linux-kernel - [PATCH] target-i386: bugfix of Intel MPX

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Date:	Mon, 3 Mar 2014 05:24:14 +0000
From:	"Liu, Jinsong" <jinsong.liu@...el.com>
To:	Paolo Bonzini <pbonzini@...hat.com>,
	"'qemu-devel@...gnu.org'" <qemu-devel@...gnu.org>,
	"'kvm@...r.kernel.org'" <kvm@...r.kernel.org>,
	"'linux-kernel@...r.kernel.org'" <linux-kernel@...r.kernel.org>
CC:	"'hpa@...or.com'" <hpa@...or.com>,
	"Mallick, Asit K" <asit.k.mallick@...el.com>,
	"'gleb@...hat.com'" <gleb@...hat.com>
Subject: [PATCH] target-i386: bugfix of Intel MPX

>From 3a7783cd9a0556787809d3d5ecb5f2b85dd9fc02 Mon Sep 17 00:00:00 2001
From: Liu Jinsong <jinsong.liu@...el.com>
Date: Mon, 3 Mar 2014 18:56:39 +0800
Subject: [PATCH] target-i386: bugfix of Intel MPX

The correct size of cpuid 0x0d sub-leaf 4 is 0x40, not 0x10.
This is confirmed by Anvin H Peter and Mallick Asit K.

Signed-off-by: Liu Jinsong <jinsong.liu@...el.com>
Cc: H. Peter Anvin <hpa@...or.com>
Cc: Asit K Mallick <asit.k.mallick@...el.com>
---
 target-i386/cpu.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 0e8812a..9f69d7e 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -339,7 +339,7 @@ static const ExtSaveArea ext_save_areas[] = {
     [3] = { .feature = FEAT_7_0_EBX, .bits = CPUID_7_0_EBX_MPX,
             .offset = 0x3c0, .size = 0x40  },
     [4] = { .feature = FEAT_7_0_EBX, .bits = CPUID_7_0_EBX_MPX,
-            .offset = 0x400, .size = 0x10  },
+            .offset = 0x400, .size = 0x40  },
 };
 
 const char *get_register_name_32(unsigned int reg)
-- 
1.7.1
--
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