alpha: Move system virtProxy to Alpha only

This patch moves the system virtual port proxy to the Alpha system
only to make the resurrection of the NOISA slightly less
painful. Alpha is the only ISA that is actually using it.

src/arch/alpha/system.cc

@@ -45,7 +45,7 @@
 using namespace AlphaISA;
 
 AlphaSystem::AlphaSystem(Params *p)
-    : System(p), intrFreq(0)
+    : System(p), intrFreq(0), virtProxy(getSystemPort(), p->cache_line_size)
 {
     consoleSymtab = new SymbolTable;
     palSymtab = new SymbolTable;

src/arch/alpha/system.hh

@@ -38,6 +38,7 @@
 #include "base/loader/symtab.hh"
 #include "cpu/pc_event.hh"
 #include "kern/system_events.hh"
+#include "mem/fs_translating_port_proxy.hh"
 #include "params/AlphaSystem.hh"
 #include "sim/sim_object.hh"
 #include "sim/system.hh"
@@ -91,6 +92,11 @@ class AlphaSystem : public System
   protected:
     Tick intrFreq;
 
+    /**
+     * Proxy used to copy arguments directly into kernel memory.
+     */
+    FSTranslatingPortProxy virtProxy;
+
     const Params *params() const { return (const Params *)_params; }
 
 

src/sim/system.cc

@@ -79,7 +79,6 @@ System::System(Params *p)
       pagePtr(0),
       init_param(p->init_param),
       physProxy(_systemPort, p->cache_line_size),
-      virtProxy(_systemPort, p->cache_line_size),
       loadAddrMask(p->load_addr_mask),
       nextPID(0),
       physmem(name() + ".physmem", p->memories),

src/sim/system.hh

@@ -57,9 +57,9 @@
 #include "cpu/pc_event.hh"
 #include "enums/MemoryMode.hh"
 #include "kern/system_events.hh"
-#include "mem/fs_translating_port_proxy.hh"
 #include "mem/mem_object.hh"
 #include "mem/port.hh"
+#include "mem/port_proxy.hh"
 #include "mem/physical.hh"
 #include "params/System.hh"
 
@@ -211,7 +211,6 @@ class System : public MemObject
     /** Port to physical memory used for writing object files into ram at
      * boot.*/
     PortProxy physProxy;
-    FSTranslatingPortProxy virtProxy;
 
     /** kernel symbol table */
     SymbolTable *kernelSymtab;