[PATCH] xen: disable all non-virtual devices

A domU Xen environment has no non-virtual drivers, so make sure
they're all disabled at once.  This noticeably speeds up boot time.

Signed-off-by: Jeremy Fitzhardinge <redacted>
Cc: Rusty Russell <redacted>

diff -r c79da0042c7d arch/i386/xen/setup.c

--- a/arch/i386/xen/setup.c	Tue Jun 05 18:17:30 2007 -0700
+++ b/arch/i386/xen/setup.c	Tue Jun 05 18:17:59 2007 -0700

@@ -93,4 +93,6 @@ void __init xen_arch_setup(void)
 	/* fill cpus_possible with all available cpus */
 	xen_fill_possible_map();
 #endif
+
+	paravirt_disable_iospace();
 }