paravirt: export __supported_pte_mask

__supported_pte_mask is needed when constructing pte values.  Xen
device drivers need to do this to make mappings of foreign pages (ie,
pages granted to us by other domains).

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/i386/mm/init.c b/arch/i386/mm/init.c
index f9b6a8878547..6a68b1ae061c 100644
--- a/arch/i386/mm/init.c
+++ b/arch/i386/mm/init.c
@@ -473,6 +473,7 @@ void zap_low_mappings (void)
 
 static int disable_nx __initdata = 0;
 u64 __supported_pte_mask __read_mostly = ~_PAGE_NX;
+EXPORT_SYMBOL_GPL(__supported_pte_mask);
 
 /*
  * noexec = on|off