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diff --git a/mem/page_table.hh b/mem/page_table.hh
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+/*
+ * Copyright (c) 2003 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * @file
+ * Declaration of a non-full system Page Table.
+ */
+
+#ifndef __PAGE_TABLE__
+#define __PAGE_TABLE__
+
+#include <string>
+#include <map>
+
+#include "base/trace.hh"
+#include "mem/mem_req.hh"
+#include "mem/mem_cmd.hh"
+#include "sim/sim_object.hh"
+
+class System;
+
+/**
+ * Page Table Decleration.
+ */
+class PageTable
+{
+  protected:
+    std::map<Addr,Addr> pTable;
+
+    const Addr pageSize;
+    const Addr offsetMask;
+
+    System *system;
+
+  public:
+
+    PageTable(System *_system, Addr _pageSize = VMPageSize);
+
+    ~PageTable();
+
+    Addr pageAlign(Addr a)  { return (a & ~offsetMask); }
+    Addr pageOffset(Addr a) { return (a &  offsetMask); }
+
+    Fault page_check(Addr addr, int size) const;
+
+    void allocate(Addr vaddr, int size);
+
+    /**
+     * Translate function
+     * @param vaddr The virtual address.
+     * @return Physical address from translation.
+     */
+    bool translate(Addr vaddr, Addr &paddr);
+
+    /**
+     * Perform a translation on the memory request, fills in paddr field of mem_req.
+     * @param req The memory request.
+     */
+    Fault translate(MemReqPtr &req);
+
+};
+
+#endif