| # SPDX-License-Identifier: GPL-2.0-only |
| 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 |
| |
| config VFIO_PCI_IGD |
| bool "VFIO PCI extensions for Intel graphics (GVT-d)" |
| depends on VFIO_PCI && X86 |
| default y |
| help |
| Support for Intel IGD specific extensions to enable direct |
| assignment to virtual machines. This includes exposing an IGD |
| specific firmware table and read-only copies of the host bridge |
| and LPC bridge config space. |
| |
| To enable Intel IGD assignment through vfio-pci, say Y. |
| |
| config VFIO_PCI_NVLINK2 |
| def_bool y |
| depends on VFIO_PCI && PPC_POWERNV |
| help |
| VFIO PCI support for P9 Witherspoon machine with NVIDIA V100 GPUs |
