[edk2-devel] [PATCH v1 1/2] MdePkg: Add ACPI 6.5 header

Chao Li lichao at loongson.cn
Tue Jan 17 12:55:37 UTC 2023


Create Acpi65.h, which is copied from Acpi64.h, and make the following
changes:

1. Replace all occurences of "6.4/6_4" with "6.5/6_5".
2. Incremented FADT minor revision.
3. Make Acpi65.h the latest ACPI definitions that Acpi.h contains.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4306

Cc: Michael D Kinney <michael.d.kinney at intel.com>
Cc: Liming Gao <gaoliming at byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu at intel.com>
Signed-off-by: Chao Li <lichao at loongson.cn>
---
 MdePkg/Include/IndustryStandard/Acpi.h   |    3 +-
 MdePkg/Include/IndustryStandard/Acpi65.h | 3163 ++++++++++++++++++++++
 2 files changed, 3165 insertions(+), 1 deletion(-)
 create mode 100644 MdePkg/Include/IndustryStandard/Acpi65.h

diff --git a/MdePkg/Include/IndustryStandard/Acpi.h b/MdePkg/Include/IndustryStandard/Acpi.h
index 05969a36b1..a0610d4a4c 100644
--- a/MdePkg/Include/IndustryStandard/Acpi.h
+++ b/MdePkg/Include/IndustryStandard/Acpi.h
@@ -4,6 +4,7 @@
 
   Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>
   Copyright (c) 2019 - 2021, ARM Ltd. All rights reserved.<BR>
+  Copyright (c) 2023, Loongson Technology Corporation Limited. All rights reserved.<BR>
   SPDX-License-Identifier: BSD-2-Clause-Patent
 
 **/
@@ -11,6 +12,6 @@
 #ifndef _ACPI_H_
 #define _ACPI_H_
 
-#include <IndustryStandard/Acpi64.h>
+#include <IndustryStandard/Acpi65.h>
 
 #endif
diff --git a/MdePkg/Include/IndustryStandard/Acpi65.h b/MdePkg/Include/IndustryStandard/Acpi65.h
new file mode 100644
index 0000000000..fdca5316a9
--- /dev/null
+++ b/MdePkg/Include/IndustryStandard/Acpi65.h
@@ -0,0 +1,3163 @@
+/** @file
+  ACPI 6.5 definitions from the ACPI Specification Revision 6.5 Aug, 2022.
+
+  Copyright (c) 2017 - 2022, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2019 - 2021, ARM Ltd. All rights reserved.<BR>
+  Copyright (c) 2023, Loongson Technology Corporation Limited. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#ifndef ACPI_6_5_H_
+#define ACPI_6_5_H_
+
+#include <IndustryStandard/Acpi64.h>
+
+//
+// Ensure proper structure formats
+//
+#pragma pack(1)
+
+///
+/// ACPI 6.5 Generic Address Space definition
+///
+typedef struct {
+  UINT8     AddressSpaceId;
+  UINT8     RegisterBitWidth;
+  UINT8     RegisterBitOffset;
+  UINT8     AccessSize;
+  UINT64    Address;
+} EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE;
+
+//
+// Generic Address Space Address IDs
+//
+#define EFI_ACPI_6_5_SYSTEM_MEMORY                   0x00
+#define EFI_ACPI_6_5_SYSTEM_IO                       0x01
+#define EFI_ACPI_6_5_PCI_CONFIGURATION_SPACE         0x02
+#define EFI_ACPI_6_5_EMBEDDED_CONTROLLER             0x03
+#define EFI_ACPI_6_5_SMBUS                           0x04
+#define EFI_ACPI_6_5_SYSTEM_CMOS                     0x05
+#define EFI_ACPI_6_5_PCI_BAR_TARGET                  0x06
+#define EFI_ACPI_6_5_IPMI                            0x07
+#define EFI_ACPI_6_5_GENERAL_PURPOSE_IO              0x08
+#define EFI_ACPI_6_5_GENERIC_SERIAL_BUS              0x09
+#define EFI_ACPI_6_5_PLATFORM_COMMUNICATION_CHANNEL  0x0A
+#define EFI_ACPI_6_5_FUNCTIONAL_FIXED_HARDWARE       0x7F
+
+//
+// Generic Address Space Access Sizes
+//
+#define EFI_ACPI_6_5_UNDEFINED  0
+#define EFI_ACPI_6_5_BYTE       1
+#define EFI_ACPI_6_5_WORD       2
+#define EFI_ACPI_6_5_DWORD      3
+#define EFI_ACPI_6_5_QWORD      4
+
+//
+// ACPI 6.5 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_5_ROOT_SYSTEM_DESCRIPTION_POINTER;
+
+///
+/// RSD_PTR Revision (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_ROOT_SYSTEM_DESCRIPTION_POINTER_REVISION  0x02 ///< ACPISpec (Revision 6.5) 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_5_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 6.5 spec.)
+///
+#define EFI_ACPI_6_5_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 6.5 spec.)
+///
+#define EFI_ACPI_6_5_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_5_GENERIC_ADDRESS_STRUCTURE    ResetReg;
+  UINT8                                     ResetValue;
+  UINT16                                    ArmBootArch;
+  UINT8                                     MinorVersion;
+  UINT64                                    XFirmwareCtrl;
+  UINT64                                    XDsdt;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    XPm1aEvtBlk;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    XPm1bEvtBlk;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    XPm1aCntBlk;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    XPm1bCntBlk;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    XPm2CntBlk;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    XPmTmrBlk;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    XGpe0Blk;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    XGpe1Blk;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    SleepControlReg;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    SleepStatusReg;
+  UINT64                                    HypervisorVendorIdentity;
+} EFI_ACPI_6_5_FIXED_ACPI_DESCRIPTION_TABLE;
+
+///
+/// FADT Version (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_FIXED_ACPI_DESCRIPTION_TABLE_REVISION        0x06
+#define EFI_ACPI_6_5_FIXED_ACPI_DESCRIPTION_TABLE_MINOR_REVISION  0x05
+
+//
+// Fixed ACPI Description Table Preferred Power Management Profile
+//
+#define EFI_ACPI_6_5_PM_PROFILE_UNSPECIFIED         0
+#define EFI_ACPI_6_5_PM_PROFILE_DESKTOP             1
+#define EFI_ACPI_6_5_PM_PROFILE_MOBILE              2
+#define EFI_ACPI_6_5_PM_PROFILE_WORKSTATION         3
+#define EFI_ACPI_6_5_PM_PROFILE_ENTERPRISE_SERVER   4
+#define EFI_ACPI_6_5_PM_PROFILE_SOHO_SERVER         5
+#define EFI_ACPI_6_5_PM_PROFILE_APPLIANCE_PC        6
+#define EFI_ACPI_6_5_PM_PROFILE_PERFORMANCE_SERVER  7
+#define EFI_ACPI_6_5_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_5_LEGACY_DEVICES        BIT0
+#define EFI_ACPI_6_5_8042                  BIT1
+#define EFI_ACPI_6_5_VGA_NOT_PRESENT       BIT2
+#define EFI_ACPI_6_5_MSI_NOT_SUPPORTED     BIT3
+#define EFI_ACPI_6_5_PCIE_ASPM_CONTROLS    BIT4
+#define EFI_ACPI_6_5_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_5_ARM_PSCI_COMPLIANT  BIT0
+#define EFI_ACPI_6_5_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_5_WBINVD                                BIT0
+#define EFI_ACPI_6_5_WBINVD_FLUSH                          BIT1
+#define EFI_ACPI_6_5_PROC_C1                               BIT2
+#define EFI_ACPI_6_5_P_LVL2_UP                             BIT3
+#define EFI_ACPI_6_5_PWR_BUTTON                            BIT4
+#define EFI_ACPI_6_5_SLP_BUTTON                            BIT5
+#define EFI_ACPI_6_5_FIX_RTC                               BIT6
+#define EFI_ACPI_6_5_RTC_S4                                BIT7
+#define EFI_ACPI_6_5_TMR_VAL_EXT                           BIT8
+#define EFI_ACPI_6_5_DCK_CAP                               BIT9
+#define EFI_ACPI_6_5_RESET_REG_SUP                         BIT10
+#define EFI_ACPI_6_5_SEALED_CASE                           BIT11
+#define EFI_ACPI_6_5_HEADLESS                              BIT12
+#define EFI_ACPI_6_5_CPU_SW_SLP                            BIT13
+#define EFI_ACPI_6_5_PCI_EXP_WAK                           BIT14
+#define EFI_ACPI_6_5_USE_PLATFORM_CLOCK                    BIT15
+#define EFI_ACPI_6_5_S4_RTC_STS_VALID                      BIT16
+#define EFI_ACPI_6_5_REMOTE_POWER_ON_CAPABLE               BIT17
+#define EFI_ACPI_6_5_FORCE_APIC_CLUSTER_MODEL              BIT18
+#define EFI_ACPI_6_5_FORCE_APIC_PHYSICAL_DESTINATION_MODE  BIT19
+#define EFI_ACPI_6_5_HW_REDUCED_ACPI                       BIT20
+#define EFI_ACPI_6_5_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_5_FIRMWARE_ACPI_CONTROL_STRUCTURE;
+
+///
+/// FACS Version (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_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_5_S4BIOS_F                BIT0
+#define EFI_ACPI_6_5_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_5_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_5_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_REVISION  0x02
+#define EFI_ACPI_6_5_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_5_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER;
+
+///
+/// MADT Revision (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_MULTIPLE_APIC_DESCRIPTION_TABLE_REVISION  0x05
+
+///
+/// Multiple APIC Flags
+/// All other bits are reserved and must be set to 0.
+///
+#define EFI_ACPI_6_5_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_5_PROCESSOR_LOCAL_APIC           0x00
+#define EFI_ACPI_6_5_IO_APIC                        0x01
+#define EFI_ACPI_6_5_INTERRUPT_SOURCE_OVERRIDE      0x02
+#define EFI_ACPI_6_5_NON_MASKABLE_INTERRUPT_SOURCE  0x03
+#define EFI_ACPI_6_5_LOCAL_APIC_NMI                 0x04
+#define EFI_ACPI_6_5_LOCAL_APIC_ADDRESS_OVERRIDE    0x05
+#define EFI_ACPI_6_5_IO_SAPIC                       0x06
+#define EFI_ACPI_6_5_LOCAL_SAPIC                    0x07
+#define EFI_ACPI_6_5_PLATFORM_INTERRUPT_SOURCES     0x08
+#define EFI_ACPI_6_5_PROCESSOR_LOCAL_X2APIC         0x09
+#define EFI_ACPI_6_5_LOCAL_X2APIC_NMI               0x0A
+#define EFI_ACPI_6_5_GIC                            0x0B
+#define EFI_ACPI_6_5_GICD                           0x0C
+#define EFI_ACPI_6_5_GIC_MSI_FRAME                  0x0D
+#define EFI_ACPI_6_5_GICR                           0x0E
+#define EFI_ACPI_6_5_GIC_ITS                        0x0F
+#define EFI_ACPI_6_5_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_5_PROCESSOR_LOCAL_APIC_STRUCTURE;
+
+///
+/// Local APIC Flags.  All other bits are reserved and must be 0.
+///
+#define EFI_ACPI_6_5_LOCAL_APIC_ENABLED         BIT0
+#define EFI_ACPI_6_5_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_5_IO_APIC_STRUCTURE;
+
+///
+/// Interrupt Source Override Structure
+///
+typedef struct {
+  UINT8     Type;
+  UINT8     Length;
+  UINT8     Bus;
+  UINT8     Source;
+  UINT32    GlobalSystemInterrupt;
+  UINT16    Flags;
+} EFI_ACPI_6_5_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_5_PLATFORM_INTERRUPT_APIC_STRUCTURE;
+
+//
+// MPS INTI flags.
+// All other bits are reserved and must be set to 0.
+//
+#define EFI_ACPI_6_5_POLARITY      (3 << 0)
+#define EFI_ACPI_6_5_TRIGGER_MODE  (3 << 2)
+
+///
+/// Non-Maskable Interrupt Source Structure
+///
+typedef struct {
+  UINT8     Type;
+  UINT8     Length;
+  UINT16    Flags;
+  UINT32    GlobalSystemInterrupt;
+} EFI_ACPI_6_5_NON_MASKABLE_INTERRUPT_SOURCE_STRUCTURE;
+
+///
+/// Local APIC NMI Structure
+///
+typedef struct {
+  UINT8     Type;
+  UINT8     Length;
+  UINT8     AcpiProcessorUid;
+  UINT16    Flags;
+  UINT8     LocalApicLint;
+} EFI_ACPI_6_5_LOCAL_APIC_NMI_STRUCTURE;
+
+///
+/// Local APIC Address Override Structure
+///
+typedef struct {
+  UINT8     Type;
+  UINT8     Length;
+  UINT16    Reserved;
+  UINT64    LocalApicAddress;
+} EFI_ACPI_6_5_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_5_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_5_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_5_PLATFORM_INTERRUPT_SOURCES_STRUCTURE;
+
+///
+/// Platform Interrupt Source Flags.
+/// All other bits are reserved and must be set to 0.
+///
+#define EFI_ACPI_6_5_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_5_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_5_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_5_GIC_STRUCTURE;
+
+///
+/// GIC Flags.  All other bits are reserved and must be 0.
+///
+#define EFI_ACPI_6_5_GIC_ENABLED                            BIT0
+#define EFI_ACPI_6_5_PERFORMANCE_INTERRUPT_MODEL            BIT1
+#define EFI_ACPI_6_5_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_5_GIC_DISTRIBUTOR_STRUCTURE;
+
+///
+/// GIC Version
+///
+#define EFI_ACPI_6_5_GIC_V1  0x01
+#define EFI_ACPI_6_5_GIC_V2  0x02
+#define EFI_ACPI_6_5_GIC_V3  0x03
+#define EFI_ACPI_6_5_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_5_GIC_MSI_FRAME_STRUCTURE;
+
+///
+/// GIC MSI Frame Flags.  All other bits are reserved and must be 0.
+///
+#define EFI_ACPI_6_5_SPI_COUNT_BASE_SELECT  BIT0
+
+///
+/// GICR Structure
+///
+typedef struct {
+  UINT8     Type;
+  UINT8     Length;
+  UINT16    Reserved;
+  UINT64    DiscoveryRangeBaseAddress;
+  UINT32    DiscoveryRangeLength;
+} EFI_ACPI_6_5_GICR_STRUCTURE;
+
+///
+/// GIC Interrupt Translation Service Structure
+///
+typedef struct {
+  UINT8     Type;
+  UINT8     Length;
+  UINT16    Reserved;
+  UINT32    GicItsId;
+  UINT64    PhysicalBaseAddress;
+  UINT32    Reserved2;
+} EFI_ACPI_6_5_GIC_ITS_STRUCTURE;
+
+///
+/// Multiprocessor Wakeup Structure
+///
+typedef struct {
+  UINT8     Type;
+  UINT8     Length;
+  UINT16    MailBoxVersion;
+  UINT32    Reserved;
+  UINT64    MailBoxAddress;
+} EFI_ACPI_6_5_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_5_MULTIPROCESSOR_WAKEUP_MAILBOX_STRUCTURE;
+
+#define EFI_ACPI_6_5_MULTIPROCESSOR_WAKEUP_MAILBOX_COMMAND_NOOP    0x0000
+#define EFI_ACPI_6_5_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_5_SMART_BATTERY_DESCRIPTION_TABLE;
+
+///
+/// SBST Version (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_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_5_GENERIC_ADDRESS_STRUCTURE    EcControl;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    EcData;
+  UINT32                                    Uid;
+  UINT8                                     GpeBit;
+} EFI_ACPI_6_5_EMBEDDED_CONTROLLER_BOOT_RESOURCES_TABLE;
+
+///
+/// ECDT Version (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_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_5_SYSTEM_RESOURCE_AFFINITY_TABLE_HEADER;
+
+///
+/// SRAT Version (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_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_5_PROCESSOR_LOCAL_APIC_SAPIC_AFFINITY  0x00
+#define EFI_ACPI_6_5_MEMORY_AFFINITY                      0x01
+#define EFI_ACPI_6_5_PROCESSOR_LOCAL_X2APIC_AFFINITY      0x02
+#define EFI_ACPI_6_5_GICC_AFFINITY                        0x03
+#define EFI_ACPI_6_5_GIC_ITS_AFFINITY                     0x04
+#define EFI_ACPI_6_5_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_5_PROCESSOR_LOCAL_APIC_SAPIC_AFFINITY_STRUCTURE;
+
+///
+/// Local APIC/SAPIC Flags.  All other bits are reserved and must be 0.
+///
+#define EFI_ACPI_6_5_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_5_MEMORY_AFFINITY_STRUCTURE;
+
+//
+// Memory Flags.  All other bits are reserved and must be 0.
+//
+#define EFI_ACPI_6_5_MEMORY_ENABLED        (1 << 0)
+#define EFI_ACPI_6_5_MEMORY_HOT_PLUGGABLE  (1 << 1)
+#define EFI_ACPI_6_5_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_5_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_5_GICC_AFFINITY_STRUCTURE;
+
+///
+/// GICC Flags.  All other bits are reserved and must be 0.
+///
+#define EFI_ACPI_6_5_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_5_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_5_ACPI_DEVICE_HANDLE  0x00
+#define EFI_ACPI_6_5_PCI_DEVICE_HANDLE   0x01
+
+///
+/// Device Handle - ACPI
+///
+typedef struct {
+  UINT64    AcpiHid;
+  UINT32    AcpiUid;
+  UINT8     Reserved[4];
+} EFI_ACPI_6_5_DEVICE_HANDLE_ACPI;
+
+///
+/// Device Handle - PCI
+///
+typedef struct {
+  UINT16    PciSegment;
+  UINT16    PciBdfNumber;
+  UINT8     Reserved[12];
+} EFI_ACPI_6_5_DEVICE_HANDLE_PCI;
+
+///
+/// Device Handle
+///
+typedef union {
+  EFI_ACPI_6_5_DEVICE_HANDLE_ACPI    Acpi;
+  EFI_ACPI_6_5_DEVICE_HANDLE_PCI     Pci;
+} EFI_ACPI_6_5_DEVICE_HANDLE;
+
+///
+/// Generic Initiator Affinity Structure
+///
+typedef struct {
+  UINT8                         Type;
+  UINT8                         Length;
+  UINT8                         Reserved1;
+  UINT8                         DeviceHandleType;
+  UINT32                        ProximityDomain;
+  EFI_ACPI_6_5_DEVICE_HANDLE    DeviceHandle;
+  UINT32                        Flags;
+  UINT8                         Reserved2[4];
+} EFI_ACPI_6_5_GENERIC_INITIATOR_AFFINITY_STRUCTURE;
+
+///
+/// Generic Initiator Affinity Structure Flags. All other bits are reserved
+/// and must be 0.
+///
+#define EFI_ACPI_6_5_GENERIC_INITIATOR_AFFINITY_STRUCTURE_ENABLED                     BIT0
+#define EFI_ACPI_6_5_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_5_SYSTEM_LOCALITY_DISTANCE_INFORMATION_TABLE_HEADER;
+
+///
+/// SLIT Version (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_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_5_CORRECTED_PLATFORM_ERROR_POLLING_TABLE_HEADER;
+
+///
+/// CPEP Version (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_CORRECTED_PLATFORM_ERROR_POLLING_TABLE_REVISION  0x01
+
+//
+// CPEP processor structure types.
+//
+#define EFI_ACPI_6_5_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_5_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_5_MAXIMUM_SYSTEM_CHARACTERISTICS_TABLE_HEADER;
+
+///
+/// MSCT Version (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_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_5_MAXIMUM_PROXIMITY_DOMAIN_INFORMATION_STRUCTURE;
+
+///
+/// ACPI RAS Feature Table definition.
+///
+typedef struct {
+  EFI_ACPI_DESCRIPTION_HEADER    Header;
+  UINT8                          PlatformCommunicationChannelIdentifier[12];
+} EFI_ACPI_6_5_RAS_FEATURE_TABLE;
+
+///
+/// RASF Version (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_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_5_RASF_PLATFORM_COMMUNICATION_CHANNEL_SHARED_MEMORY_REGION;
+
+///
+/// ACPI RASF PCC command code
+///
+#define EFI_ACPI_6_5_RASF_PCC_COMMAND_CODE_EXECUTE_RASF_COMMAND  0x01
+
+///
+/// ACPI RASF Platform RAS Capabilities
+///
+#define EFI_ACPI_6_5_RASF_PLATFORM_RAS_CAPABILITY_HARDWARE_BASED_PATROL_SCRUB_SUPPORTED                          BIT0
+#define EFI_ACPI_6_5_RASF_PLATFORM_RAS_CAPABILITY_HARDWARE_BASED_PATROL_SCRUB_SUPPORTED_AND_EXPOSED_TO_SOFTWARE  BIT1
+#define EFI_ACPI_6_5_RASF_PLATFORM_RAS_CAPABILITY_CPU_CACHE_FLUSH_TO_NVDIMM_DURABILITY_ON_POWER_LOSS             BIT2
+#define EFI_ACPI_6_5_RASF_PLATFORM_RAS_CAPABILITY_MEMORY_CONTROLLER_FLUSH_TO_NVDIMM_DURABILITY_ON_POWER_LOSS     BIT3
+#define EFI_ACPI_6_5_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_5_RASF_PATROL_SCRUB_PLATFORM_BLOCK_STRUCTURE;
+
+///
+/// ACPI RASF Patrol Scrub command
+///
+#define EFI_ACPI_6_5_RASF_PATROL_SCRUB_COMMAND_GET_PATROL_PARAMETERS  0x01
+#define EFI_ACPI_6_5_RASF_PATROL_SCRUB_COMMAND_START_PATROL_SCRUBBER  0x02
+#define EFI_ACPI_6_5_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_5_MEMORY_POWER_STATUS_TABLE;
+
+///
+/// MPST Version (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_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_5_MPST_PLATFORM_COMMUNICATION_CHANNEL_SHARED_MEMORY_REGION;
+
+///
+/// ACPI MPST PCC command code
+///
+#define EFI_ACPI_6_5_MPST_PCC_COMMAND_CODE_EXECUTE_MPST_COMMAND  0x03
+
+///
+/// ACPI MPST Memory Power command
+///
+#define EFI_ACPI_6_5_MPST_MEMORY_POWER_COMMAND_GET_MEMORY_POWER_STATE      0x01
+#define EFI_ACPI_6_5_MPST_MEMORY_POWER_COMMAND_SET_MEMORY_POWER_STATE      0x02
+#define EFI_ACPI_6_5_MPST_MEMORY_POWER_COMMAND_GET_AVERAGE_POWER_CONSUMED  0x03
+#define EFI_ACPI_6_5_MPST_MEMORY_POWER_COMMAND_GET_MEMORY_ENERGY_CONSUMED  0x04
+
+///
+/// MPST Memory Power Node Table
+///
+typedef struct {
+  UINT8    PowerStateValue;
+  UINT8    PowerStateInformationIndex;
+} EFI_ACPI_6_5_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_5_MPST_MEMORY_POWER_STATE              MemoryPowerState[NumberOfPowerStates];
+  // UINT16                                            PhysicalComponentIdentifier[NumberOfPhysicalComponents];
+} EFI_ACPI_6_5_MPST_MEMORY_POWER_STRUCTURE;
+
+#define EFI_ACPI_6_5_MPST_MEMORY_POWER_STRUCTURE_FLAG_ENABLE         0x01
+#define EFI_ACPI_6_5_MPST_MEMORY_POWER_STRUCTURE_FLAG_POWER_MANAGED  0x02
+#define EFI_ACPI_6_5_MPST_MEMORY_POWER_STRUCTURE_FLAG_HOT_PLUGGABLE  0x04
+
+typedef struct {
+  UINT16    MemoryPowerNodeCount;
+  UINT8     Reserved[2];
+} EFI_ACPI_6_5_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_5_MPST_MEMORY_POWER_STATE_CHARACTERISTICS_STRUCTURE;
+
+#define EFI_ACPI_6_5_MPST_MEMORY_POWER_STATE_CHARACTERISTICS_STRUCTURE_FLAG_MEMORY_CONTENT_PRESERVED             0x01
+#define EFI_ACPI_6_5_MPST_MEMORY_POWER_STATE_CHARACTERISTICS_STRUCTURE_FLAG_AUTONOMOUS_MEMORY_POWER_STATE_ENTRY  0x02
+#define EFI_ACPI_6_5_MPST_MEMORY_POWER_STATE_CHARACTERISTICS_STRUCTURE_FLAG_AUTONOMOUS_MEMORY_POWER_STATE_EXIT   0x04
+
+typedef struct {
+  UINT16    MemoryPowerStateCharacteristicsCount;
+  UINT8     Reserved[2];
+} EFI_ACPI_6_5_MPST_MEMORY_POWER_STATE_CHARACTERISTICS_TABLE;
+
+///
+/// Platform Memory Topology Table definition.
+///
+typedef struct {
+  EFI_ACPI_DESCRIPTION_HEADER    Header;
+  UINT32                         NumberOfMemoryDevices;
+  // EFI_ACPI_6_5_PMTT_COMMON_MEMORY_DEVICE  MemoryDeviceStructure[NumberOfMemoryDevices];
+} EFI_ACPI_6_5_PLATFORM_MEMORY_TOPOLOGY_TABLE;
+
+///
+/// PMTT Version (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_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_5_PMTT_COMMON_MEMORY_DEVICE  MemoryDeviceStructure[NumberOfMemoryDevices];
+} EFI_ACPI_6_5_PMTT_COMMON_MEMORY_DEVICE;
+
+///
+/// Memory Device Type.
+///
+#define EFI_ACPI_6_5_PMTT_MEMORY_DEVICE_TYPE_SOCKET                0x0
+#define EFI_ACPI_6_5_PMTT_MEMORY_DEVICE_TYPE_MEMORY_CONTROLLER     0x1
+#define EFI_ACPI_6_5_PMTT_MEMORY_DEVICE_TYPE_DIMM                  0x2
+#define EFI_ACPI_6_5_PMTT_MEMORY_DEVICE_TYPE_VENDOR_SPECIFIC_TYPE  0xFF
+
+///
+/// Socket Type Data.
+///
+typedef struct {
+  EFI_ACPI_6_5_PMTT_COMMON_MEMORY_DEVICE    CommonMemoryDeviceHeader;
+  UINT16                                    SocketIdentifier;
+  UINT16                                    Reserved;
+  // EFI_ACPI_6_5_PMTT_COMMON_MEMORY_DEVICE  MemoryDeviceStructure[];
+} EFI_ACPI_6_5_PMTT_SOCKET_TYPE_DATA;
+
+///
+/// Memory Controller Type Data.
+///
+typedef struct {
+  EFI_ACPI_6_5_PMTT_COMMON_MEMORY_DEVICE    CommonMemoryDeviceHeader;
+  UINT16                                    MemoryControllerIdentifier;
+  UINT16                                    Reserved;
+  // EFI_ACPI_6_5_PMTT_COMMON_MEMORY_DEVICE  MemoryDeviceStructure[];
+} EFI_ACPI_6_5_PMTT_MEMORY_CONTROLLER_TYPE_DATA;
+
+///
+/// DIMM Type Specific Data.
+///
+typedef struct {
+  EFI_ACPI_6_5_PMTT_COMMON_MEMORY_DEVICE    CommonMemoryDeviceHeader;
+  UINT32                                    SmbiosHandle;
+} EFI_ACPI_6_5_PMTT_DIMM_TYPE_SPECIFIC_DATA;
+
+///
+/// Vendor Specific Type Data.
+///
+typedef struct {
+  EFI_ACPI_6_5_PMTT_COMMON_MEMORY_DEVICE    CommonMemoryDeviceHeader;
+  UINT8                                     TypeUuid[16];
+  // EFI_ACPI_6_5_PMTT_VENDOR_SPECIFIC_TYPE_DATA   VendorSpecificData[];
+  // EFI_ACPI_6_5_PMTT_COMMON_MEMORY_DEVICE        MemoryDeviceStructure[];
+} EFI_ACPI_6_5_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_5_BOOT_GRAPHICS_RESOURCE_TABLE;
+
+///
+/// BGRT Revision
+///
+#define EFI_ACPI_6_5_BOOT_GRAPHICS_RESOURCE_TABLE_REVISION  1
+
+///
+/// BGRT Version
+///
+#define EFI_ACPI_6_5_BGRT_VERSION  0x01
+
+///
+/// BGRT Status
+///
+#define EFI_ACPI_6_5_BGRT_STATUS_NOT_DISPLAYED  0x00
+#define EFI_ACPI_6_5_BGRT_STATUS_DISPLAYED      0x01
+
+///
+/// BGRT Image Type
+///
+#define EFI_ACPI_6_5_BGRT_IMAGE_TYPE_BMP  0x00
+
+///
+/// FPDT Version (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_FIRMWARE_PERFORMANCE_DATA_TABLE_REVISION  0x01
+
+///
+/// FPDT Performance Record Types
+///
+#define EFI_ACPI_6_5_FPDT_RECORD_TYPE_FIRMWARE_BASIC_BOOT_POINTER   0x0000
+#define EFI_ACPI_6_5_FPDT_RECORD_TYPE_S3_PERFORMANCE_TABLE_POINTER  0x0001
+
+///
+/// FPDT Performance Record Revision
+///
+#define EFI_ACPI_6_5_FPDT_RECORD_REVISION_FIRMWARE_BASIC_BOOT_POINTER   0x01
+#define EFI_ACPI_6_5_FPDT_RECORD_REVISION_S3_PERFORMANCE_TABLE_POINTER  0x01
+
+///
+/// FPDT Runtime Performance Record Types
+///
+#define EFI_ACPI_6_5_FPDT_RUNTIME_RECORD_TYPE_S3_RESUME            0x0000
+#define EFI_ACPI_6_5_FPDT_RUNTIME_RECORD_TYPE_S3_SUSPEND           0x0001
+#define EFI_ACPI_6_5_FPDT_RUNTIME_RECORD_TYPE_FIRMWARE_BASIC_BOOT  0x0002
+
+///
+/// FPDT Runtime Performance Record Revision
+///
+#define EFI_ACPI_6_5_FPDT_RUNTIME_RECORD_REVISION_S3_RESUME            0x01
+#define EFI_ACPI_6_5_FPDT_RUNTIME_RECORD_REVISION_S3_SUSPEND           0x01
+#define EFI_ACPI_6_5_FPDT_RUNTIME_RECORD_REVISION_FIRMWARE_BASIC_BOOT  0x02
+
+///
+/// FPDT Performance Record header
+///
+typedef struct {
+  UINT16    Type;
+  UINT8     Length;
+  UINT8     Revision;
+} EFI_ACPI_6_5_FPDT_PERFORMANCE_RECORD_HEADER;
+
+///
+/// FPDT Performance Table header
+///
+typedef struct {
+  UINT32    Signature;
+  UINT32    Length;
+} EFI_ACPI_6_5_FPDT_PERFORMANCE_TABLE_HEADER;
+
+///
+/// FPDT Firmware Basic Boot Performance Pointer Record Structure
+///
+typedef struct {
+  EFI_ACPI_6_5_FPDT_PERFORMANCE_RECORD_HEADER    Header;
+  UINT32                                         Reserved;
+  ///
+  /// 64-bit processor-relative physical address of the Basic Boot Performance Table.
+  ///
+  UINT64                                         BootPerformanceTablePointer;
+} EFI_ACPI_6_5_FPDT_BOOT_PERFORMANCE_TABLE_POINTER_RECORD;
+
+///
+/// FPDT S3 Performance Table Pointer Record Structure
+///
+typedef struct {
+  EFI_ACPI_6_5_FPDT_PERFORMANCE_RECORD_HEADER    Header;
+  UINT32                                         Reserved;
+  ///
+  /// 64-bit processor-relative physical address of the S3 Performance Table.
+  ///
+  UINT64                                         S3PerformanceTablePointer;
+} EFI_ACPI_6_5_FPDT_S3_PERFORMANCE_TABLE_POINTER_RECORD;
+
+///
+/// FPDT Firmware Basic Boot Performance Record Structure
+///
+typedef struct {
+  EFI_ACPI_6_5_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_5_FPDT_FIRMWARE_BASIC_BOOT_RECORD;
+
+///
+/// FPDT Firmware Basic Boot Performance Table signature
+///
+#define EFI_ACPI_6_5_FPDT_BOOT_PERFORMANCE_TABLE_SIGNATURE  SIGNATURE_32('F', 'B', 'P', 'T')
+
+//
+// FPDT Firmware Basic Boot Performance Table
+//
+typedef struct {
+  EFI_ACPI_6_5_FPDT_PERFORMANCE_TABLE_HEADER    Header;
+  //
+  // one or more Performance Records.
+  //
+} EFI_ACPI_6_5_FPDT_FIRMWARE_BASIC_BOOT_TABLE;
+
+///
+/// FPDT "S3PT" S3 Performance Table
+///
+#define EFI_ACPI_6_5_FPDT_S3_PERFORMANCE_TABLE_SIGNATURE  SIGNATURE_32('S', '3', 'P', 'T')
+
+//
+// FPDT Firmware S3 Boot Performance Table
+//
+typedef struct {
+  EFI_ACPI_6_5_FPDT_PERFORMANCE_TABLE_HEADER    Header;
+  //
+  // one or more Performance Records.
+  //
+} EFI_ACPI_6_5_FPDT_FIRMWARE_S3_BOOT_TABLE;
+
+///
+/// FPDT Basic S3 Resume Performance Record
+///
+typedef struct {
+  EFI_ACPI_6_5_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_5_FPDT_S3_RESUME_RECORD;
+
+///
+/// FPDT Basic S3 Suspend Performance Record
+///
+typedef struct {
+  EFI_ACPI_6_5_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_5_FPDT_S3_SUSPEND_RECORD;
+
+///
+/// Firmware Performance Record Table definition.
+///
+typedef struct {
+  EFI_ACPI_DESCRIPTION_HEADER    Header;
+} EFI_ACPI_6_5_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_5_GENERIC_TIMER_DESCRIPTION_TABLE;
+
+///
+/// GTDT Version (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_GENERIC_TIMER_DESCRIPTION_TABLE_REVISION  0x03
+
+///
+/// Timer Flags.  All other bits are reserved and must be 0.
+///
+#define EFI_ACPI_6_5_GTDT_TIMER_FLAG_TIMER_INTERRUPT_MODE      BIT0
+#define EFI_ACPI_6_5_GTDT_TIMER_FLAG_TIMER_INTERRUPT_POLARITY  BIT1
+#define EFI_ACPI_6_5_GTDT_TIMER_FLAG_ALWAYS_ON_CAPABILITY      BIT2
+
+///
+/// Platform Timer Type
+///
+#define EFI_ACPI_6_5_GTDT_GT_BLOCK              0
+#define EFI_ACPI_6_5_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_5_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_5_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_5_GTDT_GT_BLOCK_TIMER_FLAG_TIMER_INTERRUPT_MODE      BIT0
+#define EFI_ACPI_6_5_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_5_GTDT_GT_BLOCK_COMMON_FLAG_SECURE_TIMER          BIT0
+#define EFI_ACPI_6_5_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_5_GTDT_ARM_GENERIC_WATCHDOG_STRUCTURE;
+
+///
+/// Arm Generic Watchdog Timer Flags.  All other bits are reserved and must be 0.
+///
+#define EFI_ACPI_6_5_GTDT_ARM_GENERIC_WATCHDOG_FLAG_TIMER_INTERRUPT_MODE      BIT0
+#define EFI_ACPI_6_5_GTDT_ARM_GENERIC_WATCHDOG_FLAG_TIMER_INTERRUPT_POLARITY  BIT1
+#define EFI_ACPI_6_5_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_5_NVDIMM_FIRMWARE_INTERFACE_TABLE;
+
+//
+// NFIT Version (as defined in ACPI 6.5 spec.)
+//
+#define EFI_ACPI_6_5_NVDIMM_FIRMWARE_INTERFACE_TABLE_REVISION  0x1
+
+//
+// Definition for NFIT Table Structure Types
+//
+#define EFI_ACPI_6_5_NFIT_SYSTEM_PHYSICAL_ADDRESS_RANGE_STRUCTURE_TYPE    0
+#define EFI_ACPI_6_5_NFIT_NVDIMM_REGION_MAPPING_STRUCTURE_TYPE            1
+#define EFI_ACPI_6_5_NFIT_INTERLEAVE_STRUCTURE_TYPE                       2
+#define EFI_ACPI_6_5_NFIT_SMBIOS_MANAGEMENT_INFORMATION_STRUCTURE_TYPE    3
+#define EFI_ACPI_6_5_NFIT_NVDIMM_CONTROL_REGION_STRUCTURE_TYPE            4
+#define EFI_ACPI_6_5_NFIT_NVDIMM_BLOCK_DATA_WINDOW_REGION_STRUCTURE_TYPE  5
+#define EFI_ACPI_6_5_NFIT_FLUSH_HINT_ADDRESS_STRUCTURE_TYPE               6
+#define EFI_ACPI_6_5_NFIT_PLATFORM_CAPABILITIES_STRUCTURE_TYPE            7
+
+//
+// Definition for NFIT Structure Header
+//
+typedef struct {
+  UINT16    Type;
+  UINT16    Length;
+} EFI_ACPI_6_5_NFIT_STRUCTURE_HEADER;
+
+//
+// Definition for System Physical Address Range Structure
+//
+#define EFI_ACPI_6_5_NFIT_SYSTEM_PHYSICAL_ADDRESS_RANGE_FLAGS_CONTROL_REGION_FOR_MANAGEMENT  BIT0
+#define EFI_ACPI_6_5_NFIT_SYSTEM_PHYSICAL_ADDRESS_RANGE_FLAGS_PROXIMITY_DOMAIN_VALID         BIT1
+#define EFI_ACPI_6_5_NFIT_SYSTEM_PHYSICAL_ADDRESS_RANGE_FLAGS_SPA_LOCATION_COOKIE_VALID      BIT2
+
+#define EFI_ACPI_6_5_NFIT_GUID_VOLATILE_MEMORY_REGION                              { 0x7305944F, 0xFDDA, 0x44E3, { 0xB1, 0x6C, 0x3F, 0x22, 0xD2, 0x52, 0xE5, 0xD0 }}
+#define EFI_ACPI_6_5_NFIT_GUID_BYTE_ADDRESSABLE_PERSISTENT_MEMORY_REGION           { 0x66F0D379, 0xB4F3, 0x4074, { 0xAC, 0x43, 0x0D, 0x33, 0x18, 0xB7, 0x8C, 0xDB }}
+#define EFI_ACPI_6_5_NFIT_GUID_NVDIMM_CONTROL_REGION                               { 0x92F701F6, 0x13B4, 0x405D, { 0x91, 0x0B, 0x29, 0x93, 0x67, 0xE8, 0x23, 0x4C }}
+#define EFI_ACPI_6_5_NFIT_GUID_NVDIMM_BLOCK_DATA_WINDOW_REGION                     { 0x91AF0530, 0x5D86, 0x470E, { 0xA6, 0xB0, 0x0A, 0x2D, 0xB9, 0x40, 0x82, 0x49 }}
+#define EFI_ACPI_6_5_NFIT_GUID_RAM_DISK_SUPPORTING_VIRTUAL_DISK_REGION_VOLATILE    { 0x77AB535A, 0x45FC, 0x6.5B, { 0x55, 0x60, 0xF7, 0xB2, 0x81, 0xD1, 0xF9, 0x6E }}
+#define EFI_ACPI_6_5_NFIT_GUID_RAM_DISK_SUPPORTING_VIRTUAL_CD_REGION_VOLATILE      { 0x3D5ABD30, 0x4175, 0x87CE, { 0x6D, 0x64, 0xD2, 0xAD, 0xE5, 0x23, 0xC4, 0xBB }}
+#define EFI_ACPI_6_5_NFIT_GUID_RAM_DISK_SUPPORTING_VIRTUAL_DISK_REGION_PERSISTENT  { 0x5CEA02C9, 0x4D07, 0x69D3, { 0x26, 0x9F ,0x44, 0x96, 0xFB, 0xE0, 0x96, 0xF9 }}
+#define EFI_ACPI_6_5_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_5_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_5_NFIT_DEVICE_HANDLE;
+
+#define EFI_ACPI_6_5_NFIT_MEMORY_DEVICE_STATE_FLAGS_PREVIOUS_SAVE_FAIL                                      BIT0
+#define EFI_ACPI_6_5_NFIT_MEMORY_DEVICE_STATE_FLAGS_LAST_RESTORE_FAIL                                       BIT1
+#define EFI_ACPI_6_5_NFIT_MEMORY_DEVICE_STATE_FLAGS_PLATFORM_FLUSH_FAIL                                     BIT2
+#define EFI_ACPI_6_5_NFIT_MEMORY_DEVICE_STATE_FLAGS_NOT_ARMED_PRIOR_TO_OSPM_HAND_OFF                        BIT3
+#define EFI_ACPI_6_5_NFIT_MEMORY_DEVICE_STATE_FLAGS_SMART_HEALTH_EVENTS_PRIOR_OSPM_HAND_OFF                 BIT4
+#define EFI_ACPI_6_5_NFIT_MEMORY_DEVICE_STATE_FLAGS_FIRMWARE_ENABLED_TO_NOTIFY_OSPM_ON_SMART_HEALTH_EVENTS  BIT5
+#define EFI_ACPI_6_5_NFIT_MEMORY_DEVICE_STATE_FLAGS_FIRMWARE_NOT_MAP_NVDIMM_TO_SPA                          BIT6
+
+typedef struct {
+  UINT16                             Type;
+  UINT16                             Length;
+  EFI_ACPI_6_5_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_5_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_5_NFIT_INTERLEAVE_STRUCTURE;
+
+//
+// Definition for SMBIOS Management Information Structure
+//
+typedef struct {
+  UINT16    Type;
+  UINT16    Length;
+  UINT32    Reserved_4;
+  // UINT8                                       Data[];
+} EFI_ACPI_6_5_NFIT_SMBIOS_MANAGEMENT_INFORMATION_STRUCTURE;
+
+//
+// Definition for NVDIMM Control Region Structure
+//
+#define EFI_ACPI_6_5_NFIT_NVDIMM_CONTROL_REGION_VALID_FIELDS_MANUFACTURING  BIT0
+
+#define EFI_ACPI_6_5_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_5_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_5_NFIT_NVDIMM_BLOCK_DATA_WINDOW_REGION_STRUCTURE;
+
+//
+// Definition for Flush Hint Address Structure
+//
+typedef struct {
+  UINT16                             Type;
+  UINT16                             Length;
+  EFI_ACPI_6_5_NFIT_DEVICE_HANDLE    NFITDeviceHandle;
+  UINT16                             NumberOfFlushHintAddresses;
+  UINT8                              Reserved_10[6];
+  // UINT64                                      FlushHintAddress[NumberOfFlushHintAddresses];
+} EFI_ACPI_6_5_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_5_NFIT_PLATFORM_CAPABILITIES_STRUCTURE;
+
+#define EFI_ACPI_6_5_NFIT_PLATFORM_CAPABILITY_CPU_CACHE_FLUSH_TO_NVDIMM_DURABILITY_ON_POWER_LOSS          BIT0
+#define EFI_ACPI_6_5_NFIT_PLATFORM_CAPABILITY_MEMORY_CONTROLLER_FLUSH_TO_NVDIMM_DURABILITY_ON_POWER_LOSS  BIT1
+#define EFI_ACPI_6_5_NFIT_PLATFORM_CAPABILITY_BYTE_ADDRESSABLE_PERSISTENT_MEMORY_HARDWARE_MIRRORING       BIT2
+
+///
+/// Secure DEVices Table (SDEV)
+///
+typedef struct {
+  EFI_ACPI_DESCRIPTION_HEADER    Header;
+} EFI_ACPI_6_5_SECURE_DEVICES_TABLE_HEADER;
+
+///
+/// SDEV Revision (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_SECURE_DEVICES_TABLE_REVISION  0x01
+
+///
+/// Secure Device types
+///
+#define EFI_ACPI_6_5_SDEV_TYPE_ACPI_NAMESPACE_DEVICE  0x00
+#define EFI_ACPI_6_5_SDEV_TYPE_PCIE_ENDPOINT_DEVICE   0x01
+
+///
+/// Secure Device flags
+///
+#define EFI_ACPI_6_5_SDEV_FLAG_ALLOW_HANDOFF                     BIT0
+#define EFI_ACPI_6_5_SDEV_FLAG_SECURE_ACCESS_COMPONENTS_PRESENT  BIT1
+
+///
+/// SDEV Structure Header
+///
+typedef struct {
+  UINT8     Type;
+  UINT8     Flags;
+  UINT16    Length;
+} EFI_ACPI_6_5_SDEV_STRUCTURE_HEADER;
+
+///
+/// ACPI_NAMESPACE_DEVICE based Secure Device Structure
+///
+typedef struct {
+  EFI_ACPI_6_5_SDEV_STRUCTURE_HEADER    Header;
+  UINT16                                DeviceIdentifierOffset;
+  UINT16                                DeviceIdentifierLength;
+  UINT16                                VendorSpecificDataOffset;
+  UINT16                                VendorSpecificDataLength;
+  UINT16                                SecureAccessComponentsOffset;
+  UINT16                                SecureAccessComponentsLength;
+} EFI_ACPI_6_5_SDEV_STRUCTURE_ACPI_NAMESPACE_DEVICE;
+
+///
+/// Secure Access Component Types
+///
+#define EFI_ACPI_6_5_SDEV_SECURE_ACCESS_COMPONENT_TYPE_IDENTIFICATION  0x00
+#define EFI_ACPI_6_5_SDEV_SECURE_ACCESS_COMPONENT_TYPE_MEMORY          0x01
+
+///
+/// Identification Based Secure Access Component
+///
+typedef struct {
+  EFI_ACPI_6_5_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_5_SDEV_SECURE_ACCESS_COMPONENT_IDENTIFICATION_STRUCTURE;
+
+///
+/// Memory-based Secure Access Component
+///
+typedef struct {
+  EFI_ACPI_6_5_SDEV_STRUCTURE_HEADER    Header;
+  UINT32                                Reserved;
+  UINT64                                MemoryAddressBase;
+  UINT64                                MemoryLength;
+} EFI_ACPI_6_5_SDEV_SECURE_ACCESS_COMPONENT_MEMORY_STRUCTURE;
+
+///
+/// PCIe Endpoint Device based Secure Device Structure
+///
+typedef struct {
+  EFI_ACPI_6_5_SDEV_STRUCTURE_HEADER    Header;
+  UINT16                                PciSegmentNumber;
+  UINT16                                StartBusNumber;
+  UINT16                                PciPathOffset;
+  UINT16                                PciPathLength;
+  UINT16                                VendorSpecificDataOffset;
+  UINT16                                VendorSpecificDataLength;
+} EFI_ACPI_6_5_SDEV_STRUCTURE_PCIE_ENDPOINT_DEVICE;
+
+///
+/// Boot Error Record Table (BERT)
+///
+typedef struct {
+  EFI_ACPI_DESCRIPTION_HEADER    Header;
+  UINT32                         BootErrorRegionLength;
+  UINT64                         BootErrorRegion;
+} EFI_ACPI_6_5_BOOT_ERROR_RECORD_TABLE_HEADER;
+
+///
+/// BERT Version (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_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_5_ERROR_BLOCK_STATUS;
+
+///
+/// Boot Error Region Definition
+///
+typedef struct {
+  EFI_ACPI_6_5_ERROR_BLOCK_STATUS    BlockStatus;
+  UINT32                             RawDataOffset;
+  UINT32                             RawDataLength;
+  UINT32                             DataLength;
+  UINT32                             ErrorSeverity;
+} EFI_ACPI_6_5_BOOT_ERROR_REGION_STRUCTURE;
+
+//
+// Boot Error Severity types
+//
+#define EFI_ACPI_6_5_ERROR_SEVERITY_RECOVERABLE  0x00
+#define EFI_ACPI_6_5_ERROR_SEVERITY_FATAL        0x01
+#define EFI_ACPI_6_5_ERROR_SEVERITY_CORRECTED    0x02
+#define EFI_ACPI_6_5_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_5_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_5_GENERIC_ERROR_DATA_ENTRY_STRUCTURE;
+
+///
+/// Generic Error Data Entry Version (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_GENERIC_ERROR_DATA_ENTRY_REVISION  0x0300
+
+///
+/// HEST - Hardware Error Source Table
+///
+typedef struct {
+  EFI_ACPI_DESCRIPTION_HEADER    Header;
+  UINT32                         ErrorSourceCount;
+} EFI_ACPI_6_5_HARDWARE_ERROR_SOURCE_TABLE_HEADER;
+
+///
+/// HEST Version (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_HARDWARE_ERROR_SOURCE_TABLE_REVISION  0x01
+
+//
+// Error Source structure types.
+//
+#define EFI_ACPI_6_5_IA32_ARCHITECTURE_MACHINE_CHECK_EXCEPTION  0x00
+#define EFI_ACPI_6_5_IA32_ARCHITECTURE_CORRECTED_MACHINE_CHECK  0x01
+#define EFI_ACPI_6_5_IA32_ARCHITECTURE_NMI_ERROR                0x02
+#define EFI_ACPI_6_5_PCI_EXPRESS_ROOT_PORT_AER                  0x06
+#define EFI_ACPI_6_5_PCI_EXPRESS_DEVICE_AER                     0x07
+#define EFI_ACPI_6_5_PCI_EXPRESS_BRIDGE_AER                     0x08
+#define EFI_ACPI_6_5_GENERIC_HARDWARE_ERROR                     0x09
+#define EFI_ACPI_6_5_GENERIC_HARDWARE_ERROR_VERSION_2           0x0A
+#define EFI_ACPI_6_5_IA32_ARCHITECTURE_DEFERRED_MACHINE_CHECK   0x0B
+
+//
+// Error Source structure flags.
+//
+#define EFI_ACPI_6_5_ERROR_SOURCE_FLAG_FIRMWARE_FIRST  (1 << 0)
+#define EFI_ACPI_6_5_ERROR_SOURCE_FLAG_GLOBAL          (1 << 1)
+#define EFI_ACPI_6_5_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_5_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_5_IA32_ARCHITECTURE_MACHINE_CHECK_ERROR_BANK_STRUCTURE;
+
+///
+/// IA-32 Architecture Machine Check Bank Structure MCA data format
+///
+#define EFI_ACPI_6_5_IA32_ARCHITECTURE_MACHINE_CHECK_ERROR_DATA_FORMAT_IA32     0x00
+#define EFI_ACPI_6_5_IA32_ARCHITECTURE_MACHINE_CHECK_ERROR_DATA_FORMAT_INTEL64  0x01
+#define EFI_ACPI_6_5_IA32_ARCHITECTURE_MACHINE_CHECK_ERROR_DATA_FORMAT_AMD64    0x02
+
+//
+// Hardware Error Notification types. All other values are reserved
+//
+#define EFI_ACPI_6_5_HARDWARE_ERROR_NOTIFICATION_POLLED                        0x00
+#define EFI_ACPI_6_5_HARDWARE_ERROR_NOTIFICATION_EXTERNAL_INTERRUPT            0x01
+#define EFI_ACPI_6_5_HARDWARE_ERROR_NOTIFICATION_LOCAL_INTERRUPT               0x02
+#define EFI_ACPI_6_5_HARDWARE_ERROR_NOTIFICATION_SCI                           0x03
+#define EFI_ACPI_6_5_HARDWARE_ERROR_NOTIFICATION_NMI                           0x04
+#define EFI_ACPI_6_5_HARDWARE_ERROR_NOTIFICATION_CMCI                          0x05
+#define EFI_ACPI_6_5_HARDWARE_ERROR_NOTIFICATION_MCE                           0x06
+#define EFI_ACPI_6_5_HARDWARE_ERROR_NOTIFICATION_GPIO_SIGNAL                   0x07
+#define EFI_ACPI_6_5_HARDWARE_ERROR_NOTIFICATION_ARMV8_SEA                     0x08
+#define EFI_ACPI_6_5_HARDWARE_ERROR_NOTIFICATION_ARMV8_SEI                     0x09
+#define EFI_ACPI_6_5_HARDWARE_ERROR_NOTIFICATION_GSIV                          0x0A
+#define EFI_ACPI_6_5_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_5_HARDWARE_ERROR_NOTIFICATION_CONFIGURATION_WRITE_ENABLE_STRUCTURE;
+
+///
+/// Hardware Error Notification Structure Definition
+///
+typedef struct {
+  UINT8                                                                            Type;
+  UINT8                                                                            Length;
+  EFI_ACPI_6_5_HARDWARE_ERROR_NOTIFICATION_CONFIGURATION_WRITE_ENABLE_STRUCTURE    ConfigurationWriteEnable;
+  UINT32                                                                           PollInterval;
+  UINT32                                                                           Vector;
+  UINT32                                                                           SwitchToPollingThresholdValue;
+  UINT32                                                                           SwitchToPollingThresholdWindow;
+  UINT32                                                                           ErrorThresholdValue;
+  UINT32                                                                           ErrorThresholdWindow;
+} EFI_ACPI_6_5_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_5_HARDWARE_ERROR_NOTIFICATION_STRUCTURE    NotificationStructure;
+  UINT8                                                 NumberOfHardwareBanks;
+  UINT8                                                 Reserved1[3];
+} EFI_ACPI_6_5_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_5_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_5_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_5_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_5_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_5_GENERIC_ADDRESS_STRUCTURE                ErrorStatusAddress;
+  EFI_ACPI_6_5_HARDWARE_ERROR_NOTIFICATION_STRUCTURE    NotificationStructure;
+  UINT32                                                ErrorStatusBlockLength;
+} EFI_ACPI_6_5_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_5_GENERIC_ADDRESS_STRUCTURE                ErrorStatusAddress;
+  EFI_ACPI_6_5_HARDWARE_ERROR_NOTIFICATION_STRUCTURE    NotificationStructure;
+  UINT32                                                ErrorStatusBlockLength;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE                ReadAckRegister;
+  UINT64                                                ReadAckPreserve;
+  UINT64                                                ReadAckWrite;
+} EFI_ACPI_6_5_GENERIC_HARDWARE_ERROR_SOURCE_VERSION_2_STRUCTURE;
+
+///
+/// Generic Error Status Definition
+///
+typedef struct {
+  EFI_ACPI_6_5_ERROR_BLOCK_STATUS    BlockStatus;
+  UINT32                             RawDataOffset;
+  UINT32                             RawDataLength;
+  UINT32                             DataLength;
+  UINT32                             ErrorSeverity;
+} EFI_ACPI_6_5_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_5_HARDWARE_ERROR_NOTIFICATION_STRUCTURE    NotificationStructure;
+  UINT8                                                 NumberOfHardwareBanks;
+  UINT8                                                 Reserved1[3];
+} EFI_ACPI_6_5_IA32_ARCHITECTURE_DEFERRED_MACHINE_CHECK_STRUCTURE;
+
+///
+/// HMAT - Heterogeneous Memory Attribute Table
+///
+typedef struct {
+  EFI_ACPI_DESCRIPTION_HEADER    Header;
+  UINT8                          Reserved[4];
+} EFI_ACPI_6_5_HETEROGENEOUS_MEMORY_ATTRIBUTE_TABLE_HEADER;
+
+///
+/// HMAT Revision (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_HETEROGENEOUS_MEMORY_ATTRIBUTE_TABLE_REVISION  0x02
+
+///
+/// HMAT types
+///
+#define EFI_ACPI_6_5_HMAT_TYPE_MEMORY_PROXIMITY_DOMAIN_ATTRIBUTES          0x00
+#define EFI_ACPI_6_5_HMAT_TYPE_SYSTEM_LOCALITY_LATENCY_AND_BANDWIDTH_INFO  0x01
+#define EFI_ACPI_6_5_HMAT_TYPE_MEMORY_SIDE_CACHE_INFO                      0x02
+
+///
+/// HMAT Structure Header
+///
+typedef struct {
+  UINT16    Type;
+  UINT8     Reserved[2];
+  UINT32    Length;
+} EFI_ACPI_6_5_HMAT_STRUCTURE_HEADER;
+
+///
+/// Memory Proximity Domain Attributes Structure flags
+///
+typedef struct {
+  UINT16    InitiatorProximityDomainValid : 1;
+  UINT16    Reserved                      : 15;
+} EFI_ACPI_6_5_HMAT_STRUCTURE_MEMORY_PROXIMITY_DOMAIN_ATTRIBUTES_FLAGS;
+
+///
+/// Memory Proximity Domain Attributes Structure
+///
+typedef struct {
+  UINT16                                                                  Type;
+  UINT8                                                                   Reserved[2];
+  UINT32                                                                  Length;
+  EFI_ACPI_6_5_HMAT_STRUCTURE_MEMORY_PROXIMITY_DOMAIN_ATTRIBUTES_FLAGS    Flags;
+  UINT8                                                                   Reserved1[2];
+  UINT32                                                                  InitiatorProximityDomain;
+  UINT32                                                                  MemoryProximityDomain;
+  UINT8                                                                   Reserved2[20];
+} EFI_ACPI_6_5_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_5_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_5_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_5_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_5_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_5_HMAT_STRUCTURE_MEMORY_SIDE_CACHE_INFO_CACHE_ATTRIBUTES    CacheAttributes;
+  UINT8                                                                  Reserved2[2];
+  UINT16                                                                 NumberOfSmbiosHandles;
+} EFI_ACPI_6_5_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_5_ERROR_RECORD_SERIALIZATION_TABLE_HEADER;
+
+///
+/// ERST Version (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_ERROR_RECORD_SERIALIZATION_TABLE_REVISION  0x01
+
+///
+/// ERST Serialization Actions
+///
+#define EFI_ACPI_6_5_ERST_BEGIN_WRITE_OPERATION                   0x00
+#define EFI_ACPI_6_5_ERST_BEGIN_READ_OPERATION                    0x01
+#define EFI_ACPI_6_5_ERST_BEGIN_CLEAR_OPERATION                   0x02
+#define EFI_ACPI_6_5_ERST_END_OPERATION                           0x03
+#define EFI_ACPI_6_5_ERST_SET_RECORD_OFFSET                       0x04
+#define EFI_ACPI_6_5_ERST_EXECUTE_OPERATION                       0x05
+#define EFI_ACPI_6_5_ERST_CHECK_BUSY_STATUS                       0x06
+#define EFI_ACPI_6_5_ERST_GET_COMMAND_STATUS                      0x07
+#define EFI_ACPI_6_5_ERST_GET_RECORD_IDENTIFIER                   0x08
+#define EFI_ACPI_6_5_ERST_SET_RECORD_IDENTIFIER                   0x09
+#define EFI_ACPI_6_5_ERST_GET_RECORD_COUNT                        0x0A
+#define EFI_ACPI_6_5_ERST_BEGIN_DUMMY_WRITE_OPERATION             0x0B
+#define EFI_ACPI_6_5_ERST_GET_ERROR_LOG_ADDRESS_RANGE             0x0D
+#define EFI_ACPI_6_5_ERST_GET_ERROR_LOG_ADDRESS_RANGE_LENGTH      0x0E
+#define EFI_ACPI_6_5_ERST_GET_ERROR_LOG_ADDRESS_RANGE_ATTRIBUTES  0x0F
+#define EFI_ACPI_6_5_ERST_GET_EXECUTE_OPERATION_TIMINGS           0x10
+
+///
+/// ERST Action Command Status
+///
+#define EFI_ACPI_6_5_ERST_STATUS_SUCCESS                 0x00
+#define EFI_ACPI_6_5_ERST_STATUS_NOT_ENOUGH_SPACE        0x01
+#define EFI_ACPI_6_5_ERST_STATUS_HARDWARE_NOT_AVAILABLE  0x02
+#define EFI_ACPI_6_5_ERST_STATUS_FAILED                  0x03
+#define EFI_ACPI_6_5_ERST_STATUS_RECORD_STORE_EMPTY      0x04
+#define EFI_ACPI_6_5_ERST_STATUS_RECORD_NOT_FOUND        0x05
+
+///
+/// ERST Serialization Instructions
+///
+#define EFI_ACPI_6_5_ERST_READ_REGISTER                  0x00
+#define EFI_ACPI_6_5_ERST_READ_REGISTER_VALUE            0x01
+#define EFI_ACPI_6_5_ERST_WRITE_REGISTER                 0x02
+#define EFI_ACPI_6_5_ERST_WRITE_REGISTER_VALUE           0x03
+#define EFI_ACPI_6_5_ERST_NOOP                           0x04
+#define EFI_ACPI_6_5_ERST_LOAD_VAR1                      0x05
+#define EFI_ACPI_6_5_ERST_LOAD_VAR2                      0x06
+#define EFI_ACPI_6_5_ERST_STORE_VAR1                     0x07
+#define EFI_ACPI_6_5_ERST_ADD                            0x08
+#define EFI_ACPI_6_5_ERST_SUBTRACT                       0x09
+#define EFI_ACPI_6_5_ERST_ADD_VALUE                      0x0A
+#define EFI_ACPI_6_5_ERST_SUBTRACT_VALUE                 0x0B
+#define EFI_ACPI_6_5_ERST_STALL                          0x0C
+#define EFI_ACPI_6_5_ERST_STALL_WHILE_TRUE               0x0D
+#define EFI_ACPI_6_5_ERST_SKIP_NEXT_INSTRUCTION_IF_TRUE  0x0E
+#define EFI_ACPI_6_5_ERST_GOTO                           0x0F
+#define EFI_ACPI_6_5_ERST_SET_SRC_ADDRESS_BASE           0x10
+#define EFI_ACPI_6_5_ERST_SET_DST_ADDRESS_BASE           0x11
+#define EFI_ACPI_6_5_ERST_MOVE_DATA                      0x12
+
+///
+/// ERST Instruction Flags
+///
+#define EFI_ACPI_6_5_ERST_PRESERVE_REGISTER  0x01
+
+///
+/// ERST Serialization Instruction Entry
+///
+typedef struct {
+  UINT8                                     SerializationAction;
+  UINT8                                     Instruction;
+  UINT8                                     Flags;
+  UINT8                                     Reserved0;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    RegisterRegion;
+  UINT64                                    Value;
+  UINT64                                    Mask;
+} EFI_ACPI_6_5_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_5_ERROR_INJECTION_TABLE_HEADER;
+
+///
+/// EINJ Version (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_ERROR_INJECTION_TABLE_REVISION  0x01
+
+///
+/// EINJ Error Injection Actions
+///
+#define EFI_ACPI_6_5_EINJ_BEGIN_INJECTION_OPERATION       0x00
+#define EFI_ACPI_6_5_EINJ_GET_TRIGGER_ERROR_ACTION_TABLE  0x01
+#define EFI_ACPI_6_5_EINJ_SET_ERROR_TYPE                  0x02
+#define EFI_ACPI_6_5_EINJ_GET_ERROR_TYPE                  0x03
+#define EFI_ACPI_6_5_EINJ_END_OPERATION                   0x04
+#define EFI_ACPI_6_5_EINJ_EXECUTE_OPERATION               0x05
+#define EFI_ACPI_6_5_EINJ_CHECK_BUSY_STATUS               0x06
+#define EFI_ACPI_6_5_EINJ_GET_COMMAND_STATUS              0x07
+#define EFI_ACPI_6_5_EINJ_TRIGGER_ERROR                   0xFF
+
+///
+/// EINJ Action Command Status
+///
+#define EFI_ACPI_6_5_EINJ_STATUS_SUCCESS          0x00
+#define EFI_ACPI_6_5_EINJ_STATUS_UNKNOWN_FAILURE  0x01
+#define EFI_ACPI_6_5_EINJ_STATUS_INVALID_ACCESS   0x02
+
+///
+/// EINJ Error Type Definition
+///
+#define EFI_ACPI_6_5_EINJ_ERROR_PROCESSOR_CORRECTABLE               (1 << 0)
+#define EFI_ACPI_6_5_EINJ_ERROR_PROCESSOR_UNCORRECTABLE_NONFATAL    (1 << 1)
+#define EFI_ACPI_6_5_EINJ_ERROR_PROCESSOR_UNCORRECTABLE_FATAL       (1 << 2)
+#define EFI_ACPI_6_5_EINJ_ERROR_MEMORY_CORRECTABLE                  (1 << 3)
+#define EFI_ACPI_6_5_EINJ_ERROR_MEMORY_UNCORRECTABLE_NONFATAL       (1 << 4)
+#define EFI_ACPI_6_5_EINJ_ERROR_MEMORY_UNCORRECTABLE_FATAL          (1 << 5)
+#define EFI_ACPI_6_5_EINJ_ERROR_PCI_EXPRESS_CORRECTABLE             (1 << 6)
+#define EFI_ACPI_6_5_EINJ_ERROR_PCI_EXPRESS_UNCORRECTABLE_NONFATAL  (1 << 7)
+#define EFI_ACPI_6_5_EINJ_ERROR_PCI_EXPRESS_UNCORRECTABLE_FATAL     (1 << 8)
+#define EFI_ACPI_6_5_EINJ_ERROR_PLATFORM_CORRECTABLE                (1 << 9)
+#define EFI_ACPI_6_5_EINJ_ERROR_PLATFORM_UNCORRECTABLE_NONFATAL     (1 << 10)
+#define EFI_ACPI_6_5_EINJ_ERROR_PLATFORM_UNCORRECTABLE_FATAL        (1 << 11)
+
+///
+/// EINJ Injection Instructions
+///
+#define EFI_ACPI_6_5_EINJ_READ_REGISTER         0x00
+#define EFI_ACPI_6_5_EINJ_READ_REGISTER_VALUE   0x01
+#define EFI_ACPI_6_5_EINJ_WRITE_REGISTER        0x02
+#define EFI_ACPI_6_5_EINJ_WRITE_REGISTER_VALUE  0x03
+#define EFI_ACPI_6_5_EINJ_NOOP                  0x04
+
+///
+/// EINJ Instruction Flags
+///
+#define EFI_ACPI_6_5_EINJ_PRESERVE_REGISTER  0x01
+
+///
+/// EINJ Injection Instruction Entry
+///
+typedef struct {
+  UINT8                                     InjectionAction;
+  UINT8                                     Instruction;
+  UINT8                                     Flags;
+  UINT8                                     Reserved0;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    RegisterRegion;
+  UINT64                                    Value;
+  UINT64                                    Mask;
+} EFI_ACPI_6_5_EINJ_INJECTION_INSTRUCTION_ENTRY;
+
+///
+/// EINJ Trigger Action Table
+///
+typedef struct {
+  UINT32    HeaderSize;
+  UINT32    Revision;
+  UINT32    TableSize;
+  UINT32    EntryCount;
+} EFI_ACPI_6_5_EINJ_TRIGGER_ACTION_TABLE;
+
+///
+/// Platform Communications Channel Table (PCCT)
+///
+typedef struct {
+  EFI_ACPI_DESCRIPTION_HEADER    Header;
+  UINT32                         Flags;
+  UINT64                         Reserved;
+} EFI_ACPI_6_5_PLATFORM_COMMUNICATION_CHANNEL_TABLE_HEADER;
+
+///
+/// PCCT Version (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_PLATFORM_COMMUNICATION_CHANNEL_TABLE_REVISION  0x02
+
+///
+/// PCCT Global Flags
+///
+#define EFI_ACPI_6_5_PCCT_FLAGS_PLATFORM_INTERRUPT  BIT0
+
+//
+// PCCT Subspace type
+//
+#define EFI_ACPI_6_5_PCCT_SUBSPACE_TYPE_GENERIC                        0x00
+#define EFI_ACPI_6_5_PCCT_SUBSPACE_TYPE_1_HW_REDUCED_COMMUNICATIONS    0x01
+#define EFI_ACPI_6_5_PCCT_SUBSPACE_TYPE_2_HW_REDUCED_COMMUNICATIONS    0x02
+#define EFI_ACPI_6_5_PCCT_SUBSPACE_TYPE_3_EXTENDED_PCC                 0x03
+#define EFI_ACPI_6_5_PCCT_SUBSPACE_TYPE_4_EXTENDED_PCC                 0x04
+#define EFI_ACPI_6_5_PCCT_SUBSPACE_TYPE_5_HW_REGISTERS_COMMUNICATIONS  0x05
+
+///
+/// PCC Subspace Structure Header
+///
+typedef struct {
+  UINT8    Type;
+  UINT8    Length;
+} EFI_ACPI_6_5_PCCT_SUBSPACE_HEADER;
+
+///
+/// Generic Communications Subspace Structure
+///
+typedef struct {
+  UINT8                                     Type;
+  UINT8                                     Length;
+  UINT8                                     Reserved[6];
+  UINT64                                    BaseAddress;
+  UINT64                                    AddressLength;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    DoorbellRegister;
+  UINT64                                    DoorbellPreserve;
+  UINT64                                    DoorbellWrite;
+  UINT32                                    NominalLatency;
+  UINT32                                    MaximumPeriodicAccessRate;
+  UINT16                                    MinimumRequestTurnaroundTime;
+} EFI_ACPI_6_5_PCCT_SUBSPACE_GENERIC;
+
+///
+/// Generic Communications Channel Shared Memory Region
+///
+
+typedef struct {
+  UINT8    Command;
+  UINT8    Reserved           : 7;
+  UINT8    NotifyOnCompletion : 1;
+} EFI_ACPI_6_5_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_5_PCCT_GENERIC_SHARED_MEMORY_REGION_STATUS;
+
+typedef struct {
+  UINT32                                                    Signature;
+  EFI_ACPI_6_5_PCCT_GENERIC_SHARED_MEMORY_REGION_COMMAND    Command;
+  EFI_ACPI_6_5_PCCT_GENERIC_SHARED_MEMORY_REGION_STATUS     Status;
+} EFI_ACPI_6_5_PCCT_GENERIC_SHARED_MEMORY_REGION_HEADER;
+
+#define EFI_ACPI_6_5_PCCT_SUBSPACE_PLATFORM_INTERRUPT_FLAGS_POLARITY  BIT0
+#define EFI_ACPI_6_5_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_5_GENERIC_ADDRESS_STRUCTURE    DoorbellRegister;
+  UINT64                                    DoorbellPreserve;
+  UINT64                                    DoorbellWrite;
+  UINT32                                    NominalLatency;
+  UINT32                                    MaximumPeriodicAccessRate;
+  UINT16                                    MinimumRequestTurnaroundTime;
+} EFI_ACPI_6_5_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_5_GENERIC_ADDRESS_STRUCTURE    DoorbellRegister;
+  UINT64                                    DoorbellPreserve;
+  UINT64                                    DoorbellWrite;
+  UINT32                                    NominalLatency;
+  UINT32                                    MaximumPeriodicAccessRate;
+  UINT16                                    MinimumRequestTurnaroundTime;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    PlatformInterruptAckRegister;
+  UINT64                                    PlatformInterruptAckPreserve;
+  UINT64                                    PlatformInterruptAckWrite;
+} EFI_ACPI_6_5_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_5_GENERIC_ADDRESS_STRUCTURE    DoorbellRegister;
+  UINT64                                    DoorbellPreserve;
+  UINT64                                    DoorbellWrite;
+  UINT32                                    NominalLatency;
+  UINT32                                    MaximumPeriodicAccessRate;
+  UINT32                                    MinimumRequestTurnaroundTime;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    PlatformInterruptAckRegister;
+  UINT64                                    PlatformInterruptAckPreserve;
+  UINT64                                    PlatformInterruptAckSet;
+  UINT8                                     Reserved1[8];
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    CommandCompleteCheckRegister;
+  UINT64                                    CommandCompleteCheckMask;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    CommandCompleteUpdateRegister;
+  UINT64                                    CommandCompleteUpdatePreserve;
+  UINT64                                    CommandCompleteUpdateSet;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    ErrorStatusRegister;
+  UINT64                                    ErrorStatusMask;
+} EFI_ACPI_6_5_PCCT_SUBSPACE_3_EXTENDED_PCC;
+
+///
+/// Type 4 Extended PCC Subspace Structure
+///
+typedef EFI_ACPI_6_5_PCCT_SUBSPACE_3_EXTENDED_PCC EFI_ACPI_6_5_PCCT_SUBSPACE_4_EXTENDED_PCC;
+
+#define EFI_ACPI_6_5_PCCT_MASTER_SLAVE_COMMUNICATIONS_CHANNEL_FLAGS_NOTIFY_ON_COMPLETION  BIT0
+
+typedef struct {
+  UINT32    Signature;
+  UINT32    Flags;
+  UINT32    Length;
+  UINT32    Command;
+} EFI_ACPI_6_5_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_5_GENERIC_ADDRESS_STRUCTURE    DoorbellRegister;
+  UINT64                                    DoorbellPreserve;
+  UINT64                                    DoorbellWrite;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    CommandCompleteCheckRegister;
+  UINT64                                    CommandCompleteCheckMask;
+  EFI_ACPI_6_5_GENERIC_ADDRESS_STRUCTURE    ErrorStatusRegister;
+  UINT64                                    ErrorStatusMask;
+  UINT32                                    NominalLatency;
+  UINT32                                    MinimumRequestTurnaroundTime;
+} EFI_ACPI_6_5_PCCT_SUBSPACE_5_HW_REGISTERS_COMMUNICATIONS;
+
+///
+/// Reduced PCC Subspace Shared Memory Region
+///
+typedef struct {
+  UINT32    Signature;
+  // UINT8       CommunicationSubspace[];
+} EFI_6_5_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_5_PLATFORM_DEBUG_TRIGGER_TABLE_HEADER;
+
+///
+/// PDTT Revision (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_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_5_PDTT_PCC_IDENTIFIER;
+
+///
+/// PCC Commands Codes used by Platform Debug Trigger Table
+///
+#define EFI_ACPI_6_5_PDTT_PCC_COMMAND_DOORBELL_ONLY    0x00
+#define EFI_ACPI_6_5_PDTT_PCC_COMMAND_VENDOR_SPECIFIC  0x01
+
+///
+/// PDTT Platform Communication Channel
+///
+typedef EFI_ACPI_6_5_PCCT_GENERIC_SHARED_MEMORY_REGION_HEADER EFI_ACPI_6_5_PDTT_PCC;
+
+///
+/// Processor Properties Topology Table (PPTT)
+///
+typedef struct {
+  EFI_ACPI_DESCRIPTION_HEADER    Header;
+} EFI_ACPI_6_5_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE_HEADER;
+
+///
+/// PPTT Revision (as defined in ACPI 6.5 spec.)
+///
+#define EFI_ACPI_6_5_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE_REVISION  0x03
+
+///
+/// PPTT types
+///
+#define EFI_ACPI_6_5_PPTT_TYPE_PROCESSOR  0x00
+#define EFI_ACPI_6_5_PPTT_TYPE_CACHE      0x01
+
+///
+/// PPTT Structure Header
+///
+typedef struct {
+  UINT8    Type;
+  UINT8    Length;
+  UINT8    Reserved[2];
+} EFI_ACPI_6_5_PPTT_STRUCTURE_HEADER;
+
+///
+/// For PPTT struct processor flags
+///
+#define EFI_ACPI_6_5_PPTT_PACKAGE_NOT_PHYSICAL          0x0
+#define EFI_ACPI_6_5_PPTT_PACKAGE_PHYSICAL              0x1
+#define EFI_ACPI_6_5_PPTT_PROCESSOR_ID_INVALID          0x0
+#define EFI_ACPI_6_5_PPTT_PROCESSOR_ID_VALID            0x1
+#define EFI_ACPI_6_5_PPTT_PROCESSOR_IS_NOT_THREAD       0x0
+#define EFI_ACPI_6_5_PPTT_PROCESSOR_IS_THREAD           0x1
+#define EFI_ACPI_6_5_PPTT_NODE_IS_NOT_LEAF              0x0
+#define EFI_ACPI_6_5_PPTT_NODE_IS_LEAF                  0x1
+#define EFI_ACPI_6_5_PPTT_IMPLEMENTATION_NOT_IDENTICAL  0x0
+#define EFI_ACPI_6_5_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_5_PPTT_STRUCTURE_PROCESSOR_FLAGS;
+
+///
+/// Processor hierarchy node structure
+///
+typedef struct {
+  UINT8                                          Type;
+  UINT8                                          Length;
+  UINT8                                          Reserved[2];
+  EFI_ACPI_6_5_PPTT_STRUCTURE_PROCESSOR_FLAGS    Flags;
+  UINT32                                         Parent;
+  UINT32                                         AcpiProcessorId;
+  UINT32                                         NumberOfPrivateResources;
+} EFI_ACPI_6_5_PPTT_STRUCTURE_PROCESSOR;
+
+///
+/// For PPTT struct cache flags
+///
+#define EFI_ACPI_6_5_PPTT_CACHE_SIZE_INVALID       0x0
+#define EFI_ACPI_6_5_PPTT_CACHE_SIZE_VALID         0x1
+#define EFI_ACPI_6_5_PPTT_NUMBER_OF_SETS_INVALID   0x0
+#define EFI_ACPI_6_5_PPTT_NUMBER_OF_SETS_VALID     0x1
+#define EFI_ACPI_6_5_PPTT_ASSOCIATIVITY_INVALID    0x0
+#define EFI_ACPI_6_5_PPTT_ASSOCIATIVITY_VALID      0x1
+#define EFI_ACPI_6_5_PPTT_ALLOCATION_TYPE_INVALID  0x0
+#define EFI_ACPI_6_5_PPTT_ALLOCATION_TYPE_VALID    0x1
+#define EFI_ACPI_6_5_PPTT_CACHE_TYPE_INVALID       0x0
+#define EFI_ACPI_6_5_PPTT_CACHE_TYPE_VALID         0x1
+#define EFI_ACPI_6_5_PPTT_WRITE_POLICY_INVALID     0x0
+#define EFI_ACPI_6_5_PPTT_WRITE_POLICY_VALID       0x1
+#define EFI_ACPI_6_5_PPTT_LINE_SIZE_INVALID        0x0
+#define EFI_ACPI_6_5_PPTT_LINE_SIZE_VALID          0x1
+#define EFI_ACPI_6_5_PPTT_CACHE_ID_INVALID         0x0
+#define EFI_ACPI_6_5_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_5_PPTT_STRUCTURE_CACHE_FLAGS;
+
+///
+/// For cache attributes
+///
+#define EFI_ACPI_6_5_CACHE_ATTRIBUTES_ALLOCATION_READ             0x0
+#define EFI_ACPI_6_5_CACHE_ATTRIBUTES_ALLOCATION_WRITE            0x1
+#define EFI_ACPI_6_5_CACHE_ATTRIBUTES_ALLOCATION_READ_WRITE       0x2
+#define EFI_ACPI_6_5_CACHE_ATTRIBUTES_CACHE_TYPE_DATA             0x0
+#define EFI_ACPI_6_5_CACHE_ATTRIBUTES_CACHE_TYPE_INSTRUCTION      0x1
+#define EFI_ACPI_6_5_CACHE_ATTRIBUTES_CACHE_TYPE_UNIFIED          0x2
+#define EFI_ACPI_6_5_CACHE_ATTRIBUTES_WRITE_POLICY_WRITE_BACK     0x0
+#define EFI_ACPI_6_5_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_5_PPTT_STRUCTURE_CACHE_ATTRIBUTES;
+
+///
+/// Cache Type Structure
+///
+typedef struct {
+  UINT8                                           Type;
+  UINT8                                           Length;
+  UINT8                                           Reserved[2];
+  EFI_ACPI_6_5_PPTT_STRUCTURE_CACHE_FLAGS         Flags;
+  UINT32                                          NextLevelOfCache;
+  UINT32                                          Size;
+  UINT32                                          NumberOfSets;
+  UINT8                                           Associativity;
+  EFI_ACPI_6_5_PPTT_STRUCTURE_CACHE_ATTRIBUTES    Attributes;
+  UINT16                                          LineSize;
+  UINT32                                          CacheId;
+} EFI_ACPI_6_5_PPTT_STRUCTURE_CACHE;
+
+///
+/// Platform Health Assessment Table (PHAT) Format
+///
+typedef struct {
+  EFI_ACPI_DESCRIPTION_HEADER    Header;
+  // UINT8                         PlatformTelemetryRecords[];
+} EFI_ACPI_6_5_PLATFORM_HEALTH_ASSESSMENT_TABLE;
+
+#define EFI_ACPI_6_5_PLATFORM_HEALTH_ASSESSMENT_TABLE_REVISION  0x01
+
+///
+/// PHAT Record Format
+///
+typedef struct {
+  UINT16    PlatformHealthAssessmentRecordType;
+  UINT16    RecordLength;
+  UINT8     Revision;
+  // UINT8   Data[];
+} EFI_ACPI_6_5_PHAT_RECORD;
+
+///
+/// PHAT Record Type Format
+///
+#define EFI_ACPI_6_5_PHAT_RECORD_TYPE_FIRMWARE_VERSION_DATA_RECORD  0x0000
+#define EFI_ACPI_6_5_PHAT_RECORD_TYPE_FIRMWARE_HEALTH_DATA_RECORD   0x0001
+
+///
+/// PHAT Version Element
+///
+typedef struct {
+  GUID      ComponentId;
+  UINT64    VersionValue;
+  UINT32    ProducerId;
+} EFI_ACPI_6_5_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_5_PHAT_FIRMWARE_VERISON_DATA_RECORD;
+
+#define EFI_ACPI_6_5_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_5_PHAT_FIRMWARE_HEALTH_DATA_RECORD_STRUCTURE;
+
+#define EFI_ACPI_6_5_PHAT_FIRMWARE_HEALTH_DATA_RECORD_REVISION  0x01
+
+///
+/// Firmware Health Data Record device health state
+///
+#define EFI_ACPI_6_5_PHAT_FIRMWARE_HEALTH_DATA_RECORD_ERRORS_FOUND     0x00
+#define EFI_ACPI_6_5_PHAT_FIRMWARE_HEALTH_DATA_RECORD_NO_ERRORS_FOUND  0x01
+#define EFI_ACPI_6_5_PHAT_FIRMWARE_HEALTH_DATA_RECORD_UNKNOWN          0x02
+#define EFI_ACPI_6_5_PHAT_FIRMWARE_HEALTH_DATA_RECORD_ADVISORY         0x03
+
+//
+// Known table signatures
+//
+
+///
+/// "RSD PTR " Root System Description Pointer
+///
+#define EFI_ACPI_6_5_ROOT_SYSTEM_DESCRIPTION_POINTER_SIGNATURE  SIGNATURE_64('R', 'S', 'D', ' ', 'P', 'T', 'R', ' ')
+
+///
+/// "APIC" Multiple APIC Description Table
+///
+#define EFI_ACPI_6_5_MULTIPLE_APIC_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('A', 'P', 'I', 'C')
+
+///
+/// "APMT" Arm Performance Monitoring Unit Table
+///
+#define EFI_ACPI_6_5_ARM_PERFORMANCE_MONITORING_UNIT_TABLE_SIGNATURE  SIGNATURE_32('A', 'P', 'M', 'T')
+
+///
+/// "BERT" Boot Error Record Table
+///
+#define EFI_ACPI_6_5_BOOT_ERROR_RECORD_TABLE_SIGNATURE  SIGNATURE_32('B', 'E', 'R', 'T')
+
+///
+/// "BGRT" Boot Graphics Resource Table
+///
+#define EFI_ACPI_6_5_BOOT_GRAPHICS_RESOURCE_TABLE_SIGNATURE  SIGNATURE_32('B', 'G', 'R', 'T')
+
+///
+/// "CDIT" Component Distance Information Table
+///
+#define EFI_ACPI_6_5_COMPONENT_DISTANCE_INFORMATION_TABLE_SIGNATURE  SIGNATURE_32('C', 'D', 'I', 'T')
+
+///
+/// "CPEP" Corrected Platform Error Polling Table
+///
+#define EFI_ACPI_6_5_CORRECTED_PLATFORM_ERROR_POLLING_TABLE_SIGNATURE  SIGNATURE_32('C', 'P', 'E', 'P')
+
+///
+/// "CRAT" Component Resource Attribute Table
+///
+#define EFI_ACPI_6_5_COMPONENT_RESOURCE_ATTRIBUTE_TABLE_SIGNATURE  SIGNATURE_32('C', 'R', 'A', 'T')
+
+///
+/// "DSDT" Differentiated System Description Table
+///
+#define EFI_ACPI_6_5_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('D', 'S', 'D', 'T')
+
+///
+/// "ECDT" Embedded Controller Boot Resources Table
+///
+#define EFI_ACPI_6_5_EMBEDDED_CONTROLLER_BOOT_RESOURCES_TABLE_SIGNATURE  SIGNATURE_32('E', 'C', 'D', 'T')
+
+///
+/// "EINJ" Error Injection Table
+///
+#define EFI_ACPI_6_5_ERROR_INJECTION_TABLE_SIGNATURE  SIGNATURE_32('E', 'I', 'N', 'J')
+
+///
+/// "ERST" Error Record Serialization Table
+///
+#define EFI_ACPI_6_5_ERROR_RECORD_SERIALIZATION_TABLE_SIGNATURE  SIGNATURE_32('E', 'R', 'S', 'T')
+
+///
+/// "FACP" Fixed ACPI Description Table
+///
+#define EFI_ACPI_6_5_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('F', 'A', 'C', 'P')
+
+///
+/// "FACS" Firmware ACPI Control Structure
+///
+#define EFI_ACPI_6_5_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE  SIGNATURE_32('F', 'A', 'C', 'S')
+
+///
+/// "FPDT" Firmware Performance Data Table
+///
+#define EFI_ACPI_6_5_FIRMWARE_PERFORMANCE_DATA_TABLE_SIGNATURE  SIGNATURE_32('F', 'P', 'D', 'T')
+
+///
+/// "GTDT" Generic Timer Description Table
+///
+#define EFI_ACPI_6_5_GENERIC_TIMER_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('G', 'T', 'D', 'T')
+
+///
+/// "HEST" Hardware Error Source Table
+///
+#define EFI_ACPI_6_5_HARDWARE_ERROR_SOURCE_TABLE_SIGNATURE  SIGNATURE_32('H', 'E', 'S', 'T')
+
+///
+/// "HMAT" Heterogeneous Memory Attribute Table
+///
+#define EFI_ACPI_6_5_HETEROGENEOUS_MEMORY_ATTRIBUTE_TABLE_SIGNATURE  SIGNATURE_32('H', 'M', 'A', 'T')
+
+///
+/// "MPST" Memory Power State Table
+///
+#define EFI_ACPI_6_5_MEMORY_POWER_STATE_TABLE_SIGNATURE  SIGNATURE_32('M', 'P', 'S', 'T')
+
+///
+/// "MSCT" Maximum System Characteristics Table
+///
+#define EFI_ACPI_6_5_MAXIMUM_SYSTEM_CHARACTERISTICS_TABLE_SIGNATURE  SIGNATURE_32('M', 'S', 'C', 'T')
+
+///
+/// "NFIT" NVDIMM Firmware Interface Table
+///
+#define EFI_ACPI_6_5_NVDIMM_FIRMWARE_INTERFACE_TABLE_STRUCTURE_SIGNATURE  SIGNATURE_32('N', 'F', 'I', 'T')
+
+///
+/// "PDTT" Platform Debug Trigger Table
+///
+#define EFI_ACPI_6_5_PLATFORM_DEBUG_TRIGGER_TABLE_STRUCTURE_SIGNATURE  SIGNATURE_32('P', 'D', 'T', 'T')
+
+///
+/// "PMTT" Platform Memory Topology Table
+///
+#define EFI_ACPI_6_5_PLATFORM_MEMORY_TOPOLOGY_TABLE_SIGNATURE  SIGNATURE_32('P', 'M', 'T', 'T')
+
+///
+/// "PPTT" Processor Properties Topology Table
+///
+#define EFI_ACPI_6_5_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE_STRUCTURE_SIGNATURE  SIGNATURE_32('P', 'P', 'T', 'T')
+
+///
+/// "PSDT" Persistent System Description Table
+///
+#define EFI_ACPI_6_5_PERSISTENT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('P', 'S', 'D', 'T')
+
+///
+/// "RASF" ACPI RAS Feature Table
+///
+#define EFI_ACPI_6_5_ACPI_RAS_FEATURE_TABLE_SIGNATURE  SIGNATURE_32('R', 'A', 'S', 'F')
+
+///
+/// "RSDT" Root System Description Table
+///
+#define EFI_ACPI_6_5_ROOT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('R', 'S', 'D', 'T')
+
+///
+/// "SBST" Smart Battery Specification Table
+///
+#define EFI_ACPI_6_5_SMART_BATTERY_SPECIFICATION_TABLE_SIGNATURE  SIGNATURE_32('S', 'B', 'S', 'T')
+
+///
+/// "SDEV" Secure DEVices Table
+///
+#define EFI_ACPI_6_5_SECURE_DEVICES_TABLE_SIGNATURE  SIGNATURE_32('S', 'D', 'E', 'V')
+
+///
+/// "SLIT" System Locality Information Table
+///
+#define EFI_ACPI_6_5_SYSTEM_LOCALITY_INFORMATION_TABLE_SIGNATURE  SIGNATURE_32('S', 'L', 'I', 'T')
+
+///
+/// "SRAT" System Resource Affinity Table
+///
+#define EFI_ACPI_6_5_SYSTEM_RESOURCE_AFFINITY_TABLE_SIGNATURE  SIGNATURE_32('S', 'R', 'A', 'T')
+
+///
+/// "SSDT" Secondary System Description Table
+///
+#define EFI_ACPI_6_5_SECONDARY_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('S', 'S', 'D', 'T')
+
+///
+/// "XSDT" Extended System Description Table
+///
+#define EFI_ACPI_6_5_EXTENDED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('X', 'S', 'D', 'T')
+
+///
+/// "BOOT" MS Simple Boot Spec
+///
+#define EFI_ACPI_6_5_SIMPLE_BOOT_FLAG_TABLE_SIGNATURE  SIGNATURE_32('B', 'O', 'O', 'T')
+
+///
+/// "CSRT" MS Core System Resource Table
+///
+#define EFI_ACPI_6_5_CORE_SYSTEM_RESOURCE_TABLE_SIGNATURE  SIGNATURE_32('C', 'S', 'R', 'T')
+
+///
+/// "DBG2" MS Debug Port 2 Spec
+///
+#define EFI_ACPI_6_5_DEBUG_PORT_2_TABLE_SIGNATURE  SIGNATURE_32('D', 'B', 'G', '2')
+
+///
+/// "DBGP" MS Debug Port Spec
+///
+#define EFI_ACPI_6_5_DEBUG_PORT_TABLE_SIGNATURE  SIGNATURE_32('D', 'B', 'G', 'P')
+
+///
+/// "DMAR" DMA Remapping Table
+///
+#define EFI_ACPI_6_5_DMA_REMAPPING_TABLE_SIGNATURE  SIGNATURE_32('D', 'M', 'A', 'R')
+
+///
+/// "DRTM" Dynamic Root of Trust for Measurement Table
+///
+#define EFI_ACPI_6_5_DYNAMIC_ROOT_OF_TRUST_FOR_MEASUREMENT_TABLE_SIGNATURE  SIGNATURE_32('D', 'R', 'T', 'M')
+
+///
+/// "ETDT" Event Timer Description Table
+///
+#define EFI_ACPI_6_5_EVENT_TIMER_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('E', 'T', 'D', 'T')
+
+///
+/// "HPET" IA-PC High Precision Event Timer Table
+///
+#define EFI_ACPI_6_5_HIGH_PRECISION_EVENT_TIMER_TABLE_SIGNATURE  SIGNATURE_32('H', 'P', 'E', 'T')
+
+///
+/// "iBFT" iSCSI Boot Firmware Table
+///
+#define EFI_ACPI_6_5_ISCSI_BOOT_FIRMWARE_TABLE_SIGNATURE  SIGNATURE_32('i', 'B', 'F', 'T')
+
+///
+/// "IORT" I/O Remapping Table
+///
+#define EFI_ACPI_6_5_IO_REMAPPING_TABLE_SIGNATURE  SIGNATURE_32('I', 'O', 'R', 'T')
+
+///
+/// "IVRS" I/O Virtualization Reporting Structure
+///
+#define EFI_ACPI_6_5_IO_VIRTUALIZATION_REPORTING_STRUCTURE_SIGNATURE  SIGNATURE_32('I', 'V', 'R', 'S')
+
+///
+/// "LPIT" Low Power Idle Table
+///
+#define EFI_ACPI_6_5_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_5_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_5_MANAGEMENT_CONTROLLER_HOST_INTERFACE_TABLE_SIGNATURE  SIGNATURE_32('M', 'C', 'H', 'I')
+
+///
+/// "MSDM" MS Data Management Table
+///
+#define EFI_ACPI_6_5_DATA_MANAGEMENT_TABLE_SIGNATURE  SIGNATURE_32('M', 'S', 'D', 'M')
+
+///
+/// "PCCT" Platform Communications Channel Table
+///
+#define EFI_ACPI_6_5_PLATFORM_COMMUNICATIONS_CHANNEL_TABLE_SIGNATURE  SIGNATURE_32('P', 'C', 'C', 'T')
+
+///
+/// "PHAT" Platform Health Assessment Table
+///
+#define EFI_ACPI_6_5_PLATFORM_HEALTH_ASSESSMENT_TABLE_SIGNATURE  SIGNATURE_32('P', 'H', 'A', 'T')
+
+///
+/// "SDEI" Software Delegated Exceptions Interface Table
+///
+#define EFI_ACPI_6_5_SOFTWARE_DELEGATED_EXCEPTIONS_INTERFACE_TABLE_SIGNATURE  SIGNATURE_32('S', 'D', 'E', 'I')
+
+///
+/// "SLIC" MS Software Licensing Table Specification
+///
+#define EFI_ACPI_6_5_SOFTWARE_LICENSING_TABLE_SIGNATURE  SIGNATURE_32('S', 'L', 'I', 'C')
+
+///
+/// "SPCR" Serial Port Concole Redirection Table
+///
+#define EFI_ACPI_6_5_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_SIGNATURE  SIGNATURE_32('S', 'P', 'C', 'R')
+
+///
+/// "SPMI" Server Platform Management Interface Table
+///
+#define EFI_ACPI_6_5_SERVER_PLATFORM_MANAGEMENT_INTERFACE_TABLE_SIGNATURE  SIGNATURE_32('S', 'P', 'M', 'I')
+
+///
+/// "STAO" _STA Override Table
+///
+#define EFI_ACPI_6_5_STA_OVERRIDE_TABLE_SIGNATURE  SIGNATURE_32('S', 'T', 'A', 'O')
+
+///
+/// "TCPA" Trusted Computing Platform Alliance Capabilities Table
+///
+#define EFI_ACPI_6_5_TRUSTED_COMPUTING_PLATFORM_ALLIANCE_CAPABILITIES_TABLE_SIGNATURE  SIGNATURE_32('T', 'C', 'P', 'A')
+
+///
+/// "TPM2" Trusted Computing Platform 1 Table
+///
+#define EFI_ACPI_6_5_TRUSTED_COMPUTING_PLATFORM_2_TABLE_SIGNATURE  SIGNATURE_32('T', 'P', 'M', '2')
+
+///
+/// "UEFI" UEFI ACPI Data Table
+///
+#define EFI_ACPI_6_5_UEFI_ACPI_DATA_TABLE_SIGNATURE  SIGNATURE_32('U', 'E', 'F', 'I')
+
+///
+/// "WAET" Windows ACPI Emulated Devices Table
+///
+#define EFI_ACPI_6_5_WINDOWS_ACPI_EMULATED_DEVICES_TABLE_SIGNATURE  SIGNATURE_32('W', 'A', 'E', 'T')
+
+///
+/// "WDAT" Watchdog Action Table
+///
+#define EFI_ACPI_6_5_WATCHDOG_ACTION_TABLE_SIGNATURE  SIGNATURE_32('W', 'D', 'A', 'T')
+
+///
+/// "WDRT" Watchdog Resource Table
+///
+#define EFI_ACPI_6_5_WATCHDOG_RESOURCE_TABLE_SIGNATURE  SIGNATURE_32('W', 'D', 'R', 'T')
+
+///
+/// "WPBT" MS Platform Binary Table
+///
+#define EFI_ACPI_6_5_PLATFORM_BINARY_TABLE_SIGNATURE  SIGNATURE_32('W', 'P', 'B', 'T')
+
+///
+/// "WSMT" Windows SMM Security Mitigation Table
+///
+#define EFI_ACPI_6_5_WINDOWS_SMM_SECURITY_MITIGATION_TABLE_SIGNATURE  SIGNATURE_32('W', 'S', 'M', 'T')
+
+///
+/// "XENV" Xen Project Table
+///
+#define EFI_ACPI_6_5_XEN_PROJECT_TABLE_SIGNATURE  SIGNATURE_32('X', 'E', 'N', 'V')
+
+#pragma pack()
+
+#endif
-- 
2.27.0



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