Commit d560bc61 authored Aug 25, 2009 by Jeremy Fitzhardinge Committed by H. Peter Anvin Aug 25, 2009

x86, xen: Suppress WP test on Xen



Xen always runs on CPUs which properly support WP enforcement in
privileged mode, so there's no need to test for it.

This also works around a crash reported by Arnd Hannemann, though I
think its just a band-aid for that case.

Reported-by: Arnd Hannemann <hannemann@nets.rwth-aachen.de>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

parent 9c937688

arch/x86/xen/enlighten.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1059,6 +1059,7 @@ asmlinkage void __init xen_start_kernel(void)
		/* set up basic CPUID stuff */
		cpu_detect(&new_cpu_data);
		new_cpu_data.hard_math = 1;
		new_cpu_data.wp_works_ok = 1;
		new_cpu_data.x86_capability[0] = cpuid_edx(1);
		#endif