Add in the 1st version of ECP.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2832 6f19259b-4bc3-4df7-8a09-765794883524

EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/Ipf/PeiServicePointer.c

@@ -0,0 +1,108 @@
+/*++
+
+Copyright 2007, Intel Corporation                                                         
+All rights reserved. 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.             
+
+
+Module Name:
+
+    PeiServicePointer.c
+
+Abstract:
+
+--*/
+
+#include "Tiano.h"
+#include "PeiApi.h"
+#include "PeiLib.h"
+
+
+#if (PI_SPECIFICATION_VERSION >= 0x00010000)
+
+VOID
+SetPeiServicesTablePointer (
+  IN EFI_PEI_SERVICES  **PeiServices
+  )
+/*++
+
+Routine Description:
+
+  Save PeiService pointer so that it can be retrieved anywhere.
+
+Arguments:
+
+  PeiServices     - The direct pointer to PeiServiceTable.
+  PhyscialAddress - The physcial address of variable PeiServices.
+  
+Returns:
+  NONE
+  
+--*/        
+  
+{
+  //
+  // For Itanium Processor Family processors, the EFI_PEI_SERVICES**
+  // is stored in kernel register7.
+  //
+  AsmWriteKr7((UINT64)(UINTN)PeiServices);
+}
+
+
+EFI_PEI_SERVICES **
+GetPeiServicesTablePointer (
+  VOID
+  )
+/*++
+
+Routine Description:
+
+  Get PeiService pointer.
+
+Arguments:
+
+  NONE.
+  
+Returns:
+  The direct pointer to PeiServiceTable.
+  
+--*/          
+  
+{
+  //
+  // For Itanium Processor Family processors, the EFI_PEI_SERVICES**
+  // is stored in kernel register7.
+  //
+  return (EFI_PEI_SERVICES **)(UINTN)AsmReadKr7();
+}
+
+VOID
+MigrateIdtTable (
+  IN EFI_PEI_SERVICES  **PeiServices
+  )
+/*++
+
+Routine Description:
+
+  Migrate IDT from CAR to real memory where preceded with 4 bytes for
+  storing PeiService pointer.
+
+Arguments:
+
+  PeiServices   - The direct pointer to PeiServiceTable.
+  
+Returns:
+
+  NONE.
+  
+--*/  
+{
+  return;
+}
+
+#endif