[RFC PATCH v1 04/15] iommu: Add DOMAIN_ATTR_PTBASE

From: Jordan Crouse
Date: Fri Mar 01 2019 - 14:38:53 EST


Add an attribute to return the base address of the pagetable. This is used
by auxiliary domains from arm-smmu to return the address of the pagetable
to the leaf driver so that it can set the appropriate pagetable through
it's own means.

Signed-off-by: Jordan Crouse <jcrouse@xxxxxxxxxxxxxx>
---

include/linux/iommu.h | 1 +
1 file changed, 1 insertion(+)

diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 3f2250b..dc60a71 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -126,6 +126,7 @@ enum iommu_attr {
DOMAIN_ATTR_NESTING, /* two stages of translation */
DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE,
DOMAIN_ATTR_SPLIT_TABLES,
+ DOMAIN_ATTR_PTBASE,
DOMAIN_ATTR_MAX,
};

--
2.7.4