一种基于PowerPC的安全SoC设计  

A PowerPC based secure SoC design

作　　者：赵福发 郭炜[1] 魏继增[1] 

机构地区：[1]天津大学计算机科学与技术学院,天津300072

出　　处：《计算机工程与科学》2014年第12期2394-2399,共6页Computer Engineering & Science

基　　金：中国科学院计算机体系结构国家重点实验室开放课题资助项目

摘　　要：提出一种基于PowerPC的安全SoC架构,通过硬件隔离的方法防御软件攻击。将软硬件资源隔离成安全和非安全两种,由硬件控制资源访问请求,可以为上层软件提供更好的安全保障。基于这种思想,对基于PowerPC的SoC架构进行了安全扩展,为上层软件提供安全和非安全两种运行环境。任何数据访问请求都会根据运行环境以及所访问的资源的安全状态判定访问是否被允许。另外,针对这种安全架构,采用基于Qemu和SystemC的高层建模方法进行建模,验证了该架构能够有效保护数据安全。A PowerPC based secure SoC architecture is proposed to defend software attacks by hard ware isolation. If the hardware and software resources can be isolated to secure and non-secure resources and all the access requests are controlled by specific hardware design, the software level will get a better safeguard. Based on this idea, a secure extension to the PowerPC based SoC architecture is proposed, which builds the secure and non-secure runtime environment for software applications. According to the current runtime environment and security status,the permit of any access request is judged. In addition, the high-level model based on QEMU and SystemC for the proposed secure SoC is completed to verify that it can indeed protect the security of data.

关 键 词：安全SoC POWERPC 软件攻击 硬件隔离架构 安全执行环境 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]