[Xen-changelog] [xen-3.4-testing] x86 shadow: disable fast np path in OOS.

["Xen patchbot-3.4-testing" <patchbot-3.4-testing@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1246883178 -3600
# Node ID 0e999fce216f71de02f64dcc1c186e84cb614c02
# Parent  e31633d67611a17269bdf4184ec16d8a9c52d9ef
x86 shadow: disable fast np path in OOS.

Signed off by: Gianluca Guida <gianluca.guida@xxxxxxxxxxxxx>
xen-unstable changeset:   19895:83b37290ed5d
xen-unstable date:        Mon Jul 06 11:50:30 2009 +0100
---
 xen/arch/x86/mm/shadow/multi.c |    2 ++
 1 files changed, 2 insertions(+)

diff -r e31633d67611 -r 0e999fce216f xen/arch/x86/mm/shadow/multi.c
--- a/xen/arch/x86/mm/shadow/multi.c    Mon Jul 06 13:25:53 2009 +0100
+++ b/xen/arch/x86/mm/shadow/multi.c    Mon Jul 06 13:26:18 2009 +0100
@@ -493,11 +493,13 @@ _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;
     }

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