[Xen-devel] [PATCH 3/6] arm: make it possible to disable the SMMU driver

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

Introduce a Kconfig option for the ARM SMMUv2 driver.

Signed-off-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
CC: jbeulich@xxxxxxxx
---
 xen/drivers/passthrough/Kconfig      | 2 ++
 xen/drivers/passthrough/arm/Kconfig  | 7 +++++++
 xen/drivers/passthrough/arm/Makefile | 2 +-
 3 files changed, 10 insertions(+), 1 deletion(-)
 create mode 100644 xen/drivers/passthrough/arm/Kconfig

diff --git a/xen/drivers/passthrough/Kconfig b/xen/drivers/passthrough/Kconfig
index 8d90b67..2fe94fa 100644
--- a/xen/drivers/passthrough/Kconfig
+++ b/xen/drivers/passthrough/Kconfig
@@ -1,3 +1,5 @@
 
 config HAS_PASSTHROUGH
        bool
+
+source "drivers/passthrough/arm/Kconfig"
diff --git a/xen/drivers/passthrough/arm/Kconfig 
b/xen/drivers/passthrough/arm/Kconfig
new file mode 100644
index 0000000..98318d9
--- /dev/null
+++ b/xen/drivers/passthrough/arm/Kconfig
@@ -0,0 +1,7 @@
+
+config HAS_SMMUv2
+       bool "ARM SMMUv2 driver"
+       default y
+       depends on ARM
+       ---help---
+         Driver for the ARM SMMU version 2, a popular IOMMU by ARM.
diff --git a/xen/drivers/passthrough/arm/Makefile 
b/xen/drivers/passthrough/arm/Makefile
index f4cd26e..4db273a 100644
--- a/xen/drivers/passthrough/arm/Makefile
+++ b/xen/drivers/passthrough/arm/Makefile
@@ -1,2 +1,2 @@
 obj-y += iommu.o
-obj-y += smmu.o
+obj-$(HAS_SMMUv2) += smmu.o
-- 
1.9.1


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