[PATCH v3 3/3] qemu-options: updates for abstract unix sockets

[xiaoqiang zhao <zxq_yx_007@163.com>]

add options documents changes for -chardev

Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com>
---
 qemu-options.hx | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/qemu-options.hx b/qemu-options.hx
index 292d4e7c0c..ce73014f8e 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -2930,7 +2930,7 @@ DEF("chardev", HAS_ARG, QEMU_OPTION_chardev,
     "         [,server][,nowait][,telnet][,websocket][,reconnect=seconds][,mux=on|off]\n"
     "         [,logfile=PATH][,logappend=on|off][,tls-creds=ID][,tls-authz=ID] (tcp)\n"
     "-chardev socket,id=id,path=path[,server][,nowait][,telnet][,websocket][,reconnect=seconds]\n"
-    "         [,mux=on|off][,logfile=PATH][,logappend=on|off] (unix)\n"
+    "         [,mux=on|off][,logfile=PATH][,logappend=on|off][,tight=on|off][,abstract=on|off] (unix)\n"
     "-chardev udp,id=id[,host=host],port=port[,localaddr=localaddr]\n"
     "         [,localport=localport][,ipv4][,ipv6][,mux=on|off]\n"
     "         [,logfile=PATH][,logappend=on|off]\n"
@@ -3097,9 +3097,14 @@ The available backends are:
 
         ``nodelay`` disables the Nagle algorithm.
 
-    ``unix options: path=path``
+    ``unix options: path=path[,tight=on|off][,abstract=on|off]``
         ``path`` specifies the local path of the unix socket. ``path``
         is required.
+	``tight`` whether to set @addrlen to the minimal string length,
+        or the maximum sun_path length. defaults to true. ``tight`` is
+        optional.
+	``abstract`` whether use abstract address. defaults to false.
+	``abstract`` is optional.
 
 ``-chardev udp,id=id[,host=host],port=port[,localaddr=localaddr][,localport=localport][,ipv4][,ipv6]``
     Sends all traffic from the guest to a remote host over UDP.
-- 
2.17.1