diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index 12d9e1adf23..d6f2c85a810 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -787,6 +787,7 @@
./virtualisation/lxd.nix
./virtualisation/amazon-options.nix
./virtualisation/hyperv-guest.nix
+ ./virtualisation/kvmgt.nix
./virtualisation/openvswitch.nix
./virtualisation/parallels-guest.nix
./virtualisation/qemu-guest-agent.nix
diff --git a/nixos/modules/virtualisation/kvmgt.nix b/nixos/modules/virtualisation/kvmgt.nix
new file mode 100644
index 00000000000..fc0bedb68bd
--- /dev/null
+++ b/nixos/modules/virtualisation/kvmgt.nix
@@ -0,0 +1,64 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+ cfg = config.virtualisation.kvmgt;
+ kernelPackages = config.boot.kernelPackages;
+ vgpuOptions = {
+ uuid = mkOption {
+ type = types.string;
+ description = "UUID of VGPU device. You can generate one with libossp_uuid.";
+ };
+ };
+in {
+ options = {
+ virtualisation.kvmgt = {
+ enable = mkEnableOption ''
+ KVMGT (iGVT-g) VGPU support. Allows Qemu/KVM guests to share host's Intel integrated graphics card.
+ Currently only one graphical device can be shared
+ '';
+ # multi GPU support is under the question
+ device = mkOption {
+ type = types.string;
+ default = "0000:00:02.0";
+ description = "PCI ID of graphics card. You can figure it with ls /sys/class/mdev_bus.";
+ };
+ vgpus = mkOption {
+ default = {};
+ type = with types; attrsOf (submodule [ { options = vgpuOptions; } ]);
+ description = ''
+ Virtual GPUs to be used in Qemu. You can find devices via ls /sys/bus/pci/devices/*/mdev_supported_types
+ and find info about device via cat /sys/bus/pci/devices/*/mdev_supported_types/i915-GVTg_V5_4/description
+ '';
+ example = {
+ "i915-GVTg_V5_8" = {
+ uuid = "a297db4a-f4c2-11e6-90f6-d3b88d6c9525";
+ };
+ };
+ };
+ };
+ };
+
+ config = mkIf cfg.enable {
+ assertions = singleton {
+ assertion = versionAtLeast kernelPackages.kernel.version "4.16";
+ message = "KVMGT is not properly supported for kernels older than 4.16";
+ };
+ boot.kernelParams = [ "i915.enable_gvt=1" ];
+ systemd.services = mapAttrs' (name: value:
+ nameValuePair "kvmgt-${name}" {
+ description = "KVMGT VGPU ${name}";
+ serviceConfig = {
+ Type = "oneshot";
+ RemainAfterExit = true;
+ ExecStart = "${pkgs.runtimeShell} -c 'echo ${value.uuid} > /sys/bus/pci/devices/${cfg.device}/mdev_supported_types/${name}/create'";
+ ExecStop = "${pkgs.runtimeShell} -c 'echo 1 > /sys/bus/pci/devices/${cfg.device}/${value.uuid}/remove'";
+ };
+ wantedBy = [ "multi-user.target" ];
+ }
+ ) cfg.vgpus;
+ };
+
+ meta.maintainers = with maintainers; [ gnidorah ];
+}