1 /* 2 * QEMU Machine 3 * 4 * Copyright (C) 2014 Red Hat Inc 5 * 6 * Authors: 7 * Marcel Apfelbaum <marcel.a@redhat.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2 or later. 10 * See the COPYING file in the top-level directory. 11 */ 12 13 #include "qemu/osdep.h" 14 #include "qemu/option.h" 15 #include "qapi/qmp/qerror.h" 16 #include "sysemu/replay.h" 17 #include "qemu/units.h" 18 #include "hw/boards.h" 19 #include "qapi/error.h" 20 #include "qapi/qapi-visit-common.h" 21 #include "qapi/visitor.h" 22 #include "hw/sysbus.h" 23 #include "sysemu/sysemu.h" 24 #include "sysemu/numa.h" 25 #include "qemu/error-report.h" 26 #include "sysemu/qtest.h" 27 #include "hw/pci/pci.h" 28 #include "hw/mem/nvdimm.h" 29 30 GlobalProperty hw_compat_4_2[] = { 31 { "virtio-blk-device", "x-enable-wce-if-config-wce", "off" }, 32 }; 33 const size_t hw_compat_4_2_len = G_N_ELEMENTS(hw_compat_4_2); 34 35 GlobalProperty hw_compat_4_1[] = { 36 { "virtio-pci", "x-pcie-flr-init", "off" }, 37 { "virtio-device", "use-disabled-flag", "false" }, 38 }; 39 const size_t hw_compat_4_1_len = G_N_ELEMENTS(hw_compat_4_1); 40 41 GlobalProperty hw_compat_4_0[] = { 42 { "VGA", "edid", "false" }, 43 { "secondary-vga", "edid", "false" }, 44 { "bochs-display", "edid", "false" }, 45 { "virtio-vga", "edid", "false" }, 46 { "virtio-gpu", "edid", "false" }, 47 { "virtio-device", "use-started", "false" }, 48 { "virtio-balloon-device", "qemu-4-0-config-size", "true" }, 49 { "pl031", "migrate-tick-offset", "false" }, 50 }; 51 const size_t hw_compat_4_0_len = G_N_ELEMENTS(hw_compat_4_0); 52 53 GlobalProperty hw_compat_3_1[] = { 54 { "pcie-root-port", "x-speed", "2_5" }, 55 { "pcie-root-port", "x-width", "1" }, 56 { "memory-backend-file", "x-use-canonical-path-for-ramblock-id", "true" }, 57 { "memory-backend-memfd", "x-use-canonical-path-for-ramblock-id", "true" }, 58 { "tpm-crb", "ppi", "false" }, 59 { "tpm-tis", "ppi", "false" }, 60 { "usb-kbd", "serial", "42" }, 61 { "usb-mouse", "serial", "42" }, 62 { "usb-tablet", "serial", "42" }, 63 { "virtio-blk-device", "discard", "false" }, 64 { "virtio-blk-device", "write-zeroes", "false" }, 65 { "virtio-balloon-device", "qemu-4-0-config-size", "false" }, 66 { "pcie-root-port-base", "disable-acs", "true" }, /* Added in 4.1 */ 67 }; 68 const size_t hw_compat_3_1_len = G_N_ELEMENTS(hw_compat_3_1); 69 70 GlobalProperty hw_compat_3_0[] = {}; 71 const size_t hw_compat_3_0_len = G_N_ELEMENTS(hw_compat_3_0); 72 73 GlobalProperty hw_compat_2_12[] = { 74 { "migration", "decompress-error-check", "off" }, 75 { "hda-audio", "use-timer", "false" }, 76 { "cirrus-vga", "global-vmstate", "true" }, 77 { "VGA", "global-vmstate", "true" }, 78 { "vmware-svga", "global-vmstate", "true" }, 79 { "qxl-vga", "global-vmstate", "true" }, 80 }; 81 const size_t hw_compat_2_12_len = G_N_ELEMENTS(hw_compat_2_12); 82 83 GlobalProperty hw_compat_2_11[] = { 84 { "hpet", "hpet-offset-saved", "false" }, 85 { "virtio-blk-pci", "vectors", "2" }, 86 { "vhost-user-blk-pci", "vectors", "2" }, 87 { "e1000", "migrate_tso_props", "off" }, 88 }; 89 const size_t hw_compat_2_11_len = G_N_ELEMENTS(hw_compat_2_11); 90 91 GlobalProperty hw_compat_2_10[] = { 92 { "virtio-mouse-device", "wheel-axis", "false" }, 93 { "virtio-tablet-device", "wheel-axis", "false" }, 94 }; 95 const size_t hw_compat_2_10_len = G_N_ELEMENTS(hw_compat_2_10); 96 97 GlobalProperty hw_compat_2_9[] = { 98 { "pci-bridge", "shpc", "off" }, 99 { "intel-iommu", "pt", "off" }, 100 { "virtio-net-device", "x-mtu-bypass-backend", "off" }, 101 { "pcie-root-port", "x-migrate-msix", "false" }, 102 }; 103 const size_t hw_compat_2_9_len = G_N_ELEMENTS(hw_compat_2_9); 104 105 GlobalProperty hw_compat_2_8[] = { 106 { "fw_cfg_mem", "x-file-slots", "0x10" }, 107 { "fw_cfg_io", "x-file-slots", "0x10" }, 108 { "pflash_cfi01", "old-multiple-chip-handling", "on" }, 109 { "pci-bridge", "shpc", "on" }, 110 { TYPE_PCI_DEVICE, "x-pcie-extcap-init", "off" }, 111 { "virtio-pci", "x-pcie-deverr-init", "off" }, 112 { "virtio-pci", "x-pcie-lnkctl-init", "off" }, 113 { "virtio-pci", "x-pcie-pm-init", "off" }, 114 { "cirrus-vga", "vgamem_mb", "8" }, 115 { "isa-cirrus-vga", "vgamem_mb", "8" }, 116 }; 117 const size_t hw_compat_2_8_len = G_N_ELEMENTS(hw_compat_2_8); 118 119 GlobalProperty hw_compat_2_7[] = { 120 { "virtio-pci", "page-per-vq", "on" }, 121 { "virtio-serial-device", "emergency-write", "off" }, 122 { "ioapic", "version", "0x11" }, 123 { "intel-iommu", "x-buggy-eim", "true" }, 124 { "virtio-pci", "x-ignore-backend-features", "on" }, 125 }; 126 const size_t hw_compat_2_7_len = G_N_ELEMENTS(hw_compat_2_7); 127 128 GlobalProperty hw_compat_2_6[] = { 129 { "virtio-mmio", "format_transport_address", "off" }, 130 /* Optional because not all virtio-pci devices support legacy mode */ 131 { "virtio-pci", "disable-modern", "on", .optional = true }, 132 { "virtio-pci", "disable-legacy", "off", .optional = true }, 133 }; 134 const size_t hw_compat_2_6_len = G_N_ELEMENTS(hw_compat_2_6); 135 136 GlobalProperty hw_compat_2_5[] = { 137 { "isa-fdc", "fallback", "144" }, 138 { "pvscsi", "x-old-pci-configuration", "on" }, 139 { "pvscsi", "x-disable-pcie", "on" }, 140 { "vmxnet3", "x-old-msi-offsets", "on" }, 141 { "vmxnet3", "x-disable-pcie", "on" }, 142 }; 143 const size_t hw_compat_2_5_len = G_N_ELEMENTS(hw_compat_2_5); 144 145 GlobalProperty hw_compat_2_4[] = { 146 { "virtio-blk-device", "scsi", "true" }, 147 { "e1000", "extra_mac_registers", "off" }, 148 { "virtio-pci", "x-disable-pcie", "on" }, 149 { "virtio-pci", "migrate-extra", "off" }, 150 { "fw_cfg_mem", "dma_enabled", "off" }, 151 { "fw_cfg_io", "dma_enabled", "off" } 152 }; 153 const size_t hw_compat_2_4_len = G_N_ELEMENTS(hw_compat_2_4); 154 155 GlobalProperty hw_compat_2_3[] = { 156 { "virtio-blk-pci", "any_layout", "off" }, 157 { "virtio-balloon-pci", "any_layout", "off" }, 158 { "virtio-serial-pci", "any_layout", "off" }, 159 { "virtio-9p-pci", "any_layout", "off" }, 160 { "virtio-rng-pci", "any_layout", "off" }, 161 { TYPE_PCI_DEVICE, "x-pcie-lnksta-dllla", "off" }, 162 { "migration", "send-configuration", "off" }, 163 { "migration", "send-section-footer", "off" }, 164 { "migration", "store-global-state", "off" }, 165 }; 166 const size_t hw_compat_2_3_len = G_N_ELEMENTS(hw_compat_2_3); 167 168 GlobalProperty hw_compat_2_2[] = {}; 169 const size_t hw_compat_2_2_len = G_N_ELEMENTS(hw_compat_2_2); 170 171 GlobalProperty hw_compat_2_1[] = { 172 { "intel-hda", "old_msi_addr", "on" }, 173 { "VGA", "qemu-extended-regs", "off" }, 174 { "secondary-vga", "qemu-extended-regs", "off" }, 175 { "virtio-scsi-pci", "any_layout", "off" }, 176 { "usb-mouse", "usb_version", "1" }, 177 { "usb-kbd", "usb_version", "1" }, 178 { "virtio-pci", "virtio-pci-bus-master-bug-migration", "on" }, 179 }; 180 const size_t hw_compat_2_1_len = G_N_ELEMENTS(hw_compat_2_1); 181 182 static char *machine_get_kernel(Object *obj, Error **errp) 183 { 184 MachineState *ms = MACHINE(obj); 185 186 return g_strdup(ms->kernel_filename); 187 } 188 189 static void machine_set_kernel(Object *obj, const char *value, Error **errp) 190 { 191 MachineState *ms = MACHINE(obj); 192 193 g_free(ms->kernel_filename); 194 ms->kernel_filename = g_strdup(value); 195 } 196 197 static char *machine_get_initrd(Object *obj, Error **errp) 198 { 199 MachineState *ms = MACHINE(obj); 200 201 return g_strdup(ms->initrd_filename); 202 } 203 204 static void machine_set_initrd(Object *obj, const char *value, Error **errp) 205 { 206 MachineState *ms = MACHINE(obj); 207 208 g_free(ms->initrd_filename); 209 ms->initrd_filename = g_strdup(value); 210 } 211 212 static char *machine_get_append(Object *obj, Error **errp) 213 { 214 MachineState *ms = MACHINE(obj); 215 216 return g_strdup(ms->kernel_cmdline); 217 } 218 219 static void machine_set_append(Object *obj, const char *value, Error **errp) 220 { 221 MachineState *ms = MACHINE(obj); 222 223 g_free(ms->kernel_cmdline); 224 ms->kernel_cmdline = g_strdup(value); 225 } 226 227 static char *machine_get_dtb(Object *obj, Error **errp) 228 { 229 MachineState *ms = MACHINE(obj); 230 231 return g_strdup(ms->dtb); 232 } 233 234 static void machine_set_dtb(Object *obj, const char *value, Error **errp) 235 { 236 MachineState *ms = MACHINE(obj); 237 238 g_free(ms->dtb); 239 ms->dtb = g_strdup(value); 240 } 241 242 static char *machine_get_dumpdtb(Object *obj, Error **errp) 243 { 244 MachineState *ms = MACHINE(obj); 245 246 return g_strdup(ms->dumpdtb); 247 } 248 249 static void machine_set_dumpdtb(Object *obj, const char *value, Error **errp) 250 { 251 MachineState *ms = MACHINE(obj); 252 253 g_free(ms->dumpdtb); 254 ms->dumpdtb = g_strdup(value); 255 } 256 257 static void machine_get_phandle_start(Object *obj, Visitor *v, 258 const char *name, void *opaque, 259 Error **errp) 260 { 261 MachineState *ms = MACHINE(obj); 262 int64_t value = ms->phandle_start; 263 264 visit_type_int(v, name, &value, errp); 265 } 266 267 static void machine_set_phandle_start(Object *obj, Visitor *v, 268 const char *name, void *opaque, 269 Error **errp) 270 { 271 MachineState *ms = MACHINE(obj); 272 Error *error = NULL; 273 int64_t value; 274 275 visit_type_int(v, name, &value, &error); 276 if (error) { 277 error_propagate(errp, error); 278 return; 279 } 280 281 ms->phandle_start = value; 282 } 283 284 static char *machine_get_dt_compatible(Object *obj, Error **errp) 285 { 286 MachineState *ms = MACHINE(obj); 287 288 return g_strdup(ms->dt_compatible); 289 } 290 291 static void machine_set_dt_compatible(Object *obj, const char *value, Error **errp) 292 { 293 MachineState *ms = MACHINE(obj); 294 295 g_free(ms->dt_compatible); 296 ms->dt_compatible = g_strdup(value); 297 } 298 299 static bool machine_get_dump_guest_core(Object *obj, Error **errp) 300 { 301 MachineState *ms = MACHINE(obj); 302 303 return ms->dump_guest_core; 304 } 305 306 static void machine_set_dump_guest_core(Object *obj, bool value, Error **errp) 307 { 308 MachineState *ms = MACHINE(obj); 309 310 ms->dump_guest_core = value; 311 } 312 313 static bool machine_get_mem_merge(Object *obj, Error **errp) 314 { 315 MachineState *ms = MACHINE(obj); 316 317 return ms->mem_merge; 318 } 319 320 static void machine_set_mem_merge(Object *obj, bool value, Error **errp) 321 { 322 MachineState *ms = MACHINE(obj); 323 324 ms->mem_merge = value; 325 } 326 327 static bool machine_get_usb(Object *obj, Error **errp) 328 { 329 MachineState *ms = MACHINE(obj); 330 331 return ms->usb; 332 } 333 334 static void machine_set_usb(Object *obj, bool value, Error **errp) 335 { 336 MachineState *ms = MACHINE(obj); 337 338 ms->usb = value; 339 ms->usb_disabled = !value; 340 } 341 342 static bool machine_get_graphics(Object *obj, Error **errp) 343 { 344 MachineState *ms = MACHINE(obj); 345 346 return ms->enable_graphics; 347 } 348 349 static void machine_set_graphics(Object *obj, bool value, Error **errp) 350 { 351 MachineState *ms = MACHINE(obj); 352 353 ms->enable_graphics = value; 354 } 355 356 static char *machine_get_firmware(Object *obj, Error **errp) 357 { 358 MachineState *ms = MACHINE(obj); 359 360 return g_strdup(ms->firmware); 361 } 362 363 static void machine_set_firmware(Object *obj, const char *value, Error **errp) 364 { 365 MachineState *ms = MACHINE(obj); 366 367 g_free(ms->firmware); 368 ms->firmware = g_strdup(value); 369 } 370 371 static void machine_set_suppress_vmdesc(Object *obj, bool value, Error **errp) 372 { 373 MachineState *ms = MACHINE(obj); 374 375 ms->suppress_vmdesc = value; 376 } 377 378 static bool machine_get_suppress_vmdesc(Object *obj, Error **errp) 379 { 380 MachineState *ms = MACHINE(obj); 381 382 return ms->suppress_vmdesc; 383 } 384 385 static void machine_set_enforce_config_section(Object *obj, bool value, 386 Error **errp) 387 { 388 MachineState *ms = MACHINE(obj); 389 390 warn_report("enforce-config-section is deprecated, please use " 391 "-global migration.send-configuration=on|off instead"); 392 393 ms->enforce_config_section = value; 394 } 395 396 static bool machine_get_enforce_config_section(Object *obj, Error **errp) 397 { 398 MachineState *ms = MACHINE(obj); 399 400 return ms->enforce_config_section; 401 } 402 403 static char *machine_get_memory_encryption(Object *obj, Error **errp) 404 { 405 MachineState *ms = MACHINE(obj); 406 407 return g_strdup(ms->memory_encryption); 408 } 409 410 static void machine_set_memory_encryption(Object *obj, const char *value, 411 Error **errp) 412 { 413 MachineState *ms = MACHINE(obj); 414 415 g_free(ms->memory_encryption); 416 ms->memory_encryption = g_strdup(value); 417 } 418 419 static bool machine_get_nvdimm(Object *obj, Error **errp) 420 { 421 MachineState *ms = MACHINE(obj); 422 423 return ms->nvdimms_state->is_enabled; 424 } 425 426 static void machine_set_nvdimm(Object *obj, bool value, Error **errp) 427 { 428 MachineState *ms = MACHINE(obj); 429 430 ms->nvdimms_state->is_enabled = value; 431 } 432 433 static char *machine_get_nvdimm_persistence(Object *obj, Error **errp) 434 { 435 MachineState *ms = MACHINE(obj); 436 437 return g_strdup(ms->nvdimms_state->persistence_string); 438 } 439 440 static void machine_set_nvdimm_persistence(Object *obj, const char *value, 441 Error **errp) 442 { 443 MachineState *ms = MACHINE(obj); 444 NVDIMMState *nvdimms_state = ms->nvdimms_state; 445 446 if (strcmp(value, "cpu") == 0) { 447 nvdimms_state->persistence = 3; 448 } else if (strcmp(value, "mem-ctrl") == 0) { 449 nvdimms_state->persistence = 2; 450 } else { 451 error_setg(errp, "-machine nvdimm-persistence=%s: unsupported option", 452 value); 453 return; 454 } 455 456 g_free(nvdimms_state->persistence_string); 457 nvdimms_state->persistence_string = g_strdup(value); 458 } 459 460 void machine_class_allow_dynamic_sysbus_dev(MachineClass *mc, const char *type) 461 { 462 strList *item = g_new0(strList, 1); 463 464 item->value = g_strdup(type); 465 item->next = mc->allowed_dynamic_sysbus_devices; 466 mc->allowed_dynamic_sysbus_devices = item; 467 } 468 469 static void validate_sysbus_device(SysBusDevice *sbdev, void *opaque) 470 { 471 MachineState *machine = opaque; 472 MachineClass *mc = MACHINE_GET_CLASS(machine); 473 bool allowed = false; 474 strList *wl; 475 476 for (wl = mc->allowed_dynamic_sysbus_devices; 477 !allowed && wl; 478 wl = wl->next) { 479 allowed |= !!object_dynamic_cast(OBJECT(sbdev), wl->value); 480 } 481 482 if (!allowed) { 483 error_report("Option '-device %s' cannot be handled by this machine", 484 object_class_get_name(object_get_class(OBJECT(sbdev)))); 485 exit(1); 486 } 487 } 488 489 static void machine_init_notify(Notifier *notifier, void *data) 490 { 491 MachineState *machine = MACHINE(qdev_get_machine()); 492 493 /* 494 * Loop through all dynamically created sysbus devices and check if they are 495 * all allowed. If a device is not allowed, error out. 496 */ 497 foreach_dynamic_sysbus_device(validate_sysbus_device, machine); 498 } 499 500 HotpluggableCPUList *machine_query_hotpluggable_cpus(MachineState *machine) 501 { 502 int i; 503 HotpluggableCPUList *head = NULL; 504 MachineClass *mc = MACHINE_GET_CLASS(machine); 505 506 /* force board to initialize possible_cpus if it hasn't been done yet */ 507 mc->possible_cpu_arch_ids(machine); 508 509 for (i = 0; i < machine->possible_cpus->len; i++) { 510 Object *cpu; 511 HotpluggableCPUList *list_item = g_new0(typeof(*list_item), 1); 512 HotpluggableCPU *cpu_item = g_new0(typeof(*cpu_item), 1); 513 514 cpu_item->type = g_strdup(machine->possible_cpus->cpus[i].type); 515 cpu_item->vcpus_count = machine->possible_cpus->cpus[i].vcpus_count; 516 cpu_item->props = g_memdup(&machine->possible_cpus->cpus[i].props, 517 sizeof(*cpu_item->props)); 518 519 cpu = machine->possible_cpus->cpus[i].cpu; 520 if (cpu) { 521 cpu_item->has_qom_path = true; 522 cpu_item->qom_path = object_get_canonical_path(cpu); 523 } 524 list_item->value = cpu_item; 525 list_item->next = head; 526 head = list_item; 527 } 528 return head; 529 } 530 531 /** 532 * machine_set_cpu_numa_node: 533 * @machine: machine object to modify 534 * @props: specifies which cpu objects to assign to 535 * numa node specified by @props.node_id 536 * @errp: if an error occurs, a pointer to an area to store the error 537 * 538 * Associate NUMA node specified by @props.node_id with cpu slots that 539 * match socket/core/thread-ids specified by @props. It's recommended to use 540 * query-hotpluggable-cpus.props values to specify affected cpu slots, 541 * which would lead to exact 1:1 mapping of cpu slots to NUMA node. 542 * 543 * However for CLI convenience it's possible to pass in subset of properties, 544 * which would affect all cpu slots that match it. 545 * Ex for pc machine: 546 * -smp 4,cores=2,sockets=2 -numa node,nodeid=0 -numa node,nodeid=1 \ 547 * -numa cpu,node-id=0,socket_id=0 \ 548 * -numa cpu,node-id=1,socket_id=1 549 * will assign all child cores of socket 0 to node 0 and 550 * of socket 1 to node 1. 551 * 552 * On attempt of reassigning (already assigned) cpu slot to another NUMA node, 553 * return error. 554 * Empty subset is disallowed and function will return with error in this case. 555 */ 556 void machine_set_cpu_numa_node(MachineState *machine, 557 const CpuInstanceProperties *props, Error **errp) 558 { 559 MachineClass *mc = MACHINE_GET_CLASS(machine); 560 bool match = false; 561 int i; 562 563 if (!mc->possible_cpu_arch_ids) { 564 error_setg(errp, "mapping of CPUs to NUMA node is not supported"); 565 return; 566 } 567 568 /* disabling node mapping is not supported, forbid it */ 569 assert(props->has_node_id); 570 571 /* force board to initialize possible_cpus if it hasn't been done yet */ 572 mc->possible_cpu_arch_ids(machine); 573 574 for (i = 0; i < machine->possible_cpus->len; i++) { 575 CPUArchId *slot = &machine->possible_cpus->cpus[i]; 576 577 /* reject unsupported by board properties */ 578 if (props->has_thread_id && !slot->props.has_thread_id) { 579 error_setg(errp, "thread-id is not supported"); 580 return; 581 } 582 583 if (props->has_core_id && !slot->props.has_core_id) { 584 error_setg(errp, "core-id is not supported"); 585 return; 586 } 587 588 if (props->has_socket_id && !slot->props.has_socket_id) { 589 error_setg(errp, "socket-id is not supported"); 590 return; 591 } 592 593 if (props->has_die_id && !slot->props.has_die_id) { 594 error_setg(errp, "die-id is not supported"); 595 return; 596 } 597 598 /* skip slots with explicit mismatch */ 599 if (props->has_thread_id && props->thread_id != slot->props.thread_id) { 600 continue; 601 } 602 603 if (props->has_core_id && props->core_id != slot->props.core_id) { 604 continue; 605 } 606 607 if (props->has_die_id && props->die_id != slot->props.die_id) { 608 continue; 609 } 610 611 if (props->has_socket_id && props->socket_id != slot->props.socket_id) { 612 continue; 613 } 614 615 /* reject assignment if slot is already assigned, for compatibility 616 * of legacy cpu_index mapping with SPAPR core based mapping do not 617 * error out if cpu thread and matched core have the same node-id */ 618 if (slot->props.has_node_id && 619 slot->props.node_id != props->node_id) { 620 error_setg(errp, "CPU is already assigned to node-id: %" PRId64, 621 slot->props.node_id); 622 return; 623 } 624 625 /* assign slot to node as it's matched '-numa cpu' key */ 626 match = true; 627 slot->props.node_id = props->node_id; 628 slot->props.has_node_id = props->has_node_id; 629 } 630 631 if (!match) { 632 error_setg(errp, "no match found"); 633 } 634 } 635 636 static void smp_parse(MachineState *ms, QemuOpts *opts) 637 { 638 if (opts) { 639 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0); 640 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0); 641 unsigned cores = qemu_opt_get_number(opts, "cores", 0); 642 unsigned threads = qemu_opt_get_number(opts, "threads", 0); 643 644 /* compute missing values, prefer sockets over cores over threads */ 645 if (cpus == 0 || sockets == 0) { 646 cores = cores > 0 ? cores : 1; 647 threads = threads > 0 ? threads : 1; 648 if (cpus == 0) { 649 sockets = sockets > 0 ? sockets : 1; 650 cpus = cores * threads * sockets; 651 } else { 652 ms->smp.max_cpus = 653 qemu_opt_get_number(opts, "maxcpus", cpus); 654 sockets = ms->smp.max_cpus / (cores * threads); 655 } 656 } else if (cores == 0) { 657 threads = threads > 0 ? threads : 1; 658 cores = cpus / (sockets * threads); 659 cores = cores > 0 ? cores : 1; 660 } else if (threads == 0) { 661 threads = cpus / (cores * sockets); 662 threads = threads > 0 ? threads : 1; 663 } else if (sockets * cores * threads < cpus) { 664 error_report("cpu topology: " 665 "sockets (%u) * cores (%u) * threads (%u) < " 666 "smp_cpus (%u)", 667 sockets, cores, threads, cpus); 668 exit(1); 669 } 670 671 ms->smp.max_cpus = 672 qemu_opt_get_number(opts, "maxcpus", cpus); 673 674 if (ms->smp.max_cpus < cpus) { 675 error_report("maxcpus must be equal to or greater than smp"); 676 exit(1); 677 } 678 679 if (sockets * cores * threads > ms->smp.max_cpus) { 680 error_report("cpu topology: " 681 "sockets (%u) * cores (%u) * threads (%u) > " 682 "maxcpus (%u)", 683 sockets, cores, threads, 684 ms->smp.max_cpus); 685 exit(1); 686 } 687 688 if (sockets * cores * threads != ms->smp.max_cpus) { 689 warn_report("Invalid CPU topology deprecated: " 690 "sockets (%u) * cores (%u) * threads (%u) " 691 "!= maxcpus (%u)", 692 sockets, cores, threads, 693 ms->smp.max_cpus); 694 } 695 696 ms->smp.cpus = cpus; 697 ms->smp.cores = cores; 698 ms->smp.threads = threads; 699 } 700 701 if (ms->smp.cpus > 1) { 702 Error *blocker = NULL; 703 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp"); 704 replay_add_blocker(blocker); 705 } 706 } 707 708 static void machine_class_init(ObjectClass *oc, void *data) 709 { 710 MachineClass *mc = MACHINE_CLASS(oc); 711 712 /* Default 128 MB as guest ram size */ 713 mc->default_ram_size = 128 * MiB; 714 mc->rom_file_has_mr = true; 715 mc->smp_parse = smp_parse; 716 717 /* numa node memory size aligned on 8MB by default. 718 * On Linux, each node's border has to be 8MB aligned 719 */ 720 mc->numa_mem_align_shift = 23; 721 mc->numa_auto_assign_ram = numa_default_auto_assign_ram; 722 723 object_class_property_add_str(oc, "kernel", 724 machine_get_kernel, machine_set_kernel, &error_abort); 725 object_class_property_set_description(oc, "kernel", 726 "Linux kernel image file", &error_abort); 727 728 object_class_property_add_str(oc, "initrd", 729 machine_get_initrd, machine_set_initrd, &error_abort); 730 object_class_property_set_description(oc, "initrd", 731 "Linux initial ramdisk file", &error_abort); 732 733 object_class_property_add_str(oc, "append", 734 machine_get_append, machine_set_append, &error_abort); 735 object_class_property_set_description(oc, "append", 736 "Linux kernel command line", &error_abort); 737 738 object_class_property_add_str(oc, "dtb", 739 machine_get_dtb, machine_set_dtb, &error_abort); 740 object_class_property_set_description(oc, "dtb", 741 "Linux kernel device tree file", &error_abort); 742 743 object_class_property_add_str(oc, "dumpdtb", 744 machine_get_dumpdtb, machine_set_dumpdtb, &error_abort); 745 object_class_property_set_description(oc, "dumpdtb", 746 "Dump current dtb to a file and quit", &error_abort); 747 748 object_class_property_add(oc, "phandle-start", "int", 749 machine_get_phandle_start, machine_set_phandle_start, 750 NULL, NULL, &error_abort); 751 object_class_property_set_description(oc, "phandle-start", 752 "The first phandle ID we may generate dynamically", &error_abort); 753 754 object_class_property_add_str(oc, "dt-compatible", 755 machine_get_dt_compatible, machine_set_dt_compatible, &error_abort); 756 object_class_property_set_description(oc, "dt-compatible", 757 "Overrides the \"compatible\" property of the dt root node", 758 &error_abort); 759 760 object_class_property_add_bool(oc, "dump-guest-core", 761 machine_get_dump_guest_core, machine_set_dump_guest_core, &error_abort); 762 object_class_property_set_description(oc, "dump-guest-core", 763 "Include guest memory in a core dump", &error_abort); 764 765 object_class_property_add_bool(oc, "mem-merge", 766 machine_get_mem_merge, machine_set_mem_merge, &error_abort); 767 object_class_property_set_description(oc, "mem-merge", 768 "Enable/disable memory merge support", &error_abort); 769 770 object_class_property_add_bool(oc, "usb", 771 machine_get_usb, machine_set_usb, &error_abort); 772 object_class_property_set_description(oc, "usb", 773 "Set on/off to enable/disable usb", &error_abort); 774 775 object_class_property_add_bool(oc, "graphics", 776 machine_get_graphics, machine_set_graphics, &error_abort); 777 object_class_property_set_description(oc, "graphics", 778 "Set on/off to enable/disable graphics emulation", &error_abort); 779 780 object_class_property_add_str(oc, "firmware", 781 machine_get_firmware, machine_set_firmware, 782 &error_abort); 783 object_class_property_set_description(oc, "firmware", 784 "Firmware image", &error_abort); 785 786 object_class_property_add_bool(oc, "suppress-vmdesc", 787 machine_get_suppress_vmdesc, machine_set_suppress_vmdesc, 788 &error_abort); 789 object_class_property_set_description(oc, "suppress-vmdesc", 790 "Set on to disable self-describing migration", &error_abort); 791 792 object_class_property_add_bool(oc, "enforce-config-section", 793 machine_get_enforce_config_section, machine_set_enforce_config_section, 794 &error_abort); 795 object_class_property_set_description(oc, "enforce-config-section", 796 "Set on to enforce configuration section migration", &error_abort); 797 798 object_class_property_add_str(oc, "memory-encryption", 799 machine_get_memory_encryption, machine_set_memory_encryption, 800 &error_abort); 801 object_class_property_set_description(oc, "memory-encryption", 802 "Set memory encryption object to use", &error_abort); 803 } 804 805 static void machine_class_base_init(ObjectClass *oc, void *data) 806 { 807 if (!object_class_is_abstract(oc)) { 808 MachineClass *mc = MACHINE_CLASS(oc); 809 const char *cname = object_class_get_name(oc); 810 assert(g_str_has_suffix(cname, TYPE_MACHINE_SUFFIX)); 811 mc->name = g_strndup(cname, 812 strlen(cname) - strlen(TYPE_MACHINE_SUFFIX)); 813 mc->compat_props = g_ptr_array_new(); 814 } 815 } 816 817 static void machine_initfn(Object *obj) 818 { 819 MachineState *ms = MACHINE(obj); 820 MachineClass *mc = MACHINE_GET_CLASS(obj); 821 822 ms->dump_guest_core = true; 823 ms->mem_merge = true; 824 ms->enable_graphics = true; 825 826 if (mc->nvdimm_supported) { 827 Object *obj = OBJECT(ms); 828 829 ms->nvdimms_state = g_new0(NVDIMMState, 1); 830 object_property_add_bool(obj, "nvdimm", 831 machine_get_nvdimm, machine_set_nvdimm, 832 &error_abort); 833 object_property_set_description(obj, "nvdimm", 834 "Set on/off to enable/disable " 835 "NVDIMM instantiation", NULL); 836 837 object_property_add_str(obj, "nvdimm-persistence", 838 machine_get_nvdimm_persistence, 839 machine_set_nvdimm_persistence, 840 &error_abort); 841 object_property_set_description(obj, "nvdimm-persistence", 842 "Set NVDIMM persistence" 843 "Valid values are cpu, mem-ctrl", 844 NULL); 845 } 846 847 if (mc->numa_mem_supported) { 848 ms->numa_state = g_new0(NumaState, 1); 849 } 850 851 /* Register notifier when init is done for sysbus sanity checks */ 852 ms->sysbus_notifier.notify = machine_init_notify; 853 qemu_add_machine_init_done_notifier(&ms->sysbus_notifier); 854 } 855 856 static void machine_finalize(Object *obj) 857 { 858 MachineState *ms = MACHINE(obj); 859 860 g_free(ms->kernel_filename); 861 g_free(ms->initrd_filename); 862 g_free(ms->kernel_cmdline); 863 g_free(ms->dtb); 864 g_free(ms->dumpdtb); 865 g_free(ms->dt_compatible); 866 g_free(ms->firmware); 867 g_free(ms->device_memory); 868 g_free(ms->nvdimms_state); 869 g_free(ms->numa_state); 870 } 871 872 bool machine_usb(MachineState *machine) 873 { 874 return machine->usb; 875 } 876 877 int machine_phandle_start(MachineState *machine) 878 { 879 return machine->phandle_start; 880 } 881 882 bool machine_dump_guest_core(MachineState *machine) 883 { 884 return machine->dump_guest_core; 885 } 886 887 bool machine_mem_merge(MachineState *machine) 888 { 889 return machine->mem_merge; 890 } 891 892 static char *cpu_slot_to_string(const CPUArchId *cpu) 893 { 894 GString *s = g_string_new(NULL); 895 if (cpu->props.has_socket_id) { 896 g_string_append_printf(s, "socket-id: %"PRId64, cpu->props.socket_id); 897 } 898 if (cpu->props.has_die_id) { 899 g_string_append_printf(s, "die-id: %"PRId64, cpu->props.die_id); 900 } 901 if (cpu->props.has_core_id) { 902 if (s->len) { 903 g_string_append_printf(s, ", "); 904 } 905 g_string_append_printf(s, "core-id: %"PRId64, cpu->props.core_id); 906 } 907 if (cpu->props.has_thread_id) { 908 if (s->len) { 909 g_string_append_printf(s, ", "); 910 } 911 g_string_append_printf(s, "thread-id: %"PRId64, cpu->props.thread_id); 912 } 913 return g_string_free(s, false); 914 } 915 916 static void machine_numa_finish_cpu_init(MachineState *machine) 917 { 918 int i; 919 bool default_mapping; 920 GString *s = g_string_new(NULL); 921 MachineClass *mc = MACHINE_GET_CLASS(machine); 922 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(machine); 923 924 assert(machine->numa_state->num_nodes); 925 for (i = 0; i < possible_cpus->len; i++) { 926 if (possible_cpus->cpus[i].props.has_node_id) { 927 break; 928 } 929 } 930 default_mapping = (i == possible_cpus->len); 931 932 for (i = 0; i < possible_cpus->len; i++) { 933 const CPUArchId *cpu_slot = &possible_cpus->cpus[i]; 934 935 if (!cpu_slot->props.has_node_id) { 936 /* fetch default mapping from board and enable it */ 937 CpuInstanceProperties props = cpu_slot->props; 938 939 props.node_id = mc->get_default_cpu_node_id(machine, i); 940 if (!default_mapping) { 941 /* record slots with not set mapping, 942 * TODO: make it hard error in future */ 943 char *cpu_str = cpu_slot_to_string(cpu_slot); 944 g_string_append_printf(s, "%sCPU %d [%s]", 945 s->len ? ", " : "", i, cpu_str); 946 g_free(cpu_str); 947 948 /* non mapped cpus used to fallback to node 0 */ 949 props.node_id = 0; 950 } 951 952 props.has_node_id = true; 953 machine_set_cpu_numa_node(machine, &props, &error_fatal); 954 } 955 } 956 if (s->len && !qtest_enabled()) { 957 warn_report("CPU(s) not present in any NUMA nodes: %s", 958 s->str); 959 warn_report("All CPU(s) up to maxcpus should be described " 960 "in NUMA config, ability to start up with partial NUMA " 961 "mappings is obsoleted and will be removed in future"); 962 } 963 g_string_free(s, true); 964 } 965 966 void machine_run_board_init(MachineState *machine) 967 { 968 MachineClass *machine_class = MACHINE_GET_CLASS(machine); 969 970 if (machine_class->numa_mem_supported) { 971 numa_complete_configuration(machine); 972 if (machine->numa_state->num_nodes) { 973 machine_numa_finish_cpu_init(machine); 974 } 975 } 976 977 /* If the machine supports the valid_cpu_types check and the user 978 * specified a CPU with -cpu check here that the user CPU is supported. 979 */ 980 if (machine_class->valid_cpu_types && machine->cpu_type) { 981 ObjectClass *class = object_class_by_name(machine->cpu_type); 982 int i; 983 984 for (i = 0; machine_class->valid_cpu_types[i]; i++) { 985 if (object_class_dynamic_cast(class, 986 machine_class->valid_cpu_types[i])) { 987 /* The user specificed CPU is in the valid field, we are 988 * good to go. 989 */ 990 break; 991 } 992 } 993 994 if (!machine_class->valid_cpu_types[i]) { 995 /* The user specified CPU is not valid */ 996 error_report("Invalid CPU type: %s", machine->cpu_type); 997 error_printf("The valid types are: %s", 998 machine_class->valid_cpu_types[0]); 999 for (i = 1; machine_class->valid_cpu_types[i]; i++) { 1000 error_printf(", %s", machine_class->valid_cpu_types[i]); 1001 } 1002 error_printf("\n"); 1003 1004 exit(1); 1005 } 1006 } 1007 1008 machine_class->init(machine); 1009 } 1010 1011 static const TypeInfo machine_info = { 1012 .name = TYPE_MACHINE, 1013 .parent = TYPE_OBJECT, 1014 .abstract = true, 1015 .class_size = sizeof(MachineClass), 1016 .class_init = machine_class_init, 1017 .class_base_init = machine_class_base_init, 1018 .instance_size = sizeof(MachineState), 1019 .instance_init = machine_initfn, 1020 .instance_finalize = machine_finalize, 1021 }; 1022 1023 static void machine_register_types(void) 1024 { 1025 type_register_static(&machine_info); 1026 } 1027 1028 type_init(machine_register_types) 1029