I integrated my from-scratch TCP/IP stack into the xv6-riscv OS

In plain words

This project integrates a from-scratch TCP/IP networking stack into the xv6-riscv teaching operating system, enabling network communication through a virtio-net driver in QEMU. It ports the microps stack from user-space into the kernel and implements standard socket system calls. The tool is designed for developers and students who want to understand how operating systems and network protocols work at a fundamental level by studying and running actual implementations.

written from the facts on this page · September 2026

From the sources

Xv6 for RISC-V with Networking. Contribute to pandax381/xv6-riscv-net development by creating an account on GitHub.

This project integrates a TCP/IP protocol stack into the xv6-riscv operating system, enabling network capabilities. TCP/IP Stack : A kernel-space port of microps , a user-mode TCP/IP stack that I am also developing. Network Driver : A virtio-net driver for network device emulation in QEMU. Socket API : A standard socket interface for network applications. Network Configuration : A simple ifconfig command for basic network settings. $ git clone https://github.com/pandax381/xv6-riscv-net $ cd xv6-riscv-net $ make qemu Note This command will build the project and launch QEMU. On the first run, it will also create a TAP network device named tap0 on your host machine and assign it the IP address…from github.com

In the maker’s words, at launch

Hi HN, To truly understand how operating systems and network protocols work, I decided to combine two classic learning tools: the xv6 teaching OS and a from-scratch TCP/IP stack. I'm excited to share the result: my own from-scratch TCP/IP networking stack running directly inside the xv6-riscv…

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