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Commit | Line | Data |
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c1d93242 | 1 | /** @file\r |
4ccef561 | 2 | Implement TPM1.2 Ownership related command.\r |
c1d93242 | 3 | \r |
b3548d32 | 4 | Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved. <BR>\r |
289b714b | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
c1d93242 JY |
6 | \r |
7 | **/\r | |
8 | \r | |
83b9662f | 9 | #include <PiPei.h>\r |
c1d93242 JY |
10 | #include <Library/BaseMemoryLib.h>\r |
11 | #include <Library/BaseLib.h>\r | |
12 | #include <Library/Tpm12DeviceLib.h>\r | |
13 | \r | |
c1d93242 JY |
14 | /**\r |
15 | Send ForceClear command to TPM1.2.\r | |
16 | \r | |
17 | @retval EFI_SUCCESS Operation completed successfully.\r | |
18 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
19 | **/\r | |
20 | EFI_STATUS\r | |
21 | EFIAPI\r | |
22 | Tpm12ForceClear (\r | |
23 | VOID\r | |
24 | )\r | |
25 | {\r | |
83b9662f MK |
26 | EFI_STATUS Status;\r |
27 | TPM_RQU_COMMAND_HDR Command;\r | |
28 | TPM_RSP_COMMAND_HDR Response;\r | |
29 | UINT32 Length;\r | |
c1d93242 JY |
30 | \r |
31 | //\r | |
32 | // send Tpm command TPM_ORD_ForceClear\r | |
33 | //\r | |
c411b485 MK |
34 | Command.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r |
35 | Command.paramSize = SwapBytes32 (sizeof (Command));\r | |
36 | Command.ordinal = SwapBytes32 (TPM_ORD_ForceClear);\r | |
37 | Length = sizeof (Response);\r | |
c1d93242 | 38 | \r |
83b9662f | 39 | Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);\r |
c1d93242 JY |
40 | if (EFI_ERROR (Status)) {\r |
41 | return Status;\r | |
42 | }\r | |
c411b485 | 43 | \r |
83b9662f | 44 | switch (SwapBytes32 (Response.returnCode)) {\r |
c411b485 MK |
45 | case TPM_SUCCESS:\r |
46 | return EFI_SUCCESS;\r | |
47 | default:\r | |
48 | return EFI_DEVICE_ERROR;\r | |
c1d93242 | 49 | }\r |
b3548d32 | 50 | }\r |