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c1d93242 JY |
1 | /** @file\r |
2 | The module entry point for TrEE configuration module.\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 | |
15 | #include "TrEEConfigImpl.h"\r | |
16 | \r | |
17 | extern TPM_INSTANCE_ID mTpmInstanceId[TPM_DEVICE_MAX + 1];\r | |
18 | \r | |
19 | /**\r | |
20 | The entry point for TrEE configuration driver.\r | |
21 | \r | |
22 | @param[in] ImageHandle The image handle of the driver.\r | |
23 | @param[in] SystemTable The system table.\r | |
24 | \r | |
25 | @retval EFI_ALREADY_STARTED The driver already exists in system.\r | |
26 | @retval EFI_OUT_OF_RESOURCES Fail to execute entry point due to lack of resources.\r | |
27 | @retval EFI_SUCCES All the related protocols are installed on the driver.\r | |
28 | @retval Others Fail to install protocols as indicated.\r | |
29 | \r | |
30 | **/\r | |
31 | EFI_STATUS\r | |
32 | EFIAPI\r | |
33 | TrEEConfigDriverEntryPoint (\r | |
34 | IN EFI_HANDLE ImageHandle,\r | |
35 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
36 | )\r | |
37 | {\r | |
38 | EFI_STATUS Status;\r | |
39 | TREE_CONFIG_PRIVATE_DATA *PrivateData;\r | |
40 | TREE_CONFIGURATION TrEEConfiguration;\r | |
41 | UINTN Index;\r | |
42 | UINTN DataSize;\r | |
43 | \r | |
44 | Status = gBS->OpenProtocol (\r | |
45 | ImageHandle,\r | |
46 | &gEfiCallerIdGuid,\r | |
47 | NULL,\r | |
48 | ImageHandle,\r | |
49 | ImageHandle,\r | |
50 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
51 | );\r | |
52 | if (!EFI_ERROR (Status)) {\r | |
53 | return EFI_ALREADY_STARTED;\r | |
54 | }\r | |
55 | \r | |
56 | //\r | |
57 | // Create a private data structure.\r | |
58 | //\r | |
59 | PrivateData = AllocateCopyPool (sizeof (TREE_CONFIG_PRIVATE_DATA), &mTrEEConfigPrivateDateTemplate);\r | |
60 | ASSERT (PrivateData != NULL);\r | |
61 | \r | |
62 | //\r | |
63 | // Install private GUID.\r | |
64 | // \r | |
65 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
66 | &ImageHandle,\r | |
67 | &gEfiCallerIdGuid,\r | |
68 | PrivateData,\r | |
69 | NULL\r | |
70 | );\r | |
71 | ASSERT_EFI_ERROR (Status);\r | |
72 | \r | |
73 | DataSize = sizeof(TrEEConfiguration);\r | |
74 | Status = gRT->GetVariable (\r | |
75 | TREE_STORAGE_NAME,\r | |
76 | &gTrEEConfigFormSetGuid,\r | |
77 | NULL,\r | |
78 | &DataSize,\r | |
79 | &TrEEConfiguration\r | |
80 | );\r | |
81 | if (EFI_ERROR (Status)) {\r | |
82 | }\r | |
83 | //\r | |
84 | // We should always reinit PP request.\r | |
85 | //\r | |
86 | TrEEConfiguration.Tpm2Operation = TREE_PHYSICAL_PRESENCE_NO_ACTION;\r | |
87 | \r | |
88 | //\r | |
89 | // Sync data from PCD to variable, so that we do not need detect again in S3 phase.\r | |
90 | //\r | |
91 | \r | |
92 | //\r | |
93 | // Get data from PCD to make sure data consistant - platform driver is suppose to construct this PCD accroding to Variable\r | |
94 | //\r | |
95 | for (Index = 0; Index < sizeof(mTpmInstanceId)/sizeof(mTpmInstanceId[0]); Index++) {\r | |
96 | if (CompareGuid (PcdGetPtr(PcdTpmInstanceGuid), &mTpmInstanceId[Index].TpmInstanceGuid)) {\r | |
97 | TrEEConfiguration.TpmDevice = mTpmInstanceId[Index].TpmDevice;\r | |
98 | break;\r | |
99 | }\r | |
100 | }\r | |
101 | \r | |
102 | //\r | |
103 | // Save to variable so platform driver can get it.\r | |
104 | //\r | |
105 | Status = gRT->SetVariable (\r | |
106 | TREE_STORAGE_NAME,\r | |
107 | &gTrEEConfigFormSetGuid,\r | |
207256b7 | 108 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,\r |
c1d93242 JY |
109 | sizeof(TrEEConfiguration),\r |
110 | &TrEEConfiguration\r | |
111 | );\r | |
112 | ASSERT_EFI_ERROR (Status);\r | |
113 | \r | |
114 | //\r | |
115 | // Install TrEE configuration form\r | |
116 | //\r | |
117 | Status = InstallTrEEConfigForm (PrivateData);\r | |
118 | if (EFI_ERROR (Status)) {\r | |
119 | goto ErrorExit;\r | |
120 | }\r | |
121 | \r | |
122 | return EFI_SUCCESS;\r | |
123 | \r | |
124 | ErrorExit:\r | |
125 | if (PrivateData != NULL) {\r | |
126 | UninstallTrEEConfigForm (PrivateData);\r | |
127 | } \r | |
128 | \r | |
129 | return Status;\r | |
130 | }\r | |
131 | \r | |
132 | /**\r | |
133 | Unload the TrEE configuration form.\r | |
134 | \r | |
135 | @param[in] ImageHandle The driver's image handle.\r | |
136 | \r | |
137 | @retval EFI_SUCCESS The TrEE configuration form is unloaded.\r | |
138 | @retval Others Failed to unload the form.\r | |
139 | \r | |
140 | **/\r | |
141 | EFI_STATUS\r | |
142 | EFIAPI\r | |
143 | TrEEConfigDriverUnload (\r | |
144 | IN EFI_HANDLE ImageHandle\r | |
145 | )\r | |
146 | {\r | |
147 | EFI_STATUS Status;\r | |
148 | TREE_CONFIG_PRIVATE_DATA *PrivateData;\r | |
149 | \r | |
150 | Status = gBS->HandleProtocol (\r | |
151 | ImageHandle,\r | |
152 | &gEfiCallerIdGuid,\r | |
153 | (VOID **) &PrivateData\r | |
154 | ); \r | |
155 | if (EFI_ERROR (Status)) {\r | |
156 | return Status; \r | |
157 | }\r | |
158 | \r | |
159 | ASSERT (PrivateData->Signature == TREE_CONFIG_PRIVATE_DATA_SIGNATURE);\r | |
160 | \r | |
161 | gBS->UninstallMultipleProtocolInterfaces (\r | |
162 | &ImageHandle,\r | |
163 | &gEfiCallerIdGuid,\r | |
164 | PrivateData,\r | |
165 | NULL\r | |
166 | );\r | |
167 | \r | |
168 | UninstallTrEEConfigForm (PrivateData);\r | |
169 | \r | |
170 | return EFI_SUCCESS;\r | |
171 | }\r |