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- # SPDX-License-Identifier: GPL-2.0-only
- config VIRTIO_VFIO_PCI
- tristate "VFIO support for VIRTIO NET PCI devices"
- depends on VIRTIO_PCI && VIRTIO_PCI_ADMIN_LEGACY
- select VFIO_PCI_CORE
- help
- This provides support for exposing VIRTIO NET VF devices which support
- legacy IO access, using the VFIO framework that can work with a legacy
- virtio driver in the guest.
- Based on PCIe spec, VFs do not support I/O Space.
- As of that this driver emulates I/O BAR in software to let a VF be
- seen as a transitional device by its users and let it work with
- a legacy driver.
- If you don't know what to do here, say N.
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