diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index df2b0556c59b9b079a0d58ba93e088d82aaba3f0..75bce6be3af9afbacfc397d074385773ce610ec1 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -209,6 +209,7 @@ static void ccw_machine_class_init(ObjectClass *oc, void *data)
 
     s390mc->ri_allowed = true;
     s390mc->cpu_model_allowed = true;
+    s390mc->css_migration_enabled = false; /* TODO: set to true */
     mc->init = ccw_init;
     mc->reset = s390_machine_reset;
     mc->hot_add_cpu = s390_hot_add_cpu;
@@ -378,6 +379,11 @@ static const TypeInfo ccw_machine_info = {
     },
 };
 
+bool css_migration_enabled(void)
+{
+    return get_machine_class()->css_migration_enabled;
+}
+
 #define DEFINE_CCW_MACHINE(suffix, verstr, latest)                            \
     static void ccw_machine_##suffix##_class_init(ObjectClass *oc,            \
                                                   void *data)                 \
@@ -484,6 +490,10 @@ static const TypeInfo ccw_machine_info = {
 
 static void ccw_machine_2_10_instance_options(MachineState *machine)
 {
+    /*
+     * TODO Once preparations are done register vmstate for the css if
+     * css_migration_enabled().
+     */
 }
 
 static void ccw_machine_2_10_class_options(MachineClass *mc)
@@ -498,8 +508,11 @@ static void ccw_machine_2_9_instance_options(MachineState *machine)
 
 static void ccw_machine_2_9_class_options(MachineClass *mc)
 {
+    S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc);
+
     ccw_machine_2_10_class_options(mc);
     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_9);
+    s390mc->css_migration_enabled = false;
 }
 DEFINE_CCW_MACHINE(2_9, "2.9", false);
 
diff --git a/include/hw/s390x/s390-virtio-ccw.h b/include/hw/s390x/s390-virtio-ccw.h
index 3027555f6d7084b2a7ae311670815fc08476439e..ab88d49d107a65e9f9300758e6b149bc73340d8a 100644
--- a/include/hw/s390x/s390-virtio-ccw.h
+++ b/include/hw/s390x/s390-virtio-ccw.h
@@ -39,6 +39,7 @@ typedef struct S390CcwMachineClass {
     /*< public >*/
     bool ri_allowed;
     bool cpu_model_allowed;
+    bool css_migration_enabled;
 } S390CcwMachineClass;
 
 /* runtime-instrumentation allowed by the machine */
@@ -46,4 +47,10 @@ bool ri_allowed(void);
 /* cpu model allowed by the machine */
 bool cpu_model_allowed(void);
 
+/**
+ * Returns true if (vmstate based) migration of the channel subsystem
+ * is enabled, false if it is disabled.
+ */
+bool css_migration_enabled(void);
+
 #endif