Since there will be guest OSes that don't support unaccepted memory type (at least initially), and what will be run won't be known at firmware build time, can&nbsp;<span style="white-space: pre-wrap;">PcdLazyAcceptPartialMemorySize</span>&nbsp;be initialized by a QemuFwCfg option instead of a FixedPcd? I started a different thread on this, but perhaps it was lost.