menuconfig RT_USING_VIRTIO
    bool "Using VirtIO device drivers"
    default n
    help
      Enable VirtIO front-end drivers for virtualized environments (QEMU,
      cloud). Requires a hypervisor exposing VirtIO MMIO or PCI devices.

    if RT_USING_VIRTIO
        choice RT_USING_VIRTIO_VERSION
            prompt "VirtIO Version"
            default RT_USING_VIRTIO10

            config RT_USING_VIRTIO10
                bool "VirtIO v1.0"
                help
                  Use the modern VirtIO 1.0 device layout with feature bits in
                  the standard registers.
        endchoice

        config RT_USING_VIRTIO_MMIO_ALIGN
            bool "Using VirtIO MMIO alignment"
            default y
            help
              Enforce strict MMIO alignment handling required by some hosts.

        config RT_USING_VIRTIO_BLK
            bool "Using VirtIO BLK"
            default y
            help
              Build the VirtIO block driver to expose virtual disks as RT-Thread
              block devices.

        config RT_USING_VIRTIO_NET
            bool "Using VirtIO NET"
            default y
            help
              Build the VirtIO network driver to connect to the hypervisor's
              virtual NIC.

        menuconfig RT_USING_VIRTIO_CONSOLE
            bool "Using VirtIO Console"
            default y
            help
              Enable the VirtIO console port driver for serial I/O via hypervisor.

            if RT_USING_VIRTIO_CONSOLE
                config RT_USING_VIRTIO_CONSOLE_PORT_MAX_NR
                    int "Max number of port in VirtIO Console"
                    default 4
                    help
                      Maximum number of sub-ports exposed by the VirtIO console.
            endif

        config RT_USING_VIRTIO_GPU
            bool "Using VirtIO GPU"
            default y
            help
              Build the VirtIO GPU driver for virtual display support.

        config RT_USING_VIRTIO_INPUT
            bool "Using VirtIO Input"
            default y
            help
              Register VirtIO input devices (keyboard, pointer) through RT-Thread.
    endif