Merge remote-tracking branch 'remotes/jsnow-gitlab/tags/python-pull-request' into...
[qemu.git] / hw / acpi / ich9.c
1 /*
2 * ACPI implementation
3 *
4 * Copyright (c) 2006 Fabrice Bellard
5 * Copyright (c) 2009 Isaku Yamahata <yamahata at valinux co jp>
6 * VA Linux Systems Japan K.K.
7 * Copyright (C) 2012 Jason Baron <jbaron@redhat.com>
8 *
9 * This is based on acpi.c.
10 *
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License version 2.1 as published by the Free Software Foundation.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, see <http://www.gnu.org/licenses/>
22 *
23 * Contributions after 2012-01-13 are licensed under the terms of the
24 * GNU GPL, version 2 or (at your option) any later version.
25 */
26
27 #include "qemu/osdep.h"
28 #include "qapi/error.h"
29 #include "qapi/visitor.h"
30 #include "hw/pci/pci.h"
31 #include "migration/vmstate.h"
32 #include "qemu/timer.h"
33 #include "hw/core/cpu.h"
34 #include "sysemu/reset.h"
35 #include "sysemu/runstate.h"
36 #include "hw/acpi/acpi.h"
37 #include "hw/acpi/tco.h"
38
39 #include "hw/i386/ich9.h"
40 #include "hw/mem/pc-dimm.h"
41 #include "hw/mem/nvdimm.h"
42
43 //#define DEBUG
44
45 #ifdef DEBUG
46 #define ICH9_DEBUG(fmt, ...) \
47 do { printf("%s "fmt, __func__, ## __VA_ARGS__); } while (0)
48 #else
49 #define ICH9_DEBUG(fmt, ...) do { } while (0)
50 #endif
51
52 static void ich9_pm_update_sci_fn(ACPIREGS *regs)
53 {
54 ICH9LPCPMRegs *pm = container_of(regs, ICH9LPCPMRegs, acpi_regs);
55 acpi_update_sci(&pm->acpi_regs, pm->irq);
56 }
57
58 static uint64_t ich9_gpe_readb(void *opaque, hwaddr addr, unsigned width)
59 {
60 ICH9LPCPMRegs *pm = opaque;
61 return acpi_gpe_ioport_readb(&pm->acpi_regs, addr);
62 }
63
64 static void ich9_gpe_writeb(void *opaque, hwaddr addr, uint64_t val,
65 unsigned width)
66 {
67 ICH9LPCPMRegs *pm = opaque;
68 acpi_gpe_ioport_writeb(&pm->acpi_regs, addr, val);
69 acpi_update_sci(&pm->acpi_regs, pm->irq);
70 }
71
72 static const MemoryRegionOps ich9_gpe_ops = {
73 .read = ich9_gpe_readb,
74 .write = ich9_gpe_writeb,
75 .valid.min_access_size = 1,
76 .valid.max_access_size = 4,
77 .impl.min_access_size = 1,
78 .impl.max_access_size = 1,
79 .endianness = DEVICE_LITTLE_ENDIAN,
80 };
81
82 static uint64_t ich9_smi_readl(void *opaque, hwaddr addr, unsigned width)
83 {
84 ICH9LPCPMRegs *pm = opaque;
85 switch (addr) {
86 case 0:
87 return pm->smi_en;
88 case 4:
89 return pm->smi_sts;
90 default:
91 return 0;
92 }
93 }
94
95 static void ich9_smi_writel(void *opaque, hwaddr addr, uint64_t val,
96 unsigned width)
97 {
98 ICH9LPCPMRegs *pm = opaque;
99 TCOIORegs *tr = &pm->tco_regs;
100 uint64_t tco_en;
101
102 switch (addr) {
103 case 0:
104 tco_en = pm->smi_en & ICH9_PMIO_SMI_EN_TCO_EN;
105 /* once TCO_LOCK bit is set, TCO_EN bit cannot be overwritten */
106 if (tr->tco.cnt1 & TCO_LOCK) {
107 val = (val & ~ICH9_PMIO_SMI_EN_TCO_EN) | tco_en;
108 }
109 pm->smi_en &= ~pm->smi_en_wmask;
110 pm->smi_en |= (val & pm->smi_en_wmask);
111 break;
112 }
113 }
114
115 static const MemoryRegionOps ich9_smi_ops = {
116 .read = ich9_smi_readl,
117 .write = ich9_smi_writel,
118 .valid.min_access_size = 4,
119 .valid.max_access_size = 4,
120 .endianness = DEVICE_LITTLE_ENDIAN,
121 };
122
123 void ich9_pm_iospace_update(ICH9LPCPMRegs *pm, uint32_t pm_io_base)
124 {
125 ICH9_DEBUG("to 0x%x\n", pm_io_base);
126
127 assert((pm_io_base & ICH9_PMIO_MASK) == 0);
128
129 pm->pm_io_base = pm_io_base;
130 memory_region_transaction_begin();
131 memory_region_set_enabled(&pm->io, pm->pm_io_base != 0);
132 memory_region_set_address(&pm->io, pm->pm_io_base);
133 memory_region_transaction_commit();
134 }
135
136 static int ich9_pm_post_load(void *opaque, int version_id)
137 {
138 ICH9LPCPMRegs *pm = opaque;
139 uint32_t pm_io_base = pm->pm_io_base;
140 pm->pm_io_base = 0;
141 ich9_pm_iospace_update(pm, pm_io_base);
142 return 0;
143 }
144
145 #define VMSTATE_GPE_ARRAY(_field, _state) \
146 { \
147 .name = (stringify(_field)), \
148 .version_id = 0, \
149 .num = ICH9_PMIO_GPE0_LEN, \
150 .info = &vmstate_info_uint8, \
151 .size = sizeof(uint8_t), \
152 .flags = VMS_ARRAY | VMS_POINTER, \
153 .offset = vmstate_offset_pointer(_state, _field, uint8_t), \
154 }
155
156 static bool vmstate_test_use_memhp(void *opaque)
157 {
158 ICH9LPCPMRegs *s = opaque;
159 return s->acpi_memory_hotplug.is_enabled;
160 }
161
162 static const VMStateDescription vmstate_memhp_state = {
163 .name = "ich9_pm/memhp",
164 .version_id = 1,
165 .minimum_version_id = 1,
166 .minimum_version_id_old = 1,
167 .needed = vmstate_test_use_memhp,
168 .fields = (VMStateField[]) {
169 VMSTATE_MEMORY_HOTPLUG(acpi_memory_hotplug, ICH9LPCPMRegs),
170 VMSTATE_END_OF_LIST()
171 }
172 };
173
174 static bool vmstate_test_use_tco(void *opaque)
175 {
176 ICH9LPCPMRegs *s = opaque;
177 return s->enable_tco;
178 }
179
180 static const VMStateDescription vmstate_tco_io_state = {
181 .name = "ich9_pm/tco",
182 .version_id = 1,
183 .minimum_version_id = 1,
184 .minimum_version_id_old = 1,
185 .needed = vmstate_test_use_tco,
186 .fields = (VMStateField[]) {
187 VMSTATE_STRUCT(tco_regs, ICH9LPCPMRegs, 1, vmstate_tco_io_sts,
188 TCOIORegs),
189 VMSTATE_END_OF_LIST()
190 }
191 };
192
193 static bool vmstate_test_use_cpuhp(void *opaque)
194 {
195 ICH9LPCPMRegs *s = opaque;
196 return !s->cpu_hotplug_legacy;
197 }
198
199 static int vmstate_cpuhp_pre_load(void *opaque)
200 {
201 ICH9LPCPMRegs *s = opaque;
202 Object *obj = OBJECT(s->gpe_cpu.device);
203 object_property_set_bool(obj, "cpu-hotplug-legacy", false, &error_abort);
204 return 0;
205 }
206
207 static const VMStateDescription vmstate_cpuhp_state = {
208 .name = "ich9_pm/cpuhp",
209 .version_id = 1,
210 .minimum_version_id = 1,
211 .minimum_version_id_old = 1,
212 .needed = vmstate_test_use_cpuhp,
213 .pre_load = vmstate_cpuhp_pre_load,
214 .fields = (VMStateField[]) {
215 VMSTATE_CPU_HOTPLUG(cpuhp_state, ICH9LPCPMRegs),
216 VMSTATE_END_OF_LIST()
217 }
218 };
219
220 static bool vmstate_test_use_pcihp(void *opaque)
221 {
222 ICH9LPCPMRegs *s = opaque;
223
224 return s->use_acpi_hotplug_bridge;
225 }
226
227 static const VMStateDescription vmstate_pcihp_state = {
228 .name = "ich9_pm/pcihp",
229 .version_id = 1,
230 .minimum_version_id = 1,
231 .needed = vmstate_test_use_pcihp,
232 .fields = (VMStateField[]) {
233 VMSTATE_PCI_HOTPLUG(acpi_pci_hotplug,
234 ICH9LPCPMRegs,
235 NULL, NULL),
236 VMSTATE_END_OF_LIST()
237 }
238 };
239
240 const VMStateDescription vmstate_ich9_pm = {
241 .name = "ich9_pm",
242 .version_id = 1,
243 .minimum_version_id = 1,
244 .post_load = ich9_pm_post_load,
245 .fields = (VMStateField[]) {
246 VMSTATE_UINT16(acpi_regs.pm1.evt.sts, ICH9LPCPMRegs),
247 VMSTATE_UINT16(acpi_regs.pm1.evt.en, ICH9LPCPMRegs),
248 VMSTATE_UINT16(acpi_regs.pm1.cnt.cnt, ICH9LPCPMRegs),
249 VMSTATE_TIMER_PTR(acpi_regs.tmr.timer, ICH9LPCPMRegs),
250 VMSTATE_INT64(acpi_regs.tmr.overflow_time, ICH9LPCPMRegs),
251 VMSTATE_GPE_ARRAY(acpi_regs.gpe.sts, ICH9LPCPMRegs),
252 VMSTATE_GPE_ARRAY(acpi_regs.gpe.en, ICH9LPCPMRegs),
253 VMSTATE_UINT32(smi_en, ICH9LPCPMRegs),
254 VMSTATE_UINT32(smi_sts, ICH9LPCPMRegs),
255 VMSTATE_END_OF_LIST()
256 },
257 .subsections = (const VMStateDescription*[]) {
258 &vmstate_memhp_state,
259 &vmstate_tco_io_state,
260 &vmstate_cpuhp_state,
261 &vmstate_pcihp_state,
262 NULL
263 }
264 };
265
266 static void pm_reset(void *opaque)
267 {
268 ICH9LPCPMRegs *pm = opaque;
269 ich9_pm_iospace_update(pm, 0);
270
271 acpi_pm1_evt_reset(&pm->acpi_regs);
272 acpi_pm1_cnt_reset(&pm->acpi_regs);
273 acpi_pm_tmr_reset(&pm->acpi_regs);
274 acpi_gpe_reset(&pm->acpi_regs);
275
276 pm->smi_en = 0;
277 if (!pm->smm_enabled) {
278 /* Mark SMM as already inited to prevent SMM from running. */
279 pm->smi_en |= ICH9_PMIO_SMI_EN_APMC_EN;
280 }
281 pm->smi_en_wmask = ~0;
282
283 if (pm->use_acpi_hotplug_bridge) {
284 acpi_pcihp_reset(&pm->acpi_pci_hotplug, true);
285 }
286
287 acpi_update_sci(&pm->acpi_regs, pm->irq);
288 }
289
290 static void pm_powerdown_req(Notifier *n, void *opaque)
291 {
292 ICH9LPCPMRegs *pm = container_of(n, ICH9LPCPMRegs, powerdown_notifier);
293
294 acpi_pm1_evt_power_down(&pm->acpi_regs);
295 }
296
297 void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *pm,
298 bool smm_enabled,
299 qemu_irq sci_irq)
300 {
301 memory_region_init(&pm->io, OBJECT(lpc_pci), "ich9-pm", ICH9_PMIO_SIZE);
302 memory_region_set_enabled(&pm->io, false);
303 memory_region_add_subregion(pci_address_space_io(lpc_pci),
304 0, &pm->io);
305
306 acpi_pm_tmr_init(&pm->acpi_regs, ich9_pm_update_sci_fn, &pm->io);
307 acpi_pm1_evt_init(&pm->acpi_regs, ich9_pm_update_sci_fn, &pm->io);
308 acpi_pm1_cnt_init(&pm->acpi_regs, &pm->io, pm->disable_s3, pm->disable_s4,
309 pm->s4_val, !pm->smm_compat && !smm_enabled);
310
311 acpi_gpe_init(&pm->acpi_regs, ICH9_PMIO_GPE0_LEN);
312 memory_region_init_io(&pm->io_gpe, OBJECT(lpc_pci), &ich9_gpe_ops, pm,
313 "acpi-gpe0", ICH9_PMIO_GPE0_LEN);
314 memory_region_add_subregion(&pm->io, ICH9_PMIO_GPE0_STS, &pm->io_gpe);
315
316 memory_region_init_io(&pm->io_smi, OBJECT(lpc_pci), &ich9_smi_ops, pm,
317 "acpi-smi", 8);
318 memory_region_add_subregion(&pm->io, ICH9_PMIO_SMI_EN, &pm->io_smi);
319
320 pm->smm_enabled = smm_enabled;
321
322 pm->enable_tco = true;
323 acpi_pm_tco_init(&pm->tco_regs, &pm->io);
324
325 if (pm->use_acpi_hotplug_bridge) {
326 acpi_pcihp_init(OBJECT(lpc_pci),
327 &pm->acpi_pci_hotplug,
328 pci_get_bus(lpc_pci),
329 pci_address_space_io(lpc_pci),
330 true,
331 ACPI_PCIHP_ADDR_ICH9);
332
333 qbus_set_hotplug_handler(BUS(pci_get_bus(lpc_pci)),
334 OBJECT(lpc_pci));
335 }
336
337 pm->irq = sci_irq;
338 qemu_register_reset(pm_reset, pm);
339 pm->powerdown_notifier.notify = pm_powerdown_req;
340 qemu_register_powerdown_notifier(&pm->powerdown_notifier);
341
342 legacy_acpi_cpu_hotplug_init(pci_address_space_io(lpc_pci),
343 OBJECT(lpc_pci), &pm->gpe_cpu, ICH9_CPU_HOTPLUG_IO_BASE);
344
345 if (pm->acpi_memory_hotplug.is_enabled) {
346 acpi_memory_hotplug_init(pci_address_space_io(lpc_pci), OBJECT(lpc_pci),
347 &pm->acpi_memory_hotplug,
348 ACPI_MEMORY_HOTPLUG_BASE);
349 }
350 }
351
352 static void ich9_pm_get_gpe0_blk(Object *obj, Visitor *v, const char *name,
353 void *opaque, Error **errp)
354 {
355 ICH9LPCPMRegs *pm = opaque;
356 uint32_t value = pm->pm_io_base + ICH9_PMIO_GPE0_STS;
357
358 visit_type_uint32(v, name, &value, errp);
359 }
360
361 static bool ich9_pm_get_memory_hotplug_support(Object *obj, Error **errp)
362 {
363 ICH9LPCState *s = ICH9_LPC_DEVICE(obj);
364
365 return s->pm.acpi_memory_hotplug.is_enabled;
366 }
367
368 static void ich9_pm_set_memory_hotplug_support(Object *obj, bool value,
369 Error **errp)
370 {
371 ICH9LPCState *s = ICH9_LPC_DEVICE(obj);
372
373 s->pm.acpi_memory_hotplug.is_enabled = value;
374 }
375
376 static bool ich9_pm_get_cpu_hotplug_legacy(Object *obj, Error **errp)
377 {
378 ICH9LPCState *s = ICH9_LPC_DEVICE(obj);
379
380 return s->pm.cpu_hotplug_legacy;
381 }
382
383 static void ich9_pm_set_cpu_hotplug_legacy(Object *obj, bool value,
384 Error **errp)
385 {
386 ICH9LPCState *s = ICH9_LPC_DEVICE(obj);
387
388 assert(!value);
389 if (s->pm.cpu_hotplug_legacy && value == false) {
390 acpi_switch_to_modern_cphp(&s->pm.gpe_cpu, &s->pm.cpuhp_state,
391 ICH9_CPU_HOTPLUG_IO_BASE);
392 }
393 s->pm.cpu_hotplug_legacy = value;
394 }
395
396 static bool ich9_pm_get_enable_tco(Object *obj, Error **errp)
397 {
398 ICH9LPCState *s = ICH9_LPC_DEVICE(obj);
399 return s->pm.enable_tco;
400 }
401
402 static void ich9_pm_set_enable_tco(Object *obj, bool value, Error **errp)
403 {
404 ICH9LPCState *s = ICH9_LPC_DEVICE(obj);
405 s->pm.enable_tco = value;
406 }
407
408 static bool ich9_pm_get_acpi_pci_hotplug(Object *obj, Error **errp)
409 {
410 ICH9LPCState *s = ICH9_LPC_DEVICE(obj);
411
412 return s->pm.use_acpi_hotplug_bridge;
413 }
414
415 static void ich9_pm_set_acpi_pci_hotplug(Object *obj, bool value, Error **errp)
416 {
417 ICH9LPCState *s = ICH9_LPC_DEVICE(obj);
418
419 s->pm.use_acpi_hotplug_bridge = value;
420 }
421
422 static bool ich9_pm_get_keep_pci_slot_hpc(Object *obj, Error **errp)
423 {
424 ICH9LPCState *s = ICH9_LPC_DEVICE(obj);
425
426 return s->pm.keep_pci_slot_hpc;
427 }
428
429 static void ich9_pm_set_keep_pci_slot_hpc(Object *obj, bool value, Error **errp)
430 {
431 ICH9LPCState *s = ICH9_LPC_DEVICE(obj);
432
433 s->pm.keep_pci_slot_hpc = value;
434 }
435
436 void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm)
437 {
438 static const uint32_t gpe0_len = ICH9_PMIO_GPE0_LEN;
439 pm->acpi_memory_hotplug.is_enabled = true;
440 pm->cpu_hotplug_legacy = true;
441 pm->disable_s3 = 0;
442 pm->disable_s4 = 0;
443 pm->s4_val = 2;
444 pm->use_acpi_hotplug_bridge = true;
445 pm->keep_pci_slot_hpc = true;
446
447 object_property_add_uint32_ptr(obj, ACPI_PM_PROP_PM_IO_BASE,
448 &pm->pm_io_base, OBJ_PROP_FLAG_READ);
449 object_property_add(obj, ACPI_PM_PROP_GPE0_BLK, "uint32",
450 ich9_pm_get_gpe0_blk,
451 NULL, NULL, pm);
452 object_property_add_uint32_ptr(obj, ACPI_PM_PROP_GPE0_BLK_LEN,
453 &gpe0_len, OBJ_PROP_FLAG_READ);
454 object_property_add_bool(obj, "memory-hotplug-support",
455 ich9_pm_get_memory_hotplug_support,
456 ich9_pm_set_memory_hotplug_support);
457 object_property_add_bool(obj, "cpu-hotplug-legacy",
458 ich9_pm_get_cpu_hotplug_legacy,
459 ich9_pm_set_cpu_hotplug_legacy);
460 object_property_add_uint8_ptr(obj, ACPI_PM_PROP_S3_DISABLED,
461 &pm->disable_s3, OBJ_PROP_FLAG_READWRITE);
462 object_property_add_uint8_ptr(obj, ACPI_PM_PROP_S4_DISABLED,
463 &pm->disable_s4, OBJ_PROP_FLAG_READWRITE);
464 object_property_add_uint8_ptr(obj, ACPI_PM_PROP_S4_VAL,
465 &pm->s4_val, OBJ_PROP_FLAG_READWRITE);
466 object_property_add_bool(obj, ACPI_PM_PROP_TCO_ENABLED,
467 ich9_pm_get_enable_tco,
468 ich9_pm_set_enable_tco);
469 object_property_add_bool(obj, ACPI_PM_PROP_ACPI_PCIHP_BRIDGE,
470 ich9_pm_get_acpi_pci_hotplug,
471 ich9_pm_set_acpi_pci_hotplug);
472 object_property_add_bool(obj, "x-keep-pci-slot-hpc",
473 ich9_pm_get_keep_pci_slot_hpc,
474 ich9_pm_set_keep_pci_slot_hpc);
475 }
476
477 void ich9_pm_device_pre_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
478 Error **errp)
479 {
480 ICH9LPCState *lpc = ICH9_LPC_DEVICE(hotplug_dev);
481
482 if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
483 acpi_pcihp_device_pre_plug_cb(hotplug_dev, dev, errp);
484 return;
485 }
486
487 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) &&
488 !lpc->pm.acpi_memory_hotplug.is_enabled) {
489 error_setg(errp,
490 "memory hotplug is not enabled: %s.memory-hotplug-support "
491 "is not set", object_get_typename(OBJECT(lpc)));
492 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
493 uint64_t negotiated = lpc->smi_negotiated_features;
494
495 if (negotiated & BIT_ULL(ICH9_LPC_SMI_F_BROADCAST_BIT) &&
496 !(negotiated & BIT_ULL(ICH9_LPC_SMI_F_CPU_HOTPLUG_BIT))) {
497 error_setg(errp, "cpu hotplug with SMI wasn't enabled by firmware");
498 error_append_hint(errp, "update machine type to newer than 5.1 "
499 "and firmware that suppors CPU hotplug with SMM");
500 }
501 }
502 }
503
504 void ich9_pm_device_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
505 Error **errp)
506 {
507 ICH9LPCState *lpc = ICH9_LPC_DEVICE(hotplug_dev);
508
509 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
510 if (object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)) {
511 nvdimm_acpi_plug_cb(hotplug_dev, dev);
512 } else {
513 acpi_memory_plug_cb(hotplug_dev, &lpc->pm.acpi_memory_hotplug,
514 dev, errp);
515 }
516 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
517 if (lpc->pm.cpu_hotplug_legacy) {
518 legacy_acpi_cpu_plug_cb(hotplug_dev, &lpc->pm.gpe_cpu, dev, errp);
519 } else {
520 acpi_cpu_plug_cb(hotplug_dev, &lpc->pm.cpuhp_state, dev, errp);
521 }
522 } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
523 acpi_pcihp_device_plug_cb(hotplug_dev, &lpc->pm.acpi_pci_hotplug,
524 dev, errp);
525 } else {
526 error_setg(errp, "acpi: device plug request for not supported device"
527 " type: %s", object_get_typename(OBJECT(dev)));
528 }
529 }
530
531 void ich9_pm_device_unplug_request_cb(HotplugHandler *hotplug_dev,
532 DeviceState *dev, Error **errp)
533 {
534 ICH9LPCState *lpc = ICH9_LPC_DEVICE(hotplug_dev);
535
536 if (lpc->pm.acpi_memory_hotplug.is_enabled &&
537 object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
538 acpi_memory_unplug_request_cb(hotplug_dev,
539 &lpc->pm.acpi_memory_hotplug, dev,
540 errp);
541 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU) &&
542 !lpc->pm.cpu_hotplug_legacy) {
543 uint64_t negotiated = lpc->smi_negotiated_features;
544
545 if (negotiated & BIT_ULL(ICH9_LPC_SMI_F_BROADCAST_BIT) &&
546 !(negotiated & BIT_ULL(ICH9_LPC_SMI_F_CPU_HOT_UNPLUG_BIT))) {
547 error_setg(errp, "cpu hot-unplug with SMI wasn't enabled "
548 "by firmware");
549 error_append_hint(errp, "update machine type to a version having "
550 "x-smi-cpu-hotunplug=on and firmware that "
551 "supports CPU hot-unplug with SMM");
552 return;
553 }
554
555 acpi_cpu_unplug_request_cb(hotplug_dev, &lpc->pm.cpuhp_state,
556 dev, errp);
557 } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
558 acpi_pcihp_device_unplug_request_cb(hotplug_dev,
559 &lpc->pm.acpi_pci_hotplug,
560 dev, errp);
561 } else {
562 error_setg(errp, "acpi: device unplug request for not supported device"
563 " type: %s", object_get_typename(OBJECT(dev)));
564 }
565 }
566
567 void ich9_pm_device_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
568 Error **errp)
569 {
570 ICH9LPCState *lpc = ICH9_LPC_DEVICE(hotplug_dev);
571
572 if (lpc->pm.acpi_memory_hotplug.is_enabled &&
573 object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
574 acpi_memory_unplug_cb(&lpc->pm.acpi_memory_hotplug, dev, errp);
575 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU) &&
576 !lpc->pm.cpu_hotplug_legacy) {
577 acpi_cpu_unplug_cb(&lpc->pm.cpuhp_state, dev, errp);
578 } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
579 acpi_pcihp_device_unplug_cb(hotplug_dev, &lpc->pm.acpi_pci_hotplug,
580 dev, errp);
581 } else {
582 error_setg(errp, "acpi: device unplug for not supported device"
583 " type: %s", object_get_typename(OBJECT(dev)));
584 }
585 }
586
587 void ich9_pm_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list)
588 {
589 ICH9LPCState *s = ICH9_LPC_DEVICE(adev);
590
591 acpi_memory_ospm_status(&s->pm.acpi_memory_hotplug, list);
592 if (!s->pm.cpu_hotplug_legacy) {
593 acpi_cpu_ospm_status(&s->pm.cpuhp_state, list);
594 }
595 }