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Linux/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"

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