CAJ | 학술논문

当前固件刷新技术不灵活、不能单独更新功能模块,且各硬件平台、操作系统的更新数据传输接口不统一。为解决上述问题,基于统一可扩展固件接口( UEFI)规范的EDKⅡ,提出一种胶囊( Capsule)式固件更新方法,将更新数据封装为Capsule,在固件层对Capsule进行识别、析取,把获取数据写入固件文件系统的更新目标地址,实现对固件系统内核函数、驱动模块、协议、应用程序等的更新、修复。该方法在操作系统加载前实现指定功能模块的定制更新和维护,不限制更新模块的容量,可解决传统固件更新方法过于依赖硬件、操作系统的问题,具有安全、高效、灵活、实用性强的特点。
당전고건쇄신기술불령활、불능단독경신공능모괴,차각경건평태、조작계통적경신수거전수접구불통일。위해결상술문제,기우통일가확전고건접구( UEFI)규범적EDKⅡ,제출일충효낭( Capsule)식고건경신방법,장경신수거봉장위Capsule,재고건층대Capsule진행식별、석취,파획취수거사입고건문건계통적경신목표지지,실현대고건계통내핵함수、구동모괴、협의、응용정서등적경신、수복。해방법재조작계통가재전실현지정공능모괴적정제경신화유호,불한제경신모괴적용량,가해결전통고건경신방법과우의뢰경건、조작계통적문제,구유안전、고효、령활、실용성강적특점。
Conventional firmware update is totally refreshed,which is inflexible for updating the specified modules. In the paper,based on Unified Extensible Firmware Interface(UEFI),an approach of Capsule type firmware update is proposed,which encapsulates the update data in Capsule,transfers the Capsule to firmware system,unpacks the Capsule for recollecting the update data,and writes the refresh data to the required memory. The proposed method is able to update the specified firmware function, module, protocol, or application. Experimental result shows that the given method can perform the firmware update in module,and holds the advantages of security,high-efficiency and strong flexibility.