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-acpi.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#define OVMF_CPUHP_SMI_CMD 4
18
19enum {
20 CPHP_GET_NEXT_CPU_WITH_EVENT_CMD = 0,
21 CPHP_OST_EVENT_CMD = 1,
22 CPHP_OST_STATUS_CMD = 2,
23 CPHP_GET_CPU_ID_CMD = 3,
24 CPHP_CMD_MAX
25};
26
27static ACPIOSTInfo *acpi_cpu_device_status(int idx, AcpiCpuStatus *cdev)
28{
29 ACPIOSTInfo *info = g_new0(ACPIOSTInfo, 1);
30
31 info->slot_type = ACPI_SLOT_TYPE_CPU;
32 info->slot = g_strdup_printf("%d", idx);
33 info->source = cdev->ost_event;
34 info->status = cdev->ost_status;
35 if (cdev->cpu) {
36 DeviceState *dev = DEVICE(cdev->cpu);
37 if (dev->id) {
38 info->device = g_strdup(dev->id);
39 info->has_device = true;
40 }
41 }
42 return info;
43}
44
45void acpi_cpu_ospm_status(CPUHotplugState *cpu_st, ACPIOSTInfoList ***list)
46{
47 ACPIOSTInfoList ***tail = list;
48 int i;
49
50 for (i = 0; i < cpu_st->dev_count; i++) {
51 QAPI_LIST_APPEND(*tail, acpi_cpu_device_status(i, &cpu_st->devs[i]));
52 }
53}
54
55static uint64_t cpu_hotplug_rd(void *opaque, hwaddr addr, unsigned size)
56{
57 uint64_t val = 0;
58 CPUHotplugState *cpu_st = opaque;
59 AcpiCpuStatus *cdev;
60
61 if (cpu_st->selector >= cpu_st->dev_count) {
62 return val;
63 }
64
65 cdev = &cpu_st->devs[cpu_st->selector];
66 switch (addr) {
67 case ACPI_CPU_FLAGS_OFFSET_RW:
68 val |= cdev->cpu ? 1 : 0;
69 val |= cdev->is_inserting ? 2 : 0;
70 val |= cdev->is_removing ? 4 : 0;
71 val |= cdev->fw_remove ? 16 : 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
106static 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:
124 cpu_st->selector = data;
125 trace_cpuhp_acpi_write_idx(cpu_st->selector);
126 break;
127 case ACPI_CPU_FLAGS_OFFSET_RW:
128 cdev = &cpu_st->devs[cpu_st->selector];
129 if (data & 2) {
130 cdev->is_inserting = false;
131 trace_cpuhp_acpi_clear_inserting_evt(cpu_st->selector);
132 } else if (data & 4) {
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 cdev->fw_remove = false;
150 } else if (data & 16) {
151 if (!cdev->cpu || cdev->cpu == first_cpu) {
152 trace_cpuhp_acpi_fw_remove_invalid_cpu(cpu_st->selector);
153 break;
154 }
155 trace_cpuhp_acpi_fw_remove_cpu(cpu_st->selector);
156 cdev->fw_remove = true;
157 }
158 break;
159 case ACPI_CPU_CMD_OFFSET_WR:
160 trace_cpuhp_acpi_write_cmd(cpu_st->selector, data);
161 if (data < CPHP_CMD_MAX) {
162 cpu_st->command = data;
163 if (cpu_st->command == CPHP_GET_NEXT_CPU_WITH_EVENT_CMD) {
164 uint32_t iter = cpu_st->selector;
165
166 do {
167 cdev = &cpu_st->devs[iter];
168 if (cdev->is_inserting || cdev->is_removing ||
169 cdev->fw_remove) {
170 cpu_st->selector = iter;
171 trace_cpuhp_acpi_cpu_has_events(cpu_st->selector,
172 cdev->is_inserting, cdev->is_removing);
173 break;
174 }
175 iter = iter + 1 < cpu_st->dev_count ? iter + 1 : 0;
176 } while (iter != cpu_st->selector);
177 }
178 }
179 break;
180 case ACPI_CPU_CMD_DATA_OFFSET_RW:
181 switch (cpu_st->command) {
182 case CPHP_OST_EVENT_CMD: {
183 cdev = &cpu_st->devs[cpu_st->selector];
184 cdev->ost_event = data;
185 trace_cpuhp_acpi_write_ost_ev(cpu_st->selector, cdev->ost_event);
186 break;
187 }
188 case CPHP_OST_STATUS_CMD: {
189 cdev = &cpu_st->devs[cpu_st->selector];
190 cdev->ost_status = data;
191 info = acpi_cpu_device_status(cpu_st->selector, cdev);
192 qapi_event_send_acpi_device_ost(info);
193 qapi_free_ACPIOSTInfo(info);
194 trace_cpuhp_acpi_write_ost_status(cpu_st->selector,
195 cdev->ost_status);
196 break;
197 }
198 default:
199 break;
200 }
201 break;
202 default:
203 break;
204 }
205}
206
207static const MemoryRegionOps cpu_hotplug_ops = {
208 .read = cpu_hotplug_rd,
209 .write = cpu_hotplug_wr,
210 .endianness = DEVICE_LITTLE_ENDIAN,
211 .valid = {
212 .min_access_size = 1,
213 .max_access_size = 4,
214 },
215};
216
217void cpu_hotplug_hw_init(MemoryRegion *as, Object *owner,
218 CPUHotplugState *state, hwaddr base_addr)
219{
220 MachineState *machine = MACHINE(qdev_get_machine());
221 MachineClass *mc = MACHINE_GET_CLASS(machine);
222 const CPUArchIdList *id_list;
223 int i;
224
225 assert(mc->possible_cpu_arch_ids);
226 id_list = mc->possible_cpu_arch_ids(machine);
227 state->dev_count = id_list->len;
228 state->devs = g_new0(typeof(*state->devs), state->dev_count);
229 for (i = 0; i < id_list->len; i++) {
230 state->devs[i].cpu = CPU(id_list->cpus[i].cpu);
231 state->devs[i].arch_id = id_list->cpus[i].arch_id;
232 }
233 memory_region_init_io(&state->ctrl_reg, owner, &cpu_hotplug_ops, state,
234 "acpi-cpu-hotplug", ACPI_CPU_HOTPLUG_REG_LEN);
235 memory_region_add_subregion(as, base_addr, &state->ctrl_reg);
236}
237
238static AcpiCpuStatus *get_cpu_status(CPUHotplugState *cpu_st, DeviceState *dev)
239{
240 CPUClass *k = CPU_GET_CLASS(dev);
241 uint64_t cpu_arch_id = k->get_arch_id(CPU(dev));
242 int i;
243
244 for (i = 0; i < cpu_st->dev_count; i++) {
245 if (cpu_arch_id == cpu_st->devs[i].arch_id) {
246 return &cpu_st->devs[i];
247 }
248 }
249 return NULL;
250}
251
252void acpi_cpu_plug_cb(HotplugHandler *hotplug_dev,
253 CPUHotplugState *cpu_st, DeviceState *dev, Error **errp)
254{
255 AcpiCpuStatus *cdev;
256
257 cdev = get_cpu_status(cpu_st, dev);
258 if (!cdev) {
259 return;
260 }
261
262 cdev->cpu = CPU(dev);
263 if (dev->hotplugged) {
264 cdev->is_inserting = true;
265 acpi_send_event(DEVICE(hotplug_dev), ACPI_CPU_HOTPLUG_STATUS);
266 }
267}
268
269void acpi_cpu_unplug_request_cb(HotplugHandler *hotplug_dev,
270 CPUHotplugState *cpu_st,
271 DeviceState *dev, Error **errp)
272{
273 AcpiCpuStatus *cdev;
274
275 cdev = get_cpu_status(cpu_st, dev);
276 if (!cdev) {
277 return;
278 }
279
280 cdev->is_removing = true;
281 acpi_send_event(DEVICE(hotplug_dev), ACPI_CPU_HOTPLUG_STATUS);
282}
283
284void acpi_cpu_unplug_cb(CPUHotplugState *cpu_st,
285 DeviceState *dev, Error **errp)
286{
287 AcpiCpuStatus *cdev;
288
289 cdev = get_cpu_status(cpu_st, dev);
290 if (!cdev) {
291 return;
292 }
293
294 cdev->cpu = NULL;
295}
296
297static const VMStateDescription vmstate_cpuhp_sts = {
298 .name = "CPU hotplug device state",
299 .version_id = 1,
300 .minimum_version_id = 1,
301 .minimum_version_id_old = 1,
302 .fields = (VMStateField[]) {
303 VMSTATE_BOOL(is_inserting, AcpiCpuStatus),
304 VMSTATE_BOOL(is_removing, AcpiCpuStatus),
305 VMSTATE_UINT32(ost_event, AcpiCpuStatus),
306 VMSTATE_UINT32(ost_status, AcpiCpuStatus),
307 VMSTATE_END_OF_LIST()
308 }
309};
310
311const VMStateDescription vmstate_cpu_hotplug = {
312 .name = "CPU hotplug state",
313 .version_id = 1,
314 .minimum_version_id = 1,
315 .minimum_version_id_old = 1,
316 .fields = (VMStateField[]) {
317 VMSTATE_UINT32(selector, CPUHotplugState),
318 VMSTATE_UINT8(command, CPUHotplugState),
319 VMSTATE_STRUCT_VARRAY_POINTER_UINT32(devs, CPUHotplugState, dev_count,
320 vmstate_cpuhp_sts, AcpiCpuStatus),
321 VMSTATE_END_OF_LIST()
322 }
323};
324
325#define CPU_NAME_FMT "C%.03X"
326#define CPUHP_RES_DEVICE "PRES"
327#define CPU_LOCK "CPLK"
328#define CPU_STS_METHOD "CSTA"
329#define CPU_SCAN_METHOD "CSCN"
330#define CPU_NOTIFY_METHOD "CTFY"
331#define CPU_EJECT_METHOD "CEJ0"
332#define CPU_OST_METHOD "COST"
333#define CPU_ADDED_LIST "CNEW"
334
335#define CPU_ENABLED "CPEN"
336#define CPU_SELECTOR "CSEL"
337#define CPU_COMMAND "CCMD"
338#define CPU_DATA "CDAT"
339#define CPU_INSERT_EVENT "CINS"
340#define CPU_REMOVE_EVENT "CRMV"
341#define CPU_EJECT_EVENT "CEJ0"
342#define CPU_FW_EJECT_EVENT "CEJF"
343
344void build_cpus_aml(Aml *table, MachineState *machine, CPUHotplugFeatures opts,
345 hwaddr io_base,
346 const char *res_root,
347 const char *event_handler_method)
348{
349 Aml *ifctx;
350 Aml *field;
351 Aml *method;
352 Aml *cpu_ctrl_dev;
353 Aml *cpus_dev;
354 Aml *zero = aml_int(0);
355 Aml *one = aml_int(1);
356 Aml *sb_scope = aml_scope("_SB");
357 MachineClass *mc = MACHINE_GET_CLASS(machine);
358 const CPUArchIdList *arch_ids = mc->possible_cpu_arch_ids(machine);
359 char *cphp_res_path = g_strdup_printf("%s." CPUHP_RES_DEVICE, res_root);
360 Object *obj = object_resolve_path_type("", TYPE_ACPI_DEVICE_IF, NULL);
361 AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_GET_CLASS(obj);
362 AcpiDeviceIf *adev = ACPI_DEVICE_IF(obj);
363
364 cpu_ctrl_dev = aml_device("%s", cphp_res_path);
365 {
366 Aml *crs;
367
368 aml_append(cpu_ctrl_dev,
369 aml_name_decl("_HID", aml_eisaid("PNP0A06")));
370 aml_append(cpu_ctrl_dev,
371 aml_name_decl("_UID", aml_string("CPU Hotplug resources")));
372 aml_append(cpu_ctrl_dev, aml_mutex(CPU_LOCK, 0));
373
374 crs = aml_resource_template();
375 aml_append(crs, aml_io(AML_DECODE16, io_base, io_base, 1,
376 ACPI_CPU_HOTPLUG_REG_LEN));
377 aml_append(cpu_ctrl_dev, aml_name_decl("_CRS", crs));
378
379
380 aml_append(cpu_ctrl_dev,
381 aml_operation_region("PRST", AML_SYSTEM_IO, aml_int(io_base),
382 ACPI_CPU_HOTPLUG_REG_LEN));
383
384 field = aml_field("PRST", AML_BYTE_ACC, AML_NOLOCK,
385 AML_WRITE_AS_ZEROS);
386 aml_append(field, aml_reserved_field(ACPI_CPU_FLAGS_OFFSET_RW * 8));
387
388 aml_append(field, aml_named_field(CPU_ENABLED, 1));
389
390 aml_append(field, aml_named_field(CPU_INSERT_EVENT, 1));
391
392 aml_append(field, aml_named_field(CPU_REMOVE_EVENT, 1));
393
394 aml_append(field, aml_named_field(CPU_EJECT_EVENT, 1));
395
396 aml_append(field, aml_named_field(CPU_FW_EJECT_EVENT, 1));
397 aml_append(field, aml_reserved_field(3));
398 aml_append(field, aml_named_field(CPU_COMMAND, 8));
399 aml_append(cpu_ctrl_dev, field);
400
401 field = aml_field("PRST", AML_DWORD_ACC, AML_NOLOCK, AML_PRESERVE);
402
403 aml_append(field, aml_named_field(CPU_SELECTOR, 32));
404
405 aml_append(field, aml_reserved_field(4 * 8));
406 aml_append(field, aml_named_field(CPU_DATA, 32));
407 aml_append(cpu_ctrl_dev, field);
408
409 if (opts.has_legacy_cphp) {
410 method = aml_method("_INI", 0, AML_SERIALIZED);
411
412
413
414
415 aml_append(method, aml_store(zero, aml_name(CPU_SELECTOR)));
416 aml_append(cpu_ctrl_dev, method);
417 }
418 }
419 aml_append(sb_scope, cpu_ctrl_dev);
420
421 cpus_dev = aml_device("\\_SB.CPUS");
422 {
423 int i;
424 Aml *ctrl_lock = aml_name("%s.%s", cphp_res_path, CPU_LOCK);
425 Aml *cpu_selector = aml_name("%s.%s", cphp_res_path, CPU_SELECTOR);
426 Aml *is_enabled = aml_name("%s.%s", cphp_res_path, CPU_ENABLED);
427 Aml *cpu_cmd = aml_name("%s.%s", cphp_res_path, CPU_COMMAND);
428 Aml *cpu_data = aml_name("%s.%s", cphp_res_path, CPU_DATA);
429 Aml *ins_evt = aml_name("%s.%s", cphp_res_path, CPU_INSERT_EVENT);
430 Aml *rm_evt = aml_name("%s.%s", cphp_res_path, CPU_REMOVE_EVENT);
431 Aml *ej_evt = aml_name("%s.%s", cphp_res_path, CPU_EJECT_EVENT);
432 Aml *fw_ej_evt = aml_name("%s.%s", cphp_res_path, CPU_FW_EJECT_EVENT);
433
434 aml_append(cpus_dev, aml_name_decl("_HID", aml_string("ACPI0010")));
435 aml_append(cpus_dev, aml_name_decl("_CID", aml_eisaid("PNP0A05")));
436
437 method = aml_method(CPU_NOTIFY_METHOD, 2, AML_NOTSERIALIZED);
438 for (i = 0; i < arch_ids->len; i++) {
439 Aml *cpu = aml_name(CPU_NAME_FMT, i);
440 Aml *uid = aml_arg(0);
441 Aml *event = aml_arg(1);
442
443 ifctx = aml_if(aml_equal(uid, aml_int(i)));
444 {
445 aml_append(ifctx, aml_notify(cpu, event));
446 }
447 aml_append(method, ifctx);
448 }
449 aml_append(cpus_dev, method);
450
451 method = aml_method(CPU_STS_METHOD, 1, AML_SERIALIZED);
452 {
453 Aml *idx = aml_arg(0);
454 Aml *sta = aml_local(0);
455
456 aml_append(method, aml_acquire(ctrl_lock, 0xFFFF));
457 aml_append(method, aml_store(idx, cpu_selector));
458 aml_append(method, aml_store(zero, sta));
459 ifctx = aml_if(aml_equal(is_enabled, one));
460 {
461 aml_append(ifctx, aml_store(aml_int(0xF), sta));
462 }
463 aml_append(method, ifctx);
464 aml_append(method, aml_release(ctrl_lock));
465 aml_append(method, aml_return(sta));
466 }
467 aml_append(cpus_dev, method);
468
469 method = aml_method(CPU_EJECT_METHOD, 1, AML_SERIALIZED);
470 {
471 Aml *idx = aml_arg(0);
472
473 aml_append(method, aml_acquire(ctrl_lock, 0xFFFF));
474 aml_append(method, aml_store(idx, cpu_selector));
475 if (opts.fw_unplugs_cpu) {
476 aml_append(method, aml_store(one, fw_ej_evt));
477 aml_append(method, aml_store(aml_int(OVMF_CPUHP_SMI_CMD),
478 aml_name("%s", opts.smi_path)));
479 } else {
480 aml_append(method, aml_store(one, ej_evt));
481 }
482 aml_append(method, aml_release(ctrl_lock));
483 }
484 aml_append(cpus_dev, method);
485
486 method = aml_method(CPU_SCAN_METHOD, 0, AML_SERIALIZED);
487 {
488 const uint8_t max_cpus_per_pass = 255;
489 Aml *else_ctx;
490 Aml *while_ctx, *while_ctx2;
491 Aml *has_event = aml_local(0);
492 Aml *dev_chk = aml_int(1);
493 Aml *eject_req = aml_int(3);
494 Aml *next_cpu_cmd = aml_int(CPHP_GET_NEXT_CPU_WITH_EVENT_CMD);
495 Aml *num_added_cpus = aml_local(1);
496 Aml *cpu_idx = aml_local(2);
497 Aml *uid = aml_local(3);
498 Aml *has_job = aml_local(4);
499 Aml *new_cpus = aml_name(CPU_ADDED_LIST);
500
501 aml_append(method, aml_acquire(ctrl_lock, 0xFFFF));
502
503
504
505
506
507
508
509
510
511
512 aml_append(method, aml_name_decl(CPU_ADDED_LIST,
513 aml_package(max_cpus_per_pass)));
514
515 aml_append(method, aml_store(zero, uid));
516 aml_append(method, aml_store(one, has_job));
517
518
519
520
521
522 while_ctx2 = aml_while(aml_equal(has_job, one));
523 {
524 aml_append(while_ctx2, aml_store(zero, has_job));
525
526 aml_append(while_ctx2, aml_store(one, has_event));
527 aml_append(while_ctx2, aml_store(zero, num_added_cpus));
528
529
530
531
532
533 while_ctx = aml_while(aml_land(aml_equal(has_event, one),
534 aml_lless(uid, aml_int(arch_ids->len))));
535 {
536
537
538
539
540 aml_append(while_ctx, aml_store(zero, has_event));
541
542 aml_append(while_ctx, aml_store(uid, cpu_selector));
543 aml_append(while_ctx, aml_store(next_cpu_cmd, cpu_cmd));
544
545
546
547
548
549
550 ifctx = aml_if(aml_lless(cpu_data, uid));
551 {
552 aml_append(ifctx, aml_break());
553 }
554 aml_append(while_ctx, ifctx);
555
556
557
558
559
560 ifctx = aml_if(
561 aml_equal(num_added_cpus, aml_int(max_cpus_per_pass)));
562 {
563 aml_append(ifctx, aml_store(one, has_job));
564 aml_append(ifctx, aml_break());
565 }
566 aml_append(while_ctx, ifctx);
567
568 aml_append(while_ctx, aml_store(cpu_data, uid));
569 ifctx = aml_if(aml_equal(ins_evt, one));
570 {
571
572 aml_append(ifctx, aml_store(uid,
573 aml_index(new_cpus, num_added_cpus)));
574 aml_append(ifctx, aml_increment(num_added_cpus));
575 aml_append(ifctx, aml_store(one, has_event));
576 }
577 aml_append(while_ctx, ifctx);
578 else_ctx = aml_else();
579 ifctx = aml_if(aml_equal(rm_evt, one));
580 {
581 aml_append(ifctx,
582 aml_call2(CPU_NOTIFY_METHOD, uid, eject_req));
583 aml_append(ifctx, aml_store(one, rm_evt));
584 aml_append(ifctx, aml_store(one, has_event));
585 }
586 aml_append(else_ctx, ifctx);
587 aml_append(while_ctx, else_ctx);
588 aml_append(while_ctx, aml_increment(uid));
589 }
590 aml_append(while_ctx2, while_ctx);
591
592
593
594
595
596
597 if (opts.smi_path) {
598 ifctx = aml_if(aml_lgreater(num_added_cpus, zero));
599 {
600 aml_append(ifctx, aml_store(aml_int(OVMF_CPUHP_SMI_CMD),
601 aml_name("%s", opts.smi_path)));
602 }
603 aml_append(while_ctx2, ifctx);
604 }
605
606
607 aml_append(while_ctx2, aml_store(zero, cpu_idx));
608 while_ctx = aml_while(aml_lless(cpu_idx, num_added_cpus));
609 {
610 aml_append(while_ctx,
611 aml_store(aml_derefof(aml_index(new_cpus, cpu_idx)),
612 uid));
613 aml_append(while_ctx,
614 aml_call2(CPU_NOTIFY_METHOD, uid, dev_chk));
615 aml_append(while_ctx, aml_store(uid, aml_debug()));
616 aml_append(while_ctx, aml_store(uid, cpu_selector));
617 aml_append(while_ctx, aml_store(one, ins_evt));
618 aml_append(while_ctx, aml_increment(cpu_idx));
619 }
620 aml_append(while_ctx2, while_ctx);
621
622
623
624
625
626
627
628
629
630 }
631 aml_append(method, while_ctx2);
632 aml_append(method, aml_release(ctrl_lock));
633 }
634 aml_append(cpus_dev, method);
635
636 method = aml_method(CPU_OST_METHOD, 4, AML_SERIALIZED);
637 {
638 Aml *uid = aml_arg(0);
639 Aml *ev_cmd = aml_int(CPHP_OST_EVENT_CMD);
640 Aml *st_cmd = aml_int(CPHP_OST_STATUS_CMD);
641
642 aml_append(method, aml_acquire(ctrl_lock, 0xFFFF));
643 aml_append(method, aml_store(uid, cpu_selector));
644 aml_append(method, aml_store(ev_cmd, cpu_cmd));
645 aml_append(method, aml_store(aml_arg(1), cpu_data));
646 aml_append(method, aml_store(st_cmd, cpu_cmd));
647 aml_append(method, aml_store(aml_arg(2), cpu_data));
648 aml_append(method, aml_release(ctrl_lock));
649 }
650 aml_append(cpus_dev, method);
651
652
653 for (i = 0; i < arch_ids->len; i++) {
654 Aml *dev;
655 Aml *uid = aml_int(i);
656 GArray *madt_buf = g_array_new(0, 1, 1);
657 int arch_id = arch_ids->cpus[i].arch_id;
658
659 if (opts.acpi_1_compatible && arch_id < 255) {
660 dev = aml_processor(i, 0, 0, CPU_NAME_FMT, i);
661 } else {
662 dev = aml_device(CPU_NAME_FMT, i);
663 aml_append(dev, aml_name_decl("_HID", aml_string("ACPI0007")));
664 aml_append(dev, aml_name_decl("_UID", uid));
665 }
666
667 method = aml_method("_STA", 0, AML_SERIALIZED);
668 aml_append(method, aml_return(aml_call1(CPU_STS_METHOD, uid)));
669 aml_append(dev, method);
670
671
672 assert(adevc && adevc->madt_cpu);
673 adevc->madt_cpu(adev, i, arch_ids, madt_buf);
674 switch (madt_buf->data[0]) {
675 case ACPI_APIC_PROCESSOR: {
676 AcpiMadtProcessorApic *apic = (void *)madt_buf->data;
677 apic->flags = cpu_to_le32(1);
678 break;
679 }
680 case ACPI_APIC_LOCAL_X2APIC: {
681 AcpiMadtProcessorX2Apic *apic = (void *)madt_buf->data;
682 apic->flags = cpu_to_le32(1);
683 break;
684 }
685 default:
686 assert(0);
687 }
688 aml_append(dev, aml_name_decl("_MAT",
689 aml_buffer(madt_buf->len, (uint8_t *)madt_buf->data)));
690 g_array_free(madt_buf, true);
691
692 if (CPU(arch_ids->cpus[i].cpu) != first_cpu) {
693 method = aml_method("_EJ0", 1, AML_NOTSERIALIZED);
694 aml_append(method, aml_call1(CPU_EJECT_METHOD, uid));
695 aml_append(dev, method);
696 }
697
698 method = aml_method("_OST", 3, AML_SERIALIZED);
699 aml_append(method,
700 aml_call4(CPU_OST_METHOD, uid, aml_arg(0),
701 aml_arg(1), aml_arg(2))
702 );
703 aml_append(dev, method);
704
705
706
707
708
709 if (arch_ids->cpus[i].props.has_node_id) {
710 aml_append(dev, aml_name_decl("_PXM",
711 aml_int(arch_ids->cpus[i].props.node_id)));
712 }
713
714 aml_append(cpus_dev, dev);
715 }
716 }
717 aml_append(sb_scope, cpus_dev);
718 aml_append(table, sb_scope);
719
720 method = aml_method(event_handler_method, 0, AML_NOTSERIALIZED);
721 aml_append(method, aml_call0("\\_SB.CPUS." CPU_SCAN_METHOD));
722 aml_append(table, method);
723
724 g_free(cphp_res_path);
725}
726
