2 files changed, 18 insertions, 0 deletions
diff --git a/sim/faults.cc b/sim/faults.cc
index f7e9a0691..cb095f852 100644
--- a/sim/faults.cc
+++ b/sim/faults.cc
@@ -45,3 +45,8 @@ void FaultBase::invoke(ExecContext * xc)
     assert(!xc->misspeculating());
 }
 #endif
+
+void UnimpFault::invoke(ExecContext * xc)
+{
+    panic("Unimpfault: %s\n", panicStr.c_str());
+}
diff --git a/sim/faults.hh b/sim/faults.hh
index 18601e8f1..9b3bc9103 100644
--- a/sim/faults.hh
+++ b/sim/faults.hh
@@ -64,4 +64,17 @@ class FaultBase : public RefCounted
 
 FaultBase * const NoFault = 0;
 
+class UnimpFault : public FaultBase
+{
+  private:
+    std::string panicStr;
+  public:
+    UnimpFault(std::string _str)
+        : panicStr(_str)
+    { }
+
+    FaultName name() {return "Unimplemented simulator feature";}
+    void invoke(ExecContext * xc);
+};
+
 #endif // __FAULTS_HH__