CONFIG_VHOST_IOTLB (not configurable)

modulename: vhost_iotlb.ko

configname: CONFIG_VHOST_IOTLB

Linux Kernel Configuration
└─>Device Drivers
└─>VHOST_IOTLB
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
Generic IOTLB implementation for vhost and vringh.
This option is selected by any driver which needs to support
an IOMMU in software.

source code: