diff options
Diffstat (limited to 'virt/kvm/arm/vgic/vgic-mmio.c')
| -rw-r--r-- | virt/kvm/arm/vgic/vgic-mmio.c | 44 |
1 files changed, 26 insertions, 18 deletions
diff --git a/virt/kvm/arm/vgic/vgic-mmio.c b/virt/kvm/arm/vgic/vgic-mmio.c index c1e4bdd66131..deb51ee16a3d 100644 --- a/virt/kvm/arm/vgic/vgic-mmio.c +++ b/virt/kvm/arm/vgic/vgic-mmio.c @@ -69,13 +69,14 @@ void vgic_mmio_write_senable(struct kvm_vcpu *vcpu, { u32 intid = VGIC_ADDR_TO_INTID(addr, 1); int i; + unsigned long flags; for_each_set_bit(i, &val, len * 8) { struct vgic_irq *irq = vgic_get_irq(vcpu->kvm, vcpu, intid + i); - spin_lock(&irq->irq_lock); + spin_lock_irqsave(&irq->irq_lock, flags); irq->enabled = true; - vgic_queue_irq_unlock(vcpu->kvm, irq); + vgic_queue_irq_unlock(vcpu->kvm, irq, flags); vgic_put_irq(vcpu->kvm, irq); } @@ -87,15 +88,16 @@ void vgic_mmio_write_cenable(struct kvm_vcpu *vcpu, { u32 intid = VGIC_ADDR_TO_INTID(addr, 1); int i; + unsigned long flags; for_each_set_bit(i, &val, len * 8) { struct vgic_irq *irq = vgic_get_irq(vcpu->kvm, vcpu, intid + i); - spin_lock(&irq->irq_lock); + spin_lock_irqsave(&irq->irq_lock, flags); irq->enabled = false; - spin_unlock(&irq->irq_lock); + spin_unlock_irqrestore(&irq->irq_lock, flags); vgic_put_irq(vcpu->kvm, irq); } } @@ -126,14 +128,15 @@ void vgic_mmio_write_spending(struct kvm_vcpu *vcpu, { u32 intid = VGIC_ADDR_TO_INTID(addr, 1); int i; + unsigned long flags; for_each_set_bit(i, &val, len * 8) { struct vgic_irq *irq = vgic_get_irq(vcpu->kvm, vcpu, intid + i); - spin_lock(&irq->irq_lock); + spin_lock_irqsave(&irq->irq_lock, flags); irq->pending_latch = true; - vgic_queue_irq_unlock(vcpu->kvm, irq); + vgic_queue_irq_unlock(vcpu->kvm, irq, flags); vgic_put_irq(vcpu->kvm, irq); } } @@ -144,15 +147,16 @@ void vgic_mmio_write_cpending(struct kvm_vcpu *vcpu, { u32 intid = VGIC_ADDR_TO_INTID(addr, 1); int i; + unsigned long flags; for_each_set_bit(i, &val, len * 8) { struct vgic_irq *irq = vgic_get_irq(vcpu->kvm, vcpu, intid + i); - spin_lock(&irq->irq_lock); + spin_lock_irqsave(&irq->irq_lock, flags); irq->pending_latch = false; - spin_unlock(&irq->irq_lock); + spin_unlock_irqrestore(&irq->irq_lock, flags); vgic_put_irq(vcpu->kvm, irq); } } @@ -181,7 +185,8 @@ static void vgic_mmio_change_active(struct kvm_vcpu *vcpu, struct vgic_irq *irq, bool new_active_state) { struct kvm_vcpu *requester_vcpu; - spin_lock(&irq->irq_lock); + unsigned long flags; + spin_lock_irqsave(&irq->irq_lock, flags); /* * The vcpu parameter here can mean multiple things depending on how @@ -216,9 +221,9 @@ static void vgic_mmio_change_active(struct kvm_vcpu *vcpu, struct vgic_irq *irq, irq->active = new_active_state; if (new_active_state) - vgic_queue_irq_unlock(vcpu->kvm, irq); + vgic_queue_irq_unlock(vcpu->kvm, irq, flags); else - spin_unlock(&irq->irq_lock); + spin_unlock_irqrestore(&irq->irq_lock, flags); } /* @@ -352,14 +357,15 @@ void vgic_mmio_write_priority(struct kvm_vcpu *vcpu, { u32 intid = VGIC_ADDR_TO_INTID(addr, 8); int i; + unsigned long flags; for (i = 0; i < len; i++) { struct vgic_irq *irq = vgic_get_irq(vcpu->kvm, vcpu, intid + i); - spin_lock(&irq->irq_lock); + spin_lock_irqsave(&irq->irq_lock, flags); /* Narrow the priority range to what we actually support */ irq->priority = (val >> (i * 8)) & GENMASK(7, 8 - VGIC_PRI_BITS); - spin_unlock(&irq->irq_lock); + spin_unlock_irqrestore(&irq->irq_lock, flags); vgic_put_irq(vcpu->kvm, irq); } @@ -390,6 +396,7 @@ void vgic_mmio_write_config(struct kvm_vcpu *vcpu, { u32 intid = VGIC_ADDR_TO_INTID(addr, 2); int i; + unsigned long flags; for (i = 0; i < len * 4; i++) { struct vgic_irq *irq; @@ -404,14 +411,14 @@ void vgic_mmio_write_config(struct kvm_vcpu *vcpu, continue; irq = vgic_get_irq(vcpu->kvm, vcpu, intid + i); - spin_lock(&irq->irq_lock); + spin_lock_irqsave(&irq->irq_lock, flags); if (test_bit(i * 2 + 1, &val)) irq->config = VGIC_CONFIG_EDGE; else irq->config = VGIC_CONFIG_LEVEL; - spin_unlock(&irq->irq_lock); + spin_unlock_irqrestore(&irq->irq_lock, flags); vgic_put_irq(vcpu->kvm, irq); } } @@ -443,6 +450,7 @@ void vgic_write_irq_line_level_info(struct kvm_vcpu *vcpu, u32 intid, { int i; int nr_irqs = vcpu->kvm->arch.vgic.nr_spis + VGIC_NR_PRIVATE_IRQS; + unsigned long flags; for (i = 0; i < 32; i++) { struct vgic_irq *irq; @@ -459,12 +467,12 @@ void vgic_write_irq_line_level_info(struct kvm_vcpu *vcpu, u32 intid, * restore irq config before line level. */ new_level = !!(val & (1U << i)); - spin_lock(&irq->irq_lock); + spin_lock_irqsave(&irq->irq_lock, flags); irq->line_level = new_level; if (new_level) - vgic_queue_irq_unlock(vcpu->kvm, irq); + vgic_queue_irq_unlock(vcpu->kvm, irq, flags); else - spin_unlock(&irq->irq_lock); + spin_unlock_irqrestore(&irq->irq_lock, flags); vgic_put_irq(vcpu->kvm, irq); } |