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