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

[Min Xu]

On February 23, 2022 7:04 PM, Gerd Hoffmann wrote:
> 
> >    //
> >    // 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.
Agree.
> 
> > +[Guids]
> > +  gUefiOvmfPkgTdxPlatformGuid                      ## CONSUMES
> 
> name this UefiOvmfPkgPlatformInfoGuid ?
Sure. Thanks for the suggestion. It will be renamed in the next version.

Thanks
Min


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