x86: Changes to decoder, corrects 9376

The changes made by the changeset 9376 were not quite correct. The patch made
changes to the code which resulted in decoder not getting initialized correctly
when the state was restored from a checkpoint.

This patch adds a startup function to each ISA object. For x86, this function
sets the required state in the decoder. For other ISAs, the function is empty
right now.

2 files changed, 9 insertions, 0 deletions

diff --git a/src/cpu/simple/base.cc b/src/cpu/simple/base.cc
index 13e08a6cb..4db1c6c10 100644
--- a/src/cpu/simple/base.cc
+++ b/src/cpu/simple/base.cc
@@ -515,6 +515,13 @@ BaseSimpleCPU::advancePC(Fault fault)
     }
 }
 
+void
+BaseSimpleCPU::startup()
+{
+    BaseCPU::startup();
+    thread->startup();
+}
+
 /*Fault
 BaseSimpleCPU::CacheOp(uint8_t Op, Addr EffAddr)
 {
diff --git a/src/cpu/simple/base.hh b/src/cpu/simple/base.hh
index 18b97c42f..7e84dcc16 100644
--- a/src/cpu/simple/base.hh
+++ b/src/cpu/simple/base.hh
@@ -172,6 +172,8 @@ class BaseSimpleCPU : public BaseCPU
     virtual void regStats();
     virtual void resetStats();
 
+    virtual void startup();
+
     // number of simulated instructions
     Counter numInst;
     Counter startNumInst;