Commit 41d283bd authored by Greg Kurz's avatar Greg Kurz Committed by Michael S. Tsirkin
Browse files

virtio: introduce virtio_legacy_is_cross_endian() 



This helper will be used by vhost and tap to detect cross-endianness in
the legacy virtio case.

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 332f6407

include/hw/virtio/virtio-access.h

+13 −0
Original line number Diff line number Diff line
@@ -32,6 +32,19 @@ static inline bool virtio_access_is_big_endian(VirtIODevice *vdev) 
#endif

}



static inline bool virtio_legacy_is_cross_endian(VirtIODevice *vdev)

{

#ifdef TARGET_IS_BIENDIAN

#ifdef HOST_WORDS_BIGENDIAN

    return !virtio_is_big_endian(vdev);

#else

    return virtio_is_big_endian(vdev);

#endif

#else

    return false;

#endif

}



static inline uint16_t virtio_lduw_phys(VirtIODevice *vdev, hwaddr pa)

{

    if (virtio_access_is_big_endian(vdev)) {