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xen: mask out PWT too 

The hypervisor doesn't allow PCD or PWT to be set on guest ptes, so
make sure they're masked out.  Also, fix up some previous mispatching.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Jeremy Fitzhardinge 2008-01-30 13:32:58 +01:00 committed by Ingo Molnar
parent 4891645e76
commit 015c8dd0cb
1 changed files with 1 additions and 1 deletions
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arch/x86/xen/mmu.c
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@ -291,7 +291,7 @@ pte_t xen_make_pte(unsigned long pte)
if (pte & _PAGE_PRESENT)
pte = phys_to_machine(XPADDR(pte)).maddr;
pte &= ~_PAGE_PCD;
pte &= ~(_PAGE_PCD | _PAGE_PWT);
return (pte_t){ pte };
}