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Subject[PATCH] xen: Make XEN_BACKEND selectable by DomU
Date
XEN_BACKEND doesn't actually depend on XEN_DOM0.  DomUs can serve
backends to other DomUs. One example is a service VM providing network
backends.

The original Kconfig defaulted Dom0 to y and it could be disabled. DomU
could not select the option. With the new Kconfig, we default y for
Dom0 and n for DomU. Either can then toggle the selection.

Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
---
OpenXT runs network backends in a network service DomU that shares out
PCI NICs.

drivers/xen/Kconfig | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index b459edfacff3..af1bf99318c6 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -101,8 +101,7 @@ config XEN_DEV_EVTCHN

config XEN_BACKEND
bool "Backend driver support"
- depends on XEN_DOM0
- default y
+ default y if XEN_DOM0
help
Support for backend device drivers that provide I/O services
to other virtual machines.
--
2.17.1
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