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authorAndre Przywara <andre.przywara@arm.com>2016-04-13 10:04:06 +0100
committerChristoffer Dall <christoffer.dall@linaro.org>2016-05-20 15:39:38 +0200
commit63306c28ac92bdf9e41aef367708d762f9f725f2 (patch)
tree1140f90b5d86d20ccfb19fe9fae5e93a6df457d5 /virt/kvm/arm
parente262f4193638fff2de458f0c70284f0cb50926a7 (diff)
downloadlinux-stericsson-63306c28ac92bdf9e41aef367708d762f9f725f2.tar.gz
KVM: arm/arm64: vgic: avoid map in kvm_vgic_unmap_phys_irq()
kvm_vgic_unmap_phys_irq() only needs the virtual IRQ number, so let's just pass that between the arch timer and the VGIC to get rid of the irq_phys_map pointer. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Eric Auger <eric.auger@linaro.org> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'virt/kvm/arm')
-rw-r--r--virt/kvm/arm/arch_timer.c2
-rw-r--r--virt/kvm/arm/vgic.c11
2 files changed, 5 insertions, 8 deletions
diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c
index 37f82c1c6bb7..962b442d0d77 100644
--- a/virt/kvm/arm/arch_timer.c
+++ b/virt/kvm/arm/arch_timer.c
@@ -486,7 +486,7 @@ void kvm_timer_vcpu_terminate(struct kvm_vcpu *vcpu)
timer_disarm(timer);
if (timer->map)
- kvm_vgic_unmap_phys_irq(vcpu, timer->map);
+ kvm_vgic_unmap_phys_irq(vcpu, timer->map->virt_irq);
}
void kvm_timer_enable(struct kvm *kvm)
diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index 2fd43a6146a9..06abd59dcbe3 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -1812,25 +1812,22 @@ static void vgic_free_phys_irq_map_rcu(struct rcu_head *rcu)
/**
* 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
+ * @virt_irq: The virtual IRQ number to be unmapped
*
* Remove an existing mapping between virtual and physical interrupts.
*/
-int kvm_vgic_unmap_phys_irq(struct kvm_vcpu *vcpu, struct irq_phys_map *map)
+int kvm_vgic_unmap_phys_irq(struct kvm_vcpu *vcpu, unsigned int virt_irq)
{
struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
struct irq_phys_map_entry *entry;
struct list_head *root;
- if (!map)
- return -EINVAL;
-
- root = vgic_get_irq_phys_map_list(vcpu, map->virt_irq);
+ root = vgic_get_irq_phys_map_list(vcpu, virt_irq);
spin_lock(&dist->irq_phys_map_lock);
list_for_each_entry(entry, root, entry) {
- if (&entry->map == map) {
+ if (entry->map.virt_irq == virt_irq) {
list_del_rcu(&entry->entry);
call_rcu(&entry->rcu, vgic_free_phys_irq_map_rcu);
break;