The device was tested with:
1) Upstream QEMU's vhost-user-device

    qemu-system-x86_64  \
            -m 4096 \
            -numa node,memdev=mem \
            -object memory-backend-file,id=mem,size=4G,mem-path=/dev/shm,share=on \
            -chardev socket,id=char1,path=/tmp/console.sock \
            -device vhost-user-device-pci,chardev=char1,virtio-id=3,num_vqs=4,config_size=12 \
            ...

2) A new QEMU vhost-user-console device which can be found in the following repo:
- https://github.com/virtualopensystems/qemu/tree/vhu-console-rfc

For more information, please check the README.md file under
staging/vhost-device-console/.

Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>

Changes were introduced to:
- Nested console backend
- Tx control message handler function

Co-authored-by: dorindabassey <53014273+dorindabassey@users.noreply.github.com>
Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>