hw/core/machine.c

   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/units.h"
  15 #include "hw/boards.h"
  16 #include "qapi/error.h"
  17 #include "qapi/qapi-visit-common.h"
  18 #include "qapi/visitor.h"
  19 #include "hw/sysbus.h"
  20 #include "sysemu/sysemu.h"
  21 #include "sysemu/numa.h"
  22 #include "qemu/error-report.h"
  23 #include "sysemu/qtest.h"
  24
  25 static char *machine_get_accel(Object *obj, Error **errp)
  26 {
  27     MachineState *ms = MACHINE(obj);
  28
  29     return g_strdup(ms->accel);
  30 }
  31
  32 static void machine_set_accel(Object *obj, const char *value, Error **errp)
  33 {
  34     MachineState *ms = MACHINE(obj);
  35
  36     g_free(ms->accel);
  37     ms->accel = g_strdup(value);
  38 }
  39
  40 static void machine_set_kernel_irqchip(Object *obj, Visitor *v,
  41                                        const char *name, void *opaque,
  42                                        Error **errp)
  43 {
  44     Error *err = NULL;
  45     MachineState *ms = MACHINE(obj);
  46     OnOffSplit mode;
  47
  48     visit_type_OnOffSplit(v, name, &mode, &err);
  49     if (err) {
  50         error_propagate(errp, err);
  51         return;
  52     } else {
  53         switch (mode) {
  54         case ON_OFF_SPLIT_ON:
  55             ms->kernel_irqchip_allowed = true;
  56             ms->kernel_irqchip_required = true;
  57             ms->kernel_irqchip_split = false;
  58             break;
  59         case ON_OFF_SPLIT_OFF:
  60             ms->kernel_irqchip_allowed = false;
  61             ms->kernel_irqchip_required = false;
  62             ms->kernel_irqchip_split = false;
  63             break;
  64         case ON_OFF_SPLIT_SPLIT:
  65             ms->kernel_irqchip_allowed = true;
  66             ms->kernel_irqchip_required = true;
  67             ms->kernel_irqchip_split = true;
  68             break;
  69         default:
  70             /* The value was checked in visit_type_OnOffSplit() above. If
  71              * we get here, then something is wrong in QEMU.
  72              */
  73             abort();
  74         }
  75     }
  76 }
  77
  78 static void machine_get_kvm_shadow_mem(Object *obj, Visitor *v,
  79                                        const char *name, void *opaque,
  80                                        Error **errp)
  81 {
  82     MachineState *ms = MACHINE(obj);
  83     int64_t value = ms->kvm_shadow_mem;
  84
  85     visit_type_int(v, name, &value, errp);
  86 }
  87
  88 static void machine_set_kvm_shadow_mem(Object *obj, Visitor *v,
  89                                        const char *name, void *opaque,
  90                                        Error **errp)
  91 {
  92     MachineState *ms = MACHINE(obj);
  93     Error *error = NULL;
  94     int64_t value;
  95
  96     visit_type_int(v, name, &value, &error);
  97     if (error) {
  98         error_propagate(errp, error);
  99         return;
 100     }
 101
 102     ms->kvm_shadow_mem = value;
 103 }
 104
 105 static char *machine_get_kernel(Object *obj, Error **errp)
 106 {
 107     MachineState *ms = MACHINE(obj);
 108
 109     return g_strdup(ms->kernel_filename);
 110 }
 111
 112 static void machine_set_kernel(Object *obj, const char *value, Error **errp)
 113 {
 114     MachineState *ms = MACHINE(obj);
 115
 116     g_free(ms->kernel_filename);
 117     ms->kernel_filename = g_strdup(value);
 118 }
 119
 120 static char *machine_get_initrd(Object *obj, Error **errp)
 121 {
 122     MachineState *ms = MACHINE(obj);
 123
 124     return g_strdup(ms->initrd_filename);
 125 }
 126
 127 static void machine_set_initrd(Object *obj, const char *value, Error **errp)
 128 {
 129     MachineState *ms = MACHINE(obj);
 130
 131     g_free(ms->initrd_filename);
 132     ms->initrd_filename = g_strdup(value);
 133 }
 134
 135 static char *machine_get_append(Object *obj, Error **errp)
 136 {
 137     MachineState *ms = MACHINE(obj);
 138
 139     return g_strdup(ms->kernel_cmdline);
 140 }
 141
 142 static void machine_set_append(Object *obj, const char *value, Error **errp)
 143 {
 144     MachineState *ms = MACHINE(obj);
 145
 146     g_free(ms->kernel_cmdline);
 147     ms->kernel_cmdline = g_strdup(value);
 148 }
 149
 150 static char *machine_get_dtb(Object *obj, Error **errp)
 151 {
 152     MachineState *ms = MACHINE(obj);
 153
 154     return g_strdup(ms->dtb);
 155 }
 156
 157 static void machine_set_dtb(Object *obj, const char *value, Error **errp)
 158 {
 159     MachineState *ms = MACHINE(obj);
 160
 161     g_free(ms->dtb);
 162     ms->dtb = g_strdup(value);
 163 }
 164
 165 static char *machine_get_dumpdtb(Object *obj, Error **errp)
 166 {
 167     MachineState *ms = MACHINE(obj);
 168
 169     return g_strdup(ms->dumpdtb);
 170 }
 171
 172 static void machine_set_dumpdtb(Object *obj, const char *value, Error **errp)
 173 {
 174     MachineState *ms = MACHINE(obj);
 175
 176     g_free(ms->dumpdtb);
 177     ms->dumpdtb = g_strdup(value);
 178 }
 179
 180 static void machine_get_phandle_start(Object *obj, Visitor *v,
 181                                       const char *name, void *opaque,
 182                                       Error **errp)
 183 {
 184     MachineState *ms = MACHINE(obj);
 185     int64_t value = ms->phandle_start;
 186
 187     visit_type_int(v, name, &value, errp);
 188 }
 189
 190 static void machine_set_phandle_start(Object *obj, Visitor *v,
 191                                       const char *name, void *opaque,
 192                                       Error **errp)
 193 {
 194     MachineState *ms = MACHINE(obj);
 195     Error *error = NULL;
 196     int64_t value;
 197
 198     visit_type_int(v, name, &value, &error);
 199     if (error) {
 200         error_propagate(errp, error);
 201         return;
 202     }
 203
 204     ms->phandle_start = value;
 205 }
 206
 207 static char *machine_get_dt_compatible(Object *obj, Error **errp)
 208 {
 209     MachineState *ms = MACHINE(obj);
 210
 211     return g_strdup(ms->dt_compatible);
 212 }
 213
 214 static void machine_set_dt_compatible(Object *obj, const char *value, Error **errp)
 215 {
 216     MachineState *ms = MACHINE(obj);
 217
 218     g_free(ms->dt_compatible);
 219     ms->dt_compatible = g_strdup(value);
 220 }
 221
 222 static bool machine_get_dump_guest_core(Object *obj, Error **errp)
 223 {
 224     MachineState *ms = MACHINE(obj);
 225
 226     return ms->dump_guest_core;
 227 }
 228
 229 static void machine_set_dump_guest_core(Object *obj, bool value, Error **errp)
 230 {
 231     MachineState *ms = MACHINE(obj);
 232
 233     ms->dump_guest_core = value;
 234 }
 235
 236 static bool machine_get_mem_merge(Object *obj, Error **errp)
 237 {
 238     MachineState *ms = MACHINE(obj);
 239
 240     return ms->mem_merge;
 241 }
 242
 243 static void machine_set_mem_merge(Object *obj, bool value, Error **errp)
 244 {
 245     MachineState *ms = MACHINE(obj);
 246
 247     ms->mem_merge = value;
 248 }
 249
 250 static bool machine_get_usb(Object *obj, Error **errp)
 251 {
 252     MachineState *ms = MACHINE(obj);
 253
 254     return ms->usb;
 255 }
 256
 257 static void machine_set_usb(Object *obj, bool value, Error **errp)
 258 {
 259     MachineState *ms = MACHINE(obj);
 260
 261     ms->usb = value;
 262     ms->usb_disabled = !value;
 263 }
 264
 265 static bool machine_get_graphics(Object *obj, Error **errp)
 266 {
 267     MachineState *ms = MACHINE(obj);
 268
 269     return ms->enable_graphics;
 270 }
 271
 272 static void machine_set_graphics(Object *obj, bool value, Error **errp)
 273 {
 274     MachineState *ms = MACHINE(obj);
 275
 276     ms->enable_graphics = value;
 277 }
 278
 279 static bool machine_get_igd_gfx_passthru(Object *obj, Error **errp)
 280 {
 281     MachineState *ms = MACHINE(obj);
 282
 283     return ms->igd_gfx_passthru;
 284 }
 285
 286 static void machine_set_igd_gfx_passthru(Object *obj, bool value, Error **errp)
 287 {
 288     MachineState *ms = MACHINE(obj);
 289
 290     ms->igd_gfx_passthru = value;
 291 }
 292
 293 static char *machine_get_firmware(Object *obj, Error **errp)
 294 {
 295     MachineState *ms = MACHINE(obj);
 296
 297     return g_strdup(ms->firmware);
 298 }
 299
 300 static void machine_set_firmware(Object *obj, const char *value, Error **errp)
 301 {
 302     MachineState *ms = MACHINE(obj);
 303
 304     g_free(ms->firmware);
 305     ms->firmware = g_strdup(value);
 306 }
 307
 308 static void machine_set_suppress_vmdesc(Object *obj, bool value, Error **errp)
 309 {
 310     MachineState *ms = MACHINE(obj);
 311
 312     ms->suppress_vmdesc = value;
 313 }
 314
 315 static bool machine_get_suppress_vmdesc(Object *obj, Error **errp)
 316 {
 317     MachineState *ms = MACHINE(obj);
 318
 319     return ms->suppress_vmdesc;
 320 }
 321
 322 static void machine_set_enforce_config_section(Object *obj, bool value,
 323                                              Error **errp)
 324 {
 325     MachineState *ms = MACHINE(obj);
 326
 327     ms->enforce_config_section = value;
 328 }
 329
 330 static bool machine_get_enforce_config_section(Object *obj, Error **errp)
 331 {
 332     MachineState *ms = MACHINE(obj);
 333
 334     return ms->enforce_config_section;
 335 }
 336
 337 static char *machine_get_memory_encryption(Object *obj, Error **errp)
 338 {
 339     MachineState *ms = MACHINE(obj);
 340
 341     return g_strdup(ms->memory_encryption);
 342 }
 343
 344 static void machine_set_memory_encryption(Object *obj, const char *value,
 345                                         Error **errp)
 346 {
 347     MachineState *ms = MACHINE(obj);
 348
 349     g_free(ms->memory_encryption);
 350     ms->memory_encryption = g_strdup(value);
 351 }
 352
 353 void machine_class_allow_dynamic_sysbus_dev(MachineClass *mc, const char *type)
 354 {
 355     strList *item = g_new0(strList, 1);
 356
 357     item->value = g_strdup(type);
 358     item->next = mc->allowed_dynamic_sysbus_devices;
 359     mc->allowed_dynamic_sysbus_devices = item;
 360 }
 361
 362 static void validate_sysbus_device(SysBusDevice *sbdev, void *opaque)
 363 {
 364     MachineState *machine = opaque;
 365     MachineClass *mc = MACHINE_GET_CLASS(machine);
 366     bool allowed = false;
 367     strList *wl;
 368
 369     for (wl = mc->allowed_dynamic_sysbus_devices;
 370          !allowed && wl;
 371          wl = wl->next) {
 372         allowed |= !!object_dynamic_cast(OBJECT(sbdev), wl->value);
 373     }
 374
 375     if (!allowed) {
 376         error_report("Option '-device %s' cannot be handled by this machine",
 377                      object_class_get_name(object_get_class(OBJECT(sbdev))));
 378         exit(1);
 379     }
 380 }
 381
 382 static void machine_init_notify(Notifier *notifier, void *data)
 383 {
 384     MachineState *machine = MACHINE(qdev_get_machine());
 385
 386     /*
 387      * Loop through all dynamically created sysbus devices and check if they are
 388      * all allowed.  If a device is not allowed, error out.
 389      */
 390     foreach_dynamic_sysbus_device(validate_sysbus_device, machine);
 391 }
 392
 393 HotpluggableCPUList *machine_query_hotpluggable_cpus(MachineState *machine)
 394 {
 395     int i;
 396     HotpluggableCPUList *head = NULL;
 397     MachineClass *mc = MACHINE_GET_CLASS(machine);
 398
 399     /* force board to initialize possible_cpus if it hasn't been done yet */
 400     mc->possible_cpu_arch_ids(machine);
 401
 402     for (i = 0; i < machine->possible_cpus->len; i++) {
 403         Object *cpu;
 404         HotpluggableCPUList *list_item = g_new0(typeof(*list_item), 1);
 405         HotpluggableCPU *cpu_item = g_new0(typeof(*cpu_item), 1);
 406
 407         cpu_item->type = g_strdup(machine->possible_cpus->cpus[i].type);
 408         cpu_item->vcpus_count = machine->possible_cpus->cpus[i].vcpus_count;
 409         cpu_item->props = g_memdup(&machine->possible_cpus->cpus[i].props,
 410                                    sizeof(*cpu_item->props));
 411
 412         cpu = machine->possible_cpus->cpus[i].cpu;
 413         if (cpu) {
 414             cpu_item->has_qom_path = true;
 415             cpu_item->qom_path = object_get_canonical_path(cpu);
 416         }
 417         list_item->value = cpu_item;
 418         list_item->next = head;
 419         head = list_item;
 420     }
 421     return head;
 422 }
 423
 424 /**
 425  * machine_set_cpu_numa_node:
 426  * @machine: machine object to modify
 427  * @props: specifies which cpu objects to assign to
 428  *         numa node specified by @props.node_id
 429  * @errp: if an error occurs, a pointer to an area to store the error
 430  *
 431  * Associate NUMA node specified by @props.node_id with cpu slots that
 432  * match socket/core/thread-ids specified by @props. It's recommended to use
 433  * query-hotpluggable-cpus.props values to specify affected cpu slots,
 434  * which would lead to exact 1:1 mapping of cpu slots to NUMA node.
 435  *
 436  * However for CLI convenience it's possible to pass in subset of properties,
 437  * which would affect all cpu slots that match it.
 438  * Ex for pc machine:
 439  *    -smp 4,cores=2,sockets=2 -numa node,nodeid=0 -numa node,nodeid=1 \
 440  *    -numa cpu,node-id=0,socket_id=0 \
 441  *    -numa cpu,node-id=1,socket_id=1
 442  * will assign all child cores of socket 0 to node 0 and
 443  * of socket 1 to node 1.
 444  *
 445  * On attempt of reassigning (already assigned) cpu slot to another NUMA node,
 446  * return error.
 447  * Empty subset is disallowed and function will return with error in this case.
 448  */
 449 void machine_set_cpu_numa_node(MachineState *machine,
 450                                const CpuInstanceProperties *props, Error **errp)
 451 {
 452     MachineClass *mc = MACHINE_GET_CLASS(machine);
 453     bool match = false;
 454     int i;
 455
 456     if (!mc->possible_cpu_arch_ids) {
 457         error_setg(errp, "mapping of CPUs to NUMA node is not supported");
 458         return;
 459     }
 460
 461     /* disabling node mapping is not supported, forbid it */
 462     assert(props->has_node_id);
 463
 464     /* force board to initialize possible_cpus if it hasn't been done yet */
 465     mc->possible_cpu_arch_ids(machine);
 466
 467     for (i = 0; i < machine->possible_cpus->len; i++) {
 468         CPUArchId *slot = &machine->possible_cpus->cpus[i];
 469
 470         /* reject unsupported by board properties */
 471         if (props->has_thread_id && !slot->props.has_thread_id) {
 472             error_setg(errp, "thread-id is not supported");
 473             return;
 474         }
 475
 476         if (props->has_core_id && !slot->props.has_core_id) {
 477             error_setg(errp, "core-id is not supported");
 478             return;
 479         }
 480
 481         if (props->has_socket_id && !slot->props.has_socket_id) {
 482             error_setg(errp, "socket-id is not supported");
 483             return;
 484         }
 485
 486         /* skip slots with explicit mismatch */
 487         if (props->has_thread_id && props->thread_id != slot->props.thread_id) {
 488                 continue;
 489         }
 490
 491         if (props->has_core_id && props->core_id != slot->props.core_id) {
 492                 continue;
 493         }
 494
 495         if (props->has_socket_id && props->socket_id != slot->props.socket_id) {
 496                 continue;
 497         }
 498
 499         /* reject assignment if slot is already assigned, for compatibility
 500          * of legacy cpu_index mapping with SPAPR core based mapping do not
 501          * error out if cpu thread and matched core have the same node-id */
 502         if (slot->props.has_node_id &&
 503             slot->props.node_id != props->node_id) {
 504             error_setg(errp, "CPU is already assigned to node-id: %" PRId64,
 505                        slot->props.node_id);
 506             return;
 507         }
 508
 509         /* assign slot to node as it's matched '-numa cpu' key */
 510         match = true;
 511         slot->props.node_id = props->node_id;
 512         slot->props.has_node_id = props->has_node_id;
 513     }
 514
 515     if (!match) {
 516         error_setg(errp, "no match found");
 517     }
 518 }
 519
 520 static void machine_class_init(ObjectClass *oc, void *data)
 521 {
 522     MachineClass *mc = MACHINE_CLASS(oc);
 523
 524     /* Default 128 MB as guest ram size */
 525     mc->default_ram_size = 128 * MiB;
 526     mc->rom_file_has_mr = true;
 527
 528     /* numa node memory size aligned on 8MB by default.
 529      * On Linux, each node's border has to be 8MB aligned
 530      */
 531     mc->numa_mem_align_shift = 23;
 532     mc->numa_auto_assign_ram = numa_default_auto_assign_ram;
 533
 534     object_class_property_add_str(oc, "accel",
 535         machine_get_accel, machine_set_accel, &error_abort);
 536     object_class_property_set_description(oc, "accel",
 537         "Accelerator list", &error_abort);
 538
 539     object_class_property_add(oc, "kernel-irqchip", "on|off|split",
 540         NULL, machine_set_kernel_irqchip,
 541         NULL, NULL, &error_abort);
 542     object_class_property_set_description(oc, "kernel-irqchip",
 543         "Configure KVM in-kernel irqchip", &error_abort);
 544
 545     object_class_property_add(oc, "kvm-shadow-mem", "int",
 546         machine_get_kvm_shadow_mem, machine_set_kvm_shadow_mem,
 547         NULL, NULL, &error_abort);
 548     object_class_property_set_description(oc, "kvm-shadow-mem",
 549         "KVM shadow MMU size", &error_abort);
 550
 551     object_class_property_add_str(oc, "kernel",
 552         machine_get_kernel, machine_set_kernel, &error_abort);
 553     object_class_property_set_description(oc, "kernel",
 554         "Linux kernel image file", &error_abort);
 555
 556     object_class_property_add_str(oc, "initrd",
 557         machine_get_initrd, machine_set_initrd, &error_abort);
 558     object_class_property_set_description(oc, "initrd",
 559         "Linux initial ramdisk file", &error_abort);
 560
 561     object_class_property_add_str(oc, "append",
 562         machine_get_append, machine_set_append, &error_abort);
 563     object_class_property_set_description(oc, "append",
 564         "Linux kernel command line", &error_abort);
 565
 566     object_class_property_add_str(oc, "dtb",
 567         machine_get_dtb, machine_set_dtb, &error_abort);
 568     object_class_property_set_description(oc, "dtb",
 569         "Linux kernel device tree file", &error_abort);
 570
 571     object_class_property_add_str(oc, "dumpdtb",
 572         machine_get_dumpdtb, machine_set_dumpdtb, &error_abort);
 573     object_class_property_set_description(oc, "dumpdtb",
 574         "Dump current dtb to a file and quit", &error_abort);
 575
 576     object_class_property_add(oc, "phandle-start", "int",
 577         machine_get_phandle_start, machine_set_phandle_start,
 578         NULL, NULL, &error_abort);
 579     object_class_property_set_description(oc, "phandle-start",
 580             "The first phandle ID we may generate dynamically", &error_abort);
 581
 582     object_class_property_add_str(oc, "dt-compatible",
 583         machine_get_dt_compatible, machine_set_dt_compatible, &error_abort);
 584     object_class_property_set_description(oc, "dt-compatible",
 585         "Overrides the \"compatible\" property of the dt root node",
 586         &error_abort);
 587
 588     object_class_property_add_bool(oc, "dump-guest-core",
 589         machine_get_dump_guest_core, machine_set_dump_guest_core, &error_abort);
 590     object_class_property_set_description(oc, "dump-guest-core",
 591         "Include guest memory in  a core dump", &error_abort);
 592
 593     object_class_property_add_bool(oc, "mem-merge",
 594         machine_get_mem_merge, machine_set_mem_merge, &error_abort);
 595     object_class_property_set_description(oc, "mem-merge",
 596         "Enable/disable memory merge support", &error_abort);
 597
 598     object_class_property_add_bool(oc, "usb",
 599         machine_get_usb, machine_set_usb, &error_abort);
 600     object_class_property_set_description(oc, "usb",
 601         "Set on/off to enable/disable usb", &error_abort);
 602
 603     object_class_property_add_bool(oc, "graphics",
 604         machine_get_graphics, machine_set_graphics, &error_abort);
 605     object_class_property_set_description(oc, "graphics",
 606         "Set on/off to enable/disable graphics emulation", &error_abort);
 607
 608     object_class_property_add_bool(oc, "igd-passthru",
 609         machine_get_igd_gfx_passthru, machine_set_igd_gfx_passthru,
 610         &error_abort);
 611     object_class_property_set_description(oc, "igd-passthru",
 612         "Set on/off to enable/disable igd passthrou", &error_abort);
 613
 614     object_class_property_add_str(oc, "firmware",
 615         machine_get_firmware, machine_set_firmware,
 616         &error_abort);
 617     object_class_property_set_description(oc, "firmware",
 618         "Firmware image", &error_abort);
 619
 620     object_class_property_add_bool(oc, "suppress-vmdesc",
 621         machine_get_suppress_vmdesc, machine_set_suppress_vmdesc,
 622         &error_abort);
 623     object_class_property_set_description(oc, "suppress-vmdesc",
 624         "Set on to disable self-describing migration", &error_abort);
 625
 626     object_class_property_add_bool(oc, "enforce-config-section",
 627         machine_get_enforce_config_section, machine_set_enforce_config_section,
 628         &error_abort);
 629     object_class_property_set_description(oc, "enforce-config-section",
 630         "Set on to enforce configuration section migration", &error_abort);
 631
 632     object_class_property_add_str(oc, "memory-encryption",
 633         machine_get_memory_encryption, machine_set_memory_encryption,
 634         &error_abort);
 635     object_class_property_set_description(oc, "memory-encryption",
 636         "Set memory encyption object to use", &error_abort);
 637 }
 638
 639 static void machine_class_base_init(ObjectClass *oc, void *data)
 640 {
 641     if (!object_class_is_abstract(oc)) {
 642         MachineClass *mc = MACHINE_CLASS(oc);
 643         const char *cname = object_class_get_name(oc);
 644         assert(g_str_has_suffix(cname, TYPE_MACHINE_SUFFIX));
 645         mc->name = g_strndup(cname,
 646                             strlen(cname) - strlen(TYPE_MACHINE_SUFFIX));
 647     }
 648 }
 649
 650 static void machine_initfn(Object *obj)
 651 {
 652     MachineState *ms = MACHINE(obj);
 653
 654     ms->kernel_irqchip_allowed = true;
 655     ms->kvm_shadow_mem = -1;
 656     ms->dump_guest_core = true;
 657     ms->mem_merge = true;
 658     ms->enable_graphics = true;
 659
 660     /* Register notifier when init is done for sysbus sanity checks */
 661     ms->sysbus_notifier.notify = machine_init_notify;
 662     qemu_add_machine_init_done_notifier(&ms->sysbus_notifier);
 663 }
 664
 665 static void machine_finalize(Object *obj)
 666 {
 667     MachineState *ms = MACHINE(obj);
 668
 669     g_free(ms->accel);
 670     g_free(ms->kernel_filename);
 671     g_free(ms->initrd_filename);
 672     g_free(ms->kernel_cmdline);
 673     g_free(ms->dtb);
 674     g_free(ms->dumpdtb);
 675     g_free(ms->dt_compatible);
 676     g_free(ms->firmware);
 677     g_free(ms->device_memory);
 678 }
 679
 680 bool machine_usb(MachineState *machine)
 681 {
 682     return machine->usb;
 683 }
 684
 685 bool machine_kernel_irqchip_allowed(MachineState *machine)
 686 {
 687     return machine->kernel_irqchip_allowed;
 688 }
 689
 690 bool machine_kernel_irqchip_required(MachineState *machine)
 691 {
 692     return machine->kernel_irqchip_required;
 693 }
 694
 695 bool machine_kernel_irqchip_split(MachineState *machine)
 696 {
 697     return machine->kernel_irqchip_split;
 698 }
 699
 700 int machine_kvm_shadow_mem(MachineState *machine)
 701 {
 702     return machine->kvm_shadow_mem;
 703 }
 704
 705 int machine_phandle_start(MachineState *machine)
 706 {
 707     return machine->phandle_start;
 708 }
 709
 710 bool machine_dump_guest_core(MachineState *machine)
 711 {
 712     return machine->dump_guest_core;
 713 }
 714
 715 bool machine_mem_merge(MachineState *machine)
 716 {
 717     return machine->mem_merge;
 718 }
 719
 720 static char *cpu_slot_to_string(const CPUArchId *cpu)
 721 {
 722     GString *s = g_string_new(NULL);
 723     if (cpu->props.has_socket_id) {
 724         g_string_append_printf(s, "socket-id: %"PRId64, cpu->props.socket_id);
 725     }
 726     if (cpu->props.has_core_id) {
 727         if (s->len) {
 728             g_string_append_printf(s, ", ");
 729         }
 730         g_string_append_printf(s, "core-id: %"PRId64, cpu->props.core_id);
 731     }
 732     if (cpu->props.has_thread_id) {
 733         if (s->len) {
 734             g_string_append_printf(s, ", ");
 735         }
 736         g_string_append_printf(s, "thread-id: %"PRId64, cpu->props.thread_id);
 737     }
 738     return g_string_free(s, false);
 739 }
 740
 741 static void machine_numa_finish_cpu_init(MachineState *machine)
 742 {
 743     int i;
 744     bool default_mapping;
 745     GString *s = g_string_new(NULL);
 746     MachineClass *mc = MACHINE_GET_CLASS(machine);
 747     const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(machine);
 748
 749     assert(nb_numa_nodes);
 750     for (i = 0; i < possible_cpus->len; i++) {
 751         if (possible_cpus->cpus[i].props.has_node_id) {
 752             break;
 753         }
 754     }
 755     default_mapping = (i == possible_cpus->len);
 756
 757     for (i = 0; i < possible_cpus->len; i++) {
 758         const CPUArchId *cpu_slot = &possible_cpus->cpus[i];
 759
 760         if (!cpu_slot->props.has_node_id) {
 761             /* fetch default mapping from board and enable it */
 762             CpuInstanceProperties props = cpu_slot->props;
 763
 764             props.node_id = mc->get_default_cpu_node_id(machine, i);
 765             if (!default_mapping) {
 766                 /* record slots with not set mapping,
 767                  * TODO: make it hard error in future */
 768                 char *cpu_str = cpu_slot_to_string(cpu_slot);
 769                 g_string_append_printf(s, "%sCPU %d [%s]",
 770                                        s->len ? ", " : "", i, cpu_str);
 771                 g_free(cpu_str);
 772
 773                 /* non mapped cpus used to fallback to node 0 */
 774                 props.node_id = 0;
 775             }
 776
 777             props.has_node_id = true;
 778             machine_set_cpu_numa_node(machine, &props, &error_fatal);
 779         }
 780     }
 781     if (s->len && !qtest_enabled()) {
 782         warn_report("CPU(s) not present in any NUMA nodes: %s",
 783                     s->str);
 784         warn_report("All CPU(s) up to maxcpus should be described "
 785                     "in NUMA config, ability to start up with partial NUMA "
 786                     "mappings is obsoleted and will be removed in future");
 787     }
 788     g_string_free(s, true);
 789 }
 790
 791 void machine_run_board_init(MachineState *machine)
 792 {
 793     MachineClass *machine_class = MACHINE_GET_CLASS(machine);
 794
 795     numa_complete_configuration(machine);
 796     if (nb_numa_nodes)
 797         machine_numa_finish_cpu_init(machine);
 798
 799     /* If the machine supports the valid_cpu_types check and the user
 800      * specified a CPU with -cpu check here that the user CPU is supported.
 801      */
 802     if (machine_class->valid_cpu_types && machine->cpu_type) {
 803         ObjectClass *class = object_class_by_name(machine->cpu_type);
 804         int i;
 805
 806         for (i = 0; machine_class->valid_cpu_types[i]; i++) {
 807             if (object_class_dynamic_cast(class,
 808                                           machine_class->valid_cpu_types[i])) {
 809                 /* The user specificed CPU is in the valid field, we are
 810                  * good to go.
 811                  */
 812                 break;
 813             }
 814         }
 815
 816         if (!machine_class->valid_cpu_types[i]) {
 817             /* The user specified CPU is not valid */
 818             error_report("Invalid CPU type: %s", machine->cpu_type);
 819             error_printf("The valid types are: %s",
 820                          machine_class->valid_cpu_types[0]);
 821             for (i = 1; machine_class->valid_cpu_types[i]; i++) {
 822                 error_printf(", %s", machine_class->valid_cpu_types[i]);
 823             }
 824             error_printf("\n");
 825
 826             exit(1);
 827         }
 828     }
 829
 830     machine_class->init(machine);
 831 }
 832
 833 static void machine_class_finalize(ObjectClass *klass, void *data)
 834 {
 835     MachineClass *mc = MACHINE_CLASS(klass);
 836
 837     if (mc->compat_props) {
 838         g_array_free(mc->compat_props, true);
 839     }
 840     g_free(mc->name);
 841 }
 842
 843 void machine_register_compat_props(MachineState *machine)
 844 {
 845     MachineClass *mc = MACHINE_GET_CLASS(machine);
 846     int i;
 847     GlobalProperty *p;
 848
 849     if (!mc->compat_props) {
 850         return;
 851     }
 852
 853     for (i = 0; i < mc->compat_props->len; i++) {
 854         p = g_array_index(mc->compat_props, GlobalProperty *, i);
 855         /* Machine compat_props must never cause errors: */
 856         p->errp = &error_abort;
 857         qdev_prop_register_global(p);
 858     }
 859 }
 860
 861 static const TypeInfo machine_info = {
 862     .name = TYPE_MACHINE,
 863     .parent = TYPE_OBJECT,
 864     .abstract = true,
 865     .class_size = sizeof(MachineClass),
 866     .class_init    = machine_class_init,
 867     .class_base_init = machine_class_base_init,
 868     .class_finalize = machine_class_finalize,
 869     .instance_size = sizeof(MachineState),
 870     .instance_init = machine_initfn,
 871     .instance_finalize = machine_finalize,
 872 };
 873
 874 static void machine_register_types(void)
 875 {
 876     type_register_static(&machine_info);
 877 }
 878
 879 type_init(machine_register_types)