Time (ms): total=%" PRIu64, 82 info->total_time); 83 if (info->has_setup_time) { 84 monitor_printf(mon, ", setup=%" PRIu64, 85 info->setup_time); 86 } 87 if (info->has_expected_downtime) { 88 monitor_printf(mon, ", exp_down=%" PRIu64, 89 info->expected_downtime); 90 } 91 if (info->has_downtime) { 92 monitor_printf(mon, ", down=%" PRIu64, 93 info->downtime); 94 } 95 monitor_printf(mon, "\n"); 96 } 97 } 98 99 if (info->has_socket_address) { 100 SocketAddressList *addr; 101 102 monitor_printf(mon, "Sockets: [\n"); 103 104 for (addr = info->socket_address; addr; addr = addr->next) { 105 char *s = socket_uri(addr->value); 106 monitor_printf(mon, "\t%s\n", s); 107 g_free(s); 108 } 109 monitor_printf(mon, "]\n"); 110 } 111 112 if (info->ram) { 113 monitor_printf(mon, "RAM info:\n"); 114 monitor_printf(mon, " Throughput (Mbps): %0.2f\n", 115 info->ram->mbps); 116 monitor_printf(mon, " Sizes (KiB): pagesize=%" PRIu64 117 ", total=%" PRIu64 ",\n", 118 info->ram->page_size >> 10, 119 info->ram->total >> 10); 120 monitor_printf(mon, " transferred=%" PRIu64 121 ", remain=%" PRIu64 ",\n", 122 info->ram->transferred >> 10, 123 info->ram->remaining >> 10); 124 monitor_printf(mon, " precopy=%" PRIu64 125 ", multifd=%" PRIu64 126 ", postcopy=%" PRIu64, 127 info->ram->precopy_bytes >> 10, 128 info->ram->multifd_bytes >> 10, 129 info->ram->postcopy_bytes >> 10); 130 131 if (info->vfio) { 132 monitor_printf(mon, ", vfio=%" PRIu64, 133 info->vfio->transferred >> 10); 134 } 135 monitor_printf(mon, "\n"); 136 137 monitor_printf(mon, " Pages: normal=%" PRIu64 ", zero=%" PRIu64 138 ", rate_per_sec=%" PRIu64 "\n", 139 info->ram->normal, 140 info->ram->duplicate, 141 info->ram->pages_per_second); 142 monitor_printf(mon, " Others: dirty_syncs=%" PRIu64, 143 info->ram->dirty_sync_count); 144 145 if (info->ram->dirty_pages_rate) { 146 monitor_printf(mon, ", dirty_pages_rate=%" PRIu64, 147 info->ram->dirty_pages_rate); 148 } 149 if (info->ram->postcopy_requests) { 150 monitor_printf(mon, ", postcopy_req=%" PRIu64, 151 info->ram->postcopy_requests); 152 } 153 if (info->ram->downtime_bytes) { 154 monitor_printf(mon, ", downtime_ram=%" PRIu64, 155 info->ram->downtime_bytes); 156 } 157 if (info->ram->dirty_sync_missed_zero_copy) { 158 monitor_printf(mon, ", zerocopy_fallbacks=%" PRIu64, 159 info->ram->dirty_sync_missed_zero_copy); 160 } 161 monitor_printf(mon, "\n"); 162 } 163 164 if (!show_all) { 165 goto out; 166 } 167 168 migration_global_dump(mon); 169 170 if (info->xbzrle_cache) { 171 monitor_printf(mon, "XBZRLE: size=%" PRIu64 172 ", transferred=%" PRIu64 173 ", pages=%" PRIu64 174 ", miss=%" PRIu64 "\n" 175 " miss_rate=%0.2f" 176 ", encode_rate=%0.2f" 177 ", overflow=%" PRIu64 "\n", 178 info->xbzrle_cache->cache_size, 179 info->xbzrle_cache->bytes, 180 info->xbzrle_cache->pages, 181 info->xbzrle_cache->cache_miss, 182 info->xbzrle_cache->cache_miss_rate, 183 info->xbzrle_cache->encoding_rate, 184 info->xbzrle_cache->overflow); 185 } 186 187 if (info->has_cpu_throttle_percentage) { 188 monitor_printf(mon, "CPU Throttle (%%): %" PRIu64 "\n", 189 info->cpu_throttle_percentage); 190 } 191 192 if (info->has_dirty_limit_throttle_time_per_round) { 193 monitor_printf(mon, "Dirty-limit Throttle (us): %" PRIu64 "\n", 194 info->dirty_limit_throttle_time_per_round); 195 } 196 197 if (info->has_dirty_limit_ring_full_time) { 198 monitor_printf(mon, "Dirty-limit Ring Full (us): %" PRIu64 "\n", 199 info->dirty_limit_ring_full_time); 200 } 201 202 if (info->has_postcopy_blocktime) { 203 monitor_printf(mon, "Postcopy Blocktime (ms): %" PRIu32 "\n", 204 info->postcopy_blocktime); 205 } 206 207 if (info->has_postcopy_vcpu_blocktime) { 208 Visitor *v; 209 char *str; 210 v = string_output_visitor_new(false, &str); 211 visit_type_uint32List(v, NULL, &info->postcopy_vcpu_blocktime, 212 &error_abort); 213 visit_complete(v, &str); 214 monitor_printf(mon, "Postcopy vCPU Blocktime: %s\n", str); 215 g_free(str); 216 visit_free(v); 217 } 218 219 out: 220 qapi_free_MigrationInfo(info); 221 } 222 223 void hmp_info_migrate_capabilities(Monitor *mon, const QDict *qdict) 224 { 225 MigrationCapabilityStatusList *caps, *cap; 226 227 caps = qmp_query_migrate_capabilities(NULL); 228 229 if (caps) { 230 for (cap = caps; cap; cap = cap->next) { 231 monitor_printf(mon, "%s: %s\n", 232 MigrationCapability_str(cap->value->capability), 233 cap->value->state ? "on" : "off"); 234 } 235 } 236 237 qapi_free_MigrationCapabilityStatusList(caps); 238 } 239 240 void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict) 241 { 242 MigrationParameters *params; 243 244 params = qmp_query_migrate_parameters(NULL); 245 246 if (params) { 247 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 248 MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_INITIAL), 249 params->announce_initial); 250 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 251 MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_MAX), 252 params->announce_max); 253 monitor_printf(mon, "%s: %" PRIu64 "\n", 254 MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_ROUNDS), 255 params->announce_rounds); 256 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 257 MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_STEP), 258 params->announce_step); 259 assert(params->has_throttle_trigger_threshold); 260 monitor_printf(mon, "%s: %u\n", 261 MigrationParameter_str(MIGRATION_PARAMETER_THROTTLE_TRIGGER_THRESHOLD), 262 params->throttle_trigger_threshold); 263 assert(params->has_cpu_throttle_initial); 264 monitor_printf(mon, "%s: %u\n", 265 MigrationParameter_str(MIGRATION_PARAMETER_CPU_THROTTLE_INITIAL), 266 params->cpu_throttle_initial); 267 assert(params->has_cpu_throttle_increment); 268 monitor_printf(mon, "%s: %u\n", 269 MigrationParameter_str(MIGRATION_PARAMETER_CPU_THROTTLE_INCREMENT), 270 params->cpu_throttle_increment); 271 assert(params->has_cpu_throttle_tailslow); 272 monitor_printf(mon, "%s: %s\n", 273 MigrationParameter_str(MIGRATION_PARAMETER_CPU_THROTTLE_TAILSLOW), 274 params->cpu_throttle_tailslow ? "on" : "off"); 275 assert(params->has_max_cpu_throttle); 276 monitor_printf(mon, "%s: %u\n", 277 MigrationParameter_str(MIGRATION_PARAMETER_MAX_CPU_THROTTLE), 278 params->max_cpu_throttle); 279 assert(params->tls_creds); 280 monitor_printf(mon, "%s: '%s'\n", 281 MigrationParameter_str(MIGRATION_PARAMETER_TLS_CREDS), 282 params->tls_creds); 283 assert(params->tls_hostname); 284 monitor_printf(mon, "%s: '%s'\n", 285 MigrationParameter_str(MIGRATION_PARAMETER_TLS_HOSTNAME), 286 params->tls_hostname); 287 assert(params->has_max_bandwidth); 288 monitor_printf(mon, "%s: %" PRIu64 " bytes/second\n", 289 MigrationParameter_str(MIGRATION_PARAMETER_MAX_BANDWIDTH), 290 params->max_bandwidth); 291 assert(params->has_avail_switchover_bandwidth); 292 monitor_printf(mon, "%s: %" PRIu64 " bytes/second\n", 293 MigrationParameter_str(MIGRATION_PARAMETER_AVAIL_SWITCHOVER_BANDWIDTH), 294 params->avail_switchover_bandwidth); 295 assert(params->has_downtime_limit); 296 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 297 MigrationParameter_str(MIGRATION_PARAMETER_DOWNTIME_LIMIT), 298 params->downtime_limit); 299 assert(params->has_x_checkpoint_delay); 300 monitor_printf(mon, "%s: %u ms\n", 301 MigrationParameter_str(MIGRATION_PARAMETER_X_CHECKPOINT_DELAY), 302 params->x_checkpoint_delay); 303 monitor_printf(mon, "%s: %u\n", 304 MigrationParameter_str(MIGRATION_PARAMETER_MULTIFD_CHANNELS), 305 params->multifd_channels); 306 monitor_printf(mon, "%s: %s\n", 307 MigrationParameter_str(MIGRATION_PARAMETER_MULTIFD_COMPRESSION), 308 MultiFDCompression_str(params->multifd_compression)); 309 assert(params->has_zero_page_detection); 310 monitor_printf(mon, "%s: %s\n", 311 MigrationParameter_str(MIGRATION_PARAMETER_ZERO_PAGE_DETECTION), 312 qapi_enum_lookup(&ZeroPageDetection_lookup, 313 params->zero_page_detection)); 314 monitor_printf(mon, "%s: %" PRIu64 " bytes\n", 315 MigrationParameter_str(MIGRATION_PARAMETER_XBZRLE_CACHE_SIZE), 316 params->xbzrle_cache_size); 317 monitor_printf(mon, "%s: %" PRIu64 "\n", 318 MigrationParameter_str(MIGRATION_PARAMETER_MAX_POSTCOPY_BANDWIDTH), 319 params->max_postcopy_bandwidth); 320 monitor_printf(mon, "%s: '%s'\n", 321 MigrationParameter_str(MIGRATION_PARAMETER_TLS_AUTHZ), 322 params->tls_authz); 323 324 if (params->has_block_bitmap_mapping) { 325 const BitmapMigrationNodeAliasList *bmnal; 326 327 monitor_printf(mon, "%s:\n", 328 MigrationParameter_str( 329 MIGRATION_PARAMETER_BLOCK_BITMAP_MAPPING)); 330 331 for (bmnal = params->block_bitmap_mapping; 332 bmnal; 333 bmnal = bmnal->next) 334 { 335 const BitmapMigrationNodeAlias *bmna = bmnal->value; 336 const BitmapMigrationBitmapAliasList *bmbal; 337 338 monitor_printf(mon, " '%s' -> '%s'\n", 339 bmna->node_name, bmna->alias); 340 341 for (bmbal = bmna->bitmaps; bmbal; bmbal = bmbal->next) { 342 const BitmapMigrationBitmapAlias *bmba = bmbal->value; 343 344 monitor_printf(mon, " '%s' -> '%s'\n", 345 bmba->name, bmba->alias); 346 } 347 } 348 } 349 350 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 351 MigrationParameter_str(MIGRATION_PARAMETER_X_VCPU_DIRTY_LIMIT_PERIOD), 352 params->x_vcpu_dirty_limit_period); 353 354 monitor_printf(mon, "%s: %" PRIu64 " MB/s\n", 355 MigrationParameter_str(MIGRATION_PARAMETER_VCPU_DIRTY_LIMIT), 356 params->vcpu_dirty_limit); 357 358 assert(params->has_mode); 359 monitor_printf(mon, "%s: %s\n", 360 MigrationParameter_str(MIGRATION_PARAMETER_MODE), 361 qapi_enum_lookup(&MigMode_lookup, params->mode)); 362 363 if (params->has_direct_io) { 364 monitor_printf(mon, "%s: %s\n", 365 MigrationParameter_str( 366 MIGRATION_PARAMETER_DIRECT_IO), 367 params->direct_io ? "on" : "off"); 368 } 369 } 370 371 qapi_free_MigrationParameters(params); 372 } 373 374 void hmp_loadvm(Monitor *mon, const QDict *qdict) 375 { 376 RunState saved_state = runstate_get(); 377 378 const char *name = qdict_get_str(qdict, "name"); 379 Error *err = NULL; 380 381 vm_stop(RUN_STATE_RESTORE_VM); 382 383 if (load_snapshot(name, NULL, false, NULL, &err)) { 384 load_snapshot_resume(saved_state); 385 } 386 387 hmp_handle_error(mon, err); 388 } 389 390 void hmp_savevm(Monitor *mon, const QDict *qdict) 391 { 392 Error *err = NULL; 393 394 save_snapshot(qdict_get_try_str(qdict, "name"), 395 true, NULL, false, NULL, &err); 396 hmp_handle_error(mon, err); 397 } 398 399 void hmp_delvm(Monitor *mon, const QDict *qdict) 400 { 401 Error *err = NULL; 402 const char *name = qdict_get_str(qdict, "name"); 403 404 delete_snapshot(name, false, NULL, &err); 405 hmp_handle_error(mon, err); 406 } 407 408 void hmp_migrate_cancel(Monitor *mon, const QDict *qdict) 409 { 410 qmp_migrate_cancel(NULL); 411 } 412 413 void hmp_migrate_continue(Monitor *mon, const QDict *qdict) 414 { 415 Error *err = NULL; 416 const char *state = qdict_get_str(qdict, "state"); 417 int val = qapi_enum_parse(&MigrationStatus_lookup, state, -1, &err); 418 419 if (val >= 0) { 420 qmp_migrate_continue(val, &err); 421 } 422 423 hmp_handle_error(mon, err); 424 } 425 426 void hmp_migrate_incoming(Monitor *mon, const QDict *qdict) 427 { 428 Error *err = NULL; 429 const char *uri = qdict_get_str(qdict, "uri"); 430 MigrationChannelList *caps = NULL; 431 g_autoptr(MigrationChannel) channel = NULL; 432 433 if (!migrate_uri_parse(uri, &channel, &err)) { 434 goto end; 435 } 436 QAPI_LIST_PREPEND(caps, g_steal_pointer(&channel)); 437 438 qmp_migrate_incoming(NULL, true, caps, true, false, &err); 439 qapi_free_MigrationChannelList(caps); 440 441 end: 442 hmp_handle_error(mon, err); 443 } 444 445 void hmp_migrate_recover(Monitor *mon, const QDict *qdict) 446 { 447 Error *err = NULL; 448 const char *uri = qdict_get_str(qdict, "uri"); 449 450 qmp_migrate_recover(uri, &err); 451 452 hmp_handle_error(mon, err); 453 } 454 455 void hmp_migrate_pause(Monitor *mon, const QDict *qdict) 456 { 457 Error *err = NULL; 458 459 qmp_migrate_pause(&err); 460 461 hmp_handle_error(mon, err); 462 } 463 464 465 void hmp_migrate_set_capability(Monitor *mon, const QDict *qdict) 466 { 467 const char *cap = qdict_get_str(qdict, "capability"); 468 bool state = qdict_get_bool(qdict, "state"); 469 Error *err = NULL; 470 MigrationCapabilityStatusList *caps = NULL; 471 MigrationCapabilityStatus *value; 472 int val; 473 474 val = qapi_enum_parse(&MigrationCapability_lookup, cap, -1, &err); 475 if (val < 0) { 476 goto end; 477 } 478 479 value = g_malloc0(sizeof(*value)); 480 value->capability = val; 481 value->state = state; 482 QAPI_LIST_PREPEND(caps, value); 483 qmp_migrate_set_capabilities(caps, &err); 484 qapi_free_MigrationCapabilityStatusList(caps); 485 486 end: 487 hmp_handle_error(mon, err); 488 } 489 490 void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict) 491 { 492 const char *param = qdict_get_str(qdict, "parameter"); 493 const char *valuestr = qdict_get_str(qdict, "value"); 494 Visitor *v = string_input_visitor_new(valuestr); 495 MigrateSetParameters *p = g_new0(MigrateSetParameters, 1); 496 uint64_t valuebw = 0; 497 uint64_t cache_size; 498 Error *err = NULL; 499 int val, ret; 500 501 val = qapi_enum_parse(&MigrationParameter_lookup, param, -1, &err); 502 if (val < 0) { 503 goto cleanup; 504 } 505 506 switch (val) { 507 case MIGRATION_PARAMETER_THROTTLE_TRIGGER_THRESHOLD: 508 p->has_throttle_trigger_threshold = true; 509 visit_type_uint8(v, param, &p->throttle_trigger_threshold, &err); 510 break; 511 case MIGRATION_PARAMETER_CPU_THROTTLE_INITIAL: 512 p->has_cpu_throttle_initial = true; 513 visit_type_uint8(v, param, &p->cpu_throttle_initial, &err); 514 break; 515 case MIGRATION_PARAMETER_CPU_THROTTLE_INCREMENT: 516 p->has_cpu_throttle_increment = true; 517 visit_type_uint8(v, param, &p->cpu_throttle_increment, &err); 518 break; 519 case MIGRATION_PARAMETER_CPU_THROTTLE_TAILSLOW: 520 p->has_cpu_throttle_tailslow = true; 521 visit_type_bool(v, param, &p->cpu_throttle_tailslow, &err); 522 break; 523 case MIGRATION_PARAMETER_MAX_CPU_THROTTLE: 524 p->has_max_cpu_throttle = true; 525 visit_type_uint8(v, param, &p->max_cpu_throttle, &err); 526 break; 527 case MIGRATION_PARAMETER_TLS_CREDS: 528 p->tls_creds = g_new0(StrOrNull, 1); 529 p->tls_creds->type = QTYPE_QSTRING; 530 visit_type_str(v, param, &p->tls_creds->u.s, &err); 531 break; 532 case MIGRATION_PARAMETER_TLS_HOSTNAME: 533 p->tls_hostname = g_new0(StrOrNull, 1); 534 p->tls_hostname->type = QTYPE_QSTRING; 535 visit_type_str(v, param, &p->tls_hostname->u.s, &err); 536 break; 537 case MIGRATION_PARAMETER_TLS_AUTHZ: 538 p->tls_authz = g_new0(StrOrNull, 1); 539 p->tls_authz->type = QTYPE_QSTRING; 540 visit_type_str(v, param, &p->tls_authz->u.s, &err); 541 break; 542 case MIGRATION_PARAMETER_MAX_BANDWIDTH: 543 p->has_max_bandwidth = true; 544 /* 545 * Can't use visit_type_size() here, because it 546 * defaults to Bytes rather than Mebibytes. 547 */ 548 ret = qemu_strtosz_MiB(valuestr, NULL, &valuebw); 549 if (ret < 0 || valuebw > INT64_MAX 550 || (size_t)valuebw != valuebw) { 551 error_setg(&err, "Invalid size %s", valuestr); 552 break; 553 } 554 p->max_bandwidth = valuebw; 555 break; 556 case MIGRATION_PARAMETER_AVAIL_SWITCHOVER_BANDWIDTH: 557 p->has_avail_switchover_bandwidth = true; 558 ret = qemu_strtosz_MiB(valuestr, NULL, &valuebw); 559 if (ret < 0 || valuebw > INT64_MAX 560 || (size_t)valuebw != valuebw) { 561 error_setg(&err, "Invalid size %s", valuestr); 562 break; 563 } 564 p->avail_switchover_bandwidth = valuebw; 565 break; 566 case MIGRATION_PARAMETER_DOWNTIME_LIMIT: 567 p->has_downtime_limit = true; 568 visit_type_size(v, param, &p->downtime_limit, &err); 569 break; 570 case MIGRATION_PARAMETER_X_CHECKPOINT_DELAY: 571 p->has_x_checkpoint_delay = true; 572 visit_type_uint32(v, param, &p->x_checkpoint_delay, &err); 573 break; 574 case MIGRATION_PARAMETER_MULTIFD_CHANNELS: 575 p->has_multifd_channels = true; 576 visit_type_uint8(v, param, &p->multifd_channels, &err); 577 break; 578 case MIGRATION_PARAMETER_MULTIFD_COMPRESSION: 579 p->has_multifd_compression = true; 580 visit_type_MultiFDCompression(v, param, &p->multifd_compression, 581 &err); 582 break; 583 case MIGRATION_PARAMETER_MULTIFD_ZLIB_LEVEL: 584 p->has_multifd_zlib_level = true; 585 visit_type_uint8(v, param, &p->multifd_zlib_level, &err); 586 break; 587 case MIGRATION_PARAMETER_MULTIFD_QATZIP_LEVEL: 588 p->has_multifd_qatzip_level = true; 589 visit_type_uint8(v, param, &p->multifd_qatzip_level, &err); 590 break; 591 case MIGRATION_PARAMETER_MULTIFD_ZSTD_LEVEL: 592 p->has_multifd_zstd_level = true; 593 visit_type_uint8(v, param, &p->multifd_zstd_level, &err); 594 break; 595 case MIGRATION_PARAMETER_ZERO_PAGE_DETECTION: 596 p->has_zero_page_detection = true; 597 visit_type_ZeroPageDetection(v, param, &p->zero_page_detection, &err); 598 break; 599 case MIGRATION_PARAMETER_XBZRLE_CACHE_SIZE: 600 p->has_xbzrle_cache_size = true; 601 if (!visit_type_size(v, param, &cache_size, &err)) { 602 break; 603 } 604 if (cache_size > INT64_MAX || (size_t)cache_size != cache_size) { 605 error_setg(&err, "Invalid size %s", valuestr); 606 break; 607 } 608 p->xbzrle_cache_size = cache_size; 609 break; 610 case MIGRATION_PARAMETER_MAX_POSTCOPY_BANDWIDTH: 611 p->has_max_postcopy_bandwidth = true; 612 visit_type_size(v, param, &p->max_postcopy_bandwidth, &err); 613 break; 614 case MIGRATION_PARAMETER_ANNOUNCE_INITIAL: 615 p->has_announce_initial = true; 616 visit_type_size(v, param, &p->announce_initial, &err); 617 break; 618 case MIGRATION_PARAMETER_ANNOUNCE_MAX: 619 p->has_announce_max = true; 620 visit_type_size(v, param, &p->announce_max, &err); 621 break; 622 case MIGRATION_PARAMETER_ANNOUNCE_ROUNDS: 623 p->has_announce_rounds = true; 624 visit_type_size(v, param, &p->announce_rounds, &err); 625 break; 626 case MIGRATION_PARAMETER_ANNOUNCE_STEP: 627 p->has_announce_step = true; 628 visit_type_size(v, param, &p->announce_step, &err); 629 break; 630 case MIGRATION_PARAMETER_BLOCK_BITMAP_MAPPING: 631 error_setg(&err, "The block-bitmap-mapping parameter can only be set " 632 "through QMP"); 633 break; 634 case MIGRATION_PARAMETER_X_VCPU_DIRTY_LIMIT_PERIOD: 635 p->has_x_vcpu_dirty_limit_period = true; 636 visit_type_size(v, param, &p->x_vcpu_dirty_limit_period, &err); 637 break; 638 case MIGRATION_PARAMETER_VCPU_DIRTY_LIMIT: 639 p->has_vcpu_dirty_limit = true; 640 visit_type_size(v, param, &p->vcpu_dirty_limit, &err); 641 break; 642 case MIGRATION_PARAMETER_MODE: 643 p->has_mode = true; 644 visit_type_MigMode(v, param, &p->mode, &err); 645 break; 646 case MIGRATION_PARAMETER_DIRECT_IO: 647 p->has_direct_io = true; 648 visit_type_bool(v, param, &p->direct_io, &err); 649 break; 650 default: 651 g_assert_not_reached(); 652 } 653 654 if (err) { 655 goto cleanup; 656 } 657 658 qmp_migrate_set_parameters(p, &err); 659 660 cleanup: 661 qapi_free_MigrateSetParameters(p); 662 visit_free(v); 663 hmp_handle_error(mon, err); 664 } 665 666 void hmp_migrate_start_postcopy(Monitor *mon, const QDict *qdict) 667 { 668 Error *err = NULL; 669 qmp_migrate_start_postcopy(&err); 670 hmp_handle_error(mon, err); 671 } 672 673 #ifdef CONFIG_REPLICATION 674 void hmp_x_colo_lost_heartbeat(Monitor *mon, const QDict *qdict) 675 { 676 Error *err = NULL; 677 678 qmp_x_colo_lost_heartbeat(&err); 679 hmp_handle_error(mon, err); 680 } 681 #endif 682 683 typedef struct HMPMigrationStatus { 684 QEMUTimer *timer; 685 Monitor *mon; 686 } HMPMigrationStatus; 687 688 static void hmp_migrate_status_cb(void *opaque) 689 { 690 HMPMigrationStatus *status = opaque; 691 MigrationInfo *info; 692 693 info = qmp_query_migrate(NULL); 694 if (!info->has_status || info->status == MIGRATION_STATUS_ACTIVE || 695 info->status == MIGRATION_STATUS_SETUP) { 696 timer_mod(status->timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1000); 697 } else { 698 if (info->error_desc) { 699 error_report("%s", info->error_desc); 700 } 701 monitor_resume(status->mon); 702 timer_free(status->timer); 703 g_free(status); 704 } 705 706 qapi_free_MigrationInfo(info); 707 } 708 709 void hmp_migrate(Monitor *mon, const QDict *qdict) 710 { 711 bool detach = qdict_get_try_bool(qdict, "detach", false); 712 bool resume = qdict_get_try_bool(qdict, "resume", false); 713 const char *uri = qdict_get_str(qdict, "uri"); 714 Error *err = NULL; 715 g_autoptr(MigrationChannelList) caps = NULL; 716 g_autoptr(MigrationChannel) channel = NULL; 717 718 if (!migrate_uri_parse(uri, &channel, &err)) { 719 hmp_handle_error(mon, err); 720 return; 721 } 722 QAPI_LIST_PREPEND(caps, g_steal_pointer(&channel)); 723 724 qmp_migrate(NULL, true, caps, false, false, true, resume, &err); 725 if (hmp_handle_error(mon, err)) { 726 return; 727 } 728 729 if (!detach) { 730 HMPMigrationStatus *status; 731 732 if (monitor_suspend(mon) < 0) { 733 monitor_printf(mon, "terminal does not allow synchronous " 734 "migration, continuing detached\n"); 735 return; 736 } 737 738 status = g_malloc0(sizeof(*status)); 739 status->mon = mon; 740 status->timer = timer_new_ms(QEMU_CLOCK_REALTIME, hmp_migrate_status_cb, 741 status); 742 timer_mod(status->timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME)); 743 } 744 } 745 746 void migrate_set_capability_completion(ReadLineState *rs, int nb_args, 747 const char *str) 748 { 749 size_t len; 750 751 len = strlen(str); 752 readline_set_completion_index(rs, len); 753 if (nb_args == 2) { 754 int i; 755 for (i = 0; i < MIGRATION_CAPABILITY__MAX; i++) { 756 readline_add_completion_of(rs, str, MigrationCapability_str(i)); 757 } 758 } else if (nb_args == 3) { 759 readline_add_completion_of(rs, str, "on"); 760 readline_add_completion_of(rs, str, "off"); 761 } 762 } 763 764 void migrate_set_parameter_completion(ReadLineState *rs, int nb_args, 765 const char *str) 766 { 767 size_t len; 768 769 len = strlen(str); 770 readline_set_completion_index(rs, len); 771 if (nb_args == 2) { 772 int i; 773 for (i = 0; i < MIGRATION_PARAMETER__MAX; i++) { 774 readline_add_completion_of(rs, str, MigrationParameter_str(i)); 775 } 776 } 777 } 778 779 static void vm_completion(ReadLineState *rs, const char *str) 780 { 781 size_t len; 782 BlockDriverState *bs; 783 BdrvNextIterator it; 784 785 GRAPH_RDLOCK_GUARD_MAINLOOP(); 786 787 len = strlen(str); 788 readline_set_completion_index(rs, len); 789 790 for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) { 791 SnapshotInfoList *snapshots, *snapshot; 792 bool ok = false; 793 794 if (bdrv_can_snapshot(bs)) { 795 ok = bdrv_query_snapshot_info_list(bs, &snapshots, NULL) == 0; 796 } 797 if (!ok) { 798 continue; 799 } 800 801 snapshot = snapshots; 802 while (snapshot) { 803 readline_add_completion_of(rs, str, snapshot->value->name); 804 readline_add_completion_of(rs, str, snapshot->value->id); 805 snapshot = snapshot->next; 806 } 807 qapi_free_SnapshotInfoList(snapshots); 808 } 809 810 } 811 812 void delvm_completion(ReadLineState *rs, int nb_args, const char *str) 813 { 814 if (nb_args == 2) { 815 vm_completion(rs, str); 816 } 817 } 818 819 void loadvm_completion(ReadLineState *rs, int nb_args, const char *str) 820 { 821 if (nb_args == 2) { 822 vm_completion(rs, str); 823 } 824 } 825