menuconfig RT_USING_VIRTIO
    bool "Using VirtIO device drivers"
    default n

    if RT_USING_VIRTIO
        choice RT_USING_VIRTIO_VERSION
            prompt "VirtIO Version"
            default RT_USING_VIRTIO_LEGACY

            config RT_USING_VIRTIO_LEGACY
                bool "VirtIO Legacy (v0.95)"
                help
                    Support for VirtIO legacy interface (version 0x1).
                    This is the older version compatible with most existing QEMU versions.

            config RT_USING_VIRTIO10
                bool "VirtIO Legacy (v1.0 - alias for compatibility)"
                help
                    Alias for RT_USING_VIRTIO_LEGACY for backward compatibility.
                    Support for VirtIO legacy interface (version 0x1).

            config RT_USING_VIRTIO_MODERN
                bool "VirtIO Modern (v1.0+)"
                help
                    Support for VirtIO modern interface (version 0x2).
                    This version supports VirtIO 1.0, 1.1, and 1.2 specifications.
                    Requires QEMU 2.4+ or compatible hypervisor.
        endchoice

        config RT_USING_VIRTIO_MMIO_ALIGN
            bool "Using VirtIO MMIO alignment"
            default y

        config RT_USING_VIRTIO_BLK
            bool "Using VirtIO BLK"
            default y

        config RT_USING_VIRTIO_NET
            bool "Using VirtIO NET"
            default y

        menuconfig RT_USING_VIRTIO_CONSOLE
            bool "Using VirtIO Console"
            default y

            if RT_USING_VIRTIO_CONSOLE
                config RT_USING_VIRTIO_CONSOLE_PORT_MAX_NR
                    int "Max number of port in VirtIO Console"
                    default 4
            endif

        config RT_USING_VIRTIO_GPU
            bool "Using VirtIO GPU"
            default y

        config RT_USING_VIRTIO_INPUT
            bool "Using VirtIO Input"
            default y
    endif