Make FullCPU schedule its TickEvent when one of its contexts becomes active.

This fixes detailed-mpboot, which was broken as of my last change.
Also clean up some of the ExecContext status initialization.

cpu/base_cpu.hh:
    CPU::execCtxStatusChg() now takes thread_num as an arg so the CPU knows
    which execContext had the status change.
    BaseCPU::registerExecContexts() no longer needs to be virtual.
cpu/exec_context.cc:
    Initialize _status directly... don't use setStatus() as this will notify the CPU
    of the change before it is ready.
    CPU::execCtxStatusChg() now takes thread_num as an arg so the CPU knows
    which execContext had the status change.
cpu/exec_context.hh:
    Don't need initStatus() any more.
cpu/simple_cpu/simple_cpu.cc:
    Move execCtxStatusChg() from header to .cc file.
    No longer need specialized version of registerExecContexts to schedule TickEvent.
cpu/simple_cpu/simple_cpu.hh:
    Move execCtxStatusChg() from header to .cc file.
    CPU::execCtxStatusChg() now takes thread_num as arg (must be 0 for SimpleCPU).
    No longer need specialized version of registerExecContexts to schedule TickEvent.
kern/tru64/tru64_system.cc:
    Don't need initRegs; the PC etc. get initialized in the CPU constructor.
    ExecContexts start out as Unallocated, so no need to set them to Unallocated here.
kern/tru64/tru64_system.hh:
    Don't need initRegs; the PC etc. get initialized in the CPU constructor.
sim/prog.cc:
    ExecContexts start out as Unallocated, so no need to set them to Unallocated here.

--HG--
extra : convert_revision : e960ebbeb845960344633798e251b6c8bf1c0378

2 files changed, 1 insertions, 16 deletions

diff --git a/kern/tru64/tru64_system.cc b/kern/tru64/tru64_system.cc
index 8b4ff668d..a7940ed1f 100644
--- a/kern/tru64/tru64_system.cc
+++ b/kern/tru64/tru64_system.cc
@@ -72,10 +72,6 @@ Tru64System::Tru64System(const string _name, const uint64_t _init_param,
         fatal("Could not load PALcode file %s", palcode);
     pal->loadSections(physmem, true);
 
-    // copy of initial reg file contents
-    initRegs = new RegFile;
-    memset(initRegs, 0, sizeof(RegFile));
-
     // Load console file
     console->loadSections(physmem, true);
 
@@ -90,10 +86,6 @@ Tru64System::Tru64System(const string _name, const uint64_t _init_param,
             "Kernel entry = %#x\n",
             kernelStart, kernelEnd, kernelEntry);
 
-    // Setup kernel boot parameters
-    initRegs->pc = 0x4001;
-    initRegs->npc = initRegs->pc + sizeof(MachInst);
-
     DPRINTF(Loader, "Kernel loaded...\n");
 
     kernelPanicEvent = new BreakPCEvent(&pcEventQueue, "kernel panic");
@@ -164,8 +156,6 @@ Tru64System::Tru64System(const string _name, const uint64_t _init_param,
 
 Tru64System::~Tru64System()
 {
-    delete initRegs;
-
     delete kernel;
     delete console;
 
@@ -190,11 +180,7 @@ Tru64System::registerExecContext(ExecContext *xc)
     int xcIndex = System::registerExecContext(xc);
 
     if (xcIndex == 0) {
-        // xc->regs = *initRegs;
-        xc->initStatus(ExecContext::Active);
-    }
-    else {
-        xc->initStatus(ExecContext::Unallocated);
+        xc->setStatus(ExecContext::Active);
     }
 
     RemoteGDB *rgdb = new RemoteGDB(this, xc);
diff --git a/kern/tru64/tru64_system.hh b/kern/tru64/tru64_system.hh
index a67792aaf..e0d2bedf7 100644
--- a/kern/tru64/tru64_system.hh
+++ b/kern/tru64/tru64_system.hh
@@ -67,7 +67,6 @@ class Tru64System : public System
     DumpMbufEvent *dumpMbufEvent;
 
   private:
-    RegFile *initRegs;
 
     Addr kernelStart;
     Addr kernelEnd;