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, 3 insertions, 4 deletions

diff --git a/src/cpu/o3/cpu.hh b/src/cpu/o3/cpu.hh
index 24c4b46a8..5dd0e222d 100644
--- a/src/cpu/o3/cpu.hh
+++ b/src/cpu/o3/cpu.hh
@@ -446,11 +446,10 @@ class FullO3CPU : public BaseO3CPU
     /** Is the CPU draining? */
     bool isDraining() const { return getDrainState() == Drainable::Draining; }
 
-    /** Serialize state. */
-    virtual void serialize(std::ostream &os);
+    void serializeThread(std::ostream &os, ThreadID tid);
 
-    /** Unserialize from a checkpoint. */
-    virtual void unserialize(Checkpoint *cp, const std::string &section);
+    void unserializeThread(Checkpoint *cp, const std::string &section,
+                           ThreadID tid);
 
   public:
     /** Executes a syscall.