/** @file
  ACPI 6.4 definitions from the ACPI Specification Revision 6.4 Jan, 2021.

  Copyright (c) 2017 - 2022, Intel Corporation. All rights reserved.<BR>
  Copyright (c) 2019 - 2021, ARM Ltd. All rights reserved.<BR>

  SPDX-License-Identifier: BSD-2-Clause-Patent
**/

#ifndef ACPI_6_4_H_
#define ACPI_6_4_H_

#include <IndustryStandard/Acpi63.h>

//
// Ensure proper structure formats
//
#pragma pack(1)

///
/// ACPI 6.4 Generic Address Space definition
///
typedef struct {
  UINT8     AddressSpaceId;
  UINT8     RegisterBitWidth;
  UINT8     RegisterBitOffset;
  UINT8     AccessSize;
  UINT64    Address;
} EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE;

//
// Generic Address Space Address IDs
//
#define EFI_ACPI_6_4_SYSTEM_MEMORY                   0x00
#define EFI_ACPI_6_4_SYSTEM_IO                       0x01
#define EFI_ACPI_6_4_PCI_CONFIGURATION_SPACE         0x02
#define EFI_ACPI_6_4_EMBEDDED_CONTROLLER             0x03
#define EFI_ACPI_6_4_SMBUS                           0x04
#define EFI_ACPI_6_4_SYSTEM_CMOS                     0x05
#define EFI_ACPI_6_4_PCI_BAR_TARGET                  0x06
#define EFI_ACPI_6_4_IPMI                            0x07
#define EFI_ACPI_6_4_GENERAL_PURPOSE_IO              0x08
#define EFI_ACPI_6_4_GENERIC_SERIAL_BUS              0x09
#define EFI_ACPI_6_4_PLATFORM_COMMUNICATION_CHANNEL  0x0A
#define EFI_ACPI_6_4_FUNCTIONAL_FIXED_HARDWARE       0x7F

//
// Generic Address Space Access Sizes
//
#define EFI_ACPI_6_4_UNDEFINED  0
#define EFI_ACPI_6_4_BYTE       1
#define EFI_ACPI_6_4_WORD       2
#define EFI_ACPI_6_4_DWORD      3
#define EFI_ACPI_6_4_QWORD      4

//
// ACPI 6.4 table structures
//

///
/// Root System Description Pointer Structure
///
typedef struct {
  UINT64    Signature;
  UINT8     Checksum;
  UINT8     OemId[6];
  UINT8     Revision;
  UINT32    RsdtAddress;
  UINT32    Length;
  UINT64    XsdtAddress;
  UINT8     ExtendedChecksum;
  UINT8     Reserved[3];
} EFI_ACPI_6_4_ROOT_SYSTEM_DESCRIPTION_POINTER;

///
/// RSD_PTR Revision (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_ROOT_SYSTEM_DESCRIPTION_POINTER_REVISION  0x02 ///< ACPISpec (Revision 6.4) says current value is 2

///
/// Common table header, this prefaces all ACPI tables, including FACS, but
/// excluding the RSD PTR structure
///
typedef struct {
  UINT32    Signature;
  UINT32    Length;
} EFI_ACPI_6_4_COMMON_HEADER;

//
// Root System Description Table
// No definition needed as it is a common description table header, the same with
// EFI_ACPI_DESCRIPTION_HEADER, followed by a variable number of UINT32 table pointers.
//

///
/// RSDT Revision (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_ROOT_SYSTEM_DESCRIPTION_TABLE_REVISION  0x01

//
// Extended System Description Table
// No definition needed as it is a common description table header, the same with
// EFI_ACPI_DESCRIPTION_HEADER, followed by a variable number of UINT64 table pointers.
//

///
/// XSDT Revision (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_EXTENDED_SYSTEM_DESCRIPTION_TABLE_REVISION  0x01

///
/// Fixed ACPI Description Table Structure (FADT)
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER               Header;
  UINT32                                    FirmwareCtrl;
  UINT32                                    Dsdt;
  UINT8                                     Reserved0;
  UINT8                                     PreferredPmProfile;
  UINT16                                    SciInt;
  UINT32                                    SmiCmd;
  UINT8                                     AcpiEnable;
  UINT8                                     AcpiDisable;
  UINT8                                     S4BiosReq;
  UINT8                                     PstateCnt;
  UINT32                                    Pm1aEvtBlk;
  UINT32                                    Pm1bEvtBlk;
  UINT32                                    Pm1aCntBlk;
  UINT32                                    Pm1bCntBlk;
  UINT32                                    Pm2CntBlk;
  UINT32                                    PmTmrBlk;
  UINT32                                    Gpe0Blk;
  UINT32                                    Gpe1Blk;
  UINT8                                     Pm1EvtLen;
  UINT8                                     Pm1CntLen;
  UINT8                                     Pm2CntLen;
  UINT8                                     PmTmrLen;
  UINT8                                     Gpe0BlkLen;
  UINT8                                     Gpe1BlkLen;
  UINT8                                     Gpe1Base;
  UINT8                                     CstCnt;
  UINT16                                    PLvl2Lat;
  UINT16                                    PLvl3Lat;
  UINT16                                    FlushSize;
  UINT16                                    FlushStride;
  UINT8                                     DutyOffset;
  UINT8                                     DutyWidth;
  UINT8                                     DayAlrm;
  UINT8                                     MonAlrm;
  UINT8                                     Century;
  UINT16                                    IaPcBootArch;
  UINT8                                     Reserved1;
  UINT32                                    Flags;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    ResetReg;
  UINT8                                     ResetValue;
  UINT16                                    ArmBootArch;
  UINT8                                     MinorVersion;
  UINT64                                    XFirmwareCtrl;
  UINT64                                    XDsdt;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    XPm1aEvtBlk;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    XPm1bEvtBlk;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    XPm1aCntBlk;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    XPm1bCntBlk;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    XPm2CntBlk;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    XPmTmrBlk;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    XGpe0Blk;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    XGpe1Blk;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    SleepControlReg;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    SleepStatusReg;
  UINT64                                    HypervisorVendorIdentity;
} EFI_ACPI_6_4_FIXED_ACPI_DESCRIPTION_TABLE;

///
/// FADT Version (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_FIXED_ACPI_DESCRIPTION_TABLE_REVISION        0x06
#define EFI_ACPI_6_4_FIXED_ACPI_DESCRIPTION_TABLE_MINOR_REVISION  0x04

//
// Fixed ACPI Description Table Preferred Power Management Profile
//
#define EFI_ACPI_6_4_PM_PROFILE_UNSPECIFIED         0
#define EFI_ACPI_6_4_PM_PROFILE_DESKTOP             1
#define EFI_ACPI_6_4_PM_PROFILE_MOBILE              2
#define EFI_ACPI_6_4_PM_PROFILE_WORKSTATION         3
#define EFI_ACPI_6_4_PM_PROFILE_ENTERPRISE_SERVER   4
#define EFI_ACPI_6_4_PM_PROFILE_SOHO_SERVER         5
#define EFI_ACPI_6_4_PM_PROFILE_APPLIANCE_PC        6
#define EFI_ACPI_6_4_PM_PROFILE_PERFORMANCE_SERVER  7
#define EFI_ACPI_6_4_PM_PROFILE_TABLET              8

//
// Fixed ACPI Description Table Boot Architecture Flags
// All other bits are reserved and must be set to 0.
//
#define EFI_ACPI_6_4_LEGACY_DEVICES        BIT0
#define EFI_ACPI_6_4_8042                  BIT1
#define EFI_ACPI_6_4_VGA_NOT_PRESENT       BIT2
#define EFI_ACPI_6_4_MSI_NOT_SUPPORTED     BIT3
#define EFI_ACPI_6_4_PCIE_ASPM_CONTROLS    BIT4
#define EFI_ACPI_6_4_CMOS_RTC_NOT_PRESENT  BIT5

//
// Fixed ACPI Description Table Arm Boot Architecture Flags
// All other bits are reserved and must be set to 0.
//
#define EFI_ACPI_6_4_ARM_PSCI_COMPLIANT  BIT0
#define EFI_ACPI_6_4_ARM_PSCI_USE_HVC    BIT1

//
// Fixed ACPI Description Table Fixed Feature Flags
// All other bits are reserved and must be set to 0.
//
#define EFI_ACPI_6_4_WBINVD                                BIT0
#define EFI_ACPI_6_4_WBINVD_FLUSH                          BIT1
#define EFI_ACPI_6_4_PROC_C1                               BIT2
#define EFI_ACPI_6_4_P_LVL2_UP                             BIT3
#define EFI_ACPI_6_4_PWR_BUTTON                            BIT4
#define EFI_ACPI_6_4_SLP_BUTTON                            BIT5
#define EFI_ACPI_6_4_FIX_RTC                               BIT6
#define EFI_ACPI_6_4_RTC_S4                                BIT7
#define EFI_ACPI_6_4_TMR_VAL_EXT                           BIT8
#define EFI_ACPI_6_4_DCK_CAP                               BIT9
#define EFI_ACPI_6_4_RESET_REG_SUP                         BIT10
#define EFI_ACPI_6_4_SEALED_CASE                           BIT11
#define EFI_ACPI_6_4_HEADLESS                              BIT12
#define EFI_ACPI_6_4_CPU_SW_SLP                            BIT13
#define EFI_ACPI_6_4_PCI_EXP_WAK                           BIT14
#define EFI_ACPI_6_4_USE_PLATFORM_CLOCK                    BIT15
#define EFI_ACPI_6_4_S4_RTC_STS_VALID                      BIT16
#define EFI_ACPI_6_4_REMOTE_POWER_ON_CAPABLE               BIT17
#define EFI_ACPI_6_4_FORCE_APIC_CLUSTER_MODEL              BIT18
#define EFI_ACPI_6_4_FORCE_APIC_PHYSICAL_DESTINATION_MODE  BIT19
#define EFI_ACPI_6_4_HW_REDUCED_ACPI                       BIT20
#define EFI_ACPI_6_4_LOW_POWER_S0_IDLE_CAPABLE             BIT21

///
/// Firmware ACPI Control Structure
///
typedef struct {
  UINT32    Signature;
  UINT32    Length;
  UINT32    HardwareSignature;
  UINT32    FirmwareWakingVector;
  UINT32    GlobalLock;
  UINT32    Flags;
  UINT64    XFirmwareWakingVector;
  UINT8     Version;
  UINT8     Reserved0[3];
  UINT32    OspmFlags;
  UINT8     Reserved1[24];
} EFI_ACPI_6_4_FIRMWARE_ACPI_CONTROL_STRUCTURE;

///
/// FACS Version (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_FIRMWARE_ACPI_CONTROL_STRUCTURE_VERSION  0x02

///
/// Firmware Control Structure Feature Flags
/// All other bits are reserved and must be set to 0.
///
#define EFI_ACPI_6_4_S4BIOS_F                BIT0
#define EFI_ACPI_6_4_64BIT_WAKE_SUPPORTED_F  BIT1

///
/// OSPM Enabled Firmware Control Structure Flags
/// All other bits are reserved and must be set to 0.
///
#define EFI_ACPI_6_4_OSPM_64BIT_WAKE_F  BIT0

//
// Differentiated System Description Table,
// Secondary System Description Table
// and Persistent System Description Table,
// no definition needed as they are common description table header, the same with
// EFI_ACPI_DESCRIPTION_HEADER, followed by a definition block.
//
#define EFI_ACPI_6_4_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_REVISION  0x02
#define EFI_ACPI_6_4_SECONDARY_SYSTEM_DESCRIPTION_TABLE_REVISION       0x02

///
/// Multiple APIC Description Table header definition.  The rest of the table
/// must be defined in a platform specific manner.
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT32                         LocalApicAddress;
  UINT32                         Flags;
} EFI_ACPI_6_4_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER;

///
/// MADT Revision (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_MULTIPLE_APIC_DESCRIPTION_TABLE_REVISION  0x05

///
/// Multiple APIC Flags
/// All other bits are reserved and must be set to 0.
///
#define EFI_ACPI_6_4_PCAT_COMPAT  BIT0

//
// Multiple APIC Description Table APIC structure types
// All other values between 0x10 and 0x7F are reserved and
// will be ignored by OSPM. 0x80 ~ 0xFF are reserved for OEM.
//
#define EFI_ACPI_6_4_PROCESSOR_LOCAL_APIC           0x00
#define EFI_ACPI_6_4_IO_APIC                        0x01
#define EFI_ACPI_6_4_INTERRUPT_SOURCE_OVERRIDE      0x02
#define EFI_ACPI_6_4_NON_MASKABLE_INTERRUPT_SOURCE  0x03
#define EFI_ACPI_6_4_LOCAL_APIC_NMI                 0x04
#define EFI_ACPI_6_4_LOCAL_APIC_ADDRESS_OVERRIDE    0x05
#define EFI_ACPI_6_4_IO_SAPIC                       0x06
#define EFI_ACPI_6_4_LOCAL_SAPIC                    0x07
#define EFI_ACPI_6_4_PLATFORM_INTERRUPT_SOURCES     0x08
#define EFI_ACPI_6_4_PROCESSOR_LOCAL_X2APIC         0x09
#define EFI_ACPI_6_4_LOCAL_X2APIC_NMI               0x0A
#define EFI_ACPI_6_4_GIC                            0x0B
#define EFI_ACPI_6_4_GICD                           0x0C
#define EFI_ACPI_6_4_GIC_MSI_FRAME                  0x0D
#define EFI_ACPI_6_4_GICR                           0x0E
#define EFI_ACPI_6_4_GIC_ITS                        0x0F
#define EFI_ACPI_6_4_MULTIPROCESSOR_WAKEUP          0x10

//
// APIC Structure Definitions
//

///
/// Processor Local APIC Structure Definition
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT8     AcpiProcessorUid;
  UINT8     ApicId;
  UINT32    Flags;
} EFI_ACPI_6_4_PROCESSOR_LOCAL_APIC_STRUCTURE;

///
/// Local APIC Flags.  All other bits are reserved and must be 0.
///
#define EFI_ACPI_6_4_LOCAL_APIC_ENABLED         BIT0
#define EFI_ACPI_6_4_LOCAL_APIC_ONLINE_CAPABLE  BIT1

///
/// IO APIC Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT8     IoApicId;
  UINT8     Reserved;
  UINT32    IoApicAddress;
  UINT32    GlobalSystemInterruptBase;
} EFI_ACPI_6_4_IO_APIC_STRUCTURE;

///
/// Interrupt Source Override Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT8     Bus;
  UINT8     Source;
  UINT32    GlobalSystemInterrupt;
  UINT16    Flags;
} EFI_ACPI_6_4_INTERRUPT_SOURCE_OVERRIDE_STRUCTURE;

///
/// Platform Interrupt Sources Structure Definition
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT16    Flags;
  UINT8     InterruptType;
  UINT8     ProcessorId;
  UINT8     ProcessorEid;
  UINT8     IoSapicVector;
  UINT32    GlobalSystemInterrupt;
  UINT32    PlatformInterruptSourceFlags;
  UINT8     CpeiProcessorOverride;
  UINT8     Reserved[31];
} EFI_ACPI_6_4_PLATFORM_INTERRUPT_APIC_STRUCTURE;

//
// MPS INTI flags.
// All other bits are reserved and must be set to 0.
//
#define EFI_ACPI_6_4_POLARITY      (3 << 0)
#define EFI_ACPI_6_4_TRIGGER_MODE  (3 << 2)

///
/// Non-Maskable Interrupt Source Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT16    Flags;
  UINT32    GlobalSystemInterrupt;
} EFI_ACPI_6_4_NON_MASKABLE_INTERRUPT_SOURCE_STRUCTURE;

///
/// Local APIC NMI Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT8     AcpiProcessorUid;
  UINT16    Flags;
  UINT8     LocalApicLint;
} EFI_ACPI_6_4_LOCAL_APIC_NMI_STRUCTURE;

///
/// Local APIC Address Override Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT16    Reserved;
  UINT64    LocalApicAddress;
} EFI_ACPI_6_4_LOCAL_APIC_ADDRESS_OVERRIDE_STRUCTURE;

///
/// IO SAPIC Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT8     IoApicId;
  UINT8     Reserved;
  UINT32    GlobalSystemInterruptBase;
  UINT64    IoSapicAddress;
} EFI_ACPI_6_4_IO_SAPIC_STRUCTURE;

///
/// Local SAPIC Structure
/// This struct followed by a null-terminated ASCII string - ACPI Processor UID String
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT8     AcpiProcessorId;
  UINT8     LocalSapicId;
  UINT8     LocalSapicEid;
  UINT8     Reserved[3];
  UINT32    Flags;
  UINT32    ACPIProcessorUIDValue;
} EFI_ACPI_6_4_PROCESSOR_LOCAL_SAPIC_STRUCTURE;

///
/// Platform Interrupt Sources Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT16    Flags;
  UINT8     InterruptType;
  UINT8     ProcessorId;
  UINT8     ProcessorEid;
  UINT8     IoSapicVector;
  UINT32    GlobalSystemInterrupt;
  UINT32    PlatformInterruptSourceFlags;
} EFI_ACPI_6_4_PLATFORM_INTERRUPT_SOURCES_STRUCTURE;

///
/// Platform Interrupt Source Flags.
/// All other bits are reserved and must be set to 0.
///
#define EFI_ACPI_6_4_CPEI_PROCESSOR_OVERRIDE  BIT0

///
/// Processor Local x2APIC Structure Definition
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT8     Reserved[2];
  UINT32    X2ApicId;
  UINT32    Flags;
  UINT32    AcpiProcessorUid;
} EFI_ACPI_6_4_PROCESSOR_LOCAL_X2APIC_STRUCTURE;

///
/// Local x2APIC NMI Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT16    Flags;
  UINT32    AcpiProcessorUid;
  UINT8     LocalX2ApicLint;
  UINT8     Reserved[3];
} EFI_ACPI_6_4_LOCAL_X2APIC_NMI_STRUCTURE;

///
/// GIC Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT16    Reserved;
  UINT32    CPUInterfaceNumber;
  UINT32    AcpiProcessorUid;
  UINT32    Flags;
  UINT32    ParkingProtocolVersion;
  UINT32    PerformanceInterruptGsiv;
  UINT64    ParkedAddress;
  UINT64    PhysicalBaseAddress;
  UINT64    GICV;
  UINT64    GICH;
  UINT32    VGICMaintenanceInterrupt;
  UINT64    GICRBaseAddress;
  UINT64    MPIDR;
  UINT8     ProcessorPowerEfficiencyClass;
  UINT8     Reserved2;
  UINT16    SpeOverflowInterrupt;
} EFI_ACPI_6_4_GIC_STRUCTURE;

///
/// GIC Flags.  All other bits are reserved and must be 0.
///
#define EFI_ACPI_6_4_GIC_ENABLED                            BIT0
#define EFI_ACPI_6_4_PERFORMANCE_INTERRUPT_MODEL            BIT1
#define EFI_ACPI_6_4_VGIC_MAINTENANCE_INTERRUPT_MODE_FLAGS  BIT2

///
/// GIC Distributor Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT16    Reserved1;
  UINT32    GicId;
  UINT64    PhysicalBaseAddress;
  UINT32    SystemVectorBase;
  UINT8     GicVersion;
  UINT8     Reserved2[3];
} EFI_ACPI_6_4_GIC_DISTRIBUTOR_STRUCTURE;

///
/// GIC Version
///
#define EFI_ACPI_6_4_GIC_V1  0x01
#define EFI_ACPI_6_4_GIC_V2  0x02
#define EFI_ACPI_6_4_GIC_V3  0x03
#define EFI_ACPI_6_4_GIC_V4  0x04

///
/// GIC MSI Frame Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT16    Reserved1;
  UINT32    GicMsiFrameId;
  UINT64    PhysicalBaseAddress;
  UINT32    Flags;
  UINT16    SPICount;
  UINT16    SPIBase;
} EFI_ACPI_6_4_GIC_MSI_FRAME_STRUCTURE;

///
/// GIC MSI Frame Flags.  All other bits are reserved and must be 0.
///
#define EFI_ACPI_6_4_SPI_COUNT_BASE_SELECT  BIT0

///
/// GICR Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT16    Reserved;
  UINT64    DiscoveryRangeBaseAddress;
  UINT32    DiscoveryRangeLength;
} EFI_ACPI_6_4_GICR_STRUCTURE;

///
/// GIC Interrupt Translation Service Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT16    Reserved;
  UINT32    GicItsId;
  UINT64    PhysicalBaseAddress;
  UINT32    Reserved2;
} EFI_ACPI_6_4_GIC_ITS_STRUCTURE;

///
/// Multiprocessor Wakeup Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT16    MailBoxVersion;
  UINT32    Reserved;
  UINT64    MailBoxAddress;
} EFI_ACPI_6_4_MULTIPROCESSOR_WAKEUP_STRUCTURE;

///
/// Multiprocessor Wakeup Mailbox Structure
///
typedef struct {
  UINT16    Command;
  UINT16    Reserved;
  UINT32    AcpiId;
  UINT64    WakeupVector;
  UINT8     ReservedForOs[2032];
  UINT8     ReservedForFirmware[2048];
} EFI_ACPI_6_4_MULTIPROCESSOR_WAKEUP_MAILBOX_STRUCTURE;

#define EFI_ACPI_6_4_MULTIPROCESSOR_WAKEUP_MAILBOX_COMMAND_NOOP    0x0000
#define EFI_ACPI_6_4_MULTIPROCESSOR_WAKEUP_MAILBOX_COMMAND_WAKEUP  0x0001

///
/// Smart Battery Description Table (SBST)
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT32                         WarningEnergyLevel;
  UINT32                         LowEnergyLevel;
  UINT32                         CriticalEnergyLevel;
} EFI_ACPI_6_4_SMART_BATTERY_DESCRIPTION_TABLE;

///
/// SBST Version (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_SMART_BATTERY_DESCRIPTION_TABLE_REVISION  0x01

///
/// Embedded Controller Boot Resources Table (ECDT)
/// The table is followed by a null terminated ASCII string that contains
/// a fully qualified reference to the name space object.
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER               Header;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    EcControl;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    EcData;
  UINT32                                    Uid;
  UINT8                                     GpeBit;
} EFI_ACPI_6_4_EMBEDDED_CONTROLLER_BOOT_RESOURCES_TABLE;

///
/// ECDT Version (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_EMBEDDED_CONTROLLER_BOOT_RESOURCES_TABLE_REVISION  0x01

///
/// System Resource Affinity Table (SRAT).  The rest of the table
/// must be defined in a platform specific manner.
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT32                         Reserved1; ///< Must be set to 1
  UINT64                         Reserved2;
} EFI_ACPI_6_4_SYSTEM_RESOURCE_AFFINITY_TABLE_HEADER;

///
/// SRAT Version (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_SYSTEM_RESOURCE_AFFINITY_TABLE_REVISION  0x03

//
// SRAT structure types.
// All other values between 0x06 an 0xFF are reserved and
// will be ignored by OSPM.
//
#define EFI_ACPI_6_4_PROCESSOR_LOCAL_APIC_SAPIC_AFFINITY  0x00
#define EFI_ACPI_6_4_MEMORY_AFFINITY                      0x01
#define EFI_ACPI_6_4_PROCESSOR_LOCAL_X2APIC_AFFINITY      0x02
#define EFI_ACPI_6_4_GICC_AFFINITY                        0x03
#define EFI_ACPI_6_4_GIC_ITS_AFFINITY                     0x04
#define EFI_ACPI_6_4_GENERIC_INITIATOR_AFFINITY           0x05

///
/// Processor Local APIC/SAPIC Affinity Structure Definition
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT8     ProximityDomain7To0;
  UINT8     ApicId;
  UINT32    Flags;
  UINT8     LocalSapicEid;
  UINT8     ProximityDomain31To8[3];
  UINT32    ClockDomain;
} EFI_ACPI_6_4_PROCESSOR_LOCAL_APIC_SAPIC_AFFINITY_STRUCTURE;

///
/// Local APIC/SAPIC Flags.  All other bits are reserved and must be 0.
///
#define EFI_ACPI_6_4_PROCESSOR_LOCAL_APIC_SAPIC_ENABLED  (1 << 0)

///
/// Memory Affinity Structure Definition
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT32    ProximityDomain;
  UINT16    Reserved1;
  UINT32    AddressBaseLow;
  UINT32    AddressBaseHigh;
  UINT32    LengthLow;
  UINT32    LengthHigh;
  UINT32    Reserved2;
  UINT32    Flags;
  UINT64    Reserved3;
} EFI_ACPI_6_4_MEMORY_AFFINITY_STRUCTURE;

//
// Memory Flags.  All other bits are reserved and must be 0.
//
#define EFI_ACPI_6_4_MEMORY_ENABLED        (1 << 0)
#define EFI_ACPI_6_4_MEMORY_HOT_PLUGGABLE  (1 << 1)
#define EFI_ACPI_6_4_MEMORY_NONVOLATILE    (1 << 2)

///
/// Processor Local x2APIC Affinity Structure Definition
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT8     Reserved1[2];
  UINT32    ProximityDomain;
  UINT32    X2ApicId;
  UINT32    Flags;
  UINT32    ClockDomain;
  UINT8     Reserved2[4];
} EFI_ACPI_6_4_PROCESSOR_LOCAL_X2APIC_AFFINITY_STRUCTURE;

///
/// GICC Affinity Structure Definition
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT32    ProximityDomain;
  UINT32    AcpiProcessorUid;
  UINT32    Flags;
  UINT32    ClockDomain;
} EFI_ACPI_6_4_GICC_AFFINITY_STRUCTURE;

///
/// GICC Flags.  All other bits are reserved and must be 0.
///
#define EFI_ACPI_6_4_GICC_ENABLED  (1 << 0)

///
/// GIC Interrupt Translation Service (ITS) Affinity Structure Definition
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT32    ProximityDomain;
  UINT8     Reserved[2];
  UINT32    ItsId;
} EFI_ACPI_6_4_GIC_ITS_AFFINITY_STRUCTURE;

//
// Generic Initiator Affinity Structure Device Handle Types
// All other values between 0x02 an 0xFF are reserved and
// will be ignored by OSPM.
//
#define EFI_ACPI_6_4_ACPI_DEVICE_HANDLE  0x00
#define EFI_ACPI_6_4_PCI_DEVICE_HANDLE   0x01

///
/// Device Handle - ACPI
///
typedef struct {
  UINT64    AcpiHid;
  UINT32    AcpiUid;
  UINT8     Reserved[4];
} EFI_ACPI_6_4_DEVICE_HANDLE_ACPI;

///
/// Device Handle - PCI
///
typedef struct {
  UINT16    PciSegment;
  UINT16    PciBdfNumber;
  UINT8     Reserved[12];
} EFI_ACPI_6_4_DEVICE_HANDLE_PCI;

///
/// Device Handle
///
typedef union {
  EFI_ACPI_6_4_DEVICE_HANDLE_ACPI    Acpi;
  EFI_ACPI_6_4_DEVICE_HANDLE_PCI     Pci;
} EFI_ACPI_6_4_DEVICE_HANDLE;

///
/// Generic Initiator Affinity Structure
///
typedef struct {
  UINT8                         Type;
  UINT8                         Length;
  UINT8                         Reserved1;
  UINT8                         DeviceHandleType;
  UINT32                        ProximityDomain;
  EFI_ACPI_6_4_DEVICE_HANDLE    DeviceHandle;
  UINT32                        Flags;
  UINT8                         Reserved2[4];
} EFI_ACPI_6_4_GENERIC_INITIATOR_AFFINITY_STRUCTURE;

///
/// Generic Initiator Affinity Structure Flags. All other bits are reserved
/// and must be 0.
///
#define EFI_ACPI_6_4_GENERIC_INITIATOR_AFFINITY_STRUCTURE_ENABLED                     BIT0
#define EFI_ACPI_6_4_GENERIC_INITIATOR_AFFINITY_STRUCTURE_ARCHITECTURAL_TRANSACTIONS  BIT1

///
/// System Locality Distance Information Table (SLIT).
/// The rest of the table is a matrix.
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT64                         NumberOfSystemLocalities;
} EFI_ACPI_6_4_SYSTEM_LOCALITY_DISTANCE_INFORMATION_TABLE_HEADER;

///
/// SLIT Version (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_SYSTEM_LOCALITY_DISTANCE_INFORMATION_TABLE_REVISION  0x01

///
/// Corrected Platform Error Polling Table (CPEP)
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT8                          Reserved[8];
} EFI_ACPI_6_4_CORRECTED_PLATFORM_ERROR_POLLING_TABLE_HEADER;

///
/// CPEP Version (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_CORRECTED_PLATFORM_ERROR_POLLING_TABLE_REVISION  0x01

//
// CPEP processor structure types.
//
#define EFI_ACPI_6_4_CPEP_PROCESSOR_APIC_SAPIC  0x00

///
/// Corrected Platform Error Polling Processor Structure Definition
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT8     ProcessorId;
  UINT8     ProcessorEid;
  UINT32    PollingInterval;
} EFI_ACPI_6_4_CPEP_PROCESSOR_APIC_SAPIC_STRUCTURE;

///
/// Maximum System Characteristics Table (MSCT)
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT32                         OffsetProxDomInfo;
  UINT32                         MaximumNumberOfProximityDomains;
  UINT32                         MaximumNumberOfClockDomains;
  UINT64                         MaximumPhysicalAddress;
} EFI_ACPI_6_4_MAXIMUM_SYSTEM_CHARACTERISTICS_TABLE_HEADER;

///
/// MSCT Version (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_MAXIMUM_SYSTEM_CHARACTERISTICS_TABLE_REVISION  0x01

///
/// Maximum Proximity Domain Information Structure Definition
///
typedef struct {
  UINT8     Revision;
  UINT8     Length;
  UINT32    ProximityDomainRangeLow;
  UINT32    ProximityDomainRangeHigh;
  UINT32    MaximumProcessorCapacity;
  UINT64    MaximumMemoryCapacity;
} EFI_ACPI_6_4_MAXIMUM_PROXIMITY_DOMAIN_INFORMATION_STRUCTURE;

///
/// ACPI RAS Feature Table definition.
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT8                          PlatformCommunicationChannelIdentifier[12];
} EFI_ACPI_6_4_RAS_FEATURE_TABLE;

///
/// RASF Version (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_RAS_FEATURE_TABLE_REVISION  0x01

///
/// ACPI RASF Platform Communication Channel Shared Memory Region definition.
///
typedef struct {
  UINT32    Signature;
  UINT16    Command;
  UINT16    Status;
  UINT16    Version;
  UINT8     RASCapabilities[16];
  UINT8     SetRASCapabilities[16];
  UINT16    NumberOfRASFParameterBlocks;
  UINT32    SetRASCapabilitiesStatus;
} EFI_ACPI_6_4_RASF_PLATFORM_COMMUNICATION_CHANNEL_SHARED_MEMORY_REGION;

///
/// ACPI RASF PCC command code
///
#define EFI_ACPI_6_4_RASF_PCC_COMMAND_CODE_EXECUTE_RASF_COMMAND  0x01

///
/// ACPI RASF Platform RAS Capabilities
///
#define EFI_ACPI_6_4_RASF_PLATFORM_RAS_CAPABILITY_HARDWARE_BASED_PATROL_SCRUB_SUPPORTED                          BIT0
#define EFI_ACPI_6_4_RASF_PLATFORM_RAS_CAPABILITY_HARDWARE_BASED_PATROL_SCRUB_SUPPORTED_AND_EXPOSED_TO_SOFTWARE  BIT1
#define EFI_ACPI_6_4_RASF_PLATFORM_RAS_CAPABILITY_CPU_CACHE_FLUSH_TO_NVDIMM_DURABILITY_ON_POWER_LOSS             BIT2
#define EFI_ACPI_6_4_RASF_PLATFORM_RAS_CAPABILITY_MEMORY_CONTROLLER_FLUSH_TO_NVDIMM_DURABILITY_ON_POWER_LOSS     BIT3
#define EFI_ACPI_6_4_RASF_PLATFORM_RAS_CAPABILITY_BYTE_ADDRESSABLE_PERSISTENT_MEMORY_HARDWARE_MIRRORING          BIT4

///
/// ACPI RASF Parameter Block structure for PATROL_SCRUB
///
typedef struct {
  UINT16    Type;
  UINT16    Version;
  UINT16    Length;
  UINT16    PatrolScrubCommand;
  UINT64    RequestedAddressRange[2];
  UINT64    ActualAddressRange[2];
  UINT16    Flags;
  UINT8     RequestedSpeed;
} EFI_ACPI_6_4_RASF_PATROL_SCRUB_PLATFORM_BLOCK_STRUCTURE;

///
/// ACPI RASF Patrol Scrub command
///
#define EFI_ACPI_6_4_RASF_PATROL_SCRUB_COMMAND_GET_PATROL_PARAMETERS  0x01
#define EFI_ACPI_6_4_RASF_PATROL_SCRUB_COMMAND_START_PATROL_SCRUBBER  0x02
#define EFI_ACPI_6_4_RASF_PATROL_SCRUB_COMMAND_STOP_PATROL_SCRUBBER   0x03

///
/// Memory Power State Table definition.
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT8                          PlatformCommunicationChannelIdentifier;
  UINT8                          Reserved[3];
  // Memory Power Node Structure
  // Memory Power State Characteristics
} EFI_ACPI_6_4_MEMORY_POWER_STATUS_TABLE;

///
/// MPST Version (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_MEMORY_POWER_STATE_TABLE_REVISION  0x01

///
/// MPST Platform Communication Channel Shared Memory Region definition.
///
typedef struct {
  UINT32    Signature;
  UINT16    Command;
  UINT16    Status;
  UINT32    MemoryPowerCommandRegister;
  UINT32    MemoryPowerStatusRegister;
  UINT32    PowerStateId;
  UINT32    MemoryPowerNodeId;
  UINT64    MemoryEnergyConsumed;
  UINT64    ExpectedAveragePowerComsuned;
} EFI_ACPI_6_4_MPST_PLATFORM_COMMUNICATION_CHANNEL_SHARED_MEMORY_REGION;

///
/// ACPI MPST PCC command code
///
#define EFI_ACPI_6_4_MPST_PCC_COMMAND_CODE_EXECUTE_MPST_COMMAND  0x03

///
/// ACPI MPST Memory Power command
///
#define EFI_ACPI_6_4_MPST_MEMORY_POWER_COMMAND_GET_MEMORY_POWER_STATE      0x01
#define EFI_ACPI_6_4_MPST_MEMORY_POWER_COMMAND_SET_MEMORY_POWER_STATE      0x02
#define EFI_ACPI_6_4_MPST_MEMORY_POWER_COMMAND_GET_AVERAGE_POWER_CONSUMED  0x03
#define EFI_ACPI_6_4_MPST_MEMORY_POWER_COMMAND_GET_MEMORY_ENERGY_CONSUMED  0x04

///
/// MPST Memory Power Node Table
///
typedef struct {
  UINT8    PowerStateValue;
  UINT8    PowerStateInformationIndex;
} EFI_ACPI_6_4_MPST_MEMORY_POWER_STATE;

typedef struct {
  UINT8     Flag;
  UINT8     Reserved;
  UINT16    MemoryPowerNodeId;
  UINT32    Length;
  UINT64    AddressBase;
  UINT64    AddressLength;
  UINT32    NumberOfPowerStates;
  UINT32    NumberOfPhysicalComponents;
  // EFI_ACPI_6_4_MPST_MEMORY_POWER_STATE              MemoryPowerState[NumberOfPowerStates];
  // UINT16                                            PhysicalComponentIdentifier[NumberOfPhysicalComponents];
} EFI_ACPI_6_4_MPST_MEMORY_POWER_STRUCTURE;

#define EFI_ACPI_6_4_MPST_MEMORY_POWER_STRUCTURE_FLAG_ENABLE         0x01
#define EFI_ACPI_6_4_MPST_MEMORY_POWER_STRUCTURE_FLAG_POWER_MANAGED  0x02
#define EFI_ACPI_6_4_MPST_MEMORY_POWER_STRUCTURE_FLAG_HOT_PLUGGABLE  0x04

typedef struct {
  UINT16    MemoryPowerNodeCount;
  UINT8     Reserved[2];
} EFI_ACPI_6_4_MPST_MEMORY_POWER_NODE_TABLE;

///
/// MPST Memory Power State Characteristics Table
///
typedef struct {
  UINT8     PowerStateStructureID;
  UINT8     Flag;
  UINT16    Reserved;
  UINT32    AveragePowerConsumedInMPS0;
  UINT32    RelativePowerSavingToMPS0;
  UINT64    ExitLatencyToMPS0;
} EFI_ACPI_6_4_MPST_MEMORY_POWER_STATE_CHARACTERISTICS_STRUCTURE;

#define EFI_ACPI_6_4_MPST_MEMORY_POWER_STATE_CHARACTERISTICS_STRUCTURE_FLAG_MEMORY_CONTENT_PRESERVED             0x01
#define EFI_ACPI_6_4_MPST_MEMORY_POWER_STATE_CHARACTERISTICS_STRUCTURE_FLAG_AUTONOMOUS_MEMORY_POWER_STATE_ENTRY  0x02
#define EFI_ACPI_6_4_MPST_MEMORY_POWER_STATE_CHARACTERISTICS_STRUCTURE_FLAG_AUTONOMOUS_MEMORY_POWER_STATE_EXIT   0x04

typedef struct {
  UINT16    MemoryPowerStateCharacteristicsCount;
  UINT8     Reserved[2];
} EFI_ACPI_6_4_MPST_MEMORY_POWER_STATE_CHARACTERISTICS_TABLE;

///
/// Platform Memory Topology Table definition.
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT32                         NumberOfMemoryDevices;
  // EFI_ACPI_6_4_PMTT_COMMON_MEMORY_DEVICE  MemoryDeviceStructure[NumberOfMemoryDevices];
} EFI_ACPI_6_4_PLATFORM_MEMORY_TOPOLOGY_TABLE;

///
/// PMTT Version (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_MEMORY_TOPOLOGY_TABLE_REVISION  0x02

///
/// Common Memory Device.
///
typedef struct {
  UINT8     Type;
  UINT8     Reserved;
  UINT16    Length;
  UINT16    Flags;
  UINT16    Reserved1;
  UINT32    NumberOfMemoryDevices;
  // UINT8                                   TypeSpecificData[];
  // EFI_ACPI_6_4_PMTT_COMMON_MEMORY_DEVICE  MemoryDeviceStructure[NumberOfMemoryDevices];
} EFI_ACPI_6_4_PMTT_COMMON_MEMORY_DEVICE;

///
/// Memory Device Type.
///
#define EFI_ACPI_6_4_PMTT_MEMORY_DEVICE_TYPE_SOCKET                0x0
#define EFI_ACPI_6_4_PMTT_MEMORY_DEVICE_TYPE_MEMORY_CONTROLLER     0x1
#define EFI_ACPI_6_4_PMTT_MEMORY_DEVICE_TYPE_DIMM                  0x2
#define EFI_ACPI_6_4_PMTT_MEMORY_DEVICE_TYPE_VENDOR_SPECIFIC_TYPE  0xFF

///
/// Socket Type Data.
///
typedef struct {
  EFI_ACPI_6_4_PMTT_COMMON_MEMORY_DEVICE    CommonMemoryDeviceHeader;
  UINT16                                    SocketIdentifier;
  UINT16                                    Reserved;
  // EFI_ACPI_6_4_PMTT_COMMON_MEMORY_DEVICE  MemoryDeviceStructure[];
} EFI_ACPI_6_4_PMTT_SOCKET_TYPE_DATA;

///
/// Memory Controller Type Data.
///
typedef struct {
  EFI_ACPI_6_4_PMTT_COMMON_MEMORY_DEVICE    CommonMemoryDeviceHeader;
  UINT16                                    MemoryControllerIdentifier;
  UINT16                                    Reserved;
  // EFI_ACPI_6_4_PMTT_COMMON_MEMORY_DEVICE  MemoryDeviceStructure[];
} EFI_ACPI_6_4_PMTT_MEMORY_CONTROLLER_TYPE_DATA;

///
/// DIMM Type Specific Data.
///
typedef struct {
  EFI_ACPI_6_4_PMTT_COMMON_MEMORY_DEVICE    CommonMemoryDeviceHeader;
  UINT32                                    SmbiosHandle;
} EFI_ACPI_6_4_PMTT_DIMM_TYPE_SPECIFIC_DATA;

///
/// Vendor Specific Type Data.
///
typedef struct {
  EFI_ACPI_6_4_PMTT_COMMON_MEMORY_DEVICE    CommonMemoryDeviceHeader;
  UINT8                                     TypeUuid[16];
  // EFI_ACPI_6_4_PMTT_VENDOR_SPECIFIC_TYPE_DATA   VendorSpecificData[];
  // EFI_ACPI_6_4_PMTT_COMMON_MEMORY_DEVICE        MemoryDeviceStructure[];
} EFI_ACPI_6_4_PMTT_VENDOR_SPECIFIC_TYPE_DATA;

///
/// Boot Graphics Resource Table definition.
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  ///
  /// 2-bytes (16 bit) version ID. This value must be 1.
  ///
  UINT16                         Version;
  ///
  /// 1-byte status field indicating current status about the table.
  ///     Bits[7:3] = Reserved (must be zero)
  ///     Bits[2:1] = Orientation Offset. These bits describe the clockwise
  ///                 degree offset from the image's default orientation.
  ///                 [00] = 0, no offset
  ///                 [01] = 90
  ///                 [10] = 180
  ///                 [11] = 270
  ///     Bit [0] = Displayed. A one indicates the boot image graphic is
  ///               displayed.
  ///
  UINT8     Status;
  ///
  /// 1-byte enumerated type field indicating format of the image.
  ///     0 = Bitmap
  ///     1 - 255  Reserved (for future use)
  ///
  UINT8     ImageType;
  ///
  /// 8-byte (64 bit) physical address pointing to the firmware's in-memory copy
  /// of the image bitmap.
  ///
  UINT64    ImageAddress;
  ///
  /// A 4-byte (32-bit) unsigned long describing the display X-offset of the boot image.
  /// (X, Y) display offset of the top left corner of the boot image.
  /// The top left corner of the display is at offset (0, 0).
  ///
  UINT32    ImageOffsetX;
  ///
  /// A 4-byte (32-bit) unsigned long describing the display Y-offset of the boot image.
  /// (X, Y) display offset of the top left corner of the boot image.
  /// The top left corner of the display is at offset (0, 0).
  ///
  UINT32    ImageOffsetY;
} EFI_ACPI_6_4_BOOT_GRAPHICS_RESOURCE_TABLE;

///
/// BGRT Revision
///
#define EFI_ACPI_6_4_BOOT_GRAPHICS_RESOURCE_TABLE_REVISION  1

///
/// BGRT Version
///
#define EFI_ACPI_6_4_BGRT_VERSION  0x01

///
/// BGRT Status
///
#define EFI_ACPI_6_4_BGRT_STATUS_NOT_DISPLAYED  0x00
#define EFI_ACPI_6_4_BGRT_STATUS_DISPLAYED      0x01

///
/// BGRT Image Type
///
#define EFI_ACPI_6_4_BGRT_IMAGE_TYPE_BMP  0x00

///
/// FPDT Version (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_FIRMWARE_PERFORMANCE_DATA_TABLE_REVISION  0x01

///
/// FPDT Performance Record Types
///
#define EFI_ACPI_6_4_FPDT_RECORD_TYPE_FIRMWARE_BASIC_BOOT_POINTER   0x0000
#define EFI_ACPI_6_4_FPDT_RECORD_TYPE_S3_PERFORMANCE_TABLE_POINTER  0x0001

///
/// FPDT Performance Record Revision
///
#define EFI_ACPI_6_4_FPDT_RECORD_REVISION_FIRMWARE_BASIC_BOOT_POINTER   0x01
#define EFI_ACPI_6_4_FPDT_RECORD_REVISION_S3_PERFORMANCE_TABLE_POINTER  0x01

///
/// FPDT Runtime Performance Record Types
///
#define EFI_ACPI_6_4_FPDT_RUNTIME_RECORD_TYPE_S3_RESUME            0x0000
#define EFI_ACPI_6_4_FPDT_RUNTIME_RECORD_TYPE_S3_SUSPEND           0x0001
#define EFI_ACPI_6_4_FPDT_RUNTIME_RECORD_TYPE_FIRMWARE_BASIC_BOOT  0x0002

///
/// FPDT Runtime Performance Record Revision
///
#define EFI_ACPI_6_4_FPDT_RUNTIME_RECORD_REVISION_S3_RESUME            0x01
#define EFI_ACPI_6_4_FPDT_RUNTIME_RECORD_REVISION_S3_SUSPEND           0x01
#define EFI_ACPI_6_4_FPDT_RUNTIME_RECORD_REVISION_FIRMWARE_BASIC_BOOT  0x02

///
/// FPDT Performance Record header
///
typedef struct {
  UINT16    Type;
  UINT8     Length;
  UINT8     Revision;
} EFI_ACPI_6_4_FPDT_PERFORMANCE_RECORD_HEADER;

///
/// FPDT Performance Table header
///
typedef struct {
  UINT32    Signature;
  UINT32    Length;
} EFI_ACPI_6_4_FPDT_PERFORMANCE_TABLE_HEADER;

///
/// FPDT Firmware Basic Boot Performance Pointer Record Structure
///
typedef struct {
  EFI_ACPI_6_4_FPDT_PERFORMANCE_RECORD_HEADER    Header;
  UINT32                                         Reserved;
  ///
  /// 64-bit processor-relative physical address of the Basic Boot Performance Table.
  ///
  UINT64                                         BootPerformanceTablePointer;
} EFI_ACPI_6_4_FPDT_BOOT_PERFORMANCE_TABLE_POINTER_RECORD;

///
/// FPDT S3 Performance Table Pointer Record Structure
///
typedef struct {
  EFI_ACPI_6_4_FPDT_PERFORMANCE_RECORD_HEADER    Header;
  UINT32                                         Reserved;
  ///
  /// 64-bit processor-relative physical address of the S3 Performance Table.
  ///
  UINT64                                         S3PerformanceTablePointer;
} EFI_ACPI_6_4_FPDT_S3_PERFORMANCE_TABLE_POINTER_RECORD;

///
/// FPDT Firmware Basic Boot Performance Record Structure
///
typedef struct {
  EFI_ACPI_6_4_FPDT_PERFORMANCE_RECORD_HEADER    Header;
  UINT32                                         Reserved;
  ///
  /// Timer value logged at the beginning of firmware image execution.
  /// This may not always be zero or near zero.
  ///
  UINT64                                         ResetEnd;
  ///
  /// Timer value logged just prior to loading the OS boot loader into memory.
  /// For non-UEFI compatible boots, this field must be zero.
  ///
  UINT64                                         OsLoaderLoadImageStart;
  ///
  /// Timer value logged just prior to launching the previously loaded OS boot loader image.
  /// For non-UEFI compatible boots, the timer value logged will be just prior
  /// to the INT 19h handler invocation.
  ///
  UINT64                                         OsLoaderStartImageStart;
  ///
  /// Timer value logged at the point when the OS loader calls the
  /// ExitBootServices function for UEFI compatible firmware.
  /// For non-UEFI compatible boots, this field must be zero.
  ///
  UINT64                                         ExitBootServicesEntry;
  ///
  /// Timer value logged at the point just prior towhen the OS loader gaining
  /// control back from calls the ExitBootServices function for UEFI compatible firmware.
  /// For non-UEFI compatible boots, this field must be zero.
  ///
  UINT64                                         ExitBootServicesExit;
} EFI_ACPI_6_4_FPDT_FIRMWARE_BASIC_BOOT_RECORD;

///
/// FPDT Firmware Basic Boot Performance Table signature
///
#define EFI_ACPI_6_4_FPDT_BOOT_PERFORMANCE_TABLE_SIGNATURE  SIGNATURE_32('F', 'B', 'P', 'T')

//
// FPDT Firmware Basic Boot Performance Table
//
typedef struct {
  EFI_ACPI_6_4_FPDT_PERFORMANCE_TABLE_HEADER    Header;
  //
  // one or more Performance Records.
  //
} EFI_ACPI_6_4_FPDT_FIRMWARE_BASIC_BOOT_TABLE;

///
/// FPDT "S3PT" S3 Performance Table
///
#define EFI_ACPI_6_4_FPDT_S3_PERFORMANCE_TABLE_SIGNATURE  SIGNATURE_32('S', '3', 'P', 'T')

//
// FPDT Firmware S3 Boot Performance Table
//
typedef struct {
  EFI_ACPI_6_4_FPDT_PERFORMANCE_TABLE_HEADER    Header;
  //
  // one or more Performance Records.
  //
} EFI_ACPI_6_4_FPDT_FIRMWARE_S3_BOOT_TABLE;

///
/// FPDT Basic S3 Resume Performance Record
///
typedef struct {
  EFI_ACPI_6_4_FPDT_PERFORMANCE_RECORD_HEADER    Header;
  ///
  /// A count of the number of S3 resume cycles since the last full boot sequence.
  ///
  UINT32                                         ResumeCount;
  ///
  /// Timer recorded at the end of BIOS S3 resume, just prior to handoff to the
  /// OS waking vector. Only the most recent resume cycle's time is retained.
  ///
  UINT64                                         FullResume;
  ///
  /// Average timer value of all resume cycles logged since the last full boot
  /// sequence, including the most recent resume.  Note that the entire log of
  /// timer values does not need to be retained in order to calculate this average.
  ///
  UINT64                                         AverageResume;
} EFI_ACPI_6_4_FPDT_S3_RESUME_RECORD;

///
/// FPDT Basic S3 Suspend Performance Record
///
typedef struct {
  EFI_ACPI_6_4_FPDT_PERFORMANCE_RECORD_HEADER    Header;
  ///
  /// Timer value recorded at the OS write to SLP_TYP upon entry to S3.
  /// Only the most recent suspend cycle's timer value is retained.
  ///
  UINT64                                         SuspendStart;
  ///
  /// Timer value recorded at the final firmware write to SLP_TYP (or other
  /// mechanism) used to trigger hardware entry to S3.
  /// Only the most recent suspend cycle's timer value is retained.
  ///
  UINT64                                         SuspendEnd;
} EFI_ACPI_6_4_FPDT_S3_SUSPEND_RECORD;

///
/// Firmware Performance Record Table definition.
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
} EFI_ACPI_6_4_FIRMWARE_PERFORMANCE_RECORD_TABLE;

///
/// Generic Timer Description Table definition.
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT64                         CntControlBasePhysicalAddress;
  UINT32                         Reserved;
  UINT32                         SecurePL1TimerGSIV;
  UINT32                         SecurePL1TimerFlags;
  UINT32                         NonSecurePL1TimerGSIV;
  UINT32                         NonSecurePL1TimerFlags;
  UINT32                         VirtualTimerGSIV;
  UINT32                         VirtualTimerFlags;
  UINT32                         NonSecurePL2TimerGSIV;
  UINT32                         NonSecurePL2TimerFlags;
  UINT64                         CntReadBasePhysicalAddress;
  UINT32                         PlatformTimerCount;
  UINT32                         PlatformTimerOffset;
  UINT32                         VirtualPL2TimerGSIV;
  UINT32                         VirtualPL2TimerFlags;
} EFI_ACPI_6_4_GENERIC_TIMER_DESCRIPTION_TABLE;

///
/// GTDT Version (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_GENERIC_TIMER_DESCRIPTION_TABLE_REVISION  0x03

///
/// Timer Flags.  All other bits are reserved and must be 0.
///
#define EFI_ACPI_6_4_GTDT_TIMER_FLAG_TIMER_INTERRUPT_MODE      BIT0
#define EFI_ACPI_6_4_GTDT_TIMER_FLAG_TIMER_INTERRUPT_POLARITY  BIT1
#define EFI_ACPI_6_4_GTDT_TIMER_FLAG_ALWAYS_ON_CAPABILITY      BIT2

///
/// Platform Timer Type
///
#define EFI_ACPI_6_4_GTDT_GT_BLOCK              0
#define EFI_ACPI_6_4_GTDT_ARM_GENERIC_WATCHDOG  1

///
/// GT Block Structure
///
typedef struct {
  UINT8     Type;
  UINT16    Length;
  UINT8     Reserved;
  UINT64    CntCtlBase;
  UINT32    GTBlockTimerCount;
  UINT32    GTBlockTimerOffset;
} EFI_ACPI_6_4_GTDT_GT_BLOCK_STRUCTURE;

///
/// GT Block Timer Structure
///
typedef struct {
  UINT8     GTFrameNumber;
  UINT8     Reserved[3];
  UINT64    CntBaseX;
  UINT64    CntEL0BaseX;
  UINT32    GTxPhysicalTimerGSIV;
  UINT32    GTxPhysicalTimerFlags;
  UINT32    GTxVirtualTimerGSIV;
  UINT32    GTxVirtualTimerFlags;
  UINT32    GTxCommonFlags;
} EFI_ACPI_6_4_GTDT_GT_BLOCK_TIMER_STRUCTURE;

///
/// GT Block Physical Timers and Virtual Timers Flags.  All other bits are reserved and must be 0.
///
#define EFI_ACPI_6_4_GTDT_GT_BLOCK_TIMER_FLAG_TIMER_INTERRUPT_MODE      BIT0
#define EFI_ACPI_6_4_GTDT_GT_BLOCK_TIMER_FLAG_TIMER_INTERRUPT_POLARITY  BIT1

///
/// Common Flags Flags.  All other bits are reserved and must be 0.
///
#define EFI_ACPI_6_4_GTDT_GT_BLOCK_COMMON_FLAG_SECURE_TIMER          BIT0
#define EFI_ACPI_6_4_GTDT_GT_BLOCK_COMMON_FLAG_ALWAYS_ON_CAPABILITY  BIT1

///
/// Arm Generic Watchdog Structure
///
typedef struct {
  UINT8     Type;
  UINT16    Length;
  UINT8     Reserved;
  UINT64    RefreshFramePhysicalAddress;
  UINT64    WatchdogControlFramePhysicalAddress;
  UINT32    WatchdogTimerGSIV;
  UINT32    WatchdogTimerFlags;
} EFI_ACPI_6_4_GTDT_ARM_GENERIC_WATCHDOG_STRUCTURE;

///
/// Arm Generic Watchdog Timer Flags.  All other bits are reserved and must be 0.
///
#define EFI_ACPI_6_4_GTDT_ARM_GENERIC_WATCHDOG_FLAG_TIMER_INTERRUPT_MODE      BIT0
#define EFI_ACPI_6_4_GTDT_ARM_GENERIC_WATCHDOG_FLAG_TIMER_INTERRUPT_POLARITY  BIT1
#define EFI_ACPI_6_4_GTDT_ARM_GENERIC_WATCHDOG_FLAG_SECURE_TIMER              BIT2

//
// NVDIMM Firmware Interface Table definition.
//
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT32                         Reserved;
} EFI_ACPI_6_4_NVDIMM_FIRMWARE_INTERFACE_TABLE;

//
// NFIT Version (as defined in ACPI 6.4 spec.)
//
#define EFI_ACPI_6_4_NVDIMM_FIRMWARE_INTERFACE_TABLE_REVISION  0x1

//
// Definition for NFIT Table Structure Types
//
#define EFI_ACPI_6_4_NFIT_SYSTEM_PHYSICAL_ADDRESS_RANGE_STRUCTURE_TYPE    0
#define EFI_ACPI_6_4_NFIT_NVDIMM_REGION_MAPPING_STRUCTURE_TYPE            1
#define EFI_ACPI_6_4_NFIT_INTERLEAVE_STRUCTURE_TYPE                       2
#define EFI_ACPI_6_4_NFIT_SMBIOS_MANAGEMENT_INFORMATION_STRUCTURE_TYPE    3
#define EFI_ACPI_6_4_NFIT_NVDIMM_CONTROL_REGION_STRUCTURE_TYPE            4
#define EFI_ACPI_6_4_NFIT_NVDIMM_BLOCK_DATA_WINDOW_REGION_STRUCTURE_TYPE  5
#define EFI_ACPI_6_4_NFIT_FLUSH_HINT_ADDRESS_STRUCTURE_TYPE               6
#define EFI_ACPI_6_4_NFIT_PLATFORM_CAPABILITIES_STRUCTURE_TYPE            7

//
// Definition for NFIT Structure Header
//
typedef struct {
  UINT16    Type;
  UINT16    Length;
} EFI_ACPI_6_4_NFIT_STRUCTURE_HEADER;

//
// Definition for System Physical Address Range Structure
//
#define EFI_ACPI_6_4_NFIT_SYSTEM_PHYSICAL_ADDRESS_RANGE_FLAGS_CONTROL_REGION_FOR_MANAGEMENT  BIT0
#define EFI_ACPI_6_4_NFIT_SYSTEM_PHYSICAL_ADDRESS_RANGE_FLAGS_PROXIMITY_DOMAIN_VALID         BIT1
#define EFI_ACPI_6_4_NFIT_SYSTEM_PHYSICAL_ADDRESS_RANGE_FLAGS_SPA_LOCATION_COOKIE_VALID      BIT2

#define EFI_ACPI_6_4_NFIT_GUID_VOLATILE_MEMORY_REGION                              { 0x7305944F, 0xFDDA, 0x44E3, { 0xB1, 0x6C, 0x3F, 0x22, 0xD2, 0x52, 0xE5, 0xD0 }}
#define EFI_ACPI_6_4_NFIT_GUID_BYTE_ADDRESSABLE_PERSISTENT_MEMORY_REGION           { 0x66F0D379, 0xB4F3, 0x4074, { 0xAC, 0x43, 0x0D, 0x33, 0x18, 0xB7, 0x8C, 0xDB }}
#define EFI_ACPI_6_4_NFIT_GUID_NVDIMM_CONTROL_REGION                               { 0x92F701F6, 0x13B4, 0x405D, { 0x91, 0x0B, 0x29, 0x93, 0x67, 0xE8, 0x23, 0x4C }}
#define EFI_ACPI_6_4_NFIT_GUID_NVDIMM_BLOCK_DATA_WINDOW_REGION                     { 0x91AF0530, 0x5D86, 0x470E, { 0xA6, 0xB0, 0x0A, 0x2D, 0xB9, 0x40, 0x82, 0x49 }}
#define EFI_ACPI_6_4_NFIT_GUID_RAM_DISK_SUPPORTING_VIRTUAL_DISK_REGION_VOLATILE    { 0x77AB535A, 0x45FC, 0x624B, { 0x55, 0x60, 0xF7, 0xB2, 0x81, 0xD1, 0xF9, 0x6E }}
#define EFI_ACPI_6_4_NFIT_GUID_RAM_DISK_SUPPORTING_VIRTUAL_CD_REGION_VOLATILE      { 0x3D5ABD30, 0x4175, 0x87CE, { 0x6D, 0x64, 0xD2, 0xAD, 0xE5, 0x23, 0xC4, 0xBB }}
#define EFI_ACPI_6_4_NFIT_GUID_RAM_DISK_SUPPORTING_VIRTUAL_DISK_REGION_PERSISTENT  { 0x5CEA02C9, 0x4D07, 0x69D3, { 0x26, 0x9F ,0x44, 0x96, 0xFB, 0xE0, 0x96, 0xF9 }}
#define EFI_ACPI_6_4_NFIT_GUID_RAM_DISK_SUPPORTING_VIRTUAL_CD_REGION_PERSISTENT    { 0x08018188, 0x42CD, 0xBB48, { 0x10, 0x0F, 0x53, 0x87, 0xD5, 0x3D, 0xED, 0x3D }}

typedef struct {
  UINT16    Type;
  UINT16    Length;
  UINT16    SPARangeStructureIndex;
  UINT16    Flags;
  UINT32    Reserved_8;
  UINT32    ProximityDomain;
  GUID      AddressRangeTypeGUID;
  UINT64    SystemPhysicalAddressRangeBase;
  UINT64    SystemPhysicalAddressRangeLength;
  UINT64    AddressRangeMemoryMappingAttribute;
  UINT64    SPALocationCookie;
} EFI_ACPI_6_4_NFIT_SYSTEM_PHYSICAL_ADDRESS_RANGE_STRUCTURE;

//
// Definition for Memory Device to System Physical Address Range Mapping Structure
//
typedef struct {
  UINT32    DIMMNumber          : 4;
  UINT32    MemoryChannelNumber : 4;
  UINT32    MemoryControllerID  : 4;
  UINT32    SocketID            : 4;
  UINT32    NodeControllerID    : 12;
  UINT32    Reserved_28         : 4;
} EFI_ACPI_6_4_NFIT_DEVICE_HANDLE;

#define EFI_ACPI_6_4_NFIT_MEMORY_DEVICE_STATE_FLAGS_PREVIOUS_SAVE_FAIL                                      BIT0
#define EFI_ACPI_6_4_NFIT_MEMORY_DEVICE_STATE_FLAGS_LAST_RESTORE_FAIL                                       BIT1
#define EFI_ACPI_6_4_NFIT_MEMORY_DEVICE_STATE_FLAGS_PLATFORM_FLUSH_FAIL                                     BIT2
#define EFI_ACPI_6_4_NFIT_MEMORY_DEVICE_STATE_FLAGS_NOT_ARMED_PRIOR_TO_OSPM_HAND_OFF                        BIT3
#define EFI_ACPI_6_4_NFIT_MEMORY_DEVICE_STATE_FLAGS_SMART_HEALTH_EVENTS_PRIOR_OSPM_HAND_OFF                 BIT4
#define EFI_ACPI_6_4_NFIT_MEMORY_DEVICE_STATE_FLAGS_FIRMWARE_ENABLED_TO_NOTIFY_OSPM_ON_SMART_HEALTH_EVENTS  BIT5
#define EFI_ACPI_6_4_NFIT_MEMORY_DEVICE_STATE_FLAGS_FIRMWARE_NOT_MAP_NVDIMM_TO_SPA                          BIT6

typedef struct {
  UINT16                             Type;
  UINT16                             Length;
  EFI_ACPI_6_4_NFIT_DEVICE_HANDLE    NFITDeviceHandle;
  UINT16                             NVDIMMPhysicalID;
  UINT16                             NVDIMMRegionID;
  UINT16                             SPARangeStructureIndex;
  UINT16                             NVDIMMControlRegionStructureIndex;
  UINT64                             NVDIMMRegionSize;
  UINT64                             RegionOffset;
  UINT64                             NVDIMMPhysicalAddressRegionBase;
  UINT16                             InterleaveStructureIndex;
  UINT16                             InterleaveWays;
  UINT16                             NVDIMMStateFlags;
  UINT16                             Reserved_46;
} EFI_ACPI_6_4_NFIT_NVDIMM_REGION_MAPPING_STRUCTURE;

//
// Definition for Interleave Structure
//
typedef struct {
  UINT16    Type;
  UINT16    Length;
  UINT16    InterleaveStructureIndex;
  UINT16    Reserved_6;
  UINT32    NumberOfLines;
  UINT32    LineSize;
  // UINT32                                      LineOffset[NumberOfLines];
} EFI_ACPI_6_4_NFIT_INTERLEAVE_STRUCTURE;

//
// Definition for SMBIOS Management Information Structure
//
typedef struct {
  UINT16    Type;
  UINT16    Length;
  UINT32    Reserved_4;
  // UINT8                                       Data[];
} EFI_ACPI_6_4_NFIT_SMBIOS_MANAGEMENT_INFORMATION_STRUCTURE;

//
// Definition for NVDIMM Control Region Structure
//
#define EFI_ACPI_6_4_NFIT_NVDIMM_CONTROL_REGION_VALID_FIELDS_MANUFACTURING  BIT0

#define EFI_ACPI_6_4_NFIT_NVDIMM_CONTROL_REGION_FLAGS_BLOCK_DATA_WINDOWS_BUFFERED  BIT0

typedef struct {
  UINT16    Type;
  UINT16    Length;
  UINT16    NVDIMMControlRegionStructureIndex;
  UINT16    VendorID;
  UINT16    DeviceID;
  UINT16    RevisionID;
  UINT16    SubsystemVendorID;
  UINT16    SubsystemDeviceID;
  UINT16    SubsystemRevisionID;
  UINT8     ValidFields;
  UINT8     ManufacturingLocation;
  UINT16    ManufacturingDate;
  UINT8     Reserved_22[2];
  UINT32    SerialNumber;
  UINT16    RegionFormatInterfaceCode;
  UINT16    NumberOfBlockControlWindows;
  UINT64    SizeOfBlockControlWindow;
  UINT64    CommandRegisterOffsetInBlockControlWindow;
  UINT64    SizeOfCommandRegisterInBlockControlWindows;
  UINT64    StatusRegisterOffsetInBlockControlWindow;
  UINT64    SizeOfStatusRegisterInBlockControlWindows;
  UINT16    NVDIMMControlRegionFlag;
  UINT8     Reserved_74[6];
} EFI_ACPI_6_4_NFIT_NVDIMM_CONTROL_REGION_STRUCTURE;

//
// Definition for NVDIMM Block Data Window Region Structure
//
typedef struct {
  UINT16    Type;
  UINT16    Length;
  UINT16    NVDIMMControlRegionStructureIndex;
  UINT16    NumberOfBlockDataWindows;
  UINT64    BlockDataWindowStartOffset;
  UINT64    SizeOfBlockDataWindow;
  UINT64    BlockAccessibleMemoryCapacity;
  UINT64    BeginningAddressOfFirstBlockInBlockAccessibleMemory;
} EFI_ACPI_6_4_NFIT_NVDIMM_BLOCK_DATA_WINDOW_REGION_STRUCTURE;

//
// Definition for Flush Hint Address Structure
//
typedef struct {
  UINT16                             Type;
  UINT16                             Length;
  EFI_ACPI_6_4_NFIT_DEVICE_HANDLE    NFITDeviceHandle;
  UINT16                             NumberOfFlushHintAddresses;
  UINT8                              Reserved_10[6];
  // UINT64                                      FlushHintAddress[NumberOfFlushHintAddresses];
} EFI_ACPI_6_4_NFIT_FLUSH_HINT_ADDRESS_STRUCTURE;

//
// Definition for Platform Capabilities Structure
//
typedef struct {
  UINT16    Type;
  UINT16    Length;
  UINT8     HighestValidCapability;
  UINT8     Reserved_5[3];
  UINT32    Capabilities;
  UINT8     Reserved_12[4];
} EFI_ACPI_6_4_NFIT_PLATFORM_CAPABILITIES_STRUCTURE;

#define EFI_ACPI_6_4_NFIT_PLATFORM_CAPABILITY_CPU_CACHE_FLUSH_TO_NVDIMM_DURABILITY_ON_POWER_LOSS          BIT0
#define EFI_ACPI_6_4_NFIT_PLATFORM_CAPABILITY_MEMORY_CONTROLLER_FLUSH_TO_NVDIMM_DURABILITY_ON_POWER_LOSS  BIT1
#define EFI_ACPI_6_4_NFIT_PLATFORM_CAPABILITY_BYTE_ADDRESSABLE_PERSISTENT_MEMORY_HARDWARE_MIRRORING       BIT2

///
/// Secure DEVices Table (SDEV)
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
} EFI_ACPI_6_4_SECURE_DEVICES_TABLE_HEADER;

///
/// SDEV Revision (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_SECURE_DEVICES_TABLE_REVISION  0x01

///
/// Secure Device types
///
#define EFI_ACPI_6_4_SDEV_TYPE_ACPI_NAMESPACE_DEVICE  0x00
#define EFI_ACPI_6_4_SDEV_TYPE_PCIE_ENDPOINT_DEVICE   0x01

///
/// Secure Device flags
///
#define EFI_ACPI_6_4_SDEV_FLAG_ALLOW_HANDOFF                     BIT0
#define EFI_ACPI_6_4_SDEV_FLAG_SECURE_ACCESS_COMPONENTS_PRESENT  BIT1

///
/// SDEV Structure Header
///
typedef struct {
  UINT8     Type;
  UINT8     Flags;
  UINT16    Length;
} EFI_ACPI_6_4_SDEV_STRUCTURE_HEADER;

///
/// ACPI_NAMESPACE_DEVICE based Secure Device Structure
///
typedef struct {
  EFI_ACPI_6_4_SDEV_STRUCTURE_HEADER    Header;
  UINT16                                DeviceIdentifierOffset;
  UINT16                                DeviceIdentifierLength;
  UINT16                                VendorSpecificDataOffset;
  UINT16                                VendorSpecificDataLength;
  UINT16                                SecureAccessComponentsOffset;
  UINT16                                SecureAccessComponentsLength;
} EFI_ACPI_6_4_SDEV_STRUCTURE_ACPI_NAMESPACE_DEVICE;

///
/// Secure Access Component Types
///
#define EFI_ACPI_6_4_SDEV_SECURE_ACCESS_COMPONENT_TYPE_IDENTIFICATION  0x00
#define EFI_ACPI_6_4_SDEV_SECURE_ACCESS_COMPONENT_TYPE_MEMORY          0x01

///
/// Identification Based Secure Access Component
///
typedef struct {
  EFI_ACPI_6_4_SDEV_STRUCTURE_HEADER    Header;
  UINT16                                HardwareIdentifierOffset;
  UINT16                                HardwareIdentifierLength;
  UINT16                                SubsystemIdentifierOffset;
  UINT16                                SubsystemIdentifierLength;
  UINT16                                HardwareRevision;
  UINT8                                 HardwareRevisionPresent;
  UINT8                                 ClassCodePresent;
  UINT8                                 PciCompatibleBaseClass;
  UINT8                                 PciCompatibleSubClass;
  UINT8                                 PciCompatibleProgrammingInterface;
} EFI_ACPI_6_4_SDEV_SECURE_ACCESS_COMPONENT_IDENTIFICATION_STRUCTURE;

///
/// Memory-based Secure Access Component
///
typedef struct {
  EFI_ACPI_6_4_SDEV_STRUCTURE_HEADER    Header;
  UINT32                                Reserved;
  UINT64                                MemoryAddressBase;
  UINT64                                MemoryLength;
} EFI_ACPI_6_4_SDEV_SECURE_ACCESS_COMPONENT_MEMORY_STRUCTURE;

///
/// PCIe Endpoint Device based Secure Device Structure
///
typedef struct {
  EFI_ACPI_6_4_SDEV_STRUCTURE_HEADER    Header;
  UINT16                                PciSegmentNumber;
  UINT16                                StartBusNumber;
  UINT16                                PciPathOffset;
  UINT16                                PciPathLength;
  UINT16                                VendorSpecificDataOffset;
  UINT16                                VendorSpecificDataLength;
} EFI_ACPI_6_4_SDEV_STRUCTURE_PCIE_ENDPOINT_DEVICE;

///
/// Boot Error Record Table (BERT)
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT32                         BootErrorRegionLength;
  UINT64                         BootErrorRegion;
} EFI_ACPI_6_4_BOOT_ERROR_RECORD_TABLE_HEADER;

///
/// BERT Version (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_BOOT_ERROR_RECORD_TABLE_REVISION  0x01

///
/// Boot Error Region Block Status Definition
///
typedef struct {
  UINT32    UncorrectableErrorValid     : 1;
  UINT32    CorrectableErrorValid       : 1;
  UINT32    MultipleUncorrectableErrors : 1;
  UINT32    MultipleCorrectableErrors   : 1;
  UINT32    ErrorDataEntryCount         : 10;
  UINT32    Reserved                    : 18;
} EFI_ACPI_6_4_ERROR_BLOCK_STATUS;

///
/// Boot Error Region Definition
///
typedef struct {
  EFI_ACPI_6_4_ERROR_BLOCK_STATUS    BlockStatus;
  UINT32                             RawDataOffset;
  UINT32                             RawDataLength;
  UINT32                             DataLength;
  UINT32                             ErrorSeverity;
} EFI_ACPI_6_4_BOOT_ERROR_REGION_STRUCTURE;

//
// Boot Error Severity types
//
#define EFI_ACPI_6_4_ERROR_SEVERITY_RECOVERABLE  0x00
#define EFI_ACPI_6_4_ERROR_SEVERITY_FATAL        0x01
#define EFI_ACPI_6_4_ERROR_SEVERITY_CORRECTED    0x02
#define EFI_ACPI_6_4_ERROR_SEVERITY_NONE         0x03
//
// The term 'Correctable' is no longer being used as an error severity of the
// reported error since ACPI Specification Version 5.1 Errata B.
// The below macro is considered as deprecated and should no longer be used.
//
#define EFI_ACPI_6_4_ERROR_SEVERITY_CORRECTABLE  0x00

///
/// Generic Error Data Entry Definition
///
typedef struct {
  UINT8     SectionType[16];
  UINT32    ErrorSeverity;
  UINT16    Revision;
  UINT8     ValidationBits;
  UINT8     Flags;
  UINT32    ErrorDataLength;
  UINT8     FruId[16];
  UINT8     FruText[20];
  UINT8     Timestamp[8];
} EFI_ACPI_6_4_GENERIC_ERROR_DATA_ENTRY_STRUCTURE;

///
/// Generic Error Data Entry Version (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_GENERIC_ERROR_DATA_ENTRY_REVISION  0x0300

///
/// HEST - Hardware Error Source Table
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT32                         ErrorSourceCount;
} EFI_ACPI_6_4_HARDWARE_ERROR_SOURCE_TABLE_HEADER;

///
/// HEST Version (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_HARDWARE_ERROR_SOURCE_TABLE_REVISION  0x01

//
// Error Source structure types.
//
#define EFI_ACPI_6_4_IA32_ARCHITECTURE_MACHINE_CHECK_EXCEPTION  0x00
#define EFI_ACPI_6_4_IA32_ARCHITECTURE_CORRECTED_MACHINE_CHECK  0x01
#define EFI_ACPI_6_4_IA32_ARCHITECTURE_NMI_ERROR                0x02
#define EFI_ACPI_6_4_PCI_EXPRESS_ROOT_PORT_AER                  0x06
#define EFI_ACPI_6_4_PCI_EXPRESS_DEVICE_AER                     0x07
#define EFI_ACPI_6_4_PCI_EXPRESS_BRIDGE_AER                     0x08
#define EFI_ACPI_6_4_GENERIC_HARDWARE_ERROR                     0x09
#define EFI_ACPI_6_4_GENERIC_HARDWARE_ERROR_VERSION_2           0x0A
#define EFI_ACPI_6_4_IA32_ARCHITECTURE_DEFERRED_MACHINE_CHECK   0x0B

//
// Error Source structure flags.
//
#define EFI_ACPI_6_4_ERROR_SOURCE_FLAG_FIRMWARE_FIRST  (1 << 0)
#define EFI_ACPI_6_4_ERROR_SOURCE_FLAG_GLOBAL          (1 << 1)
#define EFI_ACPI_6_4_ERROR_SOURCE_FLAG_GHES_ASSIST     (1 << 2)

///
/// IA-32 Architecture Machine Check Exception Structure Definition
///
typedef struct {
  UINT16    Type;
  UINT16    SourceId;
  UINT8     Reserved0[2];
  UINT8     Flags;
  UINT8     Enabled;
  UINT32    NumberOfRecordsToPreAllocate;
  UINT32    MaxSectionsPerRecord;
  UINT64    GlobalCapabilityInitData;
  UINT64    GlobalControlInitData;
  UINT8     NumberOfHardwareBanks;
  UINT8     Reserved1[7];
} EFI_ACPI_6_4_IA32_ARCHITECTURE_MACHINE_CHECK_EXCEPTION_STRUCTURE;

///
/// IA-32 Architecture Machine Check Bank Structure Definition
///
typedef struct {
  UINT8     BankNumber;
  UINT8     ClearStatusOnInitialization;
  UINT8     StatusDataFormat;
  UINT8     Reserved0;
  UINT32    ControlRegisterMsrAddress;
  UINT64    ControlInitData;
  UINT32    StatusRegisterMsrAddress;
  UINT32    AddressRegisterMsrAddress;
  UINT32    MiscRegisterMsrAddress;
} EFI_ACPI_6_4_IA32_ARCHITECTURE_MACHINE_CHECK_ERROR_BANK_STRUCTURE;

///
/// IA-32 Architecture Machine Check Bank Structure MCA data format
///
#define EFI_ACPI_6_4_IA32_ARCHITECTURE_MACHINE_CHECK_ERROR_DATA_FORMAT_IA32     0x00
#define EFI_ACPI_6_4_IA32_ARCHITECTURE_MACHINE_CHECK_ERROR_DATA_FORMAT_INTEL64  0x01
#define EFI_ACPI_6_4_IA32_ARCHITECTURE_MACHINE_CHECK_ERROR_DATA_FORMAT_AMD64    0x02

//
// Hardware Error Notification types. All other values are reserved
//
#define EFI_ACPI_6_4_HARDWARE_ERROR_NOTIFICATION_POLLED                        0x00
#define EFI_ACPI_6_4_HARDWARE_ERROR_NOTIFICATION_EXTERNAL_INTERRUPT            0x01
#define EFI_ACPI_6_4_HARDWARE_ERROR_NOTIFICATION_LOCAL_INTERRUPT               0x02
#define EFI_ACPI_6_4_HARDWARE_ERROR_NOTIFICATION_SCI                           0x03
#define EFI_ACPI_6_4_HARDWARE_ERROR_NOTIFICATION_NMI                           0x04
#define EFI_ACPI_6_4_HARDWARE_ERROR_NOTIFICATION_CMCI                          0x05
#define EFI_ACPI_6_4_HARDWARE_ERROR_NOTIFICATION_MCE                           0x06
#define EFI_ACPI_6_4_HARDWARE_ERROR_NOTIFICATION_GPIO_SIGNAL                   0x07
#define EFI_ACPI_6_4_HARDWARE_ERROR_NOTIFICATION_ARMV8_SEA                     0x08
#define EFI_ACPI_6_4_HARDWARE_ERROR_NOTIFICATION_ARMV8_SEI                     0x09
#define EFI_ACPI_6_4_HARDWARE_ERROR_NOTIFICATION_GSIV                          0x0A
#define EFI_ACPI_6_4_HARDWARE_ERROR_NOTIFICATION_SOFTWARE_DELEGATED_EXCEPTION  0x0B

///
/// Hardware Error Notification Configuration Write Enable Structure Definition
///
typedef struct {
  UINT16    Type                           : 1;
  UINT16    PollInterval                   : 1;
  UINT16    SwitchToPollingThresholdValue  : 1;
  UINT16    SwitchToPollingThresholdWindow : 1;
  UINT16    ErrorThresholdValue            : 1;
  UINT16    ErrorThresholdWindow           : 1;
  UINT16    Reserved                       : 10;
} EFI_ACPI_6_4_HARDWARE_ERROR_NOTIFICATION_CONFIGURATION_WRITE_ENABLE_STRUCTURE;

///
/// Hardware Error Notification Structure Definition
///
typedef struct {
  UINT8                                                                            Type;
  UINT8                                                                            Length;
  EFI_ACPI_6_4_HARDWARE_ERROR_NOTIFICATION_CONFIGURATION_WRITE_ENABLE_STRUCTURE    ConfigurationWriteEnable;
  UINT32                                                                           PollInterval;
  UINT32                                                                           Vector;
  UINT32                                                                           SwitchToPollingThresholdValue;
  UINT32                                                                           SwitchToPollingThresholdWindow;
  UINT32                                                                           ErrorThresholdValue;
  UINT32                                                                           ErrorThresholdWindow;
} EFI_ACPI_6_4_HARDWARE_ERROR_NOTIFICATION_STRUCTURE;

///
/// IA-32 Architecture Corrected Machine Check Structure Definition
///
typedef struct {
  UINT16                                                Type;
  UINT16                                                SourceId;
  UINT8                                                 Reserved0[2];
  UINT8                                                 Flags;
  UINT8                                                 Enabled;
  UINT32                                                NumberOfRecordsToPreAllocate;
  UINT32                                                MaxSectionsPerRecord;
  EFI_ACPI_6_4_HARDWARE_ERROR_NOTIFICATION_STRUCTURE    NotificationStructure;
  UINT8                                                 NumberOfHardwareBanks;
  UINT8                                                 Reserved1[3];
} EFI_ACPI_6_4_IA32_ARCHITECTURE_CORRECTED_MACHINE_CHECK_STRUCTURE;

///
/// IA-32 Architecture NMI Error Structure Definition
///
typedef struct {
  UINT16    Type;
  UINT16    SourceId;
  UINT8     Reserved0[2];
  UINT32    NumberOfRecordsToPreAllocate;
  UINT32    MaxSectionsPerRecord;
  UINT32    MaxRawDataLength;
} EFI_ACPI_6_4_IA32_ARCHITECTURE_NMI_ERROR_STRUCTURE;

///
/// PCI Express Root Port AER Structure Definition
///
typedef struct {
  UINT16    Type;
  UINT16    SourceId;
  UINT8     Reserved0[2];
  UINT8     Flags;
  UINT8     Enabled;
  UINT32    NumberOfRecordsToPreAllocate;
  UINT32    MaxSectionsPerRecord;
  UINT32    Bus;
  UINT16    Device;
  UINT16    Function;
  UINT16    DeviceControl;
  UINT8     Reserved1[2];
  UINT32    UncorrectableErrorMask;
  UINT32    UncorrectableErrorSeverity;
  UINT32    CorrectableErrorMask;
  UINT32    AdvancedErrorCapabilitiesAndControl;
  UINT32    RootErrorCommand;
} EFI_ACPI_6_4_PCI_EXPRESS_ROOT_PORT_AER_STRUCTURE;

///
/// PCI Express Device AER Structure Definition
///
typedef struct {
  UINT16    Type;
  UINT16    SourceId;
  UINT8     Reserved0[2];
  UINT8     Flags;
  UINT8     Enabled;
  UINT32    NumberOfRecordsToPreAllocate;
  UINT32    MaxSectionsPerRecord;
  UINT32    Bus;
  UINT16    Device;
  UINT16    Function;
  UINT16    DeviceControl;
  UINT8     Reserved1[2];
  UINT32    UncorrectableErrorMask;
  UINT32    UncorrectableErrorSeverity;
  UINT32    CorrectableErrorMask;
  UINT32    AdvancedErrorCapabilitiesAndControl;
} EFI_ACPI_6_4_PCI_EXPRESS_DEVICE_AER_STRUCTURE;

///
/// PCI Express Bridge AER Structure Definition
///
typedef struct {
  UINT16    Type;
  UINT16    SourceId;
  UINT8     Reserved0[2];
  UINT8     Flags;
  UINT8     Enabled;
  UINT32    NumberOfRecordsToPreAllocate;
  UINT32    MaxSectionsPerRecord;
  UINT32    Bus;
  UINT16    Device;
  UINT16    Function;
  UINT16    DeviceControl;
  UINT8     Reserved1[2];
  UINT32    UncorrectableErrorMask;
  UINT32    UncorrectableErrorSeverity;
  UINT32    CorrectableErrorMask;
  UINT32    AdvancedErrorCapabilitiesAndControl;
  UINT32    SecondaryUncorrectableErrorMask;
  UINT32    SecondaryUncorrectableErrorSeverity;
  UINT32    SecondaryAdvancedErrorCapabilitiesAndControl;
} EFI_ACPI_6_4_PCI_EXPRESS_BRIDGE_AER_STRUCTURE;

///
/// Generic Hardware Error Source Structure Definition
///
typedef struct {
  UINT16                                                Type;
  UINT16                                                SourceId;
  UINT16                                                RelatedSourceId;
  UINT8                                                 Flags;
  UINT8                                                 Enabled;
  UINT32                                                NumberOfRecordsToPreAllocate;
  UINT32                                                MaxSectionsPerRecord;
  UINT32                                                MaxRawDataLength;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE                ErrorStatusAddress;
  EFI_ACPI_6_4_HARDWARE_ERROR_NOTIFICATION_STRUCTURE    NotificationStructure;
  UINT32                                                ErrorStatusBlockLength;
} EFI_ACPI_6_4_GENERIC_HARDWARE_ERROR_SOURCE_STRUCTURE;

///
/// Generic Hardware Error Source Version 2 Structure Definition
///
typedef struct {
  UINT16                                                Type;
  UINT16                                                SourceId;
  UINT16                                                RelatedSourceId;
  UINT8                                                 Flags;
  UINT8                                                 Enabled;
  UINT32                                                NumberOfRecordsToPreAllocate;
  UINT32                                                MaxSectionsPerRecord;
  UINT32                                                MaxRawDataLength;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE                ErrorStatusAddress;
  EFI_ACPI_6_4_HARDWARE_ERROR_NOTIFICATION_STRUCTURE    NotificationStructure;
  UINT32                                                ErrorStatusBlockLength;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE                ReadAckRegister;
  UINT64                                                ReadAckPreserve;
  UINT64                                                ReadAckWrite;
} EFI_ACPI_6_4_GENERIC_HARDWARE_ERROR_SOURCE_VERSION_2_STRUCTURE;

///
/// Generic Error Status Definition
///
typedef struct {
  EFI_ACPI_6_4_ERROR_BLOCK_STATUS    BlockStatus;
  UINT32                             RawDataOffset;
  UINT32                             RawDataLength;
  UINT32                             DataLength;
  UINT32                             ErrorSeverity;
} EFI_ACPI_6_4_GENERIC_ERROR_STATUS_STRUCTURE;

///
/// IA-32 Architecture Deferred Machine Check Structure Definition
///
typedef struct {
  UINT16                                                Type;
  UINT16                                                SourceId;
  UINT8                                                 Reserved0[2];
  UINT8                                                 Flags;
  UINT8                                                 Enabled;
  UINT32                                                NumberOfRecordsToPreAllocate;
  UINT32                                                MaxSectionsPerRecord;
  EFI_ACPI_6_4_HARDWARE_ERROR_NOTIFICATION_STRUCTURE    NotificationStructure;
  UINT8                                                 NumberOfHardwareBanks;
  UINT8                                                 Reserved1[3];
} EFI_ACPI_6_4_IA32_ARCHITECTURE_DEFERRED_MACHINE_CHECK_STRUCTURE;

///
/// HMAT - Heterogeneous Memory Attribute Table
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT8                          Reserved[4];
} EFI_ACPI_6_4_HETEROGENEOUS_MEMORY_ATTRIBUTE_TABLE_HEADER;

///
/// HMAT Revision (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_HETEROGENEOUS_MEMORY_ATTRIBUTE_TABLE_REVISION  0x02

///
/// HMAT types
///
#define EFI_ACPI_6_4_HMAT_TYPE_MEMORY_PROXIMITY_DOMAIN_ATTRIBUTES          0x00
#define EFI_ACPI_6_4_HMAT_TYPE_SYSTEM_LOCALITY_LATENCY_AND_BANDWIDTH_INFO  0x01
#define EFI_ACPI_6_4_HMAT_TYPE_MEMORY_SIDE_CACHE_INFO                      0x02

///
/// HMAT Structure Header
///
typedef struct {
  UINT16    Type;
  UINT8     Reserved[2];
  UINT32    Length;
} EFI_ACPI_6_4_HMAT_STRUCTURE_HEADER;

///
/// Memory Proximity Domain Attributes Structure flags
///
typedef struct {
  UINT16    InitiatorProximityDomainValid : 1;
  UINT16    Reserved                      : 15;
} EFI_ACPI_6_4_HMAT_STRUCTURE_MEMORY_PROXIMITY_DOMAIN_ATTRIBUTES_FLAGS;

///
/// Memory Proximity Domain Attributes Structure
///
typedef struct {
  UINT16                                                                  Type;
  UINT8                                                                   Reserved[2];
  UINT32                                                                  Length;
  EFI_ACPI_6_4_HMAT_STRUCTURE_MEMORY_PROXIMITY_DOMAIN_ATTRIBUTES_FLAGS    Flags;
  UINT8                                                                   Reserved1[2];
  UINT32                                                                  InitiatorProximityDomain;
  UINT32                                                                  MemoryProximityDomain;
  UINT8                                                                   Reserved2[20];
} EFI_ACPI_6_4_HMAT_STRUCTURE_MEMORY_PROXIMITY_DOMAIN_ATTRIBUTES;

///
/// System Locality Latency and Bandwidth Information Structure flags
///
typedef struct {
  UINT8    MemoryHierarchy  : 4;
  UINT8    AccessAttributes : 2;
  UINT8    Reserved         : 2;
} EFI_ACPI_6_4_HMAT_STRUCTURE_SYSTEM_LOCALITY_LATENCY_AND_BANDWIDTH_INFO_FLAGS;

///
/// System Locality Latency and Bandwidth Information Structure
///
typedef struct {
  UINT16                                                                          Type;
  UINT8                                                                           Reserved[2];
  UINT32                                                                          Length;
  EFI_ACPI_6_4_HMAT_STRUCTURE_SYSTEM_LOCALITY_LATENCY_AND_BANDWIDTH_INFO_FLAGS    Flags;
  UINT8                                                                           DataType;
  UINT8                                                                           MinTransferSize;
  UINT8                                                                           Reserved1;
  UINT32                                                                          NumberOfInitiatorProximityDomains;
  UINT32                                                                          NumberOfTargetProximityDomains;
  UINT8                                                                           Reserved2[4];
  UINT64                                                                          EntryBaseUnit;
} EFI_ACPI_6_4_HMAT_STRUCTURE_SYSTEM_LOCALITY_LATENCY_AND_BANDWIDTH_INFO;

///
/// Memory Side Cache Information Structure cache attributes
///
typedef struct {
  UINT32    TotalCacheLevels   : 4;
  UINT32    CacheLevel         : 4;
  UINT32    CacheAssociativity : 4;
  UINT32    WritePolicy        : 4;
  UINT32    CacheLineSize      : 16;
} EFI_ACPI_6_4_HMAT_STRUCTURE_MEMORY_SIDE_CACHE_INFO_CACHE_ATTRIBUTES;

///
/// Memory Side Cache Information Structure
///
typedef struct {
  UINT16                                                                 Type;
  UINT8                                                                  Reserved[2];
  UINT32                                                                 Length;
  UINT32                                                                 MemoryProximityDomain;
  UINT8                                                                  Reserved1[4];
  UINT64                                                                 MemorySideCacheSize;
  EFI_ACPI_6_4_HMAT_STRUCTURE_MEMORY_SIDE_CACHE_INFO_CACHE_ATTRIBUTES    CacheAttributes;
  UINT8                                                                  Reserved2[2];
  UINT16                                                                 NumberOfSmbiosHandles;
} EFI_ACPI_6_4_HMAT_STRUCTURE_MEMORY_SIDE_CACHE_INFO;

///
/// ERST - Error Record Serialization Table
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT32                         SerializationHeaderSize;
  UINT8                          Reserved0[4];
  UINT32                         InstructionEntryCount;
} EFI_ACPI_6_4_ERROR_RECORD_SERIALIZATION_TABLE_HEADER;

///
/// ERST Version (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_ERROR_RECORD_SERIALIZATION_TABLE_REVISION  0x01

///
/// ERST Serialization Actions
///
#define EFI_ACPI_6_4_ERST_BEGIN_WRITE_OPERATION                   0x00
#define EFI_ACPI_6_4_ERST_BEGIN_READ_OPERATION                    0x01
#define EFI_ACPI_6_4_ERST_BEGIN_CLEAR_OPERATION                   0x02
#define EFI_ACPI_6_4_ERST_END_OPERATION                           0x03
#define EFI_ACPI_6_4_ERST_SET_RECORD_OFFSET                       0x04
#define EFI_ACPI_6_4_ERST_EXECUTE_OPERATION                       0x05
#define EFI_ACPI_6_4_ERST_CHECK_BUSY_STATUS                       0x06
#define EFI_ACPI_6_4_ERST_GET_COMMAND_STATUS                      0x07
#define EFI_ACPI_6_4_ERST_GET_RECORD_IDENTIFIER                   0x08
#define EFI_ACPI_6_4_ERST_SET_RECORD_IDENTIFIER                   0x09
#define EFI_ACPI_6_4_ERST_GET_RECORD_COUNT                        0x0A
#define EFI_ACPI_6_4_ERST_BEGIN_DUMMY_WRITE_OPERATION             0x0B
#define EFI_ACPI_6_4_ERST_GET_ERROR_LOG_ADDRESS_RANGE             0x0D
#define EFI_ACPI_6_4_ERST_GET_ERROR_LOG_ADDRESS_RANGE_LENGTH      0x0E
#define EFI_ACPI_6_4_ERST_GET_ERROR_LOG_ADDRESS_RANGE_ATTRIBUTES  0x0F
#define EFI_ACPI_6_4_ERST_GET_EXECUTE_OPERATION_TIMINGS           0x10

///
/// ERST Action Command Status
///
#define EFI_ACPI_6_4_ERST_STATUS_SUCCESS                 0x00
#define EFI_ACPI_6_4_ERST_STATUS_NOT_ENOUGH_SPACE        0x01
#define EFI_ACPI_6_4_ERST_STATUS_HARDWARE_NOT_AVAILABLE  0x02
#define EFI_ACPI_6_4_ERST_STATUS_FAILED                  0x03
#define EFI_ACPI_6_4_ERST_STATUS_RECORD_STORE_EMPTY      0x04
#define EFI_ACPI_6_4_ERST_STATUS_RECORD_NOT_FOUND        0x05

///
/// ERST Serialization Instructions
///
#define EFI_ACPI_6_4_ERST_READ_REGISTER                  0x00
#define EFI_ACPI_6_4_ERST_READ_REGISTER_VALUE            0x01
#define EFI_ACPI_6_4_ERST_WRITE_REGISTER                 0x02
#define EFI_ACPI_6_4_ERST_WRITE_REGISTER_VALUE           0x03
#define EFI_ACPI_6_4_ERST_NOOP                           0x04
#define EFI_ACPI_6_4_ERST_LOAD_VAR1                      0x05
#define EFI_ACPI_6_4_ERST_LOAD_VAR2                      0x06
#define EFI_ACPI_6_4_ERST_STORE_VAR1                     0x07
#define EFI_ACPI_6_4_ERST_ADD                            0x08
#define EFI_ACPI_6_4_ERST_SUBTRACT                       0x09
#define EFI_ACPI_6_4_ERST_ADD_VALUE                      0x0A
#define EFI_ACPI_6_4_ERST_SUBTRACT_VALUE                 0x0B
#define EFI_ACPI_6_4_ERST_STALL                          0x0C
#define EFI_ACPI_6_4_ERST_STALL_WHILE_TRUE               0x0D
#define EFI_ACPI_6_4_ERST_SKIP_NEXT_INSTRUCTION_IF_TRUE  0x0E
#define EFI_ACPI_6_4_ERST_GOTO                           0x0F
#define EFI_ACPI_6_4_ERST_SET_SRC_ADDRESS_BASE           0x10
#define EFI_ACPI_6_4_ERST_SET_DST_ADDRESS_BASE           0x11
#define EFI_ACPI_6_4_ERST_MOVE_DATA                      0x12

///
/// ERST Instruction Flags
///
#define EFI_ACPI_6_4_ERST_PRESERVE_REGISTER  0x01

///
/// ERST Serialization Instruction Entry
///
typedef struct {
  UINT8                                     SerializationAction;
  UINT8                                     Instruction;
  UINT8                                     Flags;
  UINT8                                     Reserved0;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    RegisterRegion;
  UINT64                                    Value;
  UINT64                                    Mask;
} EFI_ACPI_6_4_ERST_SERIALIZATION_INSTRUCTION_ENTRY;

///
/// EINJ - Error Injection Table
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT32                         InjectionHeaderSize;
  UINT8                          InjectionFlags;
  UINT8                          Reserved0[3];
  UINT32                         InjectionEntryCount;
} EFI_ACPI_6_4_ERROR_INJECTION_TABLE_HEADER;

///
/// EINJ Version (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_ERROR_INJECTION_TABLE_REVISION  0x01

///
/// EINJ Error Injection Actions
///
#define EFI_ACPI_6_4_EINJ_BEGIN_INJECTION_OPERATION       0x00
#define EFI_ACPI_6_4_EINJ_GET_TRIGGER_ERROR_ACTION_TABLE  0x01
#define EFI_ACPI_6_4_EINJ_SET_ERROR_TYPE                  0x02
#define EFI_ACPI_6_4_EINJ_GET_ERROR_TYPE                  0x03
#define EFI_ACPI_6_4_EINJ_END_OPERATION                   0x04
#define EFI_ACPI_6_4_EINJ_EXECUTE_OPERATION               0x05
#define EFI_ACPI_6_4_EINJ_CHECK_BUSY_STATUS               0x06
#define EFI_ACPI_6_4_EINJ_GET_COMMAND_STATUS              0x07
#define EFI_ACPI_6_4_EINJ_TRIGGER_ERROR                   0xFF

///
/// EINJ Action Command Status
///
#define EFI_ACPI_6_4_EINJ_STATUS_SUCCESS          0x00
#define EFI_ACPI_6_4_EINJ_STATUS_UNKNOWN_FAILURE  0x01
#define EFI_ACPI_6_4_EINJ_STATUS_INVALID_ACCESS   0x02

///
/// EINJ Error Type Definition
///
#define EFI_ACPI_6_4_EINJ_ERROR_PROCESSOR_CORRECTABLE               (1 << 0)
#define EFI_ACPI_6_4_EINJ_ERROR_PROCESSOR_UNCORRECTABLE_NONFATAL    (1 << 1)
#define EFI_ACPI_6_4_EINJ_ERROR_PROCESSOR_UNCORRECTABLE_FATAL       (1 << 2)
#define EFI_ACPI_6_4_EINJ_ERROR_MEMORY_CORRECTABLE                  (1 << 3)
#define EFI_ACPI_6_4_EINJ_ERROR_MEMORY_UNCORRECTABLE_NONFATAL       (1 << 4)
#define EFI_ACPI_6_4_EINJ_ERROR_MEMORY_UNCORRECTABLE_FATAL          (1 << 5)
#define EFI_ACPI_6_4_EINJ_ERROR_PCI_EXPRESS_CORRECTABLE             (1 << 6)
#define EFI_ACPI_6_4_EINJ_ERROR_PCI_EXPRESS_UNCORRECTABLE_NONFATAL  (1 << 7)
#define EFI_ACPI_6_4_EINJ_ERROR_PCI_EXPRESS_UNCORRECTABLE_FATAL     (1 << 8)
#define EFI_ACPI_6_4_EINJ_ERROR_PLATFORM_CORRECTABLE                (1 << 9)
#define EFI_ACPI_6_4_EINJ_ERROR_PLATFORM_UNCORRECTABLE_NONFATAL     (1 << 10)
#define EFI_ACPI_6_4_EINJ_ERROR_PLATFORM_UNCORRECTABLE_FATAL        (1 << 11)

///
/// EINJ Injection Instructions
///
#define EFI_ACPI_6_4_EINJ_READ_REGISTER         0x00
#define EFI_ACPI_6_4_EINJ_READ_REGISTER_VALUE   0x01
#define EFI_ACPI_6_4_EINJ_WRITE_REGISTER        0x02
#define EFI_ACPI_6_4_EINJ_WRITE_REGISTER_VALUE  0x03
#define EFI_ACPI_6_4_EINJ_NOOP                  0x04

///
/// EINJ Instruction Flags
///
#define EFI_ACPI_6_4_EINJ_PRESERVE_REGISTER  0x01

///
/// EINJ Injection Instruction Entry
///
typedef struct {
  UINT8                                     InjectionAction;
  UINT8                                     Instruction;
  UINT8                                     Flags;
  UINT8                                     Reserved0;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    RegisterRegion;
  UINT64                                    Value;
  UINT64                                    Mask;
} EFI_ACPI_6_4_EINJ_INJECTION_INSTRUCTION_ENTRY;

///
/// EINJ Trigger Action Table
///
typedef struct {
  UINT32    HeaderSize;
  UINT32    Revision;
  UINT32    TableSize;
  UINT32    EntryCount;
} EFI_ACPI_6_4_EINJ_TRIGGER_ACTION_TABLE;

///
/// Platform Communications Channel Table (PCCT)
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT32                         Flags;
  UINT64                         Reserved;
} EFI_ACPI_6_4_PLATFORM_COMMUNICATION_CHANNEL_TABLE_HEADER;

///
/// PCCT Version (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_PLATFORM_COMMUNICATION_CHANNEL_TABLE_REVISION  0x02

///
/// PCCT Global Flags
///
#define EFI_ACPI_6_4_PCCT_FLAGS_PLATFORM_INTERRUPT  BIT0

//
// PCCT Subspace type
//
#define EFI_ACPI_6_4_PCCT_SUBSPACE_TYPE_GENERIC                        0x00
#define EFI_ACPI_6_4_PCCT_SUBSPACE_TYPE_1_HW_REDUCED_COMMUNICATIONS    0x01
#define EFI_ACPI_6_4_PCCT_SUBSPACE_TYPE_2_HW_REDUCED_COMMUNICATIONS    0x02
#define EFI_ACPI_6_4_PCCT_SUBSPACE_TYPE_3_EXTENDED_PCC                 0x03
#define EFI_ACPI_6_4_PCCT_SUBSPACE_TYPE_4_EXTENDED_PCC                 0x04
#define EFI_ACPI_6_4_PCCT_SUBSPACE_TYPE_5_HW_REGISTERS_COMMUNICATIONS  0x05

///
/// PCC Subspace Structure Header
///
typedef struct {
  UINT8    Type;
  UINT8    Length;
} EFI_ACPI_6_4_PCCT_SUBSPACE_HEADER;

///
/// Generic Communications Subspace Structure
///
typedef struct {
  UINT8                                     Type;
  UINT8                                     Length;
  UINT8                                     Reserved[6];
  UINT64                                    BaseAddress;
  UINT64                                    AddressLength;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    DoorbellRegister;
  UINT64                                    DoorbellPreserve;
  UINT64                                    DoorbellWrite;
  UINT32                                    NominalLatency;
  UINT32                                    MaximumPeriodicAccessRate;
  UINT16                                    MinimumRequestTurnaroundTime;
} EFI_ACPI_6_4_PCCT_SUBSPACE_GENERIC;

///
/// Generic Communications Channel Shared Memory Region
///

typedef struct {
  UINT8    Command;
  UINT8    Reserved           : 7;
  UINT8    NotifyOnCompletion : 1;
} EFI_ACPI_6_4_PCCT_GENERIC_SHARED_MEMORY_REGION_COMMAND;

typedef struct {
  UINT8    CommandComplete      : 1;
  UINT8    PlatformInterrupt    : 1;
  UINT8    Error                : 1;
  UINT8    PlatformNotification : 1;
  UINT8    Reserved             : 4;
  UINT8    Reserved1;
} EFI_ACPI_6_4_PCCT_GENERIC_SHARED_MEMORY_REGION_STATUS;

typedef struct {
  UINT32                                                    Signature;
  EFI_ACPI_6_4_PCCT_GENERIC_SHARED_MEMORY_REGION_COMMAND    Command;
  EFI_ACPI_6_4_PCCT_GENERIC_SHARED_MEMORY_REGION_STATUS     Status;
} EFI_ACPI_6_4_PCCT_GENERIC_SHARED_MEMORY_REGION_HEADER;

#define EFI_ACPI_6_4_PCCT_SUBSPACE_PLATFORM_INTERRUPT_FLAGS_POLARITY  BIT0
#define EFI_ACPI_6_4_PCCT_SUBSPACE_PLATFORM_INTERRUPT_FLAGS_MODE      BIT1

///
/// Type 1 HW-Reduced Communications Subspace Structure
///
typedef struct {
  UINT8                                     Type;
  UINT8                                     Length;
  UINT32                                    PlatformInterrupt;
  UINT8                                     PlatformInterruptFlags;
  UINT8                                     Reserved;
  UINT64                                    BaseAddress;
  UINT64                                    AddressLength;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    DoorbellRegister;
  UINT64                                    DoorbellPreserve;
  UINT64                                    DoorbellWrite;
  UINT32                                    NominalLatency;
  UINT32                                    MaximumPeriodicAccessRate;
  UINT16                                    MinimumRequestTurnaroundTime;
} EFI_ACPI_6_4_PCCT_SUBSPACE_1_HW_REDUCED_COMMUNICATIONS;

///
/// Type 2 HW-Reduced Communications Subspace Structure
///
typedef struct {
  UINT8                                     Type;
  UINT8                                     Length;
  UINT32                                    PlatformInterrupt;
  UINT8                                     PlatformInterruptFlags;
  UINT8                                     Reserved;
  UINT64                                    BaseAddress;
  UINT64                                    AddressLength;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    DoorbellRegister;
  UINT64                                    DoorbellPreserve;
  UINT64                                    DoorbellWrite;
  UINT32                                    NominalLatency;
  UINT32                                    MaximumPeriodicAccessRate;
  UINT16                                    MinimumRequestTurnaroundTime;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    PlatformInterruptAckRegister;
  UINT64                                    PlatformInterruptAckPreserve;
  UINT64                                    PlatformInterruptAckWrite;
} EFI_ACPI_6_4_PCCT_SUBSPACE_2_HW_REDUCED_COMMUNICATIONS;

///
/// Type 3 Extended PCC Subspace Structure
///
typedef struct {
  UINT8                                     Type;
  UINT8                                     Length;
  UINT32                                    PlatformInterrupt;
  UINT8                                     PlatformInterruptFlags;
  UINT8                                     Reserved;
  UINT64                                    BaseAddress;
  UINT32                                    AddressLength;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    DoorbellRegister;
  UINT64                                    DoorbellPreserve;
  UINT64                                    DoorbellWrite;
  UINT32                                    NominalLatency;
  UINT32                                    MaximumPeriodicAccessRate;
  UINT32                                    MinimumRequestTurnaroundTime;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    PlatformInterruptAckRegister;
  UINT64                                    PlatformInterruptAckPreserve;
  UINT64                                    PlatformInterruptAckSet;
  UINT8                                     Reserved1[8];
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    CommandCompleteCheckRegister;
  UINT64                                    CommandCompleteCheckMask;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    CommandCompleteUpdateRegister;
  UINT64                                    CommandCompleteUpdatePreserve;
  UINT64                                    CommandCompleteUpdateSet;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    ErrorStatusRegister;
  UINT64                                    ErrorStatusMask;
} EFI_ACPI_6_4_PCCT_SUBSPACE_3_EXTENDED_PCC;

///
/// Type 4 Extended PCC Subspace Structure
///
typedef EFI_ACPI_6_4_PCCT_SUBSPACE_3_EXTENDED_PCC EFI_ACPI_6_4_PCCT_SUBSPACE_4_EXTENDED_PCC;

#define EFI_ACPI_6_4_PCCT_MASTER_SLAVE_COMMUNICATIONS_CHANNEL_FLAGS_NOTIFY_ON_COMPLETION  BIT0

typedef struct {
  UINT32    Signature;
  UINT32    Flags;
  UINT32    Length;
  UINT32    Command;
} EFI_ACPI_6_4_PCCT_EXTENDED_PCC_SHARED_MEMORY_REGION_HEADER;

///
/// Type 5 HW Registers based Communications Subspace Structure
///
typedef struct {
  UINT8                                     Type;
  UINT8                                     Length;
  UINT16                                    Version;
  UINT64                                    BaseAddress;
  UINT64                                    SharedMemoryRangeLength;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    DoorbellRegister;
  UINT64                                    DoorbellPreserve;
  UINT64                                    DoorbellWrite;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    CommandCompleteCheckRegister;
  UINT64                                    CommandCompleteCheckMask;
  EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE    ErrorStatusRegister;
  UINT64                                    ErrorStatusMask;
  UINT32                                    NominalLatency;
  UINT32                                    MinimumRequestTurnaroundTime;
} EFI_ACPI_6_4_PCCT_SUBSPACE_5_HW_REGISTERS_COMMUNICATIONS;

///
/// Reduced PCC Subspace Shared Memory Region
///
typedef struct {
  UINT32    Signature;
  // UINT8       CommunicationSubspace[];
} EFI_6_4_PCCT_REDUCED_PCC_SUBSPACE_SHARED_MEMORY_REGION;

///
/// Platform Debug Trigger Table (PDTT)
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT8                          TriggerCount;
  UINT8                          Reserved[3];
  UINT32                         TriggerIdentifierArrayOffset;
} EFI_ACPI_6_4_PLATFORM_DEBUG_TRIGGER_TABLE_HEADER;

///
/// PDTT Revision (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_PLATFORM_DEBUG_TRIGGER_TABLE_REVISION  0x00

///
/// PDTT Platform Communication Channel Identifier Structure
///
typedef struct {
  UINT16    SubChannelIdentifer : 8;
  UINT16    Runtime             : 1;
  UINT16    WaitForCompletion   : 1;
  UINT16    TriggerOrder        : 1;
  UINT16    Reserved            : 5;
} EFI_ACPI_6_4_PDTT_PCC_IDENTIFIER;

///
/// PCC Commands Codes used by Platform Debug Trigger Table
///
#define EFI_ACPI_6_4_PDTT_PCC_COMMAND_DOORBELL_ONLY    0x00
#define EFI_ACPI_6_4_PDTT_PCC_COMMAND_VENDOR_SPECIFIC  0x01

///
/// PDTT Platform Communication Channel
///
typedef EFI_ACPI_6_4_PCCT_GENERIC_SHARED_MEMORY_REGION_HEADER EFI_ACPI_6_4_PDTT_PCC;

///
/// Processor Properties Topology Table (PPTT)
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
} EFI_ACPI_6_4_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE_HEADER;

///
/// PPTT Revision (as defined in ACPI 6.4 spec.)
///
#define EFI_ACPI_6_4_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE_REVISION  0x03

///
/// PPTT types
///
#define EFI_ACPI_6_4_PPTT_TYPE_PROCESSOR  0x00
#define EFI_ACPI_6_4_PPTT_TYPE_CACHE      0x01

///
/// PPTT Structure Header
///
typedef struct {
  UINT8    Type;
  UINT8    Length;
  UINT8    Reserved[2];
} EFI_ACPI_6_4_PPTT_STRUCTURE_HEADER;

///
/// For PPTT struct processor flags
///
#define EFI_ACPI_6_4_PPTT_PACKAGE_NOT_PHYSICAL          0x0
#define EFI_ACPI_6_4_PPTT_PACKAGE_PHYSICAL              0x1
#define EFI_ACPI_6_4_PPTT_PROCESSOR_ID_INVALID          0x0
#define EFI_ACPI_6_4_PPTT_PROCESSOR_ID_VALID            0x1
#define EFI_ACPI_6_4_PPTT_PROCESSOR_IS_NOT_THREAD       0x0
#define EFI_ACPI_6_4_PPTT_PROCESSOR_IS_THREAD           0x1
#define EFI_ACPI_6_4_PPTT_NODE_IS_NOT_LEAF              0x0
#define EFI_ACPI_6_4_PPTT_NODE_IS_LEAF                  0x1
#define EFI_ACPI_6_4_PPTT_IMPLEMENTATION_NOT_IDENTICAL  0x0
#define EFI_ACPI_6_4_PPTT_IMPLEMENTATION_IDENTICAL      0x1

///
/// Processor hierarchy node structure flags
///
typedef struct {
  UINT32    PhysicalPackage         : 1;
  UINT32    AcpiProcessorIdValid    : 1;
  UINT32    ProcessorIsAThread      : 1;
  UINT32    NodeIsALeaf             : 1;
  UINT32    IdenticalImplementation : 1;
  UINT32    Reserved                : 27;
} EFI_ACPI_6_4_PPTT_STRUCTURE_PROCESSOR_FLAGS;

///
/// Processor hierarchy node structure
///
typedef struct {
  UINT8                                          Type;
  UINT8                                          Length;
  UINT8                                          Reserved[2];
  EFI_ACPI_6_4_PPTT_STRUCTURE_PROCESSOR_FLAGS    Flags;
  UINT32                                         Parent;
  UINT32                                         AcpiProcessorId;
  UINT32                                         NumberOfPrivateResources;
} EFI_ACPI_6_4_PPTT_STRUCTURE_PROCESSOR;

///
/// For PPTT struct cache flags
///
#define EFI_ACPI_6_4_PPTT_CACHE_SIZE_INVALID       0x0
#define EFI_ACPI_6_4_PPTT_CACHE_SIZE_VALID         0x1
#define EFI_ACPI_6_4_PPTT_NUMBER_OF_SETS_INVALID   0x0
#define EFI_ACPI_6_4_PPTT_NUMBER_OF_SETS_VALID     0x1
#define EFI_ACPI_6_4_PPTT_ASSOCIATIVITY_INVALID    0x0
#define EFI_ACPI_6_4_PPTT_ASSOCIATIVITY_VALID      0x1
#define EFI_ACPI_6_4_PPTT_ALLOCATION_TYPE_INVALID  0x0
#define EFI_ACPI_6_4_PPTT_ALLOCATION_TYPE_VALID    0x1
#define EFI_ACPI_6_4_PPTT_CACHE_TYPE_INVALID       0x0
#define EFI_ACPI_6_4_PPTT_CACHE_TYPE_VALID         0x1
#define EFI_ACPI_6_4_PPTT_WRITE_POLICY_INVALID     0x0
#define EFI_ACPI_6_4_PPTT_WRITE_POLICY_VALID       0x1
#define EFI_ACPI_6_4_PPTT_LINE_SIZE_INVALID        0x0
#define EFI_ACPI_6_4_PPTT_LINE_SIZE_VALID          0x1
#define EFI_ACPI_6_4_PPTT_CACHE_ID_INVALID         0x0
#define EFI_ACPI_6_4_PPTT_CACHE_ID_VALID           0x1

///
/// Cache Type Structure flags
///
typedef struct {
  UINT32    SizePropertyValid   : 1;
  UINT32    NumberOfSetsValid   : 1;
  UINT32    AssociativityValid  : 1;
  UINT32    AllocationTypeValid : 1;
  UINT32    CacheTypeValid      : 1;
  UINT32    WritePolicyValid    : 1;
  UINT32    LineSizeValid       : 1;
  UINT32    CacheIdValid        : 1;
  UINT32    Reserved            : 24;
} EFI_ACPI_6_4_PPTT_STRUCTURE_CACHE_FLAGS;

///
/// For cache attributes
///
#define EFI_ACPI_6_4_CACHE_ATTRIBUTES_ALLOCATION_READ             0x0
#define EFI_ACPI_6_4_CACHE_ATTRIBUTES_ALLOCATION_WRITE            0x1
#define EFI_ACPI_6_4_CACHE_ATTRIBUTES_ALLOCATION_READ_WRITE       0x2
#define EFI_ACPI_6_4_CACHE_ATTRIBUTES_CACHE_TYPE_DATA             0x0
#define EFI_ACPI_6_4_CACHE_ATTRIBUTES_CACHE_TYPE_INSTRUCTION      0x1
#define EFI_ACPI_6_4_CACHE_ATTRIBUTES_CACHE_TYPE_UNIFIED          0x2
#define EFI_ACPI_6_4_CACHE_ATTRIBUTES_WRITE_POLICY_WRITE_BACK     0x0
#define EFI_ACPI_6_4_CACHE_ATTRIBUTES_WRITE_POLICY_WRITE_THROUGH  0x1

///
/// Cache Type Structure cache attributes
///
typedef struct {
  UINT8    AllocationType : 2;
  UINT8    CacheType      : 2;
  UINT8    WritePolicy    : 1;
  UINT8    Reserved       : 3;
} EFI_ACPI_6_4_PPTT_STRUCTURE_CACHE_ATTRIBUTES;

///
/// Cache Type Structure
///
typedef struct {
  UINT8                                           Type;
  UINT8                                           Length;
  UINT8                                           Reserved[2];
  EFI_ACPI_6_4_PPTT_STRUCTURE_CACHE_FLAGS         Flags;
  UINT32                                          NextLevelOfCache;
  UINT32                                          Size;
  UINT32                                          NumberOfSets;
  UINT8                                           Associativity;
  EFI_ACPI_6_4_PPTT_STRUCTURE_CACHE_ATTRIBUTES    Attributes;
  UINT16                                          LineSize;
  UINT32                                          CacheId;
} EFI_ACPI_6_4_PPTT_STRUCTURE_CACHE;

///
/// Platform Health Assessment Table (PHAT) Format
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  // UINT8                         PlatformTelemetryRecords[];
} EFI_ACPI_6_4_PLATFORM_HEALTH_ASSESSMENT_TABLE;

#define EFI_ACPI_6_4_PLATFORM_HEALTH_ASSESSMENT_TABLE_REVISION  0x01

///
/// PHAT Record Format
///
typedef struct {
  UINT16    PlatformHealthAssessmentRecordType;
  UINT16    RecordLength;
  UINT8     Revision;
  // UINT8   Data[];
} EFI_ACPI_6_4_PHAT_RECORD;

///
/// PHAT Record Type Format
///
#define EFI_ACPI_6_4_PHAT_RECORD_TYPE_FIRMWARE_VERSION_DATA_RECORD  0x0000
#define EFI_ACPI_6_4_PHAT_RECORD_TYPE_FIRMWARE_HEALTH_DATA_RECORD   0x0001

///
/// PHAT Version Element
///
typedef struct {
  GUID      ComponentId;
  UINT64    VersionValue;
  UINT32    ProducerId;
} EFI_ACPI_6_4_PHAT_VERSION_ELEMENT;

///
/// PHAT Firmware Version Data Record
///
typedef struct {
  UINT16    PlatformRecordType;
  UINT16    RecordLength;
  UINT8     Revision;
  UINT8     Reserved[3];
  UINT32    RecordCount;
  // UINT8   PhatVersionElement[];
} EFI_ACPI_6_4_PHAT_FIRMWARE_VERISON_DATA_RECORD;

#define EFI_ACPI_6_4_PHAT_FIRMWARE_VERSION_DATA_RECORD_REVISION  0x01

///
/// Firmware Health Data Record Structure
///
typedef struct {
  UINT16    PlatformRecordType;
  UINT16    RecordLength;
  UINT8     Revision;
  UINT16    Reserved;
  UINT8     AmHealthy;
  GUID      DeviceSignature;
  UINT32    DeviceSpecificDataOffset;
  // UINT8   DevicePath[];
  // UINT8   DeviceSpecificData[];
} EFI_ACPI_6_4_PHAT_FIRMWARE_HEALTH_DATA_RECORD_STRUCTURE;

#define EFI_ACPI_6_4_PHAT_FIRMWARE_HEALTH_DATA_RECORD_REVISION  0x01

///
/// Firmware Health Data Record device health state
///
#define EFI_ACPI_6_4_PHAT_FIRMWARE_HEALTH_DATA_RECORD_ERRORS_FOUND     0x00
#define EFI_ACPI_6_4_PHAT_FIRMWARE_HEALTH_DATA_RECORD_NO_ERRORS_FOUND  0x01
#define EFI_ACPI_6_4_PHAT_FIRMWARE_HEALTH_DATA_RECORD_UNKNOWN          0x02
#define EFI_ACPI_6_4_PHAT_FIRMWARE_HEALTH_DATA_RECORD_ADVISORY         0x03

//
// Known table signatures
//

///
/// "RSD PTR " Root System Description Pointer
///
#define EFI_ACPI_6_4_ROOT_SYSTEM_DESCRIPTION_POINTER_SIGNATURE  SIGNATURE_64('R', 'S', 'D', ' ', 'P', 'T', 'R', ' ')

///
/// "APIC" Multiple APIC Description Table
///
#define EFI_ACPI_6_4_MULTIPLE_APIC_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('A', 'P', 'I', 'C')

///
/// "APMT" Arm Performance Monitoring Unit Table
///
#define EFI_ACPI_6_4_ARM_PERFORMANCE_MONITORING_UNIT_TABLE_SIGNATURE  SIGNATURE_32('A', 'P', 'M', 'T')

///
/// "BERT" Boot Error Record Table
///
#define EFI_ACPI_6_4_BOOT_ERROR_RECORD_TABLE_SIGNATURE  SIGNATURE_32('B', 'E', 'R', 'T')

///
/// "BGRT" Boot Graphics Resource Table
///
#define EFI_ACPI_6_4_BOOT_GRAPHICS_RESOURCE_TABLE_SIGNATURE  SIGNATURE_32('B', 'G', 'R', 'T')

///
/// "CDIT" Component Distance Information Table
///
#define EFI_ACPI_6_4_COMPONENT_DISTANCE_INFORMATION_TABLE_SIGNATURE  SIGNATURE_32('C', 'D', 'I', 'T')

///
/// "CPEP" Corrected Platform Error Polling Table
///
#define EFI_ACPI_6_4_CORRECTED_PLATFORM_ERROR_POLLING_TABLE_SIGNATURE  SIGNATURE_32('C', 'P', 'E', 'P')

///
/// "CRAT" Component Resource Attribute Table
///
#define EFI_ACPI_6_4_COMPONENT_RESOURCE_ATTRIBUTE_TABLE_SIGNATURE  SIGNATURE_32('C', 'R', 'A', 'T')

///
/// "DSDT" Differentiated System Description Table
///
#define EFI_ACPI_6_4_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('D', 'S', 'D', 'T')

///
/// "ECDT" Embedded Controller Boot Resources Table
///
#define EFI_ACPI_6_4_EMBEDDED_CONTROLLER_BOOT_RESOURCES_TABLE_SIGNATURE  SIGNATURE_32('E', 'C', 'D', 'T')

///
/// "EINJ" Error Injection Table
///
#define EFI_ACPI_6_4_ERROR_INJECTION_TABLE_SIGNATURE  SIGNATURE_32('E', 'I', 'N', 'J')

///
/// "ERST" Error Record Serialization Table
///
#define EFI_ACPI_6_4_ERROR_RECORD_SERIALIZATION_TABLE_SIGNATURE  SIGNATURE_32('E', 'R', 'S', 'T')

///
/// "FACP" Fixed ACPI Description Table
///
#define EFI_ACPI_6_4_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('F', 'A', 'C', 'P')

///
/// "FACS" Firmware ACPI Control Structure
///
#define EFI_ACPI_6_4_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE  SIGNATURE_32('F', 'A', 'C', 'S')

///
/// "FPDT" Firmware Performance Data Table
///
#define EFI_ACPI_6_4_FIRMWARE_PERFORMANCE_DATA_TABLE_SIGNATURE  SIGNATURE_32('F', 'P', 'D', 'T')

///
/// "GTDT" Generic Timer Description Table
///
#define EFI_ACPI_6_4_GENERIC_TIMER_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('G', 'T', 'D', 'T')

///
/// "HEST" Hardware Error Source Table
///
#define EFI_ACPI_6_4_HARDWARE_ERROR_SOURCE_TABLE_SIGNATURE  SIGNATURE_32('H', 'E', 'S', 'T')

///
/// "HMAT" Heterogeneous Memory Attribute Table
///
#define EFI_ACPI_6_4_HETEROGENEOUS_MEMORY_ATTRIBUTE_TABLE_SIGNATURE  SIGNATURE_32('H', 'M', 'A', 'T')

///
/// "MPST" Memory Power State Table
///
#define EFI_ACPI_6_4_MEMORY_POWER_STATE_TABLE_SIGNATURE  SIGNATURE_32('M', 'P', 'S', 'T')

///
/// "MSCT" Maximum System Characteristics Table
///
#define EFI_ACPI_6_4_MAXIMUM_SYSTEM_CHARACTERISTICS_TABLE_SIGNATURE  SIGNATURE_32('M', 'S', 'C', 'T')

///
/// "NFIT" NVDIMM Firmware Interface Table
///
#define EFI_ACPI_6_4_NVDIMM_FIRMWARE_INTERFACE_TABLE_STRUCTURE_SIGNATURE  SIGNATURE_32('N', 'F', 'I', 'T')

///
/// "PDTT" Platform Debug Trigger Table
///
#define EFI_ACPI_6_4_PLATFORM_DEBUG_TRIGGER_TABLE_STRUCTURE_SIGNATURE  SIGNATURE_32('P', 'D', 'T', 'T')

///
/// "PMTT" Platform Memory Topology Table
///
#define EFI_ACPI_6_4_PLATFORM_MEMORY_TOPOLOGY_TABLE_SIGNATURE  SIGNATURE_32('P', 'M', 'T', 'T')

///
/// "PPTT" Processor Properties Topology Table
///
#define EFI_ACPI_6_4_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE_STRUCTURE_SIGNATURE  SIGNATURE_32('P', 'P', 'T', 'T')

///
/// "PSDT" Persistent System Description Table
///
#define EFI_ACPI_6_4_PERSISTENT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('P', 'S', 'D', 'T')

///
/// "RASF" ACPI RAS Feature Table
///
#define EFI_ACPI_6_4_ACPI_RAS_FEATURE_TABLE_SIGNATURE  SIGNATURE_32('R', 'A', 'S', 'F')

///
/// "RSDT" Root System Description Table
///
#define EFI_ACPI_6_4_ROOT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('R', 'S', 'D', 'T')

///
/// "SBST" Smart Battery Specification Table
///
#define EFI_ACPI_6_4_SMART_BATTERY_SPECIFICATION_TABLE_SIGNATURE  SIGNATURE_32('S', 'B', 'S', 'T')

///
/// "SDEV" Secure DEVices Table
///
#define EFI_ACPI_6_4_SECURE_DEVICES_TABLE_SIGNATURE  SIGNATURE_32('S', 'D', 'E', 'V')

///
/// "SLIT" System Locality Information Table
///
#define EFI_ACPI_6_4_SYSTEM_LOCALITY_INFORMATION_TABLE_SIGNATURE  SIGNATURE_32('S', 'L', 'I', 'T')

///
/// "SRAT" System Resource Affinity Table
///
#define EFI_ACPI_6_4_SYSTEM_RESOURCE_AFFINITY_TABLE_SIGNATURE  SIGNATURE_32('S', 'R', 'A', 'T')

///
/// "SSDT" Secondary System Description Table
///
#define EFI_ACPI_6_4_SECONDARY_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('S', 'S', 'D', 'T')

///
/// "XSDT" Extended System Description Table
///
#define EFI_ACPI_6_4_EXTENDED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('X', 'S', 'D', 'T')

///
/// "BOOT" MS Simple Boot Spec
///
#define EFI_ACPI_6_4_SIMPLE_BOOT_FLAG_TABLE_SIGNATURE  SIGNATURE_32('B', 'O', 'O', 'T')

///
/// "CSRT" MS Core System Resource Table
///
#define EFI_ACPI_6_4_CORE_SYSTEM_RESOURCE_TABLE_SIGNATURE  SIGNATURE_32('C', 'S', 'R', 'T')

///
/// "DBG2" MS Debug Port 2 Spec
///
#define EFI_ACPI_6_4_DEBUG_PORT_2_TABLE_SIGNATURE  SIGNATURE_32('D', 'B', 'G', '2')

///
/// "DBGP" MS Debug Port Spec
///
#define EFI_ACPI_6_4_DEBUG_PORT_TABLE_SIGNATURE  SIGNATURE_32('D', 'B', 'G', 'P')

///
/// "DMAR" DMA Remapping Table
///
#define EFI_ACPI_6_4_DMA_REMAPPING_TABLE_SIGNATURE  SIGNATURE_32('D', 'M', 'A', 'R')

///
/// "DRTM" Dynamic Root of Trust for Measurement Table
///
#define EFI_ACPI_6_4_DYNAMIC_ROOT_OF_TRUST_FOR_MEASUREMENT_TABLE_SIGNATURE  SIGNATURE_32('D', 'R', 'T', 'M')

///
/// "ETDT" Event Timer Description Table
///
#define EFI_ACPI_6_4_EVENT_TIMER_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('E', 'T', 'D', 'T')

///
/// "HPET" IA-PC High Precision Event Timer Table
///
#define EFI_ACPI_6_4_HIGH_PRECISION_EVENT_TIMER_TABLE_SIGNATURE  SIGNATURE_32('H', 'P', 'E', 'T')

///
/// "iBFT" iSCSI Boot Firmware Table
///
#define EFI_ACPI_6_4_ISCSI_BOOT_FIRMWARE_TABLE_SIGNATURE  SIGNATURE_32('i', 'B', 'F', 'T')

///
/// "IORT" I/O Remapping Table
///
#define EFI_ACPI_6_4_IO_REMAPPING_TABLE_SIGNATURE  SIGNATURE_32('I', 'O', 'R', 'T')

///
/// "IVRS" I/O Virtualization Reporting Structure
///
#define EFI_ACPI_6_4_IO_VIRTUALIZATION_REPORTING_STRUCTURE_SIGNATURE  SIGNATURE_32('I', 'V', 'R', 'S')

///
/// "LPIT" Low Power Idle Table
///
#define EFI_ACPI_6_4_LOW_POWER_IDLE_TABLE_STRUCTURE_SIGNATURE  SIGNATURE_32('L', 'P', 'I', 'T')

///
/// "MCFG" PCI Express Memory Mapped Configuration Space Base Address Description Table
///
#define EFI_ACPI_6_4_PCI_EXPRESS_MEMORY_MAPPED_CONFIGURATION_SPACE_BASE_ADDRESS_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('M', 'C', 'F', 'G')

///
/// "MCHI" Management Controller Host Interface Table
///
#define EFI_ACPI_6_4_MANAGEMENT_CONTROLLER_HOST_INTERFACE_TABLE_SIGNATURE  SIGNATURE_32('M', 'C', 'H', 'I')

///
/// "MSDM" MS Data Management Table
///
#define EFI_ACPI_6_4_DATA_MANAGEMENT_TABLE_SIGNATURE  SIGNATURE_32('M', 'S', 'D', 'M')

///
/// "PCCT" Platform Communications Channel Table
///
#define EFI_ACPI_6_4_PLATFORM_COMMUNICATIONS_CHANNEL_TABLE_SIGNATURE  SIGNATURE_32('P', 'C', 'C', 'T')

///
/// "PHAT" Platform Health Assessment Table
///
#define EFI_ACPI_6_4_PLATFORM_HEALTH_ASSESSMENT_TABLE_SIGNATURE  SIGNATURE_32('P', 'H', 'A', 'T')

///
/// "SDEI" Software Delegated Exceptions Interface Table
///
#define EFI_ACPI_6_4_SOFTWARE_DELEGATED_EXCEPTIONS_INTERFACE_TABLE_SIGNATURE  SIGNATURE_32('S', 'D', 'E', 'I')

///
/// "SLIC" MS Software Licensing Table Specification
///
#define EFI_ACPI_6_4_SOFTWARE_LICENSING_TABLE_SIGNATURE  SIGNATURE_32('S', 'L', 'I', 'C')

///
/// "SPCR" Serial Port Concole Redirection Table
///
#define EFI_ACPI_6_4_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_SIGNATURE  SIGNATURE_32('S', 'P', 'C', 'R')

///
/// "SPMI" Server Platform Management Interface Table
///
#define EFI_ACPI_6_4_SERVER_PLATFORM_MANAGEMENT_INTERFACE_TABLE_SIGNATURE  SIGNATURE_32('S', 'P', 'M', 'I')

///
/// "STAO" _STA Override Table
///
#define EFI_ACPI_6_4_STA_OVERRIDE_TABLE_SIGNATURE  SIGNATURE_32('S', 'T', 'A', 'O')

///
/// "TCPA" Trusted Computing Platform Alliance Capabilities Table
///
#define EFI_ACPI_6_4_TRUSTED_COMPUTING_PLATFORM_ALLIANCE_CAPABILITIES_TABLE_SIGNATURE  SIGNATURE_32('T', 'C', 'P', 'A')

///
/// "TPM2" Trusted Computing Platform 1 Table
///
#define EFI_ACPI_6_4_TRUSTED_COMPUTING_PLATFORM_2_TABLE_SIGNATURE  SIGNATURE_32('T', 'P', 'M', '2')

///
/// "UEFI" UEFI ACPI Data Table
///
#define EFI_ACPI_6_4_UEFI_ACPI_DATA_TABLE_SIGNATURE  SIGNATURE_32('U', 'E', 'F', 'I')

///
/// "WAET" Windows ACPI Emulated Devices Table
///
#define EFI_ACPI_6_4_WINDOWS_ACPI_EMULATED_DEVICES_TABLE_SIGNATURE  SIGNATURE_32('W', 'A', 'E', 'T')

///
/// "WDAT" Watchdog Action Table
///
#define EFI_ACPI_6_4_WATCHDOG_ACTION_TABLE_SIGNATURE  SIGNATURE_32('W', 'D', 'A', 'T')

///
/// "WDRT" Watchdog Resource Table
///
#define EFI_ACPI_6_4_WATCHDOG_RESOURCE_TABLE_SIGNATURE  SIGNATURE_32('W', 'D', 'R', 'T')

///
/// "WPBT" MS Platform Binary Table
///
#define EFI_ACPI_6_4_PLATFORM_BINARY_TABLE_SIGNATURE  SIGNATURE_32('W', 'P', 'B', 'T')

///
/// "WSMT" Windows SMM Security Mitigation Table
///
#define EFI_ACPI_6_4_WINDOWS_SMM_SECURITY_MITIGATION_TABLE_SIGNATURE  SIGNATURE_32('W', 'S', 'M', 'T')

///
/// "XENV" Xen Project Table
///
#define EFI_ACPI_6_4_XEN_PROJECT_TABLE_SIGNATURE  SIGNATURE_32('X', 'E', 'N', 'V')

#pragma pack()

#endif