Changeset 30040 in vbox for trunk/src/VBox/Additions/common

Timestamp:

Jun 4, 2010 4:23:29 PM (15 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

62386

Message:

Part one of the page fusion test case

File:

• trunk/src/VBox/Additions/common/VBoxGuestLib/VBoxGuestR3LibModule.cpp (modified) (1 diff)

trunk/src/VBox/Additions/common/VBoxGuestLib/VBoxGuestR3LibModule.cpp

@@ -144 +144 @@
 }
 
+/**
+ * Checks if page sharing is enabled.
+ *
+ * @returns true/false enabled/disabled
+ */
+VBGLR3DECL(int) VbglR3PageIsShared(RTGCPTR pPage, bool *pfShared, bool *pfReadWrite)
+{
+#ifdef DEBUG
+    VMMDevPageIsSharedRequest Req;
+
+    vmmdevInitRequest(&Req.header, VMMDevReq_DebugIsPageShared);
+    Req.GCPtrPage = pPage;
+    int rc = vbglR3GRPerform(&Req.header);
+    if (RT_SUCCESS(rc))
+    {
+        *pfShared    = Req.fShared;
+        *pfReadWrite = Req.fReadWrite;
+    }
+    return rc;
+#else
+    return VERR_NOT_IMPLEMENTED;
+#endif
+}