Rust in the Kernel (via eBPF)
Writing eBPF programs in Rust with Aya
- Track: Kernel devroom
- Room: UA2.220 (Guillissen)
- Day: Sunday
- Start: 14:00
- End: 14:25
- Video only: ua2220_guillissen
- Chat: Join the conversation!
Linux kernel already supports writing modules in Rust. There is also an ongoing effort of rewriting Linux subsystems in eBPF (for example HID-BPF). It almost feels like there is an ongoing race between Rust and eBPF to implement parts of the kernel, but both can be done at the same time - by writing eBPF programs in Rust with Aya!
Aya is an eBPF library built with a focus on operability and developer experience. It allows for both user-land and kernel-land programs to be written in Rust - and even allows for sharing of code between the two! It has minimal dependencies. When linked with musl, it creates a truly portable, self-contained binary that can be deployed on many Linux distributions and kernel versions.
In this talk I would like to deep dive into the present state of Aya, with focus on:
- How it works
- Currently supported features
- How Rust for Linux and Aya can benefit from each other
- Our plans about BTF and CO-RE support, which is already being implemented and includes changes in Rust ecosystem
Speakers
| Michal Rostecki |