Commit 332f6407 authored by Greg Kurz's avatar Greg Kurz Committed by Michael S. Tsirkin
Browse files

linux-headers: sync vhost.h 



This patch brings the cross-endian vhost API to QEMU.

Signed-off-by: default avatarGreg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent 6a084ea3

linux-headers/linux/vhost.h

+14 −0
Original line number Diff line number Diff line
@@ -103,6 +103,20 @@ struct vhost_memory { 
/* Get accessor: reads index, writes value in num */

#define VHOST_GET_VRING_BASE _IOWR(VHOST_VIRTIO, 0x12, struct vhost_vring_state)



/* Set the vring byte order in num. Valid values are VHOST_VRING_LITTLE_ENDIAN

 * or VHOST_VRING_BIG_ENDIAN (other values return -EINVAL).

 * The byte order cannot be changed while the device is active: trying to do so

 * returns -EBUSY.

 * This is a legacy only API that is simply ignored when VIRTIO_F_VERSION_1 is

 * set.

 * Not all kernel configurations support this ioctl, but all configurations that

 * support SET also support GET.

 */

#define VHOST_VRING_LITTLE_ENDIAN 0

#define VHOST_VRING_BIG_ENDIAN 1

#define VHOST_SET_VRING_ENDIAN _IOW(VHOST_VIRTIO, 0x13, struct vhost_vring_state)

#define VHOST_GET_VRING_ENDIAN _IOW(VHOST_VIRTIO, 0x14, struct vhost_vring_state)



/* The following ioctls use eventfd file descriptors to signal and poll

 * for events. */