CONFIG_IOMMU_IOPF (not configurable)

modulename: io-pgfault.ko

configname: CONFIG_IOMMU_IOPF

Linux Kernel Configuration
└─>Device Drivers
└─>IOMMU Hardware Support
└─>IOMMU_IOPF
In linux kernel since version 4.19.314 (release Date: 2024-05-17)  
source code:
drivers/iommu/io-pgfault.c