351 static int vfio_ap_validate_nib(struct kvm_vcpu *vcpu, dma_addr_t *nib)  in vfio_ap_validate_nib()  argument
353 	*nib = vcpu->run->s.regs.gprs[2];  in vfio_ap_validate_nib()
355 	if (!*nib)  in vfio_ap_validate_nib()
357 	if (kvm_is_error_hva(gfn_to_hva(vcpu->kvm, *nib >> PAGE_SHIFT)))  in vfio_ap_validate_nib()
416 	dma_addr_t nib;  in vfio_ap_irq_enable()  local
420 	if (vfio_ap_validate_nib(vcpu, &nib)) {  in vfio_ap_irq_enable()
422 				 __func__, &nib, q->apqn);  in vfio_ap_irq_enable()
428 	ret = vfio_pin_pages(&q->matrix_mdev->vdev, nib, 1,  in vfio_ap_irq_enable()
436 				 __func__, ret, &nib, q->apqn);  in vfio_ap_irq_enable()
445 	h_nib = page_to_phys(h_page) | (nib & ~PAGE_MASK);  in vfio_ap_irq_enable()
451 		vfio_unpin_pages(&q->matrix_mdev->vdev, nib, 1);  in vfio_ap_irq_enable()
461 		vfio_unpin_pages(&q->matrix_mdev->vdev, nib, 1);  in vfio_ap_irq_enable()
475 		q->saved_iova = nib;  in vfio_ap_irq_enable()
484 		vfio_unpin_pages(&q->matrix_mdev->vdev, nib, 1);  in vfio_ap_irq_enable()