1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */ 2 /* 3 * Definitions for virtio-ccw devices. 4 * 5 * Copyright IBM Corp. 2013 6 * 7 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com> 8 */ 9 #ifndef __KVM_VIRTIO_CCW_H 10 #define __KVM_VIRTIO_CCW_H 11 12 /* Alignment of vring buffers. */ 13 #define KVM_VIRTIO_CCW_RING_ALIGN 4096 14 15 /* Subcode for diagnose 500 (virtio hypercall). */ 16 #define KVM_S390_VIRTIO_CCW_NOTIFY 3 17 18 #endif 19