meson: convert qapi-specific to meson
[qemu.git] / hw / acpi / cpu.c
1 #include "qemu/osdep.h"
2 #include "hw/boards.h"
3 #include "migration/vmstate.h"
4 #include "hw/acpi/cpu.h"
5 #include "qapi/error.h"
6 #include "qapi/qapi-events-misc.h"
7 #include "trace.h"
8 #include "sysemu/numa.h"
9
10 #define ACPI_CPU_HOTPLUG_REG_LEN 12
11 #define ACPI_CPU_SELECTOR_OFFSET_WR 0
12 #define ACPI_CPU_FLAGS_OFFSET_RW 4
13 #define ACPI_CPU_CMD_OFFSET_WR 5
14 #define ACPI_CPU_CMD_DATA_OFFSET_RW 8
15 #define ACPI_CPU_CMD_DATA2_OFFSET_R 0
16
17 enum {
18 CPHP_GET_NEXT_CPU_WITH_EVENT_CMD = 0,
19 CPHP_OST_EVENT_CMD = 1,
20 CPHP_OST_STATUS_CMD = 2,
21 CPHP_GET_CPU_ID_CMD = 3,
22 CPHP_CMD_MAX
23 };
24
25 static ACPIOSTInfo *acpi_cpu_device_status(int idx, AcpiCpuStatus *cdev)
26 {
27 ACPIOSTInfo *info = g_new0(ACPIOSTInfo, 1);
28
29 info->slot_type = ACPI_SLOT_TYPE_CPU;
30 info->slot = g_strdup_printf("%d", idx);
31 info->source = cdev->ost_event;
32 info->status = cdev->ost_status;
33 if (cdev->cpu) {
34 DeviceState *dev = DEVICE(cdev->cpu);
35 if (dev->id) {
36 info->device = g_strdup(dev->id);
37 info->has_device = true;
38 }
39 }
40 return info;
41 }
42
43 void acpi_cpu_ospm_status(CPUHotplugState *cpu_st, ACPIOSTInfoList ***list)
44 {
45 int i;
46
47 for (i = 0; i < cpu_st->dev_count; i++) {
48 ACPIOSTInfoList *elem = g_new0(ACPIOSTInfoList, 1);
49 elem->value = acpi_cpu_device_status(i, &cpu_st->devs[i]);
50 elem->next = NULL;
51 **list = elem;
52 *list = &elem->next;
53 }
54 }
55
56 static uint64_t cpu_hotplug_rd(void *opaque, hwaddr addr, unsigned size)
57 {
58 uint64_t val = 0;
59 CPUHotplugState *cpu_st = opaque;
60 AcpiCpuStatus *cdev;
61
62 if (cpu_st->selector >= cpu_st->dev_count) {
63 return val;
64 }
65
66 cdev = &cpu_st->devs[cpu_st->selector];
67 switch (addr) {
68 case ACPI_CPU_FLAGS_OFFSET_RW: /* pack and return is_* fields */
69 val |= cdev->cpu ? 1 : 0;
70 val |= cdev->is_inserting ? 2 : 0;
71 val |= cdev->is_removing ? 4 : 0;
72 trace_cpuhp_acpi_read_flags(cpu_st->selector, val);
73 break;
74 case ACPI_CPU_CMD_DATA_OFFSET_RW:
75 switch (cpu_st->command) {
76 case CPHP_GET_NEXT_CPU_WITH_EVENT_CMD:
77 val = cpu_st->selector;
78 break;
79 case CPHP_GET_CPU_ID_CMD:
80 val = cdev->arch_id & 0xFFFFFFFF;
81 break;
82 default:
83 break;
84 }
85 trace_cpuhp_acpi_read_cmd_data(cpu_st->selector, val);
86 break;
87 case ACPI_CPU_CMD_DATA2_OFFSET_R:
88 switch (cpu_st->command) {
89 case CPHP_GET_NEXT_CPU_WITH_EVENT_CMD:
90 val = 0;
91 break;
92 case CPHP_GET_CPU_ID_CMD:
93 val = cdev->arch_id >> 32;
94 break;
95 default:
96 break;
97 }
98 trace_cpuhp_acpi_read_cmd_data2(cpu_st->selector, val);
99 break;
100 default:
101 break;
102 }
103 return val;
104 }
105
106 static void cpu_hotplug_wr(void *opaque, hwaddr addr, uint64_t data,
107 unsigned int size)
108 {
109 CPUHotplugState *cpu_st = opaque;
110 AcpiCpuStatus *cdev;
111 ACPIOSTInfo *info;
112
113 assert(cpu_st->dev_count);
114
115 if (addr) {
116 if (cpu_st->selector >= cpu_st->dev_count) {
117 trace_cpuhp_acpi_invalid_idx_selected(cpu_st->selector);
118 return;
119 }
120 }
121
122 switch (addr) {
123 case ACPI_CPU_SELECTOR_OFFSET_WR: /* current CPU selector */
124 cpu_st->selector = data;
125 trace_cpuhp_acpi_write_idx(cpu_st->selector);
126 break;
127 case ACPI_CPU_FLAGS_OFFSET_RW: /* set is_* fields */
128 cdev = &cpu_st->devs[cpu_st->selector];
129 if (data & 2) { /* clear insert event */
130 cdev->is_inserting = false;
131 trace_cpuhp_acpi_clear_inserting_evt(cpu_st->selector);
132 } else if (data & 4) { /* clear remove event */
133 cdev->is_removing = false;
134 trace_cpuhp_acpi_clear_remove_evt(cpu_st->selector);
135 } else if (data & 8) {
136 DeviceState *dev = NULL;
137 HotplugHandler *hotplug_ctrl = NULL;
138
139 if (!cdev->cpu || cdev->cpu == first_cpu) {
140 trace_cpuhp_acpi_ejecting_invalid_cpu(cpu_st->selector);
141 break;
142 }
143
144 trace_cpuhp_acpi_ejecting_cpu(cpu_st->selector);
145 dev = DEVICE(cdev->cpu);
146 hotplug_ctrl = qdev_get_hotplug_handler(dev);
147 hotplug_handler_unplug(hotplug_ctrl, dev, NULL);
148 object_unparent(OBJECT(dev));
149 }
150 break;
151 case ACPI_CPU_CMD_OFFSET_WR:
152 trace_cpuhp_acpi_write_cmd(cpu_st->selector, data);
153 if (data < CPHP_CMD_MAX) {
154 cpu_st->command = data;
155 if (cpu_st->command == CPHP_GET_NEXT_CPU_WITH_EVENT_CMD) {
156 uint32_t iter = cpu_st->selector;
157
158 do {
159 cdev = &cpu_st->devs[iter];
160 if (cdev->is_inserting || cdev->is_removing) {
161 cpu_st->selector = iter;
162 trace_cpuhp_acpi_cpu_has_events(cpu_st->selector,
163 cdev->is_inserting, cdev->is_removing);
164 break;
165 }
166 iter = iter + 1 < cpu_st->dev_count ? iter + 1 : 0;
167 } while (iter != cpu_st->selector);
168 }
169 }
170 break;
171 case ACPI_CPU_CMD_DATA_OFFSET_RW:
172 switch (cpu_st->command) {
173 case CPHP_OST_EVENT_CMD: {
174 cdev = &cpu_st->devs[cpu_st->selector];
175 cdev->ost_event = data;
176 trace_cpuhp_acpi_write_ost_ev(cpu_st->selector, cdev->ost_event);
177 break;
178 }
179 case CPHP_OST_STATUS_CMD: {
180 cdev = &cpu_st->devs[cpu_st->selector];
181 cdev->ost_status = data;
182 info = acpi_cpu_device_status(cpu_st->selector, cdev);
183 qapi_event_send_acpi_device_ost(info);
184 qapi_free_ACPIOSTInfo(info);
185 trace_cpuhp_acpi_write_ost_status(cpu_st->selector,
186 cdev->ost_status);
187 break;
188 }
189 default:
190 break;
191 }
192 break;
193 default:
194 break;
195 }
196 }
197
198 static const MemoryRegionOps cpu_hotplug_ops = {
199 .read = cpu_hotplug_rd,
200 .write = cpu_hotplug_wr,
201 .endianness = DEVICE_LITTLE_ENDIAN,
202 .valid = {
203 .min_access_size = 1,
204 .max_access_size = 4,
205 },
206 };
207
208 void cpu_hotplug_hw_init(MemoryRegion *as, Object *owner,
209 CPUHotplugState *state, hwaddr base_addr)
210 {
211 MachineState *machine = MACHINE(qdev_get_machine());
212 MachineClass *mc = MACHINE_GET_CLASS(machine);
213 const CPUArchIdList *id_list;
214 int i;
215
216 assert(mc->possible_cpu_arch_ids);
217 id_list = mc->possible_cpu_arch_ids(machine);
218 state->dev_count = id_list->len;
219 state->devs = g_new0(typeof(*state->devs), state->dev_count);
220 for (i = 0; i < id_list->len; i++) {
221 state->devs[i].cpu = CPU(id_list->cpus[i].cpu);
222 state->devs[i].arch_id = id_list->cpus[i].arch_id;
223 }
224 memory_region_init_io(&state->ctrl_reg, owner, &cpu_hotplug_ops, state,
225 "acpi-cpu-hotplug", ACPI_CPU_HOTPLUG_REG_LEN);
226 memory_region_add_subregion(as, base_addr, &state->ctrl_reg);
227 }
228
229 static AcpiCpuStatus *get_cpu_status(CPUHotplugState *cpu_st, DeviceState *dev)
230 {
231 CPUClass *k = CPU_GET_CLASS(dev);
232 uint64_t cpu_arch_id = k->get_arch_id(CPU(dev));
233 int i;
234
235 for (i = 0; i < cpu_st->dev_count; i++) {
236 if (cpu_arch_id == cpu_st->devs[i].arch_id) {
237 return &cpu_st->devs[i];
238 }
239 }
240 return NULL;
241 }
242
243 void acpi_cpu_plug_cb(HotplugHandler *hotplug_dev,
244 CPUHotplugState *cpu_st, DeviceState *dev, Error **errp)
245 {
246 AcpiCpuStatus *cdev;
247
248 cdev = get_cpu_status(cpu_st, dev);
249 if (!cdev) {
250 return;
251 }
252
253 cdev->cpu = CPU(dev);
254 if (dev->hotplugged) {
255 cdev->is_inserting = true;
256 acpi_send_event(DEVICE(hotplug_dev), ACPI_CPU_HOTPLUG_STATUS);
257 }
258 }
259
260 void acpi_cpu_unplug_request_cb(HotplugHandler *hotplug_dev,
261 CPUHotplugState *cpu_st,
262 DeviceState *dev, Error **errp)
263 {
264 AcpiCpuStatus *cdev;
265
266 cdev = get_cpu_status(cpu_st, dev);
267 if (!cdev) {
268 return;
269 }
270
271 cdev->is_removing = true;
272 acpi_send_event(DEVICE(hotplug_dev), ACPI_CPU_HOTPLUG_STATUS);
273 }
274
275 void acpi_cpu_unplug_cb(CPUHotplugState *cpu_st,
276 DeviceState *dev, Error **errp)
277 {
278 AcpiCpuStatus *cdev;
279
280 cdev = get_cpu_status(cpu_st, dev);
281 if (!cdev) {
282 return;
283 }
284
285 cdev->cpu = NULL;
286 }
287
288 static const VMStateDescription vmstate_cpuhp_sts = {
289 .name = "CPU hotplug device state",
290 .version_id = 1,
291 .minimum_version_id = 1,
292 .minimum_version_id_old = 1,
293 .fields = (VMStateField[]) {
294 VMSTATE_BOOL(is_inserting, AcpiCpuStatus),
295 VMSTATE_BOOL(is_removing, AcpiCpuStatus),
296 VMSTATE_UINT32(ost_event, AcpiCpuStatus),
297 VMSTATE_UINT32(ost_status, AcpiCpuStatus),
298 VMSTATE_END_OF_LIST()
299 }
300 };
301
302 const VMStateDescription vmstate_cpu_hotplug = {
303 .name = "CPU hotplug state",
304 .version_id = 1,
305 .minimum_version_id = 1,
306 .minimum_version_id_old = 1,
307 .fields = (VMStateField[]) {
308 VMSTATE_UINT32(selector, CPUHotplugState),
309 VMSTATE_UINT8(command, CPUHotplugState),
310 VMSTATE_STRUCT_VARRAY_POINTER_UINT32(devs, CPUHotplugState, dev_count,
311 vmstate_cpuhp_sts, AcpiCpuStatus),
312 VMSTATE_END_OF_LIST()
313 }
314 };
315
316 #define CPU_NAME_FMT "C%.03X"
317 #define CPUHP_RES_DEVICE "PRES"
318 #define CPU_LOCK "CPLK"
319 #define CPU_STS_METHOD "CSTA"
320 #define CPU_SCAN_METHOD "CSCN"
321 #define CPU_NOTIFY_METHOD "CTFY"
322 #define CPU_EJECT_METHOD "CEJ0"
323 #define CPU_OST_METHOD "COST"
324
325 #define CPU_ENABLED "CPEN"
326 #define CPU_SELECTOR "CSEL"
327 #define CPU_COMMAND "CCMD"
328 #define CPU_DATA "CDAT"
329 #define CPU_INSERT_EVENT "CINS"
330 #define CPU_REMOVE_EVENT "CRMV"
331 #define CPU_EJECT_EVENT "CEJ0"
332
333 void build_cpus_aml(Aml *table, MachineState *machine, CPUHotplugFeatures opts,
334 hwaddr io_base,
335 const char *res_root,
336 const char *event_handler_method)
337 {
338 Aml *ifctx;
339 Aml *field;
340 Aml *method;
341 Aml *cpu_ctrl_dev;
342 Aml *cpus_dev;
343 Aml *zero = aml_int(0);
344 Aml *one = aml_int(1);
345 Aml *sb_scope = aml_scope("_SB");
346 MachineClass *mc = MACHINE_GET_CLASS(machine);
347 const CPUArchIdList *arch_ids = mc->possible_cpu_arch_ids(machine);
348 char *cphp_res_path = g_strdup_printf("%s." CPUHP_RES_DEVICE, res_root);
349 Object *obj = object_resolve_path_type("", TYPE_ACPI_DEVICE_IF, NULL);
350 AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_GET_CLASS(obj);
351 AcpiDeviceIf *adev = ACPI_DEVICE_IF(obj);
352
353 cpu_ctrl_dev = aml_device("%s", cphp_res_path);
354 {
355 Aml *crs;
356
357 aml_append(cpu_ctrl_dev,
358 aml_name_decl("_HID", aml_eisaid("PNP0A06")));
359 aml_append(cpu_ctrl_dev,
360 aml_name_decl("_UID", aml_string("CPU Hotplug resources")));
361 aml_append(cpu_ctrl_dev, aml_mutex(CPU_LOCK, 0));
362
363 crs = aml_resource_template();
364 aml_append(crs, aml_io(AML_DECODE16, io_base, io_base, 1,
365 ACPI_CPU_HOTPLUG_REG_LEN));
366 aml_append(cpu_ctrl_dev, aml_name_decl("_CRS", crs));
367
368 /* declare CPU hotplug MMIO region with related access fields */
369 aml_append(cpu_ctrl_dev,
370 aml_operation_region("PRST", AML_SYSTEM_IO, aml_int(io_base),
371 ACPI_CPU_HOTPLUG_REG_LEN));
372
373 field = aml_field("PRST", AML_BYTE_ACC, AML_NOLOCK,
374 AML_WRITE_AS_ZEROS);
375 aml_append(field, aml_reserved_field(ACPI_CPU_FLAGS_OFFSET_RW * 8));
376 /* 1 if enabled, read only */
377 aml_append(field, aml_named_field(CPU_ENABLED, 1));
378 /* (read) 1 if has a insert event. (write) 1 to clear event */
379 aml_append(field, aml_named_field(CPU_INSERT_EVENT, 1));
380 /* (read) 1 if has a remove event. (write) 1 to clear event */
381 aml_append(field, aml_named_field(CPU_REMOVE_EVENT, 1));
382 /* initiates device eject, write only */
383 aml_append(field, aml_named_field(CPU_EJECT_EVENT, 1));
384 aml_append(field, aml_reserved_field(4));
385 aml_append(field, aml_named_field(CPU_COMMAND, 8));
386 aml_append(cpu_ctrl_dev, field);
387
388 field = aml_field("PRST", AML_DWORD_ACC, AML_NOLOCK, AML_PRESERVE);
389 /* CPU selector, write only */
390 aml_append(field, aml_named_field(CPU_SELECTOR, 32));
391 /* flags + cmd + 2byte align */
392 aml_append(field, aml_reserved_field(4 * 8));
393 aml_append(field, aml_named_field(CPU_DATA, 32));
394 aml_append(cpu_ctrl_dev, field);
395
396 if (opts.has_legacy_cphp) {
397 method = aml_method("_INI", 0, AML_SERIALIZED);
398 /* switch off legacy CPU hotplug HW and use new one,
399 * on reboot system is in new mode and writing 0
400 * in CPU_SELECTOR selects BSP, which is NOP at
401 * the time _INI is called */
402 aml_append(method, aml_store(zero, aml_name(CPU_SELECTOR)));
403 aml_append(cpu_ctrl_dev, method);
404 }
405 }
406 aml_append(sb_scope, cpu_ctrl_dev);
407
408 cpus_dev = aml_device("\\_SB.CPUS");
409 {
410 int i;
411 Aml *ctrl_lock = aml_name("%s.%s", cphp_res_path, CPU_LOCK);
412 Aml *cpu_selector = aml_name("%s.%s", cphp_res_path, CPU_SELECTOR);
413 Aml *is_enabled = aml_name("%s.%s", cphp_res_path, CPU_ENABLED);
414 Aml *cpu_cmd = aml_name("%s.%s", cphp_res_path, CPU_COMMAND);
415 Aml *cpu_data = aml_name("%s.%s", cphp_res_path, CPU_DATA);
416 Aml *ins_evt = aml_name("%s.%s", cphp_res_path, CPU_INSERT_EVENT);
417 Aml *rm_evt = aml_name("%s.%s", cphp_res_path, CPU_REMOVE_EVENT);
418 Aml *ej_evt = aml_name("%s.%s", cphp_res_path, CPU_EJECT_EVENT);
419
420 aml_append(cpus_dev, aml_name_decl("_HID", aml_string("ACPI0010")));
421 aml_append(cpus_dev, aml_name_decl("_CID", aml_eisaid("PNP0A05")));
422
423 method = aml_method(CPU_NOTIFY_METHOD, 2, AML_NOTSERIALIZED);
424 for (i = 0; i < arch_ids->len; i++) {
425 Aml *cpu = aml_name(CPU_NAME_FMT, i);
426 Aml *uid = aml_arg(0);
427 Aml *event = aml_arg(1);
428
429 ifctx = aml_if(aml_equal(uid, aml_int(i)));
430 {
431 aml_append(ifctx, aml_notify(cpu, event));
432 }
433 aml_append(method, ifctx);
434 }
435 aml_append(cpus_dev, method);
436
437 method = aml_method(CPU_STS_METHOD, 1, AML_SERIALIZED);
438 {
439 Aml *idx = aml_arg(0);
440 Aml *sta = aml_local(0);
441
442 aml_append(method, aml_acquire(ctrl_lock, 0xFFFF));
443 aml_append(method, aml_store(idx, cpu_selector));
444 aml_append(method, aml_store(zero, sta));
445 ifctx = aml_if(aml_equal(is_enabled, one));
446 {
447 aml_append(ifctx, aml_store(aml_int(0xF), sta));
448 }
449 aml_append(method, ifctx);
450 aml_append(method, aml_release(ctrl_lock));
451 aml_append(method, aml_return(sta));
452 }
453 aml_append(cpus_dev, method);
454
455 method = aml_method(CPU_EJECT_METHOD, 1, AML_SERIALIZED);
456 {
457 Aml *idx = aml_arg(0);
458
459 aml_append(method, aml_acquire(ctrl_lock, 0xFFFF));
460 aml_append(method, aml_store(idx, cpu_selector));
461 aml_append(method, aml_store(one, ej_evt));
462 aml_append(method, aml_release(ctrl_lock));
463 }
464 aml_append(cpus_dev, method);
465
466 method = aml_method(CPU_SCAN_METHOD, 0, AML_SERIALIZED);
467 {
468 Aml *else_ctx;
469 Aml *while_ctx;
470 Aml *has_event = aml_local(0);
471 Aml *dev_chk = aml_int(1);
472 Aml *eject_req = aml_int(3);
473 Aml *next_cpu_cmd = aml_int(CPHP_GET_NEXT_CPU_WITH_EVENT_CMD);
474
475 aml_append(method, aml_acquire(ctrl_lock, 0xFFFF));
476 aml_append(method, aml_store(one, has_event));
477 while_ctx = aml_while(aml_equal(has_event, one));
478 {
479 /* clear loop exit condition, ins_evt/rm_evt checks
480 * will set it to 1 while next_cpu_cmd returns a CPU
481 * with events */
482 aml_append(while_ctx, aml_store(zero, has_event));
483 aml_append(while_ctx, aml_store(next_cpu_cmd, cpu_cmd));
484 ifctx = aml_if(aml_equal(ins_evt, one));
485 {
486 aml_append(ifctx,
487 aml_call2(CPU_NOTIFY_METHOD, cpu_data, dev_chk));
488 aml_append(ifctx, aml_store(one, ins_evt));
489 aml_append(ifctx, aml_store(one, has_event));
490 }
491 aml_append(while_ctx, ifctx);
492 else_ctx = aml_else();
493 ifctx = aml_if(aml_equal(rm_evt, one));
494 {
495 aml_append(ifctx,
496 aml_call2(CPU_NOTIFY_METHOD, cpu_data, eject_req));
497 aml_append(ifctx, aml_store(one, rm_evt));
498 aml_append(ifctx, aml_store(one, has_event));
499 }
500 aml_append(else_ctx, ifctx);
501 aml_append(while_ctx, else_ctx);
502 }
503 aml_append(method, while_ctx);
504 aml_append(method, aml_release(ctrl_lock));
505 }
506 aml_append(cpus_dev, method);
507
508 method = aml_method(CPU_OST_METHOD, 4, AML_SERIALIZED);
509 {
510 Aml *uid = aml_arg(0);
511 Aml *ev_cmd = aml_int(CPHP_OST_EVENT_CMD);
512 Aml *st_cmd = aml_int(CPHP_OST_STATUS_CMD);
513
514 aml_append(method, aml_acquire(ctrl_lock, 0xFFFF));
515 aml_append(method, aml_store(uid, cpu_selector));
516 aml_append(method, aml_store(ev_cmd, cpu_cmd));
517 aml_append(method, aml_store(aml_arg(1), cpu_data));
518 aml_append(method, aml_store(st_cmd, cpu_cmd));
519 aml_append(method, aml_store(aml_arg(2), cpu_data));
520 aml_append(method, aml_release(ctrl_lock));
521 }
522 aml_append(cpus_dev, method);
523
524 /* build Processor object for each processor */
525 for (i = 0; i < arch_ids->len; i++) {
526 Aml *dev;
527 Aml *uid = aml_int(i);
528 GArray *madt_buf = g_array_new(0, 1, 1);
529 int arch_id = arch_ids->cpus[i].arch_id;
530
531 if (opts.acpi_1_compatible && arch_id < 255) {
532 dev = aml_processor(i, 0, 0, CPU_NAME_FMT, i);
533 } else {
534 dev = aml_device(CPU_NAME_FMT, i);
535 aml_append(dev, aml_name_decl("_HID", aml_string("ACPI0007")));
536 aml_append(dev, aml_name_decl("_UID", uid));
537 }
538
539 method = aml_method("_STA", 0, AML_SERIALIZED);
540 aml_append(method, aml_return(aml_call1(CPU_STS_METHOD, uid)));
541 aml_append(dev, method);
542
543 /* build _MAT object */
544 assert(adevc && adevc->madt_cpu);
545 adevc->madt_cpu(adev, i, arch_ids, madt_buf);
546 switch (madt_buf->data[0]) {
547 case ACPI_APIC_PROCESSOR: {
548 AcpiMadtProcessorApic *apic = (void *)madt_buf->data;
549 apic->flags = cpu_to_le32(1);
550 break;
551 }
552 case ACPI_APIC_LOCAL_X2APIC: {
553 AcpiMadtProcessorX2Apic *apic = (void *)madt_buf->data;
554 apic->flags = cpu_to_le32(1);
555 break;
556 }
557 default:
558 assert(0);
559 }
560 aml_append(dev, aml_name_decl("_MAT",
561 aml_buffer(madt_buf->len, (uint8_t *)madt_buf->data)));
562 g_array_free(madt_buf, true);
563
564 if (CPU(arch_ids->cpus[i].cpu) != first_cpu) {
565 method = aml_method("_EJ0", 1, AML_NOTSERIALIZED);
566 aml_append(method, aml_call1(CPU_EJECT_METHOD, uid));
567 aml_append(dev, method);
568 }
569
570 method = aml_method("_OST", 3, AML_SERIALIZED);
571 aml_append(method,
572 aml_call4(CPU_OST_METHOD, uid, aml_arg(0),
573 aml_arg(1), aml_arg(2))
574 );
575 aml_append(dev, method);
576
577 /* Linux guests discard SRAT info for non-present CPUs
578 * as a result _PXM is required for all CPUs which might
579 * be hot-plugged. For simplicity, add it for all CPUs.
580 */
581 if (arch_ids->cpus[i].props.has_node_id) {
582 aml_append(dev, aml_name_decl("_PXM",
583 aml_int(arch_ids->cpus[i].props.node_id)));
584 }
585
586 aml_append(cpus_dev, dev);
587 }
588 }
589 aml_append(sb_scope, cpus_dev);
590 aml_append(table, sb_scope);
591
592 method = aml_method(event_handler_method, 0, AML_NOTSERIALIZED);
593 aml_append(method, aml_call0("\\_SB.CPUS." CPU_SCAN_METHOD));
594 aml_append(table, method);
595
596 g_free(cphp_res_path);
597 }