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