[Xen-devel] [PATCH 2/3] X86: MPX support for PV guest

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

From 56d4b02f595c75b3884b36e54c880ec7019680bc Mon Sep 17 00:00:00 2001
From: Liu Jinsong <jinsong.liu@xxxxxxxxx>
Date: Fri, 8 Nov 2013 01:40:59 +0800
Subject: [PATCH 2/3] X86: MPX support for PV guest

Signed-off-by: Xudong Hao <xudong.hao@xxxxxxxxx>
Acked-by: Liu Jinsong <jinsong.liu@xxxxxxxxx>

---
 tools/libxc/xc_cpuid_x86.c |    3 ++-
 xen/arch/x86/traps.c       |    3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/libxc/xc_cpuid_x86.c b/tools/libxc/xc_cpuid_x86.c
index bcb7a59..4c922a8 100644
--- a/tools/libxc/xc_cpuid_x86.c
+++ b/tools/libxc/xc_cpuid_x86.c
@@ -504,7 +504,8 @@ static void xc_cpuid_pv_policy(
                         bitmaskof(X86_FEATURE_BMI2) |
                         bitmaskof(X86_FEATURE_ERMS) |
                         bitmaskof(X86_FEATURE_RTM)  |
-                        bitmaskof(X86_FEATURE_FSGSBASE));
+                        bitmaskof(X86_FEATURE_FSGSBASE) |
+                        bitmaskof(X86_FEATURE_MPX));
         else
             regs[1] = 0;
         regs[0] = regs[2] = regs[3] = 0;
diff --git a/xen/arch/x86/traps.c b/xen/arch/x86/traps.c
index 77c200b..4ecf7d5 100644
--- a/xen/arch/x86/traps.c
+++ b/xen/arch/x86/traps.c
@@ -826,7 +826,8 @@ static void pv_cpuid(struct cpu_user_regs *regs)
                   cpufeat_mask(X86_FEATURE_BMI2) |
                   cpufeat_mask(X86_FEATURE_ERMS) |
                   cpufeat_mask(X86_FEATURE_RTM)  |
-                  cpufeat_mask(X86_FEATURE_FSGSBASE));
+                  cpufeat_mask(X86_FEATURE_FSGSBASE) |
+                  cpufeat_mask(X86_FEATURE_MPX));
         else
             b = 0;
         a = c = d = 0;
-- 
1.7.1

Attachment: 0002-X86-MPX-support-for-PV-guest.patch
Description: 0002-X86-MPX-support-for-PV-guest.patch

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