KVM: arm/arm64: Move phys_timer_emulate function

We are about to call phys_timer_emulate() from kvm_timer_update_state()
and modify phys_timer_emulate() at the same time.  Moving the function
and modifying it in a single patch makes the diff hard to read, so do
this separately first.

No functional change.

Signed-off-by: Christoffer Dall <cdall@linaro.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>

virt/kvm/arm/arch_timer.c

@@ -255,6 +255,22 @@ static void kvm_timer_update_irq(struct kvm_vcpu *vcpu, bool new_level,
 	}
 }
 
+/* Schedule the background timer for the emulated timer. */
+static void phys_timer_emulate(struct kvm_vcpu *vcpu,
+			      struct arch_timer_context *timer_ctx)
+{
+	struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu;
+
+	if (kvm_timer_should_fire(timer_ctx))
+		return;
+
+	if (!kvm_timer_irq_can_fire(timer_ctx))
+		return;
+
+	/*  The timer has not yet expired, schedule a background timer */
+	soft_timer_start(&timer->phys_timer, kvm_timer_compute_delta(timer_ctx));
+}
+
 /*
  * Check if there was a change in the timer state (should we raise or lower
  * the line level to the GIC).
@@ -281,22 +297,6 @@ static void kvm_timer_update_state(struct kvm_vcpu *vcpu)
 		kvm_timer_update_irq(vcpu, !ptimer->irq.level, ptimer);
 }
 
-/* Schedule the background timer for the emulated timer. */
-static void phys_timer_emulate(struct kvm_vcpu *vcpu,
-			      struct arch_timer_context *timer_ctx)
-{
-	struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu;
-
-	if (kvm_timer_should_fire(timer_ctx))
-		return;
-
-	if (!kvm_timer_irq_can_fire(timer_ctx))
-		return;
-
-	/*  The timer has not yet expired, schedule a background timer */
-	soft_timer_start(&timer->phys_timer, kvm_timer_compute_delta(timer_ctx));
-}
-
 static void vtimer_save_state(struct kvm_vcpu *vcpu)
 {
 	struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu;