mirror of https://github.com/acidanthera/audk.git
71 lines
2.0 KiB
C
Executable File
71 lines
2.0 KiB
C
Executable File
/** @file
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PEI Services Table Pointer Library.
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This library is used for PEIM which does executed from flash device directly but
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executed in memory.
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Copyright (c) 2006 - 2010, 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/PeiServicesTablePointerLib.h>
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#include <Library/DebugLib.h>
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#include <Library/PcdLib.h>
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/**
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Caches a pointer PEI Services Table.
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Caches the pointer to the PEI Services Table specified by PeiServicesTablePointer
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in a platform specific manner.
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If PeiServicesTablePointer is NULL, then ASSERT().
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@param PeiServicesTablePointer The address of PeiServices pointer.
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**/
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VOID
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EFIAPI
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SetPeiServicesTablePointer (
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IN CONST EFI_PEI_SERVICES ** PeiServicesTablePointer
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)
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{
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UINTN *PeiPtrLoc;
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ASSERT (PeiServicesTablePointer != NULL);
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PeiPtrLoc = (UINTN *)(UINTN)PcdGet32(PcdPeiServicePtrAddr);
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*PeiPtrLoc = (UINTN)PeiServicesTablePointer;
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}
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/**
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Retrieves the cached value of the PEI Services Table pointer.
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Returns the cached value of the PEI Services Table pointer in a CPU specific manner
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as specified in the CPU binding section of the Platform Initialization Pre-EFI
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Initialization Core Interface Specification.
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If the cached PEI Services Table pointer is NULL, then ASSERT().
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@return The pointer to PeiServices.
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**/
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CONST EFI_PEI_SERVICES **
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EFIAPI
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GetPeiServicesTablePointer (
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VOID
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)
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{
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UINTN *PeiPtrLoc;
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PeiPtrLoc = (UINTN *)(UINTN)PcdGet32(PcdPeiServicePtrAddr);
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return (CONST EFI_PEI_SERVICES **)*PeiPtrLoc;
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}
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