diff options
Diffstat (limited to 'virt/kvm/arm/vgic/vgic-mmio-v2.c')
| -rw-r--r-- | virt/kvm/arm/vgic/vgic-mmio-v2.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/virt/kvm/arm/vgic/vgic-mmio-v2.c b/virt/kvm/arm/vgic/vgic-mmio-v2.c index b3d4a10f09a1..e21e2f49b005 100644 --- a/virt/kvm/arm/vgic/vgic-mmio-v2.c +++ b/virt/kvm/arm/vgic/vgic-mmio-v2.c @@ -74,6 +74,7 @@ static void vgic_mmio_write_sgir(struct kvm_vcpu *source_vcpu, int mode = (val >> 24) & 0x03; int c; struct kvm_vcpu *vcpu; + unsigned long flags; switch (mode) { case 0x0: /* as specified by targets */ @@ -97,11 +98,11 @@ static void vgic_mmio_write_sgir(struct kvm_vcpu *source_vcpu, irq = vgic_get_irq(source_vcpu->kvm, vcpu, intid); - spin_lock(&irq->irq_lock); + spin_lock_irqsave(&irq->irq_lock, flags); irq->pending_latch = true; irq->source |= 1U << source_vcpu->vcpu_id; - vgic_queue_irq_unlock(source_vcpu->kvm, irq); + vgic_queue_irq_unlock(source_vcpu->kvm, irq, flags); vgic_put_irq(source_vcpu->kvm, irq); } } @@ -131,6 +132,7 @@ static void vgic_mmio_write_target(struct kvm_vcpu *vcpu, u32 intid = VGIC_ADDR_TO_INTID(addr, 8); u8 cpu_mask = GENMASK(atomic_read(&vcpu->kvm->online_vcpus) - 1, 0); int i; + unsigned long flags; /* GICD_ITARGETSR[0-7] are read-only */ if (intid < VGIC_NR_PRIVATE_IRQS) @@ -140,13 +142,13 @@ static void vgic_mmio_write_target(struct kvm_vcpu *vcpu, struct vgic_irq *irq = vgic_get_irq(vcpu->kvm, NULL, intid + i); int target; - spin_lock(&irq->irq_lock); + spin_lock_irqsave(&irq->irq_lock, flags); irq->targets = (val >> (i * 8)) & cpu_mask; target = irq->targets ? __ffs(irq->targets) : 0; irq->target_vcpu = kvm_get_vcpu(vcpu->kvm, target); - spin_unlock(&irq->irq_lock); + spin_unlock_irqrestore(&irq->irq_lock, flags); vgic_put_irq(vcpu->kvm, irq); } } @@ -174,17 +176,18 @@ static void vgic_mmio_write_sgipendc(struct kvm_vcpu *vcpu, { u32 intid = addr & 0x0f; 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); irq->source &= ~((val >> (i * 8)) & 0xff); if (!irq->source) irq->pending_latch = false; - spin_unlock(&irq->irq_lock); + spin_unlock_irqrestore(&irq->irq_lock, flags); vgic_put_irq(vcpu->kvm, irq); } } @@ -195,19 +198,20 @@ static void vgic_mmio_write_sgipends(struct kvm_vcpu *vcpu, { u32 intid = addr & 0x0f; 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); irq->source |= (val >> (i * 8)) & 0xff; if (irq->source) { irq->pending_latch = true; - 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); } |