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_0[] = { 31 { "VGA", "edid", "false" }, 32 { "secondary-vga", "edid", "false" }, 33 { "bochs-display", "edid", "false" }, 34 { "virtio-vga", "edid", "false" }, 35 { "virtio-gpu-pci", "edid", "false" }, 36 { "virtio-device", "use-started", "false" }, 37 { "virtio-balloon-device", "qemu-4-0-config-size", "true" }, 38 { "pl031", "migrate-tick-offset", "false" }, 39 }; 40 const size_t hw_compat_4_0_len = G_N_ELEMENTS(hw_compat_4_0); 41 42 GlobalProperty hw_compat_3_1[] = { 43 { "pcie-root-port", "x-speed", "2_5" }, 44 { "pcie-root-port", "x-width", "1" }, 45 { "memory-backend-file", "x-use-canonical-path-for-ramblock-id", "true" }, 46 { "memory-backend-memfd", "x-use-canonical-path-for-ramblock-id", "true" }, 47 { "tpm-crb", "ppi", "false" }, 48 { "tpm-tis", "ppi", "false" }, 49 { "usb-kbd", "serial", "42" }, 50 { "usb-mouse", "serial", "42" }, 51 { "usb-tablet", "serial", "42" }, 52 { "virtio-blk-device", "discard", "false" }, 53 { "virtio-blk-device", "write-zeroes", "false" }, 54 { "virtio-balloon-device", "qemu-4-0-config-size", "false" }, 55 }; 56 const size_t hw_compat_3_1_len = G_N_ELEMENTS(hw_compat_3_1); 57 58 GlobalProperty hw_compat_3_0[] = {}; 59 const size_t hw_compat_3_0_len = G_N_ELEMENTS(hw_compat_3_0); 60 61 GlobalProperty hw_compat_2_12[] = { 62 { "migration", "decompress-error-check", "off" }, 63 { "hda-audio", "use-timer", "false" }, 64 { "cirrus-vga", "global-vmstate", "true" }, 65 { "VGA", "global-vmstate", "true" }, 66 { "vmware-svga", "global-vmstate", "true" }, 67 { "qxl-vga", "global-vmstate", "true" }, 68 }; 69 const size_t hw_compat_2_12_len = G_N_ELEMENTS(hw_compat_2_12); 70 71 GlobalProperty hw_compat_2_11[] = { 72 { "hpet", "hpet-offset-saved", "false" }, 73 { "virtio-blk-pci", "vectors", "2" }, 74 { "vhost-user-blk-pci", "vectors", "2" }, 75 { "e1000", "migrate_tso_props", "off" }, 76 }; 77 const size_t hw_compat_2_11_len = G_N_ELEMENTS(hw_compat_2_11); 78 79 GlobalProperty hw_compat_2_10[] = { 80 { "virtio-mouse-device", "wheel-axis", "false" }, 81 { "virtio-tablet-device", "wheel-axis", "false" }, 82 }; 83 const size_t hw_compat_2_10_len = G_N_ELEMENTS(hw_compat_2_10); 84 85 GlobalProperty hw_compat_2_9[] = { 86 { "pci-bridge", "shpc", "off" }, 87 { "intel-iommu", "pt", "off" }, 88 { "virtio-net-device", "x-mtu-bypass-backend", "off" }, 89 { "pcie-root-port", "x-migrate-msix", "false" }, 90 }; 91 const size_t hw_compat_2_9_len = G_N_ELEMENTS(hw_compat_2_9); 92 93 GlobalProperty hw_compat_2_8[] = { 94 { "fw_cfg_mem", "x-file-slots", "0x10" }, 95 { "fw_cfg_io", "x-file-slots", "0x10" }, 96 { "pflash_cfi01", "old-multiple-chip-handling", "on" }, 97 { "pci-bridge", "shpc", "on" }, 98 { TYPE_PCI_DEVICE, "x-pcie-extcap-init", "off" }, 99 { "virtio-pci", "x-pcie-deverr-init", "off" }, 100 { "virtio-pci", "x-pcie-lnkctl-init", "off" }, 101 { "virtio-pci", "x-pcie-pm-init", "off" }, 102 { "cirrus-vga", "vgamem_mb", "8" }, 103 { "isa-cirrus-vga", "vgamem_mb", "8" }, 104 }; 105 const size_t hw_compat_2_8_len = G_N_ELEMENTS(hw_compat_2_8); 106 107 GlobalProperty hw_compat_2_7[] = { 108 { "virtio-pci", "page-per-vq", "on" }, 109 { "virtio-serial-device", "emergency-write", "off" }, 110 { "ioapic", "version", "0x11" }, 111 { "intel-iommu", "x-buggy-eim", "true" }, 112 { "virtio-pci", "x-ignore-backend-features", "on" }, 113 }; 114 const size_t hw_compat_2_7_len = G_N_ELEMENTS(hw_compat_2_7); 115 116 GlobalProperty hw_compat_2_6[] = { 117 { "virtio-mmio", "format_transport_address", "off" }, 118 /* Optional because not all virtio-pci devices support legacy mode */ 119 { "virtio-pci", "disable-modern", "on", .optional = true }, 120 { "virtio-pci", "disable-legacy", "off", .optional = true }, 121 }; 122 const size_t hw_compat_2_6_len = G_N_ELEMENTS(hw_compat_2_6); 123 124 GlobalProperty hw_compat_2_5[] = { 125 { "isa-fdc", "fallback", "144" }, 126 { "pvscsi", "x-old-pci-configuration", "on" }, 127 { "pvscsi", "x-disable-pcie", "on" }, 128 { "vmxnet3", "x-old-msi-offsets", "on" }, 129 { "vmxnet3", "x-disable-pcie", "on" }, 130 }; 131 const size_t hw_compat_2_5_len = G_N_ELEMENTS(hw_compat_2_5); 132 133 GlobalProperty hw_compat_2_4[] = { 134 { "virtio-blk-device", "scsi", "true" }, 135 { "e1000", "extra_mac_registers", "off" }, 136 { "virtio-pci", "x-disable-pcie", "on" }, 137 { "virtio-pci", "migrate-extra", "off" }, 138 { "fw_cfg_mem", "dma_enabled", "off" }, 139 { "fw_cfg_io", "dma_enabled", "off" } 140 }; 141 const size_t hw_compat_2_4_len = G_N_ELEMENTS(hw_compat_2_4); 142 143 GlobalProperty hw_compat_2_3[] = { 144 { "virtio-blk-pci", "any_layout", "off" }, 145 { "virtio-balloon-pci", "any_layout", "off" }, 146 { "virtio-serial-pci", "any_layout", "off" }, 147 { "virtio-9p-pci", "any_layout", "off" }, 148 { "virtio-rng-pci", "any_layout", "off" }, 149 { TYPE_PCI_DEVICE, "x-pcie-lnksta-dllla", "off" }, 150 { "migration", "send-configuration", "off" }, 151 { "migration", "send-section-footer", "off" }, 152 { "migration", "store-global-state", "off" }, 153 }; 154 const size_t hw_compat_2_3_len = G_N_ELEMENTS(hw_compat_2_3); 155 156 GlobalProperty hw_compat_2_2[] = {}; 157 const size_t hw_compat_2_2_len = G_N_ELEMENTS(hw_compat_2_2); 158 159 GlobalProperty hw_compat_2_1[] = { 160 { "intel-hda", "old_msi_addr", "on" }, 161 { "VGA", "qemu-extended-regs", "off" }, 162 { "secondary-vga", "qemu-extended-regs", "off" }, 163 { "virtio-scsi-pci", "any_layout", "off" }, 164 { "usb-mouse", "usb_version", "1" }, 165 { "usb-kbd", "usb_version", "1" }, 166 { "virtio-pci", "virtio-pci-bus-master-bug-migration", "on" }, 167 }; 168 const size_t hw_compat_2_1_len = G_N_ELEMENTS(hw_compat_2_1); 169 170 static char *machine_get_accel(Object *obj, Error **errp) 171 { 172 MachineState *ms = MACHINE(obj); 173 174 return g_strdup(ms->accel); 175 } 176 177 static void machine_set_accel(Object *obj, const char *value, Error **errp) 178 { 179 MachineState *ms = MACHINE(obj); 180 181 g_free(ms->accel); 182 ms->accel = g_strdup(value); 183 } 184 185 static void machine_set_kernel_irqchip(Object *obj, Visitor *v, 186 const char *name, void *opaque, 187 Error **errp) 188 { 189 Error *err = NULL; 190 MachineState *ms = MACHINE(obj); 191 OnOffSplit mode; 192 193 visit_type_OnOffSplit(v, name, &mode, &err); 194 if (err) { 195 error_propagate(errp, err); 196 return; 197 } else { 198 switch (mode) { 199 case ON_OFF_SPLIT_ON: 200 ms->kernel_irqchip_allowed = true; 201 ms->kernel_irqchip_required = true; 202 ms->kernel_irqchip_split = false; 203 break; 204 case ON_OFF_SPLIT_OFF: 205 ms->kernel_irqchip_allowed = false; 206 ms->kernel_irqchip_required = false; 207 ms->kernel_irqchip_split = false; 208 break; 209 case ON_OFF_SPLIT_SPLIT: 210 ms->kernel_irqchip_allowed = true; 211 ms->kernel_irqchip_required = true; 212 ms->kernel_irqchip_split = true; 213 break; 214 default: 215 /* The value was checked in visit_type_OnOffSplit() above. If 216 * we get here, then something is wrong in QEMU. 217 */ 218 abort(); 219 } 220 } 221 } 222 223 static void machine_get_kvm_shadow_mem(Object *obj, Visitor *v, 224 const char *name, void *opaque, 225 Error **errp) 226 { 227 MachineState *ms = MACHINE(obj); 228 int64_t value = ms->kvm_shadow_mem; 229 230 visit_type_int(v, name, &value, errp); 231 } 232 233 static void machine_set_kvm_shadow_mem(Object *obj, Visitor *v, 234 const char *name, void *opaque, 235 Error **errp) 236 { 237 MachineState *ms = MACHINE(obj); 238 Error *error = NULL; 239 int64_t value; 240 241 visit_type_int(v, name, &value, &error); 242 if (error) { 243 error_propagate(errp, error); 244 return; 245 } 246 247 ms->kvm_shadow_mem = value; 248 } 249 250 static char *machine_get_kernel(Object *obj, Error **errp) 251 { 252 MachineState *ms = MACHINE(obj); 253 254 return g_strdup(ms->kernel_filename); 255 } 256 257 static void machine_set_kernel(Object *obj, const char *value, Error **errp) 258 { 259 MachineState *ms = MACHINE(obj); 260 261 g_free(ms->kernel_filename); 262 ms->kernel_filename = g_strdup(value); 263 } 264 265 static char *machine_get_initrd(Object *obj, Error **errp) 266 { 267 MachineState *ms = MACHINE(obj); 268 269 return g_strdup(ms->initrd_filename); 270 } 271 272 static void machine_set_initrd(Object *obj, const char *value, Error **errp) 273 { 274 MachineState *ms = MACHINE(obj); 275 276 g_free(ms->initrd_filename); 277 ms->initrd_filename = g_strdup(value); 278 } 279 280 static char *machine_get_append(Object *obj, Error **errp) 281 { 282 MachineState *ms = MACHINE(obj); 283 284 return g_strdup(ms->kernel_cmdline); 285 } 286 287 static void machine_set_append(Object *obj, const char *value, Error **errp) 288 { 289 MachineState *ms = MACHINE(obj); 290 291 g_free(ms->kernel_cmdline); 292 ms->kernel_cmdline = g_strdup(value); 293 } 294 295 static char *machine_get_dtb(Object *obj, Error **errp) 296 { 297 MachineState *ms = MACHINE(obj); 298 299 return g_strdup(ms->dtb); 300 } 301 302 static void machine_set_dtb(Object *obj, const char *value, Error **errp) 303 { 304 MachineState *ms = MACHINE(obj); 305 306 g_free(ms->dtb); 307 ms->dtb = g_strdup(value); 308 } 309 310 static char *machine_get_dumpdtb(Object *obj, Error **errp) 311 { 312 MachineState *ms = MACHINE(obj); 313 314 return g_strdup(ms->dumpdtb); 315 } 316 317 static void machine_set_dumpdtb(Object *obj, const char *value, Error **errp) 318 { 319 MachineState *ms = MACHINE(obj); 320 321 g_free(ms->dumpdtb); 322 ms->dumpdtb = g_strdup(value); 323 } 324 325 static void machine_get_phandle_start(Object *obj, Visitor *v, 326 const char *name, void *opaque, 327 Error **errp) 328 { 329 MachineState *ms = MACHINE(obj); 330 int64_t value = ms->phandle_start; 331 332 visit_type_int(v, name, &value, errp); 333 } 334 335 static void machine_set_phandle_start(Object *obj, Visitor *v, 336 const char *name, void *opaque, 337 Error **errp) 338 { 339 MachineState *ms = MACHINE(obj); 340 Error *error = NULL; 341 int64_t value; 342 343 visit_type_int(v, name, &value, &error); 344 if (error) { 345 error_propagate(errp, error); 346 return; 347 } 348 349 ms->phandle_start = value; 350 } 351 352 static char *machine_get_dt_compatible(Object *obj, Error **errp) 353 { 354 MachineState *ms = MACHINE(obj); 355 356 return g_strdup(ms->dt_compatible); 357 } 358 359 static void machine_set_dt_compatible(Object *obj, const char *value, Error **errp) 360 { 361 MachineState *ms = MACHINE(obj); 362 363 g_free(ms->dt_compatible); 364 ms->dt_compatible = g_strdup(value); 365 } 366 367 static bool machine_get_dump_guest_core(Object *obj, Error **errp) 368 { 369 MachineState *ms = MACHINE(obj); 370 371 return ms->dump_guest_core; 372 } 373 374 static void machine_set_dump_guest_core(Object *obj, bool value, Error **errp) 375 { 376 MachineState *ms = MACHINE(obj); 377 378 ms->dump_guest_core = value; 379 } 380 381 static bool machine_get_mem_merge(Object *obj, Error **errp) 382 { 383 MachineState *ms = MACHINE(obj); 384 385 return ms->mem_merge; 386 } 387 388 static void machine_set_mem_merge(Object *obj, bool value, Error **errp) 389 { 390 MachineState *ms = MACHINE(obj); 391 392 ms->mem_merge = value; 393 } 394 395 static bool machine_get_usb(Object *obj, Error **errp) 396 { 397 MachineState *ms = MACHINE(obj); 398 399 return ms->usb; 400 } 401 402 static void machine_set_usb(Object *obj, bool value, Error **errp) 403 { 404 MachineState *ms = MACHINE(obj); 405 406 ms->usb = value; 407 ms->usb_disabled = !value; 408 } 409 410 static bool machine_get_graphics(Object *obj, Error **errp) 411 { 412 MachineState *ms = MACHINE(obj); 413 414 return ms->enable_graphics; 415 } 416 417 static void machine_set_graphics(Object *obj, bool value, Error **errp) 418 { 419 MachineState *ms = MACHINE(obj); 420 421 ms->enable_graphics = value; 422 } 423 424 static bool machine_get_igd_gfx_passthru(Object *obj, Error **errp) 425 { 426 MachineState *ms = MACHINE(obj); 427 428 return ms->igd_gfx_passthru; 429 } 430 431 static void machine_set_igd_gfx_passthru(Object *obj, bool value, Error **errp) 432 { 433 MachineState *ms = MACHINE(obj); 434 435 ms->igd_gfx_passthru = value; 436 } 437 438 static char *machine_get_firmware(Object *obj, Error **errp) 439 { 440 MachineState *ms = MACHINE(obj); 441 442 return g_strdup(ms->firmware); 443 } 444 445 static void machine_set_firmware(Object *obj, const char *value, Error **errp) 446 { 447 MachineState *ms = MACHINE(obj); 448 449 g_free(ms->firmware); 450 ms->firmware = g_strdup(value); 451 } 452 453 static void machine_set_suppress_vmdesc(Object *obj, bool value, Error **errp) 454 { 455 MachineState *ms = MACHINE(obj); 456 457 ms->suppress_vmdesc = value; 458 } 459 460 static bool machine_get_suppress_vmdesc(Object *obj, Error **errp) 461 { 462 MachineState *ms = MACHINE(obj); 463 464 return ms->suppress_vmdesc; 465 } 466 467 static void machine_set_enforce_config_section(Object *obj, bool value, 468 Error **errp) 469 { 470 MachineState *ms = MACHINE(obj); 471 472 warn_report("enforce-config-section is deprecated, please use " 473 "-global migration.send-configuration=on|off instead"); 474 475 ms->enforce_config_section = value; 476 } 477 478 static bool machine_get_enforce_config_section(Object *obj, Error **errp) 479 { 480 MachineState *ms = MACHINE(obj); 481 482 return ms->enforce_config_section; 483 } 484 485 static char *machine_get_memory_encryption(Object *obj, Error **errp) 486 { 487 MachineState *ms = MACHINE(obj); 488 489 return g_strdup(ms->memory_encryption); 490 } 491 492 static void machine_set_memory_encryption(Object *obj, const char *value, 493 Error **errp) 494 { 495 MachineState *ms = MACHINE(obj); 496 497 g_free(ms->memory_encryption); 498 ms->memory_encryption = g_strdup(value); 499 } 500 501 static bool machine_get_nvdimm(Object *obj, Error **errp) 502 { 503 MachineState *ms = MACHINE(obj); 504 505 return ms->nvdimms_state->is_enabled; 506 } 507 508 static void machine_set_nvdimm(Object *obj, bool value, Error **errp) 509 { 510 MachineState *ms = MACHINE(obj); 511 512 ms->nvdimms_state->is_enabled = value; 513 } 514 515 static char *machine_get_nvdimm_persistence(Object *obj, Error **errp) 516 { 517 MachineState *ms = MACHINE(obj); 518 519 return g_strdup(ms->nvdimms_state->persistence_string); 520 } 521 522 static void machine_set_nvdimm_persistence(Object *obj, const char *value, 523 Error **errp) 524 { 525 MachineState *ms = MACHINE(obj); 526 NVDIMMState *nvdimms_state = ms->nvdimms_state; 527 528 if (strcmp(value, "cpu") == 0) { 529 nvdimms_state->persistence = 3; 530 } else if (strcmp(value, "mem-ctrl") == 0) { 531 nvdimms_state->persistence = 2; 532 } else { 533 error_setg(errp, "-machine nvdimm-persistence=%s: unsupported option", 534 value); 535 return; 536 } 537 538 g_free(nvdimms_state->persistence_string); 539 nvdimms_state->persistence_string = g_strdup(value); 540 } 541 542 void machine_class_allow_dynamic_sysbus_dev(MachineClass *mc, const char *type) 543 { 544 strList *item = g_new0(strList, 1); 545 546 item->value = g_strdup(type); 547 item->next = mc->allowed_dynamic_sysbus_devices; 548 mc->allowed_dynamic_sysbus_devices = item; 549 } 550 551 static void validate_sysbus_device(SysBusDevice *sbdev, void *opaque) 552 { 553 MachineState *machine = opaque; 554 MachineClass *mc = MACHINE_GET_CLASS(machine); 555 bool allowed = false; 556 strList *wl; 557 558 for (wl = mc->allowed_dynamic_sysbus_devices; 559 !allowed && wl; 560 wl = wl->next) { 561 allowed |= !!object_dynamic_cast(OBJECT(sbdev), wl->value); 562 } 563 564 if (!allowed) { 565 error_report("Option '-device %s' cannot be handled by this machine", 566 object_class_get_name(object_get_class(OBJECT(sbdev)))); 567 exit(1); 568 } 569 } 570 571 static void machine_init_notify(Notifier *notifier, void *data) 572 { 573 MachineState *machine = MACHINE(qdev_get_machine()); 574 575 /* 576 * Loop through all dynamically created sysbus devices and check if they are 577 * all allowed. If a device is not allowed, error out. 578 */ 579 foreach_dynamic_sysbus_device(validate_sysbus_device, machine); 580 } 581 582 HotpluggableCPUList *machine_query_hotpluggable_cpus(MachineState *machine) 583 { 584 int i; 585 HotpluggableCPUList *head = NULL; 586 MachineClass *mc = MACHINE_GET_CLASS(machine); 587 588 /* force board to initialize possible_cpus if it hasn't been done yet */ 589 mc->possible_cpu_arch_ids(machine); 590 591 for (i = 0; i < machine->possible_cpus->len; i++) { 592 Object *cpu; 593 HotpluggableCPUList *list_item = g_new0(typeof(*list_item), 1); 594 HotpluggableCPU *cpu_item = g_new0(typeof(*cpu_item), 1); 595 596 cpu_item->type = g_strdup(machine->possible_cpus->cpus[i].type); 597 cpu_item->vcpus_count = machine->possible_cpus->cpus[i].vcpus_count; 598 cpu_item->props = g_memdup(&machine->possible_cpus->cpus[i].props, 599 sizeof(*cpu_item->props)); 600 601 cpu = machine->possible_cpus->cpus[i].cpu; 602 if (cpu) { 603 cpu_item->has_qom_path = true; 604 cpu_item->qom_path = object_get_canonical_path(cpu); 605 } 606 list_item->value = cpu_item; 607 list_item->next = head; 608 head = list_item; 609 } 610 return head; 611 } 612 613 /** 614 * machine_set_cpu_numa_node: 615 * @machine: machine object to modify 616 * @props: specifies which cpu objects to assign to 617 * numa node specified by @props.node_id 618 * @errp: if an error occurs, a pointer to an area to store the error 619 * 620 * Associate NUMA node specified by @props.node_id with cpu slots that 621 * match socket/core/thread-ids specified by @props. It's recommended to use 622 * query-hotpluggable-cpus.props values to specify affected cpu slots, 623 * which would lead to exact 1:1 mapping of cpu slots to NUMA node. 624 * 625 * However for CLI convenience it's possible to pass in subset of properties, 626 * which would affect all cpu slots that match it. 627 * Ex for pc machine: 628 * -smp 4,cores=2,sockets=2 -numa node,nodeid=0 -numa node,nodeid=1 \ 629 * -numa cpu,node-id=0,socket_id=0 \ 630 * -numa cpu,node-id=1,socket_id=1 631 * will assign all child cores of socket 0 to node 0 and 632 * of socket 1 to node 1. 633 * 634 * On attempt of reassigning (already assigned) cpu slot to another NUMA node, 635 * return error. 636 * Empty subset is disallowed and function will return with error in this case. 637 */ 638 void machine_set_cpu_numa_node(MachineState *machine, 639 const CpuInstanceProperties *props, Error **errp) 640 { 641 MachineClass *mc = MACHINE_GET_CLASS(machine); 642 bool match = false; 643 int i; 644 645 if (!mc->possible_cpu_arch_ids) { 646 error_setg(errp, "mapping of CPUs to NUMA node is not supported"); 647 return; 648 } 649 650 /* disabling node mapping is not supported, forbid it */ 651 assert(props->has_node_id); 652 653 /* force board to initialize possible_cpus if it hasn't been done yet */ 654 mc->possible_cpu_arch_ids(machine); 655 656 for (i = 0; i < machine->possible_cpus->len; i++) { 657 CPUArchId *slot = &machine->possible_cpus->cpus[i]; 658 659 /* reject unsupported by board properties */ 660 if (props->has_thread_id && !slot->props.has_thread_id) { 661 error_setg(errp, "thread-id is not supported"); 662 return; 663 } 664 665 if (props->has_core_id && !slot->props.has_core_id) { 666 error_setg(errp, "core-id is not supported"); 667 return; 668 } 669 670 if (props->has_socket_id && !slot->props.has_socket_id) { 671 error_setg(errp, "socket-id is not supported"); 672 return; 673 } 674 675 if (props->has_die_id && !slot->props.has_die_id) { 676 error_setg(errp, "die-id is not supported"); 677 return; 678 } 679 680 /* skip slots with explicit mismatch */ 681 if (props->has_thread_id && props->thread_id != slot->props.thread_id) { 682 continue; 683 } 684 685 if (props->has_core_id && props->core_id != slot->props.core_id) { 686 continue; 687 } 688 689 if (props->has_die_id && props->die_id != slot->props.die_id) { 690 continue; 691 } 692 693 if (props->has_socket_id && props->socket_id != slot->props.socket_id) { 694 continue; 695 } 696 697 /* reject assignment if slot is already assigned, for compatibility 698 * of legacy cpu_index mapping with SPAPR core based mapping do not 699 * error out if cpu thread and matched core have the same node-id */ 700 if (slot->props.has_node_id && 701 slot->props.node_id != props->node_id) { 702 error_setg(errp, "CPU is already assigned to node-id: %" PRId64, 703 slot->props.node_id); 704 return; 705 } 706 707 /* assign slot to node as it's matched '-numa cpu' key */ 708 match = true; 709 slot->props.node_id = props->node_id; 710 slot->props.has_node_id = props->has_node_id; 711 } 712 713 if (!match) { 714 error_setg(errp, "no match found"); 715 } 716 } 717 718 static void smp_parse(MachineState *ms, QemuOpts *opts) 719 { 720 if (opts) { 721 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0); 722 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0); 723 unsigned cores = qemu_opt_get_number(opts, "cores", 0); 724 unsigned threads = qemu_opt_get_number(opts, "threads", 0); 725 726 /* compute missing values, prefer sockets over cores over threads */ 727 if (cpus == 0 || sockets == 0) { 728 cores = cores > 0 ? cores : 1; 729 threads = threads > 0 ? threads : 1; 730 if (cpus == 0) { 731 sockets = sockets > 0 ? sockets : 1; 732 cpus = cores * threads * sockets; 733 } else { 734 ms->smp.max_cpus = 735 qemu_opt_get_number(opts, "maxcpus", cpus); 736 sockets = ms->smp.max_cpus / (cores * threads); 737 } 738 } else if (cores == 0) { 739 threads = threads > 0 ? threads : 1; 740 cores = cpus / (sockets * threads); 741 cores = cores > 0 ? cores : 1; 742 } else if (threads == 0) { 743 threads = cpus / (cores * sockets); 744 threads = threads > 0 ? threads : 1; 745 } else if (sockets * cores * threads < cpus) { 746 error_report("cpu topology: " 747 "sockets (%u) * cores (%u) * threads (%u) < " 748 "smp_cpus (%u)", 749 sockets, cores, threads, cpus); 750 exit(1); 751 } 752 753 ms->smp.max_cpus = 754 qemu_opt_get_number(opts, "maxcpus", cpus); 755 756 if (ms->smp.max_cpus < cpus) { 757 error_report("maxcpus must be equal to or greater than smp"); 758 exit(1); 759 } 760 761 if (sockets * cores * threads > ms->smp.max_cpus) { 762 error_report("cpu topology: " 763 "sockets (%u) * cores (%u) * threads (%u) > " 764 "maxcpus (%u)", 765 sockets, cores, threads, 766 ms->smp.max_cpus); 767 exit(1); 768 } 769 770 if (sockets * cores * threads != ms->smp.max_cpus) { 771 warn_report("Invalid CPU topology deprecated: " 772 "sockets (%u) * cores (%u) * threads (%u) " 773 "!= maxcpus (%u)", 774 sockets, cores, threads, 775 ms->smp.max_cpus); 776 } 777 778 ms->smp.cpus = cpus; 779 ms->smp.cores = cores; 780 ms->smp.threads = threads; 781 } 782 783 if (ms->smp.cpus > 1) { 784 Error *blocker = NULL; 785 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp"); 786 replay_add_blocker(blocker); 787 } 788 } 789 790 static void machine_class_init(ObjectClass *oc, void *data) 791 { 792 MachineClass *mc = MACHINE_CLASS(oc); 793 794 /* Default 128 MB as guest ram size */ 795 mc->default_ram_size = 128 * MiB; 796 mc->rom_file_has_mr = true; 797 mc->smp_parse = smp_parse; 798 799 /* numa node memory size aligned on 8MB by default. 800 * On Linux, each node's border has to be 8MB aligned 801 */ 802 mc->numa_mem_align_shift = 23; 803 mc->numa_auto_assign_ram = numa_default_auto_assign_ram; 804 805 object_class_property_add_str(oc, "accel", 806 machine_get_accel, machine_set_accel, &error_abort); 807 object_class_property_set_description(oc, "accel", 808 "Accelerator list", &error_abort); 809 810 object_class_property_add(oc, "kernel-irqchip", "on|off|split", 811 NULL, machine_set_kernel_irqchip, 812 NULL, NULL, &error_abort); 813 object_class_property_set_description(oc, "kernel-irqchip", 814 "Configure KVM in-kernel irqchip", &error_abort); 815 816 object_class_property_add(oc, "kvm-shadow-mem", "int", 817 machine_get_kvm_shadow_mem, machine_set_kvm_shadow_mem, 818 NULL, NULL, &error_abort); 819 object_class_property_set_description(oc, "kvm-shadow-mem", 820 "KVM shadow MMU size", &error_abort); 821 822 object_class_property_add_str(oc, "kernel", 823 machine_get_kernel, machine_set_kernel, &error_abort); 824 object_class_property_set_description(oc, "kernel", 825 "Linux kernel image file", &error_abort); 826 827 object_class_property_add_str(oc, "initrd", 828 machine_get_initrd, machine_set_initrd, &error_abort); 829 object_class_property_set_description(oc, "initrd", 830 "Linux initial ramdisk file", &error_abort); 831 832 object_class_property_add_str(oc, "append", 833 machine_get_append, machine_set_append, &error_abort); 834 object_class_property_set_description(oc, "append", 835 "Linux kernel command line", &error_abort); 836 837 object_class_property_add_str(oc, "dtb", 838 machine_get_dtb, machine_set_dtb, &error_abort); 839 object_class_property_set_description(oc, "dtb", 840 "Linux kernel device tree file", &error_abort); 841 842 object_class_property_add_str(oc, "dumpdtb", 843 machine_get_dumpdtb, machine_set_dumpdtb, &error_abort); 844 object_class_property_set_description(oc, "dumpdtb", 845 "Dump current dtb to a file and quit", &error_abort); 846 847 object_class_property_add(oc, "phandle-start", "int", 848 machine_get_phandle_start, machine_set_phandle_start, 849 NULL, NULL, &error_abort); 850 object_class_property_set_description(oc, "phandle-start", 851 "The first phandle ID we may generate dynamically", &error_abort); 852 853 object_class_property_add_str(oc, "dt-compatible", 854 machine_get_dt_compatible, machine_set_dt_compatible, &error_abort); 855 object_class_property_set_description(oc, "dt-compatible", 856 "Overrides the \"compatible\" property of the dt root node", 857 &error_abort); 858 859 object_class_property_add_bool(oc, "dump-guest-core", 860 machine_get_dump_guest_core, machine_set_dump_guest_core, &error_abort); 861 object_class_property_set_description(oc, "dump-guest-core", 862 "Include guest memory in a core dump", &error_abort); 863 864 object_class_property_add_bool(oc, "mem-merge", 865 machine_get_mem_merge, machine_set_mem_merge, &error_abort); 866 object_class_property_set_description(oc, "mem-merge", 867 "Enable/disable memory merge support", &error_abort); 868 869 object_class_property_add_bool(oc, "usb", 870 machine_get_usb, machine_set_usb, &error_abort); 871 object_class_property_set_description(oc, "usb", 872 "Set on/off to enable/disable usb", &error_abort); 873 874 object_class_property_add_bool(oc, "graphics", 875 machine_get_graphics, machine_set_graphics, &error_abort); 876 object_class_property_set_description(oc, "graphics", 877 "Set on/off to enable/disable graphics emulation", &error_abort); 878 879 object_class_property_add_bool(oc, "igd-passthru", 880 machine_get_igd_gfx_passthru, machine_set_igd_gfx_passthru, 881 &error_abort); 882 object_class_property_set_description(oc, "igd-passthru", 883 "Set on/off to enable/disable igd passthrou", &error_abort); 884 885 object_class_property_add_str(oc, "firmware", 886 machine_get_firmware, machine_set_firmware, 887 &error_abort); 888 object_class_property_set_description(oc, "firmware", 889 "Firmware image", &error_abort); 890 891 object_class_property_add_bool(oc, "suppress-vmdesc", 892 machine_get_suppress_vmdesc, machine_set_suppress_vmdesc, 893 &error_abort); 894 object_class_property_set_description(oc, "suppress-vmdesc", 895 "Set on to disable self-describing migration", &error_abort); 896 897 object_class_property_add_bool(oc, "enforce-config-section", 898 machine_get_enforce_config_section, machine_set_enforce_config_section, 899 &error_abort); 900 object_class_property_set_description(oc, "enforce-config-section", 901 "Set on to enforce configuration section migration", &error_abort); 902 903 object_class_property_add_str(oc, "memory-encryption", 904 machine_get_memory_encryption, machine_set_memory_encryption, 905 &error_abort); 906 object_class_property_set_description(oc, "memory-encryption", 907 "Set memory encryption object to use", &error_abort); 908 } 909 910 static void machine_class_base_init(ObjectClass *oc, void *data) 911 { 912 if (!object_class_is_abstract(oc)) { 913 MachineClass *mc = MACHINE_CLASS(oc); 914 const char *cname = object_class_get_name(oc); 915 assert(g_str_has_suffix(cname, TYPE_MACHINE_SUFFIX)); 916 mc->name = g_strndup(cname, 917 strlen(cname) - strlen(TYPE_MACHINE_SUFFIX)); 918 mc->compat_props = g_ptr_array_new(); 919 } 920 } 921 922 static void machine_initfn(Object *obj) 923 { 924 MachineState *ms = MACHINE(obj); 925 MachineClass *mc = MACHINE_GET_CLASS(obj); 926 927 ms->kernel_irqchip_allowed = true; 928 ms->kernel_irqchip_split = mc->default_kernel_irqchip_split; 929 ms->kvm_shadow_mem = -1; 930 ms->dump_guest_core = true; 931 ms->mem_merge = true; 932 ms->enable_graphics = true; 933 934 if (mc->nvdimm_supported) { 935 Object *obj = OBJECT(ms); 936 937 ms->nvdimms_state = g_new0(NVDIMMState, 1); 938 object_property_add_bool(obj, "nvdimm", 939 machine_get_nvdimm, machine_set_nvdimm, 940 &error_abort); 941 object_property_set_description(obj, "nvdimm", 942 "Set on/off to enable/disable " 943 "NVDIMM instantiation", NULL); 944 945 object_property_add_str(obj, "nvdimm-persistence", 946 machine_get_nvdimm_persistence, 947 machine_set_nvdimm_persistence, 948 &error_abort); 949 object_property_set_description(obj, "nvdimm-persistence", 950 "Set NVDIMM persistence" 951 "Valid values are cpu, mem-ctrl", 952 NULL); 953 } 954 955 956 /* Register notifier when init is done for sysbus sanity checks */ 957 ms->sysbus_notifier.notify = machine_init_notify; 958 qemu_add_machine_init_done_notifier(&ms->sysbus_notifier); 959 } 960 961 static void machine_finalize(Object *obj) 962 { 963 MachineState *ms = MACHINE(obj); 964 965 g_free(ms->accel); 966 g_free(ms->kernel_filename); 967 g_free(ms->initrd_filename); 968 g_free(ms->kernel_cmdline); 969 g_free(ms->dtb); 970 g_free(ms->dumpdtb); 971 g_free(ms->dt_compatible); 972 g_free(ms->firmware); 973 g_free(ms->device_memory); 974 g_free(ms->nvdimms_state); 975 } 976 977 bool machine_usb(MachineState *machine) 978 { 979 return machine->usb; 980 } 981 982 bool machine_kernel_irqchip_allowed(MachineState *machine) 983 { 984 return machine->kernel_irqchip_allowed; 985 } 986 987 bool machine_kernel_irqchip_required(MachineState *machine) 988 { 989 return machine->kernel_irqchip_required; 990 } 991 992 bool machine_kernel_irqchip_split(MachineState *machine) 993 { 994 return machine->kernel_irqchip_split; 995 } 996 997 int machine_kvm_shadow_mem(MachineState *machine) 998 { 999 return machine->kvm_shadow_mem; 1000 } 1001 1002 int machine_phandle_start(MachineState *machine) 1003 { 1004 return machine->phandle_start; 1005 } 1006 1007 bool machine_dump_guest_core(MachineState *machine) 1008 { 1009 return machine->dump_guest_core; 1010 } 1011 1012 bool machine_mem_merge(MachineState *machine) 1013 { 1014 return machine->mem_merge; 1015 } 1016 1017 static char *cpu_slot_to_string(const CPUArchId *cpu) 1018 { 1019 GString *s = g_string_new(NULL); 1020 if (cpu->props.has_socket_id) { 1021 g_string_append_printf(s, "socket-id: %"PRId64, cpu->props.socket_id); 1022 } 1023 if (cpu->props.has_die_id) { 1024 g_string_append_printf(s, "die-id: %"PRId64, cpu->props.die_id); 1025 } 1026 if (cpu->props.has_core_id) { 1027 if (s->len) { 1028 g_string_append_printf(s, ", "); 1029 } 1030 g_string_append_printf(s, "core-id: %"PRId64, cpu->props.core_id); 1031 } 1032 if (cpu->props.has_thread_id) { 1033 if (s->len) { 1034 g_string_append_printf(s, ", "); 1035 } 1036 g_string_append_printf(s, "thread-id: %"PRId64, cpu->props.thread_id); 1037 } 1038 return g_string_free(s, false); 1039 } 1040 1041 static void machine_numa_finish_cpu_init(MachineState *machine) 1042 { 1043 int i; 1044 bool default_mapping; 1045 GString *s = g_string_new(NULL); 1046 MachineClass *mc = MACHINE_GET_CLASS(machine); 1047 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(machine); 1048 1049 assert(nb_numa_nodes); 1050 for (i = 0; i < possible_cpus->len; i++) { 1051 if (possible_cpus->cpus[i].props.has_node_id) { 1052 break; 1053 } 1054 } 1055 default_mapping = (i == possible_cpus->len); 1056 1057 for (i = 0; i < possible_cpus->len; i++) { 1058 const CPUArchId *cpu_slot = &possible_cpus->cpus[i]; 1059 1060 if (!cpu_slot->props.has_node_id) { 1061 /* fetch default mapping from board and enable it */ 1062 CpuInstanceProperties props = cpu_slot->props; 1063 1064 props.node_id = mc->get_default_cpu_node_id(machine, i); 1065 if (!default_mapping) { 1066 /* record slots with not set mapping, 1067 * TODO: make it hard error in future */ 1068 char *cpu_str = cpu_slot_to_string(cpu_slot); 1069 g_string_append_printf(s, "%sCPU %d [%s]", 1070 s->len ? ", " : "", i, cpu_str); 1071 g_free(cpu_str); 1072 1073 /* non mapped cpus used to fallback to node 0 */ 1074 props.node_id = 0; 1075 } 1076 1077 props.has_node_id = true; 1078 machine_set_cpu_numa_node(machine, &props, &error_fatal); 1079 } 1080 } 1081 if (s->len && !qtest_enabled()) { 1082 warn_report("CPU(s) not present in any NUMA nodes: %s", 1083 s->str); 1084 warn_report("All CPU(s) up to maxcpus should be described " 1085 "in NUMA config, ability to start up with partial NUMA " 1086 "mappings is obsoleted and will be removed in future"); 1087 } 1088 g_string_free(s, true); 1089 } 1090 1091 void machine_run_board_init(MachineState *machine) 1092 { 1093 MachineClass *machine_class = MACHINE_GET_CLASS(machine); 1094 1095 numa_complete_configuration(machine); 1096 if (nb_numa_nodes) { 1097 machine_numa_finish_cpu_init(machine); 1098 } 1099 1100 /* If the machine supports the valid_cpu_types check and the user 1101 * specified a CPU with -cpu check here that the user CPU is supported. 1102 */ 1103 if (machine_class->valid_cpu_types && machine->cpu_type) { 1104 ObjectClass *class = object_class_by_name(machine->cpu_type); 1105 int i; 1106 1107 for (i = 0; machine_class->valid_cpu_types[i]; i++) { 1108 if (object_class_dynamic_cast(class, 1109 machine_class->valid_cpu_types[i])) { 1110 /* The user specificed CPU is in the valid field, we are 1111 * good to go. 1112 */ 1113 break; 1114 } 1115 } 1116 1117 if (!machine_class->valid_cpu_types[i]) { 1118 /* The user specified CPU is not valid */ 1119 error_report("Invalid CPU type: %s", machine->cpu_type); 1120 error_printf("The valid types are: %s", 1121 machine_class->valid_cpu_types[0]); 1122 for (i = 1; machine_class->valid_cpu_types[i]; i++) { 1123 error_printf(", %s", machine_class->valid_cpu_types[i]); 1124 } 1125 error_printf("\n"); 1126 1127 exit(1); 1128 } 1129 } 1130 1131 machine_class->init(machine); 1132 } 1133 1134 static const TypeInfo machine_info = { 1135 .name = TYPE_MACHINE, 1136 .parent = TYPE_OBJECT, 1137 .abstract = true, 1138 .class_size = sizeof(MachineClass), 1139 .class_init = machine_class_init, 1140 .class_base_init = machine_class_base_init, 1141 .instance_size = sizeof(MachineState), 1142 .instance_init = machine_initfn, 1143 .instance_finalize = machine_finalize, 1144 }; 1145 1146 static void machine_register_types(void) 1147 { 1148 type_register_static(&machine_info); 1149 } 1150 1151 type_init(machine_register_types) 1152