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