MdePkg/Library/PeiServicesTablePointerLibIdt/PeiServicesTablePointer.c

   1 /*++
   2
   3 Copyright (c) 2006 Intel Corporation. All rights reserved
   4 This software and associated documentation (if any) is furnished
   5 under a license and may only be used or copied in accordance
   6 with the terms of the license. Except as permitted by such
   7 license, no part of this software or documentation may be
   8 reproduced, stored in a retrieval system, or transmitted in any
   9 form or by any means without the express written consent of
  10 Intel Corporation.
  11
  12   PEI Services Table Pointer Library.
  13
  14 --*/
  15
  16 #include "InternalPeiServicesTablePointer.h"
  17
  18 /**
  19
  20   The function returns the pointer to PeiServicee following
  21   PI1.0.
  22
  23   For IA32, the four-bytes field immediately prior to new IDT
  24   base addres is used to save the EFI_PEI_SERVICES**.
  25   For x64, the eight-bytes field immediately prior to new IDT
  26   base addres is used to save the EFI_PEI_SERVICES**.
  27
  28   @retval  The pointer to PeiServices.
  29
  30 **/
  31 EFI_PEI_SERVICES **
  32 EFIAPI
  33 GetPeiServicesTablePointer (
  34   VOID
  35   )
  36 {
  37   EFI_PEI_SERVICES  **PeiServices;
  38
  39   PeiServices = (EFI_PEI_SERVICES **) AsmPeiSevicesTablePointer ();
  40   ASSERT (PeiServices != NULL);
  41   return PeiServices;
  42 }
  43