xref: /openbmc/qemu/hw/core/machine.c (revision 2d0ed5e642d597f031a35c6f804b49ec438aef22)
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 #include "hw/pci/pci.h"
25 
26 GlobalProperty hw_compat_3_1[] = {
27     { "pcie-root-port", "x-speed", "2_5" },
28     { "pcie-root-port", "x-width", "1" },
29     { "memory-backend-file", "x-use-canonical-path-for-ramblock-id", "true" },
30     { "memory-backend-memfd", "x-use-canonical-path-for-ramblock-id", "true" },
31 };
32 const size_t hw_compat_3_1_len = G_N_ELEMENTS(hw_compat_3_1);
33 
34 GlobalProperty hw_compat_3_0[] = {};
35 const size_t hw_compat_3_0_len = G_N_ELEMENTS(hw_compat_3_0);
36 
37 GlobalProperty hw_compat_2_12[] = {
38     { "migration", "decompress-error-check", "off" },
39     { "hda-audio", "use-timer", "false" },
40     { "cirrus-vga", "global-vmstate", "true" },
41     { "VGA", "global-vmstate", "true" },
42     { "vmware-svga", "global-vmstate", "true" },
43     { "qxl-vga", "global-vmstate", "true" },
44 };
45 const size_t hw_compat_2_12_len = G_N_ELEMENTS(hw_compat_2_12);
46 
47 GlobalProperty hw_compat_2_11[] = {
48     { "hpet", "hpet-offset-saved", "false" },
49     { "virtio-blk-pci", "vectors", "2" },
50     { "vhost-user-blk-pci", "vectors", "2" },
51     { "e1000", "migrate_tso_props", "off" },
52 };
53 const size_t hw_compat_2_11_len = G_N_ELEMENTS(hw_compat_2_11);
54 
55 GlobalProperty hw_compat_2_10[] = {
56     { "virtio-mouse-device", "wheel-axis", "false" },
57     { "virtio-tablet-device", "wheel-axis", "false" },
58 };
59 const size_t hw_compat_2_10_len = G_N_ELEMENTS(hw_compat_2_10);
60 
61 GlobalProperty hw_compat_2_9[] = {
62     { "pci-bridge", "shpc", "off" },
63     { "intel-iommu", "pt", "off" },
64     { "virtio-net-device", "x-mtu-bypass-backend", "off" },
65     { "pcie-root-port", "x-migrate-msix", "false" },
66 };
67 const size_t hw_compat_2_9_len = G_N_ELEMENTS(hw_compat_2_9);
68 
69 GlobalProperty hw_compat_2_8[] = {
70     { "fw_cfg_mem", "x-file-slots", "0x10" },
71     { "fw_cfg_io", "x-file-slots", "0x10" },
72     { "pflash_cfi01", "old-multiple-chip-handling", "on" },
73     { "pci-bridge", "shpc", "on" },
74     { TYPE_PCI_DEVICE, "x-pcie-extcap-init", "off" },
75     { "virtio-pci", "x-pcie-deverr-init", "off" },
76     { "virtio-pci", "x-pcie-lnkctl-init", "off" },
77     { "virtio-pci", "x-pcie-pm-init", "off" },
78     { "cirrus-vga", "vgamem_mb", "8" },
79     { "isa-cirrus-vga", "vgamem_mb", "8" },
80 };
81 const size_t hw_compat_2_8_len = G_N_ELEMENTS(hw_compat_2_8);
82 
83 GlobalProperty hw_compat_2_7[] = {
84     { "virtio-pci", "page-per-vq", "on" },
85     { "virtio-serial-device", "emergency-write", "off" },
86     { "ioapic", "version", "0x11" },
87     { "intel-iommu", "x-buggy-eim", "true" },
88     { "virtio-pci", "x-ignore-backend-features", "on" },
89 };
90 const size_t hw_compat_2_7_len = G_N_ELEMENTS(hw_compat_2_7);
91 
92 GlobalProperty hw_compat_2_6[] = {
93     { "virtio-mmio", "format_transport_address", "off" },
94     { "virtio-pci", "disable-modern", "on" },
95     { "virtio-pci", "disable-legacy", "off" },
96 };
97 const size_t hw_compat_2_6_len = G_N_ELEMENTS(hw_compat_2_6);
98 
99 GlobalProperty hw_compat_2_5[] = {
100     { "isa-fdc", "fallback", "144" },
101     { "pvscsi", "x-old-pci-configuration", "on" },
102     { "pvscsi", "x-disable-pcie", "on" },
103     { "vmxnet3", "x-old-msi-offsets", "on" },
104     { "vmxnet3", "x-disable-pcie", "on" },
105 };
106 const size_t hw_compat_2_5_len = G_N_ELEMENTS(hw_compat_2_5);
107 
108 GlobalProperty hw_compat_2_4[] = {
109     { "virtio-blk-device", "scsi", "true" },
110     { "e1000", "extra_mac_registers", "off" },
111     { "virtio-pci", "x-disable-pcie", "on" },
112     { "virtio-pci", "migrate-extra", "off" },
113     { "fw_cfg_mem", "dma_enabled", "off" },
114     { "fw_cfg_io", "dma_enabled", "off" }
115 };
116 const size_t hw_compat_2_4_len = G_N_ELEMENTS(hw_compat_2_4);
117 
118 GlobalProperty hw_compat_2_3[] = {
119     { "virtio-blk-pci", "any_layout", "off" },
120     { "virtio-balloon-pci", "any_layout", "off" },
121     { "virtio-serial-pci", "any_layout", "off" },
122     { "virtio-9p-pci", "any_layout", "off" },
123     { "virtio-rng-pci", "any_layout", "off" },
124     { TYPE_PCI_DEVICE, "x-pcie-lnksta-dllla", "off" },
125     { "migration", "send-configuration", "off" },
126     { "migration", "send-section-footer", "off" },
127     { "migration", "store-global-state", "off" },
128 };
129 const size_t hw_compat_2_3_len = G_N_ELEMENTS(hw_compat_2_3);
130 
131 GlobalProperty hw_compat_2_2[] = {};
132 const size_t hw_compat_2_2_len = G_N_ELEMENTS(hw_compat_2_2);
133 
134 GlobalProperty hw_compat_2_1[] = {
135     { "intel-hda", "old_msi_addr", "on" },
136     { "VGA", "qemu-extended-regs", "off" },
137     { "secondary-vga", "qemu-extended-regs", "off" },
138     { "virtio-scsi-pci", "any_layout", "off" },
139     { "usb-mouse", "usb_version", "1" },
140     { "usb-kbd", "usb_version", "1" },
141     { "virtio-pci", "virtio-pci-bus-master-bug-migration", "on" },
142 };
143 const size_t hw_compat_2_1_len = G_N_ELEMENTS(hw_compat_2_1);
144 
145 static char *machine_get_accel(Object *obj, Error **errp)
146 {
147     MachineState *ms = MACHINE(obj);
148 
149     return g_strdup(ms->accel);
150 }
151 
152 static void machine_set_accel(Object *obj, const char *value, Error **errp)
153 {
154     MachineState *ms = MACHINE(obj);
155 
156     g_free(ms->accel);
157     ms->accel = g_strdup(value);
158 }
159 
160 static void machine_set_kernel_irqchip(Object *obj, Visitor *v,
161                                        const char *name, void *opaque,
162                                        Error **errp)
163 {
164     Error *err = NULL;
165     MachineState *ms = MACHINE(obj);
166     OnOffSplit mode;
167 
168     visit_type_OnOffSplit(v, name, &mode, &err);
169     if (err) {
170         error_propagate(errp, err);
171         return;
172     } else {
173         switch (mode) {
174         case ON_OFF_SPLIT_ON:
175             ms->kernel_irqchip_allowed = true;
176             ms->kernel_irqchip_required = true;
177             ms->kernel_irqchip_split = false;
178             break;
179         case ON_OFF_SPLIT_OFF:
180             ms->kernel_irqchip_allowed = false;
181             ms->kernel_irqchip_required = false;
182             ms->kernel_irqchip_split = false;
183             break;
184         case ON_OFF_SPLIT_SPLIT:
185             ms->kernel_irqchip_allowed = true;
186             ms->kernel_irqchip_required = true;
187             ms->kernel_irqchip_split = true;
188             break;
189         default:
190             /* The value was checked in visit_type_OnOffSplit() above. If
191              * we get here, then something is wrong in QEMU.
192              */
193             abort();
194         }
195     }
196 }
197 
198 static void machine_get_kvm_shadow_mem(Object *obj, Visitor *v,
199                                        const char *name, void *opaque,
200                                        Error **errp)
201 {
202     MachineState *ms = MACHINE(obj);
203     int64_t value = ms->kvm_shadow_mem;
204 
205     visit_type_int(v, name, &value, errp);
206 }
207 
208 static void machine_set_kvm_shadow_mem(Object *obj, Visitor *v,
209                                        const char *name, void *opaque,
210                                        Error **errp)
211 {
212     MachineState *ms = MACHINE(obj);
213     Error *error = NULL;
214     int64_t value;
215 
216     visit_type_int(v, name, &value, &error);
217     if (error) {
218         error_propagate(errp, error);
219         return;
220     }
221 
222     ms->kvm_shadow_mem = value;
223 }
224 
225 static char *machine_get_kernel(Object *obj, Error **errp)
226 {
227     MachineState *ms = MACHINE(obj);
228 
229     return g_strdup(ms->kernel_filename);
230 }
231 
232 static void machine_set_kernel(Object *obj, const char *value, Error **errp)
233 {
234     MachineState *ms = MACHINE(obj);
235 
236     g_free(ms->kernel_filename);
237     ms->kernel_filename = g_strdup(value);
238 }
239 
240 static char *machine_get_initrd(Object *obj, Error **errp)
241 {
242     MachineState *ms = MACHINE(obj);
243 
244     return g_strdup(ms->initrd_filename);
245 }
246 
247 static void machine_set_initrd(Object *obj, const char *value, Error **errp)
248 {
249     MachineState *ms = MACHINE(obj);
250 
251     g_free(ms->initrd_filename);
252     ms->initrd_filename = g_strdup(value);
253 }
254 
255 static char *machine_get_append(Object *obj, Error **errp)
256 {
257     MachineState *ms = MACHINE(obj);
258 
259     return g_strdup(ms->kernel_cmdline);
260 }
261 
262 static void machine_set_append(Object *obj, const char *value, Error **errp)
263 {
264     MachineState *ms = MACHINE(obj);
265 
266     g_free(ms->kernel_cmdline);
267     ms->kernel_cmdline = g_strdup(value);
268 }
269 
270 static char *machine_get_dtb(Object *obj, Error **errp)
271 {
272     MachineState *ms = MACHINE(obj);
273 
274     return g_strdup(ms->dtb);
275 }
276 
277 static void machine_set_dtb(Object *obj, const char *value, Error **errp)
278 {
279     MachineState *ms = MACHINE(obj);
280 
281     g_free(ms->dtb);
282     ms->dtb = g_strdup(value);
283 }
284 
285 static char *machine_get_dumpdtb(Object *obj, Error **errp)
286 {
287     MachineState *ms = MACHINE(obj);
288 
289     return g_strdup(ms->dumpdtb);
290 }
291 
292 static void machine_set_dumpdtb(Object *obj, const char *value, Error **errp)
293 {
294     MachineState *ms = MACHINE(obj);
295 
296     g_free(ms->dumpdtb);
297     ms->dumpdtb = g_strdup(value);
298 }
299 
300 static void machine_get_phandle_start(Object *obj, Visitor *v,
301                                       const char *name, void *opaque,
302                                       Error **errp)
303 {
304     MachineState *ms = MACHINE(obj);
305     int64_t value = ms->phandle_start;
306 
307     visit_type_int(v, name, &value, errp);
308 }
309 
310 static void machine_set_phandle_start(Object *obj, Visitor *v,
311                                       const char *name, void *opaque,
312                                       Error **errp)
313 {
314     MachineState *ms = MACHINE(obj);
315     Error *error = NULL;
316     int64_t value;
317 
318     visit_type_int(v, name, &value, &error);
319     if (error) {
320         error_propagate(errp, error);
321         return;
322     }
323 
324     ms->phandle_start = value;
325 }
326 
327 static char *machine_get_dt_compatible(Object *obj, Error **errp)
328 {
329     MachineState *ms = MACHINE(obj);
330 
331     return g_strdup(ms->dt_compatible);
332 }
333 
334 static void machine_set_dt_compatible(Object *obj, const char *value, Error **errp)
335 {
336     MachineState *ms = MACHINE(obj);
337 
338     g_free(ms->dt_compatible);
339     ms->dt_compatible = g_strdup(value);
340 }
341 
342 static bool machine_get_dump_guest_core(Object *obj, Error **errp)
343 {
344     MachineState *ms = MACHINE(obj);
345 
346     return ms->dump_guest_core;
347 }
348 
349 static void machine_set_dump_guest_core(Object *obj, bool value, Error **errp)
350 {
351     MachineState *ms = MACHINE(obj);
352 
353     ms->dump_guest_core = value;
354 }
355 
356 static bool machine_get_mem_merge(Object *obj, Error **errp)
357 {
358     MachineState *ms = MACHINE(obj);
359 
360     return ms->mem_merge;
361 }
362 
363 static void machine_set_mem_merge(Object *obj, bool value, Error **errp)
364 {
365     MachineState *ms = MACHINE(obj);
366 
367     ms->mem_merge = value;
368 }
369 
370 static bool machine_get_usb(Object *obj, Error **errp)
371 {
372     MachineState *ms = MACHINE(obj);
373 
374     return ms->usb;
375 }
376 
377 static void machine_set_usb(Object *obj, bool value, Error **errp)
378 {
379     MachineState *ms = MACHINE(obj);
380 
381     ms->usb = value;
382     ms->usb_disabled = !value;
383 }
384 
385 static bool machine_get_graphics(Object *obj, Error **errp)
386 {
387     MachineState *ms = MACHINE(obj);
388 
389     return ms->enable_graphics;
390 }
391 
392 static void machine_set_graphics(Object *obj, bool value, Error **errp)
393 {
394     MachineState *ms = MACHINE(obj);
395 
396     ms->enable_graphics = value;
397 }
398 
399 static bool machine_get_igd_gfx_passthru(Object *obj, Error **errp)
400 {
401     MachineState *ms = MACHINE(obj);
402 
403     return ms->igd_gfx_passthru;
404 }
405 
406 static void machine_set_igd_gfx_passthru(Object *obj, bool value, Error **errp)
407 {
408     MachineState *ms = MACHINE(obj);
409 
410     ms->igd_gfx_passthru = value;
411 }
412 
413 static char *machine_get_firmware(Object *obj, Error **errp)
414 {
415     MachineState *ms = MACHINE(obj);
416 
417     return g_strdup(ms->firmware);
418 }
419 
420 static void machine_set_firmware(Object *obj, const char *value, Error **errp)
421 {
422     MachineState *ms = MACHINE(obj);
423 
424     g_free(ms->firmware);
425     ms->firmware = g_strdup(value);
426 }
427 
428 static void machine_set_suppress_vmdesc(Object *obj, bool value, Error **errp)
429 {
430     MachineState *ms = MACHINE(obj);
431 
432     ms->suppress_vmdesc = value;
433 }
434 
435 static bool machine_get_suppress_vmdesc(Object *obj, Error **errp)
436 {
437     MachineState *ms = MACHINE(obj);
438 
439     return ms->suppress_vmdesc;
440 }
441 
442 static void machine_set_enforce_config_section(Object *obj, bool value,
443                                              Error **errp)
444 {
445     MachineState *ms = MACHINE(obj);
446 
447     warn_report("enforce-config-section is deprecated, please use "
448                 "-global migration.send-configuration=on|off instead");
449 
450     ms->enforce_config_section = value;
451 }
452 
453 static bool machine_get_enforce_config_section(Object *obj, Error **errp)
454 {
455     MachineState *ms = MACHINE(obj);
456 
457     return ms->enforce_config_section;
458 }
459 
460 static char *machine_get_memory_encryption(Object *obj, Error **errp)
461 {
462     MachineState *ms = MACHINE(obj);
463 
464     return g_strdup(ms->memory_encryption);
465 }
466 
467 static void machine_set_memory_encryption(Object *obj, const char *value,
468                                         Error **errp)
469 {
470     MachineState *ms = MACHINE(obj);
471 
472     g_free(ms->memory_encryption);
473     ms->memory_encryption = g_strdup(value);
474 }
475 
476 void machine_class_allow_dynamic_sysbus_dev(MachineClass *mc, const char *type)
477 {
478     strList *item = g_new0(strList, 1);
479 
480     item->value = g_strdup(type);
481     item->next = mc->allowed_dynamic_sysbus_devices;
482     mc->allowed_dynamic_sysbus_devices = item;
483 }
484 
485 static void validate_sysbus_device(SysBusDevice *sbdev, void *opaque)
486 {
487     MachineState *machine = opaque;
488     MachineClass *mc = MACHINE_GET_CLASS(machine);
489     bool allowed = false;
490     strList *wl;
491 
492     for (wl = mc->allowed_dynamic_sysbus_devices;
493          !allowed && wl;
494          wl = wl->next) {
495         allowed |= !!object_dynamic_cast(OBJECT(sbdev), wl->value);
496     }
497 
498     if (!allowed) {
499         error_report("Option '-device %s' cannot be handled by this machine",
500                      object_class_get_name(object_get_class(OBJECT(sbdev))));
501         exit(1);
502     }
503 }
504 
505 static void machine_init_notify(Notifier *notifier, void *data)
506 {
507     MachineState *machine = MACHINE(qdev_get_machine());
508 
509     /*
510      * Loop through all dynamically created sysbus devices and check if they are
511      * all allowed.  If a device is not allowed, error out.
512      */
513     foreach_dynamic_sysbus_device(validate_sysbus_device, machine);
514 }
515 
516 HotpluggableCPUList *machine_query_hotpluggable_cpus(MachineState *machine)
517 {
518     int i;
519     HotpluggableCPUList *head = NULL;
520     MachineClass *mc = MACHINE_GET_CLASS(machine);
521 
522     /* force board to initialize possible_cpus if it hasn't been done yet */
523     mc->possible_cpu_arch_ids(machine);
524 
525     for (i = 0; i < machine->possible_cpus->len; i++) {
526         Object *cpu;
527         HotpluggableCPUList *list_item = g_new0(typeof(*list_item), 1);
528         HotpluggableCPU *cpu_item = g_new0(typeof(*cpu_item), 1);
529 
530         cpu_item->type = g_strdup(machine->possible_cpus->cpus[i].type);
531         cpu_item->vcpus_count = machine->possible_cpus->cpus[i].vcpus_count;
532         cpu_item->props = g_memdup(&machine->possible_cpus->cpus[i].props,
533                                    sizeof(*cpu_item->props));
534 
535         cpu = machine->possible_cpus->cpus[i].cpu;
536         if (cpu) {
537             cpu_item->has_qom_path = true;
538             cpu_item->qom_path = object_get_canonical_path(cpu);
539         }
540         list_item->value = cpu_item;
541         list_item->next = head;
542         head = list_item;
543     }
544     return head;
545 }
546 
547 /**
548  * machine_set_cpu_numa_node:
549  * @machine: machine object to modify
550  * @props: specifies which cpu objects to assign to
551  *         numa node specified by @props.node_id
552  * @errp: if an error occurs, a pointer to an area to store the error
553  *
554  * Associate NUMA node specified by @props.node_id with cpu slots that
555  * match socket/core/thread-ids specified by @props. It's recommended to use
556  * query-hotpluggable-cpus.props values to specify affected cpu slots,
557  * which would lead to exact 1:1 mapping of cpu slots to NUMA node.
558  *
559  * However for CLI convenience it's possible to pass in subset of properties,
560  * which would affect all cpu slots that match it.
561  * Ex for pc machine:
562  *    -smp 4,cores=2,sockets=2 -numa node,nodeid=0 -numa node,nodeid=1 \
563  *    -numa cpu,node-id=0,socket_id=0 \
564  *    -numa cpu,node-id=1,socket_id=1
565  * will assign all child cores of socket 0 to node 0 and
566  * of socket 1 to node 1.
567  *
568  * On attempt of reassigning (already assigned) cpu slot to another NUMA node,
569  * return error.
570  * Empty subset is disallowed and function will return with error in this case.
571  */
572 void machine_set_cpu_numa_node(MachineState *machine,
573                                const CpuInstanceProperties *props, Error **errp)
574 {
575     MachineClass *mc = MACHINE_GET_CLASS(machine);
576     bool match = false;
577     int i;
578 
579     if (!mc->possible_cpu_arch_ids) {
580         error_setg(errp, "mapping of CPUs to NUMA node is not supported");
581         return;
582     }
583 
584     /* disabling node mapping is not supported, forbid it */
585     assert(props->has_node_id);
586 
587     /* force board to initialize possible_cpus if it hasn't been done yet */
588     mc->possible_cpu_arch_ids(machine);
589 
590     for (i = 0; i < machine->possible_cpus->len; i++) {
591         CPUArchId *slot = &machine->possible_cpus->cpus[i];
592 
593         /* reject unsupported by board properties */
594         if (props->has_thread_id && !slot->props.has_thread_id) {
595             error_setg(errp, "thread-id is not supported");
596             return;
597         }
598 
599         if (props->has_core_id && !slot->props.has_core_id) {
600             error_setg(errp, "core-id is not supported");
601             return;
602         }
603 
604         if (props->has_socket_id && !slot->props.has_socket_id) {
605             error_setg(errp, "socket-id is not supported");
606             return;
607         }
608 
609         /* skip slots with explicit mismatch */
610         if (props->has_thread_id && props->thread_id != slot->props.thread_id) {
611                 continue;
612         }
613 
614         if (props->has_core_id && props->core_id != slot->props.core_id) {
615                 continue;
616         }
617 
618         if (props->has_socket_id && props->socket_id != slot->props.socket_id) {
619                 continue;
620         }
621 
622         /* reject assignment if slot is already assigned, for compatibility
623          * of legacy cpu_index mapping with SPAPR core based mapping do not
624          * error out if cpu thread and matched core have the same node-id */
625         if (slot->props.has_node_id &&
626             slot->props.node_id != props->node_id) {
627             error_setg(errp, "CPU is already assigned to node-id: %" PRId64,
628                        slot->props.node_id);
629             return;
630         }
631 
632         /* assign slot to node as it's matched '-numa cpu' key */
633         match = true;
634         slot->props.node_id = props->node_id;
635         slot->props.has_node_id = props->has_node_id;
636     }
637 
638     if (!match) {
639         error_setg(errp, "no match found");
640     }
641 }
642 
643 static void machine_class_init(ObjectClass *oc, void *data)
644 {
645     MachineClass *mc = MACHINE_CLASS(oc);
646 
647     /* Default 128 MB as guest ram size */
648     mc->default_ram_size = 128 * MiB;
649     mc->rom_file_has_mr = true;
650 
651     /* numa node memory size aligned on 8MB by default.
652      * On Linux, each node's border has to be 8MB aligned
653      */
654     mc->numa_mem_align_shift = 23;
655     mc->numa_auto_assign_ram = numa_default_auto_assign_ram;
656 
657     object_class_property_add_str(oc, "accel",
658         machine_get_accel, machine_set_accel, &error_abort);
659     object_class_property_set_description(oc, "accel",
660         "Accelerator list", &error_abort);
661 
662     object_class_property_add(oc, "kernel-irqchip", "on|off|split",
663         NULL, machine_set_kernel_irqchip,
664         NULL, NULL, &error_abort);
665     object_class_property_set_description(oc, "kernel-irqchip",
666         "Configure KVM in-kernel irqchip", &error_abort);
667 
668     object_class_property_add(oc, "kvm-shadow-mem", "int",
669         machine_get_kvm_shadow_mem, machine_set_kvm_shadow_mem,
670         NULL, NULL, &error_abort);
671     object_class_property_set_description(oc, "kvm-shadow-mem",
672         "KVM shadow MMU size", &error_abort);
673 
674     object_class_property_add_str(oc, "kernel",
675         machine_get_kernel, machine_set_kernel, &error_abort);
676     object_class_property_set_description(oc, "kernel",
677         "Linux kernel image file", &error_abort);
678 
679     object_class_property_add_str(oc, "initrd",
680         machine_get_initrd, machine_set_initrd, &error_abort);
681     object_class_property_set_description(oc, "initrd",
682         "Linux initial ramdisk file", &error_abort);
683 
684     object_class_property_add_str(oc, "append",
685         machine_get_append, machine_set_append, &error_abort);
686     object_class_property_set_description(oc, "append",
687         "Linux kernel command line", &error_abort);
688 
689     object_class_property_add_str(oc, "dtb",
690         machine_get_dtb, machine_set_dtb, &error_abort);
691     object_class_property_set_description(oc, "dtb",
692         "Linux kernel device tree file", &error_abort);
693 
694     object_class_property_add_str(oc, "dumpdtb",
695         machine_get_dumpdtb, machine_set_dumpdtb, &error_abort);
696     object_class_property_set_description(oc, "dumpdtb",
697         "Dump current dtb to a file and quit", &error_abort);
698 
699     object_class_property_add(oc, "phandle-start", "int",
700         machine_get_phandle_start, machine_set_phandle_start,
701         NULL, NULL, &error_abort);
702     object_class_property_set_description(oc, "phandle-start",
703             "The first phandle ID we may generate dynamically", &error_abort);
704 
705     object_class_property_add_str(oc, "dt-compatible",
706         machine_get_dt_compatible, machine_set_dt_compatible, &error_abort);
707     object_class_property_set_description(oc, "dt-compatible",
708         "Overrides the \"compatible\" property of the dt root node",
709         &error_abort);
710 
711     object_class_property_add_bool(oc, "dump-guest-core",
712         machine_get_dump_guest_core, machine_set_dump_guest_core, &error_abort);
713     object_class_property_set_description(oc, "dump-guest-core",
714         "Include guest memory in a core dump", &error_abort);
715 
716     object_class_property_add_bool(oc, "mem-merge",
717         machine_get_mem_merge, machine_set_mem_merge, &error_abort);
718     object_class_property_set_description(oc, "mem-merge",
719         "Enable/disable memory merge support", &error_abort);
720 
721     object_class_property_add_bool(oc, "usb",
722         machine_get_usb, machine_set_usb, &error_abort);
723     object_class_property_set_description(oc, "usb",
724         "Set on/off to enable/disable usb", &error_abort);
725 
726     object_class_property_add_bool(oc, "graphics",
727         machine_get_graphics, machine_set_graphics, &error_abort);
728     object_class_property_set_description(oc, "graphics",
729         "Set on/off to enable/disable graphics emulation", &error_abort);
730 
731     object_class_property_add_bool(oc, "igd-passthru",
732         machine_get_igd_gfx_passthru, machine_set_igd_gfx_passthru,
733         &error_abort);
734     object_class_property_set_description(oc, "igd-passthru",
735         "Set on/off to enable/disable igd passthrou", &error_abort);
736 
737     object_class_property_add_str(oc, "firmware",
738         machine_get_firmware, machine_set_firmware,
739         &error_abort);
740     object_class_property_set_description(oc, "firmware",
741         "Firmware image", &error_abort);
742 
743     object_class_property_add_bool(oc, "suppress-vmdesc",
744         machine_get_suppress_vmdesc, machine_set_suppress_vmdesc,
745         &error_abort);
746     object_class_property_set_description(oc, "suppress-vmdesc",
747         "Set on to disable self-describing migration", &error_abort);
748 
749     object_class_property_add_bool(oc, "enforce-config-section",
750         machine_get_enforce_config_section, machine_set_enforce_config_section,
751         &error_abort);
752     object_class_property_set_description(oc, "enforce-config-section",
753         "Set on to enforce configuration section migration", &error_abort);
754 
755     object_class_property_add_str(oc, "memory-encryption",
756         machine_get_memory_encryption, machine_set_memory_encryption,
757         &error_abort);
758     object_class_property_set_description(oc, "memory-encryption",
759         "Set memory encryption object to use", &error_abort);
760 }
761 
762 static void machine_class_base_init(ObjectClass *oc, void *data)
763 {
764     if (!object_class_is_abstract(oc)) {
765         MachineClass *mc = MACHINE_CLASS(oc);
766         const char *cname = object_class_get_name(oc);
767         assert(g_str_has_suffix(cname, TYPE_MACHINE_SUFFIX));
768         mc->name = g_strndup(cname,
769                             strlen(cname) - strlen(TYPE_MACHINE_SUFFIX));
770         mc->compat_props = g_ptr_array_new();
771     }
772 }
773 
774 static void machine_initfn(Object *obj)
775 {
776     MachineState *ms = MACHINE(obj);
777     MachineClass *mc = MACHINE_GET_CLASS(obj);
778 
779     ms->kernel_irqchip_allowed = true;
780     ms->kernel_irqchip_split = mc->default_kernel_irqchip_split;
781     ms->kvm_shadow_mem = -1;
782     ms->dump_guest_core = true;
783     ms->mem_merge = true;
784     ms->enable_graphics = true;
785 
786     /* Register notifier when init is done for sysbus sanity checks */
787     ms->sysbus_notifier.notify = machine_init_notify;
788     qemu_add_machine_init_done_notifier(&ms->sysbus_notifier);
789 }
790 
791 static void machine_finalize(Object *obj)
792 {
793     MachineState *ms = MACHINE(obj);
794 
795     g_free(ms->accel);
796     g_free(ms->kernel_filename);
797     g_free(ms->initrd_filename);
798     g_free(ms->kernel_cmdline);
799     g_free(ms->dtb);
800     g_free(ms->dumpdtb);
801     g_free(ms->dt_compatible);
802     g_free(ms->firmware);
803     g_free(ms->device_memory);
804 }
805 
806 bool machine_usb(MachineState *machine)
807 {
808     return machine->usb;
809 }
810 
811 bool machine_kernel_irqchip_allowed(MachineState *machine)
812 {
813     return machine->kernel_irqchip_allowed;
814 }
815 
816 bool machine_kernel_irqchip_required(MachineState *machine)
817 {
818     return machine->kernel_irqchip_required;
819 }
820 
821 bool machine_kernel_irqchip_split(MachineState *machine)
822 {
823     return machine->kernel_irqchip_split;
824 }
825 
826 int machine_kvm_shadow_mem(MachineState *machine)
827 {
828     return machine->kvm_shadow_mem;
829 }
830 
831 int machine_phandle_start(MachineState *machine)
832 {
833     return machine->phandle_start;
834 }
835 
836 bool machine_dump_guest_core(MachineState *machine)
837 {
838     return machine->dump_guest_core;
839 }
840 
841 bool machine_mem_merge(MachineState *machine)
842 {
843     return machine->mem_merge;
844 }
845 
846 static char *cpu_slot_to_string(const CPUArchId *cpu)
847 {
848     GString *s = g_string_new(NULL);
849     if (cpu->props.has_socket_id) {
850         g_string_append_printf(s, "socket-id: %"PRId64, cpu->props.socket_id);
851     }
852     if (cpu->props.has_core_id) {
853         if (s->len) {
854             g_string_append_printf(s, ", ");
855         }
856         g_string_append_printf(s, "core-id: %"PRId64, cpu->props.core_id);
857     }
858     if (cpu->props.has_thread_id) {
859         if (s->len) {
860             g_string_append_printf(s, ", ");
861         }
862         g_string_append_printf(s, "thread-id: %"PRId64, cpu->props.thread_id);
863     }
864     return g_string_free(s, false);
865 }
866 
867 static void machine_numa_finish_cpu_init(MachineState *machine)
868 {
869     int i;
870     bool default_mapping;
871     GString *s = g_string_new(NULL);
872     MachineClass *mc = MACHINE_GET_CLASS(machine);
873     const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(machine);
874 
875     assert(nb_numa_nodes);
876     for (i = 0; i < possible_cpus->len; i++) {
877         if (possible_cpus->cpus[i].props.has_node_id) {
878             break;
879         }
880     }
881     default_mapping = (i == possible_cpus->len);
882 
883     for (i = 0; i < possible_cpus->len; i++) {
884         const CPUArchId *cpu_slot = &possible_cpus->cpus[i];
885 
886         if (!cpu_slot->props.has_node_id) {
887             /* fetch default mapping from board and enable it */
888             CpuInstanceProperties props = cpu_slot->props;
889 
890             props.node_id = mc->get_default_cpu_node_id(machine, i);
891             if (!default_mapping) {
892                 /* record slots with not set mapping,
893                  * TODO: make it hard error in future */
894                 char *cpu_str = cpu_slot_to_string(cpu_slot);
895                 g_string_append_printf(s, "%sCPU %d [%s]",
896                                        s->len ? ", " : "", i, cpu_str);
897                 g_free(cpu_str);
898 
899                 /* non mapped cpus used to fallback to node 0 */
900                 props.node_id = 0;
901             }
902 
903             props.has_node_id = true;
904             machine_set_cpu_numa_node(machine, &props, &error_fatal);
905         }
906     }
907     if (s->len && !qtest_enabled()) {
908         warn_report("CPU(s) not present in any NUMA nodes: %s",
909                     s->str);
910         warn_report("All CPU(s) up to maxcpus should be described "
911                     "in NUMA config, ability to start up with partial NUMA "
912                     "mappings is obsoleted and will be removed in future");
913     }
914     g_string_free(s, true);
915 }
916 
917 void machine_run_board_init(MachineState *machine)
918 {
919     MachineClass *machine_class = MACHINE_GET_CLASS(machine);
920 
921     numa_complete_configuration(machine);
922     if (nb_numa_nodes) {
923         machine_numa_finish_cpu_init(machine);
924     }
925 
926     /* If the machine supports the valid_cpu_types check and the user
927      * specified a CPU with -cpu check here that the user CPU is supported.
928      */
929     if (machine_class->valid_cpu_types && machine->cpu_type) {
930         ObjectClass *class = object_class_by_name(machine->cpu_type);
931         int i;
932 
933         for (i = 0; machine_class->valid_cpu_types[i]; i++) {
934             if (object_class_dynamic_cast(class,
935                                           machine_class->valid_cpu_types[i])) {
936                 /* The user specificed CPU is in the valid field, we are
937                  * good to go.
938                  */
939                 break;
940             }
941         }
942 
943         if (!machine_class->valid_cpu_types[i]) {
944             /* The user specified CPU is not valid */
945             error_report("Invalid CPU type: %s", machine->cpu_type);
946             error_printf("The valid types are: %s",
947                          machine_class->valid_cpu_types[0]);
948             for (i = 1; machine_class->valid_cpu_types[i]; i++) {
949                 error_printf(", %s", machine_class->valid_cpu_types[i]);
950             }
951             error_printf("\n");
952 
953             exit(1);
954         }
955     }
956 
957     machine_class->init(machine);
958 }
959 
960 static const TypeInfo machine_info = {
961     .name = TYPE_MACHINE,
962     .parent = TYPE_OBJECT,
963     .abstract = true,
964     .class_size = sizeof(MachineClass),
965     .class_init    = machine_class_init,
966     .class_base_init = machine_class_base_init,
967     .instance_size = sizeof(MachineState),
968     .instance_init = machine_initfn,
969     .instance_finalize = machine_finalize,
970 };
971 
972 static void machine_register_types(void)
973 {
974     type_register_static(&machine_info);
975 }
976 
977 type_init(machine_register_types)
978