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. Acked-by: Christoffer Dall <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> --- include/kvm/arm_vgic.h | 2 ++ virt/kvm/arm/vgic.c | 24 ++++++++++++++++++++++++ 2 files changed, 26 insertions(+) diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h index 68212a1..7306b4b 100644 --- a/include/kvm/arm_vgic.h +++ b/include/kvm/arm_vgic.h @@ -357,6 +357,8 @@ int kvm_vgic_vcpu_active_irq(struct kvm_vcpu *vcpu); struct irq_phys_map *kvm_vgic_map_phys_irq(struct kvm_vcpu *vcpu, int virt_irq, int irq); int kvm_vgic_unmap_phys_irq(struct kvm_vcpu *vcpu, struct irq_phys_map *map); +bool kvm_vgic_get_phys_irq_active(struct irq_phys_map *map); +void kvm_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 6422b0c..3f7b690 100644 --- a/virt/kvm/arm/vgic.c +++ b/virt/kvm/arm/vgic.c @@ -1778,6 +1778,30 @@ static void vgic_free_phys_irq_map_rcu(struct rcu_head *rcu) } /** + * kvm_vgic_get_phys_irq_active - Return the active state of a mapped IRQ + * + * Return the logical active state of a mapped interrupt. This doesn't + * necessarily reflects the current HW state. + */ +bool kvm_vgic_get_phys_irq_active(struct irq_phys_map *map) +{ + BUG_ON(!map); + return map->active; +} + +/** + * kvm_vgic_set_phys_irq_active - Set the active state of a mapped IRQ + * + * Set the logical active state of a mapped interrupt. This doesn't + * immediately affects the HW state. + */ +void kvm_vgic_set_phys_irq_active(struct irq_phys_map *map, bool active) +{ + BUG_ON(!map); + map->active = active; +} + +/** * kvm_vgic_unmap_phys_irq - Remove a virtual to physical IRQ mapping * @vcpu: The VCPU pointer * @map: The pointer to a mapping obtained through kvm_vgic_map_phys_irq -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
