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| author | Andre Przywara <andre.przywara@arm.com> | 2016-04-13 09:03:49 (GMT) |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2016-05-20 13:39:38 (GMT) |
| commit | e262f4193638fff2de458f0c70284f0cb50926a7 (patch) | |
| tree | ccee602ddeb5337a1dc38f49cd659f00f4a07813 /virt | |
| parent | 4f551a3d96a2de85a041ee60e806bda1d5b06255 (diff) | |
| download | linux-e262f4193638fff2de458f0c70284f0cb50926a7.tar.xz | |
KVM: arm/arm64: vgic: avoid map in kvm_vgic_map_is_active()
For getting the active state of a mapped IRQ, we actually only need
the virtual IRQ number, not the pointer to the mapping entry.
Pass the virtual IRQ number from the arch timer to the VGIC directly.
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')
| -rw-r--r-- | virt/kvm/arm/arch_timer.c | 6 | ||||
| -rw-r--r-- | virt/kvm/arm/vgic.c | 6 |
2 files changed, 5 insertions, 7 deletions
diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c index a9c6c1c..37f82c1 100644 --- a/virt/kvm/arm/arch_timer.c +++ b/virt/kvm/arm/arch_timer.c @@ -274,10 +274,8 @@ void kvm_timer_flush_hwstate(struct kvm_vcpu *vcpu) * to ensure that hardware interrupts from the timer triggers a guest * exit. */ - if (timer->irq.level || kvm_vgic_map_is_active(vcpu, timer->map)) - phys_active = true; - else - phys_active = false; + phys_active = timer->irq.level || + kvm_vgic_map_is_active(vcpu, timer->map->virt_irq); /* * We want to avoid hitting the (re)distributor as much as diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c index 81c557c..2fd43a6 100644 --- a/virt/kvm/arm/vgic.c +++ b/virt/kvm/arm/vgic.c @@ -1102,18 +1102,18 @@ static bool dist_active_irq(struct kvm_vcpu *vcpu) return test_bit(vcpu->vcpu_id, dist->irq_active_on_cpu); } -bool kvm_vgic_map_is_active(struct kvm_vcpu *vcpu, struct irq_phys_map *map) +bool kvm_vgic_map_is_active(struct kvm_vcpu *vcpu, unsigned int virt_irq) { int i; for (i = 0; i < vcpu->arch.vgic_cpu.nr_lr; i++) { struct vgic_lr vlr = vgic_get_lr(vcpu, i); - if (vlr.irq == map->virt_irq && vlr.state & LR_STATE_ACTIVE) + if (vlr.irq == virt_irq && vlr.state & LR_STATE_ACTIVE) return true; } - return vgic_irq_is_active(vcpu, map->virt_irq); + return vgic_irq_is_active(vcpu, virt_irq); } /* |