MdePkg/Include/IndustryStandard/FirmwareInterfaceTable.h

   1 /** @file
   2   Industry Standard Definitions of Firmware Interface Table BIOS Specification 1.0.
   3
   4   Copyright (c) 2016 - 2020, Intel Corporation. All rights reserved.<BR>
   5   SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #ifndef __FIRMWARE_INTERFACE_TABLE_H__
  10 #define __FIRMWARE_INTERFACE_TABLE_H__
  11
  12 //
  13 // FIT Entry type definitions
  14 //
  15 #define FIT_TYPE_00_HEADER                  0x00
  16 #define FIT_TYPE_01_MICROCODE               0x01
  17 #define FIT_TYPE_02_STARTUP_ACM             0x02
  18 #define FIT_TYPE_07_BIOS_STARTUP_MODULE     0x07
  19 #define FIT_TYPE_08_TPM_POLICY              0x08
  20 #define FIT_TYPE_09_BIOS_POLICY             0x09
  21 #define FIT_TYPE_0A_TXT_POLICY              0x0A
  22 #define FIT_TYPE_0B_KEY_MANIFEST            0x0B
  23 #define FIT_TYPE_0C_BOOT_POLICY_MANIFEST    0x0C
  24 #define FIT_TYPE_10_CSE_SECURE_BOOT         0x10
  25 #define FIT_TYPE_2D_TXTSX_POLICY            0x2D
  26 #define FIT_TYPE_2F_JMP_DEBUG_POLICY        0x2F
  27 #define FIT_TYPE_7F_SKIP                    0x7F
  28
  29 #define FIT_POINTER_ADDRESS                 0xFFFFFFC0 ///< Fixed address at 4G - 40h
  30
  31 #define FIT_TYPE_VERSION                    0x0100
  32
  33 #define FIT_TYPE_00_SIGNATURE  SIGNATURE_64 ('_', 'F', 'I', 'T', '_', ' ', ' ', ' ')
  34
  35 #pragma pack(1)
  36
  37 typedef struct {
  38   //
  39   // Address is the base address of the firmware component
  40   // must be aligned on 16 byte boundary
  41   //
  42   UINT64 Address;
  43   //
  44   // Size is the span of the component in multiple of 16 bytes
  45   //
  46   UINT8  Size[3];
  47   //
  48   // Reserved must be set to 0
  49   //
  50   UINT8  Reserved;
  51   //
  52   // Component's version number in binary coded decimal (BCD) format.
  53   // For the FIT header entry, the value in this field will indicate the revision
  54   // number of the FIT data structure. The upper byte of the revision field
  55   // indicates the major revision and the lower byte indicates the minor revision.
  56   //
  57   UINT16 Version;
  58   //
  59   // FIT types 0x00 to 0x7F
  60   //
  61   UINT8  Type : 7;
  62   //
  63   // Checksum Valid indicates whether component has valid checksum.
  64   //
  65   UINT8  C_V  : 1;
  66   //
  67   // Component's checksum. The modulo sum of all the bytes in the component and
  68   // the value in this field (Chksum) must add up to zero. This field is only
  69   // valid if the C_V flag is non-zero.
  70   //
  71   UINT8  Chksum;
  72 } FIRMWARE_INTERFACE_TABLE_ENTRY;
  73
  74 #pragma pack()
  75
  76 #endif