OvmfPkg/Bhyve/PlatformPei/Fv.c

   1 /** @file
   2   Build FV related hobs for platform.
   3
   4   Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
   5   SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #include "PiPei.h"
  10 #include "Platform.h"
  11 #include <Library/DebugLib.h>
  12 #include <Library/HobLib.h>
  13 #include <Library/PcdLib.h>
  14 #include <Library/PeiServicesLib.h>
  15
  16 /**
  17   Publish PEI & DXE (Decompressed) Memory based FVs to let PEI
  18   and DXE know about them.
  19
  20   @retval EFI_SUCCESS   Platform PEI FVs were initialized successfully.
  21
  22 **/
  23 EFI_STATUS
  24 PeiFvInitialization (
  25   VOID
  26   )
  27 {
  28   BOOLEAN  SecureS3Needed;
  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     mS3Supported ? EfiACPIMemoryNVS : EfiBootServicesData
  41     );
  42
  43   //
  44   // Let DXE know about the DXE FV
  45   //
  46   BuildFvHob (PcdGet32 (PcdOvmfDxeMemFvBase), PcdGet32 (PcdOvmfDxeMemFvSize));
  47
  48   SecureS3Needed = mS3Supported && FeaturePcdGet (PcdSmmSmramRequire);
  49
  50   //
  51   // Create a memory allocation HOB for the DXE FV.
  52   //
  53   // If "secure" S3 is needed, then SEC will decompress both PEI and DXE
  54   // firmware volumes at S3 resume too, hence we need to keep away the OS from
  55   // DXEFV as well. Otherwise we only need to keep away DXE itself from the
  56   // DXEFV area.
  57   //
  58   BuildMemoryAllocationHob (
  59     PcdGet32 (PcdOvmfDxeMemFvBase),
  60     PcdGet32 (PcdOvmfDxeMemFvSize),
  61     SecureS3Needed ? EfiACPIMemoryNVS : EfiBootServicesData
  62     );
  63
  64   //
  65   // Additionally, said decompression will use temporary memory above the end
  66   // of DXEFV, so let's keep away the OS from there too.
  67   //
  68   if (SecureS3Needed) {
  69     UINT32  DxeMemFvEnd;
  70
  71     DxeMemFvEnd = PcdGet32 (PcdOvmfDxeMemFvBase) +
  72                   PcdGet32 (PcdOvmfDxeMemFvSize);
  73     BuildMemoryAllocationHob (
  74       DxeMemFvEnd,
  75       PcdGet32 (PcdOvmfDecompressionScratchEnd) - DxeMemFvEnd,
  76       EfiACPIMemoryNVS
  77       );
  78   }
  79
  80   //
  81   // Let PEI know about the DXE FV so it can find the DXE Core
  82   //
  83   PeiServicesInstallFvInfoPpi (
  84     NULL,
  85     (VOID *)(UINTN)PcdGet32 (PcdOvmfDxeMemFvBase),
  86     PcdGet32 (PcdOvmfDxeMemFvSize),
  87     NULL,
  88     NULL
  89     );
  90
  91   return EFI_SUCCESS;
  92 }