/** @file\r
PEI Services Table Pointer Library.\r
+ \r
+ This library is used for PEIM which does executed from flash device directly but\r
+ executed in memory.\r
\r
- Copyright (c) 2006, Intel Corporation<BR>\r
- All rights reserved. This program and the accompanying materials\r
+ Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r
+ This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
- http://opensource.org/licenses/bsd-license.php\r
+ http://opensource.org/licenses/bsd-license.php.\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
#include <Library/PeiServicesTablePointerLib.h>\r
#include <Library/DebugLib.h>\r
\r
-#include "PeiServicesTablePointerInternal.h"\r
-\r
-STATIC EFI_PEI_SERVICES **gPeiServices;\r
+CONST EFI_PEI_SERVICES **gPeiServices;\r
\r
/**\r
- The function set the pointer of PEI services immediately preceding the IDT table\r
- according to PI specification.\r
+ Caches a pointer PEI Services Table. \r
+ \r
+ Caches the pointer to the PEI Services Table specified by PeiServicesTablePointer \r
+ in a CPU specific manner as specified in the CPU binding section of the Platform Initialization \r
+ Pre-EFI Initialization Core Interface Specification. \r
+ \r
+ If PeiServicesTablePointer is NULL, then ASSERT().\r
\r
- @param PeiServices The address of PeiServices pointer.\r
+ @param PeiServicesTablePointer The address of PeiServices pointer.\r
**/\r
VOID\r
EFIAPI\r
SetPeiServicesTablePointer (\r
- EFI_PEI_SERVICES **PeiServices\r
+ IN CONST EFI_PEI_SERVICES ** PeiServicesTablePointer\r
)\r
{\r
- gPeiServices = PeiServices;\r
+ ASSERT (PeiServicesTablePointer != NULL);\r
+ gPeiServices = PeiServicesTablePointer;\r
}\r
\r
/**\r
- The function returns the pointer to PEI services.\r
+ Retrieves the cached value of the PEI Services Table pointer.\r
\r
- The function returns the pointer to PEI services.\r
- It will ASSERT() if the pointer to PEI services is NULL.\r
+ Returns the cached value of the PEI Services Table pointer in a CPU specific manner \r
+ as specified in the CPU binding section of the Platform Initialization Pre-EFI \r
+ Initialization Core Interface Specification.\r
+ \r
+ If the cached PEI Services Table pointer is NULL, then ASSERT().\r
\r
- @retval The pointer to PeiServices.\r
+ @return The pointer to PeiServices.\r
\r
**/\r
-EFI_PEI_SERVICES **\r
+CONST EFI_PEI_SERVICES **\r
+EFIAPI\r
GetPeiServicesTablePointer (\r
VOID\r
)\r
It will always return EFI_SUCCESS.\r
\r
@param FileHandle Handle of FFS header the loaded driver.\r
- @param PeiServices Pointer to the PEI services.\r
+ @param PeiServices The pointer to the PEI services.\r
\r
@retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.\r
\r
EFI_STATUS\r
EFIAPI\r
PeiServicesTablePointerLibConstructor (\r
- IN EFI_PEI_FILE_HANDLE FileHandle,\r
- IN EFI_PEI_SERVICES **PeiServices\r
+ IN EFI_PEI_FILE_HANDLE FileHandle,\r
+ IN CONST EFI_PEI_SERVICES **PeiServices\r
)\r
{\r
gPeiServices = PeiServices;\r