[PATCH v1 4/5] mdev: Update sysfs documentation

[Parav Pandit]

Updated documentation for optional read only sysfs attribute.

Signed-off-by: Parav Pandit <parav@xxxxxxxxxxxx>
---
 Documentation/driver-api/vfio-mediated-device.rst | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/driver-api/vfio-mediated-device.rst b/Documentation/driver-api/vfio-mediated-device.rst
index 25eb7d5b834b..0ab03d3f5629 100644
--- a/Documentation/driver-api/vfio-mediated-device.rst
+++ b/Documentation/driver-api/vfio-mediated-device.rst
@@ -270,6 +270,7 @@ Directories and Files Under the sysfs for Each mdev Device
          |--- remove
          |--- mdev_type {link to its type}
          |--- vendor-specific-attributes [optional]
+         |--- alias [optional]
 
 * remove (write only)
 
@@ -281,6 +282,10 @@ Example::
 
 	# echo 1 > /sys/bus/mdev/devices/$mdev_UUID/remove
 
+* alias (read only)
+Whenever a parent requested to generate an alias, each mdev is assigned a unique
+alias by the mdev core. This file shows the alias of the mdev device.
+
 Mediated device Hot plug
 ------------------------
 
-- 
2.19.2