uml: add VDE networking support

Added vde network backend in uml to introduce native Virtual Distributed
Ethernet support (using libvdeplug).

Signed-off-by: Luca Bigliardi <shammash@artha.org>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/arch/um/Kconfig.net b/arch/um/Kconfig.net
index 14a04ebdeae9..66e50026ade9 100644
--- a/arch/um/Kconfig.net
+++ b/arch/um/Kconfig.net
@@ -108,6 +108,28 @@ config UML_NET_DAEMON
         more than one without conflict.  If you don't need UML networking,
         say N.
 
+config UML_NET_VDE
+        bool "VDE transport"
+        depends on UML_NET
+        help
+        This User-Mode Linux network transport allows one or more running
+        UMLs on a single host to communicate with each other and also
+        with the rest of the world using Virtual Distributed Ethernet,
+        an improved fork of uml_switch.
+
+        You must have libvdeplug installed in order to build the vde
+        transport into UML.
+
+        To use this form of networking, you will need to run vde_switch
+        on the host.
+
+        For more information, see <http://wiki.virtualsquare.org/>
+        That site has a good overview of what VDE is and also examples
+        of the UML command line to use to enable VDE networking.
+
+        If you need UML networking with VDE,
+        say Y.
+
 config UML_NET_MCAST
         bool "Multicast transport"
         depends on UML_NET