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kernel add
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config VFIO_PCI
tristate "VFIO support for PCI devices"
depends on VFIO && PCI && EVENTFD
select VFIO_VIRQFD
select IRQ_BYPASS_MANAGER
help
Support for the PCI VFIO bus driver. This is required to make
use of PCI drivers using the VFIO framework.
If you don't know what to do here, say N.
config VFIO_PCI_VGA
bool "VFIO PCI support for VGA devices"
depends on VFIO_PCI && X86 && VGA_ARB
help
Support for VGA extension to VFIO PCI. This exposes an additional
region on VGA devices for accessing legacy VGA addresses used by
BIOS and generic video drivers.
If you don't know what to do here, say N.
config VFIO_PCI_MMAP
depends on VFIO_PCI
def_bool y if !S390
config VFIO_PCI_INTX
depends on VFIO_PCI
def_bool y if !S390
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