1 files changed, 32 insertions, 6 deletions

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 46e1b1a..797d681 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2953,12 +2953,38 @@ config XEN_NETDEV_FRONTEND
 	select XEN_XENBUS_FRONTEND
 	default y
 	help
-	  The network device frontend driver allows the kernel to
-	  access network devices exported exported by a virtual
-	  machine containing a physical network device driver. The
-	  frontend driver is intended for unprivileged guest domains;
-	  if you are compiling a kernel for a Xen guest, you almost
-	  certainly want to enable this.
+	  This driver provides support for Xen paravirtual network
+	  devices exported by a Xen network driver domain (often
+	  domain 0).
+
+	  The corresponding Linux backend driver is enabled by the
+	  CONFIG_XEN_NETDEV_BACKEND option.
+
+	  If you are compiling a kernel for use as Xen guest, you
+	  should say Y here. To compile this driver as a module, chose
+	  M here: the module will be called xen-netfront.
+
+config XEN_NETDEV_BACKEND
+	tristate "Xen backend network device"
+	depends on XEN_BACKEND
+	help
+	  This driver allows the kernel to act as a Xen network driver
+	  domain which exports paravirtual network devices to other
+	  Xen domains. These devices can be accessed by any operating
+	  system that implements a compatible front end.
+
+	  The corresponding Linux frontend driver is enabled by the
+	  CONFIG_XEN_NETDEV_FRONTEND configuration option.
+
+	  The backend driver presents a standard network device
+	  endpoint for each paravirtual network device to the driver
+	  domain network stack. These can then be bridged or routed
+	  etc in order to provide full network connectivity.
+
+	  If you are compiling a kernel to run in a Xen network driver
+	  domain (often this is domain 0) you should say Y here. To
+	  compile this driver as a module, chose M here: the module
+	  will be called xen-netback.
 
 config ISERIES_VETH
 	tristate "iSeries Virtual Ethernet driver support"