一种通用的嵌入式操作系统内存保护设计  

A Design of General Memory Protection for Embedded Operating System

作　　者：崔更申[1] 黄廷辉[2] 王力[1] 

机构地区：[1]西安电子科技大学计算机系,西安710071 [2]桂林电子工业学院计算机系,桂林541004

出　　处：《计算机工程》2005年第24期96-98,共3页Computer Engineering

摘　　要：详细介绍了一种基于分页机制的嵌入式操作系统内存保护技术,主要对应用程序和操作系统内核的域进行保护,该设计简单,且具有通用性,能适用不同体系结构的CPU,也能在现有操作系统中使用,最后用示例简单介绍了移植方法。This paper describes the design of memory protection based on page-level memory mechanism in the embedded operating system. The approach overlays protection domains on regions of physical memory that are in use by application processes and the operating system kernel. The design is easy to implement and portable between various CPU. Some of the details encountered when implementing this memory protection mechanism on several processors are presented using a sample at the end of the paper.

关 键 词：嵌入式操作系统 内存保护 内核映射 页表 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]