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authorJeremy Fitzhardinge <jeremy@goop.org>2008-01-30 13:32:58 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 13:32:58 +0100
commit015c8dd0cb3b380cb4c3930968250c719d1dd303 (patch)
treee3a48752b262cc713bc57d780760c743e0146a80 /arch/x86/xen
parent4891645e764d2e181b834509a689fcd12e890c10 (diff)
downloadop-kernel-dev-015c8dd0cb3b380cb4c3930968250c719d1dd303.zip
op-kernel-dev-015c8dd0cb3b380cb4c3930968250c719d1dd303.tar.gz
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>
Diffstat (limited to 'arch/x86/xen')
-rw-r--r--arch/x86/xen/mmu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 52f3928..3e9e095 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -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 };
}
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