Changeset 74512 in vbox for trunk

Timestamp:

Sep 28, 2018 6:56:26 AM (6 years ago)

Author:

vboxsync

Message:

VMM/CPUM: Nested VMX: bugref:9180 Paranoia, since our code does not check secondary processor-based controls each time it
checks one of its sub-controls.

File:

• trunk/src/VBox/VMM/VMMR3/CPUM.cpp (modified) (1 diff)

trunk/src/VBox/VMM/VMMR3/CPUM.cpp

@@ -1428 +1428 @@
     pGuestFeat->fVmxVmwriteAll            = (pBaseFeat->fVmxVmwriteAll            & EmuFeat.fVmxVmwriteAll           );
     pGuestFeat->fVmxEntryInjectSoftInt    = (pBaseFeat->fVmxEntryInjectSoftInt    & EmuFeat.fVmxEntryInjectSoftInt   );
+
+    /* Paranoia. */
+    if (!pGuestFeat->fVmxSecondaryExecCtls)
+    {
+        Assert(!pGuestFeat->fVmxVirtApicAccess);
+        Assert(!pGuestFeat->fVmxEpt);
+        Assert(!pGuestFeat->fVmxDescTableExit);
+        Assert(!pGuestFeat->fVmxRdtscp);
+        Assert(!pGuestFeat->fVmxVirtX2ApicMode);
+        Assert(!pGuestFeat->fVmxVpid);
+        Assert(!pGuestFeat->fVmxWbinvdExit);
+        Assert(!pGuestFeat->fVmxUnrestrictedGuest);
+        Assert(!pGuestFeat->fVmxApicRegVirt);
+        Assert(!pGuestFeat->fVmxVirtIntDelivery);
+        Assert(!pGuestFeat->fVmxPauseLoopExit);
+        Assert(!pGuestFeat->fVmxRdrandExit);
+        Assert(!pGuestFeat->fVmxInvpcid);
+        Assert(!pGuestFeat->fVmxVmFunc);
+        Assert(!pGuestFeat->fVmxVmcsShadowing);
+        Assert(!pGuestFeat->fVmxRdseedExit);
+        Assert(!pGuestFeat->fVmxPml);
+        Assert(!pGuestFeat->fVmxEptXcptVe);
+        Assert(!pGuestFeat->fVmxXsavesXrstors);
+        Assert(!pGuestFeat->fVmxUseTscScaling);
+    }
 }