[Xen-devel] [PATCH 5/5] X86: enable MPX feature to HVM guest

["Liu, Jinsong" <jinsong.liu@xxxxxxxxx>]

From 9d0248fddf86c96efcb16963f0842927cb5c23c0 Mon Sep 17 00:00:00 2001
From: Liu Jinsong <jinsong.liu@xxxxxxxxx>
Date: Tue, 19 Nov 2013 18:48:20 +0800
Subject: [PATCH 5/5] X86: enable MPX feature to HVM guest

Signed-off-by: Xudong Hao <xudong.hao@xxxxxxxxx>
Reviewed-by: Liu Jinsong <jinsong.liu@xxxxxxxxx>
---
 xen/arch/x86/xstate.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/xen/arch/x86/xstate.c b/xen/arch/x86/xstate.c
index 1fd43c9..2bc9b60 100644
--- a/xen/arch/x86/xstate.c
+++ b/xen/arch/x86/xstate.c
@@ -373,6 +373,7 @@ int handle_xsetbv(u32 index, u64 new_bv)
     mask = new_bv & ~curr->arch.xcr0_accum;
     curr->arch.xcr0 = new_bv;
     curr->arch.xcr0_accum |= new_bv;
+    curr->arch.nonlazy_xstate_used = !!(curr->arch.xcr0 & XSTATE_NONLAZY);
 
     mask &= curr->fpu_dirtied ? ~XSTATE_FP_SSE : XSTATE_NONLAZY;
     if ( mask )
-- 
1.7.1

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