https://pdos.csail.mit.edu/6.S081/2021/

• RISC-V
  是一个基于精简指令集原则的开源指令集架构(Reduced)
• QEMU
  A generic and open source machine emulator and virtualizer

Lab Guidance

https://pdos.csail.mit.edu/6.S081/2021/labs/guidance.html

use gdb:
https://pdos.csail.mit.edu/6.S081/2021/lec/gdb_slides.pdf

make qemu-gdb  
mac: gdb (in another window)
windows WSL: gdb-multiarch (in another window)

xv6_labs

• Lab Utilities
• Lab System calls
• Lab Page tables
• Lab Traps
• Lab Copy on-write
• Lab Multithreading
• Lab network driver
• Lab Lock
• Lab File system
• Lab mmap