MdePkg/Library/PeiServicesTablePointerLibKr7/PeiServicesTablePointer.c

   1 /** @file
   2   PEI Services Table Pointer Library implementation for IPF that uses Kernel
   3   Register 7 to store the pointer.
   4
   5   Copyright (c) 2006 - 2007, Intel Corporation.<BR>
   6   All rights reserved. This program and the accompanying materials
   7   are licensed and made available under the terms and conditions of the BSD License
   8   which accompanies this distribution.  The full text of the license may be found at
   9   http://opensource.org/licenses/bsd-license.php
  10
  11   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13
  14 **/
  15
  16
  17 #include <Library/BaseLib.h>
  18
  19 /**
  20   The function returns the pointer to PeiServices.
  21
  22   The function returns the pointer to PeiServices.
  23   It will ASSERT() if the pointer to PeiServices is NULL.
  24
  25   @retval  The pointer to PeiServices.
  26
  27 **/
  28 EFI_PEI_SERVICES **
  29 EFIAPI
  30 GetPeiServicesTablePointer (
  31   VOID
  32   )
  33 {
  34   EFI_PEI_SERVICES  **PeiServices;
  35
  36   PeiServices = (EFI_PEI_SERVICES **)(UINTN)AsmReadKr7 ();
  37   ASSERT (PeiServices != NULL);
  38   return PeiServices;
  39 }
  40