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This gives virtio-enabled boards an easy route to network connectivity:
qemu-system-aarch64 -M virt -serial mon:stdio -trace file=/dev/null \
-kernel images/barebox-dt-2nd.img -cpu cortex-a57 -nographic \
-device virtio-net-device,netdev=network0 -netdev tap,id=network0,ifname=tap0
The tap0 interface created by QEMU can then be bridged/listened on.
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Sphinx complains, probably, because _virtio is used for footnote in
the same document. Rename it to fix the reference.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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We already support Linux event codes, because they are used in the
device tree bindings for e.g. gpio-keys.
Virtio input devices report events using the same codes, so a driver
just has to shovel the codes from virtqueue into the input layer. Do so.
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This driver provides support for virtio based paravirtual device
drivers over PCI. This is useful with Qemu for boards that barebox
has PCI support for, e.g. MIPS Malta.
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Save users the trip to the commit log and reproduce some example qemu
invocations in the documentation. The text around it is adapted from
the U-Boot doc/README.virtio.
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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