179209fa12
As IOMMU_API is a kconfig without a description (eg does not show in the
menu) the correct operator is select not 'depends on'. Using 'depends on'
for this kind of symbol means VFIO is not selectable unless some other
random kconfig has already enabled IOMMU_API for it.
Fixes: cba3345cc4 ("vfio: VFIO core")
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Message-Id: <1-v1-df057e0f92c3+91-vfio_arm_compile_test_jgg@nvidia.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
52 lines
1.5 KiB
Plaintext
52 lines
1.5 KiB
Plaintext
# 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 (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.
|
|
|
|
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 "drivers/vfio/fsl-mc/Kconfig"
|
|
source "virt/lib/Kconfig"
|