diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 09ea61d..73642e9 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -95,7 +95,7 @@
 static void __cpuinit cpu_bringup_and_idle(void)
 {
 	cpu_bringup();
-	cpu_idle();
+	cpu_startup_entry(CPUHP_ONLINE);
 }
 
 static int xen_smp_intr_init(unsigned int cpu)