diff options
Diffstat (limited to 'drivers/vfio/pci/virtio/Kconfig')
| -rw-r--r-- | drivers/vfio/pci/virtio/Kconfig | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/vfio/pci/virtio/Kconfig b/drivers/vfio/pci/virtio/Kconfig new file mode 100644 index 000000000000..33e04e65bec6 --- /dev/null +++ b/drivers/vfio/pci/virtio/Kconfig @@ -0,0 +1,31 @@ +# SPDX-License-Identifier: GPL-2.0-only +config VIRTIO_VFIO_PCI + tristate "VFIO support for VIRTIO PCI VF devices" + depends on VIRTIO_PCI + select VFIO_PCI_CORE + help + This provides migration support for VIRTIO NET and BLOCK 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. |