diff options
Diffstat (limited to 'arch/arm64/kvm/vgic/vgic-its.c')
| -rw-r--r-- | arch/arm64/kvm/vgic/vgic-its.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm64/kvm/vgic/vgic-its.c b/arch/arm64/kvm/vgic/vgic-its.c index e2764d0ffa9f..fb2d3c356984 100644 --- a/arch/arm64/kvm/vgic/vgic-its.c +++ b/arch/arm64/kvm/vgic/vgic-its.c @@ -52,6 +52,12 @@ static struct vgic_irq *vgic_add_lpi(struct kvm *kvm, u32 intid, if (!irq) return ERR_PTR(-ENOMEM); + ret = xa_reserve_irq(&dist->lpi_xa, intid, GFP_KERNEL_ACCOUNT); + if (ret) { + kfree(irq); + return ERR_PTR(ret); + } + INIT_LIST_HEAD(&irq->lpi_list); INIT_LIST_HEAD(&irq->ap_list); raw_spin_lock_init(&irq->irq_lock); @@ -86,12 +92,22 @@ static struct vgic_irq *vgic_add_lpi(struct kvm *kvm, u32 intid, goto out_unlock; } + ret = xa_err(xa_store(&dist->lpi_xa, intid, irq, 0)); + if (ret) { + xa_release(&dist->lpi_xa, intid); + kfree(irq); + goto out_unlock; + } + list_add_tail(&irq->lpi_list, &dist->lpi_list_head); dist->lpi_list_count++; out_unlock: raw_spin_unlock_irqrestore(&dist->lpi_list_lock, flags); + if (ret) + return ERR_PTR(ret); + /* * We "cache" the configuration table entries in our struct vgic_irq's. * However we only have those structs for mapped IRQs, so we read in |