CONFIG_IOMMUFD_NOIOMMU (not configurable)
configname: CONFIG_IOMMUFD_NOIOMMU
Linux Kernel Configuration
└─>Device Drivers
└─>IOMMU Hardware Support
└─>IOMMUFD_NOIOMMU
In linux kernel since version 5.15.218 (release Date: 2026-08-27)
Provides a SW-only IO page table for devices without hardware
IOMMU backing. This uses the AMDV1 page table format for
IOVA-to-PA lookups only, not for hardware DMA translation.
To be selected by VFIO_NOIOMMU when VFIO_DEVICE_CDEV is enabled.
IOMMU backing. This uses the AMDV1 page table format for
IOVA-to-PA lookups only, not for hardware DMA translation.
To be selected by VFIO_NOIOMMU when VFIO_DEVICE_CDEV is enabled.