diff --git a/kvm.h b/kvm.h
index 25b120c..4cf7549 100644
--- a/kvm.h
+++ b/kvm.h
@@ -120,6 +120,9 @@
 
 int kvm_check_extension(KVMState *s, unsigned int extension);
 
+uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function,
+                                      int reg);
+
 /* generic hooks - to be moved/refactored once there are more users */
 
 static inline void cpu_synchronize_state(CPUState *env, int modified)