[PATCH 6/7] KVM: arm/arm64: remove irq_phys_map from the arch timer

[Andre Przywara]

Now that the interface between the arch timer and the VGIC does not
require passing the irq_phys_map entry pointer anymore, let's remove
it from the virtual arch timer and use the virtual IRQ number instead
directly.
The remaining pointer returned by kvm_vgic_map_phys_irq() will be
removed in the following patch.

Signed-off-by: Andre Przywara <andre.przywara at arm.com>
---
 include/kvm/arm_arch_timer.h |  4 ++--
 virt/kvm/arm/arch_timer.c    | 12 ++++++------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/include/kvm/arm_arch_timer.h b/include/kvm/arm_arch_timer.h
index b651aed..1ed70f6 100644
--- a/include/kvm/arm_arch_timer.h
+++ b/include/kvm/arm_arch_timer.h
@@ -53,8 +53,8 @@ struct arch_timer_cpu {
 	/* Timer IRQ */
 	struct kvm_irq_level		irq;
 
-	/* VGIC mapping */
-	struct irq_phys_map		*map;
+	/* The virtual IRQ number */
+	unsigned int			virt_irq;
 
 	/* Active IRQ state caching */
 	bool				active_cleared_last;
diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c
index cfdf88f..1598e23 100644
--- a/virt/kvm/arm/arch_timer.c
+++ b/virt/kvm/arm/arch_timer.c
@@ -137,10 +137,10 @@ static void kvm_timer_update_irq(struct kvm_vcpu *vcpu, bool new_level)
 
 	timer->active_cleared_last = false;
 	timer->irq.level = new_level;
-	trace_kvm_timer_update_irq(vcpu->vcpu_id, timer->map->virt_irq,
+	trace_kvm_timer_update_irq(vcpu->vcpu_id, timer->virt_irq,
 				   timer->irq.level);
 	ret = kvm_vgic_inject_mapped_irq(vcpu->kvm, vcpu->vcpu_id,
-					 timer->map->virt_irq,
+					 timer->virt_irq,
 					 timer->irq.level);
 	WARN_ON(ret);
 }
@@ -246,7 +246,7 @@ void kvm_timer_flush_hwstate(struct kvm_vcpu *vcpu)
 	* to ensure that hardware interrupts from the timer triggers a guest
 	* exit.
 	*/
-	if (timer->irq.level || kvm_vgic_map_is_active(vcpu, timer->map->virt_irq))
+	if (timer->irq.level || kvm_vgic_map_is_active(vcpu, timer->virt_irq))
 		phys_active = true;
 	else
 		phys_active = false;
@@ -351,7 +351,7 @@ int kvm_timer_vcpu_reset(struct kvm_vcpu *vcpu,
 	if (WARN_ON(IS_ERR(map)))
 		return PTR_ERR(map);
 
-	timer->map = map;
+	timer->virt_irq = irq->irq;
 	return 0;
 }
 
@@ -494,8 +494,8 @@ void kvm_timer_vcpu_terminate(struct kvm_vcpu *vcpu)
 	struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu;
 
 	timer_disarm(timer);
-	if (timer->map)
-		kvm_vgic_unmap_phys_irq(vcpu, timer->map->virt_irq);
+	if (timer->virt_irq)
+		kvm_vgic_unmap_phys_irq(vcpu, timer->virt_irq);
 }
 
 void kvm_timer_enable(struct kvm *kvm)
-- 
2.7.3