SecurityPkg/Include/Guid/Tcg2PhysicalPresenceData.h

   1 /** @file
   2   Define the variable data structures used for TCG2 physical presence.
   3   The TPM2 request from firmware or OS is saved to variable. And it is
   4   cleared after it is processed in the next boot cycle. The TPM2 response
   5   is saved to variable.
   6
   7 Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved. <BR>
   8 SPDX-License-Identifier: BSD-2-Clause-Patent
   9
  10 **/
  11
  12 #ifndef __TCG2_PHYSICAL_PRESENCE_DATA_GUID_H__
  13 #define __TCG2_PHYSICAL_PRESENCE_DATA_GUID_H__
  14
  15 #define EFI_TCG2_PHYSICAL_PRESENCE_DATA_GUID \
  16   { \
  17     0xaeb9c5c1, 0x94f1, 0x4d02, { 0xbf, 0xd9, 0x46, 0x2, 0xdb, 0x2d, 0x3c, 0x54 } \
  18   }
  19
  20 #define TCG2_PHYSICAL_PRESENCE_VARIABLE  L"Tcg2PhysicalPresence"
  21
  22 typedef struct {
  23   UINT8   PPRequest;      ///< Physical Presence request command.
  24   UINT32  PPRequestParameter; ///< Physical Presence request Parameter.
  25   UINT8   LastPPRequest;
  26   UINT32  PPResponse;
  27 } EFI_TCG2_PHYSICAL_PRESENCE;
  28
  29 //
  30 // This variable is used to save TCG2 Management Flags and corresponding operations.
  31 // It should be protected from malicious software (e.g. Set it as read-only variable).
  32 //
  33 #define TCG2_PHYSICAL_PRESENCE_FLAGS_VARIABLE  L"Tcg2PhysicalPresenceFlags"
  34 typedef struct {
  35   UINT32  PPFlags;
  36 } EFI_TCG2_PHYSICAL_PRESENCE_FLAGS;
  37
  38 extern EFI_GUID  gEfiTcg2PhysicalPresenceGuid;
  39
  40 #endif
  41