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8fe743b5eb
It turns out that there are no platforms that have PCI but don't have an MMU, so adding a Kconfig dependency on CONFIG_PCI simplifies build testing kernels for those platforms a lot, and avoids a lot of inadvertent build regressions. Add a dependency for CONFIG_PCI and remove all the ones for PCI specific device drivers that are currently marked not having it. There are a few platforms that have an optional MMU, but they usually cannot have PCI at all. The one exception is Coldfire MCF54xx, but this is mainly for historic reasons, and anyone using those chips should really use the MMU these days. Link: https://lore.kernel.org/lkml/a41f1b20-a76c-43d8-8c36-f12744327a54@app.fastmail.com/ Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> # SCSI Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Alex Deucher <alexander.deucher@amd.com> Link: https://patch.msgid.link/20250423202215.3315550-1-arnd@kernel.org
70 lines
1.8 KiB
Text
70 lines
1.8 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
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menu "VFIO support for PCI devices"
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depends on PCI
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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_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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source "drivers/vfio/pci/pds/Kconfig"
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source "drivers/vfio/pci/virtio/Kconfig"
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source "drivers/vfio/pci/nvgrace-gpu/Kconfig"
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source "drivers/vfio/pci/qat/Kconfig"
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endmenu
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