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1/*
2 * QEMU Machine
3 *
4 * Copyright (C) 2014 Red Hat Inc
5 *
6 * Authors:
7 * Marcel Apfelbaum <[email protected]>
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 "hw/boards.h"
6b1b1440 14#include "qapi/visitor.h"
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15#include "hw/sysbus.h"
16#include "sysemu/sysemu.h"
17#include "qemu/error-report.h"
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18
19static char *machine_get_accel(Object *obj, Error **errp)
20{
21 MachineState *ms = MACHINE(obj);
22
23 return g_strdup(ms->accel);
24}
25
26static void machine_set_accel(Object *obj, const char *value, Error **errp)
27{
28 MachineState *ms = MACHINE(obj);
29
556068ee 30 g_free(ms->accel);
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31 ms->accel = g_strdup(value);
32}
33
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34static void machine_set_kernel_irqchip(Object *obj, bool value, Error **errp)
35{
36 MachineState *ms = MACHINE(obj);
37
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38 ms->kernel_irqchip_allowed = value;
39 ms->kernel_irqchip_required = value;
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40}
41
42static void machine_get_kvm_shadow_mem(Object *obj, Visitor *v,
43 void *opaque, const char *name,
44 Error **errp)
45{
46 MachineState *ms = MACHINE(obj);
47 int64_t value = ms->kvm_shadow_mem;
48
49 visit_type_int(v, &value, name, errp);
50}
51
52static void machine_set_kvm_shadow_mem(Object *obj, Visitor *v,
53 void *opaque, const char *name,
54 Error **errp)
55{
56 MachineState *ms = MACHINE(obj);
57 Error *error = NULL;
58 int64_t value;
59
60 visit_type_int(v, &value, name, &error);
61 if (error) {
62 error_propagate(errp, error);
63 return;
64 }
65
66 ms->kvm_shadow_mem = value;
67}
68
69static char *machine_get_kernel(Object *obj, Error **errp)
70{
71 MachineState *ms = MACHINE(obj);
72
73 return g_strdup(ms->kernel_filename);
74}
75
76static void machine_set_kernel(Object *obj, const char *value, Error **errp)
77{
78 MachineState *ms = MACHINE(obj);
79
556068ee 80 g_free(ms->kernel_filename);
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81 ms->kernel_filename = g_strdup(value);
82}
83
84static char *machine_get_initrd(Object *obj, Error **errp)
85{
86 MachineState *ms = MACHINE(obj);
87
88 return g_strdup(ms->initrd_filename);
89}
90
91static void machine_set_initrd(Object *obj, const char *value, Error **errp)
92{
93 MachineState *ms = MACHINE(obj);
94
556068ee 95 g_free(ms->initrd_filename);
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96 ms->initrd_filename = g_strdup(value);
97}
98
99static char *machine_get_append(Object *obj, Error **errp)
100{
101 MachineState *ms = MACHINE(obj);
102
103 return g_strdup(ms->kernel_cmdline);
104}
105
106static void machine_set_append(Object *obj, const char *value, Error **errp)
107{
108 MachineState *ms = MACHINE(obj);
109
556068ee 110 g_free(ms->kernel_cmdline);
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111 ms->kernel_cmdline = g_strdup(value);
112}
113
114static char *machine_get_dtb(Object *obj, Error **errp)
115{
116 MachineState *ms = MACHINE(obj);
117
118 return g_strdup(ms->dtb);
119}
120
121static void machine_set_dtb(Object *obj, const char *value, Error **errp)
122{
123 MachineState *ms = MACHINE(obj);
124
556068ee 125 g_free(ms->dtb);
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126 ms->dtb = g_strdup(value);
127}
128
129static char *machine_get_dumpdtb(Object *obj, Error **errp)
130{
131 MachineState *ms = MACHINE(obj);
132
133 return g_strdup(ms->dumpdtb);
134}
135
136static void machine_set_dumpdtb(Object *obj, const char *value, Error **errp)
137{
138 MachineState *ms = MACHINE(obj);
139
556068ee 140 g_free(ms->dumpdtb);
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141 ms->dumpdtb = g_strdup(value);
142}
143
144static void machine_get_phandle_start(Object *obj, Visitor *v,
145 void *opaque, const char *name,
146 Error **errp)
147{
148 MachineState *ms = MACHINE(obj);
149 int64_t value = ms->phandle_start;
150
151 visit_type_int(v, &value, name, errp);
152}
153
154static void machine_set_phandle_start(Object *obj, Visitor *v,
155 void *opaque, const char *name,
156 Error **errp)
157{
158 MachineState *ms = MACHINE(obj);
159 Error *error = NULL;
160 int64_t value;
161
162 visit_type_int(v, &value, name, &error);
163 if (error) {
164 error_propagate(errp, error);
165 return;
166 }
167
168 ms->phandle_start = value;
169}
170
171static char *machine_get_dt_compatible(Object *obj, Error **errp)
172{
173 MachineState *ms = MACHINE(obj);
174
175 return g_strdup(ms->dt_compatible);
176}
177
178static void machine_set_dt_compatible(Object *obj, const char *value, Error **errp)
179{
180 MachineState *ms = MACHINE(obj);
181
556068ee 182 g_free(ms->dt_compatible);
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183 ms->dt_compatible = g_strdup(value);
184}
185
186static bool machine_get_dump_guest_core(Object *obj, Error **errp)
187{
188 MachineState *ms = MACHINE(obj);
189
190 return ms->dump_guest_core;
191}
192
193static void machine_set_dump_guest_core(Object *obj, bool value, Error **errp)
194{
195 MachineState *ms = MACHINE(obj);
196
197 ms->dump_guest_core = value;
198}
199
200static bool machine_get_mem_merge(Object *obj, Error **errp)
201{
202 MachineState *ms = MACHINE(obj);
203
204 return ms->mem_merge;
205}
206
207static void machine_set_mem_merge(Object *obj, bool value, Error **errp)
208{
209 MachineState *ms = MACHINE(obj);
210
211 ms->mem_merge = value;
212}
213
214static bool machine_get_usb(Object *obj, Error **errp)
215{
216 MachineState *ms = MACHINE(obj);
217
218 return ms->usb;
219}
220
221static void machine_set_usb(Object *obj, bool value, Error **errp)
222{
223 MachineState *ms = MACHINE(obj);
224
225 ms->usb = value;
226}
227
228static char *machine_get_firmware(Object *obj, Error **errp)
229{
230 MachineState *ms = MACHINE(obj);
231
232 return g_strdup(ms->firmware);
233}
234
235static void machine_set_firmware(Object *obj, const char *value, Error **errp)
236{
237 MachineState *ms = MACHINE(obj);
238
556068ee 239 g_free(ms->firmware);
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240 ms->firmware = g_strdup(value);
241}
242
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243static bool machine_get_iommu(Object *obj, Error **errp)
244{
245 MachineState *ms = MACHINE(obj);
246
247 return ms->iommu;
248}
249
250static void machine_set_iommu(Object *obj, bool value, Error **errp)
251{
252 MachineState *ms = MACHINE(obj);
253
254 ms->iommu = value;
255}
256
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257static void machine_set_suppress_vmdesc(Object *obj, bool value, Error **errp)
258{
259 MachineState *ms = MACHINE(obj);
260
261 ms->suppress_vmdesc = value;
262}
263
264static bool machine_get_suppress_vmdesc(Object *obj, Error **errp)
265{
266 MachineState *ms = MACHINE(obj);
267
268 return ms->suppress_vmdesc;
269}
270
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271static int error_on_sysbus_device(SysBusDevice *sbdev, void *opaque)
272{
273 error_report("Option '-device %s' cannot be handled by this machine",
274 object_class_get_name(object_get_class(OBJECT(sbdev))));
275 exit(1);
276}
277
278static void machine_init_notify(Notifier *notifier, void *data)
279{
280 Object *machine = qdev_get_machine();
281 ObjectClass *oc = object_get_class(machine);
282 MachineClass *mc = MACHINE_CLASS(oc);
283
284 if (mc->has_dynamic_sysbus) {
285 /* Our machine can handle dynamic sysbus devices, we're all good */
286 return;
287 }
288
289 /*
290 * Loop through all dynamically created devices and check whether there
291 * are sysbus devices among them. If there are, error out.
292 */
293 foreach_dynamic_sysbus_device(error_on_sysbus_device, NULL);
294}
295
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296static void machine_initfn(Object *obj)
297{
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298 MachineState *ms = MACHINE(obj);
299
d8870d02 300 ms->kernel_irqchip_allowed = true;
4689b77b 301 ms->kvm_shadow_mem = -1;
47c8ca53 302 ms->dump_guest_core = true;
75cc7f01 303 ms->mem_merge = true;
d8870d02 304
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305 object_property_add_str(obj, "accel",
306 machine_get_accel, machine_set_accel, NULL);
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307 object_property_set_description(obj, "accel",
308 "Accelerator list",
309 NULL);
b0ddb8bf 310 object_property_add_bool(obj, "kernel-irqchip",
d8870d02 311 NULL,
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312 machine_set_kernel_irqchip,
313 NULL);
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314 object_property_set_description(obj, "kernel-irqchip",
315 "Use KVM in-kernel irqchip",
316 NULL);
b0ddb8bf 317 object_property_add(obj, "kvm-shadow-mem", "int",
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318 machine_get_kvm_shadow_mem,
319 machine_set_kvm_shadow_mem,
320 NULL, NULL, NULL);
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321 object_property_set_description(obj, "kvm-shadow-mem",
322 "KVM shadow MMU size",
323 NULL);
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324 object_property_add_str(obj, "kernel",
325 machine_get_kernel, machine_set_kernel, NULL);
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326 object_property_set_description(obj, "kernel",
327 "Linux kernel image file",
328 NULL);
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329 object_property_add_str(obj, "initrd",
330 machine_get_initrd, machine_set_initrd, NULL);
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331 object_property_set_description(obj, "initrd",
332 "Linux initial ramdisk file",
333 NULL);
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334 object_property_add_str(obj, "append",
335 machine_get_append, machine_set_append, NULL);
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336 object_property_set_description(obj, "append",
337 "Linux kernel command line",
338 NULL);
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339 object_property_add_str(obj, "dtb",
340 machine_get_dtb, machine_set_dtb, NULL);
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341 object_property_set_description(obj, "dtb",
342 "Linux kernel device tree file",
343 NULL);
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344 object_property_add_str(obj, "dumpdtb",
345 machine_get_dumpdtb, machine_set_dumpdtb, NULL);
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346 object_property_set_description(obj, "dumpdtb",
347 "Dump current dtb to a file and quit",
348 NULL);
b0ddb8bf 349 object_property_add(obj, "phandle-start", "int",
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350 machine_get_phandle_start,
351 machine_set_phandle_start,
352 NULL, NULL, NULL);
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353 object_property_set_description(obj, "phandle-start",
354 "The first phandle ID we may generate dynamically",
355 NULL);
b0ddb8bf 356 object_property_add_str(obj, "dt-compatible",
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357 machine_get_dt_compatible,
358 machine_set_dt_compatible,
359 NULL);
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360 object_property_set_description(obj, "dt-compatible",
361 "Overrides the \"compatible\" property of the dt root node",
362 NULL);
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363 object_property_add_bool(obj, "dump-guest-core",
364 machine_get_dump_guest_core,
365 machine_set_dump_guest_core,
366 NULL);
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367 object_property_set_description(obj, "dump-guest-core",
368 "Include guest memory in a core dump",
369 NULL);
6b1b1440 370 object_property_add_bool(obj, "mem-merge",
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371 machine_get_mem_merge,
372 machine_set_mem_merge, NULL);
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373 object_property_set_description(obj, "mem-merge",
374 "Enable/disable memory merge support",
375 NULL);
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376 object_property_add_bool(obj, "usb",
377 machine_get_usb,
378 machine_set_usb, NULL);
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379 object_property_set_description(obj, "usb",
380 "Set on/off to enable/disable usb",
381 NULL);
6b1b1440 382 object_property_add_str(obj, "firmware",
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383 machine_get_firmware,
384 machine_set_firmware, NULL);
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385 object_property_set_description(obj, "firmware",
386 "Firmware image",
387 NULL);
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388 object_property_add_bool(obj, "iommu",
389 machine_get_iommu,
390 machine_set_iommu, NULL);
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391 object_property_set_description(obj, "iommu",
392 "Set on/off to enable/disable Intel IOMMU (VT-d)",
393 NULL);
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394 object_property_add_bool(obj, "suppress-vmdesc",
395 machine_get_suppress_vmdesc,
396 machine_set_suppress_vmdesc, NULL);
397 object_property_set_description(obj, "suppress-vmdesc",
398 "Set on to disable self-describing migration",
399 NULL);
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400
401 /* Register notifier when init is done for sysbus sanity checks */
402 ms->sysbus_notifier.notify = machine_init_notify;
403 qemu_add_machine_init_done_notifier(&ms->sysbus_notifier);
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404}
405
406static void machine_finalize(Object *obj)
407{
408 MachineState *ms = MACHINE(obj);
409
410 g_free(ms->accel);
411 g_free(ms->kernel_filename);
412 g_free(ms->initrd_filename);
413 g_free(ms->kernel_cmdline);
414 g_free(ms->dtb);
415 g_free(ms->dumpdtb);
416 g_free(ms->dt_compatible);
417 g_free(ms->firmware);
418}
36d20cb2 419
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420bool machine_usb(MachineState *machine)
421{
422 return machine->usb;
423}
424
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425bool machine_iommu(MachineState *machine)
426{
427 return machine->iommu;
428}
429
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430bool machine_kernel_irqchip_allowed(MachineState *machine)
431{
432 return machine->kernel_irqchip_allowed;
433}
434
435bool machine_kernel_irqchip_required(MachineState *machine)
436{
437 return machine->kernel_irqchip_required;
438}
439
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440int machine_kvm_shadow_mem(MachineState *machine)
441{
442 return machine->kvm_shadow_mem;
443}
444
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445int machine_phandle_start(MachineState *machine)
446{
447 return machine->phandle_start;
448}
449
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450bool machine_dump_guest_core(MachineState *machine)
451{
452 return machine->dump_guest_core;
453}
454
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455bool machine_mem_merge(MachineState *machine)
456{
457 return machine->mem_merge;
458}
459
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460static const TypeInfo machine_info = {
461 .name = TYPE_MACHINE,
462 .parent = TYPE_OBJECT,
463 .abstract = true,
464 .class_size = sizeof(MachineClass),
465 .instance_size = sizeof(MachineState),
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466 .instance_init = machine_initfn,
467 .instance_finalize = machine_finalize,
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468};
469
470static void machine_register_types(void)
471{
472 type_register_static(&machine_info);
473}
474
475type_init(machine_register_types)
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