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This adds a new virtio uclass driver for “virtio” [1] family of devices that are are found in virtual environments like QEMU, yet by design they look like physical devices to the guest. The uclass driver provides child_pre_probe() and child_post_probe() methods to do some common operations for virtio device drivers like device and driver supported feature negotiation, etc. [1] http://docs.oasis-open.org/virtio/virtio/v1.0/virtio-v1.0.pdf Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi> Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
25 lines
931 B
Text
25 lines
931 B
Text
# SPDX-License-Identifier: GPL-2.0+
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#
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# Copyright (C) 2018, Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
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# Copyright (C) 2018, Bin Meng <bmeng.cn@gmail.com>
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#
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# VirtIO is a virtualization standard for network and disk device drivers
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# where just the guest's device driver "knows" it is running in a virtual
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# environment, and cooperates with the hypervisor. This enables guests to
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# get high performance network and disk operations, and gives most of the
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# performance benefits of paravirtualization. In the U-Boot case, the guest
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# is U-Boot itself, while the virtual environment are normally QEMU targets
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# like ARM, RISC-V and x86.
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#
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# See http://docs.oasis-open.org/virtio/virtio/v1.0/virtio-v1.0.pdf for
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# the VirtIO specification v1.0.
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menu "VirtIO Drivers"
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config VIRTIO
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bool
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help
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This option is selected by any driver which implements the virtio
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transport, such as CONFIG_VIRTIO_MMIO or CONFIG_VIRTIO_PCI.
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endmenu
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