xen/blkback: Flesh out the description in the Kconfig.
with more details.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index 9abb646..717d6e4 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -478,6 +478,19 @@
block devices to other guests via a high-performance shared-memory
interface.
+ The corresponding Linux frontend driver is enabled by the
+ CONFIG_XEN_BLKDEV_FRONTEND configuration option.
+
+ The backend driver attaches itself to a any block device specified
+ in the XenBus configuration. There are no limits to what the block
+ device as long as it has a major and minor.
+
+ If you are compiling a kernel to run in a Xen block backend 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-blkback.
+
+
config VIRTIO_BLK
tristate "Virtio block driver (EXPERIMENTAL)"
depends on EXPERIMENTAL && VIRTIO