NixOS modules for Intel SR-IOV graphics

Prerequisites

• Intel Iris Xe graphics card with SR-IOV support
• NixOS 24.05 or later
• VirtualBox with KVM backend (for use in a VM)

Description

This repository provides ready-to-use NixOS modules to enable Intel's SR-IOV graphics acceleration.

The modules deploy a custom kernel and firmware to enable SR-IOV in the graphics card. Additionally, a systemd service is configured to enable the virtual functions upon boot.

Usage

Just add the following snippet to your NixOS configuration and run nixos-rebuild:

let
  sriov-modules = builtins.fetchGit {
    url = "https://github.com/cyberus-technology/nixos-sriov";
    ref = "main";
  };
in
{
  ...
  imports = [
    "${sriov-modules}/sriov.nix"
  ];
  
  virtualisation.cyberus.intel-graphics-sriov.enable = true;
  virtualisation.virtualbox.host = {
    enable = true;
    enableKvm = true;
    enableHardening = false;
    addNetworkInterface = false;
  };
  ...
}

For further instructions, refer to https://github.com/cyberus-technology/virtualbox-kvm/blob/dev/README.intel-sriov-graphics.md. The main difference there is the Ubuntu host system, but everything else applies as described there.

Caveats

This feature is experimental and not guaranteed to work on all machines. Feel free to reach out for support, but we provide this as convenience tooling, not a polished product.