From: Penny Zheng <penny.zh...@arm.com>
In Xen, SMMU subsystem is supported for MMU system only. The reason being SMMU
driver uses the same page tables as MMU.
Thus, we make it dependent on CONFIG_MMU.
Signed-off-by: Penny Zheng <penny.zh...@arm.com>
Signed-off-by: Ayan Kumar Halder <ayan.kumar.hal...@amd.com>
---
xen/arch/arm/Kconfig | 2 +-
xen/drivers/passthrough/Kconfig | 3 ++-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/xen/arch/arm/Kconfig b/xen/arch/arm/Kconfig
index 15b2e4a227..3699e148e9 100644
--- a/xen/arch/arm/Kconfig
+++ b/xen/arch/arm/Kconfig
@@ -16,7 +16,7 @@ config ARM
select HAS_DEVICE_TREE
select HAS_PASSTHROUGH
select HAS_UBSAN
- select IOMMU_FORCE_PT_SHARE
+ select IOMMU_FORCE_PT_SHARE if MMU
config ARCH_DEFCONFIG
string
diff --git a/xen/drivers/passthrough/Kconfig b/xen/drivers/passthrough/Kconfig
index 78edd80536..75ad403dd3 100644
--- a/xen/drivers/passthrough/Kconfig
+++ b/xen/drivers/passthrough/Kconfig
@@ -5,6 +5,7 @@ config HAS_PASSTHROUGH
if ARM
config ARM_SMMU
bool "ARM SMMUv1 and v2 driver"
+ depends on MMU
default y
help
Support for implementations of the ARM System MMU architecture
@@ -15,7 +16,7 @@ config ARM_SMMU
config ARM_SMMU_V3
bool "ARM Ltd. System MMU Version 3 (SMMUv3) Support" if EXPERT
- depends on ARM_64 && (!ACPI || BROKEN)
+ depends on ARM_64 && (!ACPI || BROKEN) && MMU
help
Support for implementations of the ARM System MMU architecture
version 3. Driver is in experimental stage and should not be used in
--
2.25.1
