| # 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. |
