CONFIG_VFIO_IOMMU_SPAPR_TCE (not configurable)

modulename: vfio_iommu_spapr_tce.ko

configname: CONFIG_VFIO_IOMMU_SPAPR_TCE

Linux Kernel Configuration
└─>Device Drivers
└─>VFIO Non-Privileged userspace driver framework
└─>VFIO_IOMMU_SPAPR_TCE
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code:
drivers/vfio/vfio_iommu_spapr_tce.c