feat: vfio

hosts/nullstar/config.nix

@@ -8,6 +8,10 @@
       (inputs.nixos-hardware.nixosModules.framework-16-7040-amd)
     ];
 
+  specialisation."VFIO".configuration = {
+    imports = [ ./vfio.nix ];
+  };
+
   services.fwupd.enable = true;
 
   networking.hostName = "nullstar";

hosts/nullstar/vfio.nix

@@ -0,0 +1,23 @@
+{ config, pkgs, ... }:
+
+{
+  boot.kernelParams = [
+    "amd_iommu=on"
+    "iommu=pt"
+    "vfio-pci.ids=1002:7480,1002:ab30"
+  ];
+
+  boot.initrd.kernelModules = [
+    "vfio"
+    "vfio_pci"
+    "vfio_iommu_type1"
+  ];
+
+  systemd.tmpfiles.rules = [
+    "f /dev/shm/looking-glass 0660 xory qemu-libvirtd -"
+  ];
+
+  environment.systemPackages = with pkgs; [
+    looking-glass-client
+  ];
+}