[Xen-devel] [PATCH v7 06/12] arm: make it possible to disable the SMMU driver

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

Introduce a Kconfig option for the ARM SMMUv1 and SMMUv2 driver.

Signed-off-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
Acked-by: Julien Grall <julien.grall@xxxxxxx>
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
CC: jbeulich@xxxxxxxx

---
Changes in v3:
- rename SMMUv2 to ARM_SMMU
- improve help message
- use if ARM

Changes in v2:
- rename HAS_SMMUv2 to SMMUv2
- move SMMUv2 to xen/drivers/passthrough/Kconfig
---
 xen/drivers/passthrough/Kconfig      | 12 ++++++++++++
 xen/drivers/passthrough/arm/Makefile |  2 +-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/xen/drivers/passthrough/Kconfig b/xen/drivers/passthrough/Kconfig
index 8d90b67..a3c0649 100644
--- a/xen/drivers/passthrough/Kconfig
+++ b/xen/drivers/passthrough/Kconfig
@@ -1,3 +1,15 @@
 
 config HAS_PASSTHROUGH
        bool
+
+if ARM
+config ARM_SMMU
+       bool "ARM SMMUv1 and v2 driver"
+       default y
+       ---help---
+         Support for implementations of the ARM System MMU architecture
+         versions 1 and 2.
+
+         Say Y here if your SoC includes an IOMMU device implementing the
+         ARM SMMU architecture.
+endif
diff --git a/xen/drivers/passthrough/arm/Makefile 
b/xen/drivers/passthrough/arm/Makefile
index f4cd26e..0156431 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-$(ARM_SMMU) += smmu.o
-- 
1.9.1


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