0140_ARM_CPU_Refer_Docs.md

ARM CPU Refer Docs

CPU方面的一些文档参考

参考文档

• 如何编写一个硬件模拟器？ - 知乎用户的回答 - 知乎
• 南京大学 计算机科学与技术系 计算机系统基础 课程实验 2019
  • https://legacy.gitbook.com/@nju-ics
    • ICS2019 Programming Assignment
• How To Write a Computer Emulator
• ARM A系列处理器文档参考
• Armv8-A Instruction Set Architecture - Arm Developer

ARM处理相关参考

如果需要研究ARM处理内部处理流程文档，可以参考下面网址，去找对应的CPU的信息

• https://developer.arm.com/
• https://developer.arm.com/architectures/learn-the-architecture/a-profile
  • learn-the-architecture分类是用于学习ARM体系架构的文档

SMMU Hypervisor

• System MMU
• https://developer.arm.com/architectures/learn-the-architecture/memory-management
• https://developer.arm.com/architectures/learn-the-architecture/memory-management/address-spaces-in-armv8-a
  • 
    • 如上图显示有三种虚拟地址转换空间
      • NS.EL0 and NS.EL1 (Non-secure EL0/EL1).
        • 含有两组地址转换表，从而允许hypervisor管理虚拟机可见的物理地址
      • NS.EL2 (Non-secure EL2).
      • EL3.
  • 
    • The Stage 1 tables translate virtual addresses to intermediate physical addresses (IPAs). In Stage 1 the OS thinks that the IPAs are physical address spaces.
    • The hypervisor controls a second set of translations, which we call Stage 2. This second set of translations translates IPAs to physical addresses.
• https://developer.arm.com/docs/ihi0048/latest