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 2.1 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/> 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. 20 */ 21 22 #include "qemu/osdep.h" 23 #include "hw/i386/pc.h" 24 #include "hw/irq.h" 25 #include "hw/isa/apm.h" 26 #include "hw/i2c/pm_smbus.h" 27 #include "hw/pci/pci.h" 28 #include "hw/qdev-properties.h" 29 #include "hw/acpi/acpi.h" 30 #include "hw/acpi/pcihp.h" 31 #include "hw/acpi/piix4.h" 32 #include "sysemu/runstate.h" 33 #include "sysemu/sysemu.h" 34 #include "sysemu/xen.h" 35 #include "qapi/error.h" 36 #include "qemu/range.h" 37 #include "hw/acpi/pcihp.h" 38 #include "hw/acpi/cpu_hotplug.h" 39 #include "hw/acpi/cpu.h" 40 #include "hw/hotplug.h" 41 #include "hw/mem/pc-dimm.h" 42 #include "hw/mem/nvdimm.h" 43 #include "hw/acpi/memory_hotplug.h" 44 #include "hw/acpi/acpi_dev_interface.h" 45 #include "migration/vmstate.h" 46 #include "hw/core/cpu.h" 47 #include "trace.h" 48 #include "qom/object.h" 49 50 #define GPE_BASE 0xafe0 51 #define GPE_LEN 4 52 53 #define ACPI_PCIHP_ADDR_PIIX4 0xae00 54 55 struct pci_status { 56 uint32_t up; /* deprecated, maintained for migration compatibility */ 57 uint32_t down; 58 }; 59 60 static void piix4_acpi_system_hot_add_init(MemoryRegion *parent, 61 PCIBus *bus, PIIX4PMState *s); 62 63 #define ACPI_ENABLE 0xf1 64 #define ACPI_DISABLE 0xf0 65 66 static void pm_tmr_timer(ACPIREGS *ar) 67 { 68 PIIX4PMState *s = container_of(ar, PIIX4PMState, ar); 69 acpi_update_sci(&s->ar, s->irq); 70 } 71 72 static void apm_ctrl_changed(uint32_t val, void *arg) 73 { 74 PIIX4PMState *s = arg; 75 PCIDevice *d = PCI_DEVICE(s); 76 77 /* ACPI specs 3.0, 4.7.2.5 */ 78 acpi_pm1_cnt_update(&s->ar, val == ACPI_ENABLE, val == ACPI_DISABLE); 79 if (val == ACPI_ENABLE || val == ACPI_DISABLE) { 80 return; 81 } 82 83 if (d->config[0x5b] & (1 << 1)) { 84 if (s->smi_irq) { 85 qemu_irq_raise(s->smi_irq); 86 } 87 } 88 } 89 90 static void pm_io_space_update(PIIX4PMState *s) 91 { 92 PCIDevice *d = PCI_DEVICE(s); 93 94 s->io_base = le32_to_cpu(*(uint32_t *)(d->config + 0x40)); 95 s->io_base &= 0xffc0; 96 97 memory_region_transaction_begin(); 98 memory_region_set_enabled(&s->io, d->config[0x80] & 1); 99 memory_region_set_address(&s->io, s->io_base); 100 memory_region_transaction_commit(); 101 } 102 103 static void smbus_io_space_update(PIIX4PMState *s) 104 { 105 PCIDevice *d = PCI_DEVICE(s); 106 107 s->smb_io_base = le32_to_cpu(*(uint32_t *)(d->config + 0x90)); 108 s->smb_io_base &= 0xffc0; 109 110 memory_region_transaction_begin(); 111 memory_region_set_enabled(&s->smb.io, d->config[0xd2] & 1); 112 memory_region_set_address(&s->smb.io, s->smb_io_base); 113 memory_region_transaction_commit(); 114 } 115 116 static void pm_write_config(PCIDevice *d, 117 uint32_t address, uint32_t val, int len) 118 { 119 pci_default_write_config(d, address, val, len); 120 if (range_covers_byte(address, len, 0x80) || 121 ranges_overlap(address, len, 0x40, 4)) { 122 pm_io_space_update((PIIX4PMState *)d); 123 } 124 if (range_covers_byte(address, len, 0xd2) || 125 ranges_overlap(address, len, 0x90, 4)) { 126 smbus_io_space_update((PIIX4PMState *)d); 127 } 128 } 129 130 static int vmstate_acpi_post_load(void *opaque, int version_id) 131 { 132 PIIX4PMState *s = opaque; 133 134 pm_io_space_update(s); 135 smbus_io_space_update(s); 136 return 0; 137 } 138 139 #define VMSTATE_GPE_ARRAY(_field, _state) \ 140 { \ 141 .name = (stringify(_field)), \ 142 .version_id = 0, \ 143 .info = &vmstate_info_uint16, \ 144 .size = sizeof(uint16_t), \ 145 .flags = VMS_SINGLE | VMS_POINTER, \ 146 .offset = vmstate_offset_pointer(_state, _field, uint8_t), \ 147 } 148 149 static const VMStateDescription vmstate_gpe = { 150 .name = "gpe", 151 .version_id = 1, 152 .minimum_version_id = 1, 153 .fields = (VMStateField[]) { 154 VMSTATE_GPE_ARRAY(sts, ACPIGPE), 155 VMSTATE_GPE_ARRAY(en, ACPIGPE), 156 VMSTATE_END_OF_LIST() 157 } 158 }; 159 160 static const VMStateDescription vmstate_pci_status = { 161 .name = "pci_status", 162 .version_id = 1, 163 .minimum_version_id = 1, 164 .fields = (VMStateField[]) { 165 VMSTATE_UINT32(up, struct AcpiPciHpPciStatus), 166 VMSTATE_UINT32(down, struct AcpiPciHpPciStatus), 167 VMSTATE_END_OF_LIST() 168 } 169 }; 170 171 static bool vmstate_test_use_acpi_hotplug_bridge(void *opaque, int version_id) 172 { 173 PIIX4PMState *s = opaque; 174 return s->use_acpi_hotplug_bridge; 175 } 176 177 static bool vmstate_test_no_use_acpi_hotplug_bridge(void *opaque, 178 int version_id) 179 { 180 PIIX4PMState *s = opaque; 181 return !s->use_acpi_hotplug_bridge; 182 } 183 184 static bool vmstate_test_use_memhp(void *opaque) 185 { 186 PIIX4PMState *s = opaque; 187 return s->acpi_memory_hotplug.is_enabled; 188 } 189 190 static const VMStateDescription vmstate_memhp_state = { 191 .name = "piix4_pm/memhp", 192 .version_id = 1, 193 .minimum_version_id = 1, 194 .needed = vmstate_test_use_memhp, 195 .fields = (VMStateField[]) { 196 VMSTATE_MEMORY_HOTPLUG(acpi_memory_hotplug, PIIX4PMState), 197 VMSTATE_END_OF_LIST() 198 } 199 }; 200 201 static bool vmstate_test_use_cpuhp(void *opaque) 202 { 203 PIIX4PMState *s = opaque; 204 return !s->cpu_hotplug_legacy; 205 } 206 207 static int vmstate_cpuhp_pre_load(void *opaque) 208 { 209 Object *obj = OBJECT(opaque); 210 object_property_set_bool(obj, "cpu-hotplug-legacy", false, &error_abort); 211 return 0; 212 } 213 214 static const VMStateDescription vmstate_cpuhp_state = { 215 .name = "piix4_pm/cpuhp", 216 .version_id = 1, 217 .minimum_version_id = 1, 218 .needed = vmstate_test_use_cpuhp, 219 .pre_load = vmstate_cpuhp_pre_load, 220 .fields = (VMStateField[]) { 221 VMSTATE_CPU_HOTPLUG(cpuhp_state, PIIX4PMState), 222 VMSTATE_END_OF_LIST() 223 } 224 }; 225 226 static bool piix4_vmstate_need_smbus(void *opaque, int version_id) 227 { 228 return pm_smbus_vmstate_needed(); 229 } 230 231 /* 232 * This is a fudge to turn off the acpi_index field, 233 * whose test was always broken on piix4 with 6.2 and older machine types. 234 */ 235 static bool vmstate_test_migrate_acpi_index(void *opaque, int version_id) 236 { 237 PIIX4PMState *s = PIIX4_PM(opaque); 238 return s->use_acpi_hotplug_bridge && !s->not_migrate_acpi_index; 239 } 240 241 /* qemu-kvm 1.2 uses version 3 but advertised as 2 242 * To support incoming qemu-kvm 1.2 migration, change version_id 243 * and minimum_version_id to 2 below (which breaks migration from 244 * qemu 1.2). 245 * 246 */ 247 static const VMStateDescription vmstate_acpi = { 248 .name = "piix4_pm", 249 .version_id = 3, 250 .minimum_version_id = 3, 251 .post_load = vmstate_acpi_post_load, 252 .fields = (VMStateField[]) { 253 VMSTATE_PCI_DEVICE(parent_obj, PIIX4PMState), 254 VMSTATE_UINT16(ar.pm1.evt.sts, PIIX4PMState), 255 VMSTATE_UINT16(ar.pm1.evt.en, PIIX4PMState), 256 VMSTATE_UINT16(ar.pm1.cnt.cnt, PIIX4PMState), 257 VMSTATE_STRUCT(apm, PIIX4PMState, 0, vmstate_apm, APMState), 258 VMSTATE_STRUCT_TEST(smb, PIIX4PMState, piix4_vmstate_need_smbus, 3, 259 pmsmb_vmstate, PMSMBus), 260 VMSTATE_TIMER_PTR(ar.tmr.timer, PIIX4PMState), 261 VMSTATE_INT64(ar.tmr.overflow_time, PIIX4PMState), 262 VMSTATE_STRUCT(ar.gpe, PIIX4PMState, 2, vmstate_gpe, ACPIGPE), 263 VMSTATE_STRUCT_TEST( 264 acpi_pci_hotplug.acpi_pcihp_pci_status[ACPI_PCIHP_BSEL_DEFAULT], 265 PIIX4PMState, 266 vmstate_test_no_use_acpi_hotplug_bridge, 267 2, vmstate_pci_status, 268 struct AcpiPciHpPciStatus), 269 VMSTATE_PCI_HOTPLUG(acpi_pci_hotplug, PIIX4PMState, 270 vmstate_test_use_acpi_hotplug_bridge, 271 vmstate_test_migrate_acpi_index), 272 VMSTATE_END_OF_LIST() 273 }, 274 .subsections = (const VMStateDescription*[]) { 275 &vmstate_memhp_state, 276 &vmstate_cpuhp_state, 277 NULL 278 } 279 }; 280 281 static void piix4_pm_reset(DeviceState *dev) 282 { 283 PIIX4PMState *s = PIIX4_PM(dev); 284 PCIDevice *d = PCI_DEVICE(s); 285 uint8_t *pci_conf = d->config; 286 287 pci_conf[0x58] = 0; 288 pci_conf[0x59] = 0; 289 pci_conf[0x5a] = 0; 290 pci_conf[0x5b] = 0; 291 292 pci_conf[0x40] = 0x01; /* PM io base read only bit */ 293 pci_conf[0x80] = 0; 294 295 if (!s->smm_enabled) { 296 /* Mark SMM as already inited (until KVM supports SMM). */ 297 pci_conf[0x5B] = 0x02; 298 } 299 300 acpi_pm1_evt_reset(&s->ar); 301 acpi_pm1_cnt_reset(&s->ar); 302 acpi_pm_tmr_reset(&s->ar); 303 acpi_gpe_reset(&s->ar); 304 acpi_update_sci(&s->ar, s->irq); 305 306 pm_io_space_update(s); 307 acpi_pcihp_reset(&s->acpi_pci_hotplug, !s->use_acpi_root_pci_hotplug); 308 } 309 310 static void piix4_pm_powerdown_req(Notifier *n, void *opaque) 311 { 312 PIIX4PMState *s = container_of(n, PIIX4PMState, powerdown_notifier); 313 314 assert(s != NULL); 315 acpi_pm1_evt_power_down(&s->ar); 316 } 317 318 static void piix4_device_pre_plug_cb(HotplugHandler *hotplug_dev, 319 DeviceState *dev, Error **errp) 320 { 321 PIIX4PMState *s = PIIX4_PM(hotplug_dev); 322 323 if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { 324 acpi_pcihp_device_pre_plug_cb(hotplug_dev, dev, errp); 325 } else if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 326 if (!s->acpi_memory_hotplug.is_enabled) { 327 error_setg(errp, 328 "memory hotplug is not enabled: %s.memory-hotplug-support " 329 "is not set", object_get_typename(OBJECT(s))); 330 } 331 } else if ( 332 !object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 333 error_setg(errp, "acpi: device pre plug request for not supported" 334 " device type: %s", object_get_typename(OBJECT(dev))); 335 } 336 } 337 338 static void piix4_device_plug_cb(HotplugHandler *hotplug_dev, 339 DeviceState *dev, Error **errp) 340 { 341 PIIX4PMState *s = PIIX4_PM(hotplug_dev); 342 343 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 344 if (object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)) { 345 nvdimm_acpi_plug_cb(hotplug_dev, dev); 346 } else { 347 acpi_memory_plug_cb(hotplug_dev, &s->acpi_memory_hotplug, 348 dev, errp); 349 } 350 } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { 351 acpi_pcihp_device_plug_cb(hotplug_dev, &s->acpi_pci_hotplug, dev, errp); 352 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 353 if (s->cpu_hotplug_legacy) { 354 legacy_acpi_cpu_plug_cb(hotplug_dev, &s->gpe_cpu, dev, errp); 355 } else { 356 acpi_cpu_plug_cb(hotplug_dev, &s->cpuhp_state, dev, errp); 357 } 358 } else { 359 g_assert_not_reached(); 360 } 361 } 362 363 static void piix4_device_unplug_request_cb(HotplugHandler *hotplug_dev, 364 DeviceState *dev, Error **errp) 365 { 366 PIIX4PMState *s = PIIX4_PM(hotplug_dev); 367 368 if (s->acpi_memory_hotplug.is_enabled && 369 object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 370 acpi_memory_unplug_request_cb(hotplug_dev, &s->acpi_memory_hotplug, 371 dev, errp); 372 } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { 373 acpi_pcihp_device_unplug_request_cb(hotplug_dev, &s->acpi_pci_hotplug, 374 dev, errp); 375 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU) && 376 !s->cpu_hotplug_legacy) { 377 acpi_cpu_unplug_request_cb(hotplug_dev, &s->cpuhp_state, dev, errp); 378 } else { 379 error_setg(errp, "acpi: device unplug request for not supported device" 380 " type: %s", object_get_typename(OBJECT(dev))); 381 } 382 } 383 384 static void piix4_device_unplug_cb(HotplugHandler *hotplug_dev, 385 DeviceState *dev, Error **errp) 386 { 387 PIIX4PMState *s = PIIX4_PM(hotplug_dev); 388 389 if (s->acpi_memory_hotplug.is_enabled && 390 object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 391 acpi_memory_unplug_cb(&s->acpi_memory_hotplug, dev, errp); 392 } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { 393 acpi_pcihp_device_unplug_cb(hotplug_dev, &s->acpi_pci_hotplug, dev, 394 errp); 395 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU) && 396 !s->cpu_hotplug_legacy) { 397 acpi_cpu_unplug_cb(&s->cpuhp_state, dev, errp); 398 } else { 399 error_setg(errp, "acpi: device unplug for not supported device" 400 " type: %s", object_get_typename(OBJECT(dev))); 401 } 402 } 403 404 static void piix4_pm_machine_ready(Notifier *n, void *opaque) 405 { 406 PIIX4PMState *s = container_of(n, PIIX4PMState, machine_ready); 407 PCIDevice *d = PCI_DEVICE(s); 408 MemoryRegion *io_as = pci_address_space_io(d); 409 uint8_t *pci_conf; 410 411 pci_conf = d->config; 412 pci_conf[0x5f] = 0x10 | 413 (memory_region_present(io_as, 0x378) ? 0x80 : 0); 414 pci_conf[0x63] = 0x60; 415 pci_conf[0x67] = (memory_region_present(io_as, 0x3f8) ? 0x08 : 0) | 416 (memory_region_present(io_as, 0x2f8) ? 0x90 : 0); 417 } 418 419 static void piix4_pm_add_properties(PIIX4PMState *s) 420 { 421 static const uint8_t acpi_enable_cmd = ACPI_ENABLE; 422 static const uint8_t acpi_disable_cmd = ACPI_DISABLE; 423 static const uint32_t gpe0_blk = GPE_BASE; 424 static const uint32_t gpe0_blk_len = GPE_LEN; 425 static const uint16_t sci_int = 9; 426 427 object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_ENABLE_CMD, 428 &acpi_enable_cmd, OBJ_PROP_FLAG_READ); 429 object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_DISABLE_CMD, 430 &acpi_disable_cmd, OBJ_PROP_FLAG_READ); 431 object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK, 432 &gpe0_blk, OBJ_PROP_FLAG_READ); 433 object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK_LEN, 434 &gpe0_blk_len, OBJ_PROP_FLAG_READ); 435 object_property_add_uint16_ptr(OBJECT(s), ACPI_PM_PROP_SCI_INT, 436 &sci_int, OBJ_PROP_FLAG_READ); 437 object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_PM_IO_BASE, 438 &s->io_base, OBJ_PROP_FLAG_READ); 439 } 440 441 static void piix4_pm_realize(PCIDevice *dev, Error **errp) 442 { 443 PIIX4PMState *s = PIIX4_PM(dev); 444 uint8_t *pci_conf; 445 446 pci_conf = dev->config; 447 pci_conf[0x06] = 0x80; 448 pci_conf[0x07] = 0x02; 449 pci_conf[0x09] = 0x00; 450 pci_conf[0x3d] = 0x01; // interrupt pin 1 451 452 /* APM */ 453 apm_init(dev, &s->apm, apm_ctrl_changed, s); 454 455 if (!s->smm_enabled) { 456 /* Mark SMM as already inited to prevent SMM from running. KVM does not 457 * support SMM mode. */ 458 pci_conf[0x5B] = 0x02; 459 } 460 461 /* XXX: which specification is used ? The i82731AB has different 462 mappings */ 463 pci_conf[0x90] = s->smb_io_base | 1; 464 pci_conf[0x91] = s->smb_io_base >> 8; 465 pci_conf[0xd2] = 0x09; 466 pm_smbus_init(DEVICE(dev), &s->smb, true); 467 memory_region_set_enabled(&s->smb.io, pci_conf[0xd2] & 1); 468 memory_region_add_subregion(pci_address_space_io(dev), 469 s->smb_io_base, &s->smb.io); 470 471 memory_region_init(&s->io, OBJECT(s), "piix4-pm", 64); 472 memory_region_set_enabled(&s->io, false); 473 memory_region_add_subregion(pci_address_space_io(dev), 474 0, &s->io); 475 476 acpi_pm_tmr_init(&s->ar, pm_tmr_timer, &s->io); 477 acpi_pm1_evt_init(&s->ar, pm_tmr_timer, &s->io); 478 acpi_pm1_cnt_init(&s->ar, &s->io, s->disable_s3, s->disable_s4, s->s4_val, 479 !s->smm_compat && !s->smm_enabled); 480 acpi_gpe_init(&s->ar, GPE_LEN); 481 482 s->powerdown_notifier.notify = piix4_pm_powerdown_req; 483 qemu_register_powerdown_notifier(&s->powerdown_notifier); 484 485 s->machine_ready.notify = piix4_pm_machine_ready; 486 qemu_add_machine_init_done_notifier(&s->machine_ready); 487 488 if (xen_enabled()) { 489 s->use_acpi_hotplug_bridge = false; 490 } 491 492 piix4_acpi_system_hot_add_init(pci_address_space_io(dev), 493 pci_get_bus(dev), s); 494 qbus_set_hotplug_handler(BUS(pci_get_bus(dev)), OBJECT(s)); 495 496 piix4_pm_add_properties(s); 497 } 498 499 static void piix4_pm_init(Object *obj) 500 { 501 PIIX4PMState *s = PIIX4_PM(obj); 502 503 qdev_init_gpio_out(DEVICE(obj), &s->irq, 1); 504 qdev_init_gpio_out_named(DEVICE(obj), &s->smi_irq, "smi-irq", 1); 505 } 506 507 static uint64_t gpe_readb(void *opaque, hwaddr addr, unsigned width) 508 { 509 PIIX4PMState *s = opaque; 510 uint32_t val = acpi_gpe_ioport_readb(&s->ar, addr); 511 512 trace_piix4_gpe_readb(addr, width, val); 513 return val; 514 } 515 516 static void gpe_writeb(void *opaque, hwaddr addr, uint64_t val, 517 unsigned width) 518 { 519 PIIX4PMState *s = opaque; 520 521 trace_piix4_gpe_writeb(addr, width, val); 522 acpi_gpe_ioport_writeb(&s->ar, addr, val); 523 acpi_update_sci(&s->ar, s->irq); 524 } 525 526 static const MemoryRegionOps piix4_gpe_ops = { 527 .read = gpe_readb, 528 .write = gpe_writeb, 529 .valid.min_access_size = 1, 530 .valid.max_access_size = 4, 531 .impl.min_access_size = 1, 532 .impl.max_access_size = 1, 533 .endianness = DEVICE_LITTLE_ENDIAN, 534 }; 535 536 537 static bool piix4_get_cpu_hotplug_legacy(Object *obj, Error **errp) 538 { 539 PIIX4PMState *s = PIIX4_PM(obj); 540 541 return s->cpu_hotplug_legacy; 542 } 543 544 static void piix4_set_cpu_hotplug_legacy(Object *obj, bool value, Error **errp) 545 { 546 PIIX4PMState *s = PIIX4_PM(obj); 547 548 assert(!value); 549 if (s->cpu_hotplug_legacy && value == false) { 550 acpi_switch_to_modern_cphp(&s->gpe_cpu, &s->cpuhp_state, 551 PIIX4_CPU_HOTPLUG_IO_BASE); 552 } 553 s->cpu_hotplug_legacy = value; 554 } 555 556 static void piix4_acpi_system_hot_add_init(MemoryRegion *parent, 557 PCIBus *bus, PIIX4PMState *s) 558 { 559 memory_region_init_io(&s->io_gpe, OBJECT(s), &piix4_gpe_ops, s, 560 "acpi-gpe0", GPE_LEN); 561 memory_region_add_subregion(parent, GPE_BASE, &s->io_gpe); 562 563 if (s->use_acpi_hotplug_bridge || s->use_acpi_root_pci_hotplug) { 564 acpi_pcihp_init(OBJECT(s), &s->acpi_pci_hotplug, bus, parent, 565 s->use_acpi_hotplug_bridge, ACPI_PCIHP_ADDR_PIIX4); 566 } 567 568 s->cpu_hotplug_legacy = true; 569 object_property_add_bool(OBJECT(s), "cpu-hotplug-legacy", 570 piix4_get_cpu_hotplug_legacy, 571 piix4_set_cpu_hotplug_legacy); 572 legacy_acpi_cpu_hotplug_init(parent, OBJECT(s), &s->gpe_cpu, 573 PIIX4_CPU_HOTPLUG_IO_BASE); 574 575 if (s->acpi_memory_hotplug.is_enabled) { 576 acpi_memory_hotplug_init(parent, OBJECT(s), &s->acpi_memory_hotplug, 577 ACPI_MEMORY_HOTPLUG_BASE); 578 } 579 } 580 581 static void piix4_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list) 582 { 583 PIIX4PMState *s = PIIX4_PM(adev); 584 585 acpi_memory_ospm_status(&s->acpi_memory_hotplug, list); 586 if (!s->cpu_hotplug_legacy) { 587 acpi_cpu_ospm_status(&s->cpuhp_state, list); 588 } 589 } 590 591 static void piix4_send_gpe(AcpiDeviceIf *adev, AcpiEventStatusBits ev) 592 { 593 PIIX4PMState *s = PIIX4_PM(adev); 594 595 acpi_send_gpe_event(&s->ar, s->irq, ev); 596 } 597 598 static Property piix4_pm_properties[] = { 599 DEFINE_PROP_UINT32("smb_io_base", PIIX4PMState, smb_io_base, 0), 600 DEFINE_PROP_UINT8(ACPI_PM_PROP_S3_DISABLED, PIIX4PMState, disable_s3, 0), 601 DEFINE_PROP_UINT8(ACPI_PM_PROP_S4_DISABLED, PIIX4PMState, disable_s4, 0), 602 DEFINE_PROP_UINT8(ACPI_PM_PROP_S4_VAL, PIIX4PMState, s4_val, 2), 603 DEFINE_PROP_BOOL(ACPI_PM_PROP_ACPI_PCIHP_BRIDGE, PIIX4PMState, 604 use_acpi_hotplug_bridge, true), 605 DEFINE_PROP_BOOL(ACPI_PM_PROP_ACPI_PCI_ROOTHP, PIIX4PMState, 606 use_acpi_root_pci_hotplug, true), 607 DEFINE_PROP_BOOL("memory-hotplug-support", PIIX4PMState, 608 acpi_memory_hotplug.is_enabled, true), 609 DEFINE_PROP_BOOL("smm-compat", PIIX4PMState, smm_compat, false), 610 DEFINE_PROP_BOOL("smm-enabled", PIIX4PMState, smm_enabled, false), 611 DEFINE_PROP_BOOL("x-not-migrate-acpi-index", PIIX4PMState, 612 not_migrate_acpi_index, false), 613 DEFINE_PROP_END_OF_LIST(), 614 }; 615 616 static void piix4_pm_class_init(ObjectClass *klass, void *data) 617 { 618 DeviceClass *dc = DEVICE_CLASS(klass); 619 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 620 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass); 621 AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_CLASS(klass); 622 623 k->realize = piix4_pm_realize; 624 k->config_write = pm_write_config; 625 k->vendor_id = PCI_VENDOR_ID_INTEL; 626 k->device_id = PCI_DEVICE_ID_INTEL_82371AB_3; 627 k->revision = 0x03; 628 k->class_id = PCI_CLASS_BRIDGE_OTHER; 629 dc->reset = piix4_pm_reset; 630 dc->desc = "PM"; 631 dc->vmsd = &vmstate_acpi; 632 device_class_set_props(dc, piix4_pm_properties); 633 /* 634 * Reason: part of PIIX4 southbridge, needs to be wired up, 635 * e.g. by mips_malta_init() 636 */ 637 dc->user_creatable = false; 638 dc->hotpluggable = false; 639 hc->pre_plug = piix4_device_pre_plug_cb; 640 hc->plug = piix4_device_plug_cb; 641 hc->unplug_request = piix4_device_unplug_request_cb; 642 hc->unplug = piix4_device_unplug_cb; 643 adevc->ospm_status = piix4_ospm_status; 644 adevc->send_event = piix4_send_gpe; 645 adevc->madt_cpu = pc_madt_cpu_entry; 646 } 647 648 static const TypeInfo piix4_pm_info = { 649 .name = TYPE_PIIX4_PM, 650 .parent = TYPE_PCI_DEVICE, 651 .instance_init = piix4_pm_init, 652 .instance_size = sizeof(PIIX4PMState), 653 .class_init = piix4_pm_class_init, 654 .interfaces = (InterfaceInfo[]) { 655 { TYPE_HOTPLUG_HANDLER }, 656 { TYPE_ACPI_DEVICE_IF }, 657 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 658 { } 659 } 660 }; 661 662 static void piix4_pm_register_types(void) 663 { 664 type_register_static(&piix4_pm_info); 665 } 666 667 type_init(piix4_pm_register_types) 668