Patchwork target-i386: bugfix of Intel MPX

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Submitter Liu, Jinsong
Date March 3, 2014, 5:24 a.m.
Message ID <DE8DF0795D48FD4CA783C40EC82923350152FC71@SHSMSX101.ccr.corp.intel.com>
Download mbox | patch
Permalink /patch/325679/
State New
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Comments

Liu, Jinsong - March 3, 2014, 5:24 a.m.
From 3a7783cd9a0556787809d3d5ecb5f2b85dd9fc02 Mon Sep 17 00:00:00 2001
From: Liu Jinsong <jinsong.liu@intel.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@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Asit K Mallick <asit.k.mallick@intel.com>
---
 target-i386/cpu.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
Paolo Bonzini - March 3, 2014, 8:34 a.m.
Il 03/03/2014 06:24, Liu, Jinsong ha scritto:
> From 3a7783cd9a0556787809d3d5ecb5f2b85dd9fc02 Mon Sep 17 00:00:00 2001
> From: Liu Jinsong <jinsong.liu@intel.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@intel.com>
> Cc: H. Peter Anvin <hpa@zytor.com>
> Cc: Asit K Mallick <asit.k.mallick@intel.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)
>

Thanks, applying to uq/master.

Paolo

Patch

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)