mirror of https://github.com/acidanthera/audk.git
42 lines
1.6 KiB
C
42 lines
1.6 KiB
C
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/** @file
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A hook-in library for:
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- MdeModulePkg/Universal/Variable/Pei/VariablePei.inf
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- MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf
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- MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.inf
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Plugging this library instance into one of the above modules makes that
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variable service backend wait for another platform module to dynamically
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initialize or verify EFI_FIRMWARE_VOLUME_HEADER and VARIABLE_STORE_HEADER in
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the non-volatile variable store FVB device. The initialization / verification
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is signaled by installing gEdkiiNvVarStoreFormattedGuid into the
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phase-matching PPI or protocol database, with a NULL interface. (Note that
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installing gEdkiiNvVarStoreFormattedGuid into either the DXE or the MM
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protocol database will unblock VariableSmm -- refer to EFI_SECTION_MM_DEPEX
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in the PI spec.)
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Copyright (C) 2018, Red Hat, Inc.
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This program and the accompanying materials are licensed and made available
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under the terms and conditions of the BSD License which accompanies this
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distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
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WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Base.h>
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RETURN_STATUS
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EFIAPI
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NvVarStoreFormattedInitialize (
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VOID
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)
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{
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//
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// Do nothing, just imbue VariablePei / VariableRuntimeDxe / VariableSmm with
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// a PPI or protocol dependency on EDKII_NV_VAR_STORE_FORMATTED_GUID.
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//
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return RETURN_SUCCESS;
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}
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