OvmfPkg/Library/PlatformInitLib/IntelTdxNull.c

   1 /** @file
   2   Initialize Intel TDX support.
   3
   4   Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
   5
   6   SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8 **/
   9
  10 #include <PiPei.h>
  11
  12 /**
  13   In Tdx guest, some information need to be passed from host VMM to guest
  14   firmware. For example, the memory resource, etc. These information are
  15   prepared by host VMM and put in HobList which is described in TdxMetadata.
  16
  17   Information in HobList is treated as external input. From the security
  18   perspective before it is consumed, it should be validated.
  19
  20   @retval   EFI_SUCCESS   Successfully process the hoblist
  21   @retval   Others        Other error as indicated
  22 **/
  23 EFI_STATUS
  24 EFIAPI
  25 ProcessTdxHobList (
  26   VOID
  27   )
  28 {
  29   return EFI_UNSUPPORTED;
  30 }
  31
  32 /**
  33   In Tdx guest, the system memory is passed in TdHob by host VMM. So
  34   the major task of PlatformTdxPublishRamRegions is to walk thru the
  35   TdHob list and transfer the ResourceDescriptorHob and MemoryAllocationHob
  36   to the hobs in DXE phase.
  37
  38   MemoryAllocationHob should also be created for Mailbox and Ovmf work area.
  39 **/
  40 VOID
  41 EFIAPI
  42 PlatformTdxPublishRamRegions (
  43   VOID
  44   )
  45 {
  46 }