xen: pvblock: Add initial support for para-virtualized block driver
Add initial infrastructure for Xen para-virtualized block device.
This includes compile-time configuration and the skeleton for
the future driver implementation.
Add new class UCLASS_PVBLOCK which is going to be a parent for
virtual block devices.
Add new interface type IF_TYPE_PVBLOCK.
Implement basic driver setup by reading XenStore configuration.
Signed-off-by: Andrii Anisov <andrii_anisov@epam.com>
Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com>
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile
index 243b132..87157df 100644
--- a/drivers/xen/Makefile
+++ b/drivers/xen/Makefile
@@ -6,3 +6,5 @@
obj-y += events.o
obj-y += xenbus.o
obj-y += gnttab.o
+
+obj-$(CONFIG_PVBLOCK) += pvblock.o