高技术通讯（英文版）2003，Vol.9Issue(4)：27-32,6.
The MMU Implementation of Unity-1 Microprocessor
The MMU Implementation of Unity-1 Microprocessor
摘要
Abstract
Virtual memory management is always a very essential issue of the modern microprocessor design. A memory management unit (MMU) is designed to implement a virtual machine for user programs, and provides a management mechanism between the operating system and user programs. This paper analyzes the tradeoffs considered in the MMU design of Unity-11 CPU of Peking University, and introduces in detail the solution of pure hardware table walking with two-level page table organization. The implementation takes care of required operations and high performances needed by modern operating systems and low costs needed by embedded systems. This solution has been silicon proven, and successfully porting the Linux 2.4.17 kernel, the Xwindow system, GNOME and most application software onto the Unity platform.关键词
Unity-1, MMU, TLB, table walking, microprocessorKey words
Unity-1, MMU, TLB, table walking, microprocessor分类
信息技术与安全科学引用本文复制引用
Song Chuanhua(宋传华),Cheng Xu,Zhu Dexin..The MMU Implementation of Unity-1 Microprocessor[J].高技术通讯（英文版）,2003,9(4):27-32,6.基金项目
Supported by High Technology Research and Development Program of China and National Natural Science Foundation of China. （）
