IntelFspWrapperPkg/FspInitPei/SecFspInitDone.c

   1 /** @file
   2   Install FspInitDone PPI and GetFspHobList API.
   3
   4   Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
   5   This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php.
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15
  16 #include "SecMain.h"
  17
  18 FSP_INIT_DONE_PPI gFspInitDonePpi = {
  19   FspInitDoneGetFspHobList
  20 };
  21
  22 /**
  23   Return Hob list produced by FSP.
  24
  25   @param[in]  PeiServices  The pointer to the PEI Services Table.
  26   @param[in]  This         The pointer to this instance of this PPI.
  27   @param[out] FspHobList   The pointer to Hob list produced by FSP.
  28
  29   @return EFI_SUCCESS FReturn Hob list produced by FSP successfully.
  30 **/
  31 EFI_STATUS
  32 EFIAPI
  33 FspInitDoneGetFspHobList (
  34   IN  CONST EFI_PEI_SERVICES         **PeiServices,
  35   IN  FSP_INIT_DONE_PPI              *This,
  36   OUT VOID                           **FspHobList
  37   )
  38 {
  39   VOID        *TopOfTemporaryRamPpi;
  40   EFI_STATUS  Status;
  41
  42   Status = (*PeiServices)->LocatePpi (
  43                              PeiServices,
  44                              &gTopOfTemporaryRamPpiGuid,
  45                              0,
  46                              NULL,
  47                              (VOID **) &TopOfTemporaryRamPpi
  48                              );
  49   if (EFI_ERROR (Status)) {
  50     return EFI_NOT_FOUND;
  51   }
  52
  53   *FspHobList = (VOID *)(UINTN)(*(UINT32 *)((UINTN)TopOfTemporaryRamPpi - sizeof(UINT32)));
  54
  55   return EFI_SUCCESS;
  56 }
  57