Enable Nt32 platform boot to DXE phase.

[mirror_edk2.git] / MdeModulePkg / Core / DxeIplPeim / X64 / DxeLoadFunc.c

/*++\r
\r
Copyright (c) 2006, Intel Corporation\r
All rights reserved. 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
\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
\r
Module Name:\r
\r
  DxeLoadFunc.c\r
\r
Abstract:\r
\r
  Ia32-specifc functionality for DxeLoad.\r
\r
--*/\r
\r
//\r
// Include common header file for this module.\r
//\r
#include "CommonHeader.h"\r
\r
#include "DxeIpl.h"\r
\r
VOID\r
HandOffToDxeCore (\r
  IN EFI_PHYSICAL_ADDRESS   DxeCoreEntryPoint,\r
  IN EFI_PEI_HOB_POINTERS   HobList,\r
  IN EFI_PEI_PPI_DESCRIPTOR *EndOfPeiSignal\r
  )\r
{\r
  VOID                *BaseOfStack;\r
  VOID                *TopOfStack;\r
  EFI_STATUS          Status;\r
\r
  //\r
  // Allocate 128KB for the Stack\r
  //\r
  BaseOfStack = AllocatePages (EFI_SIZE_TO_PAGES (STACK_SIZE));\r
  ASSERT (BaseOfStack != NULL);\r
\r
  //\r
  // Compute the top of the stack we were allocated. Pre-allocate a UINTN\r
  // for safety.\r
  //\r
  TopOfStack = (VOID *) ((UINTN) BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - CPU_STACK_ALIGNMENT);\r
  TopOfStack = ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT);\r
\r
  //\r
  // End of PEI phase singal\r
  //\r
  Status = PeiServicesInstallPpi (EndOfPeiSignal);\r
  ASSERT_EFI_ERROR (Status);\r
\r
  SwitchStack (\r
    (SWITCH_STACK_ENTRY_POINT)(UINTN)DxeCoreEntryPoint,\r
    HobList.Raw,\r
    NULL,\r
    TopOfStack\r
    );\r
}\r