1 files changed, 4 insertions, 0 deletions
diff --git a/src/arch/x86/utility.cc b/src/arch/x86/utility.cc
index ae6c37be6..e3d25fcdf 100644
--- a/src/arch/x86/utility.cc
+++ b/src/arch/x86/utility.cc
@@ -209,6 +209,10 @@ copyMiscRegs(ThreadContext *src, ThreadContext *dest)
         dest->setMiscRegNoEffect(i, src->readMiscRegNoEffect(i));
     }
 
+    // The TSC has to be updated with side-effects if the CPUs in a
+    // CPU switch have different frequencies.
+    dest->setMiscReg(MISCREG_TSC, src->readMiscReg(MISCREG_TSC));
+
     dest->getITBPtr()->flushAll();
     dest->getDTBPtr()->flushAll();
 }