linux-kernel - [PATCH 18/18] xen: introduce a Kconfig option to enable the pvcalls backend

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Message-Id: <1494880570-14209-18-git-send-email-sstabellini@kernel.org>
Date:   Mon, 15 May 2017 13:36:10 -0700
From:   Stefano Stabellini <sstabellini@...nel.org>
To:     xen-devel@...ts.xen.org
Cc:     linux-kernel@...r.kernel.org, sstabellini@...nel.org,
        jgross@...e.com, boris.ostrovsky@...cle.com,
        Stefano Stabellini <stefano@...reto.com>
Subject: [PATCH 18/18] xen: introduce a Kconfig option to enable the pvcalls backend

Also add pvcalls-back to the Makefile.

Signed-off-by: Stefano Stabellini <stefano@...reto.com>
CC: boris.ostrovsky@...cle.com
CC: jgross@...e.com
---
 drivers/xen/Kconfig  | 12 ++++++++++++
 drivers/xen/Makefile |  1 +
 2 files changed, 13 insertions(+)

diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index f15bb3b7..bbdf059 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -196,6 +196,18 @@ config XEN_PCIDEV_BACKEND
 
 	  If in doubt, say m.
 
+config XEN_PVCALLS_BACKEND
+	bool "XEN PV Calls backend driver"
+	depends on INET && XEN
+	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
diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile
index 8feab810..480b928 100644
--- a/drivers/xen/Makefile
+++ b/drivers/xen/Makefile
@@ -38,6 +38,7 @@ obj-$(CONFIG_XEN_ACPI_PROCESSOR)	+= xen-acpi-processor.o
 obj-$(CONFIG_XEN_EFI)			+= efi.o
 obj-$(CONFIG_XEN_SCSI_BACKEND)		+= xen-scsiback.o
 obj-$(CONFIG_XEN_AUTO_XLATE)		+= xlate_mmu.o
+obj-$(CONFIG_XEN_PVCALLS_BACKEND)	+= pvcalls-back.o
 xen-evtchn-y				:= evtchn.o
 xen-gntdev-y				:= gntdev.o
 xen-gntalloc-y				:= gntalloc.o
-- 
1.9.1