make this parallel to the other cpu types so that resume works correctly.

--HG--
extra : convert_revision : 3c165af27ea0e6c7f2a17819c1717d8900f54cc1

1 files changed, 7 insertions, 4 deletions

diff --git a/src/cpu/simple/atomic.cc b/src/cpu/simple/atomic.cc
index fe421ae6c..87ecafd69 100644
--- a/src/cpu/simple/atomic.cc
+++ b/src/cpu/simple/atomic.cc
@@ -182,11 +182,14 @@ AtomicSimpleCPU::unserialize(Checkpoint *cp, const string &section)
 void
 AtomicSimpleCPU::resume()
 {
-    changeState(SimObject::Running);
-    if (thread->status() == ThreadContext::Active) {
+    if (_status != SwitchedOut && _status != Idle) {
         assert(system->getMemoryMode() == System::Atomic);
-        if (!tickEvent.scheduled())
-            tickEvent.schedule(curTick);
+
+        changeState(SimObject::Running);
+        if (thread->status() == ThreadContext::Active) {
+            if (!tickEvent.scheduled())
+                tickEvent.schedule(curTick);
+        }
     }
 }