add_vhost_scsi_lun is used to add bdev bdev_name as SCSI LUN0 to SCSI target id scsi_target_num. Yeah, documentation is very briefly :) Would be good to describe more those vhost RPC methods.Summary: This release adds a new amdgpu driver for modern AMD Radeon hardware, a virtio GPU driver to use the host GPU capabilities inside guests, the new atomic modesetting graphics API has been declared stable, support for stacking of security modules, a faster and more scalable spinlock implementation, cgroup writeback support, and reintroduction.