Split Ebc from x64 implementation since x64 version supports to create x64 mode page tables in memory.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6618 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf

@@ -45,7 +45,7 @@
   Ia32/IdtVectorAsm.asm
   Ia32/IdtVectorAsm.S | GCC
 
-[Sources.X64, Sources.EBC]
+[Sources.X64]
   X64/VirtualMemory.h
   X64/VirtualMemory.c
   X64/DxeLoadFunc.c
@@ -55,6 +55,10 @@
   Ipf/DxeLoadFunc.c
   Ipf/ImageRead.c
 
+[Sources.EBC]
+  Ebc/DxeLoadFunc.c
+  Ia32/ImageRead.c
+
 [Packages]
   MdePkg/MdePkg.dec
   MdeModulePkg/MdeModulePkg.dec

MdeModulePkg/Core/DxeIplPeim/Ebc/DxeLoadFunc.c

@@ -0,0 +1,73 @@
+/** @file
+  x64-specifc functionality for DxeLoad.
+
+Copyright (c) 2006 - 2008, Intel Corporation. <BR>
+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.
+
+**/
+
+#include "DxeIpl.h"
+
+
+
+/**
+   Transfers control to DxeCore.
+
+   This function performs a CPU architecture specific operations to execute
+   the entry point of DxeCore with the parameters of HobList.
+   It also intalls EFI_END_OF_PEI_PPI to signal the end of PEI phase.
+
+   @param DxeCoreEntryPoint         The entrypoint of DxeCore.
+   @param HobList                   The start of HobList passed to DxeCore.
+
+**/
+VOID
+HandOffToDxeCore (
+  IN EFI_PHYSICAL_ADDRESS   DxeCoreEntryPoint,
+  IN EFI_PEI_HOB_POINTERS   HobList
+  )
+{
+  VOID                *BaseOfStack;
+  VOID                *TopOfStack;
+  EFI_STATUS          Status;
+
+  //
+  // Allocate 128KB for the Stack
+  //
+  BaseOfStack = AllocatePages (EFI_SIZE_TO_PAGES (STACK_SIZE));
+  ASSERT (BaseOfStack != NULL);
+
+  //
+  // Compute the top of the stack we were allocated. Pre-allocate a UINTN
+  // for safety.
+  //
+  TopOfStack = (VOID *) ((UINTN) BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - CPU_STACK_ALIGNMENT);
+  TopOfStack = ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT);
+
+  //
+  // End of PEI phase singal
+  //
+  Status = PeiServicesInstallPpi (&gEndOfPeiSignalPpi);
+  ASSERT_EFI_ERROR (Status);
+
+  //
+  // Update the contents of BSP stack HOB to reflect the real stack info passed to DxeCore.
+  //    
+  UpdateStackHob ((EFI_PHYSICAL_ADDRESS)(UINTN) BaseOfStack, STACK_SIZE);
+
+  //
+  // Transfer the control to the entry point of DxeCore.
+  //
+  SwitchStack (
+    (SWITCH_STACK_ENTRY_POINT)(UINTN)DxeCoreEntryPoint,
+    HobList.Raw,
+    NULL,
+    TopOfStack
+    );
+}