There are few places in the codebase assuming QemuFwCfg will be present and supported, which can cause some issues when trying to rely on the QemuFwCfgLibNull implementation of QemuFwCfgLib. Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com> Acked-by: Jiewen Yao <jiewen.yao@intel.com>