mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-28 13:22:57 +00:00
53b7d34f70
[ Upstream commit26c22cfde5] VFIO_NOIOMMU is supposed to be an element in the VFIO menu, not start a new menu. Correct this copy-paste mistake. Fixes:03a76b60f8("vfio: Include No-IOMMU mode") Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Link: https://lore.kernel.org/r/0-v1-3f0b685c3679+478-vfio_menuconfig_jgg@nvidia.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
50 lines
1.4 KiB
Text
50 lines
1.4 KiB
Text
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)
|
|
select ANON_INODES
|
|
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.
|
|
|
|
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 "virt/lib/Kconfig"
|