Analysis Of BIOS System Based On UEFI Technology And Research On Its API Performance Test

Unified Extensible Firmware Interface is the next generation firmware interfacestandard. It is object oriented and consists of drivers and applications that communicatewith each other via standard protocols. UEFI is subjected to replace legacy BIOS andbecome a firmware interface that implemented with high level programming languageand modern software engineering methodology.This paper first studied in detail TIANO framework and EDK module, and theEDK under a specific application, designed to in-depth description of unique technicalfeatures of a new generation of UEFI.This paper designed and completed a PEI phase of the underlying API performanceanalysis test module, the analysis of the MDE Library on UEFI Shell. Finally, after theresearch the RUNTIME phase of low-level API, real time LINUX underlying API call,the paper applied application code obtain underlying time service provide accurate time,and then visually tested the performance of the underlying API.