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
30GlobalProperty hw_compat_4_1[] = {
31 { "virtio-pci", "x-pcie-flr-init", "off" },
32};
33const size_t hw_compat_4_1_len = G_N_ELEMENTS(hw_compat_4_1);
34
35GlobalProperty hw_compat_4_0[] = {
36 { "VGA", "edid", "false" },
37 { "secondary-vga", "edid", "false" },
38 { "bochs-display", "edid", "false" },
39 { "virtio-vga", "edid", "false" },
40 { "virtio-gpu", "edid", "false" },
41 { "virtio-device", "use-started", "false" },
42 { "virtio-balloon-device", "qemu-4-0-config-size", "true" },
43 { "pl031", "migrate-tick-offset", "false" },
44};
45const size_t hw_compat_4_0_len = G_N_ELEMENTS(hw_compat_4_0);
46
47GlobalProperty hw_compat_3_1[] = {
48 { "pcie-root-port", "x-speed", "2_5" },
49 { "pcie-root-port", "x-width", "1" },
50 { "memory-backend-file", "x-use-canonical-path-for-ramblock-id", "true" },
51 { "memory-backend-memfd", "x-use-canonical-path-for-ramblock-id", "true" },
52 { "tpm-crb", "ppi", "false" },
53 { "tpm-tis", "ppi", "false" },
54 { "usb-kbd", "serial", "42" },
55 { "usb-mouse", "serial", "42" },
56 { "usb-tablet", "serial", "42" },
57 { "virtio-blk-device", "discard", "false" },
58 { "virtio-blk-device", "write-zeroes", "false" },
59 { "virtio-balloon-device", "qemu-4-0-config-size", "false" },
60 { "pcie-root-port-base", "disable-acs", "true" }, /* Added in 4.1 */
61};
62const size_t hw_compat_3_1_len = G_N_ELEMENTS(hw_compat_3_1);
63
64GlobalProperty hw_compat_3_0[] = {};
65const size_t hw_compat_3_0_len = G_N_ELEMENTS(hw_compat_3_0);
66
67GlobalProperty hw_compat_2_12[] = {
68 { "migration", "decompress-error-check", "off" },
69 { "hda-audio", "use-timer", "false" },
70 { "cirrus-vga", "global-vmstate", "true" },
71 { "VGA", "global-vmstate", "true" },
72 { "vmware-svga", "global-vmstate", "true" },
73 { "qxl-vga", "global-vmstate", "true" },
74};
75const size_t hw_compat_2_12_len = G_N_ELEMENTS(hw_compat_2_12);
76
77GlobalProperty hw_compat_2_11[] = {
78 { "hpet", "hpet-offset-saved", "false" },
79 { "virtio-blk-pci", "vectors", "2" },
80 { "vhost-user-blk-pci", "vectors", "2" },
81 { "e1000", "migrate_tso_props", "off" },
82};
83const size_t hw_compat_2_11_len = G_N_ELEMENTS(hw_compat_2_11);
84
85GlobalProperty hw_compat_2_10[] = {
86 { "virtio-mouse-device", "wheel-axis", "false" },
87 { "virtio-tablet-device", "wheel-axis", "false" },
88};
89const size_t hw_compat_2_10_len = G_N_ELEMENTS(hw_compat_2_10);
90
91GlobalProperty hw_compat_2_9[] = {
92 { "pci-bridge", "shpc", "off" },
93 { "intel-iommu", "pt", "off" },
94 { "virtio-net-device", "x-mtu-bypass-backend", "off" },
95 { "pcie-root-port", "x-migrate-msix", "false" },
96};
97const size_t hw_compat_2_9_len = G_N_ELEMENTS(hw_compat_2_9);
98
99GlobalProperty hw_compat_2_8[] = {
100 { "fw_cfg_mem", "x-file-slots", "0x10" },
101 { "fw_cfg_io", "x-file-slots", "0x10" },
102 { "pflash_cfi01", "old-multiple-chip-handling", "on" },
103 { "pci-bridge", "shpc", "on" },
104 { TYPE_PCI_DEVICE, "x-pcie-extcap-init", "off" },
105 { "virtio-pci", "x-pcie-deverr-init", "off" },
106 { "virtio-pci", "x-pcie-lnkctl-init", "off" },
107 { "virtio-pci", "x-pcie-pm-init", "off" },
108 { "cirrus-vga", "vgamem_mb", "8" },
109 { "isa-cirrus-vga", "vgamem_mb", "8" },
110};
111const size_t hw_compat_2_8_len = G_N_ELEMENTS(hw_compat_2_8);
112
113GlobalProperty hw_compat_2_7[] = {
114 { "virtio-pci", "page-per-vq", "on" },
115 { "virtio-serial-device", "emergency-write", "off" },
116 { "ioapic", "version", "0x11" },
117 { "intel-iommu", "x-buggy-eim", "true" },
118 { "virtio-pci", "x-ignore-backend-features", "on" },
119};
120const size_t hw_compat_2_7_len = G_N_ELEMENTS(hw_compat_2_7);
121
122GlobalProperty hw_compat_2_6[] = {
123 { "virtio-mmio", "format_transport_address", "off" },
124 /* Optional because not all virtio-pci devices support legacy mode */
125 { "virtio-pci", "disable-modern", "on", .optional = true },
126 { "virtio-pci", "disable-legacy", "off", .optional = true },
127};
128const size_t hw_compat_2_6_len = G_N_ELEMENTS(hw_compat_2_6);
129
130GlobalProperty hw_compat_2_5[] = {
131 { "isa-fdc", "fallback", "144" },
132 { "pvscsi", "x-old-pci-configuration", "on" },
133 { "pvscsi", "x-disable-pcie", "on" },
134 { "vmxnet3", "x-old-msi-offsets", "on" },
135 { "vmxnet3", "x-disable-pcie", "on" },
136};
137const size_t hw_compat_2_5_len = G_N_ELEMENTS(hw_compat_2_5);
138
139GlobalProperty hw_compat_2_4[] = {
140 { "virtio-blk-device", "scsi", "true" },
141 { "e1000", "extra_mac_registers", "off" },
142 { "virtio-pci", "x-disable-pcie", "on" },
143 { "virtio-pci", "migrate-extra", "off" },
144 { "fw_cfg_mem", "dma_enabled", "off" },
145 { "fw_cfg_io", "dma_enabled", "off" }
146};
147const size_t hw_compat_2_4_len = G_N_ELEMENTS(hw_compat_2_4);
148
149GlobalProperty hw_compat_2_3[] = {
150 { "virtio-blk-pci", "any_layout", "off" },
151 { "virtio-balloon-pci", "any_layout", "off" },
152 { "virtio-serial-pci", "any_layout", "off" },
153 { "virtio-9p-pci", "any_layout", "off" },
154 { "virtio-rng-pci", "any_layout", "off" },
155 { TYPE_PCI_DEVICE, "x-pcie-lnksta-dllla", "off" },
156 { "migration", "send-configuration", "off" },
157 { "migration", "send-section-footer", "off" },
158 { "migration", "store-global-state", "off" },
159};
160const size_t hw_compat_2_3_len = G_N_ELEMENTS(hw_compat_2_3);
161
162GlobalProperty hw_compat_2_2[] = {};
163const size_t hw_compat_2_2_len = G_N_ELEMENTS(hw_compat_2_2);
164
165GlobalProperty hw_compat_2_1[] = {
166 { "intel-hda", "old_msi_addr", "on" },
167 { "VGA", "qemu-extended-regs", "off" },
168 { "secondary-vga", "qemu-extended-regs", "off" },
169 { "virtio-scsi-pci", "any_layout", "off" },
170 { "usb-mouse", "usb_version", "1" },
171 { "usb-kbd", "usb_version", "1" },
172 { "virtio-pci", "virtio-pci-bus-master-bug-migration", "on" },
173};
174const size_t hw_compat_2_1_len = G_N_ELEMENTS(hw_compat_2_1);
175
176static char *machine_get_accel(Object *obj, Error **errp)
177{
178 MachineState *ms = MACHINE(obj);
179
180 return g_strdup(ms->accel);
181}
182
183static void machine_set_accel(Object *obj, const char *value, Error **errp)
184{
185 MachineState *ms = MACHINE(obj);
186
187 g_free(ms->accel);
188 ms->accel = g_strdup(value);
189}
190
191static void machine_set_kernel_irqchip(Object *obj, Visitor *v,
192 const char *name, void *opaque,
193 Error **errp)
194{
195 Error *err = NULL;
196 MachineState *ms = MACHINE(obj);
197 OnOffSplit mode;
198
199 visit_type_OnOffSplit(v, name, &mode, &err);
200 if (err) {
201 error_propagate(errp, err);
202 return;
203 } else {
204 switch (mode) {
205 case ON_OFF_SPLIT_ON:
206 ms->kernel_irqchip_allowed = true;
207 ms->kernel_irqchip_required = true;
208 ms->kernel_irqchip_split = false;
209 break;
210 case ON_OFF_SPLIT_OFF:
211 ms->kernel_irqchip_allowed = false;
212 ms->kernel_irqchip_required = false;
213 ms->kernel_irqchip_split = false;
214 break;
215 case ON_OFF_SPLIT_SPLIT:
216 ms->kernel_irqchip_allowed = true;
217 ms->kernel_irqchip_required = true;
218 ms->kernel_irqchip_split = true;
219 break;
220 default:
221 /* The value was checked in visit_type_OnOffSplit() above. If
222 * we get here, then something is wrong in QEMU.
223 */
224 abort();
225 }
226 }
227}
228
229static void machine_get_kvm_shadow_mem(Object *obj, Visitor *v,
230 const char *name, void *opaque,
231 Error **errp)
232{
233 MachineState *ms = MACHINE(obj);
234 int64_t value = ms->kvm_shadow_mem;
235
236 visit_type_int(v, name, &value, errp);
237}
238
239static void machine_set_kvm_shadow_mem(Object *obj, Visitor *v,
240 const char *name, void *opaque,
241 Error **errp)
242{
243 MachineState *ms = MACHINE(obj);
244 Error *error = NULL;
245 int64_t value;
246
247 visit_type_int(v, name, &value, &error);
248 if (error) {
249 error_propagate(errp, error);
250 return;
251 }
252
253 ms->kvm_shadow_mem = value;
254}
255
256static char *machine_get_kernel(Object *obj, Error **errp)
257{
258 MachineState *ms = MACHINE(obj);
259
260 return g_strdup(ms->kernel_filename);
261}
262
263static void machine_set_kernel(Object *obj, const char *value, Error **errp)
264{
265 MachineState *ms = MACHINE(obj);
266
267 g_free(ms->kernel_filename);
268 ms->kernel_filename = g_strdup(value);
269}
270
271static char *machine_get_initrd(Object *obj, Error **errp)
272{
273 MachineState *ms = MACHINE(obj);
274
275 return g_strdup(ms->initrd_filename);
276}
277
278static void machine_set_initrd(Object *obj, const char *value, Error **errp)
279{
280 MachineState *ms = MACHINE(obj);
281
282 g_free(ms->initrd_filename);
283 ms->initrd_filename = g_strdup(value);
284}
285
286static char *machine_get_append(Object *obj, Error **errp)
287{
288 MachineState *ms = MACHINE(obj);
289
290 return g_strdup(ms->kernel_cmdline);
291}
292
293static void machine_set_append(Object *obj, const char *value, Error **errp)
294{
295 MachineState *ms = MACHINE(obj);
296
297 g_free(ms->kernel_cmdline);
298 ms->kernel_cmdline = g_strdup(value);
299}
300
301static char *machine_get_dtb(Object *obj, Error **errp)
302{
303 MachineState *ms = MACHINE(obj);
304
305 return g_strdup(ms->dtb);
306}
307
308static void machine_set_dtb(Object *obj, const char *value, Error **errp)
309{
310 MachineState *ms = MACHINE(obj);
311
312 g_free(ms->dtb);
313 ms->dtb = g_strdup(value);
314}
315
316static char *machine_get_dumpdtb(Object *obj, Error **errp)
317{
318 MachineState *ms = MACHINE(obj);
319
320 return g_strdup(ms->dumpdtb);
321}
322
323static void machine_set_dumpdtb(Object *obj, const char *value, Error **errp)
324{
325 MachineState *ms = MACHINE(obj);
326
327 g_free(ms->dumpdtb);
328 ms->dumpdtb = g_strdup(value);
329}
330
331static void machine_get_phandle_start(Object *obj, Visitor *v,
332 const char *name, void *opaque,
333 Error **errp)
334{
335 MachineState *ms = MACHINE(obj);
336 int64_t value = ms->phandle_start;
337
338 visit_type_int(v, name, &value, errp);
339}
340
341static void machine_set_phandle_start(Object *obj, Visitor *v,
342 const char *name, void *opaque,
343 Error **errp)
344{
345 MachineState *ms = MACHINE(obj);
346 Error *error = NULL;
347 int64_t value;
348
349 visit_type_int(v, name, &value, &error);
350 if (error) {
351 error_propagate(errp, error);
352 return;
353 }
354
355 ms->phandle_start = value;
356}
357
358static char *machine_get_dt_compatible(Object *obj, Error **errp)
359{
360 MachineState *ms = MACHINE(obj);
361
362 return g_strdup(ms->dt_compatible);
363}
364
365static void machine_set_dt_compatible(Object *obj, const char *value, Error **errp)
366{
367 MachineState *ms = MACHINE(obj);
368
369 g_free(ms->dt_compatible);
370 ms->dt_compatible = g_strdup(value);
371}
372
373static bool machine_get_dump_guest_core(Object *obj, Error **errp)
374{
375 MachineState *ms = MACHINE(obj);
376
377 return ms->dump_guest_core;
378}
379
380static void machine_set_dump_guest_core(Object *obj, bool value, Error **errp)
381{
382 MachineState *ms = MACHINE(obj);
383
384 ms->dump_guest_core = value;
385}
386
387static bool machine_get_mem_merge(Object *obj, Error **errp)
388{
389 MachineState *ms = MACHINE(obj);
390
391 return ms->mem_merge;
392}
393
394static void machine_set_mem_merge(Object *obj, bool value, Error **errp)
395{
396 MachineState *ms = MACHINE(obj);
397
398 ms->mem_merge = value;
399}
400
401static bool machine_get_usb(Object *obj, Error **errp)
402{
403 MachineState *ms = MACHINE(obj);
404
405 return ms->usb;
406}
407
408static void machine_set_usb(Object *obj, bool value, Error **errp)
409{
410 MachineState *ms = MACHINE(obj);
411
412 ms->usb = value;
413 ms->usb_disabled = !value;
414}
415
416static bool machine_get_graphics(Object *obj, Error **errp)
417{
418 MachineState *ms = MACHINE(obj);
419
420 return ms->enable_graphics;
421}
422
423static void machine_set_graphics(Object *obj, bool value, Error **errp)
424{
425 MachineState *ms = MACHINE(obj);
426
427 ms->enable_graphics = value;
428}
429
430static bool machine_get_igd_gfx_passthru(Object *obj, Error **errp)
431{
432 MachineState *ms = MACHINE(obj);
433
434 return ms->igd_gfx_passthru;
435}
436
437static void machine_set_igd_gfx_passthru(Object *obj, bool value, Error **errp)
438{
439 MachineState *ms = MACHINE(obj);
440
441 ms->igd_gfx_passthru = value;
442}
443
444static char *machine_get_firmware(Object *obj, Error **errp)
445{
446 MachineState *ms = MACHINE(obj);
447
448 return g_strdup(ms->firmware);
449}
450
451static void machine_set_firmware(Object *obj, const char *value, Error **errp)
452{
453 MachineState *ms = MACHINE(obj);
454
455 g_free(ms->firmware);
456 ms->firmware = g_strdup(value);
457}
458
459static void machine_set_suppress_vmdesc(Object *obj, bool value, Error **errp)
460{
461 MachineState *ms = MACHINE(obj);
462
463 ms->suppress_vmdesc = value;
464}
465
466static bool machine_get_suppress_vmdesc(Object *obj, Error **errp)
467{
468 MachineState *ms = MACHINE(obj);
469
470 return ms->suppress_vmdesc;
471}
472
473static void machine_set_enforce_config_section(Object *obj, bool value,
474 Error **errp)
475{
476 MachineState *ms = MACHINE(obj);
477
478 warn_report("enforce-config-section is deprecated, please use "
479 "-global migration.send-configuration=on|off instead");
480
481 ms->enforce_config_section = value;
482}
483
484static bool machine_get_enforce_config_section(Object *obj, Error **errp)
485{
486 MachineState *ms = MACHINE(obj);
487
488 return ms->enforce_config_section;
489}
490
491static char *machine_get_memory_encryption(Object *obj, Error **errp)
492{
493 MachineState *ms = MACHINE(obj);
494
495 return g_strdup(ms->memory_encryption);
496}
497
498static void machine_set_memory_encryption(Object *obj, const char *value,
499 Error **errp)
500{
501 MachineState *ms = MACHINE(obj);
502
503 g_free(ms->memory_encryption);
504 ms->memory_encryption = g_strdup(value);
505}
506
507static bool machine_get_nvdimm(Object *obj, Error **errp)
508{
509 MachineState *ms = MACHINE(obj);
510
511 return ms->nvdimms_state->is_enabled;
512}
513
514static void machine_set_nvdimm(Object *obj, bool value, Error **errp)
515{
516 MachineState *ms = MACHINE(obj);
517
518 ms->nvdimms_state->is_enabled = value;
519}
520
521static char *machine_get_nvdimm_persistence(Object *obj, Error **errp)
522{
523 MachineState *ms = MACHINE(obj);
524
525 return g_strdup(ms->nvdimms_state->persistence_string);
526}
527
528static void machine_set_nvdimm_persistence(Object *obj, const char *value,
529 Error **errp)
530{
531 MachineState *ms = MACHINE(obj);
532 NVDIMMState *nvdimms_state = ms->nvdimms_state;
533
534 if (strcmp(value, "cpu") == 0) {
535 nvdimms_state->persistence = 3;
536 } else if (strcmp(value, "mem-ctrl") == 0) {
537 nvdimms_state->persistence = 2;
538 } else {
539 error_setg(errp, "-machine nvdimm-persistence=%s: unsupported option",
540 value);
541 return;
542 }
543
544 g_free(nvdimms_state->persistence_string);
545 nvdimms_state->persistence_string = g_strdup(value);
546}
547
548void machine_class_allow_dynamic_sysbus_dev(MachineClass *mc, const char *type)
549{
550 strList *item = g_new0(strList, 1);
551
552 item->value = g_strdup(type);
553 item->next = mc->allowed_dynamic_sysbus_devices;
554 mc->allowed_dynamic_sysbus_devices = item;
555}
556
557static void validate_sysbus_device(SysBusDevice *sbdev, void *opaque)
558{
559 MachineState *machine = opaque;
560 MachineClass *mc = MACHINE_GET_CLASS(machine);
561 bool allowed = false;
562 strList *wl;
563
564 for (wl = mc->allowed_dynamic_sysbus_devices;
565 !allowed && wl;
566 wl = wl->next) {
567 allowed |= !!object_dynamic_cast(OBJECT(sbdev), wl->value);
568 }
569
570 if (!allowed) {
571 error_report("Option '-device %s' cannot be handled by this machine",
572 object_class_get_name(object_get_class(OBJECT(sbdev))));
573 exit(1);
574 }
575}
576
577static void machine_init_notify(Notifier *notifier, void *data)
578{
579 MachineState *machine = MACHINE(qdev_get_machine());
580
581 /*
582 * Loop through all dynamically created sysbus devices and check if they are
583 * all allowed. If a device is not allowed, error out.
584 */
585 foreach_dynamic_sysbus_device(validate_sysbus_device, machine);
586}
587
588HotpluggableCPUList *machine_query_hotpluggable_cpus(MachineState *machine)
589{
590 int i;
591 HotpluggableCPUList *head = NULL;
592 MachineClass *mc = MACHINE_GET_CLASS(machine);
593
594 /* force board to initialize possible_cpus if it hasn't been done yet */
595 mc->possible_cpu_arch_ids(machine);
596
597 for (i = 0; i < machine->possible_cpus->len; i++) {
598 Object *cpu;
599 HotpluggableCPUList *list_item = g_new0(typeof(*list_item), 1);
600 HotpluggableCPU *cpu_item = g_new0(typeof(*cpu_item), 1);
601
602 cpu_item->type = g_strdup(machine->possible_cpus->cpus[i].type);
603 cpu_item->vcpus_count = machine->possible_cpus->cpus[i].vcpus_count;
604 cpu_item->props = g_memdup(&machine->possible_cpus->cpus[i].props,
605 sizeof(*cpu_item->props));
606
607 cpu = machine->possible_cpus->cpus[i].cpu;
608 if (cpu) {
609 cpu_item->has_qom_path = true;
610 cpu_item->qom_path = object_get_canonical_path(cpu);
611 }
612 list_item->value = cpu_item;
613 list_item->next = head;
614 head = list_item;
615 }
616 return head;
617}
618
619/**
620 * machine_set_cpu_numa_node:
621 * @machine: machine object to modify
622 * @props: specifies which cpu objects to assign to
623 * numa node specified by @props.node_id
624 * @errp: if an error occurs, a pointer to an area to store the error
625 *
626 * Associate NUMA node specified by @props.node_id with cpu slots that
627 * match socket/core/thread-ids specified by @props. It's recommended to use
628 * query-hotpluggable-cpus.props values to specify affected cpu slots,
629 * which would lead to exact 1:1 mapping of cpu slots to NUMA node.
630 *
631 * However for CLI convenience it's possible to pass in subset of properties,
632 * which would affect all cpu slots that match it.
633 * Ex for pc machine:
634 * -smp 4,cores=2,sockets=2 -numa node,nodeid=0 -numa node,nodeid=1 \
635 * -numa cpu,node-id=0,socket_id=0 \
636 * -numa cpu,node-id=1,socket_id=1
637 * will assign all child cores of socket 0 to node 0 and
638 * of socket 1 to node 1.
639 *
640 * On attempt of reassigning (already assigned) cpu slot to another NUMA node,
641 * return error.
642 * Empty subset is disallowed and function will return with error in this case.
643 */
644void machine_set_cpu_numa_node(MachineState *machine,
645 const CpuInstanceProperties *props, Error **errp)
646{
647 MachineClass *mc = MACHINE_GET_CLASS(machine);
648 bool match = false;
649 int i;
650
651 if (!mc->possible_cpu_arch_ids) {
652 error_setg(errp, "mapping of CPUs to NUMA node is not supported");
653 return;
654 }
655
656 /* disabling node mapping is not supported, forbid it */
657 assert(props->has_node_id);
658
659 /* force board to initialize possible_cpus if it hasn't been done yet */
660 mc->possible_cpu_arch_ids(machine);
661
662 for (i = 0; i < machine->possible_cpus->len; i++) {
663 CPUArchId *slot = &machine->possible_cpus->cpus[i];
664
665 /* reject unsupported by board properties */
666 if (props->has_thread_id && !slot->props.has_thread_id) {
667 error_setg(errp, "thread-id is not supported");
668 return;
669 }
670
671 if (props->has_core_id && !slot->props.has_core_id) {
672 error_setg(errp, "core-id is not supported");
673 return;
674 }
675
676 if (props->has_socket_id && !slot->props.has_socket_id) {
677 error_setg(errp, "socket-id is not supported");
678 return;
679 }
680
681 if (props->has_die_id && !slot->props.has_die_id) {
682 error_setg(errp, "die-id is not supported");
683 return;
684 }
685
686 /* skip slots with explicit mismatch */
687 if (props->has_thread_id && props->thread_id != slot->props.thread_id) {
688 continue;
689 }
690
691 if (props->has_core_id && props->core_id != slot->props.core_id) {
692 continue;
693 }
694
695 if (props->has_die_id && props->die_id != slot->props.die_id) {
696 continue;
697 }
698
699 if (props->has_socket_id && props->socket_id != slot->props.socket_id) {
700 continue;
701 }
702
703 /* reject assignment if slot is already assigned, for compatibility
704 * of legacy cpu_index mapping with SPAPR core based mapping do not
705 * error out if cpu thread and matched core have the same node-id */
706 if (slot->props.has_node_id &&
707 slot->props.node_id != props->node_id) {
708 error_setg(errp, "CPU is already assigned to node-id: %" PRId64,
709 slot->props.node_id);
710 return;
711 }
712
713 /* assign slot to node as it's matched '-numa cpu' key */
714 match = true;
715 slot->props.node_id = props->node_id;
716 slot->props.has_node_id = props->has_node_id;
717 }
718
719 if (!match) {
720 error_setg(errp, "no match found");
721 }
722}
723
724static void smp_parse(MachineState *ms, QemuOpts *opts)
725{
726 if (opts) {
727 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
728 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
729 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
730 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
731
732 /* compute missing values, prefer sockets over cores over threads */
733 if (cpus == 0 || sockets == 0) {
734 cores = cores > 0 ? cores : 1;
735 threads = threads > 0 ? threads : 1;
736 if (cpus == 0) {
737 sockets = sockets > 0 ? sockets : 1;
738 cpus = cores * threads * sockets;
739 } else {
740 ms->smp.max_cpus =
741 qemu_opt_get_number(opts, "maxcpus", cpus);
742 sockets = ms->smp.max_cpus / (cores * threads);
743 }
744 } else if (cores == 0) {
745 threads = threads > 0 ? threads : 1;
746 cores = cpus / (sockets * threads);
747 cores = cores > 0 ? cores : 1;
748 } else if (threads == 0) {
749 threads = cpus / (cores * sockets);
750 threads = threads > 0 ? threads : 1;
751 } else if (sockets * cores * threads < cpus) {
752 error_report("cpu topology: "
753 "sockets (%u) * cores (%u) * threads (%u) < "
754 "smp_cpus (%u)",
755 sockets, cores, threads, cpus);
756 exit(1);
757 }
758
759 ms->smp.max_cpus =
760 qemu_opt_get_number(opts, "maxcpus", cpus);
761
762 if (ms->smp.max_cpus < cpus) {
763 error_report("maxcpus must be equal to or greater than smp");
764 exit(1);
765 }
766
767 if (sockets * cores * threads > ms->smp.max_cpus) {
768 error_report("cpu topology: "
769 "sockets (%u) * cores (%u) * threads (%u) > "
770 "maxcpus (%u)",
771 sockets, cores, threads,
772 ms->smp.max_cpus);
773 exit(1);
774 }
775
776 if (sockets * cores * threads != ms->smp.max_cpus) {
777 warn_report("Invalid CPU topology deprecated: "
778 "sockets (%u) * cores (%u) * threads (%u) "
779 "!= maxcpus (%u)",
780 sockets, cores, threads,
781 ms->smp.max_cpus);
782 }
783
784 ms->smp.cpus = cpus;
785 ms->smp.cores = cores;
786 ms->smp.threads = threads;
787 }
788
789 if (ms->smp.cpus > 1) {
790 Error *blocker = NULL;
791 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
792 replay_add_blocker(blocker);
793 }
794}
795
796static void machine_class_init(ObjectClass *oc, void *data)
797{
798 MachineClass *mc = MACHINE_CLASS(oc);
799
800 /* Default 128 MB as guest ram size */
801 mc->default_ram_size = 128 * MiB;
802 mc->rom_file_has_mr = true;
803 mc->smp_parse = smp_parse;
804
805 /* numa node memory size aligned on 8MB by default.
806 * On Linux, each node's border has to be 8MB aligned
807 */
808 mc->numa_mem_align_shift = 23;
809 mc->numa_auto_assign_ram = numa_default_auto_assign_ram;
810
811 object_class_property_add_str(oc, "accel",
812 machine_get_accel, machine_set_accel, &error_abort);
813 object_class_property_set_description(oc, "accel",
814 "Accelerator list", &error_abort);
815
816 object_class_property_add(oc, "kernel-irqchip", "on|off|split",
817 NULL, machine_set_kernel_irqchip,
818 NULL, NULL, &error_abort);
819 object_class_property_set_description(oc, "kernel-irqchip",
820 "Configure KVM in-kernel irqchip", &error_abort);
821
822 object_class_property_add(oc, "kvm-shadow-mem", "int",
823 machine_get_kvm_shadow_mem, machine_set_kvm_shadow_mem,
824 NULL, NULL, &error_abort);
825 object_class_property_set_description(oc, "kvm-shadow-mem",
826 "KVM shadow MMU size", &error_abort);
827
828 object_class_property_add_str(oc, "kernel",
829 machine_get_kernel, machine_set_kernel, &error_abort);
830 object_class_property_set_description(oc, "kernel",
831 "Linux kernel image file", &error_abort);
832
833 object_class_property_add_str(oc, "initrd",
834 machine_get_initrd, machine_set_initrd, &error_abort);
835 object_class_property_set_description(oc, "initrd",
836 "Linux initial ramdisk file", &error_abort);
837
838 object_class_property_add_str(oc, "append",
839 machine_get_append, machine_set_append, &error_abort);
840 object_class_property_set_description(oc, "append",
841 "Linux kernel command line", &error_abort);
842
843 object_class_property_add_str(oc, "dtb",
844 machine_get_dtb, machine_set_dtb, &error_abort);
845 object_class_property_set_description(oc, "dtb",
846 "Linux kernel device tree file", &error_abort);
847
848 object_class_property_add_str(oc, "dumpdtb",
849 machine_get_dumpdtb, machine_set_dumpdtb, &error_abort);
850 object_class_property_set_description(oc, "dumpdtb",
851 "Dump current dtb to a file and quit", &error_abort);
852
853 object_class_property_add(oc, "phandle-start", "int",
854 machine_get_phandle_start, machine_set_phandle_start,
855 NULL, NULL, &error_abort);
856 object_class_property_set_description(oc, "phandle-start",
857 "The first phandle ID we may generate dynamically", &error_abort);
858
859 object_class_property_add_str(oc, "dt-compatible",
860 machine_get_dt_compatible, machine_set_dt_compatible, &error_abort);
861 object_class_property_set_description(oc, "dt-compatible",
862 "Overrides the \"compatible\" property of the dt root node",
863 &error_abort);
864
865 object_class_property_add_bool(oc, "dump-guest-core",
866 machine_get_dump_guest_core, machine_set_dump_guest_core, &error_abort);
867 object_class_property_set_description(oc, "dump-guest-core",
868 "Include guest memory in a core dump", &error_abort);
869
870 object_class_property_add_bool(oc, "mem-merge",
871 machine_get_mem_merge, machine_set_mem_merge, &error_abort);
872 object_class_property_set_description(oc, "mem-merge",
873 "Enable/disable memory merge support", &error_abort);
874
875 object_class_property_add_bool(oc, "usb",
876 machine_get_usb, machine_set_usb, &error_abort);
877 object_class_property_set_description(oc, "usb",
878 "Set on/off to enable/disable usb", &error_abort);
879
880 object_class_property_add_bool(oc, "graphics",
881 machine_get_graphics, machine_set_graphics, &error_abort);
882 object_class_property_set_description(oc, "graphics",
883 "Set on/off to enable/disable graphics emulation", &error_abort);
884
885 object_class_property_add_bool(oc, "igd-passthru",
886 machine_get_igd_gfx_passthru, machine_set_igd_gfx_passthru,
887 &error_abort);
888 object_class_property_set_description(oc, "igd-passthru",
889 "Set on/off to enable/disable igd passthrou", &error_abort);
890
891 object_class_property_add_str(oc, "firmware",
892 machine_get_firmware, machine_set_firmware,
893 &error_abort);
894 object_class_property_set_description(oc, "firmware",
895 "Firmware image", &error_abort);
896
897 object_class_property_add_bool(oc, "suppress-vmdesc",
898 machine_get_suppress_vmdesc, machine_set_suppress_vmdesc,
899 &error_abort);
900 object_class_property_set_description(oc, "suppress-vmdesc",
901 "Set on to disable self-describing migration", &error_abort);
902
903 object_class_property_add_bool(oc, "enforce-config-section",
904 machine_get_enforce_config_section, machine_set_enforce_config_section,
905 &error_abort);
906 object_class_property_set_description(oc, "enforce-config-section",
907 "Set on to enforce configuration section migration", &error_abort);
908
909 object_class_property_add_str(oc, "memory-encryption",
910 machine_get_memory_encryption, machine_set_memory_encryption,
911 &error_abort);
912 object_class_property_set_description(oc, "memory-encryption",
913 "Set memory encryption object to use", &error_abort);
914}
915
916static void machine_class_base_init(ObjectClass *oc, void *data)
917{
918 if (!object_class_is_abstract(oc)) {
919 MachineClass *mc = MACHINE_CLASS(oc);
920 const char *cname = object_class_get_name(oc);
921 assert(g_str_has_suffix(cname, TYPE_MACHINE_SUFFIX));
922 mc->name = g_strndup(cname,
923 strlen(cname) - strlen(TYPE_MACHINE_SUFFIX));
924 mc->compat_props = g_ptr_array_new();
925 }
926}
927
928static void machine_initfn(Object *obj)
929{
930 MachineState *ms = MACHINE(obj);
931 MachineClass *mc = MACHINE_GET_CLASS(obj);
932
933 ms->kernel_irqchip_allowed = true;
934 ms->kernel_irqchip_split = mc->default_kernel_irqchip_split;
935 ms->kvm_shadow_mem = -1;
936 ms->dump_guest_core = true;
937 ms->mem_merge = true;
938 ms->enable_graphics = true;
939
940 if (mc->nvdimm_supported) {
941 Object *obj = OBJECT(ms);
942
943 ms->nvdimms_state = g_new0(NVDIMMState, 1);
944 object_property_add_bool(obj, "nvdimm",
945 machine_get_nvdimm, machine_set_nvdimm,
946 &error_abort);
947 object_property_set_description(obj, "nvdimm",
948 "Set on/off to enable/disable "
949 "NVDIMM instantiation", NULL);
950
951 object_property_add_str(obj, "nvdimm-persistence",
952 machine_get_nvdimm_persistence,
953 machine_set_nvdimm_persistence,
954 &error_abort);
955 object_property_set_description(obj, "nvdimm-persistence",
956 "Set NVDIMM persistence"
957 "Valid values are cpu, mem-ctrl",
958 NULL);
959 }
960
961 if (mc->numa_mem_supported) {
962 ms->numa_state = g_new0(NumaState, 1);
963 }
964
965 /* Register notifier when init is done for sysbus sanity checks */
966 ms->sysbus_notifier.notify = machine_init_notify;
967 qemu_add_machine_init_done_notifier(&ms->sysbus_notifier);
968}
969
970static void machine_finalize(Object *obj)
971{
972 MachineState *ms = MACHINE(obj);
973
974 g_free(ms->accel);
975 g_free(ms->kernel_filename);
976 g_free(ms->initrd_filename);
977 g_free(ms->kernel_cmdline);
978 g_free(ms->dtb);
979 g_free(ms->dumpdtb);
980 g_free(ms->dt_compatible);
981 g_free(ms->firmware);
982 g_free(ms->device_memory);
983 g_free(ms->nvdimms_state);
984 g_free(ms->numa_state);
985}
986
987bool machine_usb(MachineState *machine)
988{
989 return machine->usb;
990}
991
992bool machine_kernel_irqchip_allowed(MachineState *machine)
993{
994 return machine->kernel_irqchip_allowed;
995}
996
997bool machine_kernel_irqchip_required(MachineState *machine)
998{
999 return machine->kernel_irqchip_required;
1000}
1001
1002bool machine_kernel_irqchip_split(MachineState *machine)
1003{
1004 return machine->kernel_irqchip_split;
1005}
1006
1007int machine_kvm_shadow_mem(MachineState *machine)
1008{
1009 return machine->kvm_shadow_mem;
1010}
1011
1012int machine_phandle_start(MachineState *machine)
1013{
1014 return machine->phandle_start;
1015}
1016
1017bool machine_dump_guest_core(MachineState *machine)
1018{
1019 return machine->dump_guest_core;
1020}
1021
1022bool machine_mem_merge(MachineState *machine)
1023{
1024 return machine->mem_merge;
1025}
1026
1027static char *cpu_slot_to_string(const CPUArchId *cpu)
1028{
1029 GString *s = g_string_new(NULL);
1030 if (cpu->props.has_socket_id) {
1031 g_string_append_printf(s, "socket-id: %"PRId64, cpu->props.socket_id);
1032 }
1033 if (cpu->props.has_die_id) {
1034 g_string_append_printf(s, "die-id: %"PRId64, cpu->props.die_id);
1035 }
1036 if (cpu->props.has_core_id) {
1037 if (s->len) {
1038 g_string_append_printf(s, ", ");
1039 }
1040 g_string_append_printf(s, "core-id: %"PRId64, cpu->props.core_id);
1041 }
1042 if (cpu->props.has_thread_id) {
1043 if (s->len) {
1044 g_string_append_printf(s, ", ");
1045 }
1046 g_string_append_printf(s, "thread-id: %"PRId64, cpu->props.thread_id);
1047 }
1048 return g_string_free(s, false);
1049}
1050
1051static void machine_numa_finish_cpu_init(MachineState *machine)
1052{
1053 int i;
1054 bool default_mapping;
1055 GString *s = g_string_new(NULL);
1056 MachineClass *mc = MACHINE_GET_CLASS(machine);
1057 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(machine);
1058
1059 assert(machine->numa_state->num_nodes);
1060 for (i = 0; i < possible_cpus->len; i++) {
1061 if (possible_cpus->cpus[i].props.has_node_id) {
1062 break;
1063 }
1064 }
1065 default_mapping = (i == possible_cpus->len);
1066
1067 for (i = 0; i < possible_cpus->len; i++) {
1068 const CPUArchId *cpu_slot = &possible_cpus->cpus[i];
1069
1070 if (!cpu_slot->props.has_node_id) {
1071 /* fetch default mapping from board and enable it */
1072 CpuInstanceProperties props = cpu_slot->props;
1073
1074 props.node_id = mc->get_default_cpu_node_id(machine, i);
1075 if (!default_mapping) {
1076 /* record slots with not set mapping,
1077 * TODO: make it hard error in future */
1078 char *cpu_str = cpu_slot_to_string(cpu_slot);
1079 g_string_append_printf(s, "%sCPU %d [%s]",
1080 s->len ? ", " : "", i, cpu_str);
1081 g_free(cpu_str);
1082
1083 /* non mapped cpus used to fallback to node 0 */
1084 props.node_id = 0;
1085 }
1086
1087 props.has_node_id = true;
1088 machine_set_cpu_numa_node(machine, &props, &error_fatal);
1089 }
1090 }
1091 if (s->len && !qtest_enabled()) {
1092 warn_report("CPU(s) not present in any NUMA nodes: %s",
1093 s->str);
1094 warn_report("All CPU(s) up to maxcpus should be described "
1095 "in NUMA config, ability to start up with partial NUMA "
1096 "mappings is obsoleted and will be removed in future");
1097 }
1098 g_string_free(s, true);
1099}
1100
1101void machine_run_board_init(MachineState *machine)
1102{
1103 MachineClass *machine_class = MACHINE_GET_CLASS(machine);
1104
1105 if (machine_class->numa_mem_supported) {
1106 numa_complete_configuration(machine);
1107 if (machine->numa_state->num_nodes) {
1108 machine_numa_finish_cpu_init(machine);
1109 }
1110 }
1111
1112 /* If the machine supports the valid_cpu_types check and the user
1113 * specified a CPU with -cpu check here that the user CPU is supported.
1114 */
1115 if (machine_class->valid_cpu_types && machine->cpu_type) {
1116 ObjectClass *class = object_class_by_name(machine->cpu_type);
1117 int i;
1118
1119 for (i = 0; machine_class->valid_cpu_types[i]; i++) {
1120 if (object_class_dynamic_cast(class,
1121 machine_class->valid_cpu_types[i])) {
1122 /* The user specificed CPU is in the valid field, we are
1123 * good to go.
1124 */
1125 break;
1126 }
1127 }
1128
1129 if (!machine_class->valid_cpu_types[i]) {
1130 /* The user specified CPU is not valid */
1131 error_report("Invalid CPU type: %s", machine->cpu_type);
1132 error_printf("The valid types are: %s",
1133 machine_class->valid_cpu_types[0]);
1134 for (i = 1; machine_class->valid_cpu_types[i]; i++) {
1135 error_printf(", %s", machine_class->valid_cpu_types[i]);
1136 }
1137 error_printf("\n");
1138
1139 exit(1);
1140 }
1141 }
1142
1143 machine_class->init(machine);
1144}
1145
1146static const TypeInfo machine_info = {
1147 .name = TYPE_MACHINE,
1148 .parent = TYPE_OBJECT,
1149 .abstract = true,
1150 .class_size = sizeof(MachineClass),
1151 .class_init = machine_class_init,
1152 .class_base_init = machine_class_base_init,
1153 .instance_size = sizeof(MachineState),
1154 .instance_init = machine_initfn,
1155 .instance_finalize = machine_finalize,
1156};
1157
1158static void machine_register_types(void)
1159{
1160 type_register_static(&machine_info);
1161}
1162
1163type_init(machine_register_types)
1164