oslab in ZJU fall 2022

Instructor: jjm

Notes

This repository is created for synchronizing codes between different machines and reference. The codes will be submitted to PTA for duplication checking, please obey the code of academy.

Contents

Lab0

• Compile Linux kernel using cross compiling tools
• Learn how to debug using gdb in qemu

Lab1

• Complete RV64 kernel boot
• Call API provided by OpenSBI to implement the output of characters in console.

OpenSBI v0.9
____                    _____ ____ _____
/ __ \                  / ____|  _ \_   _|
| |  | |_ __   ___ _ __ | (___ | |_) || |
| |  | | '_ \ / _ \ '_ \ \___ \|  _ < | |
| |__| | |_) |  __/ | | |____) | |_) || |_
\____/| .__/ \___|_| |_|_____/|____/_____|
      | |
      |_|

......

Boot HART MIDELEG         : 0x0000000000000222
Boot HART MEDELEG         : 0x000000000000b109

......
2022 Hello RISC-V

Lab2

• Set timer interrupt event
• Complete trap handler

kernel is running!
[S] Supervisor Mode Timer Interrupt
kernel is running!
[S] Supervisor Mode Timer Interrupt
kernel is running!
[S] Supervisor Mode Timer Interrupt
kernel is running!
[S] Supervisor Mode Timer Interrupt
kernel is running!
[S] Supervisor Mode Timer Interrupt
kernel is running!
[S] Supervisor Mode Timer Interrupt
kernel is running!
[S] Supervisor Mode Timer Interrupt
kernel is running!
[S] Supervisor Mode Timer Interrupt
kernel is running!
[S] Supervisor Mode Timer Interrupt

Lab3

• Implement switch of thread
• Complete thread schedule(SJF, PRIORITY)

OpenSBI v0.9
  ____                    _____ ____ _____
 / __ \                  / ____|  _ \_   _|
| |  | |_ __   ___ _ __ | (___ | |_) || |
| |  | | '_ \ / _ \ '_ \ \___ \|  _ < | |
| |__| | |_) |  __/ | | |____) | |_) || |_
 \____/| .__/ \___|_| |_|_____/|____/_____|
       | |
       |_|

...

Boot HART MIDELEG         : 0x0000000000000222
Boot HART MEDELEG         : 0x000000000000b109

...mm_init done!
...proc_init done!
Hello RISC-V
idle process is running!

SET [PID = 1 COUNTER = 10]
SET [PID = 2 COUNTER = 10]
SET [PID = 3 COUNTER = 5]
SET [PID = 4 COUNTER = 2]

switch to [PID = 4 COUNTER = 2]
[PID = 4] is running. auto_inc_local_var = 1
[PID = 4] is running. auto_inc_local_var = 2

switch to [PID = 3 COUNTER = 5]
[PID = 3] is running. auto_inc_local_var = 1
.....
[PID = 3] is running. auto_inc_local_var = 5

switch to [PID = 2 COUNTER = 10]
[PID = 2] is running. auto_inc_local_var = 1
...
[PID = 2] is running. auto_inc_local_var = 10

switch to [PID = 1 COUNTER = 10]
[PID = 1] is running. auto_inc_local_var = 1
...
[PID = 1] is running. auto_inc_local_var = 10

SET [PID = 1 COUNTER = 9]
SET [PID = 2 COUNTER = 4]
SET [PID = 3 COUNTER = 4]
SET [PID = 4 COUNTER = 10]

switch to [PID = 3 COUNTER = 4]
[PID = 3] is running. auto_inc_local_var = 6
...
[PID = 3] is running. auto_inc_local_var = 9

Lab4

OpenSBI v0.9
  ____                    _____ ____ _____
 / __ \                  / ____|  _ \_   _|
| |  | |_ __   ___ _ __ | (___ | |_) || |
| |  | | '_ \ / _ \ '_ \ \___ \|  _ < | |
| |__| | |_) |  __/ | | |____) | |_) || |_
 \____/| .__/ \___|_| |_|_____/|____/_____|
       | |
       |_|

...

Boot HART MIDELEG         : 0x0000000000000222
Boot HART MEDELEG         : 0x000000000000b109

...mm_init done!
...proc_init done!
Hello RISC-V
idle process is running!

switch to [PID = 28 COUNTER = 1] 
[PID = 28] is running! thread space begin at 0xffffffe007fa2000

switch to [PID = 12 COUNTER = 1] 
[PID = 12] is running! thread space begin at 0xffffffe007fb2000

switch to [PID = 14 COUNTER = 2] 
[PID = 14] is running! thread space begin at 0xffffffe007fb0000
[PID = 14] is running! thread space begin at 0xffffffe007fb0000

switch to [PID = 9 COUNTER = 2] 
[PID = 9] is running! thread space begin at 0xffffffe007fb5000
[PID = 9] is running! thread space begin at 0xffffffe007fb5000

switch to [PID = 2 COUNTER = 2] 
[PID = 2] is running! thread space begin at 0xffffffe007fbc000
[PID = 2] is running! thread space begin at 0xffffffe007fbc000

switch to [PID = 1 COUNTER = 2] 
[PID = 1] is running! thread space begin at 0xffffffe007fbd000
[PID = 1] is running! thread space begin at 0xffffffe007fbd000

switch to [PID = 29 COUNTER = 3] 
[PID = 29] is running! thread space begin at 0xffffffe007fa1000
[PID = 29] is running! thread space begin at 0xffffffe007fa1000
[PID = 29] is running! thread space begin at 0xffffffe007fa1000

switch to [PID = 11 COUNTER = 3] 
[PID = 11] is running! thread space begin at 0xffffffe007fb3000
...

Instruction

guide book