cpu: Unify the serialization code for all of the CPU models

Cleanup the serialization code for the simple CPUs and the O3 CPU. The
CPU-specific code has been replaced with a (un)serializeThread that
serializes the thread state / context of a specific thread. Assuming
that the thread state class uses the CPU-specific thread state uses
the base thread state serialization code, this allows us to restore a
checkpoint with any of the CPU models.

1 files changed, 10 insertions, 11 deletions

diff --git a/src/cpu/simple/base.cc b/src/cpu/simple/base.cc
index da965450a..13e08a6cb 100644
--- a/src/cpu/simple/base.cc
+++ b/src/cpu/simple/base.cc
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010-2011 ARM Limited
+ * Copyright (c) 2010-2012 ARM Limited
  * All rights reserved
  *
  * The license below extends only to copyright in the software and shall
@@ -283,22 +283,21 @@ BaseSimpleCPU::resetStats()
 }
 
 void
-BaseSimpleCPU::serialize(ostream &os)
+BaseSimpleCPU::serializeThread(ostream &os, ThreadID tid)
 {
-    SERIALIZE_ENUM(_status);
-    BaseCPU::serialize(os);
-//    SERIALIZE_SCALAR(inst);
-    nameOut(os, csprintf("%s.xc.0", name()));
+    assert(_status == Idle || _status == Running);
+    assert(tid == 0);
+
     thread->serialize(os);
 }
 
 void
-BaseSimpleCPU::unserialize(Checkpoint *cp, const string &section)
+BaseSimpleCPU::unserializeThread(Checkpoint *cp, const string &section,
+                                 ThreadID tid)
 {
-    UNSERIALIZE_ENUM(_status);
-    BaseCPU::unserialize(cp, section);
-//    UNSERIALIZE_SCALAR(inst);
-    thread->unserialize(cp, csprintf("%s.xc.0", section));
+    if (tid != 0)
+        fatal("Trying to load more than one thread into a SimpleCPU\n");
+    thread->unserialize(cp, section);
 }
 
 void