ARM体系结构与接口10：MMU编程

阅读量：277 次

发布时间：2019-03-01

本文共 1784 字，大约阅读时间需要 5 分钟。

MMU?????

MMU??

MMU?????????ARM??????????????????????????MMU??????????????

???????MMU?????????(VMSA)??????Virtual Address, VA?????????Physical Address, PA??????????????????????

???????MMU????????????????????????????????????

VMSA??

VMSA???????????MMU??????????????????????VMSA??Translation Table?????????????Translation Lookaside Buffers?TLB????????????

Translation Table?TLB??

Translation Table??????????????????TTB???cp15?c2??????

TLB???Translation Table???????????????????TLB miss???????translation table walk????TLB?

TLB????

?????????????MVA?Modified Virtual Address??????????????????

???????????????????????

??????????????????????????????

MMU??

MMU????????

????????????????????????????????

????????????????????????

????

????MMU?????????????????????????MMU???

???????????????????????????????????????????

MMU??????

????

MMU??????????????????

VA ? TTB Lookup ? TLB Lookup ? PA

?????VA????TTB??Translation Table?????TLB?????????????????PA?

Translation Table??

????????????????????????????cache?write buffer??????????

?Translation Table???.mmudata???

?????????MMU???

??Translation Table????????????

MMU??????

????????????????

lowlevel_init.S???mmu_table???????.mmudata??

init/start.S?????MMU???enable_mmu????SD????????????

cc_bootloader??

?cc_bootloader???????????

?init/mmu.S???mmu_table?????.mmudata??

??enable_mmu?????init/start.S??

??mmu_table???????.mmudata??

?????????

x210 USB OTG?????????eMMC?SD??????SD?????????????????????

???start.S??mmu_table???.mmudata??

????????enable_mmu?????????

start.o??????????start.S????Translation Table??????????

?Translation Table????????.mmudata???

??????????.mmudata??????

????

???????????????????????MMU?Translation Table?????.mmudata???????????????

??

MMU??ARM??????????????????????????????????Translation Table?TLB???MMU?????????????????????

转载地址：http://bhwx.baihongyu.com/

你可能感兴趣的文章

OpenMetadata 命令执行漏洞复现(CVE-2024-28255)

查看>>

OpenMMLab | AI玩家已上线！和InternLM解锁“谁是卧底”新玩法

查看>>

OpenMMLab | S4模型详解：应对长序列建模的有效方法

查看>>

OpenMMLab | 【全网首发】Llama 3 微调项目实践与教程（XTuner 版）

查看>>

OpenMMLab | 不是吧？这么好用的开源标注工具，竟然还有人不知道…

查看>>

OpenMMLab | 面向多样应用需求，书生·浦语2.5开源超轻量、高性能多种参数版本

查看>>

OpenMP 线程互斥锁

查看>>

OpenMV入门教程（非常详细）从零基础入门到精通，看完这一篇就够了

查看>>

OpenObserve云原生可观测平台本地Docker部署与远程访问实战教程

查看>>

openoffice使用总结001---版本匹配问题unknown document format for file: E:\apache-tomcat-8.5.23\webapps\ZcnsDms\

查看>>

views

查看>>

OpenPPL PPQ量化(2)：离线静态量化源码剖析

查看>>

OpenPPL PPQ量化(3)：量化计算图的加载和预处理源码剖析

查看>>

OpenPPL PPQ量化(4)：计算图的切分和调度源码剖析

查看>>

OpenPPL PPQ量化(5)：执行引擎源码剖析

查看>>

openpyxl 模块的使用

查看>>

OpenResty & Nginx：详细对比与部署指南

查看>>

openresty 前端开发入门六之调试篇

查看>>

OpenResty(nginx扩展)实现防cc攻击

查看>>

openresty完美替代nginx

查看>>