diff options
| author | Marc Zyngier <marc.zyngier@arm.com> | 2015-06-08 16:13:30 +0100 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2015-08-12 11:28:26 +0100 |
| commit | 6e84e0e0677281b4e7fc634c7e9d085fbcf41b10 (patch) | |
| tree | 8d1708365fb784ea8466703efabf6628bd0bc16b | |
| parent | 08fd6461e8752d2db233c1f237fa5771bcefc63f (diff) | |
| download | linux-6e84e0e0677281b4e7fc634c7e9d085fbcf41b10.tar.bz2 | |
KVM: arm/arm64: vgic: Add vgic_{get,set}_phys_irq_active
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 <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
| -rw-r--r-- | include/kvm/arm_vgic.h | 2 | ||||
| -rw-r--r-- | virt/kvm/arm/vgic.c | 24 |
2 files changed, 26 insertions, 0 deletions
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h index c0e6354bcd06..e789e4721139 100644 --- a/include/kvm/arm_vgic.h +++ b/include/kvm/arm_vgic.h @@ -356,6 +356,8 @@ 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 9d009d2f92f8..b553a8fa6430 100644 --- a/virt/kvm/arm/vgic.c +++ b/virt/kvm/arm/vgic.c @@ -1802,6 +1802,30 @@ 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 |