| # SPDX-License-Identifier: GPL-2.0-only |
| config VFIO_IOMMU_TYPE1 |
| tristate |
| depends on VFIO |
| default n |
| |
| config VFIO_IOMMU_SPAPR_TCE |
| tristate |
| depends on VFIO && SPAPR_TCE_IOMMU |
| default VFIO |
| |
| config VFIO_SPAPR_EEH |
| tristate |
| depends on EEH && VFIO_IOMMU_SPAPR_TCE |
| default VFIO |
| |
| config VFIO_VIRQFD |
| tristate |
| depends on VFIO && EVENTFD |
| default n |
| |
| menuconfig VFIO |
| tristate "VFIO Non-Privileged userspace driver framework" |
| select IOMMU_API |
| select VFIO_IOMMU_TYPE1 if MMU && (X86 || S390 || ARM || ARM64) |
| help |
| VFIO provides a framework for secure userspace device drivers. |
| See Documentation/driver-api/vfio.rst for more details. |
| |
| If you don't know what to do here, say N. |
| |
| config VFIO_NOIOMMU |
| bool "VFIO No-IOMMU support" |
| depends on VFIO |
| help |
| VFIO is built on the ability to isolate devices using the IOMMU. |
| Only with an IOMMU can userspace access to DMA capable devices be |
| considered secure. VFIO No-IOMMU mode enables IOMMU groups for |
| devices without IOMMU backing for the purpose of re-using the VFIO |
| infrastructure in a non-secure mode. Use of this mode will result |
| in an unsupportable kernel and will therefore taint the kernel. |
| Device assignment to virtual machines is also not possible with |
| this mode since there is no IOMMU to provide DMA translation. |
| |
| If you don't know what to do here, say N. |
| |
| source "drivers/vfio/pci/Kconfig" |
| source "drivers/vfio/platform/Kconfig" |
| source "drivers/vfio/mdev/Kconfig" |
| source "drivers/vfio/fsl-mc/Kconfig" |
| source "virt/lib/Kconfig" |
