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

PHP -算法-二路归并

查看>>

php 2条不一样的json数据怎么放在一个json里面_如果你是PHP开发者，请务必了解一下Composer...

查看>>

php 360 不记住密码,JavaScript_多种方法实现360浏览器下禁止自动填写用户名密码，目前开发一个项目遇到一个很 - phpStudy...

查看>>

regExp的match、exec、test区别

查看>>

php 404 自定义,APACHE 自定义404错误页面设置方法

查看>>

PHP 5.3.0以上推荐使用mysqlnd驱动

查看>>

php aes sha1解密,PHP AES加密/解密

查看>>

php CI框架单个file表单多文件上传例子

查看>>

php composer

查看>>

reflow和repaint引发的性能问题

php curl_init函数用法(http://blog.sina.com.cn/s/blog_640738130100tsig.html)

查看>>

php curl_multi批量发送http请求

查看>>

php curl请求微信发红包接口出现错误：Peer's Certificate issuer is not recognized.

查看>>

PHP curl请求错误汇总和解决方案

查看>>

php echo 输出锘?... 乱码问题

查看>>

PHP empty、isset、isnull的区别

查看>>

ReferenceQueue的使用

查看>>

PHP FastCGI进程管理器PHP-FPM的架构

查看>>