diff --git a/arch/i386/xen/setup.c b/arch/i386/xen/setup.c
index 3f8684e..2fe6eac 100644
--- a/arch/i386/xen/setup.c
+++ b/arch/i386/xen/setup.c
@@ -91,4 +91,6 @@ void __init xen_arch_setup(void)
 	/* fill cpus_possible with all available cpus */
 	xen_fill_possible_map();
 #endif
+
+	paravirt_disable_iospace();
 }