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/ich9_tco.h" 38 39 #include "hw/southbridge/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 .needed = vmstate_test_use_memhp, 167 .fields = (VMStateField[]) { 168 VMSTATE_MEMORY_HOTPLUG(acpi_memory_hotplug, ICH9LPCPMRegs), 169 VMSTATE_END_OF_LIST() 170 } 171 }; 172 173 static bool vmstate_test_use_tco(void *opaque) 174 { 175 ICH9LPCPMRegs *s = opaque; 176 return s->enable_tco; 177 } 178 179 static const VMStateDescription vmstate_tco_io_state = { 180 .name = "ich9_pm/tco", 181 .version_id = 1, 182 .minimum_version_id = 1, 183 .needed = vmstate_test_use_tco, 184 .fields = (VMStateField[]) { 185 VMSTATE_STRUCT(tco_regs, ICH9LPCPMRegs, 1, vmstate_tco_io_sts, 186 TCOIORegs), 187 VMSTATE_END_OF_LIST() 188 } 189 }; 190 191 static bool vmstate_test_use_cpuhp(void *opaque) 192 { 193 ICH9LPCPMRegs *s = opaque; 194 return !s->cpu_hotplug_legacy; 195 } 196 197 static int vmstate_cpuhp_pre_load(void *opaque) 198 { 199 ICH9LPCPMRegs *s = opaque; 200 Object *obj = OBJECT(s->gpe_cpu.device); 201 object_property_set_bool(obj, "cpu-hotplug-legacy", false, &error_abort); 202 return 0; 203 } 204 205 static const VMStateDescription vmstate_cpuhp_state = { 206 .name = "ich9_pm/cpuhp", 207 .version_id = 1, 208 .minimum_version_id = 1, 209 .needed = vmstate_test_use_cpuhp, 210 .pre_load = vmstate_cpuhp_pre_load, 211 .fields = (VMStateField[]) { 212 VMSTATE_CPU_HOTPLUG(cpuhp_state, ICH9LPCPMRegs), 213 VMSTATE_END_OF_LIST() 214 } 215 }; 216 217 static bool vmstate_test_use_pcihp(void *opaque) 218 { 219 ICH9LPCPMRegs *s = opaque; 220 221 return s->acpi_pci_hotplug.use_acpi_hotplug_bridge; 222 } 223 224 static const VMStateDescription vmstate_pcihp_state = { 225 .name = "ich9_pm/pcihp", 226 .version_id = 1, 227 .minimum_version_id = 1, 228 .needed = vmstate_test_use_pcihp, 229 .fields = (VMStateField[]) { 230 VMSTATE_PCI_HOTPLUG(acpi_pci_hotplug, 231 ICH9LPCPMRegs, 232 NULL, NULL), 233 VMSTATE_END_OF_LIST() 234 } 235 }; 236 237 const VMStateDescription vmstate_ich9_pm = { 238 .name = "ich9_pm", 239 .version_id = 1, 240 .minimum_version_id = 1, 241 .post_load = ich9_pm_post_load, 242 .fields = (VMStateField[]) { 243 VMSTATE_UINT16(acpi_regs.pm1.evt.sts, ICH9LPCPMRegs), 244 VMSTATE_UINT16(acpi_regs.pm1.evt.en, ICH9LPCPMRegs), 245 VMSTATE_UINT16(acpi_regs.pm1.cnt.cnt, ICH9LPCPMRegs), 246 VMSTATE_TIMER_PTR(acpi_regs.tmr.timer, ICH9LPCPMRegs), 247 VMSTATE_INT64(acpi_regs.tmr.overflow_time, ICH9LPCPMRegs), 248 VMSTATE_GPE_ARRAY(acpi_regs.gpe.sts, ICH9LPCPMRegs), 249 VMSTATE_GPE_ARRAY(acpi_regs.gpe.en, ICH9LPCPMRegs), 250 VMSTATE_UINT32(smi_en, ICH9LPCPMRegs), 251 VMSTATE_UINT32(smi_sts, ICH9LPCPMRegs), 252 VMSTATE_END_OF_LIST() 253 }, 254 .subsections = (const VMStateDescription*[]) { 255 &vmstate_memhp_state, 256 &vmstate_tco_io_state, 257 &vmstate_cpuhp_state, 258 &vmstate_pcihp_state, 259 NULL 260 } 261 }; 262 263 static void pm_reset(void *opaque) 264 { 265 ICH9LPCPMRegs *pm = opaque; 266 ich9_pm_iospace_update(pm, 0); 267 268 acpi_pm1_evt_reset(&pm->acpi_regs); 269 acpi_pm1_cnt_reset(&pm->acpi_regs); 270 acpi_pm_tmr_reset(&pm->acpi_regs); 271 acpi_gpe_reset(&pm->acpi_regs); 272 273 pm->smi_en = 0; 274 if (!pm->smm_enabled) { 275 /* Mark SMM as already inited to prevent SMM from running. */ 276 pm->smi_en |= ICH9_PMIO_SMI_EN_APMC_EN; 277 } 278 pm->smi_en_wmask = ~0; 279 280 if (pm->acpi_pci_hotplug.use_acpi_hotplug_bridge) { 281 acpi_pcihp_reset(&pm->acpi_pci_hotplug); 282 } 283 284 acpi_update_sci(&pm->acpi_regs, pm->irq); 285 } 286 287 static void pm_powerdown_req(Notifier *n, void *opaque) 288 { 289 ICH9LPCPMRegs *pm = container_of(n, ICH9LPCPMRegs, powerdown_notifier); 290 291 acpi_pm1_evt_power_down(&pm->acpi_regs); 292 } 293 294 void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *pm, qemu_irq sci_irq) 295 { 296 memory_region_init(&pm->io, OBJECT(lpc_pci), "ich9-pm", ICH9_PMIO_SIZE); 297 memory_region_set_enabled(&pm->io, false); 298 memory_region_add_subregion(pci_address_space_io(lpc_pci), 299 0, &pm->io); 300 301 acpi_pm_tmr_init(&pm->acpi_regs, ich9_pm_update_sci_fn, &pm->io); 302 acpi_pm1_evt_init(&pm->acpi_regs, ich9_pm_update_sci_fn, &pm->io); 303 acpi_pm1_cnt_init(&pm->acpi_regs, &pm->io, pm->disable_s3, pm->disable_s4, 304 pm->s4_val, !pm->smm_compat && !pm->smm_enabled); 305 306 acpi_gpe_init(&pm->acpi_regs, ICH9_PMIO_GPE0_LEN); 307 memory_region_init_io(&pm->io_gpe, OBJECT(lpc_pci), &ich9_gpe_ops, pm, 308 "acpi-gpe0", ICH9_PMIO_GPE0_LEN); 309 memory_region_add_subregion(&pm->io, ICH9_PMIO_GPE0_STS, &pm->io_gpe); 310 311 memory_region_init_io(&pm->io_smi, OBJECT(lpc_pci), &ich9_smi_ops, pm, 312 "acpi-smi", 8); 313 memory_region_add_subregion(&pm->io, ICH9_PMIO_SMI_EN, &pm->io_smi); 314 315 if (pm->enable_tco) { 316 acpi_pm_tco_init(&pm->tco_regs, &pm->io); 317 } 318 319 if (pm->acpi_pci_hotplug.use_acpi_hotplug_bridge) { 320 acpi_pcihp_init(OBJECT(lpc_pci), 321 &pm->acpi_pci_hotplug, 322 pci_get_bus(lpc_pci), 323 pci_address_space_io(lpc_pci), 324 ACPI_PCIHP_ADDR_ICH9); 325 326 qbus_set_hotplug_handler(BUS(pci_get_bus(lpc_pci)), 327 OBJECT(lpc_pci)); 328 } 329 330 pm->irq = sci_irq; 331 qemu_register_reset(pm_reset, pm); 332 pm->powerdown_notifier.notify = pm_powerdown_req; 333 qemu_register_powerdown_notifier(&pm->powerdown_notifier); 334 335 legacy_acpi_cpu_hotplug_init(pci_address_space_io(lpc_pci), 336 OBJECT(lpc_pci), &pm->gpe_cpu, ICH9_CPU_HOTPLUG_IO_BASE); 337 338 if (pm->acpi_memory_hotplug.is_enabled) { 339 acpi_memory_hotplug_init(pci_address_space_io(lpc_pci), OBJECT(lpc_pci), 340 &pm->acpi_memory_hotplug, 341 ACPI_MEMORY_HOTPLUG_BASE); 342 } 343 } 344 345 static void ich9_pm_get_gpe0_blk(Object *obj, Visitor *v, const char *name, 346 void *opaque, Error **errp) 347 { 348 ICH9LPCPMRegs *pm = opaque; 349 uint32_t value = pm->pm_io_base + ICH9_PMIO_GPE0_STS; 350 351 visit_type_uint32(v, name, &value, errp); 352 } 353 354 static bool ich9_pm_get_memory_hotplug_support(Object *obj, Error **errp) 355 { 356 ICH9LPCState *s = ICH9_LPC_DEVICE(obj); 357 358 return s->pm.acpi_memory_hotplug.is_enabled; 359 } 360 361 static void ich9_pm_set_memory_hotplug_support(Object *obj, bool value, 362 Error **errp) 363 { 364 ICH9LPCState *s = ICH9_LPC_DEVICE(obj); 365 366 s->pm.acpi_memory_hotplug.is_enabled = value; 367 } 368 369 static bool ich9_pm_get_cpu_hotplug_legacy(Object *obj, Error **errp) 370 { 371 ICH9LPCState *s = ICH9_LPC_DEVICE(obj); 372 373 return s->pm.cpu_hotplug_legacy; 374 } 375 376 static void ich9_pm_set_cpu_hotplug_legacy(Object *obj, bool value, 377 Error **errp) 378 { 379 ICH9LPCState *s = ICH9_LPC_DEVICE(obj); 380 381 assert(!value); 382 if (s->pm.cpu_hotplug_legacy && value == false) { 383 acpi_switch_to_modern_cphp(&s->pm.gpe_cpu, &s->pm.cpuhp_state, 384 ICH9_CPU_HOTPLUG_IO_BASE); 385 } 386 s->pm.cpu_hotplug_legacy = value; 387 } 388 389 static bool ich9_pm_get_enable_tco(Object *obj, Error **errp) 390 { 391 ICH9LPCState *s = ICH9_LPC_DEVICE(obj); 392 return s->pm.enable_tco; 393 } 394 395 static void ich9_pm_set_enable_tco(Object *obj, bool value, Error **errp) 396 { 397 ICH9LPCState *s = ICH9_LPC_DEVICE(obj); 398 s->pm.enable_tco = value; 399 } 400 401 static bool ich9_pm_get_acpi_pci_hotplug(Object *obj, Error **errp) 402 { 403 ICH9LPCState *s = ICH9_LPC_DEVICE(obj); 404 405 return s->pm.acpi_pci_hotplug.use_acpi_hotplug_bridge; 406 } 407 408 static void ich9_pm_set_acpi_pci_hotplug(Object *obj, bool value, Error **errp) 409 { 410 ICH9LPCState *s = ICH9_LPC_DEVICE(obj); 411 412 s->pm.acpi_pci_hotplug.use_acpi_hotplug_bridge = value; 413 } 414 415 static bool ich9_pm_get_keep_pci_slot_hpc(Object *obj, Error **errp) 416 { 417 ICH9LPCState *s = ICH9_LPC_DEVICE(obj); 418 419 return s->pm.keep_pci_slot_hpc; 420 } 421 422 static void ich9_pm_set_keep_pci_slot_hpc(Object *obj, bool value, Error **errp) 423 { 424 ICH9LPCState *s = ICH9_LPC_DEVICE(obj); 425 426 s->pm.keep_pci_slot_hpc = value; 427 } 428 429 void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm) 430 { 431 static const uint32_t gpe0_len = ICH9_PMIO_GPE0_LEN; 432 pm->acpi_memory_hotplug.is_enabled = true; 433 pm->cpu_hotplug_legacy = true; 434 pm->disable_s3 = 0; 435 pm->disable_s4 = 0; 436 pm->s4_val = 2; 437 pm->acpi_pci_hotplug.use_acpi_hotplug_bridge = true; 438 pm->keep_pci_slot_hpc = true; 439 pm->enable_tco = true; 440 441 object_property_add_uint32_ptr(obj, ACPI_PM_PROP_PM_IO_BASE, 442 &pm->pm_io_base, OBJ_PROP_FLAG_READ); 443 object_property_add(obj, ACPI_PM_PROP_GPE0_BLK, "uint32", 444 ich9_pm_get_gpe0_blk, 445 NULL, NULL, pm); 446 object_property_add_uint32_ptr(obj, ACPI_PM_PROP_GPE0_BLK_LEN, 447 &gpe0_len, OBJ_PROP_FLAG_READ); 448 object_property_add_bool(obj, "memory-hotplug-support", 449 ich9_pm_get_memory_hotplug_support, 450 ich9_pm_set_memory_hotplug_support); 451 object_property_add_bool(obj, "cpu-hotplug-legacy", 452 ich9_pm_get_cpu_hotplug_legacy, 453 ich9_pm_set_cpu_hotplug_legacy); 454 object_property_add_uint8_ptr(obj, ACPI_PM_PROP_S3_DISABLED, 455 &pm->disable_s3, OBJ_PROP_FLAG_READWRITE); 456 object_property_add_uint8_ptr(obj, ACPI_PM_PROP_S4_DISABLED, 457 &pm->disable_s4, OBJ_PROP_FLAG_READWRITE); 458 object_property_add_uint8_ptr(obj, ACPI_PM_PROP_S4_VAL, 459 &pm->s4_val, OBJ_PROP_FLAG_READWRITE); 460 object_property_add_bool(obj, ACPI_PM_PROP_TCO_ENABLED, 461 ich9_pm_get_enable_tco, 462 ich9_pm_set_enable_tco); 463 object_property_add_bool(obj, ACPI_PM_PROP_ACPI_PCIHP_BRIDGE, 464 ich9_pm_get_acpi_pci_hotplug, 465 ich9_pm_set_acpi_pci_hotplug); 466 object_property_add_bool(obj, "x-keep-pci-slot-hpc", 467 ich9_pm_get_keep_pci_slot_hpc, 468 ich9_pm_set_keep_pci_slot_hpc); 469 } 470 471 void ich9_pm_device_pre_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, 472 Error **errp) 473 { 474 ICH9LPCState *lpc = ICH9_LPC_DEVICE(hotplug_dev); 475 476 if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { 477 acpi_pcihp_device_pre_plug_cb(hotplug_dev, dev, errp); 478 return; 479 } 480 481 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) && 482 !lpc->pm.acpi_memory_hotplug.is_enabled) { 483 error_setg(errp, 484 "memory hotplug is not enabled: %s.memory-hotplug-support " 485 "is not set", object_get_typename(OBJECT(lpc))); 486 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 487 uint64_t negotiated = lpc->smi_negotiated_features; 488 489 if (negotiated & BIT_ULL(ICH9_LPC_SMI_F_BROADCAST_BIT) && 490 !(negotiated & BIT_ULL(ICH9_LPC_SMI_F_CPU_HOTPLUG_BIT))) { 491 error_setg(errp, "cpu hotplug with SMI wasn't enabled by firmware"); 492 error_append_hint(errp, "update machine type to newer than 5.1 " 493 "and firmware that suppors CPU hotplug with SMM"); 494 } 495 } 496 } 497 498 void ich9_pm_device_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, 499 Error **errp) 500 { 501 ICH9LPCState *lpc = ICH9_LPC_DEVICE(hotplug_dev); 502 503 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 504 if (object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)) { 505 nvdimm_acpi_plug_cb(hotplug_dev, dev); 506 } else { 507 acpi_memory_plug_cb(hotplug_dev, &lpc->pm.acpi_memory_hotplug, 508 dev, errp); 509 } 510 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 511 if (lpc->pm.cpu_hotplug_legacy) { 512 legacy_acpi_cpu_plug_cb(hotplug_dev, &lpc->pm.gpe_cpu, dev, errp); 513 } else { 514 acpi_cpu_plug_cb(hotplug_dev, &lpc->pm.cpuhp_state, dev, errp); 515 } 516 } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { 517 acpi_pcihp_device_plug_cb(hotplug_dev, &lpc->pm.acpi_pci_hotplug, 518 dev, errp); 519 } else { 520 error_setg(errp, "acpi: device plug request for not supported device" 521 " type: %s", object_get_typename(OBJECT(dev))); 522 } 523 } 524 525 void ich9_pm_device_unplug_request_cb(HotplugHandler *hotplug_dev, 526 DeviceState *dev, Error **errp) 527 { 528 ICH9LPCState *lpc = ICH9_LPC_DEVICE(hotplug_dev); 529 530 if (lpc->pm.acpi_memory_hotplug.is_enabled && 531 object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 532 acpi_memory_unplug_request_cb(hotplug_dev, 533 &lpc->pm.acpi_memory_hotplug, dev, 534 errp); 535 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU) && 536 !lpc->pm.cpu_hotplug_legacy) { 537 uint64_t negotiated = lpc->smi_negotiated_features; 538 539 if (negotiated & BIT_ULL(ICH9_LPC_SMI_F_BROADCAST_BIT) && 540 !(negotiated & BIT_ULL(ICH9_LPC_SMI_F_CPU_HOT_UNPLUG_BIT))) { 541 error_setg(errp, "cpu hot-unplug with SMI wasn't enabled " 542 "by firmware"); 543 error_append_hint(errp, "update machine type to a version having " 544 "x-smi-cpu-hotunplug=on and firmware that " 545 "supports CPU hot-unplug with SMM"); 546 return; 547 } 548 549 acpi_cpu_unplug_request_cb(hotplug_dev, &lpc->pm.cpuhp_state, 550 dev, errp); 551 } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { 552 acpi_pcihp_device_unplug_request_cb(hotplug_dev, 553 &lpc->pm.acpi_pci_hotplug, 554 dev, errp); 555 } else { 556 error_setg(errp, "acpi: device unplug request for not supported device" 557 " type: %s", object_get_typename(OBJECT(dev))); 558 } 559 } 560 561 void ich9_pm_device_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, 562 Error **errp) 563 { 564 ICH9LPCState *lpc = ICH9_LPC_DEVICE(hotplug_dev); 565 566 if (lpc->pm.acpi_memory_hotplug.is_enabled && 567 object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 568 acpi_memory_unplug_cb(&lpc->pm.acpi_memory_hotplug, dev, errp); 569 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU) && 570 !lpc->pm.cpu_hotplug_legacy) { 571 acpi_cpu_unplug_cb(&lpc->pm.cpuhp_state, dev, errp); 572 } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { 573 acpi_pcihp_device_unplug_cb(hotplug_dev, &lpc->pm.acpi_pci_hotplug, 574 dev, errp); 575 } else { 576 error_setg(errp, "acpi: device unplug for not supported device" 577 " type: %s", object_get_typename(OBJECT(dev))); 578 } 579 } 580 581 bool ich9_pm_is_hotpluggable_bus(HotplugHandler *hotplug_dev, BusState *bus) 582 { 583 ICH9LPCState *lpc = ICH9_LPC_DEVICE(hotplug_dev); 584 return acpi_pcihp_is_hotpluggbale_bus(&lpc->pm.acpi_pci_hotplug, bus); 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