OvmfPkg: Refactor ProcessHobList

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4243

ProcessHobList once was implemented in PlatformInitLib and it walks thru
TdHob list and accept un-accepted memories.

This patch moves the codes to SecTdxHelperLib and rename ProcessHobList
as TdxHelperProcessTdHob

After TdxHelperProcessTdHob is introduced, below changes are applied:
 - Call TdxHelperProcessTdHob instead of ProcessHobList in SecMain.c
   (in both OvmfPkgX64/Sec and IntelTdx/Sec).
 - Delete the duplicated codes in PlatformInitLib

Cc: Erdem Aktas <erdemaktas@google.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Michael Roth <michael.roth@amd.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>

1 files changed, 0 insertions, 17 deletions

diff --git a/OvmfPkg/Include/Library/PlatformInitLib.h b/OvmfPkg/Include/Library/PlatformInitLib.h
index 051b311..57b18b9 100644
--- a/OvmfPkg/Include/Library/PlatformInitLib.h
+++ b/OvmfPkg/Include/Library/PlatformInitLib.h
@@ -211,23 +211,6 @@ PlatformMaxCpuCountInitialization (
   );

 

 /**

-  In Tdx guest, some information need to be passed from host VMM to guest

-  firmware. For example, the memory resource, etc. These information are

-  prepared by host VMM and put in HobList which is described in TdxMetadata.

-

-  Information in HobList is treated as external input. From the security

-  perspective before it is consumed, it should be validated.

-

-  @retval   EFI_SUCCESS   Successfully process the hoblist

-  @retval   Others        Other error as indicated

-**/

-EFI_STATUS

-EFIAPI

-ProcessTdxHobList (

-  VOID

-  );

-

-/**

   In Tdx guest, the system memory is passed in TdHob by host VMM. So

   the major task of PlatformTdxPublishRamRegions is to walk thru the

   TdHob list and transfer the ResourceDescriptorHob and MemoryAllocationHob