Changeset 40776 in vbox

Timestamp:

Apr 5, 2012 1:43:02 PM (13 years ago)

Author:

vboxsync

Message:

VMM: Better handle protected pages in GC.

File:

• trunk/src/VBox/VMM/VMMAll/IOMAllMMIO.cpp (modified) (1 diff)

trunk/src/VBox/VMM/VMMAll/IOMAllMMIO.cpp

@@ -616 +616 @@
 #ifdef IN_RC
     NOREF(pVCpu);
-    return MMGCRamReadNoTrapHandler(pDest, (void *)(uintptr_t)GCSrc, cb);
+    int rc = MMGCRamReadNoTrapHandler(pDest, (void *)(uintptr_t)GCSrc, cb);
+    /* Page may be protected and not directly accessible. */
+    if (rc == VERR_ACCESS_DENIED)
+        rc = VINF_IOM_R3_IOPORT_WRITE;
+    return rc;
 #else
     return PGMPhysReadGCPtr(pVCpu, pDest, GCSrc, cb);