| 1 | /** @file
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| 2 | TPM2 ACPI table definition.
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| 3 |
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| 4 | Copyright (c) 2013 - 2019, Intel Corporation. All rights reserved. <BR>
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| 5 | Copyright (c) 2021, Ampere Computing LLC. All rights reserved. <BR>
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| 6 | Copyright (c) 2024, NVIDIA CORPORATION & AFFILIATES. All rights reserved. <BR>
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| 7 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 8 |
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| 9 | **/
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| 10 |
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| 11 | #ifndef _TPM2_ACPI_H_
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| 12 | #define _TPM2_ACPI_H_
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| 13 |
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| 14 | #include <IndustryStandard/Acpi.h>
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| 15 |
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| 16 | #pragma pack (1)
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| 17 |
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| 18 | #define EFI_TPM2_ACPI_TABLE_REVISION_3 3
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| 19 | #define EFI_TPM2_ACPI_TABLE_REVISION_4 4
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| 20 | #define EFI_TPM2_ACPI_TABLE_REVISION_5 5
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| 21 | #define EFI_TPM2_ACPI_TABLE_REVISION EFI_TPM2_ACPI_TABLE_REVISION_4
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| 22 |
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| 23 | #define EFI_TPM2_ACPI_TABLE_START_METHOD_SPECIFIC_PARAMETERS_MAX_SIZE_REVISION_4 12
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| 24 | #define EFI_TPM2_ACPI_TABLE_START_METHOD_SPECIFIC_PARAMETERS_MAX_SIZE_REVISION_5 16
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| 25 | #define EFI_TPM2_ACPI_TABLE_START_METHOD_SPECIFIC_PARAMETERS_MAX_SIZE EFI_TPM2_ACPI_TABLE_START_METHOD_SPECIFIC_PARAMETERS_MAX_SIZE_REVISION_4
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| 26 |
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| 27 | typedef struct {
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| 28 | EFI_ACPI_DESCRIPTION_HEADER Header;
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| 29 | // Flags field is replaced in version 4 and above
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| 30 | // BIT0~15: PlatformClass This field is only valid for version 4 and above
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| 31 | // BIT16~31: Reserved
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| 32 | UINT32 Flags;
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| 33 | UINT64 AddressOfControlArea;
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| 34 | UINT32 StartMethod;
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| 35 | // UINT8 PlatformSpecificParameters[]; // size up to 12
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| 36 | // UINT32 Laml; // Optional
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| 37 | // UINT64 Lasa; // Optional
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| 38 | } EFI_TPM2_ACPI_TABLE;
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| 39 |
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| 40 | #define EFI_TPM2_ACPI_TABLE_START_METHOD_ACPI 2
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| 41 | #define EFI_TPM2_ACPI_TABLE_START_METHOD_TIS 6
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| 42 | #define EFI_TPM2_ACPI_TABLE_START_METHOD_COMMAND_RESPONSE_BUFFER_INTERFACE 7
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| 43 | #define EFI_TPM2_ACPI_TABLE_START_METHOD_COMMAND_RESPONSE_BUFFER_INTERFACE_WITH_ACPI 8
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| 44 | #define EFI_TPM2_ACPI_TABLE_START_METHOD_COMMAND_RESPONSE_BUFFER_INTERFACE_WITH_SMC 11
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| 45 | #define EFI_TPM2_ACPI_TABLE_START_METHOD_COMMAND_RESPONSE_BUFFER_INTERFACE_WITH_FFA 15
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| 46 |
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| 47 | typedef struct {
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| 48 | UINT32 Reserved;
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| 49 | UINT32 Error;
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| 50 | UINT32 Cancel;
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| 51 | UINT32 Start;
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| 52 | UINT64 InterruptControl;
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| 53 | UINT32 CommandSize;
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| 54 | UINT64 Command;
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| 55 | UINT32 ResponseSize;
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| 56 | UINT64 Response;
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| 57 | } EFI_TPM2_ACPI_CONTROL_AREA;
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| 58 |
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| 59 | //
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| 60 | // Start Method Specific Parameters for ARM SMC Start Method (11)
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| 61 | // Refer to Table 9: Start Method Specific Parameters for ARM SMC
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| 62 | //
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| 63 | typedef struct {
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| 64 | UINT32 Interrupt;
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| 65 | UINT8 Flags;
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| 66 | UINT8 OperationFlags;
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| 67 | UINT8 Reserved[2];
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| 68 | UINT32 SmcFunctionId;
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| 69 | } EFI_TPM2_ACPI_START_METHOD_SPECIFIC_PARAMETERS_ARM_SMC;
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| 70 |
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| 71 | #pragma pack ()
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| 72 |
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| 73 | #endif
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