Changeset 8503 in vbox for trunk/src/VBox/VMM/VMMAll

Timestamp:

Apr 30, 2008 11:25:42 AM (17 years ago)

Author:

vboxsync

Message:

Fall back to the recompiler when the guest tries to access invalid physical memory (e.g. probing RAM or accessing remapping MMIO memory)

File:

• trunk/src/VBox/VMM/VMMAll/PGMAllBth.h (modified) (1 diff)

trunk/src/VBox/VMM/VMMAll/PGMAllBth.h

@@ -542 +542 @@
 # endif /* PGM_WITH_PAGING(PGM_GST_TYPE) */
             }
+            else
+            {
+                /* When the guest accesses invalid physical memory (e.g. probing of RAM or accessing a remapped MMIO range), then we'll fall 
+                 * back to the recompiler to emulate the instruction.
+                 */
+                LogFlow(("pgmPhysGetPageEx %VGp failed with %Vrc\n", GCPhys, rc));
+                STAM_COUNTER_INC(&pVM->pgm.s.StatHandlersInvalid);
+                STAM_PROFILE_STOP(&pVM->pgm.s.StatHandlers, b);
+                return VINF_EM_RAW_EMULATE_INSTR;
+            }
+
             STAM_PROFILE_STOP(&pVM->pgm.s.StatHandlers, b);