Index: /trunk/src/VBox/Devices/Bus/DevIommuAmd.cpp
===================================================================
--- /trunk/src/VBox/Devices/Bus/DevIommuAmd.cpp	(revision 84227)
+++ /trunk/src/VBox/Devices/Bus/DevIommuAmd.cpp	(revision 84228)
@@ -4282,5 +4282,5 @@
                 uint64_t const cbPhysPage = UINT64_C(1) << Iotlbe.cShift;
                 cbChecked += cbPhysPage;
-                if (cbAccess <= cbChecked)
+                if (cbChecked >= cbAccess)
                     break;
                 uBaseIova += cbPhysPage;