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

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Subject:	[Xen-changelog] [xen-unstable] x86 shadow: disable fast np path in OOS.
From:	Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>
Date:	Mon, 06 Jul 2009 05:45:38 -0700
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# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1246877430 -3600
# Node ID 83b37290ed5d10d955ebb3ead0b70e0d00b21e8b
# Parent  3a5d8601293c95f7d783fef3a5f8282fd68603f2
x86 shadow: disable fast np path in OOS.

Signed off by: Gianluca Guida <gianluca.guida@xxxxxxxxxxxxx>
---
 xen/arch/x86/mm/shadow/multi.c |    2 ++
 1 files changed, 2 insertions(+)

diff -r 3a5d8601293c -r 83b37290ed5d xen/arch/x86/mm/shadow/multi.c
--- a/xen/arch/x86/mm/shadow/multi.c    Mon Jul 06 11:49:56 2009 +0100
+++ b/xen/arch/x86/mm/shadow/multi.c    Mon Jul 06 11:50:30 2009 +0100
@@ -494,11 +494,13 @@ _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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