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/** @file
TPM2 ACPI table definition.
Copyright (c) 2013 - 2019, Intel Corporation. All rights reserved. <BR>
Copyright (c) 2021, Ampere Computing LLC. All rights reserved. <BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _TPM2_ACPI_H_
#define _TPM2_ACPI_H_
#include <IndustryStandard/Acpi.h>
#pragma pack (1)
#define EFI_TPM2_ACPI_TABLE_REVISION_3 3
#define EFI_TPM2_ACPI_TABLE_REVISION_4 4
#define EFI_TPM2_ACPI_TABLE_REVISION EFI_TPM2_ACPI_TABLE_REVISION_4
typedef struct {
EFI_ACPI_DESCRIPTION_HEADER Header;
// Flags field is replaced in version 4 and above
// BIT0~15: PlatformClass This field is only valid for version 4 and above
// BIT16~31: Reserved
UINT32 Flags;
UINT64 AddressOfControlArea;
UINT32 StartMethod;
// UINT8 PlatformSpecificParameters[]; // size up to 12
// UINT32 Laml; // Optional
// UINT64 Lasa; // Optional
} EFI_TPM2_ACPI_TABLE;
#define EFI_TPM2_ACPI_TABLE_START_METHOD_ACPI 2
#define EFI_TPM2_ACPI_TABLE_START_METHOD_TIS 6
#define EFI_TPM2_ACPI_TABLE_START_METHOD_COMMAND_RESPONSE_BUFFER_INTERFACE 7
#define EFI_TPM2_ACPI_TABLE_START_METHOD_COMMAND_RESPONSE_BUFFER_INTERFACE_WITH_ACPI 8
#define EFI_TPM2_ACPI_TABLE_START_METHOD_COMMAND_RESPONSE_BUFFER_INTERFACE_WITH_SMC 11
typedef struct {
UINT32 Reserved;
UINT32 Error;
UINT32 Cancel;
UINT32 Start;
UINT64 InterruptControl;
UINT32 CommandSize;
UINT64 Command;
UINT32 ResponseSize;
UINT64 Response;
} EFI_TPM2_ACPI_CONTROL_AREA;
//
// Start Method Specific Parameters for ARM SMC Start Method (11)
// Refer to Table 9: Start Method Specific Parameters for ARM SMC
//
typedef struct {
UINT32 Interrupt;
UINT8 Flags;
UINT8 OperationFlags;
UINT8 Reserved[2];
UINT32 SmcFunctionId;
} EFI_TPM2_ACPI_START_METHOD_SPECIFIC_PARAMETERS_ARM_SMC;
#pragma pack ()
#endif
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