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c1d93242 JY |
1 | /** @file\r |
2 | Implement TPM1.2 Startup related command.\r | |
3 | \r | |
4 | Copyright (c) 2013, Intel Corporation. All rights reserved. <BR>\r | |
f060d160 | 5 | (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>\r |
c1d93242 JY |
6 | This program and the accompanying materials\r |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
83b9662f | 16 | #include <PiPei.h>\r |
c1d93242 JY |
17 | #include <Library/BaseMemoryLib.h>\r |
18 | #include <Library/BaseLib.h>\r | |
19 | #include <Library/Tpm12DeviceLib.h>\r | |
f060d160 | 20 | #include <Library/DebugLib.h>\r |
c1d93242 JY |
21 | \r |
22 | #pragma pack(1)\r | |
23 | \r | |
24 | typedef struct {\r | |
25 | TPM_RQU_COMMAND_HDR Hdr;\r | |
26 | TPM_STARTUP_TYPE TpmSt;\r | |
27 | } TPM_CMD_START_UP;\r | |
28 | \r | |
c1d93242 JY |
29 | #pragma pack()\r |
30 | \r | |
31 | /**\r | |
32 | Send Startup command to TPM1.2.\r | |
33 | \r | |
34 | @param TpmSt Startup Type.\r | |
35 | \r | |
36 | @retval EFI_SUCCESS Operation completed successfully.\r | |
37 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
38 | **/\r | |
39 | EFI_STATUS\r | |
40 | EFIAPI\r | |
41 | Tpm12Startup (\r | |
83b9662f | 42 | IN TPM_STARTUP_TYPE TpmSt\r |
c1d93242 JY |
43 | )\r |
44 | {\r | |
83b9662f MK |
45 | EFI_STATUS Status;\r |
46 | TPM_CMD_START_UP Command;\r | |
47 | TPM_RSP_COMMAND_HDR Response;\r | |
48 | UINT32 Length;\r | |
c1d93242 JY |
49 | \r |
50 | //\r | |
51 | // send Tpm command TPM_ORD_Startup\r | |
52 | //\r | |
83b9662f MK |
53 | Command.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r |
54 | Command.Hdr.paramSize = SwapBytes32 (sizeof (Command));\r | |
55 | Command.Hdr.ordinal = SwapBytes32 (TPM_ORD_Startup);\r | |
56 | Command.TpmSt = SwapBytes16 (TpmSt);\r | |
57 | Length = sizeof (Response);\r | |
58 | Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);\r | |
c1d93242 JY |
59 | if (EFI_ERROR (Status)) {\r |
60 | return Status;\r | |
61 | }\r | |
83b9662f | 62 | switch (SwapBytes32(Response.returnCode)) {\r |
c1d93242 | 63 | case TPM_SUCCESS:\r |
f060d160 SEHM |
64 | DEBUG ((DEBUG_INFO, "TPM12Startup: TPM_SUCCESS\n"));\r |
65 | return EFI_SUCCESS;\r | |
c1d93242 JY |
66 | case TPM_INVALID_POSTINIT:\r |
67 | // In warm reset, TPM may response TPM_INVALID_POSTINIT\r | |
f060d160 | 68 | DEBUG ((DEBUG_INFO, "TPM12Startup: TPM_INVALID_POSTINIT\n"));\r |
c1d93242 JY |
69 | return EFI_SUCCESS;\r |
70 | default:\r | |
71 | return EFI_DEVICE_ERROR;\r | |
72 | }\r | |
9318b08e JY |
73 | }\r |
74 | \r | |
75 | /**\r | |
76 | Send SaveState command to TPM1.2.\r | |
77 | \r | |
78 | @retval EFI_SUCCESS Operation completed successfully.\r | |
79 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
80 | **/\r | |
81 | EFI_STATUS\r | |
82 | EFIAPI\r | |
83 | Tpm12SaveState (\r | |
84 | VOID\r | |
85 | )\r | |
86 | {\r | |
83b9662f MK |
87 | EFI_STATUS Status;\r |
88 | TPM_RQU_COMMAND_HDR Command;\r | |
89 | TPM_RSP_COMMAND_HDR Response;\r | |
90 | UINT32 Length;\r | |
9318b08e JY |
91 | \r |
92 | //\r | |
93 | // send Tpm command TPM_ORD_SaveState\r | |
94 | //\r | |
83b9662f MK |
95 | Command.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r |
96 | Command.paramSize = SwapBytes32 (sizeof (Command));\r | |
97 | Command.ordinal = SwapBytes32 (TPM_ORD_SaveState);\r | |
98 | Length = sizeof (Response);\r | |
99 | Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);\r | |
9318b08e JY |
100 | if (EFI_ERROR (Status)) {\r |
101 | return Status;\r | |
102 | }\r | |
83b9662f | 103 | switch (SwapBytes32 (Response.returnCode)) {\r |
9318b08e JY |
104 | case TPM_SUCCESS:\r |
105 | return EFI_SUCCESS;\r | |
106 | default:\r | |
107 | return EFI_DEVICE_ERROR;\r | |
108 | }\r | |
109 | }\r |