Changeset 57036 in vbox for trunk

Timestamp:

Jul 21, 2015 9:54:36 AM (9 years ago)

Author:

vboxsync

Message:

VMM/HM: Log when we IA32_FEATURE_CONTROL MSR does not have the lock bit set.

File:

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

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

@@ -1039 +1039 @@
     LogRel(("HM: Host EFER                       = %#RX64\n", pVM->hm.s.vmx.u64HostEfer));
     LogRel(("HM: MSR_IA32_FEATURE_CONTROL        = %#RX64\n", pVM->hm.s.vmx.Msrs.u64FeatureCtrl));
+    if (!(pVM->hm.s.vmx.Msrs.u64FeatureCtrl & MSR_IA32_FEATURE_CONTROL_LOCK))
+    {
+        uint32_t fFeaturesECX, uDummy;
+        ASMCpuId(1, &uDummy, &uDummy, &fFeaturesECX, &uDummy);
+        bool fHvp = RT_BOOL(fFeaturesECX & X86_CPUID_FEATURE_ECX_HVP);
+        LogRel(("HM:   IA32_FEATURE_CONTROL lock bit not set, buggy %s\n", fHvp ? "hypervisor" : "hardware"));
+    }
     LogRel(("HM: MSR_IA32_VMX_BASIC_INFO         = %#RX64\n", pVM->hm.s.vmx.Msrs.u64BasicInfo));
     LogRel(("HM:   VMCS id                             = %#x\n", MSR_IA32_VMX_BASIC_INFO_VMCS_ID(pVM->hm.s.vmx.Msrs.u64BasicInfo)));