CONFIG_VIRTIO_UML is not available for thedefaultarchitecture x86.
Result is shown for architecture um
UML driver for virtio devices
modulename: virtio_uml.ko
configname: CONFIG_VIRTIO_UML
Linux Kernel Configuration
└─>UML driver for virtio devices
In linux kernel since version 4.14.326 (release Date: 2023-09-23)
This driver provides support for virtio based paravirtual device
drivers over vhost-user sockets.
drivers over vhost-user sockets.