MdePkg/Include/IndustryStandard/Acpi20.h

   1 /** @file
   2   ACPI 2.0 definitions from the ACPI Specification, revision 2.0
   3
   4   Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
   5   SPDX-License-Identifier: BSD-2-Clause-Patent
   6 **/
   7
   8 #ifndef _ACPI_2_0_H_
   9 #define _ACPI_2_0_H_
  10
  11 #include <IndustryStandard/Acpi10.h>
  12
  13 //
  14 // Define for Desriptor
  15 //
  16 #define ACPI_LARGE_GENERIC_REGISTER_DESCRIPTOR_NAME          0x02
  17
  18 #define ACPI_GENERIC_REGISTER_DESCRIPTOR          0x82
  19
  20 //
  21 // Ensure proper structure formats
  22 //
  23 #pragma pack(1)
  24
  25 ///
  26 /// Generic Register Descriptor
  27 ///
  28 typedef PACKED struct {
  29   ACPI_LARGE_RESOURCE_HEADER    Header;
  30   UINT8                         AddressSpaceId;
  31   UINT8                         RegisterBitWidth;
  32   UINT8                         RegisterBitOffset;
  33   UINT8                         AddressSize;
  34   UINT64                        RegisterAddress;
  35 } EFI_ACPI_GENERIC_REGISTER_DESCRIPTOR;
  36
  37 #pragma pack()
  38
  39 //
  40 // Ensure proper structure formats
  41 //
  42 #pragma pack(1)
  43
  44 ///
  45 /// ACPI 2.0 Generic Address Space definition
  46 ///
  47 typedef struct {
  48   UINT8   AddressSpaceId;
  49   UINT8   RegisterBitWidth;
  50   UINT8   RegisterBitOffset;
  51   UINT8   Reserved;
  52   UINT64  Address;
  53 } EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE;
  54
  55 //
  56 // Generic Address Space Address IDs
  57 //
  58 #define EFI_ACPI_2_0_SYSTEM_MEMORY              0
  59 #define EFI_ACPI_2_0_SYSTEM_IO                  1
  60 #define EFI_ACPI_2_0_PCI_CONFIGURATION_SPACE    2
  61 #define EFI_ACPI_2_0_EMBEDDED_CONTROLLER        3
  62 #define EFI_ACPI_2_0_SMBUS                      4
  63 #define EFI_ACPI_2_0_FUNCTIONAL_FIXED_HARDWARE  0x7F
  64
  65 //
  66 // ACPI 2.0 table structures
  67 //
  68
  69 ///
  70 /// Root System Description Pointer Structure
  71 ///
  72 typedef struct {
  73   UINT64  Signature;
  74   UINT8   Checksum;
  75   UINT8   OemId[6];
  76   UINT8   Revision;
  77   UINT32  RsdtAddress;
  78   UINT32  Length;
  79   UINT64  XsdtAddress;
  80   UINT8   ExtendedChecksum;
  81   UINT8   Reserved[3];
  82 } EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER;
  83
  84 ///
  85 /// RSD_PTR Revision (as defined in ACPI 2.0 spec.)
  86 ///
  87 #define EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER_REVISION 0x02
  88
  89 ///
  90 /// Common table header, this prefaces all ACPI tables, including FACS, but
  91 /// excluding the RSD PTR structure
  92 ///
  93 typedef struct {
  94   UINT32  Signature;
  95   UINT32  Length;
  96 } EFI_ACPI_2_0_COMMON_HEADER;
  97
  98 //
  99 // Root System Description Table
 100 // No definition needed as it is a common description table header, the same with
 101 // EFI_ACPI_DESCRIPTION_HEADER, followed by a variable number of UINT32 table pointers.
 102 //
 103
 104 ///
 105 /// RSDT Revision (as defined in ACPI 2.0 spec.)
 106 ///
 107 #define EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_TABLE_REVISION 0x01
 108
 109 //
 110 // Extended System Description Table
 111 // No definition needed as it is a common description table header, the same with
 112 // EFI_ACPI_DESCRIPTION_HEADER, followed by a variable number of UINT64 table pointers.
 113 //
 114
 115 ///
 116 /// XSDT Revision (as defined in ACPI 2.0 spec.)
 117 ///
 118 #define EFI_ACPI_2_0_EXTENDED_SYSTEM_DESCRIPTION_TABLE_REVISION 0x01
 119
 120 ///
 121 /// Fixed ACPI Description Table Structure (FADT)
 122 ///
 123 typedef struct {
 124   EFI_ACPI_DESCRIPTION_HEADER             Header;
 125   UINT32                                  FirmwareCtrl;
 126   UINT32                                  Dsdt;
 127   UINT8                                   Reserved0;
 128   UINT8                                   PreferredPmProfile;
 129   UINT16                                  SciInt;
 130   UINT32                                  SmiCmd;
 131   UINT8                                   AcpiEnable;
 132   UINT8                                   AcpiDisable;
 133   UINT8                                   S4BiosReq;
 134   UINT8                                   PstateCnt;
 135   UINT32                                  Pm1aEvtBlk;
 136   UINT32                                  Pm1bEvtBlk;
 137   UINT32                                  Pm1aCntBlk;
 138   UINT32                                  Pm1bCntBlk;
 139   UINT32                                  Pm2CntBlk;
 140   UINT32                                  PmTmrBlk;
 141   UINT32                                  Gpe0Blk;
 142   UINT32                                  Gpe1Blk;
 143   UINT8                                   Pm1EvtLen;
 144   UINT8                                   Pm1CntLen;
 145   UINT8                                   Pm2CntLen;
 146   UINT8                                   PmTmrLen;
 147   UINT8                                   Gpe0BlkLen;
 148   UINT8                                   Gpe1BlkLen;
 149   UINT8                                   Gpe1Base;
 150   UINT8                                   CstCnt;
 151   UINT16                                  PLvl2Lat;
 152   UINT16                                  PLvl3Lat;
 153   UINT16                                  FlushSize;
 154   UINT16                                  FlushStride;
 155   UINT8                                   DutyOffset;
 156   UINT8                                   DutyWidth;
 157   UINT8                                   DayAlrm;
 158   UINT8                                   MonAlrm;
 159   UINT8                                   Century;
 160   UINT16                                  IaPcBootArch;
 161   UINT8                                   Reserved1;
 162   UINT32                                  Flags;
 163   EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE  ResetReg;
 164   UINT8                                   ResetValue;
 165   UINT8                                   Reserved2[3];
 166   UINT64                                  XFirmwareCtrl;
 167   UINT64                                  XDsdt;
 168   EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE  XPm1aEvtBlk;
 169   EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE  XPm1bEvtBlk;
 170   EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE  XPm1aCntBlk;
 171   EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE  XPm1bCntBlk;
 172   EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE  XPm2CntBlk;
 173   EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE  XPmTmrBlk;
 174   EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE  XGpe0Blk;
 175   EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE  XGpe1Blk;
 176 } EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE;
 177
 178 ///
 179 /// FADT Version (as defined in ACPI 2.0 spec.)
 180 ///
 181 #define EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE_REVISION  0x03
 182
 183 //
 184 // Fixed ACPI Description Table Preferred Power Management Profile
 185 //
 186 #define EFI_ACPI_2_0_PM_PROFILE_UNSPECIFIED         0
 187 #define EFI_ACPI_2_0_PM_PROFILE_DESKTOP             1
 188 #define EFI_ACPI_2_0_PM_PROFILE_MOBILE              2
 189 #define EFI_ACPI_2_0_PM_PROFILE_WORKSTATION         3
 190 #define EFI_ACPI_2_0_PM_PROFILE_ENTERPRISE_SERVER   4
 191 #define EFI_ACPI_2_0_PM_PROFILE_SOHO_SERVER         5
 192 #define EFI_ACPI_2_0_PM_PROFILE_APPLIANCE_PC        6
 193
 194 //
 195 // Fixed ACPI Description Table Boot Architecture Flags
 196 // All other bits are reserved and must be set to 0.
 197 //
 198 #define EFI_ACPI_2_0_LEGACY_DEVICES          BIT0
 199 #define EFI_ACPI_2_0_8042                    BIT1
 200
 201 //
 202 // Fixed ACPI Description Table Fixed Feature Flags
 203 // All other bits are reserved and must be set to 0.
 204 //
 205 #define EFI_ACPI_2_0_WBINVD                  BIT0
 206 #define EFI_ACPI_2_0_WBINVD_FLUSH            BIT1
 207 #define EFI_ACPI_2_0_PROC_C1                 BIT2
 208 #define EFI_ACPI_2_0_P_LVL2_UP               BIT3
 209 #define EFI_ACPI_2_0_PWR_BUTTON              BIT4
 210 #define EFI_ACPI_2_0_SLP_BUTTON              BIT5
 211 #define EFI_ACPI_2_0_FIX_RTC                 BIT6
 212 #define EFI_ACPI_2_0_RTC_S4                  BIT7
 213 #define EFI_ACPI_2_0_TMR_VAL_EXT             BIT8
 214 #define EFI_ACPI_2_0_DCK_CAP                 BIT9
 215 #define EFI_ACPI_2_0_RESET_REG_SUP           BIT10
 216 #define EFI_ACPI_2_0_SEALED_CASE             BIT11
 217 #define EFI_ACPI_2_0_HEADLESS                BIT12
 218 #define EFI_ACPI_2_0_CPU_SW_SLP              BIT13
 219
 220 ///
 221 /// Firmware ACPI Control Structure
 222 ///
 223 typedef struct {
 224   UINT32  Signature;
 225   UINT32  Length;
 226   UINT32  HardwareSignature;
 227   UINT32  FirmwareWakingVector;
 228   UINT32  GlobalLock;
 229   UINT32  Flags;
 230   UINT64  XFirmwareWakingVector;
 231   UINT8   Version;
 232   UINT8   Reserved[31];
 233 } EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE;
 234
 235 ///
 236 /// FACS Version (as defined in ACPI 2.0 spec.)
 237 ///
 238 #define EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_VERSION  0x01
 239
 240 ///
 241 /// Firmware Control Structure Feature Flags
 242 /// All other bits are reserved and must be set to 0.
 243 ///
 244 #define EFI_ACPI_2_0_S4BIOS_F        BIT0
 245
 246 ///
 247 /// Multiple APIC Description Table header definition.  The rest of the table
 248 /// must be defined in a platform specific manner.
 249 ///
 250 typedef struct {
 251   EFI_ACPI_DESCRIPTION_HEADER Header;
 252   UINT32                      LocalApicAddress;
 253   UINT32                      Flags;
 254 } EFI_ACPI_2_0_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER;
 255
 256 ///
 257 /// MADT Revision (as defined in ACPI 2.0 spec.)
 258 ///
 259 #define EFI_ACPI_2_0_MULTIPLE_APIC_DESCRIPTION_TABLE_REVISION 0x01
 260
 261 ///
 262 /// Multiple APIC Flags
 263 /// All other bits are reserved and must be set to 0.
 264 ///
 265 #define EFI_ACPI_2_0_PCAT_COMPAT          BIT0
 266
 267 //
 268 // Multiple APIC Description Table APIC structure types
 269 // All other values between 0x09 an 0xFF are reserved and
 270 // will be ignored by OSPM.
 271 //
 272 #define EFI_ACPI_2_0_PROCESSOR_LOCAL_APIC           0x00
 273 #define EFI_ACPI_2_0_IO_APIC                        0x01
 274 #define EFI_ACPI_2_0_INTERRUPT_SOURCE_OVERRIDE      0x02
 275 #define EFI_ACPI_2_0_NON_MASKABLE_INTERRUPT_SOURCE  0x03
 276 #define EFI_ACPI_2_0_LOCAL_APIC_NMI                 0x04
 277 #define EFI_ACPI_2_0_LOCAL_APIC_ADDRESS_OVERRIDE    0x05
 278 #define EFI_ACPI_2_0_IO_SAPIC                       0x06
 279 #define EFI_ACPI_2_0_PROCESSOR_LOCAL_SAPIC          0x07
 280 #define EFI_ACPI_2_0_PLATFORM_INTERRUPT_SOURCES     0x08
 281
 282 //
 283 // APIC Structure Definitions
 284 //
 285
 286 ///
 287 /// Processor Local APIC Structure Definition
 288 ///
 289 typedef struct {
 290   UINT8   Type;
 291   UINT8   Length;
 292   UINT8   AcpiProcessorId;
 293   UINT8   ApicId;
 294   UINT32  Flags;
 295 } EFI_ACPI_2_0_PROCESSOR_LOCAL_APIC_STRUCTURE;
 296
 297 ///
 298 /// Local APIC Flags.  All other bits are reserved and must be 0.
 299 ///
 300 #define EFI_ACPI_2_0_LOCAL_APIC_ENABLED         BIT0
 301
 302 ///
 303 /// IO APIC Structure
 304 ///
 305 typedef struct {
 306   UINT8   Type;
 307   UINT8   Length;
 308   UINT8   IoApicId;
 309   UINT8   Reserved;
 310   UINT32  IoApicAddress;
 311   UINT32  GlobalSystemInterruptBase;
 312 } EFI_ACPI_2_0_IO_APIC_STRUCTURE;
 313
 314 ///
 315 /// Interrupt Source Override Structure
 316 ///
 317 typedef struct {
 318   UINT8   Type;
 319   UINT8   Length;
 320   UINT8   Bus;
 321   UINT8   Source;
 322   UINT32  GlobalSystemInterrupt;
 323   UINT16  Flags;
 324 } EFI_ACPI_2_0_INTERRUPT_SOURCE_OVERRIDE_STRUCTURE;
 325
 326 ///
 327 /// Non-Maskable Interrupt Source Structure
 328 ///
 329 typedef struct {
 330   UINT8   Type;
 331   UINT8   Length;
 332   UINT16  Flags;
 333   UINT32  GlobalSystemInterrupt;
 334 } EFI_ACPI_2_0_NON_MASKABLE_INTERRUPT_SOURCE_STRUCTURE;
 335
 336 ///
 337 /// Local APIC NMI Structure
 338 ///
 339 typedef struct {
 340   UINT8   Type;
 341   UINT8   Length;
 342   UINT8   AcpiProcessorId;
 343   UINT16  Flags;
 344   UINT8   LocalApicLint;
 345 } EFI_ACPI_2_0_LOCAL_APIC_NMI_STRUCTURE;
 346
 347 ///
 348 /// Local APIC Address Override Structure
 349 ///
 350 typedef struct {
 351   UINT8   Type;
 352   UINT8   Length;
 353   UINT16  Reserved;
 354   UINT64  LocalApicAddress;
 355 } EFI_ACPI_2_0_LOCAL_APIC_ADDRESS_OVERRIDE_STRUCTURE;
 356
 357 ///
 358 /// IO SAPIC Structure
 359 ///
 360 typedef struct {
 361   UINT8   Type;
 362   UINT8   Length;
 363   UINT8   IoApicId;
 364   UINT8   Reserved;
 365   UINT32  GlobalSystemInterruptBase;
 366   UINT64  IoSapicAddress;
 367 } EFI_ACPI_2_0_IO_SAPIC_STRUCTURE;
 368
 369 ///
 370 /// Local SAPIC Structure
 371 ///
 372 typedef struct {
 373   UINT8   Type;
 374   UINT8   Length;
 375   UINT8   AcpiProcessorId;
 376   UINT8   LocalSapicId;
 377   UINT8   LocalSapicEid;
 378   UINT8   Reserved[3];
 379   UINT32  Flags;
 380 } EFI_ACPI_2_0_PROCESSOR_LOCAL_SAPIC_STRUCTURE;
 381
 382 ///
 383 /// Platform Interrupt Sources Structure
 384 ///
 385 typedef struct {
 386   UINT8   Type;
 387   UINT8   Length;
 388   UINT16  Flags;
 389   UINT8   InterruptType;
 390   UINT8   ProcessorId;
 391   UINT8   ProcessorEid;
 392   UINT8   IoSapicVector;
 393   UINT32  GlobalSystemInterrupt;
 394   UINT32  Reserved;
 395 } EFI_ACPI_2_0_PLATFORM_INTERRUPT_SOURCES_STRUCTURE;
 396
 397 ///
 398 /// Smart Battery Description Table (SBST)
 399 ///
 400 typedef struct {
 401   EFI_ACPI_DESCRIPTION_HEADER Header;
 402   UINT32                      WarningEnergyLevel;
 403   UINT32                      LowEnergyLevel;
 404   UINT32                      CriticalEnergyLevel;
 405 } EFI_ACPI_2_0_SMART_BATTERY_DESCRIPTION_TABLE;
 406
 407 ///
 408 /// SBST Version (as defined in ACPI 2.0 spec.)
 409 ///
 410 #define EFI_ACPI_2_0_SMART_BATTERY_DESCRIPTION_TABLE_REVISION 0x01
 411
 412 ///
 413 /// Embedded Controller Boot Resources Table (ECDT)
 414 /// The table is followed by a null terminated ASCII string that contains
 415 /// a fully qualified reference to the name space object.
 416 ///
 417 typedef struct {
 418   EFI_ACPI_DESCRIPTION_HEADER             Header;
 419   EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE  EcControl;
 420   EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE  EcData;
 421   UINT32                                  Uid;
 422   UINT8                                   GpeBit;
 423 } EFI_ACPI_2_0_EMBEDDED_CONTROLLER_BOOT_RESOURCES_TABLE;
 424
 425 ///
 426 /// ECDT Version (as defined in ACPI 2.0 spec.)
 427 ///
 428 #define EFI_ACPI_2_0_EMBEDDED_CONTROLLER_BOOT_RESOURCES_TABLE_REVISION  0x01
 429
 430 //
 431 // Known table signatures
 432 //
 433
 434 ///
 435 /// "RSD PTR " Root System Description Pointer
 436 ///
 437 #define EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER_SIGNATURE  SIGNATURE_64('R', 'S', 'D', ' ', 'P', 'T', 'R', ' ')
 438
 439 ///
 440 /// "SPIC" Multiple SAPIC Description Table
 441 ///
 442 /// BUGBUG: Don't know where this came from except SR870BN4 uses it.
 443 /// #define EFI_ACPI_2_0_MULTIPLE_SAPIC_DESCRIPTION_TABLE_SIGNATURE 0x43495053
 444 ///
 445 #define EFI_ACPI_2_0_MULTIPLE_SAPIC_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('A', 'P', 'I', 'C')
 446
 447 ///
 448 /// "BOOT" MS Simple Boot Spec
 449 ///
 450 #define EFI_ACPI_2_0_SIMPLE_BOOT_FLAG_TABLE_SIGNATURE  SIGNATURE_32('B', 'O', 'O', 'T')
 451
 452 ///
 453 /// "DBGP" MS Bebug Port Spec
 454 ///
 455 #define EFI_ACPI_2_0_DEBUG_PORT_TABLE_SIGNATURE  SIGNATURE_32('D', 'B', 'G', 'P')
 456
 457 ///
 458 /// "DSDT" Differentiated System Description Table
 459 ///
 460 #define EFI_ACPI_2_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('D', 'S', 'D', 'T')
 461
 462 ///
 463 /// "ECDT" Embedded Controller Boot Resources Table
 464 ///
 465 #define EFI_ACPI_2_0_EMBEDDED_CONTROLLER_BOOT_RESOURCES_TABLE_SIGNATURE  SIGNATURE_32('E', 'C', 'D', 'T')
 466
 467 ///
 468 /// "ETDT" Event Timer Description Table
 469 ///
 470 #define EFI_ACPI_2_0_EVENT_TIMER_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('E', 'T', 'D', 'T')
 471
 472 ///
 473 /// "FACS" Firmware ACPI Control Structure
 474 ///
 475 #define EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE  SIGNATURE_32('F', 'A', 'C', 'S')
 476
 477 ///
 478 /// "FACP" Fixed ACPI Description Table
 479 ///
 480 #define EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('F', 'A', 'C', 'P')
 481
 482 ///
 483 /// "APIC" Multiple APIC Description Table
 484 ///
 485 #define EFI_ACPI_2_0_MULTIPLE_APIC_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('A', 'P', 'I', 'C')
 486
 487 ///
 488 /// "PSDT" Persistent System Description Table
 489 ///
 490 #define EFI_ACPI_2_0_PERSISTENT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('P', 'S', 'D', 'T')
 491
 492 ///
 493 /// "RSDT" Root System Description Table
 494 ///
 495 #define EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('R', 'S', 'D', 'T')
 496
 497 ///
 498 /// "SBST" Smart Battery Specification Table
 499 ///
 500 #define EFI_ACPI_2_0_SMART_BATTERY_SPECIFICATION_TABLE_SIGNATURE  SIGNATURE_32('S', 'B', 'S', 'T')
 501
 502 ///
 503 /// "SLIT" System Locality Information Table
 504 ///
 505 #define EFI_ACPI_2_0_SYSTEM_LOCALITY_INFORMATION_TABLE_SIGNATURE  SIGNATURE_32('S', 'L', 'I', 'T')
 506
 507 ///
 508 /// "SPCR" Serial Port Concole Redirection Table
 509 ///
 510 #define EFI_ACPI_2_0_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_SIGNATURE  SIGNATURE_32('S', 'P', 'C', 'R')
 511
 512 ///
 513 /// "SRAT" Static Resource Affinity Table
 514 ///
 515 #define EFI_ACPI_2_0_STATIC_RESOURCE_AFFINITY_TABLE_SIGNATURE  SIGNATURE_32('S', 'R', 'A', 'T')
 516
 517 ///
 518 /// "SSDT" Secondary System Description Table
 519 ///
 520 #define EFI_ACPI_2_0_SECONDARY_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('S', 'S', 'D', 'T')
 521
 522 ///
 523 /// "SPMI" Server Platform Management Interface Table
 524 ///
 525 #define EFI_ACPI_2_0_SERVER_PLATFORM_MANAGEMENT_INTERFACE_SIGNATURE  SIGNATURE_32('S', 'P', 'M', 'I')
 526
 527 ///
 528 /// "XSDT" Extended System Description Table
 529 ///
 530 #define EFI_ACPI_2_0_EXTENDED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('X', 'S', 'D', 'T')
 531
 532 ///
 533 /// "MCFG" PCI Express Memory Mapped Configuration Space Base Address Description Table
 534 ///
 535 #define EFI_ACPI_2_0_MEMORY_MAPPED_CONFIGURATION_BASE_ADDRESS_TABLE_SIGNATURE  SIGNATURE_32('M', 'C', 'F', 'G')
 536
 537 #pragma pack()
 538
 539 #endif