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 n
  10
  11 config VFIO_SPAPR_EEH
  12         tristate
  13         depends on EEH && VFIO_IOMMU_SPAPR_TCE
  14         default n
  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 VFIO_IOMMU_SPAPR_TCE if (PPC_POWERNV || PPC_PSERIES)
  26         select VFIO_SPAPR_EEH if (PPC_POWERNV || PPC_PSERIES)
  27         select ANON_INODES
  28         help
  29           VFIO provides a framework for secure userspace device drivers.
  30           See Documentation/vfio.txt for more details.
  31
  32           If you don't know what to do here, say N.
  33
  34 menuconfig VFIO_NOIOMMU
  35         bool "VFIO No-IOMMU support"
  36         depends on VFIO
  37         help
  38           VFIO is built on the ability to isolate devices using the IOMMU.
  39           Only with an IOMMU can userspace access to DMA capable devices be
  40           considered secure.  VFIO No-IOMMU mode enables IOMMU groups for
  41           devices without IOMMU backing for the purpose of re-using the VFIO
  42           infrastructure in a non-secure mode.  Use of this mode will result
  43           in an unsupportable kernel and will therefore taint the kernel.
  44           Device assignment to virtual machines is also not possible with
  45           this mode since there is no IOMMU to provide DMA translation.
  46
  47           If you don't know what to do here, say N.
  48
  49 source "drivers/vfio/pci/Kconfig"
  50 source "drivers/vfio/platform/Kconfig"
  51 source "virt/lib/Kconfig"