56 lines
1.4 KiB
Nix
56 lines
1.4 KiB
Nix
let
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gpuIDs = [
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"1002:744c" # Graphics
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"1002:ab30" # Audio
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];
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in
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{
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pkgs,
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lib,
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config,
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...
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}: {
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options.vfio.enable = with lib;
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mkEnableOption "Configure the machine for VFIO";
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config = let
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cfg = config.vfio;
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in {
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boot = {
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kernelModules = ["kvm-amd" "vfio_pci" "vfio" "vfio_iommu_type1" "kvmfr"];
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extraModulePackages = with config.boot.kernelPackages; [
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kvmfr
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];
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extraModprobeConfig = ''
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# The memory size is calculates in the same way as VM's shmem.
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options kvmfr static_size_mb=64
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'';
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kernelParams = [
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"amd_iommu=on"
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"pcie_acs_override=downstream,multifunction"
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"vfio-pci.ids=1002:744c,1002:ab30"
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"pcie_aspm=off"
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];
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};
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services.udev.extraRules = ''
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SUBSYSTEM=="kvmfr", OWNER="gsimmer", GROUP="kvm", MODE="0660"
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'';
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hardware.opengl.enable = true;
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virtualisation.spiceUSBRedirection.enable = true;
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virtualisation.libvirtd = {
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qemu = {
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verbatimConfig = ''
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cgroup_device_acl = [
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"/dev/null", "/dev/full", "/dev/zero",
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"/dev/random", "/dev/urandom",
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"/dev/ptmx", "/dev/kvm", "/dev/kqemu",
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"/dev/rtc","/dev/hpet", "/dev/vfio/vfio",
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"/dev/kvmfr0"
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]
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'';
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};
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};
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};
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}
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