8fc38a3f50
This library hides where the 'XIP' Global Variable are located in the memory. It is expected the Sec/PrePi modules define the Global Variable area through the GlobalVariable HOB. The ArmPlatformGlobalVariableLib library allows access to global variables by their offsets in this region. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12420 6f19259b-4bc3-4df7-8a09-765794883524
71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
/** @file
|
|
PEI Services Table Pointer Library.
|
|
|
|
This library is used for PEIM which does executed from flash device directly but
|
|
executed in memory.
|
|
|
|
Copyright (c) 2006 - 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.
|
|
|
|
**/
|
|
|
|
#include <PiPei.h>
|
|
#include <Library/ArmPlatformGlobalVariableLib.h>
|
|
#include <Library/PeiServicesTablePointerLib.h>
|
|
#include <Library/DebugLib.h>
|
|
#include <Library/PcdLib.h>
|
|
|
|
/**
|
|
Caches a pointer PEI Services Table.
|
|
|
|
Caches the pointer to the PEI Services Table specified by PeiServicesTablePointer
|
|
in a platform specific manner.
|
|
|
|
If PeiServicesTablePointer is NULL, then ASSERT().
|
|
|
|
@param PeiServicesTablePointer The address of PeiServices pointer.
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
SetPeiServicesTablePointer (
|
|
IN CONST EFI_PEI_SERVICES **PeiServicesTablePointer
|
|
)
|
|
{
|
|
ASSERT (PeiServicesTablePointer != NULL);
|
|
|
|
ArmPlatformSetGlobalVariable (PcdGet32 (PcdPeiServicePtrGlobalOffset), sizeof(EFI_PEI_SERVICES **), &PeiServicesTablePointer);
|
|
}
|
|
|
|
/**
|
|
Retrieves the cached value of the PEI Services Table pointer.
|
|
|
|
Returns the cached value of the PEI Services Table pointer in a CPU specific manner
|
|
as specified in the CPU binding section of the Platform Initialization Pre-EFI
|
|
Initialization Core Interface Specification.
|
|
|
|
If the cached PEI Services Table pointer is NULL, then ASSERT().
|
|
|
|
@return The pointer to PeiServices.
|
|
|
|
**/
|
|
CONST EFI_PEI_SERVICES**
|
|
EFIAPI
|
|
GetPeiServicesTablePointer (
|
|
VOID
|
|
)
|
|
{
|
|
EFI_PEI_SERVICES **PeiServicesTablePointer;
|
|
|
|
ArmPlatformGetGlobalVariable (PcdGet32 (PcdPeiServicePtrGlobalOffset), sizeof(EFI_PEI_SERVICES **), &PeiServicesTablePointer);
|
|
|
|
return (CONST EFI_PEI_SERVICES**)PeiServicesTablePointer;
|
|
}
|
|
|
|
|