[PATCH V3 1/2] docs: Allow generic virtio device types to contain device-id

[Viresh Kumar <viresh.kumar@xxxxxxxxxx>]

For generic virtio devices, where we don't need to add compatible or
other special DT properties, the type field is set to "virtio,device".

But this misses the case where the user sets the type with a valid
virtio device id as well, like "virtio,device1a" for file system device.
The complete list of virtio device ids is mentioned here:

https://docs.oasis-open.org/virtio/virtio/v1.2/cs01/virtio-v1.2-cs01.html#x1-2160005

Update documentation to support that as well.

Fixes: dd54ea500be8 ("docs: add documentation for generic virtio devices")
Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>
---
V2->V3:
- Updated commit log and clarified / fixed doc.
- Tag from Oleksandr.

 docs/man/xl.cfg.5.pod.in | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/docs/man/xl.cfg.5.pod.in b/docs/man/xl.cfg.5.pod.in
index 10f37990be57..24ac92718288 100644
--- a/docs/man/xl.cfg.5.pod.in
+++ b/docs/man/xl.cfg.5.pod.in
@@ -1608,8 +1608,11 @@ example, "type=virtio,device22" for the I2C device, 
whose device-tree binding is
 
 
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".
+For other 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" or "virtio,device<N>", where "N" is the virtio device id in
+hexadecimal format, without the "0x" prefix and all in lower case, like
+"virtio,device1a" for the file system device.
 
 =item B<transport=STRING>
 
-- 
2.31.1.272.g89b43f80a514