On 12/06/2021 03:14, Lu Baolu wrote:
On 2021/6/11 20:20, John Garry wrote:
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 2a71347611d4..4467353f981b 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -94,6 +94,7 @@ choice
prompt "IOMMU default DMA mode"
depends on IOMMU_DMA
+ default IOMMU_DEFAULT_LAZY if INTEL_IOMMU
default IOMMU_DEFAULT_STRICT
If two default values are different. Which one will be overridden?
If I understand your question correctly, I think you are asking if both
are set:
CONFIG_IOMMU_DEFAULT_LAZY=y
CONFIG_IOMMU_DEFAULT_STRICT=y
If this happens, then make defconfig complains about both being set, and
selects the 2nd, whatever that is.
If neither are set, then IOMMU_DEFAULT_LAZY is set if INTEL_IOMMU is
set, otherwise IOMMU_DEFAULT_STRICT.
Thanks,
John
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
