Changeset 78243 in vbox for trunk/src/VBox

Timestamp:

Apr 22, 2019 10:14:27 AM (6 years ago)

Author:

vboxsync

Message:

VMM/HMVMXR0: Nested VMX: bugref:9180 Fix for CPUs that do not have MSR-bitmaps.

File:

• trunk/src/VBox/VMM/VMMR0/HMVMXR0.cpp (modified) (1 diff)

trunk/src/VBox/VMM/VMMR0/HMVMXR0.cpp

@@ -3138 +3138 @@
 
     /* Set up MSR permissions that don't change through the lifetime of the VM. */
-    hmR0VmxSetupVmcsMsrPermissions(pVCpu, pVmcsInfo, false /* fIsNstGstVmcs */);
+    if (pVmcsInfo->u32ProcCtls & VMX_PROC_CTLS_USE_MSR_BITMAPS)
+        hmR0VmxSetupVmcsMsrPermissions(pVCpu, pVmcsInfo, false /* fIsNstGstVmcs */);
 
     /* Set up secondary processor-based VM-execution controls if the CPU supports it. */