aboutsummaryrefslogtreecommitdiff
path: root/hw/core/machine.c
blob: 5d445839e89e194b1726671ec6cc5ce5543494ed (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
/*
 * QEMU Machine
 *
 * Copyright (C) 2014 Red Hat Inc
 *
 * Authors:
 *   Marcel Apfelbaum <marcel.a@redhat.com>
 *
 * This work is licensed under the terms of the GNU GPL, version 2 or later.
 * See the COPYING file in the top-level directory.
 */

#include "qemu/osdep.h"
#include "hw/boards.h"
#include "qapi/error.h"
#include "qapi-visit.h"
#include "qapi/visitor.h"
#include "hw/sysbus.h"
#include "sysemu/sysemu.h"
#include "sysemu/numa.h"
#include "qemu/error-report.h"
#include "qemu/cutils.h"
#include "sysemu/qtest.h"

static char *machine_get_accel(Object *obj, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    return g_strdup(ms->accel);
}

static void machine_set_accel(Object *obj, const char *value, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    g_free(ms->accel);
    ms->accel = g_strdup(value);
}

static void machine_set_kernel_irqchip(Object *obj, Visitor *v,
                                       const char *name, void *opaque,
                                       Error **errp)
{
    Error *err = NULL;
    MachineState *ms = MACHINE(obj);
    OnOffSplit mode;

    visit_type_OnOffSplit(v, name, &mode, &err);
    if (err) {
        error_propagate(errp, err);
        return;
    } else {
        switch (mode) {
        case ON_OFF_SPLIT_ON:
            ms->kernel_irqchip_allowed = true;
            ms->kernel_irqchip_required = true;
            ms->kernel_irqchip_split = false;
            break;
        case ON_OFF_SPLIT_OFF:
            ms->kernel_irqchip_allowed = false;
            ms->kernel_irqchip_required = false;
            ms->kernel_irqchip_split = false;
            break;
        case ON_OFF_SPLIT_SPLIT:
            ms->kernel_irqchip_allowed = true;
            ms->kernel_irqchip_required = true;
            ms->kernel_irqchip_split = true;
            break;
        default:
            /* The value was checked in visit_type_OnOffSplit() above. If
             * we get here, then something is wrong in QEMU.
             */
            abort();
        }
    }
}

static void machine_get_kvm_shadow_mem(Object *obj, Visitor *v,
                                       const char *name, void *opaque,
                                       Error **errp)
{
    MachineState *ms = MACHINE(obj);
    int64_t value = ms->kvm_shadow_mem;

    visit_type_int(v, name, &value, errp);
}

static void machine_set_kvm_shadow_mem(Object *obj, Visitor *v,
                                       const char *name, void *opaque,
                                       Error **errp)
{
    MachineState *ms = MACHINE(obj);
    Error *error = NULL;
    int64_t value;

    visit_type_int(v, name, &value, &error);
    if (error) {
        error_propagate(errp, error);
        return;
    }

    ms->kvm_shadow_mem = value;
}

static char *machine_get_kernel(Object *obj, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    return g_strdup(ms->kernel_filename);
}

static void machine_set_kernel(Object *obj, const char *value, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    g_free(ms->kernel_filename);
    ms->kernel_filename = g_strdup(value);
}

static char *machine_get_initrd(Object *obj, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    return g_strdup(ms->initrd_filename);
}

static void machine_set_initrd(Object *obj, const char *value, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    g_free(ms->initrd_filename);
    ms->initrd_filename = g_strdup(value);
}

static char *machine_get_append(Object *obj, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    return g_strdup(ms->kernel_cmdline);
}

static void machine_set_append(Object *obj, const char *value, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    g_free(ms->kernel_cmdline);
    ms->kernel_cmdline = g_strdup(value);
}

static char *machine_get_dtb(Object *obj, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    return g_strdup(ms->dtb);
}

static void machine_set_dtb(Object *obj, const char *value, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    g_free(ms->dtb);
    ms->dtb = g_strdup(value);
}

static char *machine_get_dumpdtb(Object *obj, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    return g_strdup(ms->dumpdtb);
}

static void machine_set_dumpdtb(Object *obj, const char *value, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    g_free(ms->dumpdtb);
    ms->dumpdtb = g_strdup(value);
}

static void machine_get_phandle_start(Object *obj, Visitor *v,
                                      const char *name, void *opaque,
                                      Error **errp)
{
    MachineState *ms = MACHINE(obj);
    int64_t value = ms->phandle_start;

    visit_type_int(v, name, &value, errp);
}

static void machine_set_phandle_start(Object *obj, Visitor *v,
                                      const char *name, void *opaque,
                                      Error **errp)
{
    MachineState *ms = MACHINE(obj);
    Error *error = NULL;
    int64_t value;

    visit_type_int(v, name, &value, &error);
    if (error) {
        error_propagate(errp, error);
        return;
    }

    ms->phandle_start = value;
}

static char *machine_get_dt_compatible(Object *obj, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    return g_strdup(ms->dt_compatible);
}

static void machine_set_dt_compatible(Object *obj, const char *value, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    g_free(ms->dt_compatible);
    ms->dt_compatible = g_strdup(value);
}

static bool machine_get_dump_guest_core(Object *obj, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    return ms->dump_guest_core;
}

static void machine_set_dump_guest_core(Object *obj, bool value, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    ms->dump_guest_core = value;
}

static bool machine_get_mem_merge(Object *obj, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    return ms->mem_merge;
}

static void machine_set_mem_merge(Object *obj, bool value, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    ms->mem_merge = value;
}

static bool machine_get_usb(Object *obj, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    return ms->usb;
}

static void machine_set_usb(Object *obj, bool value, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    ms->usb = value;
    ms->usb_disabled = !value;
}

static bool machine_get_graphics(Object *obj, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    return ms->enable_graphics;
}

static void machine_set_graphics(Object *obj, bool value, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    ms->enable_graphics = value;
}

static bool machine_get_igd_gfx_passthru(Object *obj, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    return ms->igd_gfx_passthru;
}

static void machine_set_igd_gfx_passthru(Object *obj, bool value, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    ms->igd_gfx_passthru = value;
}

static char *machine_get_firmware(Object *obj, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    return g_strdup(ms->firmware);
}

static void machine_set_firmware(Object *obj, const char *value, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    g_free(ms->firmware);
    ms->firmware = g_strdup(value);
}

static void machine_set_suppress_vmdesc(Object *obj, bool value, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    ms->suppress_vmdesc = value;
}

static bool machine_get_suppress_vmdesc(Object *obj, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    return ms->suppress_vmdesc;
}

static void machine_set_enforce_config_section(Object *obj, bool value,
                                             Error **errp)
{
    MachineState *ms = MACHINE(obj);

    ms->enforce_config_section = value;
}

static bool machine_get_enforce_config_section(Object *obj, Error **errp)
{
    MachineState *ms = MACHINE(obj);

    return ms->enforce_config_section;
}

void machine_class_allow_dynamic_sysbus_dev(MachineClass *mc, const char *type)
{
    strList *item = g_new0(strList, 1);

    item->value = g_strdup(type);
    item->next = mc->allowed_dynamic_sysbus_devices;
    mc->allowed_dynamic_sysbus_devices = item;
}

static void validate_sysbus_device(SysBusDevice *sbdev, void *opaque)
{
    MachineState *machine = opaque;
    MachineClass *mc = MACHINE_GET_CLASS(machine);
    bool allowed = false;
    strList *wl;

    for (wl = mc->allowed_dynamic_sysbus_devices;
         !allowed && wl;
         wl = wl->next) {
        allowed |= !!object_dynamic_cast(OBJECT(sbdev), wl->value);
    }

    if (!allowed) {
        error_report("Option '-device %s' cannot be handled by this machine",
                     object_class_get_name(object_get_class(OBJECT(sbdev))));
        exit(1);
    }
}

static void machine_init_notify(Notifier *notifier, void *data)
{
    MachineState *machine = MACHINE(qdev_get_machine());

    /*
     * Loop through all dynamically created sysbus devices and check if they are
     * all allowed.  If a device is not allowed, error out.
     */
    foreach_dynamic_sysbus_device(validate_sysbus_device, machine);
}

HotpluggableCPUList *machine_query_hotpluggable_cpus(MachineState *machine)
{
    int i;
    HotpluggableCPUList *head = NULL;
    MachineClass *mc = MACHINE_GET_CLASS(machine);

    /* force board to initialize possible_cpus if it hasn't been done yet */
    mc->possible_cpu_arch_ids(machine);

    for (i = 0; i < machine->possible_cpus->len; i++) {
        Object *cpu;
        HotpluggableCPUList *list_item = g_new0(typeof(*list_item), 1);
        HotpluggableCPU *cpu_item = g_new0(typeof(*cpu_item), 1);

        cpu_item->type = g_strdup(machine->possible_cpus->cpus[i].type);
        cpu_item->vcpus_count = machine->possible_cpus->cpus[i].vcpus_count;
        cpu_item->props = g_memdup(&machine->possible_cpus->cpus[i].props,
                                   sizeof(*cpu_item->props));

        cpu = machine->possible_cpus->cpus[i].cpu;
        if (cpu) {
            cpu_item->has_qom_path = true;
            cpu_item->qom_path = object_get_canonical_path(cpu);
        }
        list_item->value = cpu_item;
        list_item->next = head;
        head = list_item;
    }
    return head;
}

/**
 * machine_set_cpu_numa_node:
 * @machine: machine object to modify
 * @props: specifies which cpu objects to assign to
 *         numa node specified by @props.node_id
 * @errp: if an error occurs, a pointer to an area to store the error
 *
 * Associate NUMA node specified by @props.node_id with cpu slots that
 * match socket/core/thread-ids specified by @props. It's recommended to use
 * query-hotpluggable-cpus.props values to specify affected cpu slots,
 * which would lead to exact 1:1 mapping of cpu slots to NUMA node.
 *
 * However for CLI convenience it's possible to pass in subset of properties,
 * which would affect all cpu slots that match it.
 * Ex for pc machine:
 *    -smp 4,cores=2,sockets=2 -numa node,nodeid=0 -numa node,nodeid=1 \
 *    -numa cpu,node-id=0,socket_id=0 \
 *    -numa cpu,node-id=1,socket_id=1
 * will assign all child cores of socket 0 to node 0 and
 * of socket 1 to node 1.
 *
 * On attempt of reassigning (already assigned) cpu slot to another NUMA node,
 * return error.
 * Empty subset is disallowed and function will return with error in this case.
 */
void machine_set_cpu_numa_node(MachineState *machine,
                               const CpuInstanceProperties *props, Error **errp)
{
    MachineClass *mc = MACHINE_GET_CLASS(machine);
    bool match = false;
    int i;

    if (!mc->possible_cpu_arch_ids) {
        error_setg(errp, "mapping of CPUs to NUMA node is not supported");
        return;
    }

    /* disabling node mapping is not supported, forbid it */
    assert(props->has_node_id);

    /* force board to initialize possible_cpus if it hasn't been done yet */
    mc->possible_cpu_arch_ids(machine);

    for (i = 0; i < machine->possible_cpus->len; i++) {
        CPUArchId *slot = &machine->possible_cpus->cpus[i];

        /* reject unsupported by board properties */
        if (props->has_thread_id && !slot->props.has_thread_id) {
            error_setg(errp, "thread-id is not supported");
            return;
        }

        if (props->has_core_id && !slot->props.has_core_id) {
            error_setg(errp, "core-id is not supported");
            return;
        }

        if (props->has_socket_id && !slot->props.has_socket_id) {
            error_setg(errp, "socket-id is not supported");
            return;
        }

        /* skip slots with explicit mismatch */
        if (props->has_thread_id && props->thread_id != slot->props.thread_id) {
                continue;
        }

        if (props->has_core_id && props->core_id != slot->props.core_id) {
                continue;
        }

        if (props->has_socket_id && props->socket_id != slot->props.socket_id) {
                continue;
        }

        /* reject assignment if slot is already assigned, for compatibility
         * of legacy cpu_index mapping with SPAPR core based mapping do not
         * error out if cpu thread and matched core have the same node-id */
        if (slot->props.has_node_id &&
            slot->props.node_id != props->node_id) {
            error_setg(errp, "CPU is already assigned to node-id: %" PRId64,
                       slot->props.node_id);
            return;
        }

        /* assign slot to node as it's matched '-numa cpu' key */
        match = true;
        slot->props.node_id = props->node_id;
        slot->props.has_node_id = props->has_node_id;
    }

    if (!match) {
        error_setg(errp, "no match found");
    }
}

static void machine_class_init(ObjectClass *oc, void *data)
{
    MachineClass *mc = MACHINE_CLASS(oc);

    /* Default 128 MB as guest ram size */
    mc->default_ram_size = 128 * M_BYTE;
    mc->rom_file_has_mr = true;

    /* numa node memory size aligned on 8MB by default.
     * On Linux, each node's border has to be 8MB aligned
     */
    mc->numa_mem_align_shift = 23;
    mc->numa_auto_assign_ram = numa_default_auto_assign_ram;

    object_class_property_add_str(oc, "accel",
        machine_get_accel, machine_set_accel, &error_abort);
    object_class_property_set_description(oc, "accel",
        "Accelerator list", &error_abort);

    object_class_property_add(oc, "kernel-irqchip", "on|off|split",
        NULL, machine_set_kernel_irqchip,
        NULL, NULL, &error_abort);
    object_class_property_set_description(oc, "kernel-irqchip",
        "Configure KVM in-kernel irqchip", &error_abort);

    object_class_property_add(oc, "kvm-shadow-mem", "int",
        machine_get_kvm_shadow_mem, machine_set_kvm_shadow_mem,
        NULL, NULL, &error_abort);
    object_class_property_set_description(oc, "kvm-shadow-mem",
        "KVM shadow MMU size", &error_abort);

    object_class_property_add_str(oc, "kernel",
        machine_get_kernel, machine_set_kernel, &error_abort);
    object_class_property_set_description(oc, "kernel",
        "Linux kernel image file", &error_abort);

    object_class_property_add_str(oc, "initrd",
        machine_get_initrd, machine_set_initrd, &error_abort);
    object_class_property_set_description(oc, "initrd",
        "Linux initial ramdisk file", &error_abort);

    object_class_property_add_str(oc, "append",
        machine_get_append, machine_set_append, &error_abort);
    object_class_property_set_description(oc, "append",
        "Linux kernel command line", &error_abort);

    object_class_property_add_str(oc, "dtb",
        machine_get_dtb, machine_set_dtb, &error_abort);
    object_class_property_set_description(oc, "dtb",
        "Linux kernel device tree file", &error_abort);

    object_class_property_add_str(oc, "dumpdtb",
        machine_get_dumpdtb, machine_set_dumpdtb, &error_abort);
    object_class_property_set_description(oc, "dumpdtb",
        "Dump current dtb to a file and quit", &error_abort);

    object_class_property_add(oc, "phandle-start", "int",
        machine_get_phandle_start, machine_set_phandle_start,
        NULL, NULL, &error_abort);
    object_class_property_set_description(oc, "phandle-start",
            "The first phandle ID we may generate dynamically", &error_abort);

    object_class_property_add_str(oc, "dt-compatible",
        machine_get_dt_compatible, machine_set_dt_compatible, &error_abort);
    object_class_property_set_description(oc, "dt-compatible",
        "Overrides the \"compatible\" property of the dt root node",
        &error_abort);

    object_class_property_add_bool(oc, "dump-guest-core",
        machine_get_dump_guest_core, machine_set_dump_guest_core, &error_abort);
    object_class_property_set_description(oc, "dump-guest-core",
        "Include guest memory in  a core dump", &error_abort);

    object_class_property_add_bool(oc, "mem-merge",
        machine_get_mem_merge, machine_set_mem_merge, &error_abort);
    object_class_property_set_description(oc, "mem-merge",
        "Enable/disable memory merge support", &error_abort);

    object_class_property_add_bool(oc, "usb",
        machine_get_usb, machine_set_usb, &error_abort);
    object_class_property_set_description(oc, "usb",
        "Set on/off to enable/disable usb", &error_abort);

    object_class_property_add_bool(oc, "graphics",
        machine_get_graphics, machine_set_graphics, &error_abort);
    object_class_property_set_description(oc, "graphics",
        "Set on/off to enable/disable graphics emulation", &error_abort);

    object_class_property_add_bool(oc, "igd-passthru",
        machine_get_igd_gfx_passthru, machine_set_igd_gfx_passthru,
        &error_abort);
    object_class_property_set_description(oc, "igd-passthru",
        "Set on/off to enable/disable igd passthrou", &error_abort);

    object_class_property_add_str(oc, "firmware",
        machine_get_firmware, machine_set_firmware,
        &error_abort);
    object_class_property_set_description(oc, "firmware",
        "Firmware image", &error_abort);

    object_class_property_add_bool(oc, "suppress-vmdesc",
        machine_get_suppress_vmdesc, machine_set_suppress_vmdesc,
        &error_abort);
    object_class_property_set_description(oc, "suppress-vmdesc",
        "Set on to disable self-describing migration", &error_abort);

    object_class_property_add_bool(oc, "enforce-config-section",
        machine_get_enforce_config_section, machine_set_enforce_config_section,
        &error_abort);
    object_class_property_set_description(oc, "enforce-config-section",
        "Set on to enforce configuration section migration", &error_abort);
}

static void machine_class_base_init(ObjectClass *oc, void *data)
{
    if (!object_class_is_abstract(oc)) {
        MachineClass *mc = MACHINE_CLASS(oc);
        const char *cname = object_class_get_name(oc);
        assert(g_str_has_suffix(cname, TYPE_MACHINE_SUFFIX));
        mc->name = g_strndup(cname,
                            strlen(cname) - strlen(TYPE_MACHINE_SUFFIX));
    }
}

static void machine_initfn(Object *obj)
{
    MachineState *ms = MACHINE(obj);

    ms->kernel_irqchip_allowed = true;
    ms->kvm_shadow_mem = -1;
    ms->dump_guest_core = true;
    ms->mem_merge = true;
    ms->enable_graphics = true;

    /* Register notifier when init is done for sysbus sanity checks */
    ms->sysbus_notifier.notify = machine_init_notify;
    qemu_add_machine_init_done_notifier(&ms->sysbus_notifier);
}

static void machine_finalize(Object *obj)
{
    MachineState *ms = MACHINE(obj);

    g_free(ms->accel);
    g_free(ms->kernel_filename);
    g_free(ms->initrd_filename);
    g_free(ms->kernel_cmdline);
    g_free(ms->dtb);
    g_free(ms->dumpdtb);
    g_free(ms->dt_compatible);
    g_free(ms->firmware);
}

bool machine_usb(MachineState *machine)
{
    return machine->usb;
}

bool machine_kernel_irqchip_allowed(MachineState *machine)
{
    return machine->kernel_irqchip_allowed;
}

bool machine_kernel_irqchip_required(MachineState *machine)
{
    return machine->kernel_irqchip_required;
}

bool machine_kernel_irqchip_split(MachineState *machine)
{
    return machine->kernel_irqchip_split;
}

int machine_kvm_shadow_mem(MachineState *machine)
{
    return machine->kvm_shadow_mem;
}

int machine_phandle_start(MachineState *machine)
{
    return machine->phandle_start;
}

bool machine_dump_guest_core(MachineState *machine)
{
    return machine->dump_guest_core;
}

bool machine_mem_merge(MachineState *machine)
{
    return machine->mem_merge;
}

static char *cpu_slot_to_string(const CPUArchId *cpu)
{
    GString *s = g_string_new(NULL);
    if (cpu->props.has_socket_id) {
        g_string_append_printf(s, "socket-id: %"PRId64, cpu->props.socket_id);
    }
    if (cpu->props.has_core_id) {
        if (s->len) {
            g_string_append_printf(s, ", ");
        }
        g_string_append_printf(s, "core-id: %"PRId64, cpu->props.core_id);
    }
    if (cpu->props.has_thread_id) {
        if (s->len) {
            g_string_append_printf(s, ", ");
        }
        g_string_append_printf(s, "thread-id: %"PRId64, cpu->props.thread_id);
    }
    return g_string_free(s, false);
}

static void machine_numa_finish_init(MachineState *machine)
{
    int i;
    bool default_mapping;
    GString *s = g_string_new(NULL);
    MachineClass *mc = MACHINE_GET_CLASS(machine);
    const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(machine);

    assert(nb_numa_nodes);
    for (i = 0; i < possible_cpus->len; i++) {
        if (possible_cpus->cpus[i].props.has_node_id) {
            break;
        }
    }
    default_mapping = (i == possible_cpus->len);

    for (i = 0; i < possible_cpus->len; i++) {
        const CPUArchId *cpu_slot = &possible_cpus->cpus[i];

        if (!cpu_slot->props.has_node_id) {
            /* fetch default mapping from board and enable it */
            CpuInstanceProperties props = cpu_slot->props;

            props.node_id = mc->get_default_cpu_node_id(machine, i);
            if (!default_mapping) {
                /* record slots with not set mapping,
                 * TODO: make it hard error in future */
                char *cpu_str = cpu_slot_to_string(cpu_slot);
                g_string_append_printf(s, "%sCPU %d [%s]",
                                       s->len ? ", " : "", i, cpu_str);
                g_free(cpu_str);

                /* non mapped cpus used to fallback to node 0 */
                props.node_id = 0;
            }

            props.has_node_id = true;
            machine_set_cpu_numa_node(machine, &props, &error_fatal);
        }
    }
    if (s->len && !qtest_enabled()) {
        warn_report("CPU(s) not present in any NUMA nodes: %s",
                    s->str);
        warn_report("All CPU(s) up to maxcpus should be described "
                    "in NUMA config, ability to start up with partial NUMA "
                    "mappings is obsoleted and will be removed in future");
    }
    g_string_free(s, true);
}

void machine_run_board_init(MachineState *machine)
{
    MachineClass *machine_class = MACHINE_GET_CLASS(machine);

    if (nb_numa_nodes) {
        machine_numa_finish_init(machine);
    }

    /* If the machine supports the valid_cpu_types check and the user
     * specified a CPU with -cpu check here that the user CPU is supported.
     */
    if (machine_class->valid_cpu_types && machine->cpu_type) {
        ObjectClass *class = object_class_by_name(machine->cpu_type);
        int i;

        for (i = 0; machine_class->valid_cpu_types[i]; i++) {
            if (object_class_dynamic_cast(class,
                                          machine_class->valid_cpu_types[i])) {
                /* The user specificed CPU is in the valid field, we are
                 * good to go.
                 */
                break;
            }
        }

        if (!machine_class->valid_cpu_types[i]) {
            /* The user specified CPU is not valid */
            error_report("Invalid CPU type: %s", machine->cpu_type);
            error_printf("The valid types are: %s",
                         machine_class->valid_cpu_types[0]);
            for (i = 1; machine_class->valid_cpu_types[i]; i++) {
                error_printf(", %s", machine_class->valid_cpu_types[i]);
            }
            error_printf("\n");

            exit(1);
        }
    }

    machine_class->init(machine);
}

static void machine_class_finalize(ObjectClass *klass, void *data)
{
    MachineClass *mc = MACHINE_CLASS(klass);

    if (mc->compat_props) {
        g_array_free(mc->compat_props, true);
    }
    g_free(mc->name);
}

void machine_register_compat_props(MachineState *machine)
{
    MachineClass *mc = MACHINE_GET_CLASS(machine);
    int i;
    GlobalProperty *p;

    if (!mc->compat_props) {
        return;
    }

    for (i = 0; i < mc->compat_props->len; i++) {
        p = g_array_index(mc->compat_props, GlobalProperty *, i);
        /* Machine compat_props must never cause errors: */
        p->errp = &error_abort;
        qdev_prop_register_global(p);
    }
}

static const TypeInfo machine_info = {
    .name = TYPE_MACHINE,
    .parent = TYPE_OBJECT,
    .abstract = true,
    .class_size = sizeof(MachineClass),
    .class_init    = machine_class_init,
    .class_base_init = machine_class_base_init,
    .class_finalize = machine_class_finalize,
    .instance_size = sizeof(MachineState),
    .instance_init = machine_initfn,
    .instance_finalize = machine_finalize,
};

static void machine_register_types(void)
{
    type_register_static(&machine_info);
}

type_init(machine_register_types)