1 /** @file 2 Define the variable data structures used for TrEE 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) 2013 - 2015, Intel Corporation. All rights reserved. <BR> 8 This program and the accompanying materials 9 are licensed and made available under the terms and conditions of the BSD License 10 which accompanies this distribution. The full text of the license may be found at 11 http://opensource.org/licenses/bsd-license.php 12 13 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 14 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 15 16 **/ 17 18 #ifndef __TREE_PHYSICAL_PRESENCE_DATA_GUID_H__ 19 #define __TREE_PHYSICAL_PRESENCE_DATA_GUID_H__ 20 21 #define EFI_TREE_PHYSICAL_PRESENCE_DATA_GUID \ 22 { \ 23 0xf24643c2, 0xc622, 0x494e, { 0x8a, 0xd, 0x46, 0x32, 0x57, 0x9c, 0x2d, 0x5b }\ 24 } 25 26 #define TREE_PHYSICAL_PRESENCE_VARIABLE L"TrEEPhysicalPresence" 27 28 typedef struct { 29 UINT8 PPRequest; ///< Physical Presence request command. 30 UINT8 LastPPRequest; 31 UINT32 PPResponse; 32 } EFI_TREE_PHYSICAL_PRESENCE; 33 34 // 35 // The definition bit of the flags 36 // 37 // BIT0 is reserved 38 #define TREE_FLAG_NO_PPI_CLEAR BIT1 39 // BIT2 is reserved 40 #define TREE_FLAG_RESET_TRACK BIT3 41 42 // 43 // This variable is used to save TPM Management Flags and corresponding operations. 44 // It should be protected from malicious software (e.g. Set it as read-only variable). 45 // 46 #define TREE_PHYSICAL_PRESENCE_FLAGS_VARIABLE L"TrEEPhysicalPresenceFlags" 47 typedef struct { 48 UINT8 PPFlags; 49 } EFI_TREE_PHYSICAL_PRESENCE_FLAGS; 50 51 // 52 // The definition of physical presence operation actions 53 // 54 #define TREE_PHYSICAL_PRESENCE_NO_ACTION 0 55 #define TREE_PHYSICAL_PRESENCE_CLEAR_CONTROL_CLEAR 5 56 #define TREE_PHYSICAL_PRESENCE_CLEAR_CONTROL_CLEAR_2 14 57 #define TREE_PHYSICAL_PRESENCE_SET_NO_PPI_CLEAR_FALSE 17 58 #define TREE_PHYSICAL_PRESENCE_SET_NO_PPI_CLEAR_TRUE 18 59 #define TREE_PHYSICAL_PRESENCE_CLEAR_CONTROL_CLEAR_3 21 60 #define TREE_PHYSICAL_PRESENCE_CLEAR_CONTROL_CLEAR_4 22 61 62 #define TREE_PHYSICAL_PRESENCE_NO_ACTION_MAX 22 63 64 extern EFI_GUID gEfiTrEEPhysicalPresenceGuid; 65 66 #endif 67 68