[edk2-devel] [PATCH V3 7/8] OvmfPkg: Update DxeAcpiTimerLib to read HostBridgeDevId in PlatformInfoHob

[Gerd Hoffmann]

>    //
>    // Query Host Bridge DID to determine platform type
> +  // Tdx guest stores the HostBridgePciDevId in a GuidHob.
> +  // So we first check if this HOB exists
>    //
> -  HostBridgeDevId = PcdGet16 (PcdOvmfHostBridgePciDevId);
> +  GuidHob = GetFirstGuidHob (&gUefiOvmfPkgTdxPlatformGuid);
> +  if (GuidHob != NULL) {
> +    PlatformInfo    = (EFI_HOB_PLATFORM_INFO *)GET_GUID_HOB_DATA (GuidHob);
> +    HostBridgeDevId = PlatformInfo->HostBridgePciDevId;
> +  } else {
> +    HostBridgeDevId = PcdGet16 (PcdOvmfHostBridgePciDevId);
> +  }

Another thing we can probably simplify when we use a PlatformInfoHob in
both PEi and PEI-less mode.

> +[Guids]
> +  gUefiOvmfPkgTdxPlatformGuid                      ## CONSUMES

name this UefiOvmfPkgPlatformInfoGuid ?

take care,
  Gerd



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