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KVM: arm/arm64: vgic: restructure kvm_vgic_(un)map_phys_irq

Forráskód böngészése 
We want to reuse the core of the map/unmap functions for IRQ
forwarding. Let's move the computation of the hwirq in
kvm_vgic_map_phys_irq and pass the linux IRQ as parameter.
the host_irq is added to struct vgic_irq.

We introduce kvm_vgic_map/unmap_irq which take a struct vgic_irq
handle as a parameter.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
This commit is contained in:
Eric Auger
2017-10-27 15:28:32 +01:00
committed by Christoffer Dall
szülő 2412405b31
commit 47bbd31f74
3 fájl változott, egészen pontosan 51 új sor hozzáadva és 41 régi sor törölve
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24
virt/kvm/arm/arch_timer.c
Fájl megtekintése

@@ -817,9 +817,6 @@ int kvm_timer_enable(struct kvm_vcpu *vcpu)
{
struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu;
struct arch_timer_context *vtimer = vcpu_vtimer(vcpu);
struct irq_desc *desc;
struct irq_data *data;
int phys_irq;
int ret;
if (timer->enabled)
@@ -837,26 +834,7 @@ int kvm_timer_enable(struct kvm_vcpu *vcpu)
return -EINVAL;
}
/*
* Find the physical IRQ number corresponding to the host_vtimer_irq
*/
desc = irq_to_desc(host_vtimer_irq);
if (!desc) {
kvm_err("%s: no interrupt descriptor\n", __func__);
return -EINVAL;
}
data = irq_desc_get_irq_data(desc);
while (data->parent_data)
data = data->parent_data;
phys_irq = data->hwirq;
/*
* Tell the VGIC that the virtual interrupt is tied to a
* physical interrupt. We do that once per VCPU.
*/
ret = kvm_vgic_map_phys_irq(vcpu, vtimer->irq.irq, phys_irq);
ret = kvm_vgic_map_phys_irq(vcpu, host_vtimer_irq, vtimer->irq.irq);
if (ret)
return ret;