[PATCH 13/18] memory/iommu: Add IOMMU_ATTR_MAX_IOVA attribute

[Avihai Horon]

Add a new IOMMU attribute IOMMU_ATTR_MAX_IOVA which indicates the
maximal IOVA that an IOMMU can use.

This attribute will be used by VFIO device dirty page tracking so it can
track the entire IOVA space when needed (i.e. when vIOMMU is enabled).

Signed-off-by: Avihai Horon <avihaih@nvidia.com>
---
 include/exec/memory.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/exec/memory.h b/include/exec/memory.h
index c37ffdbcd1..910067a3a5 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -290,7 +290,8 @@ typedef struct MemoryRegionClass {
 
 
 enum IOMMUMemoryRegionAttr {
-    IOMMU_ATTR_SPAPR_TCE_FD
+    IOMMU_ATTR_SPAPR_TCE_FD,
+    IOMMU_ATTR_MAX_IOVA,
 };
 
 /*
-- 
2.26.3