diff --git a/repos/ports/lib/mk/virtualbox-vmm.mk b/repos/ports/lib/mk/virtualbox-vmm.mk
index 219707a6a..a2a0c2b09 100644
--- a/repos/ports/lib/mk/virtualbox-vmm.mk
+++ b/repos/ports/lib/mk/virtualbox-vmm.mk
@@ -55,6 +55,8 @@ SRC_CC += VMM/VMMAll/SELMAll.cpp
 
 SRC_CC += VMM/VMMAll/REMAll.cpp
 
+SRC_CC += VMM/VMMR3/VMMGuruMeditation.cpp
+
 CC_OPT += -DVBOX_IN_VMM
 
 # definitions needed by SSM.cpp
diff --git a/repos/ports/src/virtualbox/dummies.cc b/repos/ports/src/virtualbox/dummies.cc
index 22d617767..495aa8077 100644
--- a/repos/ports/src/virtualbox/dummies.cc
+++ b/repos/ports/src/virtualbox/dummies.cc
@@ -101,6 +101,12 @@ int  DBGFR3RegRegisterDevice(PVM, PCDBGFREGDESC, PPDMDEVINS, const char*,
 int  DBGFR3AsSymbolByAddr(PUVM, RTDBGAS, PCDBGFADDRESS, uint32_t, PRTGCINTPTR,
                           PRTDBGSYMBOL, PRTDBGMOD)                              TRACE(VERR_INVALID_HANDLE)
 int DBGFR3Term(PVM)                                                             TRACE(VINF_SUCCESS)
+int DBGFR3Event(PVM pVM, DBGFEVENTTYPE enmEvent)
+{
+	PDBG("%u", enmEvent);
+
+	TRACE(VERR_NOT_SUPPORTED)
+}
 
 
 /* called by 'VMMR3InitRC', but we don't use GC */
diff --git a/repos/ports/src/virtualbox/unimpl.cc b/repos/ports/src/virtualbox/unimpl.cc
index 4ca9f8471..86755d6eb 100644
--- a/repos/ports/src/virtualbox/unimpl.cc
+++ b/repos/ports/src/virtualbox/unimpl.cc
@@ -28,13 +28,16 @@ DUMMY(RTErrCOMGet)
 
 DUMMY(DBGFR3CoreWrite)
 DUMMY(DBGCRegisterCommands)
-DUMMY(DBGFR3Event)
 DUMMY(DBGFR3EventAssertion)
 DUMMY(DBGFR3EventBreakpoint)
 DUMMY(DBGFR3EventSrc)
 DUMMY(DBGFR3VMMForcedAction)
 DUMMY(DBGFR3DisasInstrEx)
 DUMMY(DBGFR3DisasInstrCurrentLogInternal)
+DUMMY(DBGFR3StackWalkBegin)
+DUMMY(DBGFR3StackWalkBeginEx)
+DUMMY(DBGFR3StackWalkNext)
+DUMMY(DBGFR3StackWalkEnd)
 
 DUMMY(HMInvalidatePage)
 DUMMY(HMFlushTLB)
@@ -58,6 +61,7 @@ DUMMY(MMR3HeapAPrintfV)
 DUMMY(MMR3LockCall)
 DUMMY(PDMR3AsyncCompletionTemplateCreateDriver)
 DUMMY(PDMR3LdrGetInterfaceSymbols)
+DUMMY(PDMR3LdrQueryRCModFromPC)
 DUMMY(PDMCritSectBothFF)
 
 DUMMY(PGMNotifyNxeChanged)
@@ -134,7 +138,6 @@ DUMMY(SUPR3HardenedLdrLoadPlugIn)
 DUMMY(SUPSemEventMultiWaitNoResume)
 DUMMY(SUPSemEventMultiReset)
 
-DUMMY(VMMR3FatalDump)
 DUMMY(VMMR3GetHostToGuestSwitcher)
 
 DUMMY(RTHeapSimpleRelocate)