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