drivers/vfio/Kconfig

   1 config VFIO_IOMMU_TYPE1
   2         tristate
   3         depends on VFIO
   4         default n
   5
   6 config VFIO_IOMMU_SPAPR_TCE
   7         tristate
   8         depends on VFIO && SPAPR_TCE_IOMMU
   9         default VFIO
  10
  11 config VFIO_SPAPR_EEH
  12         tristate
  13         depends on EEH && VFIO_IOMMU_SPAPR_TCE
  14         default VFIO
  15
  16 config VFIO_VIRQFD
  17         tristate
  18         depends on VFIO && EVENTFD
  19         default n
  20
  21 menuconfig VFIO
  22         tristate "VFIO Non-Privileged userspace driver framework"
  23         depends on IOMMU_API
  24         select VFIO_IOMMU_TYPE1 if (X86 || S390 || ARM_SMMU || ARM_SMMU_V3)
  25         select ANON_INODES
  26         help
  27           VFIO provides a framework for secure userspace device drivers.
  28           See Documentation/vfio.txt for more details.
  29
  30           If you don't know what to do here, say N.
  31
  32 menuconfig VFIO_NOIOMMU
  33         bool "VFIO No-IOMMU support"
  34         depends on VFIO
  35         help
  36           VFIO is built on the ability to isolate devices using the IOMMU.
  37           Only with an IOMMU can userspace access to DMA capable devices be
  38           considered secure.  VFIO No-IOMMU mode enables IOMMU groups for
  39           devices without IOMMU backing for the purpose of re-using the VFIO
  40           infrastructure in a non-secure mode.  Use of this mode will result
  41           in an unsupportable kernel and will therefore taint the kernel.
  42           Device assignment to virtual machines is also not possible with
  43           this mode since there is no IOMMU to provide DMA translation.
  44
  45           If you don't know what to do here, say N.
  46
  47 source "drivers/vfio/pci/Kconfig"
  48 source "drivers/vfio/platform/Kconfig"
  49 source "drivers/vfio/mdev/Kconfig"
  50 source "virt/lib/Kconfig"