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 "migration.h" 34 35 static void migration_global_dump(Monitor *mon) 36 { 37 MigrationState *ms = migrate_get_current(); 38 39 monitor_printf(mon, "globals:\n"); 40 monitor_printf(mon, "store-global-state: %s\n", 41 ms->store_global_state ? "on" : "off"); 42 monitor_printf(mon, "only-migratable: %s\n", 43 only_migratable ? "on" : "off"); 44 monitor_printf(mon, "send-configuration: %s\n", 45 ms->send_configuration ? "on" : "off"); 46 monitor_printf(mon, "send-section-footer: %s\n", 47 ms->send_section_footer ? "on" : "off"); 48 monitor_printf(mon, "decompress-error-check: %s\n", 49 ms->decompress_error_check ? "on" : "off"); 50 monitor_printf(mon, "clear-bitmap-shift: %u\n", 51 ms->clear_bitmap_shift); 52 } 53 54 void hmp_info_migrate(Monitor *mon, const QDict *qdict) 55 { 56 MigrationInfo *info; 57 58 info = qmp_query_migrate(NULL); 59 60 migration_global_dump(mon); 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, "Migration 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 monitor_printf(mon, "total time: %" PRIu64 " ms\n", 81 info->total_time); 82 if (info->has_expected_downtime) { 83 monitor_printf(mon, "expected downtime: %" PRIu64 " ms\n", 84 info->expected_downtime); 85 } 86 if (info->has_downtime) { 87 monitor_printf(mon, "downtime: %" PRIu64 " ms\n", 88 info->downtime); 89 } 90 if (info->has_setup_time) { 91 monitor_printf(mon, "setup: %" PRIu64 " ms\n", 92 info->setup_time); 93 } 94 } 95 96 if (info->ram) { 97 monitor_printf(mon, "transferred ram: %" PRIu64 " kbytes\n", 98 info->ram->transferred >> 10); 99 monitor_printf(mon, "throughput: %0.2f mbps\n", 100 info->ram->mbps); 101 monitor_printf(mon, "remaining ram: %" PRIu64 " kbytes\n", 102 info->ram->remaining >> 10); 103 monitor_printf(mon, "total ram: %" PRIu64 " kbytes\n", 104 info->ram->total >> 10); 105 monitor_printf(mon, "duplicate: %" PRIu64 " pages\n", 106 info->ram->duplicate); 107 monitor_printf(mon, "skipped: %" PRIu64 " pages\n", 108 info->ram->skipped); 109 monitor_printf(mon, "normal: %" PRIu64 " pages\n", 110 info->ram->normal); 111 monitor_printf(mon, "normal bytes: %" PRIu64 " kbytes\n", 112 info->ram->normal_bytes >> 10); 113 monitor_printf(mon, "dirty sync count: %" PRIu64 "\n", 114 info->ram->dirty_sync_count); 115 monitor_printf(mon, "page size: %" PRIu64 " kbytes\n", 116 info->ram->page_size >> 10); 117 monitor_printf(mon, "multifd bytes: %" PRIu64 " kbytes\n", 118 info->ram->multifd_bytes >> 10); 119 monitor_printf(mon, "pages-per-second: %" PRIu64 "\n", 120 info->ram->pages_per_second); 121 122 if (info->ram->dirty_pages_rate) { 123 monitor_printf(mon, "dirty pages rate: %" PRIu64 " pages\n", 124 info->ram->dirty_pages_rate); 125 } 126 if (info->ram->postcopy_requests) { 127 monitor_printf(mon, "postcopy request count: %" PRIu64 "\n", 128 info->ram->postcopy_requests); 129 } 130 if (info->ram->precopy_bytes) { 131 monitor_printf(mon, "precopy ram: %" PRIu64 " kbytes\n", 132 info->ram->precopy_bytes >> 10); 133 } 134 if (info->ram->downtime_bytes) { 135 monitor_printf(mon, "downtime ram: %" PRIu64 " kbytes\n", 136 info->ram->downtime_bytes >> 10); 137 } 138 if (info->ram->postcopy_bytes) { 139 monitor_printf(mon, "postcopy ram: %" PRIu64 " kbytes\n", 140 info->ram->postcopy_bytes >> 10); 141 } 142 if (info->ram->dirty_sync_missed_zero_copy) { 143 monitor_printf(mon, 144 "Zero-copy-send fallbacks happened: %" PRIu64 " times\n", 145 info->ram->dirty_sync_missed_zero_copy); 146 } 147 } 148 149 if (info->disk) { 150 monitor_printf(mon, "transferred disk: %" PRIu64 " kbytes\n", 151 info->disk->transferred >> 10); 152 monitor_printf(mon, "remaining disk: %" PRIu64 " kbytes\n", 153 info->disk->remaining >> 10); 154 monitor_printf(mon, "total disk: %" PRIu64 " kbytes\n", 155 info->disk->total >> 10); 156 } 157 158 if (info->xbzrle_cache) { 159 monitor_printf(mon, "cache size: %" PRIu64 " bytes\n", 160 info->xbzrle_cache->cache_size); 161 monitor_printf(mon, "xbzrle transferred: %" PRIu64 " kbytes\n", 162 info->xbzrle_cache->bytes >> 10); 163 monitor_printf(mon, "xbzrle pages: %" PRIu64 " pages\n", 164 info->xbzrle_cache->pages); 165 monitor_printf(mon, "xbzrle cache miss: %" PRIu64 " pages\n", 166 info->xbzrle_cache->cache_miss); 167 monitor_printf(mon, "xbzrle cache miss rate: %0.2f\n", 168 info->xbzrle_cache->cache_miss_rate); 169 monitor_printf(mon, "xbzrle encoding rate: %0.2f\n", 170 info->xbzrle_cache->encoding_rate); 171 monitor_printf(mon, "xbzrle overflow: %" PRIu64 "\n", 172 info->xbzrle_cache->overflow); 173 } 174 175 if (info->compression) { 176 monitor_printf(mon, "compression pages: %" PRIu64 " pages\n", 177 info->compression->pages); 178 monitor_printf(mon, "compression busy: %" PRIu64 "\n", 179 info->compression->busy); 180 monitor_printf(mon, "compression busy rate: %0.2f\n", 181 info->compression->busy_rate); 182 monitor_printf(mon, "compressed size: %" PRIu64 " kbytes\n", 183 info->compression->compressed_size >> 10); 184 monitor_printf(mon, "compression rate: %0.2f\n", 185 info->compression->compression_rate); 186 } 187 188 if (info->has_cpu_throttle_percentage) { 189 monitor_printf(mon, "cpu throttle percentage: %" PRIu64 "\n", 190 info->cpu_throttle_percentage); 191 } 192 193 if (info->has_dirty_limit_throttle_time_per_round) { 194 monitor_printf(mon, "dirty-limit throttle time: %" PRIu64 " us\n", 195 info->dirty_limit_throttle_time_per_round); 196 } 197 198 if (info->has_dirty_limit_ring_full_time) { 199 monitor_printf(mon, "dirty-limit ring full time: %" PRIu64 " us\n", 200 info->dirty_limit_ring_full_time); 201 } 202 203 if (info->has_postcopy_blocktime) { 204 monitor_printf(mon, "postcopy blocktime: %u\n", 205 info->postcopy_blocktime); 206 } 207 208 if (info->has_postcopy_vcpu_blocktime) { 209 Visitor *v; 210 char *str; 211 v = string_output_visitor_new(false, &str); 212 visit_type_uint32List(v, NULL, &info->postcopy_vcpu_blocktime, 213 &error_abort); 214 visit_complete(v, &str); 215 monitor_printf(mon, "postcopy vcpu blocktime: %s\n", str); 216 g_free(str); 217 visit_free(v); 218 } 219 if (info->has_socket_address) { 220 SocketAddressList *addr; 221 222 monitor_printf(mon, "socket address: [\n"); 223 224 for (addr = info->socket_address; addr; addr = addr->next) { 225 char *s = socket_uri(addr->value); 226 monitor_printf(mon, "\t%s\n", s); 227 g_free(s); 228 } 229 monitor_printf(mon, "]\n"); 230 } 231 232 if (info->vfio) { 233 monitor_printf(mon, "vfio device transferred: %" PRIu64 " kbytes\n", 234 info->vfio->transferred >> 10); 235 } 236 237 qapi_free_MigrationInfo(info); 238 } 239 240 void hmp_info_migrate_capabilities(Monitor *mon, const QDict *qdict) 241 { 242 MigrationCapabilityStatusList *caps, *cap; 243 244 caps = qmp_query_migrate_capabilities(NULL); 245 246 if (caps) { 247 for (cap = caps; cap; cap = cap->next) { 248 monitor_printf(mon, "%s: %s\n", 249 MigrationCapability_str(cap->value->capability), 250 cap->value->state ? "on" : "off"); 251 } 252 } 253 254 qapi_free_MigrationCapabilityStatusList(caps); 255 } 256 257 void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict) 258 { 259 MigrationParameters *params; 260 261 params = qmp_query_migrate_parameters(NULL); 262 263 if (params) { 264 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 265 MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_INITIAL), 266 params->announce_initial); 267 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 268 MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_MAX), 269 params->announce_max); 270 monitor_printf(mon, "%s: %" PRIu64 "\n", 271 MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_ROUNDS), 272 params->announce_rounds); 273 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 274 MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_STEP), 275 params->announce_step); 276 assert(params->has_compress_level); 277 monitor_printf(mon, "%s: %u\n", 278 MigrationParameter_str(MIGRATION_PARAMETER_COMPRESS_LEVEL), 279 params->compress_level); 280 assert(params->has_compress_threads); 281 monitor_printf(mon, "%s: %u\n", 282 MigrationParameter_str(MIGRATION_PARAMETER_COMPRESS_THREADS), 283 params->compress_threads); 284 assert(params->has_compress_wait_thread); 285 monitor_printf(mon, "%s: %s\n", 286 MigrationParameter_str(MIGRATION_PARAMETER_COMPRESS_WAIT_THREAD), 287 params->compress_wait_thread ? "on" : "off"); 288 assert(params->has_decompress_threads); 289 monitor_printf(mon, "%s: %u\n", 290 MigrationParameter_str(MIGRATION_PARAMETER_DECOMPRESS_THREADS), 291 params->decompress_threads); 292 assert(params->has_throttle_trigger_threshold); 293 monitor_printf(mon, "%s: %u\n", 294 MigrationParameter_str(MIGRATION_PARAMETER_THROTTLE_TRIGGER_THRESHOLD), 295 params->throttle_trigger_threshold); 296 assert(params->has_cpu_throttle_initial); 297 monitor_printf(mon, "%s: %u\n", 298 MigrationParameter_str(MIGRATION_PARAMETER_CPU_THROTTLE_INITIAL), 299 params->cpu_throttle_initial); 300 assert(params->has_cpu_throttle_increment); 301 monitor_printf(mon, "%s: %u\n", 302 MigrationParameter_str(MIGRATION_PARAMETER_CPU_THROTTLE_INCREMENT), 303 params->cpu_throttle_increment); 304 assert(params->has_cpu_throttle_tailslow); 305 monitor_printf(mon, "%s: %s\n", 306 MigrationParameter_str(MIGRATION_PARAMETER_CPU_THROTTLE_TAILSLOW), 307 params->cpu_throttle_tailslow ? "on" : "off"); 308 assert(params->has_max_cpu_throttle); 309 monitor_printf(mon, "%s: %u\n", 310 MigrationParameter_str(MIGRATION_PARAMETER_MAX_CPU_THROTTLE), 311 params->max_cpu_throttle); 312 assert(params->tls_creds); 313 monitor_printf(mon, "%s: '%s'\n", 314 MigrationParameter_str(MIGRATION_PARAMETER_TLS_CREDS), 315 params->tls_creds); 316 assert(params->tls_hostname); 317 monitor_printf(mon, "%s: '%s'\n", 318 MigrationParameter_str(MIGRATION_PARAMETER_TLS_HOSTNAME), 319 params->tls_hostname); 320 assert(params->has_max_bandwidth); 321 monitor_printf(mon, "%s: %" PRIu64 " bytes/second\n", 322 MigrationParameter_str(MIGRATION_PARAMETER_MAX_BANDWIDTH), 323 params->max_bandwidth); 324 assert(params->has_downtime_limit); 325 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 326 MigrationParameter_str(MIGRATION_PARAMETER_DOWNTIME_LIMIT), 327 params->downtime_limit); 328 assert(params->has_x_checkpoint_delay); 329 monitor_printf(mon, "%s: %u ms\n", 330 MigrationParameter_str(MIGRATION_PARAMETER_X_CHECKPOINT_DELAY), 331 params->x_checkpoint_delay); 332 assert(params->has_block_incremental); 333 monitor_printf(mon, "%s: %s\n", 334 MigrationParameter_str(MIGRATION_PARAMETER_BLOCK_INCREMENTAL), 335 params->block_incremental ? "on" : "off"); 336 monitor_printf(mon, "%s: %u\n", 337 MigrationParameter_str(MIGRATION_PARAMETER_MULTIFD_CHANNELS), 338 params->multifd_channels); 339 monitor_printf(mon, "%s: %s\n", 340 MigrationParameter_str(MIGRATION_PARAMETER_MULTIFD_COMPRESSION), 341 MultiFDCompression_str(params->multifd_compression)); 342 monitor_printf(mon, "%s: %" PRIu64 " bytes\n", 343 MigrationParameter_str(MIGRATION_PARAMETER_XBZRLE_CACHE_SIZE), 344 params->xbzrle_cache_size); 345 monitor_printf(mon, "%s: %" PRIu64 "\n", 346 MigrationParameter_str(MIGRATION_PARAMETER_MAX_POSTCOPY_BANDWIDTH), 347 params->max_postcopy_bandwidth); 348 monitor_printf(mon, "%s: '%s'\n", 349 MigrationParameter_str(MIGRATION_PARAMETER_TLS_AUTHZ), 350 params->tls_authz); 351 352 if (params->has_block_bitmap_mapping) { 353 const BitmapMigrationNodeAliasList *bmnal; 354 355 monitor_printf(mon, "%s:\n", 356 MigrationParameter_str( 357 MIGRATION_PARAMETER_BLOCK_BITMAP_MAPPING)); 358 359 for (bmnal = params->block_bitmap_mapping; 360 bmnal; 361 bmnal = bmnal->next) 362 { 363 const BitmapMigrationNodeAlias *bmna = bmnal->value; 364 const BitmapMigrationBitmapAliasList *bmbal; 365 366 monitor_printf(mon, " '%s' -> '%s'\n", 367 bmna->node_name, bmna->alias); 368 369 for (bmbal = bmna->bitmaps; bmbal; bmbal = bmbal->next) { 370 const BitmapMigrationBitmapAlias *bmba = bmbal->value; 371 372 monitor_printf(mon, " '%s' -> '%s'\n", 373 bmba->name, bmba->alias); 374 } 375 } 376 } 377 378 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 379 MigrationParameter_str(MIGRATION_PARAMETER_X_VCPU_DIRTY_LIMIT_PERIOD), 380 params->x_vcpu_dirty_limit_period); 381 382 monitor_printf(mon, "%s: %" PRIu64 " MB/s\n", 383 MigrationParameter_str(MIGRATION_PARAMETER_VCPU_DIRTY_LIMIT), 384 params->vcpu_dirty_limit); 385 } 386 387 qapi_free_MigrationParameters(params); 388 } 389 390 void hmp_loadvm(Monitor *mon, const QDict *qdict) 391 { 392 int saved_vm_running = runstate_is_running(); 393 const char *name = qdict_get_str(qdict, "name"); 394 Error *err = NULL; 395 396 vm_stop(RUN_STATE_RESTORE_VM); 397 398 if (load_snapshot(name, NULL, false, NULL, &err) && saved_vm_running) { 399 vm_start(); 400 } 401 hmp_handle_error(mon, err); 402 } 403 404 void hmp_savevm(Monitor *mon, const QDict *qdict) 405 { 406 Error *err = NULL; 407 408 save_snapshot(qdict_get_try_str(qdict, "name"), 409 true, NULL, false, NULL, &err); 410 hmp_handle_error(mon, err); 411 } 412 413 void hmp_delvm(Monitor *mon, const QDict *qdict) 414 { 415 Error *err = NULL; 416 const char *name = qdict_get_str(qdict, "name"); 417 418 delete_snapshot(name, false, NULL, &err); 419 hmp_handle_error(mon, err); 420 } 421 422 void hmp_migrate_cancel(Monitor *mon, const QDict *qdict) 423 { 424 qmp_migrate_cancel(NULL); 425 } 426 427 void hmp_migrate_continue(Monitor *mon, const QDict *qdict) 428 { 429 Error *err = NULL; 430 const char *state = qdict_get_str(qdict, "state"); 431 int val = qapi_enum_parse(&MigrationStatus_lookup, state, -1, &err); 432 433 if (val >= 0) { 434 qmp_migrate_continue(val, &err); 435 } 436 437 hmp_handle_error(mon, err); 438 } 439 440 void hmp_migrate_incoming(Monitor *mon, const QDict *qdict) 441 { 442 Error *err = NULL; 443 const char *uri = qdict_get_str(qdict, "uri"); 444 445 qmp_migrate_incoming(uri, &err); 446 447 hmp_handle_error(mon, err); 448 } 449 450 void hmp_migrate_recover(Monitor *mon, const QDict *qdict) 451 { 452 Error *err = NULL; 453 const char *uri = qdict_get_str(qdict, "uri"); 454 455 qmp_migrate_recover(uri, &err); 456 457 hmp_handle_error(mon, err); 458 } 459 460 void hmp_migrate_pause(Monitor *mon, const QDict *qdict) 461 { 462 Error *err = NULL; 463 464 qmp_migrate_pause(&err); 465 466 hmp_handle_error(mon, err); 467 } 468 469 470 void hmp_migrate_set_capability(Monitor *mon, const QDict *qdict) 471 { 472 const char *cap = qdict_get_str(qdict, "capability"); 473 bool state = qdict_get_bool(qdict, "state"); 474 Error *err = NULL; 475 MigrationCapabilityStatusList *caps = NULL; 476 MigrationCapabilityStatus *value; 477 int val; 478 479 val = qapi_enum_parse(&MigrationCapability_lookup, cap, -1, &err); 480 if (val < 0) { 481 goto end; 482 } 483 484 value = g_malloc0(sizeof(*value)); 485 value->capability = val; 486 value->state = state; 487 QAPI_LIST_PREPEND(caps, value); 488 qmp_migrate_set_capabilities(caps, &err); 489 qapi_free_MigrationCapabilityStatusList(caps); 490 491 end: 492 hmp_handle_error(mon, err); 493 } 494 495 void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict) 496 { 497 const char *param = qdict_get_str(qdict, "parameter"); 498 const char *valuestr = qdict_get_str(qdict, "value"); 499 Visitor *v = string_input_visitor_new(valuestr); 500 MigrateSetParameters *p = g_new0(MigrateSetParameters, 1); 501 uint64_t valuebw = 0; 502 uint64_t cache_size; 503 Error *err = NULL; 504 int val, ret; 505 506 val = qapi_enum_parse(&MigrationParameter_lookup, param, -1, &err); 507 if (val < 0) { 508 goto cleanup; 509 } 510 511 switch (val) { 512 case MIGRATION_PARAMETER_COMPRESS_LEVEL: 513 p->has_compress_level = true; 514 visit_type_uint8(v, param, &p->compress_level, &err); 515 break; 516 case MIGRATION_PARAMETER_COMPRESS_THREADS: 517 p->has_compress_threads = true; 518 visit_type_uint8(v, param, &p->compress_threads, &err); 519 break; 520 case MIGRATION_PARAMETER_COMPRESS_WAIT_THREAD: 521 p->has_compress_wait_thread = true; 522 visit_type_bool(v, param, &p->compress_wait_thread, &err); 523 break; 524 case MIGRATION_PARAMETER_DECOMPRESS_THREADS: 525 p->has_decompress_threads = true; 526 visit_type_uint8(v, param, &p->decompress_threads, &err); 527 break; 528 case MIGRATION_PARAMETER_THROTTLE_TRIGGER_THRESHOLD: 529 p->has_throttle_trigger_threshold = true; 530 visit_type_uint8(v, param, &p->throttle_trigger_threshold, &err); 531 break; 532 case MIGRATION_PARAMETER_CPU_THROTTLE_INITIAL: 533 p->has_cpu_throttle_initial = true; 534 visit_type_uint8(v, param, &p->cpu_throttle_initial, &err); 535 break; 536 case MIGRATION_PARAMETER_CPU_THROTTLE_INCREMENT: 537 p->has_cpu_throttle_increment = true; 538 visit_type_uint8(v, param, &p->cpu_throttle_increment, &err); 539 break; 540 case MIGRATION_PARAMETER_CPU_THROTTLE_TAILSLOW: 541 p->has_cpu_throttle_tailslow = true; 542 visit_type_bool(v, param, &p->cpu_throttle_tailslow, &err); 543 break; 544 case MIGRATION_PARAMETER_MAX_CPU_THROTTLE: 545 p->has_max_cpu_throttle = true; 546 visit_type_uint8(v, param, &p->max_cpu_throttle, &err); 547 break; 548 case MIGRATION_PARAMETER_TLS_CREDS: 549 p->tls_creds = g_new0(StrOrNull, 1); 550 p->tls_creds->type = QTYPE_QSTRING; 551 visit_type_str(v, param, &p->tls_creds->u.s, &err); 552 break; 553 case MIGRATION_PARAMETER_TLS_HOSTNAME: 554 p->tls_hostname = g_new0(StrOrNull, 1); 555 p->tls_hostname->type = QTYPE_QSTRING; 556 visit_type_str(v, param, &p->tls_hostname->u.s, &err); 557 break; 558 case MIGRATION_PARAMETER_TLS_AUTHZ: 559 p->tls_authz = g_new0(StrOrNull, 1); 560 p->tls_authz->type = QTYPE_QSTRING; 561 visit_type_str(v, param, &p->tls_authz->u.s, &err); 562 break; 563 case MIGRATION_PARAMETER_MAX_BANDWIDTH: 564 p->has_max_bandwidth = true; 565 /* 566 * Can't use visit_type_size() here, because it 567 * defaults to Bytes rather than Mebibytes. 568 */ 569 ret = qemu_strtosz_MiB(valuestr, NULL, &valuebw); 570 if (ret < 0 || valuebw > INT64_MAX 571 || (size_t)valuebw != valuebw) { 572 error_setg(&err, "Invalid size %s", valuestr); 573 break; 574 } 575 p->max_bandwidth = valuebw; 576 break; 577 case MIGRATION_PARAMETER_DOWNTIME_LIMIT: 578 p->has_downtime_limit = true; 579 visit_type_size(v, param, &p->downtime_limit, &err); 580 break; 581 case MIGRATION_PARAMETER_X_CHECKPOINT_DELAY: 582 p->has_x_checkpoint_delay = true; 583 visit_type_uint32(v, param, &p->x_checkpoint_delay, &err); 584 break; 585 case MIGRATION_PARAMETER_BLOCK_INCREMENTAL: 586 p->has_block_incremental = true; 587 visit_type_bool(v, param, &p->block_incremental, &err); 588 break; 589 case MIGRATION_PARAMETER_MULTIFD_CHANNELS: 590 p->has_multifd_channels = true; 591 visit_type_uint8(v, param, &p->multifd_channels, &err); 592 break; 593 case MIGRATION_PARAMETER_MULTIFD_COMPRESSION: 594 p->has_multifd_compression = true; 595 visit_type_MultiFDCompression(v, param, &p->multifd_compression, 596 &err); 597 break; 598 case MIGRATION_PARAMETER_MULTIFD_ZLIB_LEVEL: 599 p->has_multifd_zlib_level = true; 600 visit_type_uint8(v, param, &p->multifd_zlib_level, &err); 601 break; 602 case MIGRATION_PARAMETER_MULTIFD_ZSTD_LEVEL: 603 p->has_multifd_zstd_level = true; 604 visit_type_uint8(v, param, &p->multifd_zstd_level, &err); 605 break; 606 case MIGRATION_PARAMETER_XBZRLE_CACHE_SIZE: 607 p->has_xbzrle_cache_size = true; 608 if (!visit_type_size(v, param, &cache_size, &err)) { 609 break; 610 } 611 if (cache_size > INT64_MAX || (size_t)cache_size != cache_size) { 612 error_setg(&err, "Invalid size %s", valuestr); 613 break; 614 } 615 p->xbzrle_cache_size = cache_size; 616 break; 617 case MIGRATION_PARAMETER_MAX_POSTCOPY_BANDWIDTH: 618 p->has_max_postcopy_bandwidth = true; 619 visit_type_size(v, param, &p->max_postcopy_bandwidth, &err); 620 break; 621 case MIGRATION_PARAMETER_ANNOUNCE_INITIAL: 622 p->has_announce_initial = true; 623 visit_type_size(v, param, &p->announce_initial, &err); 624 break; 625 case MIGRATION_PARAMETER_ANNOUNCE_MAX: 626 p->has_announce_max = true; 627 visit_type_size(v, param, &p->announce_max, &err); 628 break; 629 case MIGRATION_PARAMETER_ANNOUNCE_ROUNDS: 630 p->has_announce_rounds = true; 631 visit_type_size(v, param, &p->announce_rounds, &err); 632 break; 633 case MIGRATION_PARAMETER_ANNOUNCE_STEP: 634 p->has_announce_step = true; 635 visit_type_size(v, param, &p->announce_step, &err); 636 break; 637 case MIGRATION_PARAMETER_BLOCK_BITMAP_MAPPING: 638 error_setg(&err, "The block-bitmap-mapping parameter can only be set " 639 "through QMP"); 640 break; 641 case MIGRATION_PARAMETER_X_VCPU_DIRTY_LIMIT_PERIOD: 642 p->has_x_vcpu_dirty_limit_period = true; 643 visit_type_size(v, param, &p->x_vcpu_dirty_limit_period, &err); 644 break; 645 case MIGRATION_PARAMETER_VCPU_DIRTY_LIMIT: 646 p->has_vcpu_dirty_limit = true; 647 visit_type_size(v, param, &p->vcpu_dirty_limit, &err); 648 break; 649 default: 650 assert(0); 651 } 652 653 if (err) { 654 goto cleanup; 655 } 656 657 qmp_migrate_set_parameters(p, &err); 658 659 cleanup: 660 qapi_free_MigrateSetParameters(p); 661 visit_free(v); 662 hmp_handle_error(mon, err); 663 } 664 665 void hmp_migrate_start_postcopy(Monitor *mon, const QDict *qdict) 666 { 667 Error *err = NULL; 668 qmp_migrate_start_postcopy(&err); 669 hmp_handle_error(mon, err); 670 } 671 672 #ifdef CONFIG_REPLICATION 673 void hmp_x_colo_lost_heartbeat(Monitor *mon, const QDict *qdict) 674 { 675 Error *err = NULL; 676 677 qmp_x_colo_lost_heartbeat(&err); 678 hmp_handle_error(mon, err); 679 } 680 #endif 681 682 typedef struct HMPMigrationStatus { 683 QEMUTimer *timer; 684 Monitor *mon; 685 bool is_block_migration; 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 if (info->disk) { 697 int progress; 698 699 if (info->disk->remaining) { 700 progress = info->disk->transferred * 100 / info->disk->total; 701 } else { 702 progress = 100; 703 } 704 705 monitor_printf(status->mon, "Completed %d %%\r", progress); 706 monitor_flush(status->mon); 707 } 708 709 timer_mod(status->timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1000); 710 } else { 711 if (status->is_block_migration) { 712 monitor_printf(status->mon, "\n"); 713 } 714 if (info->error_desc) { 715 error_report("%s", info->error_desc); 716 } 717 monitor_resume(status->mon); 718 timer_free(status->timer); 719 g_free(status); 720 } 721 722 qapi_free_MigrationInfo(info); 723 } 724 725 void hmp_migrate(Monitor *mon, const QDict *qdict) 726 { 727 bool detach = qdict_get_try_bool(qdict, "detach", false); 728 bool blk = qdict_get_try_bool(qdict, "blk", false); 729 bool inc = qdict_get_try_bool(qdict, "inc", false); 730 bool resume = qdict_get_try_bool(qdict, "resume", false); 731 const char *uri = qdict_get_str(qdict, "uri"); 732 Error *err = NULL; 733 734 qmp_migrate(uri, !!blk, blk, !!inc, inc, 735 false, false, true, resume, &err); 736 if (hmp_handle_error(mon, err)) { 737 return; 738 } 739 740 if (!detach) { 741 HMPMigrationStatus *status; 742 743 if (monitor_suspend(mon) < 0) { 744 monitor_printf(mon, "terminal does not allow synchronous " 745 "migration, continuing detached\n"); 746 return; 747 } 748 749 status = g_malloc0(sizeof(*status)); 750 status->mon = mon; 751 status->is_block_migration = blk || inc; 752 status->timer = timer_new_ms(QEMU_CLOCK_REALTIME, hmp_migrate_status_cb, 753 status); 754 timer_mod(status->timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME)); 755 } 756 } 757 758 void migrate_set_capability_completion(ReadLineState *rs, int nb_args, 759 const char *str) 760 { 761 size_t len; 762 763 len = strlen(str); 764 readline_set_completion_index(rs, len); 765 if (nb_args == 2) { 766 int i; 767 for (i = 0; i < MIGRATION_CAPABILITY__MAX; i++) { 768 readline_add_completion_of(rs, str, MigrationCapability_str(i)); 769 } 770 } else if (nb_args == 3) { 771 readline_add_completion_of(rs, str, "on"); 772 readline_add_completion_of(rs, str, "off"); 773 } 774 } 775 776 void migrate_set_parameter_completion(ReadLineState *rs, int nb_args, 777 const char *str) 778 { 779 size_t len; 780 781 len = strlen(str); 782 readline_set_completion_index(rs, len); 783 if (nb_args == 2) { 784 int i; 785 for (i = 0; i < MIGRATION_PARAMETER__MAX; i++) { 786 readline_add_completion_of(rs, str, MigrationParameter_str(i)); 787 } 788 } 789 } 790 791 static void vm_completion(ReadLineState *rs, const char *str) 792 { 793 size_t len; 794 BlockDriverState *bs; 795 BdrvNextIterator it; 796 797 len = strlen(str); 798 readline_set_completion_index(rs, len); 799 800 for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) { 801 SnapshotInfoList *snapshots, *snapshot; 802 AioContext *ctx = bdrv_get_aio_context(bs); 803 bool ok = false; 804 805 aio_context_acquire(ctx); 806 if (bdrv_can_snapshot(bs)) { 807 ok = bdrv_query_snapshot_info_list(bs, &snapshots, NULL) == 0; 808 } 809 aio_context_release(ctx); 810 if (!ok) { 811 continue; 812 } 813 814 snapshot = snapshots; 815 while (snapshot) { 816 readline_add_completion_of(rs, str, snapshot->value->name); 817 readline_add_completion_of(rs, str, snapshot->value->id); 818 snapshot = snapshot->next; 819 } 820 qapi_free_SnapshotInfoList(snapshots); 821 } 822 823 } 824 825 void delvm_completion(ReadLineState *rs, int nb_args, const char *str) 826 { 827 if (nb_args == 2) { 828 vm_completion(rs, str); 829 } 830 } 831 832 void loadvm_completion(ReadLineState *rs, int nb_args, const char *str) 833 { 834 if (nb_args == 2) { 835 vm_completion(rs, str); 836 } 837 } 838