[Qemu-devel] [PATCH v4 2/3] KVM: x86: add MSR_IA32_BNDCFGS to msrs_to_save

[Liu, Jinsong]

>From 7d1b41c3fdf71e4c73280e117948102f54f74be7 Mon Sep 17 00:00:00 2001
From: Liu Jinsong <address@hidden>
Date: Sat, 22 Feb 2014 08:10:17 +0800
Subject: [PATCH v4 2/3] KVM: x86: add MSR_IA32_BNDCFGS to msrs_to_save

Add MSR_IA32_BNDCFGS to msrs_to_save, and corresponding logic
to kvm_get/set_msr().

Signed-off-by: Liu Jinsong <address@hidden>
---
 arch/x86/kvm/vmx.c |    6 ++++++
 arch/x86/kvm/x86.c |    2 +-
 2 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 35d285f..2839c2f 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2484,6 +2484,9 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, u32 
msr_index, u64 *pdata)
        case MSR_IA32_SYSENTER_ESP:
                data = vmcs_readl(GUEST_SYSENTER_ESP);
                break;
+       case MSR_IA32_BNDCFGS:
+               data = vmcs_readl(GUEST_BNDCFGS);
+               break;
        case MSR_IA32_FEATURE_CONTROL:
                if (!nested_vmx_allowed(vcpu))
                        return 1;
@@ -2552,6 +2555,9 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, struct 
msr_data *msr_info)
        case MSR_IA32_SYSENTER_ESP:
                vmcs_writel(GUEST_SYSENTER_ESP, data);
                break;
+       case MSR_IA32_BNDCFGS:
+               vmcs_writel(GUEST_BNDCFGS, data);
+               break;
        case MSR_IA32_TSC:
                kvm_write_tsc(vcpu, msr_info);
                break;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 7c52acb..89e4e27 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -882,7 +882,7 @@ static u32 msrs_to_save[] = {
        MSR_CSTAR, MSR_KERNEL_GS_BASE, MSR_SYSCALL_MASK, MSR_LSTAR,
 #endif
        MSR_IA32_TSC, MSR_IA32_CR_PAT, MSR_VM_HSAVE_PA,
-       MSR_IA32_FEATURE_CONTROL
+       MSR_IA32_FEATURE_CONTROL, MSR_IA32_BNDCFGS
 };
 
 static unsigned num_msrs_to_save;
-- 
1.7.1