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

python 存入数据库bigint_python基础_MySQL的bigint类型

Python 学习笔记（一）Data type

查看>>

python 安装 easy_install 和 pip 流程

Python 安装程序:“写入文件 C:\Python27\pythonw.exe 时出错“

python 实现将RGBA 转换为RGB

查看>>

Python 实现自动化测试 dubbo 协议接口

查看>>

python编程基础之十六

查看>>

python字符串input输入_Python input()函数：获取用户输入的字符串

查看>>

python 对json数据读取及保存与读取，对dump，dumps，load，loads的理解

查看>>

Python 对mysql数据库的操作

查看>>