x86 shadow: disable fast np path in OOS.

Signed off by: Gianluca Guida <gianluca.guida@eu.citrix.com>
xen-unstable changeset:   19895:83b37290ed5d
xen-unstable date:        Mon Jul 06 11:50:30 2009 +0100

diff --git a/xen/arch/x86/mm/shadow/multi.c b/xen/arch/x86/mm/shadow/multi.c
index d8f9c73f1471a7968af31d5f1eb7972752da0cc9..bd94a36e4e69ad12098d84ead3b51a28858147be 100644 (file)
--- a/xen/arch/x86/mm/shadow/multi.c
+++ b/xen/arch/x86/mm/shadow/multi.c
@@ -791,11 +791,13 @@ _sh_propagate(struct vcpu *v,
 
     if ( unlikely(!(gflags & _PAGE_PRESENT)) )
     {
+#if !(SHADOW_OPTIMIZATIONS & SHOPT_OUT_OF_SYNC)
         /* If a guest l1 entry is not present, shadow with the magic 
          * guest-not-present entry. */
         if ( level == 1 )
             *sp = sh_l1e_gnp();
         else 
+#endif /* !OOS */
             *sp = shadow_l1e_empty();
         goto done;
     }