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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2009-08-25 21:53:02 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-08-26 06:10:32 +0200 |
| commit | d560bc61575efae43595cbcb56d0ba3b9450139c (patch) | |
| tree | a8b3c027c473ad0faca22e8a5f1437759c495165 /arch | |
| parent | Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/l... (diff) | |
| download | linux-d560bc61575efae43595cbcb56d0ba3b9450139c.tar.xz linux-d560bc61575efae43595cbcb56d0ba3b9450139c.zip | |
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/xen/enlighten.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index e90540a46a0b..0b755cd7686d 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -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 |