stonehenge: install libvirt

hosts/stonehenge/default.nix

@@ -91,6 +91,8 @@
     extraGroups = [
       "networkmanager"
       "wheel"
+      "libvirtd"
+      "kvm"
     ];
     packages = with pkgs; [
       # kdePackages.kate
@@ -102,6 +104,8 @@
 
   virtualisation.virtualbox.host.enable = true;
 
+  virtualisation.libvirtd.enable = true;
+
   # Install firefox.
   programs.firefox.enable = true;
 
@@ -113,8 +117,11 @@
   environment.systemPackages = with pkgs; [
     #  vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
     #  wget
+    dnsmasq
   ];
 
+  networking.firewall.trustedInterfaces = [ "virbr0" ];
+
   # Some programs need SUID wrappers, can be configured further or are
   # started in user sessions.
   # programs.mtr.enable = true;