2 Implement TPM2 Startup related command.
4 Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved. <BR>
5 This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
15 #include <IndustryStandard/UefiTcgPlatform.h>
16 #include <Library/Tpm2CommandLib.h>
17 #include <Library/Tpm2DeviceLib.h>
18 #include <Library/BaseMemoryLib.h>
19 #include <Library/BaseLib.h>
20 #include <Library/DebugLib.h>
25 TPM2_COMMAND_HEADER Header
;
27 } TPM2_STARTUP_COMMAND
;
30 TPM2_RESPONSE_HEADER Header
;
31 } TPM2_STARTUP_RESPONSE
;
34 TPM2_COMMAND_HEADER Header
;
36 } TPM2_SHUTDOWN_COMMAND
;
39 TPM2_RESPONSE_HEADER Header
;
40 } TPM2_SHUTDOWN_RESPONSE
;
45 Send Startup command to TPM2.
47 @param[in] StartupType TPM_SU_CLEAR or TPM_SU_STATE
49 @retval EFI_SUCCESS Operation completed successfully.
50 @retval EFI_DEVICE_ERROR Unexpected device behavior.
59 TPM2_STARTUP_COMMAND Cmd
;
60 TPM2_STARTUP_RESPONSE Res
;
64 Cmd
.Header
.tag
= SwapBytes16(TPM_ST_NO_SESSIONS
);
65 Cmd
.Header
.paramSize
= SwapBytes32(sizeof(Cmd
));
66 Cmd
.Header
.commandCode
= SwapBytes32(TPM_CC_Startup
);
67 Cmd
.StartupType
= SwapBytes16(StartupType
);
69 ResultBufSize
= sizeof(Res
);
70 Status
= Tpm2SubmitCommand (sizeof(Cmd
), (UINT8
*)&Cmd
, &ResultBufSize
, (UINT8
*)&Res
);
71 if (EFI_ERROR(Status
)) {
75 ResponseCode
= SwapBytes32(Res
.Header
.responseCode
);
76 switch (ResponseCode
) {
78 case TPM_RC_INITIALIZE
:
79 // TPM_RC_INITIALIZE can be returned if Tpm2Startup is not required.
82 DEBUG ((EFI_D_ERROR
, "Tpm2Startup: Response Code error! 0x%08x\r\n", ResponseCode
));
83 return EFI_DEVICE_ERROR
;
88 Send Shutdown command to TPM2.
90 @param[in] ShutdownType TPM_SU_CLEAR or TPM_SU_STATE.
92 @retval EFI_SUCCESS Operation completed successfully.
93 @retval EFI_DEVICE_ERROR Unexpected device behavior.
98 IN TPM_SU ShutdownType
102 TPM2_SHUTDOWN_COMMAND Cmd
;
103 TPM2_SHUTDOWN_RESPONSE Res
;
104 UINT32 ResultBufSize
;
106 Cmd
.Header
.tag
= SwapBytes16(TPM_ST_NO_SESSIONS
);
107 Cmd
.Header
.paramSize
= SwapBytes32(sizeof(Cmd
));
108 Cmd
.Header
.commandCode
= SwapBytes32(TPM_CC_Shutdown
);
109 Cmd
.ShutdownType
= SwapBytes16(ShutdownType
);
111 ResultBufSize
= sizeof(Res
);
112 Status
= Tpm2SubmitCommand (sizeof(Cmd
), (UINT8
*)&Cmd
, &ResultBufSize
, (UINT8
*)&Res
);
113 if (EFI_ERROR(Status
)) {
117 if (SwapBytes32(Res
.Header
.responseCode
) != TPM_RC_SUCCESS
) {
118 DEBUG ((EFI_D_ERROR
, "Tpm2Shutdown: Response Code error! 0x%08x\r\n", SwapBytes32(Res
.Header
.responseCode
)));
119 return EFI_DEVICE_ERROR
;