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Move SecExtractGuidedSectionLib instance from OvmfPkg to MdePkg
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10458 6f19259b-4bc3-4df7-8a09-765794883524
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/** @file
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Provide generic extract guided section functions for SEC phase.
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Copyright (c) 2007 - 2009, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this 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,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <PiPei.h>
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#include <Library/DebugLib.h>
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#include <Library/PcdLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/ExtractGuidedSectionLib.h>
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#define EXTRACT_HANDLER_INFO_SIGNATURE SIGNATURE_32 ('E', 'G', 'S', 'I')
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typedef struct {
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UINT32 Signature;
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UINT32 NumberOfExtractHandler;
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GUID *ExtractHandlerGuidTable;
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EXTRACT_GUIDED_SECTION_DECODE_HANDLER *ExtractDecodeHandlerTable;
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EXTRACT_GUIDED_SECTION_GET_INFO_HANDLER *ExtractGetInfoHandlerTable;
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} EXTRACT_GUIDED_SECTION_HANDLER_INFO;
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STATIC EXTRACT_GUIDED_SECTION_HANDLER_INFO mHandlerInfo = {
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0, // Signature;
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};
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/**
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Check if the info structure can be used. If it can be used, but it
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is not currently initialized, then it will be initialized.
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@param[in] Info Pointer to handler info structure.
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@retval RETURN_SUCCESS The info structure is initialized
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@retval EFI_WRITE_PROTECTED The info structure could not be written to.
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**/
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STATIC
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RETURN_STATUS
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CheckOrInitializeHandlerInfo (
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IN volatile EXTRACT_GUIDED_SECTION_HANDLER_INFO *Info
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)
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{
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//
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// First try access the handler info structure as a global variable
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//
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if (Info->Signature == EXTRACT_HANDLER_INFO_SIGNATURE) {
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//
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// The global variable version of the handler info has been initialized
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//
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return EFI_SUCCESS;
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}
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//
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// Try to initialize the handler info structure
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//
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Info->Signature = EXTRACT_HANDLER_INFO_SIGNATURE;
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if (Info->Signature != EXTRACT_HANDLER_INFO_SIGNATURE) {
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//
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// The structure was not writeable
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//
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return EFI_WRITE_PROTECTED;
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}
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Info->NumberOfExtractHandler = 0;
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Info->ExtractHandlerGuidTable = (GUID*) (Info + 1);
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Info->ExtractDecodeHandlerTable =
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(EXTRACT_GUIDED_SECTION_DECODE_HANDLER*)
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&(Info->ExtractHandlerGuidTable [PcdGet32 (PcdMaximumGuidedExtractHandler)]);
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Info->ExtractGetInfoHandlerTable =
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(EXTRACT_GUIDED_SECTION_GET_INFO_HANDLER*)
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&(Info->ExtractDecodeHandlerTable [PcdGet32 (PcdMaximumGuidedExtractHandler)]);
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return EFI_SUCCESS;
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}
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/**
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Build guid hob for the global memory to store the registered guid and Handler list.
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If GuidHob exists, HandlerInfo will be directly got from Guid hob data.
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@param[in, out] InfoPointer Pointer to pei handler info structure.
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@retval RETURN_SUCCESS Build Guid hob for the global memory space to store guid and function tables.
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@retval RETURN_OUT_OF_RESOURCES No enough memory to allocated.
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**/
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RETURN_STATUS
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GetExtractGuidedSectionHandlerInfo (
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IN OUT EXTRACT_GUIDED_SECTION_HANDLER_INFO **InfoPointer
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)
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{
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STATIC EXTRACT_GUIDED_SECTION_HANDLER_INFO* PotentialInfoLocations[] = {
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//
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// This entry will work if the global variables in the module are
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// writeable.
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//
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&mHandlerInfo,
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//
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// This entry will work if the system memory is already initialized
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// and ready for use. (For example, in a virtual machine, the memory
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// will not require initialization.)
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//
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(EXTRACT_GUIDED_SECTION_HANDLER_INFO*)(VOID*)(UINTN) 0x1000,
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};
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UINTN Loop;
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for (Loop = 0;
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Loop < sizeof (PotentialInfoLocations) / sizeof (PotentialInfoLocations[0]);
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Loop ++
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) {
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//
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// First try access the handler info structure as a global variable
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//
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if (!EFI_ERROR (CheckOrInitializeHandlerInfo (PotentialInfoLocations[Loop]))) {
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//
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// The global variable version of the handler info has been initialized
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//
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*InfoPointer = PotentialInfoLocations[Loop];
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return EFI_SUCCESS;
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}
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}
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*InfoPointer = (EXTRACT_GUIDED_SECTION_HANDLER_INFO*) NULL;
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return RETURN_OUT_OF_RESOURCES;
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}
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/**
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Retrieve the list GUIDs that have been registered through ExtractGuidedSectionRegisterHandlers().
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Sets ExtractHandlerGuidTable so it points at a callee allocated array of registered GUIDs.
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The total number of GUIDs in the array are returned. Since the array of GUIDs is callee allocated
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and caller must treat this array of GUIDs as read-only data.
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If ExtractHandlerGuidTable is NULL, then ASSERT().
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@param[out] ExtractHandlerGuidTable A pointer to the array of GUIDs that have been registered through
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ExtractGuidedSectionRegisterHandlers().
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@return the number of the supported extract guided Handler.
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**/
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UINTN
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EFIAPI
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ExtractGuidedSectionGetGuidList (
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OUT GUID **ExtractHandlerGuidTable
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)
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{
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EFI_STATUS Status;
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EXTRACT_GUIDED_SECTION_HANDLER_INFO *HandlerInfo;
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ASSERT (ExtractHandlerGuidTable != NULL);
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//
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// Get all registered handler information
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//
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Status = GetExtractGuidedSectionHandlerInfo (&HandlerInfo);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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//
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// Get GuidTable and Table Number
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//
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*ExtractHandlerGuidTable = HandlerInfo->ExtractHandlerGuidTable;
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return HandlerInfo->NumberOfExtractHandler;
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}
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/**
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Registers handlers of type EXTRACT_GUIDED_SECTION_GET_INFO_HANDLER and EXTRACT_GUIDED_SECTION_DECODE_HANDLER
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for a specific GUID section type.
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Registers the handlers specified by GetInfoHandler and DecodeHandler with the GUID specified by SectionGuid.
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If the GUID value specified by SectionGuid has already been registered, then return RETURN_ALREADY_STARTED.
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If there are not enough resources available to register the handlers then RETURN_OUT_OF_RESOURCES is returned.
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If SectionGuid is NULL, then ASSERT().
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If GetInfoHandler is NULL, then ASSERT().
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If DecodeHandler is NULL, then ASSERT().
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@param[in] SectionGuid A pointer to the GUID associated with the the handlers
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of the GUIDed section type being registered.
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@param[in] GetInfoHandler Pointer to a function that examines a GUIDed section and returns the
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size of the decoded buffer and the size of an optional scratch buffer
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required to actually decode the data in a GUIDed section.
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@param[in] DecodeHandler Pointer to a function that decodes a GUIDed section into a caller
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allocated output buffer.
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@retval RETURN_SUCCESS The handlers were registered.
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@retval RETURN_OUT_OF_RESOURCES There are not enough resources available to register the handlers.
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**/
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RETURN_STATUS
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EFIAPI
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ExtractGuidedSectionRegisterHandlers (
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IN CONST GUID *SectionGuid,
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IN EXTRACT_GUIDED_SECTION_GET_INFO_HANDLER GetInfoHandler,
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IN EXTRACT_GUIDED_SECTION_DECODE_HANDLER DecodeHandler
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)
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{
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EFI_STATUS Status;
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UINT32 Index;
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EXTRACT_GUIDED_SECTION_HANDLER_INFO *HandlerInfo;
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//
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// Check input paramter
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//
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ASSERT (SectionGuid != NULL);
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ASSERT (GetInfoHandler != NULL);
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ASSERT (DecodeHandler != NULL);
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//
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// Get the registered handler information
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//
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Status = GetExtractGuidedSectionHandlerInfo (&HandlerInfo);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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//
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// Search the match registered GetInfo handler for the input guided section.
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//
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for (Index = 0; Index < HandlerInfo->NumberOfExtractHandler; Index ++) {
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if (CompareGuid (HandlerInfo->ExtractHandlerGuidTable + Index, SectionGuid)) {
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//
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// If the guided handler has been registered before, only update its handler.
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//
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HandlerInfo->ExtractDecodeHandlerTable [Index] = DecodeHandler;
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HandlerInfo->ExtractGetInfoHandlerTable [Index] = GetInfoHandler;
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return RETURN_SUCCESS;
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}
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}
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//
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// Check the global table is enough to contain new Handler.
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//
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if (HandlerInfo->NumberOfExtractHandler >= PcdGet32 (PcdMaximumGuidedExtractHandler)) {
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return RETURN_OUT_OF_RESOURCES;
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}
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//
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// Register new Handler and guid value.
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//
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CopyGuid (HandlerInfo->ExtractHandlerGuidTable + HandlerInfo->NumberOfExtractHandler, SectionGuid);
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HandlerInfo->ExtractDecodeHandlerTable [HandlerInfo->NumberOfExtractHandler] = DecodeHandler;
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HandlerInfo->ExtractGetInfoHandlerTable [HandlerInfo->NumberOfExtractHandler++] = GetInfoHandler;
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return RETURN_SUCCESS;
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}
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/**
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Retrieves a GUID from a GUIDed section and uses that GUID to select an associated handler of type
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EXTRACT_GUIDED_SECTION_GET_INFO_HANDLER that was registered with ExtractGuidedSectionRegisterHandlers().
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The selected handler is used to retrieve and return the size of the decoded buffer and the size of an
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optional scratch buffer required to actually decode the data in a GUIDed section.
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Examines a GUIDed section specified by InputSection.
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If GUID for InputSection does not match any of the GUIDs registered through ExtractGuidedSectionRegisterHandlers(),
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then RETURN_UNSUPPORTED is returned.
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If the GUID of InputSection does match the GUID that this handler supports, then the the associated handler
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of type EXTRACT_GUIDED_SECTION_GET_INFO_HANDLER that was registered with ExtractGuidedSectionRegisterHandlers()
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is used to retrieve the OututBufferSize, ScratchSize, and Attributes values. The return status from the handler of
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type EXTRACT_GUIDED_SECTION_GET_INFO_HANDLER is returned.
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If InputSection is NULL, then ASSERT().
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If OutputBufferSize is NULL, then ASSERT().
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If ScratchBufferSize is NULL, then ASSERT().
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If SectionAttribute is NULL, then ASSERT().
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@param[in] InputSection A pointer to a GUIDed section of an FFS formatted file.
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@param[out] OutputBufferSize A pointer to the size, in bytes, of an output buffer required if the buffer
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specified by InputSection were decoded.
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@param[out] ScratchBufferSize A pointer to the size, in bytes, required as scratch space if the buffer specified by
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InputSection were decoded.
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@param[out] SectionAttribute A pointer to the attributes of the GUIDed section. See the Attributes field of
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EFI_GUID_DEFINED_SECTION in the PI Specification.
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@retval RETURN_SUCCESS Get the required information successfully.
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@retval RETURN_UNSUPPORTED The GUID from the section specified by InputSection does not match any of
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the GUIDs registered with ExtractGuidedSectionRegisterHandlers().
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@retval Others The return status from the handler associated with the GUID retrieved from
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the section specified by InputSection.
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**/
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RETURN_STATUS
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EFIAPI
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ExtractGuidedSectionGetInfo (
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IN CONST VOID *InputSection,
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OUT UINT32 *OutputBufferSize,
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OUT UINT32 *ScratchBufferSize,
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OUT UINT16 *SectionAttribute
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)
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{
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UINT32 Index;
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EFI_STATUS Status;
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EXTRACT_GUIDED_SECTION_HANDLER_INFO *HandlerInfo;
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//
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// Check input paramter
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//
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ASSERT (InputSection != NULL);
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ASSERT (OutputBufferSize != NULL);
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ASSERT (ScratchBufferSize != NULL);
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ASSERT (SectionAttribute != NULL);
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//
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// Get all registered handler information.
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//
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Status = GetExtractGuidedSectionHandlerInfo (&HandlerInfo);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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//
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// Search the match registered GetInfo handler for the input guided section.
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//
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for (Index = 0; Index < HandlerInfo->NumberOfExtractHandler; Index ++) {
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if (CompareGuid (HandlerInfo->ExtractHandlerGuidTable + Index, &(((EFI_GUID_DEFINED_SECTION *) InputSection)->SectionDefinitionGuid))) {
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//
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// Call the match handler to get info for the input section data.
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//
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return HandlerInfo->ExtractGetInfoHandlerTable [Index] (
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InputSection,
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OutputBufferSize,
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ScratchBufferSize,
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SectionAttribute
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);
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}
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}
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//
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// Not found, the input guided section is not supported.
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//
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return RETURN_UNSUPPORTED;
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}
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/**
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Retrieves the GUID from a GUIDed section and uses that GUID to select an associated handler of type
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EXTRACT_GUIDED_SECTION_DECODE_HANDLER that was registered with ExtractGuidedSectionRegisterHandlers().
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The selected handler is used to decode the data in a GUIDed section and return the result in a caller
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allocated output buffer.
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Decodes the GUIDed section specified by InputSection.
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If GUID for InputSection does not match any of the GUIDs registered through ExtractGuidedSectionRegisterHandlers(),
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then RETURN_UNSUPPORTED is returned.
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If the GUID of InputSection does match the GUID that this handler supports, then the the associated handler
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of type EXTRACT_GUIDED_SECTION_DECODE_HANDLER that was registered with ExtractGuidedSectionRegisterHandlers()
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is used to decode InputSection into the buffer specified by OutputBuffer and the authentication status of this
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decode operation is returned in AuthenticationStatus. If the decoded buffer is identical to the data in InputSection,
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then OutputBuffer is set to point at the data in InputSection. Otherwise, the decoded data will be placed in caller
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allocated buffer specified by OutputBuffer. This function is responsible for computing the EFI_AUTH_STATUS_PLATFORM_OVERRIDE
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bit of in AuthenticationStatus. The return status from the handler of type EXTRACT_GUIDED_SECTION_DECODE_HANDLER is returned.
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If InputSection is NULL, then ASSERT().
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If OutputBuffer is NULL, then ASSERT().
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If ScratchBuffer is NULL and this decode operation requires a scratch buffer, then ASSERT().
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If AuthenticationStatus is NULL, then ASSERT().
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@param[in] InputSection A pointer to a GUIDed section of an FFS formatted file.
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@param[out] OutputBuffer A pointer to a buffer that contains the result of a decode operation.
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@param[in] ScratchBuffer A caller allocated buffer that may be required by this function as a scratch buffer to perform the decode operation.
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@param[out] AuthenticationStatus
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A pointer to the authentication status of the decoded output buffer. See the definition
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|
||||||
of authentication status in the EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI section of the PI
|
|
||||||
Specification.
|
|
||||||
|
|
||||||
@retval RETURN_SUCCESS The buffer specified by InputSection was decoded.
|
|
||||||
@retval RETURN_UNSUPPORTED The section specified by InputSection does not match the GUID this handler supports.
|
|
||||||
@retval RETURN_INVALID_PARAMETER The section specified by InputSection can not be decoded.
|
|
||||||
|
|
||||||
**/
|
|
||||||
RETURN_STATUS
|
|
||||||
EFIAPI
|
|
||||||
ExtractGuidedSectionDecode (
|
|
||||||
IN CONST VOID *InputSection,
|
|
||||||
OUT VOID **OutputBuffer,
|
|
||||||
IN VOID *ScratchBuffer, OPTIONAL
|
|
||||||
OUT UINT32 *AuthenticationStatus
|
|
||||||
)
|
|
||||||
{
|
|
||||||
UINT32 Index;
|
|
||||||
EFI_STATUS Status;
|
|
||||||
EXTRACT_GUIDED_SECTION_HANDLER_INFO *HandlerInfo;
|
|
||||||
|
|
||||||
//
|
|
||||||
// Check input parameter
|
|
||||||
//
|
|
||||||
ASSERT (InputSection != NULL);
|
|
||||||
ASSERT (OutputBuffer != NULL);
|
|
||||||
ASSERT (AuthenticationStatus != NULL);
|
|
||||||
|
|
||||||
//
|
|
||||||
// Get all registered handler information.
|
|
||||||
//
|
|
||||||
Status = GetExtractGuidedSectionHandlerInfo (&HandlerInfo);
|
|
||||||
if (EFI_ERROR (Status)) {
|
|
||||||
return Status;
|
|
||||||
}
|
|
||||||
|
|
||||||
//
|
|
||||||
// Search the match registered Extract handler for the input guided section.
|
|
||||||
//
|
|
||||||
for (Index = 0; Index < HandlerInfo->NumberOfExtractHandler; Index ++) {
|
|
||||||
if (CompareGuid (HandlerInfo->ExtractHandlerGuidTable + Index, &(((EFI_GUID_DEFINED_SECTION *) InputSection)->SectionDefinitionGuid))) {
|
|
||||||
//
|
|
||||||
// Call the match handler to extract raw data for the input guided section.
|
|
||||||
//
|
|
||||||
return HandlerInfo->ExtractDecodeHandlerTable [Index] (
|
|
||||||
InputSection,
|
|
||||||
OutputBuffer,
|
|
||||||
ScratchBuffer,
|
|
||||||
AuthenticationStatus
|
|
||||||
);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
//
|
|
||||||
// Not found, the input guided section is not supported.
|
|
||||||
//
|
|
||||||
return RETURN_UNSUPPORTED;
|
|
||||||
}
|
|
||||||
@ -1,41 +0,0 @@
|
|||||||
## @file
|
|
||||||
# Instance of ExtractGuidedSection Library for SEC phase.
|
|
||||||
#
|
|
||||||
# Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
|
|
||||||
#
|
|
||||||
# This program and the accompanying materials
|
|
||||||
# are licensed and made available under the terms and conditions of the BSD License
|
|
||||||
# which accompanies this distribution. The full text of the license may be found at
|
|
||||||
# http://opensource.org/licenses/bsd-license.php
|
|
||||||
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
||||||
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
||||||
#
|
|
||||||
##
|
|
||||||
|
|
||||||
[Defines]
|
|
||||||
INF_VERSION = 0x00010005
|
|
||||||
BASE_NAME = SecExtractGuidedSectionLib
|
|
||||||
FILE_GUID = 4e3236e9-d1c8-4c04-a89f-26f1c44b2592
|
|
||||||
MODULE_TYPE = BASE
|
|
||||||
VERSION_STRING = 1.0
|
|
||||||
LIBRARY_CLASS = ExtractGuidedSectionLib
|
|
||||||
|
|
||||||
#
|
|
||||||
# The following information is for reference only and not required by the build tools.
|
|
||||||
#
|
|
||||||
# VALID_ARCHITECTURES = IA32 X64 IPF EBC (EBC is for build only)
|
|
||||||
#
|
|
||||||
|
|
||||||
[Sources]
|
|
||||||
SecExtractGuidedSectionLib.c
|
|
||||||
|
|
||||||
[Packages]
|
|
||||||
MdePkg/MdePkg.dec
|
|
||||||
|
|
||||||
[LibraryClasses]
|
|
||||||
BaseMemoryLib
|
|
||||||
DebugLib
|
|
||||||
PcdLib
|
|
||||||
|
|
||||||
[Pcd]
|
|
||||||
gEfiMdePkgTokenSpaceGuid.PcdMaximumGuidedExtractHandler ## CONSUMES
|
|
||||||
@ -87,7 +87,7 @@
|
|||||||
[LibraryClasses.common.SEC]
|
[LibraryClasses.common.SEC]
|
||||||
DebugLib|MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf
|
DebugLib|MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf
|
||||||
ReportStatusCodeLib|MdeModulePkg/Library/PeiReportStatusCodeLib/PeiReportStatusCodeLib.inf
|
ReportStatusCodeLib|MdeModulePkg/Library/PeiReportStatusCodeLib/PeiReportStatusCodeLib.inf
|
||||||
ExtractGuidedSectionLib|OvmfPkg/Library/SecExtractGuidedSectionLib/SecExtractGuidedSectionLib.inf
|
ExtractGuidedSectionLib|MdePkg/Library/BaseExtractGuidedSectionLib/BaseExtractGuidedSectionLib.inf
|
||||||
|
|
||||||
[LibraryClasses.common.PEI_CORE]
|
[LibraryClasses.common.PEI_CORE]
|
||||||
BaseMemoryLib|MdePkg/Library/BaseMemoryLibOptPei/BaseMemoryLibOptPei.inf
|
BaseMemoryLib|MdePkg/Library/BaseMemoryLibOptPei/BaseMemoryLibOptPei.inf
|
||||||
|
|||||||
@ -88,7 +88,7 @@
|
|||||||
BaseMemoryLib|MdePkg/Library/BaseMemoryLibSse2/BaseMemoryLibSse2.inf
|
BaseMemoryLib|MdePkg/Library/BaseMemoryLibSse2/BaseMemoryLibSse2.inf
|
||||||
DebugLib|MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf
|
DebugLib|MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf
|
||||||
ReportStatusCodeLib|MdeModulePkg/Library/PeiReportStatusCodeLib/PeiReportStatusCodeLib.inf
|
ReportStatusCodeLib|MdeModulePkg/Library/PeiReportStatusCodeLib/PeiReportStatusCodeLib.inf
|
||||||
ExtractGuidedSectionLib|OvmfPkg/Library/SecExtractGuidedSectionLib/SecExtractGuidedSectionLib.inf
|
ExtractGuidedSectionLib|MdePkg/Library/BaseExtractGuidedSectionLib/BaseExtractGuidedSectionLib.inf
|
||||||
|
|
||||||
[LibraryClasses.common.PEI_CORE]
|
[LibraryClasses.common.PEI_CORE]
|
||||||
BaseMemoryLib|MdePkg/Library/BaseMemoryLibOptPei/BaseMemoryLibOptPei.inf
|
BaseMemoryLib|MdePkg/Library/BaseMemoryLibOptPei/BaseMemoryLibOptPei.inf
|
||||||
|
|||||||
@ -88,7 +88,7 @@
|
|||||||
BaseMemoryLib|MdePkg/Library/BaseMemoryLibSse2/BaseMemoryLibSse2.inf
|
BaseMemoryLib|MdePkg/Library/BaseMemoryLibSse2/BaseMemoryLibSse2.inf
|
||||||
DebugLib|MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf
|
DebugLib|MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf
|
||||||
ReportStatusCodeLib|MdeModulePkg/Library/PeiReportStatusCodeLib/PeiReportStatusCodeLib.inf
|
ReportStatusCodeLib|MdeModulePkg/Library/PeiReportStatusCodeLib/PeiReportStatusCodeLib.inf
|
||||||
ExtractGuidedSectionLib|OvmfPkg/Library/SecExtractGuidedSectionLib/SecExtractGuidedSectionLib.inf
|
ExtractGuidedSectionLib|MdePkg/Library/BaseExtractGuidedSectionLib/BaseExtractGuidedSectionLib.inf
|
||||||
|
|
||||||
[LibraryClasses.common.PEI_CORE]
|
[LibraryClasses.common.PEI_CORE]
|
||||||
BaseMemoryLib|MdePkg/Library/BaseMemoryLibOptPei/BaseMemoryLibOptPei.inf
|
BaseMemoryLib|MdePkg/Library/BaseMemoryLibOptPei/BaseMemoryLibOptPei.inf
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user