OvmfPkg/XenPlatformPei/Fv.c

   1 /** @file
   2   Build FV related hobs for platform.
   3
   4   Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
   5   Copyright (c) 2019, Citrix Systems, Inc.
   6
   7   SPDX-License-Identifier: BSD-2-Clause-Patent
   8
   9 **/
  10
  11 #include "PiPei.h"
  12 #include "Platform.h"
  13 #include <Library/DebugLib.h>
  14 #include <Library/HobLib.h>
  15 #include <Library/PeiServicesLib.h>
  16 #include <Library/PcdLib.h>
  17
  18 /**
  19   Publish PEI & DXE (Decompressed) Memory based FVs to let PEI
  20   and DXE know about them.
  21
  22   @retval EFI_SUCCESS   Platform PEI FVs were initialized successfully.
  23
  24 **/
  25 EFI_STATUS
  26 PeiFvInitialization (
  27   VOID
  28   )
  29 {
  30   DEBUG ((DEBUG_INFO, "Platform PEI Firmware Volume Initialization\n"));
  31
  32   //
  33   // Create a memory allocation HOB for the PEI FV.
  34   //
  35   // Allocate as ACPI NVS is S3 is supported
  36   //
  37   BuildMemoryAllocationHob (
  38     PcdGet32 (PcdOvmfPeiMemFvBase),
  39     PcdGet32 (PcdOvmfPeiMemFvSize),
  40     EfiBootServicesData
  41     );
  42
  43   //
  44   // Let DXE know about the DXE FV
  45   //
  46   BuildFvHob (PcdGet32 (PcdOvmfDxeMemFvBase), PcdGet32 (PcdOvmfDxeMemFvSize));
  47
  48   //
  49   // Create a memory allocation HOB for the DXE FV.
  50   //
  51   // If "secure" S3 is needed, then SEC will decompress both PEI and DXE
  52   // firmware volumes at S3 resume too, hence we need to keep away the OS from
  53   // DXEFV as well. Otherwise we only need to keep away DXE itself from the
  54   // DXEFV area.
  55   //
  56   BuildMemoryAllocationHob (
  57     PcdGet32 (PcdOvmfDxeMemFvBase),
  58     PcdGet32 (PcdOvmfDxeMemFvSize),
  59     EfiBootServicesData
  60     );
  61
  62   //
  63   // Let PEI know about the DXE FV so it can find the DXE Core
  64   //
  65   PeiServicesInstallFvInfoPpi (
  66     NULL,
  67     (VOID *)(UINTN)PcdGet32 (PcdOvmfDxeMemFvBase),
  68     PcdGet32 (PcdOvmfDxeMemFvSize),
  69     NULL,
  70     NULL
  71     );
  72
  73   return EFI_SUCCESS;
  74 }