MIT 6.S81 操作系统笔记📒

OS Organization and System Calls

Page Tables

RISC-V Calling Convention and Stack Frames

Isolation & System Call Entry_Exit

trampline 在用户态和内核态都有映射

satp 程序计数器

jr

usertrap

spec 寄存器

srep 将satp程序计数器设置为等于spec寄存器

Page Faults

Interrupts

Multiprocessors and Locks

Thread Switching

Sleep & Wakeup

File Systems

Crash Recovery

File System Performance and Fast Crash Recovery

Virtual Memory for Applications

OS Organization

Virtual Machinals

Kernels and High-Level-Language(HLL)

Networking

Meltdown

RCU