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.
出处
《计算机工程》
EI
CAS
CSCD
北大核心
2005年第24期96-98,共3页
Computer Engineering
关键词
嵌入式操作系统
内存保护
内核映射
页表
Embedded operating system
Memory protection
Kernel mapping
Page table
