Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) # SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) config VFIO_IOMMU_TYPE1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) 	tristate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 	depends on VFIO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 	default n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) config VFIO_IOMMU_SPAPR_TCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 	tristate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 	depends on VFIO && SPAPR_TCE_IOMMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 	default VFIO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) config VFIO_SPAPR_EEH
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	tristate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	depends on EEH && VFIO_IOMMU_SPAPR_TCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	default VFIO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) config VFIO_VIRQFD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	tristate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	depends on VFIO && EVENTFD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	default n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) menuconfig VFIO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	tristate "VFIO Non-Privileged userspace driver framework"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	select IOMMU_API
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	select VFIO_IOMMU_TYPE1 if MMU && (X86 || S390 || ARM || ARM64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	  VFIO provides a framework for secure userspace device drivers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	  See Documentation/driver-api/vfio.rst for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	  If you don't know what to do here, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) config VFIO_NOIOMMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	bool "VFIO No-IOMMU support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	depends on VFIO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	  VFIO is built on the ability to isolate devices using the IOMMU.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	  Only with an IOMMU can userspace access to DMA capable devices be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	  considered secure.  VFIO No-IOMMU mode enables IOMMU groups for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	  devices without IOMMU backing for the purpose of re-using the VFIO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	  infrastructure in a non-secure mode.  Use of this mode will result
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	  in an unsupportable kernel and will therefore taint the kernel.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	  Device assignment to virtual machines is also not possible with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	  this mode since there is no IOMMU to provide DMA translation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	  If you don't know what to do here, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) source "drivers/vfio/pci/Kconfig"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) source "drivers/vfio/platform/Kconfig"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) source "drivers/vfio/mdev/Kconfig"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) source "drivers/vfio/fsl-mc/Kconfig"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) source "virt/lib/Kconfig"