[PATCH v1 1/6] iommu: Add DOMAIN_ATTR_PTBASE

[Jordan Crouse]

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 domain so that it can set the appropriate pagetable through it's
own means.

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

 include/linux/iommu.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index b14398b..0e9bcd9 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -128,6 +128,8 @@ enum iommu_attr {
 	DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE,
 	/* Enable split pagetables (for example, TTBR1 on arm-smmu) */
 	DOMAIN_ATTR_SPLIT_TABLES,
+	/* Return the pagetable base address */
+	DOMAIN_ATTR_PTBASE,
 	DOMAIN_ATTR_MAX,
 };
 
-- 
2.7.4