Enzian Firmware Resource Interface

Abstract

We introduce the design and implementation of the Enzian Firmware Resource Interface (EFRI), an RPC-based protocol for flexible and exten sible enumeration and implementation of platform-level firmware services. We first formulate the requirements of a firmware-resource protocol on heterogeneous platforms. We then show the detailed design of EFRI against existing industrial standards. Finally, with the help of a few case studies, we evaluate the performance and ease of implementation of standard firmware services in EFRI.