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-rw-r--r--docs/interop/vhost-user.rst32
1 files changed, 32 insertions, 0 deletions
diff --git a/docs/interop/vhost-user.rst b/docs/interop/vhost-user.rst
index 7827b710aa..5f8b3a456b 100644
--- a/docs/interop/vhost-user.rst
+++ b/docs/interop/vhost-user.rst
@@ -785,6 +785,7 @@ Protocol features
   #define VHOST_USER_PROTOCOL_F_SLAVE_SEND_FD  10
   #define VHOST_USER_PROTOCOL_F_HOST_NOTIFIER  11
   #define VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD 12
+  #define VHOST_USER_PROTOCOL_F_RESET_DEVICE   13
 
 Master message types
 --------------------
@@ -1190,6 +1191,20 @@ Master message types
   ancillary data. The GPU protocol is used to inform the master of
   rendering state and updates. See vhost-user-gpu.rst for details.
 
+``VHOST_USER_RESET_DEVICE``
+  :id: 34
+  :equivalent ioctl: N/A
+  :master payload: N/A
+  :slave payload: N/A
+
+  Ask the vhost user backend to disable all rings and reset all
+  internal device state to the initial state, ready to be
+  reinitialized. The backend retains ownership of the device
+  throughout the reset operation.
+
+  Only valid if the ``VHOST_USER_PROTOCOL_F_RESET_DEVICE`` protocol
+  feature is set by the backend.
+
 Slave message types
 -------------------
 
@@ -1376,3 +1391,20 @@ Command line options:
   Enable virgl rendering support.
 
   (optional)
+
+vhost-user-blk
+--------------
+
+Command line options:
+
+--blk-file=PATH
+
+  Specify block device or file path.
+
+  (optional)
+
+--read-only
+
+  Enable read-only.
+
+  (optional)