$NetBSD: patch-ae,v 1.1 2004/11/28 11:26:44 hira Exp $

--- io_cpu.h.orig	2004-11-28 20:10:23.000000000 +0900
+++ io_cpu.h	2004-11-28 20:10:52.000000000 +0900
@@ -21,6 +21,9 @@
 #include "machine/sysarch.h"
 #define   SET_IOPL()	i386_iopl(1)
 #define RESET_IOPL()	i386_iopl(0)
+# ifdef __amd64__
+#  define i386_iopl x86_64_iopl
+# endif
 
 #else					/* FreeBSD */
 extern int iofl;