From: Ștefan Șicleru <ssicl...@bitdefender.com>

This function is needed for the KVMI_VCPU_DISABLE_VE command.

Signed-off-by: Ștefan Șicleru <ssicl...@bitdefender.com>
Signed-off-by: Adalbert Lazăr <ala...@bitdefender.com>
---
 arch/x86/include/asm/kvm_host.h |  1 +
 arch/x86/kvm/vmx/vmx.c          | 10 ++++++++++
 2 files changed, 11 insertions(+)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 4cee641af48e..54969c2e804e 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1316,6 +1316,7 @@ struct kvm_x86_ops {
        int (*control_ept_view)(struct kvm_vcpu *vcpu, u16 view, u8 visible);
        int (*set_ve_info)(struct kvm_vcpu *vcpu, unsigned long ve_info,
                                bool trigger_vmexit);
+       int (*disable_ve)(struct kvm_vcpu *vcpu);
 };
 
 struct kvm_x86_nested_ops {
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 871cc49063d8..96aa4b7e2857 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -4464,6 +4464,15 @@ static int vmx_set_ve_info(struct kvm_vcpu *vcpu, 
unsigned long ve_info,
        return 0;
 }
 
+static int vmx_disable_ve(struct kvm_vcpu *vcpu)
+{
+       if (kvm_ve_supported)
+               secondary_exec_controls_clearbit(to_vmx(vcpu),
+                                                SECONDARY_EXEC_EPT_VE);
+
+       return 0;
+}
+
 #define VMX_XSS_EXIT_BITMAP 0
 
 /*
@@ -8390,6 +8399,7 @@ static struct kvm_x86_ops vmx_x86_ops __initdata = {
        .set_ept_view = vmx_set_ept_view,
        .control_ept_view = vmx_control_ept_view,
        .set_ve_info = vmx_set_ve_info,
+       .disable_ve = vmx_disable_ve,
 };
 
 static __init int hardware_setup(void)
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