xen: introduce a Kconfig option to enable the pvcalls frontend
Also add pvcalls-front to the Makefile.
Signed-off-by: Stefano Stabellini <stefano@aporeto.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
CC: boris.ostrovsky@oracle.com
CC: jgross@suse.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index 4545561..d8dd546 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -196,6 +196,17 @@
If in doubt, say m.
+config XEN_PVCALLS_FRONTEND
+ tristate "XEN PV Calls frontend driver"
+ depends on INET && XEN
+ default n
+ select XEN_XENBUS_FRONTEND
+ help
+ Experimental frontend for the Xen PV Calls protocol
+ (https://xenbits.xen.org/docs/unstable/misc/pvcalls.html). It
+ sends a small set of POSIX calls to the backend, which
+ implements them.
+
config XEN_PVCALLS_BACKEND
bool "XEN PV Calls backend driver"
depends on INET && XEN && XEN_BACKEND