mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-05 18:39:59 +00:00
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>
This commit is contained in:
parent
9c93768866
commit
d560bc6157
1 changed files with 1 additions and 0 deletions
|
@ -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
|
||||
|
||||
|
|
Loading…
Reference in a new issue