gitea repo

hosts/desk/kvm.nix

@@ -0,0 +1,43 @@
+{ config, lib, pkgs, ... }: {
+
+  environment.systemPackages = with pkgs; [ virt-manager ];
+  
+  virtualisation.libvirtd = {
+    enable = true;
+    qemu.ovmf.enable = true;
+    qemu.runAsRoot = false;
+    onBoot = "ignore";
+    onShutdown = "shutdown";
+    qemu.vhostUserPackages = with pkgs; [ virtiofsd ];   
+    hooks.qemu."qemu-hooks" = pkgs.writeShellScript "qemu-hooks" ''
+      export PATH="${lib.makeBinPath [ 
+          pkgs.bash 
+          pkgs.xorg.xset 
+          pkgs.coreutils
+          pkgs.util-linux
+          pkgs.i3
+          pkgs.xorg.xrandr
+          pkgs.ddcutil
+        ]}:''$PATH"
+      ${builtins.readFile ../../dotfiles/qemu/qemu-hooks }
+    '';
+  };
+
+  virtualisation.spiceUSBRedirection.enable = true;
+  programs.virt-manager.enable = true;
+  users.groups.libvirtd.members = [ "${config.user}" ];
+  
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+  boot.kernelParams = [ "amd_iommu=on" "pcie_aspm=off" ];
+  boot.kernelModules = [ "kvm-amd" ];
+
+  boot.initrd.availableKernelModules = [ "amdgpu" "vfio-pci" ];
+  boot.initrd.preDeviceCommands = ''
+    DEVS="0000:06:00.0 0000:06:00.1"
+    for DEV in $DEVS; do
+      echo "vfio-pci" > /sys/bus/pci/devices/$DEV/driver_override
+    done
+    modprobe -i vfio-pci
+  '';
+}
+