Changeset 38954 in vbox for trunk/src/VBox/VMM

Timestamp:

Oct 6, 2011 11:28:41 AM (13 years ago)

Author:

vboxsync

Message:

VMMR0: Triple fault debugging hack proof of concept.

Location:

trunk/src/VBox/VMM

Files:

• Makefile.kmk (modified) (2 diffs)
• VMMR0/VMMR0.cpp (modified) (2 diffs)
• VMMR0/VMMR0TripleFaultHack.cpp (added)
• include/VMMInternal.h (modified) (1 diff)

trunk/src/VBox/VMM/Makefile.kmk

@@ -453 +453 @@
   VMMR0_DEFS    += IN_PCIRAW_R0
  endif
+ ifdef VBOX_WITH_TRIPLE_FAULT_HACK
+  VMMR0_DEFS    += VBOX_WITH_TRIPLE_FAULT_HACK
+ endif
  VMMR0_DEFS.darwin = VMM_R0_SWITCH_STACK
  VMMR0_DEFS.darwin.x86 = \
@@ -521 +524 @@
   VMMR0_SOURCES += $(VMMR0Imp_0_OUTDIR)/VMMR0.def
  endif
+ ifdef VBOX_WITH_TRIPLE_FAULT_HACK
+  VMMR0_SOURCES += \
+        VMMR0/VMMR0TripleFaultHack.cpp \
+        VMMR0/VMMR0TripleFaultHackA.asm
+ endif
  VMMR0_SOURCES.amd64 = \
         VMMR0/VMMR0JmpA-amd64.asm

trunk/src/VBox/VMM/VMMR0/VMMR0.cpp

@@ -144 +144 @@
                                 if (RT_SUCCESS(rc))
                                 {
-                                    LogFlow(("ModuleInit: returns success.\n"));
-                                    return VINF_SUCCESS;
+#ifdef VBOX_WITH_TRIPLE_FAULT_HACK
+                                    rc = vmmR0TripleFaultHackInit();
+                                    if (RT_SUCCESS(rc))
+#endif
+                                    {
+                                        LogFlow(("ModuleInit: returns success.\n"));
+                                        return VINF_SUCCESS;
+                                    }
+
+                                    /*
+                                     * Bail out.
+                                     */
+#ifdef VBOX_WITH_TRIPLE_FAULT_HACK
+                                    vmmR0TripleFaultHackTerm();
+#endif
                                 }
-
-                                /*
-                                 * Bail out.
-                                 */
 #ifdef VBOX_WITH_PCI_PASSTHROUGH
                                 PciRawR0Term();
@@ -204 +213 @@
     PGMDeregisterStringFormatTypes();
     HWACCMR0Term();
+#ifdef VBOX_WITH_TRIPLE_FAULT_HACK
+    vmmR0TripleFaultHackTerm();
+#endif
 
     /*

trunk/src/VBox/VMM/include/VMMInternal.h

@@ -603 +603 @@
 VMMR0DECL(size_t) vmmR0LoggerPrefix(PRTLOGGER pLogger, char *pchBuf, size_t cchBuf, void *pvUser);
 
+# ifdef VBOX_WITH_TRIPLE_FAULT_HACK
+int  vmmR0TripleFaultHackInit(void);
+void vmmR0TripleFaultHackTerm(void);
+# endif
+
 #endif /* IN_RING0 */
 #ifdef IN_RC