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update flake to support xe module, fix nixos tests and update readme

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This commit is contained in:
Susan
2025-10-11 10:12:05 +03:00
parent 1ee8e93fa3
commit 3296a743a6
5 changed files with 175 additions and 94 deletions
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37
.github/workflows/test.yml vendored
View File

@@ -4,6 +4,7 @@ on:
workflow_dispatch:
push:
jobs:
test-ubuntu-plucky:
runs-on: ubuntu-24.04
@@ -24,7 +25,7 @@ jobs:
KERNEL_SOURCE_DIR=$(dpkg -L $(dpkg -s linux-headers-generic | grep "Depends: " | cut -d " " -f2) | grep -m 1 -Eo ".*/lib/modules/[^/]+/build")
KERNELRELEASE=$(echo -n "$KERNEL_SOURCE_DIR" | sed 's/.*\/lib\/modules\///g;s/\/build//')
make -j$(nproc) KERNELRELEASE=$KERNELRELEASE -C $KERNEL_SOURCE_DIR M=$(pwd)
test-proxmox-trixie:
runs-on: ubuntu-24.04
container:
@@ -70,7 +71,7 @@ jobs:
KERNEL_SOURCE_DIR=$(pacman -Qql linux-headers | grep -m 1 -Eo ".*/lib/modules/[^/]+/build")
KERNELRELEASE=$(echo -n "$KERNEL_SOURCE_DIR" | sed 's/.*\/lib\/modules\///g;s/\/build//')
sudo make -j$(nproc) KERNELRELEASE=$KERNELRELEASE -C $KERNEL_SOURCE_DIR M=$(pwd)
test-archlinux-lts:
runs-on: ubuntu-24.04
container:
@@ -116,19 +117,19 @@ jobs:
KERNELRELEASE=$(echo -n "$KERNEL_SOURCE_DIR" | sed 's/.*\/lib\/modules\///g;s/\/build//')
sudo make -j$(nproc) KERNELRELEASE=$KERNELRELEASE -C $KERNEL_SOURCE_DIR M=$(pwd)
# test-nixos:
# runs-on: ubuntu-24.04
# steps:
# - name: 'Install Nix'
# uses: cachix/install-nix-action@v31.5.1
# - name: Checkout
# uses: actions/checkout@v4
# with:
# path: i915-sriov-dkms
# - name: Build i915-sriov kernel module for NixOS
# working-directory: i915-sriov-dkms
# env:
# GC_DONT_GC: '1'
# run: |
# nix --version
# nix flake check
test-nixos:
runs-on: ubuntu-24.04
steps:
- name: 'Install Nix'
uses: cachix/install-nix-action@v31.5.1
- name: Checkout
uses: actions/checkout@v4
with:
path: i915-sriov-dkms
- name: Build i915-sriov kernel module for NixOS
working-directory: i915-sriov-dkms
env:
GC_DONT_GC: '1'
run: |
nix --version
nix flake check

4
README.md
View File

@@ -52,6 +52,10 @@ You can create up to 7 VFs on Intel UHD Graphics
For Arch Linux users, it is available in AUR. [i915-sriov-dkms](https://aur.archlinux.org/packages/i915-sriov-dkms)
You also can download the package from the [releases page](https://github.com/strongtz/i915-sriov-dkms/releases) and install it with `pacman -U`.
## NixOS Linux Installation Steps (Tested Kernel 6.17)
For NixOS users, the i915-sriov kernel module can be directly included in your NixOS configuration without the use of DKMS. In particular, the kernel module is provided as a NixOS module that must be included in your NixOS configuration. This NixOS module places the i915-sriov kernel module via an overlay in your `pkgs` attribute set with the attribute name `i915-sriov`. This kernel module can then be included in your configuration by declaring `boot.extraModulePackages = [ pkgs.i915-sriov ];` The same applies also to `xe-sriov`. It is recommened to set `inputs.nixpkgs.follows = "nixpkgs"` to avoid version mismatch.
## PVE Host Installation Steps (PVE 9 with Kernel 6.14)
1. Install build tools: `apt install build-* dkms`
1. Install the kernel and headers for desired version: `apt install proxmox-headers-6.14 proxmox-kernel-6.14` (for unsigned kernel).

40
default.nix
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@@ -1,40 +0,0 @@
{
lib,
stdenv,
nix-gitignore,
kernel
}:
let
pkgbuildLines = lib.strings.splitString "\n" (builtins.readFile ./PKGBUILD);
versionDefinition = lib.lists.findFirst (x: lib.strings.hasPrefix "pkgver=" x) "unknown" pkgbuildLines;
version = lib.strings.removePrefix "pkgver=" versionDefinition;
in
stdenv.mkDerivation rec {
inherit version;
name = "i915-sriov-module-${version}-${kernel.version}";
src = lib.cleanSource (nix-gitignore.gitignoreSourcePure [
./.gitignore
"result*"
] ./.
);
hardeningDisable = [ "pic" "format" ];
nativeBuildInputs = kernel.moduleBuildDependencies;
buildPhase = ''
make -C ${kernel.dev}/lib/modules/${kernel.modDirVersion}/build M=$PWD
'';
installPhase = ''
install -D i915.ko $out/lib/modules/${kernel.modDirVersion}/kernel/drivers/gpu/drm/i915/i915.ko
'';
meta = {
platforms = [ "x86_64-linux" ];
description = "i915 patched with SR-IOV vGPU functionality";
homepage = "https://github.com/strongtz/i915-sriov-dkms";
};
}

6
flake.lock generated
View File

@@ -2,11 +2,11 @@
"nodes": {
"nixpkgs": {
"locked": {
"lastModified": 1748026106,
"narHash": "sha256-6m1Y3/4pVw1RWTsrkAK2VMYSzG4MMIj7sqUy7o8th1o=",
"lastModified": 1760038930,
"narHash": "sha256-Oncbh0UmHjSlxO7ErQDM3KM0A5/Znfofj2BSzlHLeVw=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "063f43f2dbdef86376cc29ad646c45c46e93234c",
"rev": "0b4defa2584313f3b781240b29d61f6f9f7e0df3",
"type": "github"
},
"original": {

182
flake.nix
View File

@@ -5,42 +5,158 @@
nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
};
outputs = { self, nixpkgs }:
let
# dummy NixOS configuration with the i915-sriov driver
testNixosConfiguration = nixpkgs.lib.nixosSystem {
system = "x86_64-linux";
modules = [(
{ pkgs, modulesPath, ... }: {
imports = [
"${modulesPath}/profiles/minimal.nix" # reduce NixOS system size
self.nixosModules.default # include i915-sriov kernel module in pkgs
outputs =
{ self, nixpkgs }:
let
lib = nixpkgs.lib;
pkgbuildLines = lib.strings.splitString "\n" (builtins.readFile ./PKGBUILD);
versionDefinition = lib.lists.findFirst (
line: lib.strings.hasPrefix "pkgver=" line
) "unknown" pkgbuildLines;
version = lib.strings.removePrefix "pkgver=" versionDefinition;
i915Module =
{
stdenv,
nix-gitignore,
kernel,
}:
stdenv.mkDerivation rec {
inherit version;
name = "i915-sriov-module-${version}-${kernel.version}";
src = lib.cleanSource (
nix-gitignore.gitignoreSourcePure [
./.gitignore
"result*"
] ./.
);
hardeningDisable = [
"pic"
"format"
];
nativeBuildInputs = kernel.moduleBuildDependencies;
# reduce NixOS system size
nix.enable = false;
system.switch.enable = false;
buildPhase = ''
make -C ${kernel.dev}/lib/modules/${kernel.modDirVersion}/build \
M=$PWD \
drivers/gpu/drm/i915/i915.ko \
compat/intel_sriov_compat.ko
'';
# required for dummy system
fileSystems."/" = { device = "/dev/sda1"; fsType = "ext4"; };
boot.loader.systemd-boot.enable = true;
system.stateVersion = "25.11"; # do not change, see https://nixos.org/manual/nixos/stable/options.html#opt-system.stateVersion
installPhase = ''
install -D drivers/gpu/drm/i915/i915.ko \
$out/lib/modules/${kernel.modDirVersion}/kernel/drivers/gpu/drm/i915/i915.ko
install -D compat/intel_sriov_compat.ko \
$out/lib/modules/${kernel.modDirVersion}/kernel/compat/gpu/drm/i915/intel_sriov_compat.ko
'';
# build and use i915-sriov kernel module
boot.extraModulePackages = [ pkgs.i915-sriov ];
}
)];
meta = {
platforms = [ "x86_64-linux" ];
description = "Intel i915 driver patched with SR-IOV vGPU functionality";
homepage = "https://github.com/strongtz/i915-sriov-dkms";
};
};
xeModule =
{
stdenv,
nix-gitignore,
kernel,
}:
stdenv.mkDerivation rec {
inherit version;
name = "xe-sriov-module-${version}-${kernel.version}";
src = lib.cleanSource (
nix-gitignore.gitignoreSourcePure [
./.gitignore
"result*"
] ./.
);
hardeningDisable = [
"pic"
"format"
];
nativeBuildInputs = kernel.moduleBuildDependencies;
buildPhase = ''
make -C ${kernel.dev}/lib/modules/${kernel.modDirVersion}/build \
M=$PWD \
compat/intel_sriov_compat.ko \
drivers/gpu/drm/xe/xe.ko
'';
installPhase = ''
install -D drivers/gpu/drm/xe/xe.ko \
$out/lib/modules/${kernel.modDirVersion}/kernel/drivers/gpu/drm/xe/xe.ko
install -D compat/intel_sriov_compat.ko \
$out/lib/modules/${kernel.modDirVersion}/kernel/compat/gpu/drm/xe/intel_sriov_compat.ko
'';
meta = {
platforms = [ "x86_64-linux" ];
description = "Intel xe driver patched with SR-IOV vGPU functionality";
homepage = "https://github.com/strongtz/i915-sriov-dkms";
};
};
# dummy NixOS configuration with the SR-IOV drivers
testNixosConfiguration = nixpkgs.lib.nixosSystem {
system = "x86_64-linux";
modules = [
(
{ pkgs, modulesPath, ... }:
{
imports = [
"${modulesPath}/profiles/minimal.nix" # reduce NixOS system size
self.nixosModules.default # include the SR-IOV kernel modules in pkgs
];
# reduce NixOS system size
nix.enable = false;
system.switch.enable = false;
# required for dummy system
fileSystems."/" = {
device = "/dev/sda1";
fsType = "ext4";
};
boot = {
loader.systemd-boot.enable = true;
kernelPackages = pkgs.linuxPackages_latest;
};
system.stateVersion = "25.11"; # do not change, see https://nixos.org/manual/nixos/stable/options.html#opt-system.stateVersion
# build and use both SR-IOV kernel modules
boot.extraModulePackages = [
pkgs.i915-sriov
pkgs.xe-sriov
];
}
)
];
};
in
{
# builds the SR-IOV drivers
# this requires a dummy NixOS configuration due to the driver build environment depending on the specific kernel that is used
checks.x86_64-linux.build-i915-sriov = testNixosConfiguration.config.system.build.toplevel;
# include this NixOS module to include the SR-IOV kernel modules as derivations in your pkgs via an overlay
nixosModules.default =
{ config, ... }:
{
nixpkgs.overlays = [
(final: prev: {
i915-sriov = config.boot.kernelPackages.callPackage i915Module { };
xe-sriov = config.boot.kernelPackages.callPackage xeModule { };
})
];
};
};
in {
# builds the i915-sriov driver
# this requires a dummy NixOS configuration due to the driver build environment depending on the specific kernel that is used
checks.x86_64-linux.build-i915-sriov = testNixosConfiguration.config.system.build.toplevel;
# include this NixOS module to include the i915-sriov kernel module as a derivation in your pkgs via an overlay
nixosModules.default = { config, ... }: {
nixpkgs.overlays = [(final: prev: {
i915-sriov = config.boot.kernelPackages.callPackage ./default.nix { };
})];
};
};
}