| # 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 | |
| config VFIO_PCI_ZDEV | |
| bool "VFIO PCI ZPCI device CLP support" | |
| depends on VFIO_PCI && S390 | |
| default y | |
| help | |
| Enabling this option exposes VFIO capabilities containing hardware | |
| configuration for zPCI devices. This enables userspace (e.g. QEMU) | |
| to supply proper configuration values instead of hard-coded defaults | |
| for zPCI devices passed through via VFIO on s390. | |
| Say Y here. |