Clarify translation size when both stages are bare is imp-def

riscv-non-isa · Dec 12, 2024 · b768ca2 · b768ca2
1 parent a9b21e7
commit b768ca2
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/src/iommu_data_structures.adoc b/src/iommu_data_structures.adoc
@@ -1314,6 +1314,14 @@ This is accomplished by setting "Untranslated Access Only" (U) field of the
 returned response to 1.
 ====
 
+[NOTE]
+====
+The translation range size returned in a Success response to an ATS translation
+request, when both stages of address translation are Bare, is
+implementation-defined. However, it is recommended that the translation range
+size be large, such as 2 MiB or 1 GiB.
+====
+
 When a Success response is generated for an ATS translation request, the setting
 of the Priv, N, CXL.io, Global, and AMA fields is as follows: