vnc: list the 'to' parameter of '-vnc' in the qemu man page

Signed-off-by: Robert Ho <robert.hu@intel.com>
Message-Id: <1464678190-9290-2-git-send-email-robert.hu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/qemu-options.hx b/qemu-options.hx
index 9f333618765f69b13a3eb77df57bf41fb2905a25..c433143f76e2bb30415fb6cddde340a6c868efe2 100644 (file)
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -1241,6 +1241,13 @@ syntax for the @var{display} is
 
 @table @option
 
+@item to=@var{L}
+
+With this option, QEMU will try next available VNC @var{display}s, until the
+number @var{L}, if the origianlly defined "-vnc @var{display}" is not
+available, e.g. port 5900+@var{display} is already used by another
+application. By default, to=0.
+
 @item @var{host}:@var{d}
 
 TCP connections will only be allowed from @var{host} on display @var{d}.