Changeset 49580 in vbox

Timestamp:

Nov 20, 2013 12:16:14 PM (11 years ago)

Author:

vboxsync

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

90779

Message:

VMM/HMVMXR0: Better fix for r90778.

File:

• trunk/src/VBox/VMM/VMMR0/HMVMXR0.cpp (modified) (2 diffs)

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

@@ -7887 +7887 @@
      * fill those values in. Subsequently, it's updated as part of the host state.
      */
-    if (!pVCpu->hm.s.vmx.fUpdatedHostMsrs)
+    if (   !pVCpu->hm.s.vmx.fUpdatedHostMsrs
+        && pVCpu->hm.s.vmx.cMsrs > 0)
+    {
         VMCPU_HMCF_SET(pVCpu, HM_CHANGED_HOST_CONTEXT);
+    }
 
     /*
@@ -7900 +7903 @@
         AssertRC(rc);
         STAM_COUNTER_INC(&pVCpu->hm.s.StatPreemptSaveHostState);
-
-        /*
-         * Prevent unnecessary host-state updates in case fUpdatedHostMsrs remains false 
-         * throughout execution (e.g. if we are not swapping any MSRs)
-         */
-        pVCpu->hm.s.vmx.fUpdatedHostMsrs = true;
     }
     Assert(!VMCPU_HMCF_IS_PENDING(pVCpu, HM_CHANGED_HOST_CONTEXT));