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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 "hw/nvram/fw_cfg.h"
32#include "exec/address-spaces.h"
33#include "hw/acpi/piix4.h"
34#include "hw/acpi/pcihp.h"
35#include "hw/acpi/cpu_hotplug.h"
36#include "hw/acpi/cpu.h"
37#include "hw/hotplug.h"
38#include "hw/mem/pc-dimm.h"
39#include "hw/acpi/memory_hotplug.h"
40#include "hw/acpi/acpi_dev_interface.h"
41#include "hw/xen/xen.h"
42#include "qom/cpu.h"
43
44
45
46#ifdef DEBUG
47# define PIIX4_DPRINTF(format, ...) printf(format, ## __VA_ARGS__)
48#else
49# define PIIX4_DPRINTF(format, ...) do { } while (0)
50#endif
51
52#define GPE_BASE 0xafe0
53#define GPE_LEN 4
54
55struct pci_status {
56 uint32_t up;
57 uint32_t down;
58};
59
60typedef struct PIIX4PMState {
61
62 PCIDevice parent_obj;
63
64
65 MemoryRegion io;
66 uint32_t io_base;
67
68 MemoryRegion io_gpe;
69 ACPIREGS ar;
70
71 APMState apm;
72
73 PMSMBus smb;
74 uint32_t smb_io_base;
75
76 qemu_irq irq;
77 qemu_irq smi_irq;
78 int smm_enabled;
79 Notifier machine_ready;
80 Notifier powerdown_notifier;
81
82 AcpiPciHpState acpi_pci_hotplug;
83 bool use_acpi_pci_hotplug;
84
85 uint8_t disable_s3;
86 uint8_t disable_s4;
87 uint8_t s4_val;
88
89 bool cpu_hotplug_legacy;
90 AcpiCpuHotplug gpe_cpu;
91 CPUHotplugState cpuhp_state;
92
93 MemHotplugState acpi_memory_hotplug;
94} PIIX4PMState;
95
96#define TYPE_PIIX4_PM "PIIX4_PM"
97
98#define PIIX4_PM(obj) \
99 OBJECT_CHECK(PIIX4PMState, (obj), TYPE_PIIX4_PM)
100
101static void piix4_acpi_system_hot_add_init(MemoryRegion *parent,
102 PCIBus *bus, PIIX4PMState *s);
103
104#define ACPI_ENABLE 0xf1
105#define ACPI_DISABLE 0xf0
106
107static void pm_tmr_timer(ACPIREGS *ar)
108{
109 PIIX4PMState *s = container_of(ar, PIIX4PMState, ar);
110 acpi_update_sci(&s->ar, s->irq);
111}
112
113static void apm_ctrl_changed(uint32_t val, void *arg)
114{
115 PIIX4PMState *s = arg;
116 PCIDevice *d = PCI_DEVICE(s);
117
118
119 acpi_pm1_cnt_update(&s->ar, val == ACPI_ENABLE, val == ACPI_DISABLE);
120 if (val == ACPI_ENABLE || val == ACPI_DISABLE) {
121 return;
122 }
123
124 if (d->config[0x5b] & (1 << 1)) {
125 if (s->smi_irq) {
126 qemu_irq_raise(s->smi_irq);
127 }
128 }
129}
130
131static void pm_io_space_update(PIIX4PMState *s)
132{
133 PCIDevice *d = PCI_DEVICE(s);
134
135 s->io_base = le32_to_cpu(*(uint32_t *)(d->config + 0x40));
136 s->io_base &= 0xffc0;
137
138 memory_region_transaction_begin();
139 memory_region_set_enabled(&s->io, d->config[0x80] & 1);
140 memory_region_set_address(&s->io, s->io_base);
141 memory_region_transaction_commit();
142}
143
144static void smbus_io_space_update(PIIX4PMState *s)
145{
146 PCIDevice *d = PCI_DEVICE(s);
147
148 s->smb_io_base = le32_to_cpu(*(uint32_t *)(d->config + 0x90));
149 s->smb_io_base &= 0xffc0;
150
151 memory_region_transaction_begin();
152 memory_region_set_enabled(&s->smb.io, d->config[0xd2] & 1);
153 memory_region_set_address(&s->smb.io, s->smb_io_base);
154 memory_region_transaction_commit();
155}
156
157static void pm_write_config(PCIDevice *d,
158 uint32_t address, uint32_t val, int len)
159{
160 pci_default_write_config(d, address, val, len);
161 if (range_covers_byte(address, len, 0x80) ||
162 ranges_overlap(address, len, 0x40, 4)) {
163 pm_io_space_update((PIIX4PMState *)d);
164 }
165 if (range_covers_byte(address, len, 0xd2) ||
166 ranges_overlap(address, len, 0x90, 4)) {
167 smbus_io_space_update((PIIX4PMState *)d);
168 }
169}
170
171static int vmstate_acpi_post_load(void *opaque, int version_id)
172{
173 PIIX4PMState *s = opaque;
174
175 pm_io_space_update(s);
176 return 0;
177}
178
179#define VMSTATE_GPE_ARRAY(_field, _state) \
180 { \
181 .name = (stringify(_field)), \
182 .version_id = 0, \
183 .info = &vmstate_info_uint16, \
184 .size = sizeof(uint16_t), \
185 .flags = VMS_SINGLE | VMS_POINTER, \
186 .offset = vmstate_offset_pointer(_state, _field, uint8_t), \
187 }
188
189static const VMStateDescription vmstate_gpe = {
190 .name = "gpe",
191 .version_id = 1,
192 .minimum_version_id = 1,
193 .fields = (VMStateField[]) {
194 VMSTATE_GPE_ARRAY(sts, ACPIGPE),
195 VMSTATE_GPE_ARRAY(en, ACPIGPE),
196 VMSTATE_END_OF_LIST()
197 }
198};
199
200static const VMStateDescription vmstate_pci_status = {
201 .name = "pci_status",
202 .version_id = 1,
203 .minimum_version_id = 1,
204 .fields = (VMStateField[]) {
205 VMSTATE_UINT32(up, struct AcpiPciHpPciStatus),
206 VMSTATE_UINT32(down, struct AcpiPciHpPciStatus),
207 VMSTATE_END_OF_LIST()
208 }
209};
210
211static int acpi_load_old(QEMUFile *f, void *opaque, int version_id)
212{
213 PIIX4PMState *s = opaque;
214 int ret, i;
215 uint16_t temp;
216
217 ret = pci_device_load(PCI_DEVICE(s), f);
218 if (ret < 0) {
219 return ret;
220 }
221 qemu_get_be16s(f, &s->ar.pm1.evt.sts);
222 qemu_get_be16s(f, &s->ar.pm1.evt.en);
223 qemu_get_be16s(f, &s->ar.pm1.cnt.cnt);
224
225 ret = vmstate_load_state(f, &vmstate_apm, &s->apm, 1);
226 if (ret) {
227 return ret;
228 }
229
230 timer_get(f, s->ar.tmr.timer);
231 qemu_get_sbe64s(f, &s->ar.tmr.overflow_time);
232
233 qemu_get_be16s(f, (uint16_t *)s->ar.gpe.sts);
234 for (i = 0; i < 3; i++) {
235 qemu_get_be16s(f, &temp);
236 }
237
238 qemu_get_be16s(f, (uint16_t *)s->ar.gpe.en);
239 for (i = 0; i < 3; i++) {
240 qemu_get_be16s(f, &temp);
241 }
242
243 ret = vmstate_load_state(f, &vmstate_pci_status,
244 &s->acpi_pci_hotplug.acpi_pcihp_pci_status[ACPI_PCIHP_BSEL_DEFAULT], 1);
245 return ret;
246}
247
248static bool vmstate_test_use_acpi_pci_hotplug(void *opaque, int version_id)
249{
250 PIIX4PMState *s = opaque;
251 return s->use_acpi_pci_hotplug;
252}
253
254static bool vmstate_test_no_use_acpi_pci_hotplug(void *opaque, int version_id)
255{
256 PIIX4PMState *s = opaque;
257 return !s->use_acpi_pci_hotplug;
258}
259
260static bool vmstate_test_use_memhp(void *opaque)
261{
262 PIIX4PMState *s = opaque;
263 return s->acpi_memory_hotplug.is_enabled;
264}
265
266static const VMStateDescription vmstate_memhp_state = {
267 .name = "piix4_pm/memhp",
268 .version_id = 1,
269 .minimum_version_id = 1,
270 .minimum_version_id_old = 1,
271 .needed = vmstate_test_use_memhp,
272 .fields = (VMStateField[]) {
273 VMSTATE_MEMORY_HOTPLUG(acpi_memory_hotplug, PIIX4PMState),
274 VMSTATE_END_OF_LIST()
275 }
276};
277
278static bool vmstate_test_use_cpuhp(void *opaque)
279{
280 PIIX4PMState *s = opaque;
281 return !s->cpu_hotplug_legacy;
282}
283
284static int vmstate_cpuhp_pre_load(void *opaque)
285{
286 Object *obj = OBJECT(opaque);
287 object_property_set_bool(obj, false, "cpu-hotplug-legacy", &error_abort);
288 return 0;
289}
290
291static const VMStateDescription vmstate_cpuhp_state = {
292 .name = "piix4_pm/cpuhp",
293 .version_id = 1,
294 .minimum_version_id = 1,
295 .minimum_version_id_old = 1,
296 .needed = vmstate_test_use_cpuhp,
297 .pre_load = vmstate_cpuhp_pre_load,
298 .fields = (VMStateField[]) {
299 VMSTATE_CPU_HOTPLUG(cpuhp_state, PIIX4PMState),
300 VMSTATE_END_OF_LIST()
301 }
302};
303
304
305
306
307
308
309
310static const VMStateDescription vmstate_acpi = {
311 .name = "piix4_pm",
312 .version_id = 3,
313 .minimum_version_id = 3,
314 .minimum_version_id_old = 1,
315 .load_state_old = acpi_load_old,
316 .post_load = vmstate_acpi_post_load,
317 .fields = (VMStateField[]) {
318 VMSTATE_PCI_DEVICE(parent_obj, PIIX4PMState),
319 VMSTATE_UINT16(ar.pm1.evt.sts, PIIX4PMState),
320 VMSTATE_UINT16(ar.pm1.evt.en, PIIX4PMState),
321 VMSTATE_UINT16(ar.pm1.cnt.cnt, PIIX4PMState),
322 VMSTATE_STRUCT(apm, PIIX4PMState, 0, vmstate_apm, APMState),
323 VMSTATE_TIMER_PTR(ar.tmr.timer, PIIX4PMState),
324 VMSTATE_INT64(ar.tmr.overflow_time, PIIX4PMState),
325 VMSTATE_STRUCT(ar.gpe, PIIX4PMState, 2, vmstate_gpe, ACPIGPE),
326 VMSTATE_STRUCT_TEST(
327 acpi_pci_hotplug.acpi_pcihp_pci_status[ACPI_PCIHP_BSEL_DEFAULT],
328 PIIX4PMState,
329 vmstate_test_no_use_acpi_pci_hotplug,
330 2, vmstate_pci_status,
331 struct AcpiPciHpPciStatus),
332 VMSTATE_PCI_HOTPLUG(acpi_pci_hotplug, PIIX4PMState,
333 vmstate_test_use_acpi_pci_hotplug),
334 VMSTATE_END_OF_LIST()
335 },
336 .subsections = (const VMStateDescription*[]) {
337 &vmstate_memhp_state,
338 &vmstate_cpuhp_state,
339 NULL
340 }
341};
342
343static void piix4_reset(void *opaque)
344{
345 PIIX4PMState *s = opaque;
346 PCIDevice *d = PCI_DEVICE(s);
347 uint8_t *pci_conf = d->config;
348
349 pci_conf[0x58] = 0;
350 pci_conf[0x59] = 0;
351 pci_conf[0x5a] = 0;
352 pci_conf[0x5b] = 0;
353
354 pci_conf[0x40] = 0x01;
355 pci_conf[0x80] = 0;
356
357 if (!s->smm_enabled) {
358
359 pci_conf[0x5B] = 0x02;
360 }
361 pm_io_space_update(s);
362 acpi_pcihp_reset(&s->acpi_pci_hotplug);
363}
364
365static void piix4_pm_powerdown_req(Notifier *n, void *opaque)
366{
367 PIIX4PMState *s = container_of(n, PIIX4PMState, powerdown_notifier);
368
369 assert(s != NULL);
370 acpi_pm1_evt_power_down(&s->ar);
371}
372
373static void piix4_device_plug_cb(HotplugHandler *hotplug_dev,
374 DeviceState *dev, Error **errp)
375{
376 PIIX4PMState *s = PIIX4_PM(hotplug_dev);
377
378 if (s->acpi_memory_hotplug.is_enabled &&
379 object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
380 if (object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)) {
381 nvdimm_acpi_plug_cb(hotplug_dev, dev);
382 } else {
383 acpi_memory_plug_cb(hotplug_dev, &s->acpi_memory_hotplug,
384 dev, errp);
385 }
386 } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
387 acpi_pcihp_device_plug_cb(hotplug_dev, &s->acpi_pci_hotplug, dev, errp);
388 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
389 if (s->cpu_hotplug_legacy) {
390 legacy_acpi_cpu_plug_cb(hotplug_dev, &s->gpe_cpu, dev, errp);
391 } else {
392 acpi_cpu_plug_cb(hotplug_dev, &s->cpuhp_state, dev, errp);
393 }
394 } else {
395 error_setg(errp, "acpi: device plug request for not supported device"
396 " type: %s", object_get_typename(OBJECT(dev)));
397 }
398}
399
400static void piix4_device_unplug_request_cb(HotplugHandler *hotplug_dev,
401 DeviceState *dev, Error **errp)
402{
403 PIIX4PMState *s = PIIX4_PM(hotplug_dev);
404
405 if (s->acpi_memory_hotplug.is_enabled &&
406 object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
407 acpi_memory_unplug_request_cb(hotplug_dev, &s->acpi_memory_hotplug,
408 dev, errp);
409 } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
410 acpi_pcihp_device_unplug_cb(hotplug_dev, &s->acpi_pci_hotplug, dev,
411 errp);
412 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU) &&
413 !s->cpu_hotplug_legacy) {
414 acpi_cpu_unplug_request_cb(hotplug_dev, &s->cpuhp_state, dev, errp);
415 } else {
416 error_setg(errp, "acpi: device unplug request for not supported device"
417 " type: %s", object_get_typename(OBJECT(dev)));
418 }
419}
420
421static void piix4_device_unplug_cb(HotplugHandler *hotplug_dev,
422 DeviceState *dev, Error **errp)
423{
424 PIIX4PMState *s = PIIX4_PM(hotplug_dev);
425
426 if (s->acpi_memory_hotplug.is_enabled &&
427 object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
428 acpi_memory_unplug_cb(&s->acpi_memory_hotplug, dev, errp);
429 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU) &&
430 !s->cpu_hotplug_legacy) {
431 acpi_cpu_unplug_cb(&s->cpuhp_state, dev, errp);
432 } else {
433 error_setg(errp, "acpi: device unplug for not supported device"
434 " type: %s", object_get_typename(OBJECT(dev)));
435 }
436}
437
438static void piix4_update_bus_hotplug(PCIBus *pci_bus, void *opaque)
439{
440 PIIX4PMState *s = opaque;
441
442
443
444 qbus_set_hotplug_handler(BUS(pci_bus), DEVICE(s), &error_abort);
445}
446
447static void piix4_pm_machine_ready(Notifier *n, void *opaque)
448{
449 PIIX4PMState *s = container_of(n, PIIX4PMState, machine_ready);
450 PCIDevice *d = PCI_DEVICE(s);
451 MemoryRegion *io_as = pci_address_space_io(d);
452 uint8_t *pci_conf;
453
454 pci_conf = d->config;
455 pci_conf[0x5f] = 0x10 |
456 (memory_region_present(io_as, 0x378) ? 0x80 : 0);
457 pci_conf[0x63] = 0x60;
458 pci_conf[0x67] = (memory_region_present(io_as, 0x3f8) ? 0x08 : 0) |
459 (memory_region_present(io_as, 0x2f8) ? 0x90 : 0);
460
461 if (s->use_acpi_pci_hotplug) {
462 pci_for_each_bus(pci_get_bus(d), piix4_update_bus_hotplug, s);
463 } else {
464 piix4_update_bus_hotplug(pci_get_bus(d), s);
465 }
466}
467
468static void piix4_pm_add_propeties(PIIX4PMState *s)
469{
470 static const uint8_t acpi_enable_cmd = ACPI_ENABLE;
471 static const uint8_t acpi_disable_cmd = ACPI_DISABLE;
472 static const uint32_t gpe0_blk = GPE_BASE;
473 static const uint32_t gpe0_blk_len = GPE_LEN;
474 static const uint16_t sci_int = 9;
475
476 object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_ENABLE_CMD,
477 &acpi_enable_cmd, NULL);
478 object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_DISABLE_CMD,
479 &acpi_disable_cmd, NULL);
480 object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK,
481 &gpe0_blk, NULL);
482 object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK_LEN,
483 &gpe0_blk_len, NULL);
484 object_property_add_uint16_ptr(OBJECT(s), ACPI_PM_PROP_SCI_INT,
485 &sci_int, NULL);
486 object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_PM_IO_BASE,
487 &s->io_base, NULL);
488}
489
490static void piix4_pm_realize(PCIDevice *dev, Error **errp)
491{
492 PIIX4PMState *s = PIIX4_PM(dev);
493 uint8_t *pci_conf;
494
495 pci_conf = dev->config;
496 pci_conf[0x06] = 0x80;
497 pci_conf[0x07] = 0x02;
498 pci_conf[0x09] = 0x00;
499 pci_conf[0x3d] = 0x01;
500
501
502 apm_init(dev, &s->apm, apm_ctrl_changed, s);
503
504 if (!s->smm_enabled) {
505
506
507 pci_conf[0x5B] = 0x02;
508 }
509
510
511
512 pci_conf[0x90] = s->smb_io_base | 1;
513 pci_conf[0x91] = s->smb_io_base >> 8;
514 pci_conf[0xd2] = 0x09;
515 pm_smbus_init(DEVICE(dev), &s->smb);
516 memory_region_set_enabled(&s->smb.io, pci_conf[0xd2] & 1);
517 memory_region_add_subregion(pci_address_space_io(dev),
518 s->smb_io_base, &s->smb.io);
519
520 memory_region_init(&s->io, OBJECT(s), "piix4-pm", 64);
521 memory_region_set_enabled(&s->io, false);
522 memory_region_add_subregion(pci_address_space_io(dev),
523 0, &s->io);
524
525 acpi_pm_tmr_init(&s->ar, pm_tmr_timer, &s->io);
526 acpi_pm1_evt_init(&s->ar, pm_tmr_timer, &s->io);
527 acpi_pm1_cnt_init(&s->ar, &s->io, s->disable_s3, s->disable_s4, s->s4_val);
528 acpi_gpe_init(&s->ar, GPE_LEN);
529
530 s->powerdown_notifier.notify = piix4_pm_powerdown_req;
531 qemu_register_powerdown_notifier(&s->powerdown_notifier);
532
533 s->machine_ready.notify = piix4_pm_machine_ready;
534 qemu_add_machine_init_done_notifier(&s->machine_ready);
535 qemu_register_reset(piix4_reset, s);
536
537 piix4_acpi_system_hot_add_init(pci_address_space_io(dev),
538 pci_get_bus(dev), s);
539
540 piix4_pm_add_propeties(s);
541}
542
543Object *piix4_pm_find(void)
544{
545 bool ambig;
546 Object *o = object_resolve_path_type("", TYPE_PIIX4_PM, &ambig);
547
548 if (ambig || !o) {
549 return NULL;
550 }
551 return o;
552}
553
554I2CBus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base,
555 qemu_irq sci_irq, qemu_irq smi_irq,
556 int smm_enabled, DeviceState **piix4_pm)
557{
558 DeviceState *dev;
559 PIIX4PMState *s;
560
561 dev = DEVICE(pci_create(bus, devfn, TYPE_PIIX4_PM));
562 qdev_prop_set_uint32(dev, "smb_io_base", smb_io_base);
563 if (piix4_pm) {
564 *piix4_pm = dev;
565 }
566
567 s = PIIX4_PM(dev);
568 s->irq = sci_irq;
569 s->smi_irq = smi_irq;
570 s->smm_enabled = smm_enabled;
571 if (xen_enabled()) {
572 s->use_acpi_pci_hotplug = false;
573 }
574
575 qdev_init_nofail(dev);
576
577 return s->smb.smbus;
578}
579
580static uint64_t gpe_readb(void *opaque, hwaddr addr, unsigned width)
581{
582 PIIX4PMState *s = opaque;
583 uint32_t val = acpi_gpe_ioport_readb(&s->ar, addr);
584
585 PIIX4_DPRINTF("gpe read %" HWADDR_PRIx " == %" PRIu32 "\n", addr, val);
586 return val;
587}
588
589static void gpe_writeb(void *opaque, hwaddr addr, uint64_t val,
590 unsigned width)
591{
592 PIIX4PMState *s = opaque;
593
594 acpi_gpe_ioport_writeb(&s->ar, addr, val);
595 acpi_update_sci(&s->ar, s->irq);
596
597 PIIX4_DPRINTF("gpe write %" HWADDR_PRIx " <== %" PRIu64 "\n", addr, val);
598}
599
600static const MemoryRegionOps piix4_gpe_ops = {
601 .read = gpe_readb,
602 .write = gpe_writeb,
603 .valid.min_access_size = 1,
604 .valid.max_access_size = 4,
605 .impl.min_access_size = 1,
606 .impl.max_access_size = 1,
607 .endianness = DEVICE_LITTLE_ENDIAN,
608};
609
610
611static bool piix4_get_cpu_hotplug_legacy(Object *obj, Error **errp)
612{
613 PIIX4PMState *s = PIIX4_PM(obj);
614
615 return s->cpu_hotplug_legacy;
616}
617
618static void piix4_set_cpu_hotplug_legacy(Object *obj, bool value, Error **errp)
619{
620 PIIX4PMState *s = PIIX4_PM(obj);
621
622 assert(!value);
623 if (s->cpu_hotplug_legacy && value == false) {
624 acpi_switch_to_modern_cphp(&s->gpe_cpu, &s->cpuhp_state,
625 PIIX4_CPU_HOTPLUG_IO_BASE);
626 }
627 s->cpu_hotplug_legacy = value;
628}
629
630static void piix4_acpi_system_hot_add_init(MemoryRegion *parent,
631 PCIBus *bus, PIIX4PMState *s)
632{
633 memory_region_init_io(&s->io_gpe, OBJECT(s), &piix4_gpe_ops, s,
634 "acpi-gpe0", GPE_LEN);
635 memory_region_add_subregion(parent, GPE_BASE, &s->io_gpe);
636
637 acpi_pcihp_init(OBJECT(s), &s->acpi_pci_hotplug, bus, parent,
638 s->use_acpi_pci_hotplug);
639
640 s->cpu_hotplug_legacy = true;
641 object_property_add_bool(OBJECT(s), "cpu-hotplug-legacy",
642 piix4_get_cpu_hotplug_legacy,
643 piix4_set_cpu_hotplug_legacy,
644 NULL);
645 legacy_acpi_cpu_hotplug_init(parent, OBJECT(s), &s->gpe_cpu,
646 PIIX4_CPU_HOTPLUG_IO_BASE);
647
648 if (s->acpi_memory_hotplug.is_enabled) {
649 acpi_memory_hotplug_init(parent, OBJECT(s), &s->acpi_memory_hotplug,
650 ACPI_MEMORY_HOTPLUG_BASE);
651 }
652}
653
654static void piix4_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list)
655{
656 PIIX4PMState *s = PIIX4_PM(adev);
657
658 acpi_memory_ospm_status(&s->acpi_memory_hotplug, list);
659 if (!s->cpu_hotplug_legacy) {
660 acpi_cpu_ospm_status(&s->cpuhp_state, list);
661 }
662}
663
664static void piix4_send_gpe(AcpiDeviceIf *adev, AcpiEventStatusBits ev)
665{
666 PIIX4PMState *s = PIIX4_PM(adev);
667
668 acpi_send_gpe_event(&s->ar, s->irq, ev);
669}
670
671static Property piix4_pm_properties[] = {
672 DEFINE_PROP_UINT32("smb_io_base", PIIX4PMState, smb_io_base, 0),
673 DEFINE_PROP_UINT8(ACPI_PM_PROP_S3_DISABLED, PIIX4PMState, disable_s3, 0),
674 DEFINE_PROP_UINT8(ACPI_PM_PROP_S4_DISABLED, PIIX4PMState, disable_s4, 0),
675 DEFINE_PROP_UINT8(ACPI_PM_PROP_S4_VAL, PIIX4PMState, s4_val, 2),
676 DEFINE_PROP_BOOL("acpi-pci-hotplug-with-bridge-support", PIIX4PMState,
677 use_acpi_pci_hotplug, true),
678 DEFINE_PROP_BOOL("memory-hotplug-support", PIIX4PMState,
679 acpi_memory_hotplug.is_enabled, true),
680 DEFINE_PROP_END_OF_LIST(),
681};
682
683static void piix4_pm_class_init(ObjectClass *klass, void *data)
684{
685 DeviceClass *dc = DEVICE_CLASS(klass);
686 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
687 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass);
688 AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_CLASS(klass);
689
690 k->realize = piix4_pm_realize;
691 k->config_write = pm_write_config;
692 k->vendor_id = PCI_VENDOR_ID_INTEL;
693 k->device_id = PCI_DEVICE_ID_INTEL_82371AB_3;
694 k->revision = 0x03;
695 k->class_id = PCI_CLASS_BRIDGE_OTHER;
696 dc->desc = "PM";
697 dc->vmsd = &vmstate_acpi;
698 dc->props = piix4_pm_properties;
699
700
701
702
703 dc->user_creatable = false;
704 dc->hotpluggable = false;
705 hc->plug = piix4_device_plug_cb;
706 hc->unplug_request = piix4_device_unplug_request_cb;
707 hc->unplug = piix4_device_unplug_cb;
708 adevc->ospm_status = piix4_ospm_status;
709 adevc->send_event = piix4_send_gpe;
710 adevc->madt_cpu = pc_madt_cpu_entry;
711}
712
713static const TypeInfo piix4_pm_info = {
714 .name = TYPE_PIIX4_PM,
715 .parent = TYPE_PCI_DEVICE,
716 .instance_size = sizeof(PIIX4PMState),
717 .class_init = piix4_pm_class_init,
718 .interfaces = (InterfaceInfo[]) {
719 { TYPE_HOTPLUG_HANDLER },
720 { TYPE_ACPI_DEVICE_IF },
721 { INTERFACE_CONVENTIONAL_PCI_DEVICE },
722 { }
723 }
724};
725
726static void piix4_pm_register_types(void)
727{
728 type_register_static(&piix4_pm_info);
729}
730
731type_init(piix4_pm_register_types)
732
