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path: root/arch/arm64/kvm/vgic/vgic-its.c
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Diffstat (limited to 'arch/arm64/kvm/vgic/vgic-its.c')
-rw-r--r--arch/arm64/kvm/vgic/vgic-its.c56
1 files changed, 28 insertions, 28 deletions
diff --git a/arch/arm64/kvm/vgic/vgic-its.c b/arch/arm64/kvm/vgic/vgic-its.c
index 569f9da9049f..534049c7c94b 100644
--- a/arch/arm64/kvm/vgic/vgic-its.c
+++ b/arch/arm64/kvm/vgic/vgic-its.c
@@ -306,39 +306,34 @@ static int update_lpi_config(struct kvm *kvm, struct vgic_irq *irq,
}
}
- raw_spin_unlock_irqrestore(&irq->irq_lock, flags);
-
if (irq->hw)
- return its_prop_update_vlpi(irq->host_irq, prop, needs_inv);
+ ret = its_prop_update_vlpi(irq->host_irq, prop, needs_inv);
- return 0;
+ raw_spin_unlock_irqrestore(&irq->irq_lock, flags);
+ return ret;
}
static int update_affinity(struct vgic_irq *irq, struct kvm_vcpu *vcpu)
{
- int ret = 0;
- unsigned long flags;
+ struct its_vlpi_map map;
+ int ret;
- raw_spin_lock_irqsave(&irq->irq_lock, flags);
+ guard(raw_spinlock_irqsave)(&irq->irq_lock);
irq->target_vcpu = vcpu;
- raw_spin_unlock_irqrestore(&irq->irq_lock, flags);
- if (irq->hw) {
- struct its_vlpi_map map;
-
- ret = its_get_vlpi(irq->host_irq, &map);
- if (ret)
- return ret;
+ if (!irq->hw)
+ return 0;
- if (map.vpe)
- atomic_dec(&map.vpe->vlpi_count);
- map.vpe = &vcpu->arch.vgic_cpu.vgic_v3.its_vpe;
- atomic_inc(&map.vpe->vlpi_count);
+ ret = its_get_vlpi(irq->host_irq, &map);
+ if (ret)
+ return ret;
- ret = its_map_vlpi(irq->host_irq, &map);
- }
+ if (map.vpe)
+ atomic_dec(&map.vpe->vlpi_count);
- return ret;
+ map.vpe = &vcpu->arch.vgic_cpu.vgic_v3.its_vpe;
+ atomic_inc(&map.vpe->vlpi_count);
+ return its_map_vlpi(irq->host_irq, &map);
}
static struct kvm_vcpu *collection_to_vcpu(struct kvm *kvm,
@@ -756,12 +751,17 @@ int vgic_its_inject_msi(struct kvm *kvm, struct kvm_msi *msi)
/* Requires the its_lock to be held. */
static void its_free_ite(struct kvm *kvm, struct its_ite *ite)
{
+ struct vgic_irq *irq = ite->irq;
list_del(&ite->ite_list);
/* This put matches the get in vgic_add_lpi. */
- if (ite->irq) {
- if (ite->irq->hw)
- WARN_ON(its_unmap_vlpi(ite->irq->host_irq));
+ if (irq) {
+ scoped_guard(raw_spinlock_irqsave, &irq->irq_lock) {
+ if (irq->hw)
+ WARN_ON(its_unmap_vlpi(ite->irq->host_irq));
+
+ irq->hw = false;
+ }
vgic_put_irq(kvm, ite->irq);
}
@@ -1971,7 +1971,7 @@ static int vgic_its_attr_regs_access(struct kvm_device *dev,
mutex_lock(&dev->kvm->lock);
- if (!lock_all_vcpus(dev->kvm)) {
+ if (kvm_trylock_all_vcpus(dev->kvm)) {
mutex_unlock(&dev->kvm->lock);
return -EBUSY;
}
@@ -2006,7 +2006,7 @@ static int vgic_its_attr_regs_access(struct kvm_device *dev,
}
out:
mutex_unlock(&dev->kvm->arch.config_lock);
- unlock_all_vcpus(dev->kvm);
+ kvm_unlock_all_vcpus(dev->kvm);
mutex_unlock(&dev->kvm->lock);
return ret;
}
@@ -2676,7 +2676,7 @@ static int vgic_its_ctrl(struct kvm *kvm, struct vgic_its *its, u64 attr)
mutex_lock(&kvm->lock);
- if (!lock_all_vcpus(kvm)) {
+ if (kvm_trylock_all_vcpus(kvm)) {
mutex_unlock(&kvm->lock);
return -EBUSY;
}
@@ -2698,7 +2698,7 @@ static int vgic_its_ctrl(struct kvm *kvm, struct vgic_its *its, u64 attr)
mutex_unlock(&its->its_lock);
mutex_unlock(&kvm->arch.config_lock);
- unlock_all_vcpus(kvm);
+ kvm_unlock_all_vcpus(kvm);
mutex_unlock(&kvm->lock);
return ret;
}