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acpi:ich9: convert cpu hotplug to hotplug_handler API
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CommitLineData
93d89f63
IY
1/*
2 * ACPI implementation
3 *
4 * Copyright (c) 2006 Fabrice Bellard
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License version 2 as published by the Free Software Foundation.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, see <http://www.gnu.org/licenses/>
6b620ca3
PB
17 *
18 * Contributions after 2012-01-13 are licensed under the terms of the
19 * GNU GPL, version 2 or (at your option) any later version.
93d89f63 20 */
83c9f4ca 21#include "hw/hw.h"
0d09e41a
PB
22#include "hw/i386/pc.h"
23#include "hw/isa/apm.h"
24#include "hw/i2c/pm_smbus.h"
83c9f4ca 25#include "hw/pci/pci.h"
0d09e41a 26#include "hw/acpi/acpi.h"
9c17d615 27#include "sysemu/sysemu.h"
1de7afc9 28#include "qemu/range.h"
022c62cb 29#include "exec/ioport.h"
0d09e41a 30#include "hw/nvram/fw_cfg.h"
022c62cb 31#include "exec/address-spaces.h"
277e9340 32#include "hw/acpi/piix4.h"
9e047b98 33#include "hw/acpi/pcihp.h"
81cea5e7 34#include "hw/acpi/cpu_hotplug.h"
c24d5e0b 35#include "hw/hotplug.h"
34774320
IM
36#include "hw/mem/pc-dimm.h"
37#include "hw/acpi/memory_hotplug.h"
43f50410 38#include "hw/acpi/acpi_dev_interface.h"
93d89f63
IY
39
40//#define DEBUG
41
50d8ff8b
IY
42#ifdef DEBUG
43# define PIIX4_DPRINTF(format, ...) printf(format, ## __VA_ARGS__)
44#else
45# define PIIX4_DPRINTF(format, ...) do { } while (0)
46#endif
47
ac404095 48#define GPE_BASE 0xafe0
23910d3f 49#define GPE_LEN 4
c177684c 50
ac404095 51struct pci_status {
7faa8075 52 uint32_t up; /* deprecated, maintained for migration compatibility */
ac404095
IY
53 uint32_t down;
54};
55
93d89f63 56typedef struct PIIX4PMState {
6a6b5580
AF
57 /*< private >*/
58 PCIDevice parent_obj;
59 /*< public >*/
56e5b2a1 60
af11110b 61 MemoryRegion io;
277e9340
MT
62 uint32_t io_base;
63
b65b93f2 64 MemoryRegion io_gpe;
355bf2e5 65 ACPIREGS ar;
93d89f63
IY
66
67 APMState apm;
68
93d89f63 69 PMSMBus smb;
e8ec0571 70 uint32_t smb_io_base;
93d89f63
IY
71
72 qemu_irq irq;
93d89f63
IY
73 qemu_irq smi_irq;
74 int kvm_enabled;
6141dbfe 75 Notifier machine_ready;
d010f91c 76 Notifier powerdown_notifier;
ac404095 77
9e047b98
MT
78 AcpiPciHpState acpi_pci_hotplug;
79 bool use_acpi_pci_hotplug;
80
459ae5ea
GN
81 uint8_t disable_s3;
82 uint8_t disable_s4;
83 uint8_t s4_val;
b8622725 84
81cea5e7 85 AcpiCpuHotplug gpe_cpu;
b8622725 86 Notifier cpu_added_notifier;
34774320
IM
87
88 MemHotplugState acpi_memory_hotplug;
93d89f63
IY
89} PIIX4PMState;
90
74e445f6
PC
91#define TYPE_PIIX4_PM "PIIX4_PM"
92
93#define PIIX4_PM(obj) \
94 OBJECT_CHECK(PIIX4PMState, (obj), TYPE_PIIX4_PM)
95
56e5b2a1
GH
96static void piix4_acpi_system_hot_add_init(MemoryRegion *parent,
97 PCIBus *bus, PIIX4PMState *s);
ac404095 98
93d89f63
IY
99#define ACPI_ENABLE 0xf1
100#define ACPI_DISABLE 0xf0
101
355bf2e5 102static void pm_tmr_timer(ACPIREGS *ar)
93d89f63 103{
355bf2e5 104 PIIX4PMState *s = container_of(ar, PIIX4PMState, ar);
06313503 105 acpi_update_sci(&s->ar, s->irq);
93d89f63
IY
106}
107
93d89f63
IY
108static void apm_ctrl_changed(uint32_t val, void *arg)
109{
110 PIIX4PMState *s = arg;
6a6b5580 111 PCIDevice *d = PCI_DEVICE(s);
93d89f63
IY
112
113 /* ACPI specs 3.0, 4.7.2.5 */
355bf2e5 114 acpi_pm1_cnt_update(&s->ar, val == ACPI_ENABLE, val == ACPI_DISABLE);
93d89f63 115
6a6b5580 116 if (d->config[0x5b] & (1 << 1)) {
93d89f63
IY
117 if (s->smi_irq) {
118 qemu_irq_raise(s->smi_irq);
119 }
120 }
121}
122
93d89f63
IY
123static void pm_io_space_update(PIIX4PMState *s)
124{
6a6b5580 125 PCIDevice *d = PCI_DEVICE(s);
93d89f63 126
277e9340
MT
127 s->io_base = le32_to_cpu(*(uint32_t *)(d->config + 0x40));
128 s->io_base &= 0xffc0;
93d89f63 129
af11110b 130 memory_region_transaction_begin();
6a6b5580 131 memory_region_set_enabled(&s->io, d->config[0x80] & 1);
277e9340 132 memory_region_set_address(&s->io, s->io_base);
af11110b 133 memory_region_transaction_commit();
93d89f63
IY
134}
135
24fe083d
GH
136static void smbus_io_space_update(PIIX4PMState *s)
137{
6a6b5580
AF
138 PCIDevice *d = PCI_DEVICE(s);
139
140 s->smb_io_base = le32_to_cpu(*(uint32_t *)(d->config + 0x90));
24fe083d
GH
141 s->smb_io_base &= 0xffc0;
142
143 memory_region_transaction_begin();
6a6b5580 144 memory_region_set_enabled(&s->smb.io, d->config[0xd2] & 1);
24fe083d
GH
145 memory_region_set_address(&s->smb.io, s->smb_io_base);
146 memory_region_transaction_commit();
93d89f63
IY
147}
148
149static void pm_write_config(PCIDevice *d,
150 uint32_t address, uint32_t val, int len)
151{
152 pci_default_write_config(d, address, val, len);
24fe083d
GH
153 if (range_covers_byte(address, len, 0x80) ||
154 ranges_overlap(address, len, 0x40, 4)) {
93d89f63 155 pm_io_space_update((PIIX4PMState *)d);
24fe083d
GH
156 }
157 if (range_covers_byte(address, len, 0xd2) ||
158 ranges_overlap(address, len, 0x90, 4)) {
159 smbus_io_space_update((PIIX4PMState *)d);
160 }
93d89f63
IY
161}
162
163static int vmstate_acpi_post_load(void *opaque, int version_id)
164{
165 PIIX4PMState *s = opaque;
166
167 pm_io_space_update(s);
168 return 0;
169}
170
23910d3f
IY
171#define VMSTATE_GPE_ARRAY(_field, _state) \
172 { \
173 .name = (stringify(_field)), \
174 .version_id = 0, \
23910d3f
IY
175 .info = &vmstate_info_uint16, \
176 .size = sizeof(uint16_t), \
b0b873a0 177 .flags = VMS_SINGLE | VMS_POINTER, \
23910d3f
IY
178 .offset = vmstate_offset_pointer(_state, _field, uint8_t), \
179 }
180
4cf3e6f3
AW
181static const VMStateDescription vmstate_gpe = {
182 .name = "gpe",
183 .version_id = 1,
184 .minimum_version_id = 1,
d49805ae 185 .fields = (VMStateField[]) {
23910d3f
IY
186 VMSTATE_GPE_ARRAY(sts, ACPIGPE),
187 VMSTATE_GPE_ARRAY(en, ACPIGPE),
4cf3e6f3
AW
188 VMSTATE_END_OF_LIST()
189 }
190};
191
192static const VMStateDescription vmstate_pci_status = {
193 .name = "pci_status",
194 .version_id = 1,
195 .minimum_version_id = 1,
d49805ae 196 .fields = (VMStateField[]) {
e358edc8
IM
197 VMSTATE_UINT32(up, struct AcpiPciHpPciStatus),
198 VMSTATE_UINT32(down, struct AcpiPciHpPciStatus),
4cf3e6f3
AW
199 VMSTATE_END_OF_LIST()
200 }
201};
202
b0b873a0
MT
203static int acpi_load_old(QEMUFile *f, void *opaque, int version_id)
204{
205 PIIX4PMState *s = opaque;
206 int ret, i;
207 uint16_t temp;
208
6a6b5580 209 ret = pci_device_load(PCI_DEVICE(s), f);
b0b873a0
MT
210 if (ret < 0) {
211 return ret;
212 }
213 qemu_get_be16s(f, &s->ar.pm1.evt.sts);
214 qemu_get_be16s(f, &s->ar.pm1.evt.en);
215 qemu_get_be16s(f, &s->ar.pm1.cnt.cnt);
216
ded67782 217 ret = vmstate_load_state(f, &vmstate_apm, &s->apm, 1);
b0b873a0
MT
218 if (ret) {
219 return ret;
220 }
221
40daca54 222 timer_get(f, s->ar.tmr.timer);
b0b873a0
MT
223 qemu_get_sbe64s(f, &s->ar.tmr.overflow_time);
224
225 qemu_get_be16s(f, (uint16_t *)s->ar.gpe.sts);
226 for (i = 0; i < 3; i++) {
227 qemu_get_be16s(f, &temp);
228 }
229
230 qemu_get_be16s(f, (uint16_t *)s->ar.gpe.en);
231 for (i = 0; i < 3; i++) {
232 qemu_get_be16s(f, &temp);
233 }
234
e358edc8
IM
235 ret = vmstate_load_state(f, &vmstate_pci_status,
236 &s->acpi_pci_hotplug.acpi_pcihp_pci_status[ACPI_PCIHP_BSEL_DEFAULT], 1);
b0b873a0
MT
237 return ret;
238}
239
9e047b98
MT
240static bool vmstate_test_use_acpi_pci_hotplug(void *opaque, int version_id)
241{
242 PIIX4PMState *s = opaque;
243 return s->use_acpi_pci_hotplug;
244}
245
246static bool vmstate_test_no_use_acpi_pci_hotplug(void *opaque, int version_id)
247{
248 PIIX4PMState *s = opaque;
249 return !s->use_acpi_pci_hotplug;
250}
251
f816a62d
IM
252static bool vmstate_test_use_memhp(void *opaque)
253{
254 PIIX4PMState *s = opaque;
255 return s->acpi_memory_hotplug.is_enabled;
256}
257
258static const VMStateDescription vmstate_memhp_state = {
259 .name = "piix4_pm/memhp",
260 .version_id = 1,
261 .minimum_version_id = 1,
262 .minimum_version_id_old = 1,
263 .fields = (VMStateField[]) {
264 VMSTATE_MEMORY_HOTPLUG(acpi_memory_hotplug, PIIX4PMState),
265 VMSTATE_END_OF_LIST()
266 }
267};
268
b0b873a0
MT
269/* qemu-kvm 1.2 uses version 3 but advertised as 2
270 * To support incoming qemu-kvm 1.2 migration, change version_id
271 * and minimum_version_id to 2 below (which breaks migration from
272 * qemu 1.2).
273 *
274 */
93d89f63
IY
275static const VMStateDescription vmstate_acpi = {
276 .name = "piix4_pm",
b0b873a0
MT
277 .version_id = 3,
278 .minimum_version_id = 3,
93d89f63 279 .minimum_version_id_old = 1,
b0b873a0 280 .load_state_old = acpi_load_old,
93d89f63 281 .post_load = vmstate_acpi_post_load,
d49805ae 282 .fields = (VMStateField[]) {
6a6b5580 283 VMSTATE_PCI_DEVICE(parent_obj, PIIX4PMState),
355bf2e5
GH
284 VMSTATE_UINT16(ar.pm1.evt.sts, PIIX4PMState),
285 VMSTATE_UINT16(ar.pm1.evt.en, PIIX4PMState),
286 VMSTATE_UINT16(ar.pm1.cnt.cnt, PIIX4PMState),
93d89f63 287 VMSTATE_STRUCT(apm, PIIX4PMState, 0, vmstate_apm, APMState),
355bf2e5
GH
288 VMSTATE_TIMER(ar.tmr.timer, PIIX4PMState),
289 VMSTATE_INT64(ar.tmr.overflow_time, PIIX4PMState),
290 VMSTATE_STRUCT(ar.gpe, PIIX4PMState, 2, vmstate_gpe, ACPIGPE),
e358edc8
IM
291 VMSTATE_STRUCT_TEST(
292 acpi_pci_hotplug.acpi_pcihp_pci_status[ACPI_PCIHP_BSEL_DEFAULT],
293 PIIX4PMState,
294 vmstate_test_no_use_acpi_pci_hotplug,
295 2, vmstate_pci_status,
296 struct AcpiPciHpPciStatus),
9e047b98
MT
297 VMSTATE_PCI_HOTPLUG(acpi_pci_hotplug, PIIX4PMState,
298 vmstate_test_use_acpi_pci_hotplug),
93d89f63 299 VMSTATE_END_OF_LIST()
f816a62d
IM
300 },
301 .subsections = (VMStateSubsection[]) {
302 {
303 .vmsd = &vmstate_memhp_state,
304 .needed = vmstate_test_use_memhp,
305 },
306 VMSTATE_END_OF_LIST()
93d89f63
IY
307 }
308};
309
310static void piix4_reset(void *opaque)
311{
312 PIIX4PMState *s = opaque;
6a6b5580
AF
313 PCIDevice *d = PCI_DEVICE(s);
314 uint8_t *pci_conf = d->config;
93d89f63
IY
315
316 pci_conf[0x58] = 0;
317 pci_conf[0x59] = 0;
318 pci_conf[0x5a] = 0;
319 pci_conf[0x5b] = 0;
320
4d09d37c
GN
321 pci_conf[0x40] = 0x01; /* PM io base read only bit */
322 pci_conf[0x80] = 0;
323
93d89f63
IY
324 if (s->kvm_enabled) {
325 /* Mark SMM as already inited (until KVM supports SMM). */
326 pci_conf[0x5B] = 0x02;
327 }
c046e8c4 328 pm_io_space_update(s);
e358edc8 329 acpi_pcihp_reset(&s->acpi_pci_hotplug);
93d89f63
IY
330}
331
d010f91c 332static void piix4_pm_powerdown_req(Notifier *n, void *opaque)
93d89f63 333{
d010f91c 334 PIIX4PMState *s = container_of(n, PIIX4PMState, powerdown_notifier);
93d89f63 335
355bf2e5
GH
336 assert(s != NULL);
337 acpi_pm1_evt_power_down(&s->ar);
93d89f63
IY
338}
339
f1adc360
IM
340static void piix4_device_plug_cb(HotplugHandler *hotplug_dev,
341 DeviceState *dev, Error **errp)
9e047b98 342{
c24d5e0b 343 PIIX4PMState *s = PIIX4_PM(hotplug_dev);
f1adc360 344
34774320
IM
345 if (s->acpi_memory_hotplug.is_enabled &&
346 object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
347 acpi_memory_plug_cb(&s->ar, s->irq, &s->acpi_memory_hotplug, dev, errp);
348 } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
f1adc360
IM
349 acpi_pcihp_device_plug_cb(&s->ar, s->irq, &s->acpi_pci_hotplug, dev,
350 errp);
351 } else {
352 error_setg(errp, "acpi: device plug request for not supported device"
353 " type: %s", object_get_typename(OBJECT(dev)));
354 }
c24d5e0b 355}
9e047b98 356
14d5a28f
IM
357static void piix4_device_unplug_request_cb(HotplugHandler *hotplug_dev,
358 DeviceState *dev, Error **errp)
c24d5e0b
IM
359{
360 PIIX4PMState *s = PIIX4_PM(hotplug_dev);
f1adc360
IM
361
362 if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
363 acpi_pcihp_device_unplug_cb(&s->ar, s->irq, &s->acpi_pci_hotplug, dev,
364 errp);
365 } else {
366 error_setg(errp, "acpi: device unplug request for not supported device"
367 " type: %s", object_get_typename(OBJECT(dev)));
368 }
9e047b98
MT
369}
370
c24d5e0b 371static void piix4_update_bus_hotplug(PCIBus *pci_bus, void *opaque)
9e047b98
MT
372{
373 PIIX4PMState *s = opaque;
c24d5e0b
IM
374
375 qbus_set_hotplug_handler(BUS(pci_bus), DEVICE(s), &error_abort);
9e047b98
MT
376}
377
9e8dd451 378static void piix4_pm_machine_ready(Notifier *n, void *opaque)
6141dbfe
PB
379{
380 PIIX4PMState *s = container_of(n, PIIX4PMState, machine_ready);
6a6b5580
AF
381 PCIDevice *d = PCI_DEVICE(s);
382 MemoryRegion *io_as = pci_address_space_io(d);
6141dbfe
PB
383 uint8_t *pci_conf;
384
6a6b5580 385 pci_conf = d->config;
b6f32962 386 pci_conf[0x5f] = 0x10 |
3ce10901 387 (memory_region_present(io_as, 0x378) ? 0x80 : 0);
6141dbfe 388 pci_conf[0x63] = 0x60;
3ce10901
PB
389 pci_conf[0x67] = (memory_region_present(io_as, 0x3f8) ? 0x08 : 0) |
390 (memory_region_present(io_as, 0x2f8) ? 0x90 : 0);
9e047b98
MT
391
392 if (s->use_acpi_pci_hotplug) {
393 pci_for_each_bus(d->bus, piix4_update_bus_hotplug, s);
e358edc8
IM
394 } else {
395 piix4_update_bus_hotplug(d->bus, s);
9e047b98 396 }
6141dbfe
PB
397}
398
277e9340
MT
399static void piix4_pm_add_propeties(PIIX4PMState *s)
400{
401 static const uint8_t acpi_enable_cmd = ACPI_ENABLE;
402 static const uint8_t acpi_disable_cmd = ACPI_DISABLE;
403 static const uint32_t gpe0_blk = GPE_BASE;
404 static const uint32_t gpe0_blk_len = GPE_LEN;
405 static const uint16_t sci_int = 9;
406
407 object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_ENABLE_CMD,
408 &acpi_enable_cmd, NULL);
409 object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_DISABLE_CMD,
410 &acpi_disable_cmd, NULL);
411 object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK,
412 &gpe0_blk, NULL);
413 object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK_LEN,
414 &gpe0_blk_len, NULL);
415 object_property_add_uint16_ptr(OBJECT(s), ACPI_PM_PROP_SCI_INT,
416 &sci_int, NULL);
417 object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_PM_IO_BASE,
418 &s->io_base, NULL);
419}
420
e8ec0571 421static int piix4_pm_initfn(PCIDevice *dev)
93d89f63 422{
74e445f6 423 PIIX4PMState *s = PIIX4_PM(dev);
93d89f63
IY
424 uint8_t *pci_conf;
425
6a6b5580 426 pci_conf = dev->config;
93d89f63
IY
427 pci_conf[0x06] = 0x80;
428 pci_conf[0x07] = 0x02;
93d89f63 429 pci_conf[0x09] = 0x00;
93d89f63
IY
430 pci_conf[0x3d] = 0x01; // interrupt pin 1
431
93d89f63 432 /* APM */
42d8a3cf 433 apm_init(dev, &s->apm, apm_ctrl_changed, s);
93d89f63 434
93d89f63
IY
435 if (s->kvm_enabled) {
436 /* Mark SMM as already inited to prevent SMM from running. KVM does not
437 * support SMM mode. */
438 pci_conf[0x5B] = 0x02;
439 }
440
441 /* XXX: which specification is used ? The i82731AB has different
442 mappings */
e8ec0571
IY
443 pci_conf[0x90] = s->smb_io_base | 1;
444 pci_conf[0x91] = s->smb_io_base >> 8;
93d89f63 445 pci_conf[0xd2] = 0x09;
74e445f6 446 pm_smbus_init(DEVICE(dev), &s->smb);
24fe083d 447 memory_region_set_enabled(&s->smb.io, pci_conf[0xd2] & 1);
56e5b2a1
GH
448 memory_region_add_subregion(pci_address_space_io(dev),
449 s->smb_io_base, &s->smb.io);
93d89f63 450
64bde0f3 451 memory_region_init(&s->io, OBJECT(s), "piix4-pm", 64);
af11110b 452 memory_region_set_enabled(&s->io, false);
56e5b2a1
GH
453 memory_region_add_subregion(pci_address_space_io(dev),
454 0, &s->io);
93d89f63 455
77d58b1e 456 acpi_pm_tmr_init(&s->ar, pm_tmr_timer, &s->io);
b5a7c024 457 acpi_pm1_evt_init(&s->ar, pm_tmr_timer, &s->io);
560e6396 458 acpi_pm1_cnt_init(&s->ar, &s->io, s->s4_val);
355bf2e5 459 acpi_gpe_init(&s->ar, GPE_LEN);
93d89f63 460
d010f91c
IM
461 s->powerdown_notifier.notify = piix4_pm_powerdown_req;
462 qemu_register_powerdown_notifier(&s->powerdown_notifier);
93d89f63 463
6141dbfe
PB
464 s->machine_ready.notify = piix4_pm_machine_ready;
465 qemu_add_machine_init_done_notifier(&s->machine_ready);
e8ec0571 466 qemu_register_reset(piix4_reset, s);
56e5b2a1
GH
467
468 piix4_acpi_system_hot_add_init(pci_address_space_io(dev), dev->bus, s);
e8ec0571 469
277e9340 470 piix4_pm_add_propeties(s);
e8ec0571
IY
471 return 0;
472}
473
277e9340
MT
474Object *piix4_pm_find(void)
475{
476 bool ambig;
477 Object *o = object_resolve_path_type("", TYPE_PIIX4_PM, &ambig);
478
479 if (ambig || !o) {
480 return NULL;
481 }
482 return o;
483}
484
a5c82852
AF
485I2CBus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base,
486 qemu_irq sci_irq, qemu_irq smi_irq,
781bbd6b
IM
487 int kvm_enabled, FWCfgState *fw_cfg,
488 DeviceState **piix4_pm)
e8ec0571 489{
74e445f6 490 DeviceState *dev;
e8ec0571
IY
491 PIIX4PMState *s;
492
74e445f6
PC
493 dev = DEVICE(pci_create(bus, devfn, TYPE_PIIX4_PM));
494 qdev_prop_set_uint32(dev, "smb_io_base", smb_io_base);
781bbd6b
IM
495 if (piix4_pm) {
496 *piix4_pm = dev;
497 }
93d89f63 498
74e445f6 499 s = PIIX4_PM(dev);
93d89f63 500 s->irq = sci_irq;
93d89f63 501 s->smi_irq = smi_irq;
e8ec0571
IY
502 s->kvm_enabled = kvm_enabled;
503
74e445f6 504 qdev_init_nofail(dev);
93d89f63 505
459ae5ea
GN
506 if (fw_cfg) {
507 uint8_t suspend[6] = {128, 0, 0, 129, 128, 128};
508 suspend[3] = 1 | ((!s->disable_s3) << 7);
509 suspend[4] = s->s4_val | ((!s->disable_s4) << 7);
510
511 fw_cfg_add_file(fw_cfg, "etc/system-states", g_memdup(suspend, 6), 6);
512 }
513
93d89f63
IY
514 return s->smb.smbus;
515}
516
b65b93f2 517static uint64_t gpe_readb(void *opaque, hwaddr addr, unsigned width)
93d89f63 518{
633aa0ac 519 PIIX4PMState *s = opaque;
355bf2e5 520 uint32_t val = acpi_gpe_ioport_readb(&s->ar, addr);
93d89f63 521
ba275adb 522 PIIX4_DPRINTF("gpe read %" HWADDR_PRIx " == %" PRIu32 "\n", addr, val);
93d89f63
IY
523 return val;
524}
525
b65b93f2
GH
526static void gpe_writeb(void *opaque, hwaddr addr, uint64_t val,
527 unsigned width)
93d89f63 528{
633aa0ac 529 PIIX4PMState *s = opaque;
633aa0ac 530
355bf2e5 531 acpi_gpe_ioport_writeb(&s->ar, addr, val);
06313503 532 acpi_update_sci(&s->ar, s->irq);
93d89f63 533
ba275adb 534 PIIX4_DPRINTF("gpe write %" HWADDR_PRIx " <== %" PRIu64 "\n", addr, val);
93d89f63
IY
535}
536
b65b93f2
GH
537static const MemoryRegionOps piix4_gpe_ops = {
538 .read = gpe_readb,
539 .write = gpe_writeb,
540 .valid.min_access_size = 1,
541 .valid.max_access_size = 4,
542 .impl.min_access_size = 1,
543 .impl.max_access_size = 1,
544 .endianness = DEVICE_LITTLE_ENDIAN,
545};
546
b8622725
IM
547static void piix4_cpu_added_req(Notifier *n, void *opaque)
548{
549 PIIX4PMState *s = container_of(n, PIIX4PMState, cpu_added_notifier);
550
81cea5e7
IM
551 assert(s != NULL);
552 AcpiCpuHotplug_add(&s->ar.gpe, &s->gpe_cpu, CPU(opaque));
553 acpi_update_sci(&s->ar, s->irq);
b8622725
IM
554}
555
56e5b2a1
GH
556static void piix4_acpi_system_hot_add_init(MemoryRegion *parent,
557 PCIBus *bus, PIIX4PMState *s)
93d89f63 558{
64bde0f3
PB
559 memory_region_init_io(&s->io_gpe, OBJECT(s), &piix4_gpe_ops, s,
560 "acpi-gpe0", GPE_LEN);
56e5b2a1 561 memory_region_add_subregion(parent, GPE_BASE, &s->io_gpe);
ac404095 562
e358edc8
IM
563 acpi_pcihp_init(&s->acpi_pci_hotplug, bus, parent,
564 s->use_acpi_pci_hotplug);
b8622725 565
e4cf8ed0
IM
566 AcpiCpuHotplug_init(parent, OBJECT(s), &s->gpe_cpu,
567 PIIX4_CPU_HOTPLUG_IO_BASE);
b8622725
IM
568 s->cpu_added_notifier.notify = piix4_cpu_added_req;
569 qemu_register_cpu_added_notifier(&s->cpu_added_notifier);
34774320
IM
570
571 if (s->acpi_memory_hotplug.is_enabled) {
572 acpi_memory_hotplug_init(parent, OBJECT(s), &s->acpi_memory_hotplug);
573 }
93d89f63 574}
5fdae20c 575
43f50410
IM
576static void piix4_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list)
577{
578 PIIX4PMState *s = PIIX4_PM(adev);
579
580 acpi_memory_ospm_status(&s->acpi_memory_hotplug, list);
581}
582
5fdae20c
IM
583static Property piix4_pm_properties[] = {
584 DEFINE_PROP_UINT32("smb_io_base", PIIX4PMState, smb_io_base, 0),
585 DEFINE_PROP_UINT8(ACPI_PM_PROP_S3_DISABLED, PIIX4PMState, disable_s3, 0),
586 DEFINE_PROP_UINT8(ACPI_PM_PROP_S4_DISABLED, PIIX4PMState, disable_s4, 0),
587 DEFINE_PROP_UINT8(ACPI_PM_PROP_S4_VAL, PIIX4PMState, s4_val, 2),
588 DEFINE_PROP_BOOL("acpi-pci-hotplug-with-bridge-support", PIIX4PMState,
589 use_acpi_pci_hotplug, true),
34774320
IM
590 DEFINE_PROP_BOOL("memory-hotplug-support", PIIX4PMState,
591 acpi_memory_hotplug.is_enabled, true),
5fdae20c
IM
592 DEFINE_PROP_END_OF_LIST(),
593};
594
595static void piix4_pm_class_init(ObjectClass *klass, void *data)
596{
597 DeviceClass *dc = DEVICE_CLASS(klass);
598 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
c24d5e0b 599 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass);
43f50410 600 AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_CLASS(klass);
5fdae20c 601
5fdae20c
IM
602 k->init = piix4_pm_initfn;
603 k->config_write = pm_write_config;
604 k->vendor_id = PCI_VENDOR_ID_INTEL;
605 k->device_id = PCI_DEVICE_ID_INTEL_82371AB_3;
606 k->revision = 0x03;
607 k->class_id = PCI_CLASS_BRIDGE_OTHER;
608 dc->desc = "PM";
609 dc->vmsd = &vmstate_acpi;
610 dc->props = piix4_pm_properties;
611 /*
612 * Reason: part of PIIX4 southbridge, needs to be wired up,
613 * e.g. by mips_malta_init()
614 */
615 dc->cannot_instantiate_with_device_add_yet = true;
2897ae02 616 dc->hotpluggable = false;
f1adc360 617 hc->plug = piix4_device_plug_cb;
14d5a28f 618 hc->unplug_request = piix4_device_unplug_request_cb;
43f50410 619 adevc->ospm_status = piix4_ospm_status;
5fdae20c
IM
620}
621
622static const TypeInfo piix4_pm_info = {
623 .name = TYPE_PIIX4_PM,
624 .parent = TYPE_PCI_DEVICE,
625 .instance_size = sizeof(PIIX4PMState),
626 .class_init = piix4_pm_class_init,
c24d5e0b
IM
627 .interfaces = (InterfaceInfo[]) {
628 { TYPE_HOTPLUG_HANDLER },
43f50410 629 { TYPE_ACPI_DEVICE_IF },
c24d5e0b
IM
630 { }
631 }
5fdae20c
IM
632};
633
634static void piix4_pm_register_types(void)
635{
636 type_register_static(&piix4_pm_info);
637}
638
639type_init(piix4_pm_register_types)