diff --git a/libvirt/manifests/init.pp b/libvirt/manifests/init.pp
index 348efda..ed32a6d 100644
--- a/libvirt/manifests/init.pp
+++ b/libvirt/manifests/init.pp
@@ -28,6 +28,16 @@ class libvirt::client {
 }
 
 
+# Configure libvirt guest.
+#
+class libvirt::guest {
+
+    Libvirt::Facts <<| title == $::homename |>>
+    Libvirt::Facts <<| title == $::hostname |>>
+
+}
+
+
 # Install and configure KVM and libvirtd.
 #
 # === Global variables
@@ -129,4 +139,34 @@ class libvirt::kvm inherits libvirt::client {
         subscribe => $iptables,
     }
 
+    if $::libvirt_activedomains {
+        $domains = split($::libvirt_activedomains, ',')
+        @@libvirt::facts { $domains:
+            host => $::homename,
+        }
+    }
+
+}
+
+
+# Set libvirt external facts.
+#
+# === Parameters
+#
+#   $host:
+#       libvirt host name.
+#
+define libvirt::facts($host) {
+
+    file { "/etc/facter/facts.d/libvirt.txt":
+        ensure  => present,
+        mode    => "0644",
+        owner   => "root",
+        group   => $::operatingsystem ? {
+            "openbsd" => "wheel",
+            default   => "root",
+        },
+        content => "libvirt_host=${host}\n",
+    }
+
 }