aboutsummaryrefslogtreecommitdiff
path: root/arch/x86/xen/enlighten.c
diff options
context:
space:
mode:
authorJan Kara <jack@suse.cz>2008-06-24 11:43:00 +0200
committerJan Kara <jack@suse.cz>2008-06-24 11:43:00 +0200
commit19fd426a18b48a0446ba4b54ac66264916dcb7f3 (patch)
treeb9e0f2bc35e746c14f5e5e5519ed79f1eb4b0f98 /arch/x86/xen/enlighten.c
parente8183c2452041326c95258ecc7865b6fcd91c730 (diff)
parent62786b9e81a2dbe9c073a2ade52d33a2627d6d85 (diff)
Merge branch 'master' into for_mm
Diffstat (limited to 'arch/x86/xen/enlighten.c')
-rw-r--r--arch/x86/xen/enlighten.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index c8a56e457d6..c048de34d6a 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1228,6 +1228,11 @@ asmlinkage void __init xen_start_kernel(void)
if (xen_feature(XENFEAT_supervisor_mode_kernel))
pv_info.kernel_rpl = 0;
+ /* Prevent unwanted bits from being set in PTEs. */
+ __supported_pte_mask &= ~_PAGE_GLOBAL;
+ if (!is_initial_xendomain())
+ __supported_pte_mask &= ~(_PAGE_PWT | _PAGE_PCD);
+
/* set the limit of our address space */
xen_reserve_top();