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

POJ 1095 Trees Made to Order

查看>>

POJ 1113 Wall(计算几何--凸包的周长)

查看>>

poj 1125Stockbroker Grapevine（最短路）

查看>>

Qualitor processVariavel.php 未授权命令注入漏洞复现(CVE-2023-47253)

查看>>

poj 1151 (未完成) 扫描线线段树离散化

查看>>

POJ 1151 / HDU 1542 Atlantis 线段树求矩形面积并

查看>>

poj 1163 数塔

查看>>

POJ 1177 Picture（线段树：扫描线求轮廓周长）

查看>>

Qualitor checkAcesso.php 任意文件上传漏洞复现(CVE-2024-44849)

查看>>

POJ 1182 食物链（并查集拆点）

查看>>

POJ 1185 炮兵阵地（状态压缩DP）

查看>>

POJ 1195 Mobile phones

查看>>

POJ 1228 Grandpa's Estate （稳定凸包）

poj 1286 Necklace of Beads

查看>>

POJ 1321 棋盘问题

查看>>