Hi Hao,<br /><br />My plan was to follow up with the driver changes regarding Tcg2Smm and VariableSmmRuntimeDxe once this interface is officially checked in. But if it is preferred to submit the patch for Tcg2Smm and VariableSmmRuntimeDxe to make better sense on how this interface will be consumed, I can send them out in v2. Please let me know how you would like to proceed.<br /><br />Thanks,<br />Kun