Changeset 46672 in vbox

Timestamp:

Jun 19, 2013 3:54:24 PM (11 years ago)

Author:

vboxsync

Message:

VMM/HMSVMR0: VMCB Clean Bits MBZ when it's not supported by the CPU.

File:

• trunk/src/VBox/VMM/VMMR0/HMSVMR0.cpp (modified) (1 diff)

trunk/src/VBox/VMM/VMMR0/HMSVMR0.cpp

@@ -2506 +2506 @@
     STAM_COUNTER_INC(&pVCpu->hm.s.StatLoadFull);
 
+    /* If VMCB Clean Bits isn't supported by the CPU, simply mark all state-bits as dirty, indicating (re)load-from-VMCB. */
+    if (!(pVM->hm.s.svm.u32Features & AMD_CPUID_SVM_FEATURE_EDX_VMCB_CLEAN))
+        pVmcb->ctrl.u64VmcbCleanBits = 0;
+
     /*
      * If we're not intercepting TPR changes in the guest, save the guest TPR before the world-switch