xen: introduce a Kconfig option to enable the pvcalls backend
Also add pvcalls-back to the Makefile.
Signed-off-by: Stefano Stabellini <stefano@aporeto.com>
Reviewed-by: Juergen Gross <jgross@suse.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 f15bb3b7..4545561 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -196,6 +196,18 @@
If in doubt, say m.
+config XEN_PVCALLS_BACKEND
+ bool "XEN PV Calls backend driver"
+ depends on INET && XEN && XEN_BACKEND
+ default n
+ help
+ Experimental backend for the Xen PV Calls protocol
+ (https://xenbits.xen.org/docs/unstable/misc/pvcalls.html). It
+ allows PV Calls frontends to send POSIX calls to the backend,
+ which implements them.
+
+ If in doubt, say n.
+
config XEN_SCSI_BACKEND
tristate "XEN SCSI backend driver"
depends on XEN && XEN_BACKEND && TARGET_CORE