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7ab26d51 LE |
1 | /** @file\r |
2 | A hook-in library for:\r | |
3 | - MdeModulePkg/Universal/Variable/Pei/VariablePei.inf\r | |
4 | - MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf\r | |
5 | - MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.inf\r | |
6 | \r | |
7 | Plugging this library instance into one of the above modules makes that\r | |
8 | variable service backend wait for another platform module to dynamically\r | |
9 | initialize or verify EFI_FIRMWARE_VOLUME_HEADER and VARIABLE_STORE_HEADER in\r | |
10 | the non-volatile variable store FVB device. The initialization / verification\r | |
11 | is signaled by installing gEdkiiNvVarStoreFormattedGuid into the\r | |
12 | phase-matching PPI or protocol database, with a NULL interface. (Note that\r | |
13 | installing gEdkiiNvVarStoreFormattedGuid into either the DXE or the MM\r | |
14 | protocol database will unblock VariableSmm -- refer to EFI_SECTION_MM_DEPEX\r | |
15 | in the PI spec.)\r | |
16 | \r | |
17 | Copyright (C) 2018, Red Hat, Inc.\r | |
18 | \r | |
19 | This program and the accompanying materials are licensed and made available\r | |
20 | under the terms and conditions of the BSD License which accompanies this\r | |
21 | distribution. The full text of the license may be found at\r | |
22 | http://opensource.org/licenses/bsd-license.php\r | |
23 | \r | |
24 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT\r | |
25 | WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
26 | **/\r | |
27 | \r | |
28 | #include <Base.h>\r | |
29 | \r | |
30 | RETURN_STATUS\r | |
31 | EFIAPI\r | |
32 | NvVarStoreFormattedInitialize (\r | |
33 | VOID\r | |
34 | )\r | |
35 | {\r | |
36 | //\r | |
37 | // Do nothing, just imbue VariablePei / VariableRuntimeDxe / VariableSmm with\r | |
38 | // a PPI or protocol dependency on EDKII_NV_VAR_STORE_FORMATTED_GUID.\r | |
39 | //\r | |
40 | return RETURN_SUCCESS;\r | |
41 | }\r |