diff --git a/base.yml b/base.yml
index 0bf1779..2e44e1e 100644
--- a/base.yml
+++ b/base.yml
@@ -1,3 +1,7 @@
+- import_playbook: dyngroups.yml
 - hosts: all
   roles:
   - base
+- hosts: kvm-guest
+  roles:
+  - serial-console
diff --git a/dyngroups.yml b/dyngroups.yml
index a0f8c5b..e0f2ab1 100644
--- a/dyngroups.yml
+++ b/dyngroups.yml
@@ -3,4 +3,10 @@
   tasks:
   - name: group hosts by distribution
     group_by:
-      key={{ ansible_os_family }}
+      key: '{{ ansible_os_family }}'
+    changed_when: false
+  - name: group hosts by virtualization
+    group_by:
+      key: >-
+        {{ ansible_virtualization_type }}-{{ ansible_virtualization_role }}
+    changed_when: false