MdePkg/Include/IndustryStandard/Tpm2Acpi.h

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