diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index 0b511906e3..7ee3202634 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -2173,6 +2173,7 @@ int kvm_arch_init(MachineState *ms, KVMState *s)
     }
 
     if (kvm_check_extension(s, KVM_CAP_X86_SMM) &&
+        object_dynamic_cast(OBJECT(ms), TYPE_X86_MACHINE) &&
         x86_machine_is_smm_enabled(X86_MACHINE(ms))) {
         smram_machine_done.notify = register_smram_listener;
         qemu_add_machine_init_done_notifier(&smram_machine_done);