From: Ladi Prosek <lprosek@redhat.com>
Date: Wed, 21 Jun 2017 09:06:57 +0200
Subject: KVM: SVM: introduce disable_nmi_singlestep helper
Git-commit: 4aebd0e9ca3776368813239018287021002b8973
Patch-mainline: v4.13-rc1
References: fate#323405

Just moving the code to a new helper in preparation for following
commits.

Signed-off-by: Ladi Prosek <lprosek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Joerg Roedel <jroedel@suse.de>
---
 arch/x86/kvm/svm.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -968,6 +968,14 @@ static void svm_disable_lbrv(struct vcpu
 	set_msr_interception(msrpm, MSR_IA32_LASTINTTOIP, 0, 0);
 }
 
+static void disable_nmi_singlestep(struct vcpu_svm *svm)
+{
+	svm->nmi_singlestep = false;
+	if (!(svm->vcpu.guest_debug & KVM_GUESTDBG_SINGLESTEP))
+		svm->vmcb->save.rflags &=
+			~(X86_EFLAGS_TF | X86_EFLAGS_RF);
+}
+
 /* Note:
  * This hash table is used to map VM_ID to a struct kvm_arch,
  * when handling AMD IOMMU GALOG notification to schedule in
@@ -2131,10 +2139,7 @@ static int db_interception(struct vcpu_s
 	}
 
 	if (svm->nmi_singlestep) {
-		svm->nmi_singlestep = false;
-		if (!(svm->vcpu.guest_debug & KVM_GUESTDBG_SINGLESTEP))
-			svm->vmcb->save.rflags &=
-				~(X86_EFLAGS_TF | X86_EFLAGS_RF);
+		disable_nmi_singlestep(svm);
 	}
 
 	if (svm->vcpu.guest_debug &