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It should be possible to select vfio-pci variant drivers without building vfio-pci itself, which implies each variant driver should select vfio-pci-core. Fix the top level vfio Makefile to traverse pci based on vfio-pci-core rather than vfio-pci. Mark MMAP and INTX options depending on vfio-pci-core to cleanup resulting config if core is not enabled. Push all PCI related vfio options to a sub-menu and make descriptions consistent. Reviewed-by: Cédric Le Goater <clg@redhat.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Link: https://lore.kernel.org/r/20230614193948.477036-2-alex.williamson@redhat.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
67 lines
1.7 KiB
Plaintext
67 lines
1.7 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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menu "VFIO support for PCI devices"
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depends on PCI && MMU
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config VFIO_PCI_CORE
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tristate
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select VFIO_VIRQFD
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select IRQ_BYPASS_MANAGER
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config VFIO_PCI_MMAP
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def_bool y if !S390
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depends on VFIO_PCI_CORE
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config VFIO_PCI_INTX
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def_bool y if !S390
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depends on VFIO_PCI_CORE
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config VFIO_PCI
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tristate "Generic VFIO support for any PCI device"
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select VFIO_PCI_CORE
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help
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Support for the generic PCI VFIO bus driver which can connect any
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PCI device to the VFIO framework.
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If you don't know what to do here, say N.
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if VFIO_PCI
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config VFIO_PCI_VGA
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bool "Generic VFIO PCI support for VGA devices"
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depends on X86 && VGA_ARB
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help
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Support for VGA extension to VFIO PCI. This exposes an additional
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region on VGA devices for accessing legacy VGA addresses used by
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BIOS and generic video drivers.
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If you don't know what to do here, say N.
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config VFIO_PCI_IGD
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bool "Generic VFIO PCI extensions for Intel graphics (GVT-d)"
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depends on X86
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default y
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help
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Support for Intel IGD specific extensions to enable direct
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assignment to virtual machines. This includes exposing an IGD
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specific firmware table and read-only copies of the host bridge
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and LPC bridge config space.
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To enable Intel IGD assignment through vfio-pci, say Y.
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endif
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config VFIO_PCI_ZDEV_KVM
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bool "VFIO PCI extensions for s390x KVM passthrough"
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depends on S390 && KVM
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default y
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help
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Support s390x-specific extensions to enable support for enhancements
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to KVM passthrough capabilities, such as interpretive execution of
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zPCI instructions.
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To enable s390x KVM vfio-pci extensions, say Y.
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source "drivers/vfio/pci/mlx5/Kconfig"
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source "drivers/vfio/pci/hisilicon/Kconfig"
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endmenu
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