[PATCH 1/6] exec/memory: Introduce the translate_size function within the IOMMU class

[Ethan Chen]

IOMMU have size information during translation.

Signed-off-by: Ethan Chen <ethan84@andestech.com>
---
 include/exec/memory.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/include/exec/memory.h b/include/exec/memory.h
index 9087d02769..5520b7c8c0 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -396,6 +396,25 @@ struct IOMMUMemoryRegionClass {
      */
     IOMMUTLBEntry (*translate)(IOMMUMemoryRegion *iommu, hwaddr addr,
                                IOMMUAccessFlags flag, int iommu_idx);
+    /**
+     * @translate_size:
+     *
+     * Return a TLB entry that contains a given address and size.
+     *
+     * @iommu: the IOMMUMemoryRegion
+     *
+     * @hwaddr: address to be translated within the memory region
+     *
+     * @size: size to indicate the scope of the entire transaction
+     *
+     * @flag: requested access permission
+     *
+     * @iommu_idx: IOMMU index for the translation
+     */
+    IOMMUTLBEntry (*translate_size)(IOMMUMemoryRegion *iommu, hwaddr addr,
+                                    hwaddr size, IOMMUAccessFlags flag,
+                                    int iommu_idx);
+
     /**
      * @get_min_page_size:
      *
-- 
2.34.1