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# SPDX-License-Identifier: GPL-2.0-only
config VIRTIO_VFIO_PCI
tristate "VFIO support for VIRTIO NET PCI VF devices"
depends on VIRTIO_PCI
select VFIO_PCI_CORE
help
This provides migration support for VIRTIO NET PCI VF devices
using the VFIO framework. Migration support requires the
SR-IOV PF device to support specific VIRTIO extensions,
otherwise this driver provides no additional functionality
beyond vfio-pci.
Migration support in this driver relies on dirty page tracking
provided by the IOMMU hardware and exposed through IOMMUFD, any
other use cases are dis-recommended.
If you don't know what to do here, say N.
config VIRTIO_VFIO_PCI_ADMIN_LEGACY
bool "Legacy I/O support for VIRTIO NET PCI VF devices"
depends on VIRTIO_VFIO_PCI && VIRTIO_PCI_ADMIN_LEGACY
default y
help
This extends the virtio-vfio-pci driver to support legacy I/O
access, allowing use of legacy virtio drivers with VIRTIO NET
PCI VF devices. Legacy I/O support requires the SR-IOV PF
device to support and enable specific VIRTIO extensions,
otherwise this driver provides no additional functionality
beyond vfio-pci.
If you don't know what to do here, say N.
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