diff mbox series

[V8,3/3] docs: Add documentation for generic virtio devices

Message ID b427a95b2c051ecd12d8342d65a34aa16a1feebd.1670839220.git.viresh.kumar@linaro.org (mailing list archive)
State Superseded
Headers show
Series toolstack support for generic virtio devices on Arm | expand

Commit Message

Viresh Kumar Dec. 12, 2022, 10:05 a.m. UTC 
This patch updates xl.cfg man page with details of generic Virtio device
related information.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 docs/man/xl.cfg.5.pod.in | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

Comments

Anthony PERARD Dec. 12, 2022, 4 p.m. UTC | #1 
On Mon, Dec 12, 2022 at 03:35:55PM +0530, Viresh Kumar wrote:
> This patch updates xl.cfg man page with details of generic Virtio device
> related information.
> 
> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>

Thanks,
diff mbox series

Patch

diff --git a/docs/man/xl.cfg.5.pod.in b/docs/man/xl.cfg.5.pod.in
index ec444fb2ba79..024bceeb61b2 100644
--- a/docs/man/xl.cfg.5.pod.in
+++ b/docs/man/xl.cfg.5.pod.in
@@ -1585,6 +1585,39 @@  Set maximum height for pointer device.
 
 =back
 
+=item B<virtio=[ "VIRTIO_DEVICE_STRING", "VIRTIO_DEVICE_STRING", ...]>
+
+Specifies the Virtio devices to be provided to the guest.
+
+Each B<VIRTIO_DEVICE_STRING> is a comma-separated list of C<KEY=VALUE> settings
+from the following list. As a special case, a single comma is allowed in the
+VALUE of the "type" KEY, where the VALUE is set with "virtio,device<N>".
+
+=over 4
+
+=item B<backend=domain-id>
+
+Specifies the backend domain name or id, defaults to dom0.
+
+=item B<type=STRING>
+
+Specifies the compatible string for the specific Virtio device. The same will be
+written in the Device Tree compatible property of the Virtio device. For
+example, "type=virtio,device22" for the I2C device, whose device-tree binding is
+present here:
+
+L<https://www.kernel.org/doc/Documentation/devicetree/bindings/i2c/i2c-virtio.yaml>
+
+For generic virtio devices, where we don't need to set special or compatible
+properties in the Device Tree, the type field must be set to "virtio,device".
+
+=item B<transport=STRING>
+
+Specifies the transport mechanism for the Virtio device, only "mmio" is
+supported for now.
+
+=back
+
 =item B<tee="STRING">
 
 B<Arm only.> Set TEE type for the guest. TEE is a Trusted Execution