docs: add spice-port-fqdn.txt
Start a simple org.qemu.* registry of well known name.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
diff --git a/docs/spice-port-fqdn.txt b/docs/spice-port-fqdn.txt
new file mode 100644
index 0000000..5077895
--- /dev/null
+++ b/docs/spice-port-fqdn.txt
@@ -0,0 +1,19 @@
+A Spice port channel is an arbitrary communication between the Spice
+server host side and the client side.
+
+Thanks to the associated reverse fully qualified domain name (fqdn),
+a Spice client can handle the various ports appropriately.
+
+The following fqdn names are reserved by the QEMU project:
+
+org.qemu.monitor.hmp.0
+ QEMU human monitor
+
+org.qemu.monitor.qmp.0:
+ QEMU control monitor
+
+org.qemu.console.serial.0
+ QEMU virtual serial port
+
+org.qemu.console.debug.0
+ QEMU debug console
