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21#include "qemu/osdep.h"
22#include "hw/hw.h"
23#include "hw/i386/pc.h"
24#include "hw/isa/apm.h"
25#include "hw/i2c/pm_smbus.h"
26#include "hw/pci/pci.h"
27#include "hw/acpi/acpi.h"
28#include "sysemu/sysemu.h"
29#include "qapi/error.h"
30#include "qemu/range.h"
31#include "exec/ioport.h"
32#include "hw/nvram/fw_cfg.h"
33#include "exec/address-spaces.h"
34#include "hw/acpi/piix4.h"
35#include "hw/acpi/pcihp.h"
36#include "hw/acpi/cpu_hotplug.h"
37#include "hw/acpi/cpu.h"
38#include "hw/hotplug.h"
39#include "hw/mem/pc-dimm.h"
40#include "hw/acpi/memory_hotplug.h"
41#include "hw/acpi/acpi_dev_interface.h"
42#include "hw/xen/xen.h"
43#include "qom/cpu.h"
44
45
46
47#ifdef DEBUG
48# define PIIX4_DPRINTF(format, ...) printf(format, ## __VA_ARGS__)
49#else
50# define PIIX4_DPRINTF(format, ...) do { } while (0)
51#endif
52
53#define GPE_BASE 0xafe0
54#define GPE_LEN 4
55
56struct pci_status {
57 uint32_t up;
58 uint32_t down;
59};
60
61typedef struct PIIX4PMState {
62
63 PCIDevice parent_obj;
64
65
66 MemoryRegion io;
67 uint32_t io_base;
68
69 MemoryRegion io_gpe;
70 ACPIREGS ar;
71
72 APMState apm;
73
74 PMSMBus smb;
75 uint32_t smb_io_base;
76
77 qemu_irq irq;
78 qemu_irq smi_irq;
79 int smm_enabled;
80 Notifier machine_ready;
81 Notifier powerdown_notifier;
82
83 AcpiPciHpState acpi_pci_hotplug;
84 bool use_acpi_pci_hotplug;
85
86 uint8_t disable_s3;
87 uint8_t disable_s4;
88 uint8_t s4_val;
89
90 bool cpu_hotplug_legacy;
91 AcpiCpuHotplug gpe_cpu;
92 CPUHotplugState cpuhp_state;
93
94 MemHotplugState acpi_memory_hotplug;
95} PIIX4PMState;
96
97#define TYPE_PIIX4_PM "PIIX4_PM"
98
99#define PIIX4_PM(obj) \
100 OBJECT_CHECK(PIIX4PMState, (obj), TYPE_PIIX4_PM)
101
102static void piix4_acpi_system_hot_add_init(MemoryRegion *parent,
103 PCIBus *bus, PIIX4PMState *s);
104
105#define ACPI_ENABLE 0xf1
106#define ACPI_DISABLE 0xf0
107
108static void pm_tmr_timer(ACPIREGS *ar)
109{
110 PIIX4PMState *s = container_of(ar, PIIX4PMState, ar);
111 acpi_update_sci(&s->ar, s->irq);
112}
113
114static void apm_ctrl_changed(uint32_t val, void *arg)
115{
116 PIIX4PMState *s = arg;
117 PCIDevice *d = PCI_DEVICE(s);
118
119
120 acpi_pm1_cnt_update(&s->ar, val == ACPI_ENABLE, val == ACPI_DISABLE);
121 if (val == ACPI_ENABLE || val == ACPI_DISABLE) {
122 return;
123 }
124
125 if (d->config[0x5b] & (1 << 1)) {
126 if (s->smi_irq) {
127 qemu_irq_raise(s->smi_irq);
128 }
129 }
130}
131
132static void pm_io_space_update(PIIX4PMState *s)
133{
134 PCIDevice *d = PCI_DEVICE(s);
135
136 s->io_base = le32_to_cpu(*(uint32_t *)(d->config + 0x40));
137 s->io_base &= 0xffc0;
138
139 memory_region_transaction_begin();
140 memory_region_set_enabled(&s->io, d->config[0x80] & 1);
141 memory_region_set_address(&s->io, s->io_base);
142 memory_region_transaction_commit();
143}
144
145static void smbus_io_space_update(PIIX4PMState *s)
146{
147 PCIDevice *d = PCI_DEVICE(s);
148
149 s->smb_io_base = le32_to_cpu(*(uint32_t *)(d->config + 0x90));
150 s->smb_io_base &= 0xffc0;
151
152 memory_region_transaction_begin();
153 memory_region_set_enabled(&s->smb.io, d->config[0xd2] & 1);
154 memory_region_set_address(&s->smb.io, s->smb_io_base);
155 memory_region_transaction_commit();
156}
157
158static void pm_write_config(PCIDevice *d,
159 uint32_t address, uint32_t val, int len)
160{
161 pci_default_write_config(d, address, val, len);
162 if (range_covers_byte(address, len, 0x80) ||
163 ranges_overlap(address, len, 0x40, 4)) {
164 pm_io_space_update((PIIX4PMState *)d);
165 }
166 if (range_covers_byte(address, len, 0xd2) ||
167 ranges_overlap(address, len, 0x90, 4)) {
168 smbus_io_space_update((PIIX4PMState *)d);
169 }
170}
171
172static int vmstate_acpi_post_load(void *opaque, int version_id)
173{
174 PIIX4PMState *s = opaque;
175
176 pm_io_space_update(s);
177 return 0;
178}
179
180#define VMSTATE_GPE_ARRAY(_field, _state) \
181 { \
182 .name = (stringify(_field)), \
183 .version_id = 0, \
184 .info = &vmstate_info_uint16, \
185 .size = sizeof(uint16_t), \
186 .flags = VMS_SINGLE | VMS_POINTER, \
187 .offset = vmstate_offset_pointer(_state, _field, uint8_t), \
188 }
189
190static const VMStateDescription vmstate_gpe = {
191 .name = "gpe",
192 .version_id = 1,
193 .minimum_version_id = 1,
194 .fields = (VMStateField[]) {
195 VMSTATE_GPE_ARRAY(sts, ACPIGPE),
196 VMSTATE_GPE_ARRAY(en, ACPIGPE),
197 VMSTATE_END_OF_LIST()
198 }
199};
200
201static const VMStateDescription vmstate_pci_status = {
202 .name = "pci_status",
203 .version_id = 1,
204 .minimum_version_id = 1,
205 .fields = (VMStateField[]) {
206 VMSTATE_UINT32(up, struct AcpiPciHpPciStatus),
207 VMSTATE_UINT32(down, struct AcpiPciHpPciStatus),
208 VMSTATE_END_OF_LIST()
209 }
210};
211
212static int acpi_load_old(QEMUFile *f, void *opaque, int version_id)
213{
214 PIIX4PMState *s = opaque;
215 int ret, i;
216 uint16_t temp;
217
218 ret = pci_device_load(PCI_DEVICE(s), f);
219 if (ret < 0) {
220 return ret;
221 }
222 qemu_get_be16s(f, &s->ar.pm1.evt.sts);
223 qemu_get_be16s(f, &s->ar.pm1.evt.en);
224 qemu_get_be16s(f, &s->ar.pm1.cnt.cnt);
225
226 ret = vmstate_load_state(f, &vmstate_apm, &s->apm, 1);
227 if (ret) {
228 return ret;
229 }
230
231 timer_get(f, s->ar.tmr.timer);
232 qemu_get_sbe64s(f, &s->ar.tmr.overflow_time);
233
234 qemu_get_be16s(f, (uint16_t *)s->ar.gpe.sts);
235 for (i = 0; i < 3; i++) {
236 qemu_get_be16s(f, &temp);
237 }
238
239 qemu_get_be16s(f, (uint16_t *)s->ar.gpe.en);
240 for (i = 0; i < 3; i++) {
241 qemu_get_be16s(f, &temp);
242 }
243
244 ret = vmstate_load_state(f, &vmstate_pci_status,
245 &s->acpi_pci_hotplug.acpi_pcihp_pci_status[ACPI_PCIHP_BSEL_DEFAULT], 1);
246 return ret;
247}
248
249static bool vmstate_test_use_acpi_pci_hotplug(void *opaque, int version_id)
250{
251 PIIX4PMState *s = opaque;
252 return s->use_acpi_pci_hotplug;
253}
254
255static bool vmstate_test_no_use_acpi_pci_hotplug(void *opaque, int version_id)
256{
257 PIIX4PMState *s = opaque;
258 return !s->use_acpi_pci_hotplug;
259}
260
261static bool vmstate_test_use_memhp(void *opaque)
262{
263 PIIX4PMState *s = opaque;
264 return s->acpi_memory_hotplug.is_enabled;
265}
266
267static const VMStateDescription vmstate_memhp_state = {
268 .name = "piix4_pm/memhp",
269 .version_id = 1,
270 .minimum_version_id = 1,
271 .minimum_version_id_old = 1,
272 .needed = vmstate_test_use_memhp,
273 .fields = (VMStateField[]) {
274 VMSTATE_MEMORY_HOTPLUG(acpi_memory_hotplug, PIIX4PMState),
275 VMSTATE_END_OF_LIST()
276 }
277};
278
279static bool vmstate_test_use_cpuhp(void *opaque)
280{
281 PIIX4PMState *s = opaque;
282 return !s->cpu_hotplug_legacy;
283}
284
285static int vmstate_cpuhp_pre_load(void *opaque)
286{
287 Object *obj = OBJECT(opaque);
288 object_property_set_bool(obj, false, "cpu-hotplug-legacy", &error_abort);
289 return 0;
290}
291
292static const VMStateDescription vmstate_cpuhp_state = {
293 .name = "piix4_pm/cpuhp",
294 .version_id = 1,
295 .minimum_version_id = 1,
296 .minimum_version_id_old = 1,
297 .needed = vmstate_test_use_cpuhp,
298 .pre_load = vmstate_cpuhp_pre_load,
299 .fields = (VMStateField[]) {
300 VMSTATE_CPU_HOTPLUG(cpuhp_state, PIIX4PMState),
301 VMSTATE_END_OF_LIST()
302 }
303};
304
305
306
307
308
309
310
311static const VMStateDescription vmstate_acpi = {
312 .name = "piix4_pm",
313 .version_id = 3,
314 .minimum_version_id = 3,
315 .minimum_version_id_old = 1,
316 .load_state_old = acpi_load_old,
317 .post_load = vmstate_acpi_post_load,
318 .fields = (VMStateField[]) {
319 VMSTATE_PCI_DEVICE(parent_obj, PIIX4PMState),
320 VMSTATE_UINT16(ar.pm1.evt.sts, PIIX4PMState),
321 VMSTATE_UINT16(ar.pm1.evt.en, PIIX4PMState),
322 VMSTATE_UINT16(ar.pm1.cnt.cnt, PIIX4PMState),
323 VMSTATE_STRUCT(apm, PIIX4PMState, 0, vmstate_apm, APMState),
324 VMSTATE_TIMER_PTR(ar.tmr.timer, PIIX4PMState),
325 VMSTATE_INT64(ar.tmr.overflow_time, PIIX4PMState),
326 VMSTATE_STRUCT(ar.gpe, PIIX4PMState, 2, vmstate_gpe, ACPIGPE),
327 VMSTATE_STRUCT_TEST(
328 acpi_pci_hotplug.acpi_pcihp_pci_status[ACPI_PCIHP_BSEL_DEFAULT],
329 PIIX4PMState,
330 vmstate_test_no_use_acpi_pci_hotplug,
331 2, vmstate_pci_status,
332 struct AcpiPciHpPciStatus),
333 VMSTATE_PCI_HOTPLUG(acpi_pci_hotplug, PIIX4PMState,
334 vmstate_test_use_acpi_pci_hotplug),
335 VMSTATE_END_OF_LIST()
336 },
337 .subsections = (const VMStateDescription*[]) {
338 &vmstate_memhp_state,
339 &vmstate_cpuhp_state,
340 NULL
341 }
342};
343
344static void piix4_reset(void *opaque)
345{
346 PIIX4PMState *s = opaque;
347 PCIDevice *d = PCI_DEVICE(s);
348 uint8_t *pci_conf = d->config;
349
350 pci_conf[0x58] = 0;
351 pci_conf[0x59] = 0;
352 pci_conf[0x5a] = 0;
353 pci_conf[0x5b] = 0;
354
355 pci_conf[0x40] = 0x01;
356 pci_conf[0x80] = 0;
357
358 if (!s->smm_enabled) {
359
360 pci_conf[0x5B] = 0x02;
361 }
362 pm_io_space_update(s);
363 acpi_pcihp_reset(&s->acpi_pci_hotplug);
364}
365
366static void piix4_pm_powerdown_req(Notifier *n, void *opaque)
367{
368 PIIX4PMState *s = container_of(n, PIIX4PMState, powerdown_notifier);
369
370 assert(s != NULL);
371 acpi_pm1_evt_power_down(&s->ar);
372}
373
374static void piix4_device_plug_cb(HotplugHandler *hotplug_dev,
375 DeviceState *dev, Error **errp)
376{
377 PIIX4PMState *s = PIIX4_PM(hotplug_dev);
378
379 if (s->acpi_memory_hotplug.is_enabled &&
380 object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
381 if (object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)) {
382 nvdimm_acpi_plug_cb(hotplug_dev, dev);
383 } else {
384 acpi_memory_plug_cb(hotplug_dev, &s->acpi_memory_hotplug,
385 dev, errp);
386 }
387 } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
388 acpi_pcihp_device_plug_cb(hotplug_dev, &s->acpi_pci_hotplug, dev, errp);
389 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
390 if (s->cpu_hotplug_legacy) {
391 legacy_acpi_cpu_plug_cb(hotplug_dev, &s->gpe_cpu, dev, errp);
392 } else {
393 acpi_cpu_plug_cb(hotplug_dev, &s->cpuhp_state, dev, errp);
394 }
395 } else {
396 error_setg(errp, "acpi: device plug request for not supported device"
397 " type: %s", object_get_typename(OBJECT(dev)));
398 }
399}
400
401static void piix4_device_unplug_request_cb(HotplugHandler *hotplug_dev,
402 DeviceState *dev, Error **errp)
403{
404 PIIX4PMState *s = PIIX4_PM(hotplug_dev);
405
406 if (s->acpi_memory_hotplug.is_enabled &&
407 object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
408 acpi_memory_unplug_request_cb(hotplug_dev, &s->acpi_memory_hotplug,
409 dev, errp);
410 } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
411 acpi_pcihp_device_unplug_cb(hotplug_dev, &s->acpi_pci_hotplug, dev,
412 errp);
413 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU) &&
414 !s->cpu_hotplug_legacy) {
415 acpi_cpu_unplug_request_cb(hotplug_dev, &s->cpuhp_state, dev, errp);
416 } else {
417 error_setg(errp, "acpi: device unplug request for not supported device"
418 " type: %s", object_get_typename(OBJECT(dev)));
419 }
420}
421
422static void piix4_device_unplug_cb(HotplugHandler *hotplug_dev,
423 DeviceState *dev, Error **errp)
424{
425 PIIX4PMState *s = PIIX4_PM(hotplug_dev);
426
427 if (s->acpi_memory_hotplug.is_enabled &&
428 object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
429 acpi_memory_unplug_cb(&s->acpi_memory_hotplug, dev, errp);
430 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU) &&
431 !s->cpu_hotplug_legacy) {
432 acpi_cpu_unplug_cb(&s->cpuhp_state, dev, errp);
433 } else {
434 error_setg(errp, "acpi: device unplug for not supported device"
435 " type: %s", object_get_typename(OBJECT(dev)));
436 }
437}
438
439static void piix4_update_bus_hotplug(PCIBus *pci_bus, void *opaque)
440{
441 PIIX4PMState *s = opaque;
442
443 qbus_set_hotplug_handler(BUS(pci_bus), DEVICE(s), &error_abort);
444}
445
446static void piix4_pm_machine_ready(Notifier *n, void *opaque)
447{
448 PIIX4PMState *s = container_of(n, PIIX4PMState, machine_ready);
449 PCIDevice *d = PCI_DEVICE(s);
450 MemoryRegion *io_as = pci_address_space_io(d);
451 uint8_t *pci_conf;
452
453 pci_conf = d->config;
454 pci_conf[0x5f] = 0x10 |
455 (memory_region_present(io_as, 0x378) ? 0x80 : 0);
456 pci_conf[0x63] = 0x60;
457 pci_conf[0x67] = (memory_region_present(io_as, 0x3f8) ? 0x08 : 0) |
458 (memory_region_present(io_as, 0x2f8) ? 0x90 : 0);
459
460 if (s->use_acpi_pci_hotplug) {
461 pci_for_each_bus(d->bus, piix4_update_bus_hotplug, s);
462 } else {
463 piix4_update_bus_hotplug(d->bus, s);
464 }
465}
466
467static void piix4_pm_add_propeties(PIIX4PMState *s)
468{
469 static const uint8_t acpi_enable_cmd = ACPI_ENABLE;
470 static const uint8_t acpi_disable_cmd = ACPI_DISABLE;
471 static const uint32_t gpe0_blk = GPE_BASE;
472 static const uint32_t gpe0_blk_len = GPE_LEN;
473 static const uint16_t sci_int = 9;
474
475 object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_ENABLE_CMD,
476 &acpi_enable_cmd, NULL);
477 object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_DISABLE_CMD,
478 &acpi_disable_cmd, NULL);
479 object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK,
480 &gpe0_blk, NULL);
481 object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK_LEN,
482 &gpe0_blk_len, NULL);
483 object_property_add_uint16_ptr(OBJECT(s), ACPI_PM_PROP_SCI_INT,
484 &sci_int, NULL);
485 object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_PM_IO_BASE,
486 &s->io_base, NULL);
487}
488
489static void piix4_pm_realize(PCIDevice *dev, Error **errp)
490{
491 PIIX4PMState *s = PIIX4_PM(dev);
492 uint8_t *pci_conf;
493
494 pci_conf = dev->config;
495 pci_conf[0x06] = 0x80;
496 pci_conf[0x07] = 0x02;
497 pci_conf[0x09] = 0x00;
498 pci_conf[0x3d] = 0x01;
499
500
501 apm_init(dev, &s->apm, apm_ctrl_changed, s);
502
503 if (!s->smm_enabled) {
504
505
506 pci_conf[0x5B] = 0x02;
507 }
508
509
510
511 pci_conf[0x90] = s->smb_io_base | 1;
512 pci_conf[0x91] = s->smb_io_base >> 8;
513 pci_conf[0xd2] = 0x09;
514 pm_smbus_init(DEVICE(dev), &s->smb);
515 memory_region_set_enabled(&s->smb.io, pci_conf[0xd2] & 1);
516 memory_region_add_subregion(pci_address_space_io(dev),
517 s->smb_io_base, &s->smb.io);
518
519 memory_region_init(&s->io, OBJECT(s), "piix4-pm", 64);
520 memory_region_set_enabled(&s->io, false);
521 memory_region_add_subregion(pci_address_space_io(dev),
522 0, &s->io);
523
524 acpi_pm_tmr_init(&s->ar, pm_tmr_timer, &s->io);
525 acpi_pm1_evt_init(&s->ar, pm_tmr_timer, &s->io);
526 acpi_pm1_cnt_init(&s->ar, &s->io, s->disable_s3, s->disable_s4, s->s4_val);
527 acpi_gpe_init(&s->ar, GPE_LEN);
528
529 s->powerdown_notifier.notify = piix4_pm_powerdown_req;
530 qemu_register_powerdown_notifier(&s->powerdown_notifier);
531
532 s->machine_ready.notify = piix4_pm_machine_ready;
533 qemu_add_machine_init_done_notifier(&s->machine_ready);
534 qemu_register_reset(piix4_reset, s);
535
536 piix4_acpi_system_hot_add_init(pci_address_space_io(dev), dev->bus, s);
537
538 piix4_pm_add_propeties(s);
539}
540
541Object *piix4_pm_find(void)
542{
543 bool ambig;
544 Object *o = object_resolve_path_type("", TYPE_PIIX4_PM, &ambig);
545
546 if (ambig || !o) {
547 return NULL;
548 }
549 return o;
550}
551
552I2CBus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base,
553 qemu_irq sci_irq, qemu_irq smi_irq,
554 int smm_enabled, DeviceState **piix4_pm)
555{
556 DeviceState *dev;
557 PIIX4PMState *s;
558
559 dev = DEVICE(pci_create(bus, devfn, TYPE_PIIX4_PM));
560 qdev_prop_set_uint32(dev, "smb_io_base", smb_io_base);
561 if (piix4_pm) {
562 *piix4_pm = dev;
563 }
564
565 s = PIIX4_PM(dev);
566 s->irq = sci_irq;
567 s->smi_irq = smi_irq;
568 s->smm_enabled = smm_enabled;
569 if (xen_enabled()) {
570 s->use_acpi_pci_hotplug = false;
571 }
572
573 qdev_init_nofail(dev);
574
575 return s->smb.smbus;
576}
577
578static uint64_t gpe_readb(void *opaque, hwaddr addr, unsigned width)
579{
580 PIIX4PMState *s = opaque;
581 uint32_t val = acpi_gpe_ioport_readb(&s->ar, addr);
582
583 PIIX4_DPRINTF("gpe read %" HWADDR_PRIx " == %" PRIu32 "\n", addr, val);
584 return val;
585}
586
587static void gpe_writeb(void *opaque, hwaddr addr, uint64_t val,
588 unsigned width)
589{
590 PIIX4PMState *s = opaque;
591
592 acpi_gpe_ioport_writeb(&s->ar, addr, val);
593 acpi_update_sci(&s->ar, s->irq);
594
595 PIIX4_DPRINTF("gpe write %" HWADDR_PRIx " <== %" PRIu64 "\n", addr, val);
596}
597
598static const MemoryRegionOps piix4_gpe_ops = {
599 .read = gpe_readb,
600 .write = gpe_writeb,
601 .valid.min_access_size = 1,
602 .valid.max_access_size = 4,
603 .impl.min_access_size = 1,
604 .impl.max_access_size = 1,
605 .endianness = DEVICE_LITTLE_ENDIAN,
606};
607
608
609static bool piix4_get_cpu_hotplug_legacy(Object *obj, Error **errp)
610{
611 PIIX4PMState *s = PIIX4_PM(obj);
612
613 return s->cpu_hotplug_legacy;
614}
615
616static void piix4_set_cpu_hotplug_legacy(Object *obj, bool value, Error **errp)
617{
618 PIIX4PMState *s = PIIX4_PM(obj);
619
620 assert(!value);
621 if (s->cpu_hotplug_legacy && value == false) {
622 acpi_switch_to_modern_cphp(&s->gpe_cpu, &s->cpuhp_state,
623 PIIX4_CPU_HOTPLUG_IO_BASE);
624 }
625 s->cpu_hotplug_legacy = value;
626}
627
628static void piix4_acpi_system_hot_add_init(MemoryRegion *parent,
629 PCIBus *bus, PIIX4PMState *s)
630{
631 memory_region_init_io(&s->io_gpe, OBJECT(s), &piix4_gpe_ops, s,
632 "acpi-gpe0", GPE_LEN);
633 memory_region_add_subregion(parent, GPE_BASE, &s->io_gpe);
634
635 acpi_pcihp_init(OBJECT(s), &s->acpi_pci_hotplug, bus, parent,
636 s->use_acpi_pci_hotplug);
637
638 s->cpu_hotplug_legacy = true;
639 object_property_add_bool(OBJECT(s), "cpu-hotplug-legacy",
640 piix4_get_cpu_hotplug_legacy,
641 piix4_set_cpu_hotplug_legacy,
642 NULL);
643 legacy_acpi_cpu_hotplug_init(parent, OBJECT(s), &s->gpe_cpu,
644 PIIX4_CPU_HOTPLUG_IO_BASE);
645
646 if (s->acpi_memory_hotplug.is_enabled) {
647 acpi_memory_hotplug_init(parent, OBJECT(s), &s->acpi_memory_hotplug);
648 }
649}
650
651static void piix4_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list)
652{
653 PIIX4PMState *s = PIIX4_PM(adev);
654
655 acpi_memory_ospm_status(&s->acpi_memory_hotplug, list);
656 if (!s->cpu_hotplug_legacy) {
657 acpi_cpu_ospm_status(&s->cpuhp_state, list);
658 }
659}
660
661static void piix4_send_gpe(AcpiDeviceIf *adev, AcpiEventStatusBits ev)
662{
663 PIIX4PMState *s = PIIX4_PM(adev);
664
665 acpi_send_gpe_event(&s->ar, s->irq, ev);
666}
667
668static Property piix4_pm_properties[] = {
669 DEFINE_PROP_UINT32("smb_io_base", PIIX4PMState, smb_io_base, 0),
670 DEFINE_PROP_UINT8(ACPI_PM_PROP_S3_DISABLED, PIIX4PMState, disable_s3, 0),
671 DEFINE_PROP_UINT8(ACPI_PM_PROP_S4_DISABLED, PIIX4PMState, disable_s4, 0),
672 DEFINE_PROP_UINT8(ACPI_PM_PROP_S4_VAL, PIIX4PMState, s4_val, 2),
673 DEFINE_PROP_BOOL("acpi-pci-hotplug-with-bridge-support", PIIX4PMState,
674 use_acpi_pci_hotplug, true),
675 DEFINE_PROP_BOOL("memory-hotplug-support", PIIX4PMState,
676 acpi_memory_hotplug.is_enabled, true),
677 DEFINE_PROP_END_OF_LIST(),
678};
679
680static void piix4_pm_class_init(ObjectClass *klass, void *data)
681{
682 DeviceClass *dc = DEVICE_CLASS(klass);
683 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
684 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass);
685 AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_CLASS(klass);
686
687 k->realize = piix4_pm_realize;
688 k->config_write = pm_write_config;
689 k->vendor_id = PCI_VENDOR_ID_INTEL;
690 k->device_id = PCI_DEVICE_ID_INTEL_82371AB_3;
691 k->revision = 0x03;
692 k->class_id = PCI_CLASS_BRIDGE_OTHER;
693 dc->desc = "PM";
694 dc->vmsd = &vmstate_acpi;
695 dc->props = piix4_pm_properties;
696
697
698
699
700 dc->cannot_instantiate_with_device_add_yet = true;
701 dc->hotpluggable = false;
702 hc->plug = piix4_device_plug_cb;
703 hc->unplug_request = piix4_device_unplug_request_cb;
704 hc->unplug = piix4_device_unplug_cb;
705 adevc->ospm_status = piix4_ospm_status;
706 adevc->send_event = piix4_send_gpe;
707 adevc->madt_cpu = pc_madt_cpu_entry;
708}
709
710static const TypeInfo piix4_pm_info = {
711 .name = TYPE_PIIX4_PM,
712 .parent = TYPE_PCI_DEVICE,
713 .instance_size = sizeof(PIIX4PMState),
714 .class_init = piix4_pm_class_init,
715 .interfaces = (InterfaceInfo[]) {
716 { TYPE_HOTPLUG_HANDLER },
717 { TYPE_ACPI_DEVICE_IF },
718 { }
719 }
720};
721
722static void piix4_pm_register_types(void)
723{
724 type_register_static(&piix4_pm_info);
725}
726
727type_init(piix4_pm_register_types)
728
