diff mbox series

[v2,15/20] memory/iommu: Add IOMMU_ATTR_MAX_IOVA attribute

Message ID 20230222174915.5647-16-avihaih@nvidia.com (mailing list archive)
State New, archived
Headers show
Series vfio: Add migration pre-copy support and device dirty tracking | expand

Commit Message

Avihai Horon Feb. 22, 2023, 5:49 p.m. UTC 
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>
Acked-by: Peter Xu <peterx@redhat.com>
---
 include/exec/memory.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/include/exec/memory.h b/include/exec/memory.h
index 2e602a2fad..cdd47fb79b 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -316,7 +316,8 @@  typedef struct MemoryRegionClass {
 
 
 enum IOMMUMemoryRegionAttr {
-    IOMMU_ATTR_SPAPR_TCE_FD
+    IOMMU_ATTR_SPAPR_TCE_FD,
+    IOMMU_ATTR_MAX_IOVA,
 };
 
 /*