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[Xen-changelog] [xen-3.3-testing] x86 shadow: disable fast np path in OO

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Subject: [Xen-changelog] [xen-3.3-testing] x86 shadow: disable fast np path in OOS.
From: "Xen patchbot-3.3-testing" <patchbot-3.3-testing@xxxxxxxxxxxxxxxxxxx>
Date: Mon, 06 Jul 2009 05:50:13 -0700
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# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1246883858 -3600
# Node ID 09c96ee6c787518093ba515479df8a8c20e42520
# Parent  8a944d53764771c42357907f0371047be4521d47
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 8a944d537647 -r 09c96ee6c787 xen/arch/x86/mm/shadow/multi.c
--- a/xen/arch/x86/mm/shadow/multi.c    Mon Jul 06 13:37:18 2009 +0100
+++ b/xen/arch/x86/mm/shadow/multi.c    Mon Jul 06 13:37:38 2009 +0100
@@ -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;
     }

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