Index: /trunk/src/VBox/HostDrivers/Support/SUPDrv.c
===================================================================
--- /trunk/src/VBox/HostDrivers/Support/SUPDrv.c	(revision 41066)
+++ /trunk/src/VBox/HostDrivers/Support/SUPDrv.c	(revision 41067)
@@ -3953,9 +3953,7 @@
     pReq->u.Out.fNeedsLoading = true;
     pReq->u.Out.fNativeLoader = pImage->fNative;
+    supdrvOSLdrNotifyOpened(pDevExt, pImage);
+
     supdrvLdrUnlock(pDevExt);
-
-#if defined(RT_OS_WINDOWS) && defined(DEBUG)
-    SUPR0Printf("VBoxDrv: windbg> .reload /f %s=%#p\n", pImage->szName, pImage->pvImage);
-#endif
     return VINF_SUCCESS;
 }
Index: /trunk/src/VBox/HostDrivers/Support/SUPDrvInternal.h
===================================================================
--- /trunk/src/VBox/HostDrivers/Support/SUPDrvInternal.h	(revision 41066)
+++ /trunk/src/VBox/HostDrivers/Support/SUPDrvInternal.h	(revision 41067)
@@ -602,4 +602,14 @@
 
 /**
+ * Notification call indicating that a image is being opened for the first time.
+ *
+ * Can be used to log the load address of the image.
+ *
+ * @param   pDevExt             The device globals.
+ * @param   pImage              The image handle.
+ */
+void VBOXCALL   supdrvOSLdrNotifyOpened(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage);
+
+/**
  * Validates an entry point address.
  *
Index: /trunk/src/VBox/HostDrivers/Support/darwin/SUPDrv-darwin.cpp
===================================================================
--- /trunk/src/VBox/HostDrivers/Support/darwin/SUPDrv-darwin.cpp	(revision 41066)
+++ /trunk/src/VBox/HostDrivers/Support/darwin/SUPDrv-darwin.cpp	(revision 41067)
@@ -64,4 +64,5 @@
 #include <IOKit/IOUserClient.h>
 #include <IOKit/pwr_mgt/RootDomain.h>
+#include <IOKit/IODeviceTreeSupport.h>
 
 #ifdef VBOX_WITH_HOST_VMX
@@ -760,4 +761,28 @@
 
 
+void VBOXCALL   supdrvOSLdrNotifyOpened(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage)
+{
+#if 1
+    NOREF(pDevExt); NOREF(pImage);
+#else
+    /* Put
+    IORegistryEntry *pEntry = IORegistryEntry::fromPath("/options", gIODTPlane);
+    if (pEntry)
+    {
+        char szVar[80];
+        RTStrPrintf(szVar, sizeof(szVar), "vboximage-%s", pImage->szName);
+        char szValue[48];
+        RTStrPrintf(szValue, sizeof(szValue), "%#llx,%#llx", (uint64_t)(uintptr_t)pImage->pvImage,
+                    (uint64_t)(uintptr_t)pImage->pvImage + pImage->cbImageBits - 1);
+        bool fRc = pEntry->setProperty(szVar, szValue); NOREF(fRc);
+        pEntry->release();
+        /*SUPR0Printf("fRc=%d '%s'='%s'\n", fRc, szVar, szValue);*/
+    }
+    /*else
+        SUPR0Printf("failed to find /options in gIODTPlane\n");*/
+#endif
+}
+
+
 int  VBOXCALL   supdrvOSLdrOpen(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage, const char *pszFilename)
 {
Index: /trunk/src/VBox/HostDrivers/Support/freebsd/SUPDrv-freebsd.c
===================================================================
--- /trunk/src/VBox/HostDrivers/Support/freebsd/SUPDrv-freebsd.c	(revision 41066)
+++ /trunk/src/VBox/HostDrivers/Support/freebsd/SUPDrv-freebsd.c	(revision 41067)
@@ -498,4 +498,10 @@
 
 
+void VBOXCALL   supdrvOSLdrNotifyOpened(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage)
+{
+    NOREF(pDevExt); NOREF(pImage);
+}
+
+
 int  VBOXCALL   supdrvOSLdrValidatePointer(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage, void *pv, const uint8_t *pbImageBits)
 {
Index: /trunk/src/VBox/HostDrivers/Support/linux/SUPDrv-linux.c
===================================================================
--- /trunk/src/VBox/HostDrivers/Support/linux/SUPDrv-linux.c	(revision 41066)
+++ /trunk/src/VBox/HostDrivers/Support/linux/SUPDrv-linux.c	(revision 41067)
@@ -734,4 +734,10 @@
 
 
+void VBOXCALL   supdrvOSLdrNotifyOpened(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage)
+{
+    NOREF(pDevExt); NOREF(pImage);
+}
+
+
 int  VBOXCALL   supdrvOSLdrValidatePointer(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage, void *pv, const uint8_t *pbImageBits)
 {
Index: /trunk/src/VBox/HostDrivers/Support/os2/SUPDrv-os2.cpp
===================================================================
--- /trunk/src/VBox/HostDrivers/Support/os2/SUPDrv-os2.cpp	(revision 41066)
+++ /trunk/src/VBox/HostDrivers/Support/os2/SUPDrv-os2.cpp	(revision 41067)
@@ -386,4 +386,10 @@
 
 
+void VBOXCALL   supdrvOSLdrNotifyOpened(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage)
+{
+    NOREF(pDevExt); NOREF(pImage);
+}
+
+
 int  VBOXCALL   supdrvOSLdrValidatePointer(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage, void *pv, const uint8_t *pbImageBits)
 {
Index: /trunk/src/VBox/HostDrivers/Support/solaris/SUPDrv-solaris.c
===================================================================
--- /trunk/src/VBox/HostDrivers/Support/solaris/SUPDrv-solaris.c	(revision 41066)
+++ /trunk/src/VBox/HostDrivers/Support/solaris/SUPDrv-solaris.c	(revision 41067)
@@ -995,4 +995,10 @@
 
 
+void VBOXCALL   supdrvOSLdrNotifyOpened(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage)
+{
+    NOREF(pDevExt); NOREF(pImage);
+}
+
+
 int  VBOXCALL   supdrvOSLdrValidatePointer(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage, void *pv, const uint8_t *pbImageBits)
 {
@@ -1139,4 +1145,10 @@
 
 
+void VBOXCALL   supdrvOSLdrNotifyOpened(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage)
+{
+    NOREF(pDevExt); NOREF(pImage);
+}
+
+
 int  VBOXCALL   supdrvOSLdrValidatePointer(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage, void *pv, const uint8_t *pbImageBits)
 {
Index: /trunk/src/VBox/HostDrivers/Support/win/SUPDrv-win.cpp
===================================================================
--- /trunk/src/VBox/HostDrivers/Support/win/SUPDrv-win.cpp	(revision 41066)
+++ /trunk/src/VBox/HostDrivers/Support/win/SUPDrv-win.cpp	(revision 41067)
@@ -250,8 +250,8 @@
 
     /*
-     * Don't create a session for kernel clients, they'll close the handle 
-     * immediately and work with the file object via 
-     * VBoxDrvNtInternalDeviceControl.  The first request will there be one 
-     * to create a session. 
+     * Don't create a session for kernel clients, they'll close the handle
+     * immediately and work with the file object via
+     * VBoxDrvNtInternalDeviceControl.  The first request will there be one
+     * to create a session.
      */
     NTSTATUS rcNt;
@@ -503,7 +503,7 @@
             {
                 /*
-                 * Call the generic code. 
-                 *  
-                 * Note! Connect and disconnect requires some extra attention 
+                 * Call the generic code.
+                 *
+                 * Note! Connect and disconnect requires some extra attention
                  *       in order to get the session handling right.
                  */
@@ -780,4 +780,10 @@
 
 
+void VBOXCALL   supdrvOSLdrNotifyOpened(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage)
+{
+    NOREF(pDevExt); NOREF(pImage);
+}
+
+
 int  VBOXCALL   supdrvOSLdrValidatePointer(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage, void *pv, const uint8_t *pbImageBits)
 {