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, "decompress-error-check: %s\n", 50 ms->decompress_error_check ? "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 MigrationInfo *info; 58 59 info = qmp_query_migrate(NULL); 60 61 migration_global_dump(mon); 62 63 if (info->blocked_reasons) { 64 strList *reasons = info->blocked_reasons; 65 monitor_printf(mon, "Outgoing migration blocked:\n"); 66 while (reasons) { 67 monitor_printf(mon, " %s\n", reasons->value); 68 reasons = reasons->next; 69 } 70 } 71 72 if (info->has_status) { 73 monitor_printf(mon, "Migration status: %s", 74 MigrationStatus_str(info->status)); 75 if (info->status == MIGRATION_STATUS_FAILED && info->error_desc) { 76 monitor_printf(mon, " (%s)\n", info->error_desc); 77 } else { 78 monitor_printf(mon, "\n"); 79 } 80 81 monitor_printf(mon, "total time: %" PRIu64 " ms\n", 82 info->total_time); 83 if (info->has_expected_downtime) { 84 monitor_printf(mon, "expected downtime: %" PRIu64 " ms\n", 85 info->expected_downtime); 86 } 87 if (info->has_downtime) { 88 monitor_printf(mon, "downtime: %" PRIu64 " ms\n", 89 info->downtime); 90 } 91 if (info->has_setup_time) { 92 monitor_printf(mon, "setup: %" PRIu64 " ms\n", 93 info->setup_time); 94 } 95 } 96 97 if (info->ram) { 98 monitor_printf(mon, "transferred ram: %" PRIu64 " kbytes\n", 99 info->ram->transferred >> 10); 100 monitor_printf(mon, "throughput: %0.2f mbps\n", 101 info->ram->mbps); 102 monitor_printf(mon, "remaining ram: %" PRIu64 " kbytes\n", 103 info->ram->remaining >> 10); 104 monitor_printf(mon, "total ram: %" PRIu64 " kbytes\n", 105 info->ram->total >> 10); 106 monitor_printf(mon, "duplicate: %" PRIu64 " pages\n", 107 info->ram->duplicate); 108 monitor_printf(mon, "skipped: %" PRIu64 " pages\n", 109 info->ram->skipped); 110 monitor_printf(mon, "normal: %" PRIu64 " pages\n", 111 info->ram->normal); 112 monitor_printf(mon, "normal bytes: %" PRIu64 " kbytes\n", 113 info->ram->normal_bytes >> 10); 114 monitor_printf(mon, "dirty sync count: %" PRIu64 "\n", 115 info->ram->dirty_sync_count); 116 monitor_printf(mon, "page size: %" PRIu64 " kbytes\n", 117 info->ram->page_size >> 10); 118 monitor_printf(mon, "multifd bytes: %" PRIu64 " kbytes\n", 119 info->ram->multifd_bytes >> 10); 120 monitor_printf(mon, "pages-per-second: %" PRIu64 "\n", 121 info->ram->pages_per_second); 122 123 if (info->ram->dirty_pages_rate) { 124 monitor_printf(mon, "dirty pages rate: %" PRIu64 " pages\n", 125 info->ram->dirty_pages_rate); 126 } 127 if (info->ram->postcopy_requests) { 128 monitor_printf(mon, "postcopy request count: %" PRIu64 "\n", 129 info->ram->postcopy_requests); 130 } 131 if (info->ram->precopy_bytes) { 132 monitor_printf(mon, "precopy ram: %" PRIu64 " kbytes\n", 133 info->ram->precopy_bytes >> 10); 134 } 135 if (info->ram->downtime_bytes) { 136 monitor_printf(mon, "downtime ram: %" PRIu64 " kbytes\n", 137 info->ram->downtime_bytes >> 10); 138 } 139 if (info->ram->postcopy_bytes) { 140 monitor_printf(mon, "postcopy ram: %" PRIu64 " kbytes\n", 141 info->ram->postcopy_bytes >> 10); 142 } 143 if (info->ram->dirty_sync_missed_zero_copy) { 144 monitor_printf(mon, 145 "Zero-copy-send fallbacks happened: %" PRIu64 " times\n", 146 info->ram->dirty_sync_missed_zero_copy); 147 } 148 } 149 150 if (info->disk) { 151 monitor_printf(mon, "transferred disk: %" PRIu64 " kbytes\n", 152 info->disk->transferred >> 10); 153 monitor_printf(mon, "remaining disk: %" PRIu64 " kbytes\n", 154 info->disk->remaining >> 10); 155 monitor_printf(mon, "total disk: %" PRIu64 " kbytes\n", 156 info->disk->total >> 10); 157 } 158 159 if (info->xbzrle_cache) { 160 monitor_printf(mon, "cache size: %" PRIu64 " bytes\n", 161 info->xbzrle_cache->cache_size); 162 monitor_printf(mon, "xbzrle transferred: %" PRIu64 " kbytes\n", 163 info->xbzrle_cache->bytes >> 10); 164 monitor_printf(mon, "xbzrle pages: %" PRIu64 " pages\n", 165 info->xbzrle_cache->pages); 166 monitor_printf(mon, "xbzrle cache miss: %" PRIu64 " pages\n", 167 info->xbzrle_cache->cache_miss); 168 monitor_printf(mon, "xbzrle cache miss rate: %0.2f\n", 169 info->xbzrle_cache->cache_miss_rate); 170 monitor_printf(mon, "xbzrle encoding rate: %0.2f\n", 171 info->xbzrle_cache->encoding_rate); 172 monitor_printf(mon, "xbzrle overflow: %" PRIu64 "\n", 173 info->xbzrle_cache->overflow); 174 } 175 176 if (info->compression) { 177 monitor_printf(mon, "compression pages: %" PRIu64 " pages\n", 178 info->compression->pages); 179 monitor_printf(mon, "compression busy: %" PRIu64 "\n", 180 info->compression->busy); 181 monitor_printf(mon, "compression busy rate: %0.2f\n", 182 info->compression->busy_rate); 183 monitor_printf(mon, "compressed size: %" PRIu64 " kbytes\n", 184 info->compression->compressed_size >> 10); 185 monitor_printf(mon, "compression rate: %0.2f\n", 186 info->compression->compression_rate); 187 } 188 189 if (info->has_cpu_throttle_percentage) { 190 monitor_printf(mon, "cpu throttle percentage: %" PRIu64 "\n", 191 info->cpu_throttle_percentage); 192 } 193 194 if (info->has_dirty_limit_throttle_time_per_round) { 195 monitor_printf(mon, "dirty-limit throttle time: %" PRIu64 " us\n", 196 info->dirty_limit_throttle_time_per_round); 197 } 198 199 if (info->has_dirty_limit_ring_full_time) { 200 monitor_printf(mon, "dirty-limit ring full time: %" PRIu64 " us\n", 201 info->dirty_limit_ring_full_time); 202 } 203 204 if (info->has_postcopy_blocktime) { 205 monitor_printf(mon, "postcopy blocktime: %u\n", 206 info->postcopy_blocktime); 207 } 208 209 if (info->has_postcopy_vcpu_blocktime) { 210 Visitor *v; 211 char *str; 212 v = string_output_visitor_new(false, &str); 213 visit_type_uint32List(v, NULL, &info->postcopy_vcpu_blocktime, 214 &error_abort); 215 visit_complete(v, &str); 216 monitor_printf(mon, "postcopy vcpu blocktime: %s\n", str); 217 g_free(str); 218 visit_free(v); 219 } 220 if (info->has_socket_address) { 221 SocketAddressList *addr; 222 223 monitor_printf(mon, "socket address: [\n"); 224 225 for (addr = info->socket_address; addr; addr = addr->next) { 226 char *s = socket_uri(addr->value); 227 monitor_printf(mon, "\t%s\n", s); 228 g_free(s); 229 } 230 monitor_printf(mon, "]\n"); 231 } 232 233 if (info->vfio) { 234 monitor_printf(mon, "vfio device transferred: %" PRIu64 " kbytes\n", 235 info->vfio->transferred >> 10); 236 } 237 238 qapi_free_MigrationInfo(info); 239 } 240 241 void hmp_info_migrate_capabilities(Monitor *mon, const QDict *qdict) 242 { 243 MigrationCapabilityStatusList *caps, *cap; 244 245 caps = qmp_query_migrate_capabilities(NULL); 246 247 if (caps) { 248 for (cap = caps; cap; cap = cap->next) { 249 monitor_printf(mon, "%s: %s\n", 250 MigrationCapability_str(cap->value->capability), 251 cap->value->state ? "on" : "off"); 252 } 253 } 254 255 qapi_free_MigrationCapabilityStatusList(caps); 256 } 257 258 void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict) 259 { 260 MigrationParameters *params; 261 262 params = qmp_query_migrate_parameters(NULL); 263 264 if (params) { 265 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 266 MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_INITIAL), 267 params->announce_initial); 268 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 269 MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_MAX), 270 params->announce_max); 271 monitor_printf(mon, "%s: %" PRIu64 "\n", 272 MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_ROUNDS), 273 params->announce_rounds); 274 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 275 MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_STEP), 276 params->announce_step); 277 assert(params->has_compress_level); 278 monitor_printf(mon, "%s: %u\n", 279 MigrationParameter_str(MIGRATION_PARAMETER_COMPRESS_LEVEL), 280 params->compress_level); 281 assert(params->has_compress_threads); 282 monitor_printf(mon, "%s: %u\n", 283 MigrationParameter_str(MIGRATION_PARAMETER_COMPRESS_THREADS), 284 params->compress_threads); 285 assert(params->has_compress_wait_thread); 286 monitor_printf(mon, "%s: %s\n", 287 MigrationParameter_str(MIGRATION_PARAMETER_COMPRESS_WAIT_THREAD), 288 params->compress_wait_thread ? "on" : "off"); 289 assert(params->has_decompress_threads); 290 monitor_printf(mon, "%s: %u\n", 291 MigrationParameter_str(MIGRATION_PARAMETER_DECOMPRESS_THREADS), 292 params->decompress_threads); 293 assert(params->has_throttle_trigger_threshold); 294 monitor_printf(mon, "%s: %u\n", 295 MigrationParameter_str(MIGRATION_PARAMETER_THROTTLE_TRIGGER_THRESHOLD), 296 params->throttle_trigger_threshold); 297 assert(params->has_cpu_throttle_initial); 298 monitor_printf(mon, "%s: %u\n", 299 MigrationParameter_str(MIGRATION_PARAMETER_CPU_THROTTLE_INITIAL), 300 params->cpu_throttle_initial); 301 assert(params->has_cpu_throttle_increment); 302 monitor_printf(mon, "%s: %u\n", 303 MigrationParameter_str(MIGRATION_PARAMETER_CPU_THROTTLE_INCREMENT), 304 params->cpu_throttle_increment); 305 assert(params->has_cpu_throttle_tailslow); 306 monitor_printf(mon, "%s: %s\n", 307 MigrationParameter_str(MIGRATION_PARAMETER_CPU_THROTTLE_TAILSLOW), 308 params->cpu_throttle_tailslow ? "on" : "off"); 309 assert(params->has_max_cpu_throttle); 310 monitor_printf(mon, "%s: %u\n", 311 MigrationParameter_str(MIGRATION_PARAMETER_MAX_CPU_THROTTLE), 312 params->max_cpu_throttle); 313 assert(params->tls_creds); 314 monitor_printf(mon, "%s: '%s'\n", 315 MigrationParameter_str(MIGRATION_PARAMETER_TLS_CREDS), 316 params->tls_creds); 317 assert(params->tls_hostname); 318 monitor_printf(mon, "%s: '%s'\n", 319 MigrationParameter_str(MIGRATION_PARAMETER_TLS_HOSTNAME), 320 params->tls_hostname); 321 assert(params->has_max_bandwidth); 322 monitor_printf(mon, "%s: %" PRIu64 " bytes/second\n", 323 MigrationParameter_str(MIGRATION_PARAMETER_MAX_BANDWIDTH), 324 params->max_bandwidth); 325 assert(params->has_avail_switchover_bandwidth); 326 monitor_printf(mon, "%s: %" PRIu64 " bytes/second\n", 327 MigrationParameter_str(MIGRATION_PARAMETER_AVAIL_SWITCHOVER_BANDWIDTH), 328 params->avail_switchover_bandwidth); 329 assert(params->has_downtime_limit); 330 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 331 MigrationParameter_str(MIGRATION_PARAMETER_DOWNTIME_LIMIT), 332 params->downtime_limit); 333 assert(params->has_x_checkpoint_delay); 334 monitor_printf(mon, "%s: %u ms\n", 335 MigrationParameter_str(MIGRATION_PARAMETER_X_CHECKPOINT_DELAY), 336 params->x_checkpoint_delay); 337 assert(params->has_block_incremental); 338 monitor_printf(mon, "%s: %s\n", 339 MigrationParameter_str(MIGRATION_PARAMETER_BLOCK_INCREMENTAL), 340 params->block_incremental ? "on" : "off"); 341 monitor_printf(mon, "%s: %u\n", 342 MigrationParameter_str(MIGRATION_PARAMETER_MULTIFD_CHANNELS), 343 params->multifd_channels); 344 monitor_printf(mon, "%s: %s\n", 345 MigrationParameter_str(MIGRATION_PARAMETER_MULTIFD_COMPRESSION), 346 MultiFDCompression_str(params->multifd_compression)); 347 monitor_printf(mon, "%s: %" PRIu64 " bytes\n", 348 MigrationParameter_str(MIGRATION_PARAMETER_XBZRLE_CACHE_SIZE), 349 params->xbzrle_cache_size); 350 monitor_printf(mon, "%s: %" PRIu64 "\n", 351 MigrationParameter_str(MIGRATION_PARAMETER_MAX_POSTCOPY_BANDWIDTH), 352 params->max_postcopy_bandwidth); 353 monitor_printf(mon, "%s: '%s'\n", 354 MigrationParameter_str(MIGRATION_PARAMETER_TLS_AUTHZ), 355 params->tls_authz); 356 357 if (params->has_block_bitmap_mapping) { 358 const BitmapMigrationNodeAliasList *bmnal; 359 360 monitor_printf(mon, "%s:\n", 361 MigrationParameter_str( 362 MIGRATION_PARAMETER_BLOCK_BITMAP_MAPPING)); 363 364 for (bmnal = params->block_bitmap_mapping; 365 bmnal; 366 bmnal = bmnal->next) 367 { 368 const BitmapMigrationNodeAlias *bmna = bmnal->value; 369 const BitmapMigrationBitmapAliasList *bmbal; 370 371 monitor_printf(mon, " '%s' -> '%s'\n", 372 bmna->node_name, bmna->alias); 373 374 for (bmbal = bmna->bitmaps; bmbal; bmbal = bmbal->next) { 375 const BitmapMigrationBitmapAlias *bmba = bmbal->value; 376 377 monitor_printf(mon, " '%s' -> '%s'\n", 378 bmba->name, bmba->alias); 379 } 380 } 381 } 382 383 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 384 MigrationParameter_str(MIGRATION_PARAMETER_X_VCPU_DIRTY_LIMIT_PERIOD), 385 params->x_vcpu_dirty_limit_period); 386 387 monitor_printf(mon, "%s: %" PRIu64 " MB/s\n", 388 MigrationParameter_str(MIGRATION_PARAMETER_VCPU_DIRTY_LIMIT), 389 params->vcpu_dirty_limit); 390 391 assert(params->has_mode); 392 monitor_printf(mon, "%s: %s\n", 393 MigrationParameter_str(MIGRATION_PARAMETER_MODE), 394 qapi_enum_lookup(&MigMode_lookup, params->mode)); 395 } 396 397 qapi_free_MigrationParameters(params); 398 } 399 400 void hmp_loadvm(Monitor *mon, const QDict *qdict) 401 { 402 int saved_vm_running = runstate_is_running(); 403 const char *name = qdict_get_str(qdict, "name"); 404 Error *err = NULL; 405 406 vm_stop(RUN_STATE_RESTORE_VM); 407 408 if (load_snapshot(name, NULL, false, NULL, &err) && saved_vm_running) { 409 vm_start(); 410 } 411 hmp_handle_error(mon, err); 412 } 413 414 void hmp_savevm(Monitor *mon, const QDict *qdict) 415 { 416 Error *err = NULL; 417 418 save_snapshot(qdict_get_try_str(qdict, "name"), 419 true, NULL, false, NULL, &err); 420 hmp_handle_error(mon, err); 421 } 422 423 void hmp_delvm(Monitor *mon, const QDict *qdict) 424 { 425 Error *err = NULL; 426 const char *name = qdict_get_str(qdict, "name"); 427 428 delete_snapshot(name, false, NULL, &err); 429 hmp_handle_error(mon, err); 430 } 431 432 void hmp_migrate_cancel(Monitor *mon, const QDict *qdict) 433 { 434 qmp_migrate_cancel(NULL); 435 } 436 437 void hmp_migrate_continue(Monitor *mon, const QDict *qdict) 438 { 439 Error *err = NULL; 440 const char *state = qdict_get_str(qdict, "state"); 441 int val = qapi_enum_parse(&MigrationStatus_lookup, state, -1, &err); 442 443 if (val >= 0) { 444 qmp_migrate_continue(val, &err); 445 } 446 447 hmp_handle_error(mon, err); 448 } 449 450 void hmp_migrate_incoming(Monitor *mon, const QDict *qdict) 451 { 452 Error *err = NULL; 453 const char *uri = qdict_get_str(qdict, "uri"); 454 MigrationChannelList *caps = NULL; 455 g_autoptr(MigrationChannel) channel = NULL; 456 457 if (!migrate_uri_parse(uri, &channel, &err)) { 458 goto end; 459 } 460 QAPI_LIST_PREPEND(caps, g_steal_pointer(&channel)); 461 462 qmp_migrate_incoming(NULL, true, caps, &err); 463 qapi_free_MigrationChannelList(caps); 464 465 end: 466 hmp_handle_error(mon, err); 467 } 468 469 void hmp_migrate_recover(Monitor *mon, const QDict *qdict) 470 { 471 Error *err = NULL; 472 const char *uri = qdict_get_str(qdict, "uri"); 473 474 qmp_migrate_recover(uri, &err); 475 476 hmp_handle_error(mon, err); 477 } 478 479 void hmp_migrate_pause(Monitor *mon, const QDict *qdict) 480 { 481 Error *err = NULL; 482 483 qmp_migrate_pause(&err); 484 485 hmp_handle_error(mon, err); 486 } 487 488 489 void hmp_migrate_set_capability(Monitor *mon, const QDict *qdict) 490 { 491 const char *cap = qdict_get_str(qdict, "capability"); 492 bool state = qdict_get_bool(qdict, "state"); 493 Error *err = NULL; 494 MigrationCapabilityStatusList *caps = NULL; 495 MigrationCapabilityStatus *value; 496 int val; 497 498 val = qapi_enum_parse(&MigrationCapability_lookup, cap, -1, &err); 499 if (val < 0) { 500 goto end; 501 } 502 503 value = g_malloc0(sizeof(*value)); 504 value->capability = val; 505 value->state = state; 506 QAPI_LIST_PREPEND(caps, value); 507 qmp_migrate_set_capabilities(caps, &err); 508 qapi_free_MigrationCapabilityStatusList(caps); 509 510 end: 511 hmp_handle_error(mon, err); 512 } 513 514 void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict) 515 { 516 const char *param = qdict_get_str(qdict, "parameter"); 517 const char *valuestr = qdict_get_str(qdict, "value"); 518 Visitor *v = string_input_visitor_new(valuestr); 519 MigrateSetParameters *p = g_new0(MigrateSetParameters, 1); 520 uint64_t valuebw = 0; 521 uint64_t cache_size; 522 Error *err = NULL; 523 int val, ret; 524 525 val = qapi_enum_parse(&MigrationParameter_lookup, param, -1, &err); 526 if (val < 0) { 527 goto cleanup; 528 } 529 530 switch (val) { 531 case MIGRATION_PARAMETER_COMPRESS_LEVEL: 532 p->has_compress_level = true; 533 visit_type_uint8(v, param, &p->compress_level, &err); 534 break; 535 case MIGRATION_PARAMETER_COMPRESS_THREADS: 536 p->has_compress_threads = true; 537 visit_type_uint8(v, param, &p->compress_threads, &err); 538 break; 539 case MIGRATION_PARAMETER_COMPRESS_WAIT_THREAD: 540 p->has_compress_wait_thread = true; 541 visit_type_bool(v, param, &p->compress_wait_thread, &err); 542 break; 543 case MIGRATION_PARAMETER_DECOMPRESS_THREADS: 544 p->has_decompress_threads = true; 545 visit_type_uint8(v, param, &p->decompress_threads, &err); 546 break; 547 case MIGRATION_PARAMETER_THROTTLE_TRIGGER_THRESHOLD: 548 p->has_throttle_trigger_threshold = true; 549 visit_type_uint8(v, param, &p->throttle_trigger_threshold, &err); 550 break; 551 case MIGRATION_PARAMETER_CPU_THROTTLE_INITIAL: 552 p->has_cpu_throttle_initial = true; 553 visit_type_uint8(v, param, &p->cpu_throttle_initial, &err); 554 break; 555 case MIGRATION_PARAMETER_CPU_THROTTLE_INCREMENT: 556 p->has_cpu_throttle_increment = true; 557 visit_type_uint8(v, param, &p->cpu_throttle_increment, &err); 558 break; 559 case MIGRATION_PARAMETER_CPU_THROTTLE_TAILSLOW: 560 p->has_cpu_throttle_tailslow = true; 561 visit_type_bool(v, param, &p->cpu_throttle_tailslow, &err); 562 break; 563 case MIGRATION_PARAMETER_MAX_CPU_THROTTLE: 564 p->has_max_cpu_throttle = true; 565 visit_type_uint8(v, param, &p->max_cpu_throttle, &err); 566 break; 567 case MIGRATION_PARAMETER_TLS_CREDS: 568 p->tls_creds = g_new0(StrOrNull, 1); 569 p->tls_creds->type = QTYPE_QSTRING; 570 visit_type_str(v, param, &p->tls_creds->u.s, &err); 571 break; 572 case MIGRATION_PARAMETER_TLS_HOSTNAME: 573 p->tls_hostname = g_new0(StrOrNull, 1); 574 p->tls_hostname->type = QTYPE_QSTRING; 575 visit_type_str(v, param, &p->tls_hostname->u.s, &err); 576 break; 577 case MIGRATION_PARAMETER_TLS_AUTHZ: 578 p->tls_authz = g_new0(StrOrNull, 1); 579 p->tls_authz->type = QTYPE_QSTRING; 580 visit_type_str(v, param, &p->tls_authz->u.s, &err); 581 break; 582 case MIGRATION_PARAMETER_MAX_BANDWIDTH: 583 p->has_max_bandwidth = true; 584 /* 585 * Can't use visit_type_size() here, because it 586 * defaults to Bytes rather than Mebibytes. 587 */ 588 ret = qemu_strtosz_MiB(valuestr, NULL, &valuebw); 589 if (ret < 0 || valuebw > INT64_MAX 590 || (size_t)valuebw != valuebw) { 591 error_setg(&err, "Invalid size %s", valuestr); 592 break; 593 } 594 p->max_bandwidth = valuebw; 595 break; 596 case MIGRATION_PARAMETER_AVAIL_SWITCHOVER_BANDWIDTH: 597 p->has_avail_switchover_bandwidth = true; 598 ret = qemu_strtosz_MiB(valuestr, NULL, &valuebw); 599 if (ret < 0 || valuebw > INT64_MAX 600 || (size_t)valuebw != valuebw) { 601 error_setg(&err, "Invalid size %s", valuestr); 602 break; 603 } 604 p->avail_switchover_bandwidth = valuebw; 605 break; 606 case MIGRATION_PARAMETER_DOWNTIME_LIMIT: 607 p->has_downtime_limit = true; 608 visit_type_size(v, param, &p->downtime_limit, &err); 609 break; 610 case MIGRATION_PARAMETER_X_CHECKPOINT_DELAY: 611 p->has_x_checkpoint_delay = true; 612 visit_type_uint32(v, param, &p->x_checkpoint_delay, &err); 613 break; 614 case MIGRATION_PARAMETER_BLOCK_INCREMENTAL: 615 p->has_block_incremental = true; 616 visit_type_bool(v, param, &p->block_incremental, &err); 617 break; 618 case MIGRATION_PARAMETER_MULTIFD_CHANNELS: 619 p->has_multifd_channels = true; 620 visit_type_uint8(v, param, &p->multifd_channels, &err); 621 break; 622 case MIGRATION_PARAMETER_MULTIFD_COMPRESSION: 623 p->has_multifd_compression = true; 624 visit_type_MultiFDCompression(v, param, &p->multifd_compression, 625 &err); 626 break; 627 case MIGRATION_PARAMETER_MULTIFD_ZLIB_LEVEL: 628 p->has_multifd_zlib_level = true; 629 visit_type_uint8(v, param, &p->multifd_zlib_level, &err); 630 break; 631 case MIGRATION_PARAMETER_MULTIFD_ZSTD_LEVEL: 632 p->has_multifd_zstd_level = true; 633 visit_type_uint8(v, param, &p->multifd_zstd_level, &err); 634 break; 635 case MIGRATION_PARAMETER_XBZRLE_CACHE_SIZE: 636 p->has_xbzrle_cache_size = true; 637 if (!visit_type_size(v, param, &cache_size, &err)) { 638 break; 639 } 640 if (cache_size > INT64_MAX || (size_t)cache_size != cache_size) { 641 error_setg(&err, "Invalid size %s", valuestr); 642 break; 643 } 644 p->xbzrle_cache_size = cache_size; 645 break; 646 case MIGRATION_PARAMETER_MAX_POSTCOPY_BANDWIDTH: 647 p->has_max_postcopy_bandwidth = true; 648 visit_type_size(v, param, &p->max_postcopy_bandwidth, &err); 649 break; 650 case MIGRATION_PARAMETER_ANNOUNCE_INITIAL: 651 p->has_announce_initial = true; 652 visit_type_size(v, param, &p->announce_initial, &err); 653 break; 654 case MIGRATION_PARAMETER_ANNOUNCE_MAX: 655 p->has_announce_max = true; 656 visit_type_size(v, param, &p->announce_max, &err); 657 break; 658 case MIGRATION_PARAMETER_ANNOUNCE_ROUNDS: 659 p->has_announce_rounds = true; 660 visit_type_size(v, param, &p->announce_rounds, &err); 661 break; 662 case MIGRATION_PARAMETER_ANNOUNCE_STEP: 663 p->has_announce_step = true; 664 visit_type_size(v, param, &p->announce_step, &err); 665 break; 666 case MIGRATION_PARAMETER_BLOCK_BITMAP_MAPPING: 667 error_setg(&err, "The block-bitmap-mapping parameter can only be set " 668 "through QMP"); 669 break; 670 case MIGRATION_PARAMETER_X_VCPU_DIRTY_LIMIT_PERIOD: 671 p->has_x_vcpu_dirty_limit_period = true; 672 visit_type_size(v, param, &p->x_vcpu_dirty_limit_period, &err); 673 break; 674 case MIGRATION_PARAMETER_VCPU_DIRTY_LIMIT: 675 p->has_vcpu_dirty_limit = true; 676 visit_type_size(v, param, &p->vcpu_dirty_limit, &err); 677 break; 678 case MIGRATION_PARAMETER_MODE: 679 p->has_mode = true; 680 visit_type_MigMode(v, param, &p->mode, &err); 681 break; 682 default: 683 assert(0); 684 } 685 686 if (err) { 687 goto cleanup; 688 } 689 690 qmp_migrate_set_parameters(p, &err); 691 692 cleanup: 693 qapi_free_MigrateSetParameters(p); 694 visit_free(v); 695 hmp_handle_error(mon, err); 696 } 697 698 void hmp_migrate_start_postcopy(Monitor *mon, const QDict *qdict) 699 { 700 Error *err = NULL; 701 qmp_migrate_start_postcopy(&err); 702 hmp_handle_error(mon, err); 703 } 704 705 #ifdef CONFIG_REPLICATION 706 void hmp_x_colo_lost_heartbeat(Monitor *mon, const QDict *qdict) 707 { 708 Error *err = NULL; 709 710 qmp_x_colo_lost_heartbeat(&err); 711 hmp_handle_error(mon, err); 712 } 713 #endif 714 715 typedef struct HMPMigrationStatus { 716 QEMUTimer *timer; 717 Monitor *mon; 718 } HMPMigrationStatus; 719 720 static void hmp_migrate_status_cb(void *opaque) 721 { 722 HMPMigrationStatus *status = opaque; 723 MigrationInfo *info; 724 725 info = qmp_query_migrate(NULL); 726 if (!info->has_status || info->status == MIGRATION_STATUS_ACTIVE || 727 info->status == MIGRATION_STATUS_SETUP) { 728 if (info->disk) { 729 int progress; 730 731 if (info->disk->remaining) { 732 progress = info->disk->transferred * 100 / info->disk->total; 733 } else { 734 progress = 100; 735 } 736 737 monitor_printf(status->mon, "Completed %d %%\r", progress); 738 monitor_flush(status->mon); 739 } 740 741 timer_mod(status->timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1000); 742 } else { 743 if (migrate_block()) { 744 monitor_printf(status->mon, "\n"); 745 } 746 if (info->error_desc) { 747 error_report("%s", info->error_desc); 748 } 749 monitor_resume(status->mon); 750 timer_free(status->timer); 751 g_free(status); 752 } 753 754 qapi_free_MigrationInfo(info); 755 } 756 757 void hmp_migrate(Monitor *mon, const QDict *qdict) 758 { 759 bool detach = qdict_get_try_bool(qdict, "detach", false); 760 bool blk = qdict_get_try_bool(qdict, "blk", false); 761 bool inc = qdict_get_try_bool(qdict, "inc", false); 762 bool resume = qdict_get_try_bool(qdict, "resume", false); 763 const char *uri = qdict_get_str(qdict, "uri"); 764 Error *err = NULL; 765 MigrationChannelList *caps = NULL; 766 g_autoptr(MigrationChannel) channel = NULL; 767 768 if (inc) { 769 warn_report("option '-i' is deprecated;" 770 " use blockdev-mirror with NBD instead"); 771 } 772 773 if (blk) { 774 warn_report("option '-b' is deprecated;" 775 " use blockdev-mirror with NBD instead"); 776 } 777 778 if (!migrate_uri_parse(uri, &channel, &err)) { 779 hmp_handle_error(mon, err); 780 return; 781 } 782 QAPI_LIST_PREPEND(caps, g_steal_pointer(&channel)); 783 784 qmp_migrate(NULL, true, caps, !!blk, blk, !!inc, inc, 785 false, false, true, resume, &err); 786 if (hmp_handle_error(mon, err)) { 787 return; 788 } 789 790 qapi_free_MigrationChannelList(caps); 791 792 if (!detach) { 793 HMPMigrationStatus *status; 794 795 if (monitor_suspend(mon) < 0) { 796 monitor_printf(mon, "terminal does not allow synchronous " 797 "migration, continuing detached\n"); 798 return; 799 } 800 801 status = g_malloc0(sizeof(*status)); 802 status->mon = mon; 803 status->timer = timer_new_ms(QEMU_CLOCK_REALTIME, hmp_migrate_status_cb, 804 status); 805 timer_mod(status->timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME)); 806 } 807 } 808 809 void migrate_set_capability_completion(ReadLineState *rs, int nb_args, 810 const char *str) 811 { 812 size_t len; 813 814 len = strlen(str); 815 readline_set_completion_index(rs, len); 816 if (nb_args == 2) { 817 int i; 818 for (i = 0; i < MIGRATION_CAPABILITY__MAX; i++) { 819 readline_add_completion_of(rs, str, MigrationCapability_str(i)); 820 } 821 } else if (nb_args == 3) { 822 readline_add_completion_of(rs, str, "on"); 823 readline_add_completion_of(rs, str, "off"); 824 } 825 } 826 827 void migrate_set_parameter_completion(ReadLineState *rs, int nb_args, 828 const char *str) 829 { 830 size_t len; 831 832 len = strlen(str); 833 readline_set_completion_index(rs, len); 834 if (nb_args == 2) { 835 int i; 836 for (i = 0; i < MIGRATION_PARAMETER__MAX; i++) { 837 readline_add_completion_of(rs, str, MigrationParameter_str(i)); 838 } 839 } 840 } 841 842 static void vm_completion(ReadLineState *rs, const char *str) 843 { 844 size_t len; 845 BlockDriverState *bs; 846 BdrvNextIterator it; 847 848 GRAPH_RDLOCK_GUARD_MAINLOOP(); 849 850 len = strlen(str); 851 readline_set_completion_index(rs, len); 852 853 for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) { 854 SnapshotInfoList *snapshots, *snapshot; 855 AioContext *ctx = bdrv_get_aio_context(bs); 856 bool ok = false; 857 858 aio_context_acquire(ctx); 859 if (bdrv_can_snapshot(bs)) { 860 ok = bdrv_query_snapshot_info_list(bs, &snapshots, NULL) == 0; 861 } 862 aio_context_release(ctx); 863 if (!ok) { 864 continue; 865 } 866 867 snapshot = snapshots; 868 while (snapshot) { 869 readline_add_completion_of(rs, str, snapshot->value->name); 870 readline_add_completion_of(rs, str, snapshot->value->id); 871 snapshot = snapshot->next; 872 } 873 qapi_free_SnapshotInfoList(snapshots); 874 } 875 876 } 877 878 void delvm_completion(ReadLineState *rs, int nb_args, const char *str) 879 { 880 if (nb_args == 2) { 881 vm_completion(rs, str); 882 } 883 } 884 885 void loadvm_completion(ReadLineState *rs, int nb_args, const char *str) 886 { 887 if (nb_args == 2) { 888 vm_completion(rs, str); 889 } 890 } 891