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1 | /*++\r | |
2 | \r | |
3 | Copyright (c) 2006, Intel Corporation \r | |
4 | All rights reserved. This program and the accompanying materials \r | |
5 | are licensed and made available under the terms and conditions of the BSD License \r | |
6 | which accompanies this distribution. The full text of the license may be found at \r | |
7 | http://opensource.org/licenses/bsd-license.php \r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
11 | \r | |
12 | Module Name:\r | |
13 | \r | |
14 | InitVariable.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | Revision History\r | |
19 | \r | |
20 | --*/\r | |
21 | \r | |
22 | #include "Variable.h"\r | |
23 | \r | |
24 | //\r | |
25 | // Don't use module globals after the SetVirtualAddress map is signaled\r | |
26 | //\r | |
27 | extern ESAL_VARIABLE_GLOBAL *mVariableModuleGlobal;\r | |
28 | \r | |
29 | EFI_STATUS\r | |
30 | EFIAPI\r | |
31 | RuntimeServiceGetVariable (\r | |
32 | IN CHAR16 *VariableName,\r | |
33 | IN EFI_GUID * VendorGuid,\r | |
34 | OUT UINT32 *Attributes OPTIONAL,\r | |
35 | IN OUT UINTN *DataSize,\r | |
36 | OUT VOID *Data\r | |
37 | )\r | |
38 | /*++\r | |
39 | \r | |
40 | Routine Description:\r | |
41 | \r | |
42 | Arguments:\r | |
43 | \r | |
44 | Returns:\r | |
45 | \r | |
46 | --*/\r | |
47 | {\r | |
48 | return GetVariable (\r | |
49 | VariableName,\r | |
50 | VendorGuid,\r | |
51 | Attributes OPTIONAL,\r | |
52 | DataSize,\r | |
53 | Data,\r | |
54 | &mVariableModuleGlobal->VariableBase[Physical],\r | |
55 | mVariableModuleGlobal->FvbInstance\r | |
56 | );\r | |
57 | }\r | |
58 | \r | |
59 | EFI_STATUS\r | |
60 | EFIAPI\r | |
61 | RuntimeServiceGetNextVariableName (\r | |
62 | IN OUT UINTN *VariableNameSize,\r | |
63 | IN OUT CHAR16 *VariableName,\r | |
64 | IN OUT EFI_GUID *VendorGuid\r | |
65 | )\r | |
66 | /*++\r | |
67 | \r | |
68 | Routine Description:\r | |
69 | \r | |
70 | Arguments:\r | |
71 | \r | |
72 | Returns:\r | |
73 | \r | |
74 | --*/\r | |
75 | {\r | |
76 | return GetNextVariableName (\r | |
77 | VariableNameSize,\r | |
78 | VariableName,\r | |
79 | VendorGuid,\r | |
80 | &mVariableModuleGlobal->VariableBase[Physical],\r | |
81 | mVariableModuleGlobal->FvbInstance\r | |
82 | );\r | |
83 | }\r | |
84 | \r | |
85 | EFI_STATUS\r | |
86 | EFIAPI\r | |
87 | RuntimeServiceSetVariable (\r | |
88 | IN CHAR16 *VariableName,\r | |
89 | IN EFI_GUID *VendorGuid,\r | |
90 | IN UINT32 Attributes,\r | |
91 | IN UINTN DataSize,\r | |
92 | IN VOID *Data\r | |
93 | )\r | |
94 | /*++\r | |
95 | \r | |
96 | Routine Description:\r | |
97 | \r | |
98 | Arguments:\r | |
99 | \r | |
100 | Returns:\r | |
101 | \r | |
102 | --*/\r | |
103 | {\r | |
104 | return SetVariable (\r | |
105 | VariableName,\r | |
106 | VendorGuid,\r | |
107 | Attributes,\r | |
108 | DataSize,\r | |
109 | Data,\r | |
110 | &mVariableModuleGlobal->VariableBase[Physical],\r | |
111 | &mVariableModuleGlobal->VolatileLastVariableOffset,\r | |
112 | &mVariableModuleGlobal->NonVolatileLastVariableOffset,\r | |
113 | mVariableModuleGlobal->FvbInstance\r | |
114 | );\r | |
115 | }\r | |
116 | \r | |
117 | VOID\r | |
118 | EFIAPI\r | |
119 | VariableClassAddressChangeEvent (\r | |
120 | IN EFI_EVENT Event,\r | |
121 | IN VOID *Context\r | |
122 | )\r | |
123 | /*++\r | |
124 | \r | |
125 | Routine Description:\r | |
126 | \r | |
127 | Arguments:\r | |
128 | \r | |
129 | Returns:\r | |
130 | \r | |
131 | --*/\r | |
132 | {\r | |
133 | EfiConvertPointer (\r | |
134 | 0x0,\r | |
135 | (VOID **) &mVariableModuleGlobal->VariableBase[Physical].NonVolatileVariableBase\r | |
136 | );\r | |
137 | EfiConvertPointer (\r | |
138 | 0x0,\r | |
139 | (VOID **) &mVariableModuleGlobal->VariableBase[Physical].VolatileVariableBase\r | |
140 | );\r | |
141 | EfiConvertPointer (0x0, (VOID **) &mVariableModuleGlobal);\r | |
142 | }\r | |
143 | \r | |
144 | EFI_STATUS\r | |
145 | EFIAPI\r | |
146 | VariableServiceInitialize (\r | |
147 | IN EFI_HANDLE ImageHandle,\r | |
148 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
149 | )\r | |
150 | /*++\r | |
151 | \r | |
152 | Routine Description:\r | |
153 | \r | |
154 | Arguments:\r | |
155 | \r | |
156 | Returns:\r | |
157 | \r | |
158 | --*/\r | |
159 | {\r | |
160 | EFI_HANDLE NewHandle;\r | |
161 | EFI_STATUS Status;\r | |
162 | \r | |
163 | Status = VariableCommonInitialize (ImageHandle, SystemTable);\r | |
164 | ASSERT_EFI_ERROR (Status);\r | |
165 | \r | |
166 | SystemTable->RuntimeServices->GetVariable = RuntimeServiceGetVariable;\r | |
167 | SystemTable->RuntimeServices->GetNextVariableName = RuntimeServiceGetNextVariableName;\r | |
168 | SystemTable->RuntimeServices->SetVariable = RuntimeServiceSetVariable;\r | |
169 | \r | |
170 | //\r | |
171 | // Now install the Variable Runtime Architectural Protocol on a new handle\r | |
172 | //\r | |
173 | NewHandle = NULL;\r | |
174 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
175 | &NewHandle,\r | |
176 | &gEfiVariableArchProtocolGuid,\r | |
177 | NULL,\r | |
178 | &gEfiVariableWriteArchProtocolGuid,\r | |
179 | NULL,\r | |
180 | NULL\r | |
181 | );\r | |
182 | ASSERT_EFI_ERROR (Status);\r | |
183 | \r | |
184 | return EFI_SUCCESS;\r | |
185 | }\r |