2 Implement TPM1.2 Startup related command.
4 Copyright (c) 2013, 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.
16 #include <IndustryStandard/Tpm12.h>
17 #include <Library/BaseMemoryLib.h>
18 #include <Library/BaseLib.h>
19 #include <Library/Tpm12DeviceLib.h>
24 TPM_RQU_COMMAND_HDR Hdr
;
25 TPM_STARTUP_TYPE TpmSt
;
29 TPM_RSP_COMMAND_HDR Hdr
;
33 TPM_RQU_COMMAND_HDR Hdr
;
37 TPM_RSP_COMMAND_HDR Hdr
;
43 Send Startup command to TPM1.2.
45 @param TpmSt Startup Type.
47 @retval EFI_SUCCESS Operation completed successfully.
48 @retval EFI_DEVICE_ERROR Unexpected device behavior.
53 IN TPM_STARTUP_TYPE TpmSt
59 TPM_CMD_START_UP SendBuffer
;
60 TPM_RSP_START_UP RecvBuffer
;
64 // send Tpm command TPM_ORD_Startup
66 TpmRecvSize
= sizeof (TPM_RSP_START_UP
);
67 TpmSendSize
= sizeof (TPM_CMD_START_UP
);
68 SendBuffer
.Hdr
.tag
= SwapBytes16 (TPM_TAG_RQU_COMMAND
);
69 SendBuffer
.Hdr
.paramSize
= SwapBytes32 (TpmSendSize
);
70 SendBuffer
.Hdr
.ordinal
= SwapBytes32 (TPM_ORD_Startup
);
71 SendBuffer
.TpmSt
= SwapBytes16 (TpmSt
);
73 Status
= Tpm12SubmitCommand (TpmSendSize
, (UINT8
*)&SendBuffer
, &TpmRecvSize
, (UINT8
*)&RecvBuffer
);
74 if (EFI_ERROR (Status
)) {
77 ReturnCode
= SwapBytes32(RecvBuffer
.Hdr
.returnCode
);
80 case TPM_INVALID_POSTINIT
:
81 // In warm reset, TPM may response TPM_INVALID_POSTINIT
84 return EFI_DEVICE_ERROR
;
89 Send SaveState command to TPM1.2.
91 @retval EFI_SUCCESS Operation completed successfully.
92 @retval EFI_DEVICE_ERROR Unexpected device behavior.
103 TPM_CMD_SAVE_STATE SendBuffer
;
104 TPM_RSP_SAVE_STATE RecvBuffer
;
108 // send Tpm command TPM_ORD_SaveState
110 TpmRecvSize
= sizeof (TPM_RSP_SAVE_STATE
);
111 TpmSendSize
= sizeof (TPM_CMD_SAVE_STATE
);
112 SendBuffer
.Hdr
.tag
= SwapBytes16 (TPM_TAG_RQU_COMMAND
);
113 SendBuffer
.Hdr
.paramSize
= SwapBytes32 (TpmSendSize
);
114 SendBuffer
.Hdr
.ordinal
= SwapBytes32 (TPM_ORD_SaveState
);
116 Status
= Tpm12SubmitCommand (TpmSendSize
, (UINT8
*)&SendBuffer
, &TpmRecvSize
, (UINT8
*)&RecvBuffer
);
117 if (EFI_ERROR (Status
)) {
120 ReturnCode
= SwapBytes32(RecvBuffer
.Hdr
.returnCode
);
121 switch (ReturnCode
) {
125 return EFI_DEVICE_ERROR
;