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 } 596