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。

关键词: 嵌入式操作系统, 内存保护, 内核映射, 页表

Abstract: 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.

中图分类号: 

• TP316