[PATCH 08/10] KVM: arm/arm64: vgic: Add vgic_{get, set}_phys_irq_active

[eric.auger@linaro.org (Eric Auger)]

Reviewed-by: Eric Auger <eric.auger@linaro.org>
On 06/08/2015 07:04 PM, Marc Zyngier wrote:
> In order to control the active state of an interrupt, introduce
> a pair of accessors allowing the state to be set/queried.
> 
> This only affects the logical state, and the HW state will only be
> applied at world-switch time.
> 
> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
> ---
>  include/kvm/arm_vgic.h |  2 ++
>  virt/kvm/arm/vgic.c    | 12 ++++++++++++
>  2 files changed, 14 insertions(+)
> 
> diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
> index 33d121a..1c653c1 100644
> --- a/include/kvm/arm_vgic.h
> +++ b/include/kvm/arm_vgic.h
> @@ -349,6 +349,8 @@ int kvm_vgic_vcpu_active_irq(struct kvm_vcpu *vcpu);
>  struct irq_phys_map *vgic_map_phys_irq(struct kvm_vcpu *vcpu,
>  				       int virt_irq, int irq);
>  int vgic_unmap_phys_irq(struct kvm_vcpu *vcpu, struct irq_phys_map *map);
> +bool vgic_get_phys_irq_active(struct irq_phys_map *map);
> +void vgic_set_phys_irq_active(struct irq_phys_map *map, bool active);
>  
>  #define irqchip_in_kernel(k)	(!!((k)->arch.vgic.in_kernel))
>  #define vgic_initialized(k)	(!!((k)->arch.vgic.nr_cpus))
> diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
> index 495ac7d..f376b56 100644
> --- a/virt/kvm/arm/vgic.c
> +++ b/virt/kvm/arm/vgic.c
> @@ -1744,6 +1744,18 @@ static struct irq_phys_map *vgic_irq_map_search(struct kvm_vcpu *vcpu,
>  	return this;
>  }
>  
> +bool vgic_get_phys_irq_active(struct irq_phys_map *map)
> +{
> +	BUG_ON(!map);
> +	return map->active;
> +}
> +
> +void vgic_set_phys_irq_active(struct irq_phys_map *map, bool active)
> +{
> +	BUG_ON(!map);
> +	map->active = active;
> +}
> +
>  int vgic_unmap_phys_irq(struct kvm_vcpu *vcpu, struct irq_phys_map *map)
>  {
>  	struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
>