50 lines
1.4 KiB
Plaintext
50 lines
1.4 KiB
Plaintext
|
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"
|
||
|
|
depends on IOMMU_API
|
||
|
|
select VFIO_IOMMU_TYPE1 if (X86 || S390 || ARM_SMMU || ARM_SMMU_V3)
|
||
|
|
help
|
||
|
|
VFIO provides a framework for secure userspace device drivers.
|
||
|
|
See Documentation/vfio.txt for more details.
|
||
|
|
|
||
|
|
If you don't know what to do here, say N.
|
||
|
|
|
||
|
|
menuconfig 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 "virt/lib/Kconfig"
|