Overview

A lightweight, bare-metal virtio backend library that enables developers to quickly implement virtio devices (e.g., virtio-net, virtio-blk) in hypervisors, VMMs, or other environments.

Features

• No OS dependencies — runs directly on physical hardware.
• Virtio 1.0 compliant - Support for split virtqueues.
• Support virtio-blk & virtio-net & virtio-console.
• Flexible I/O backend - Support for adding your own custom virtio device module.
• Isolate platform-specific code - The user implements a small set of callbacks for memory access, interrupt delivery...

Usage

Build

make

Source layout

virtio/      # Sources and internal headers for libMyVirtio.a
backend/     # Sources and internal headers for libMyVirtio_backend.a
template/    # Integration template showing how to wire both libraries

Output

After building, the following files are generated under the output/ directory:

output/
├── libMyVirtio.a      # Static library
├── libMyVirtio_backend.a
├── virtio_wrapper.h   # Public header for libMyVirtio.a
└── virtio_backend.h   # Public header for libMyVirtio_backend.a

Acknowledgements

Core virtqueue and device state machine logic derived from xvisor (see https://github.com/xvisor/xvisor.git). Thank you to the xvisor team for their pioneering open-source hypervisor work.

License

GPLv2 License -- see LICENSE.