pagetable.cc revision 10905
1/* 2 * Copyright (c) 2007 The Hewlett-Packard Development Company 3 * All rights reserved. 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions are 16 * met: redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer; 18 * redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution; 21 * neither the name of the copyright holders nor the names of its 22 * contributors may be used to endorse or promote products derived from 23 * this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 * 37 * Authors: Gabe Black 38 */ 39 40#include <cmath> 41#include "arch/x86/isa_traits.hh" 42#include "arch/x86/pagetable.hh" 43#include "sim/serialize.hh" 44 45namespace X86ISA 46{ 47 48TlbEntry::TlbEntry() 49 : paddr(0), vaddr(0), logBytes(0), writable(0), 50 user(true), uncacheable(0), global(false), patBit(0), 51 noExec(false), lruSeq(0) 52{ 53} 54 55TlbEntry::TlbEntry(Addr asn, Addr _vaddr, Addr _paddr, 56 bool uncacheable, bool read_only) : 57 paddr(_paddr), vaddr(_vaddr), logBytes(PageShift), writable(!read_only), 58 user(true), uncacheable(uncacheable), global(false), patBit(0), 59 noExec(false), lruSeq(0) 60{} 61 62void 63TlbEntry::serialize(CheckpointOut &cp) const 64{ 65 SERIALIZE_SCALAR(paddr); 66 SERIALIZE_SCALAR(vaddr); 67 SERIALIZE_SCALAR(logBytes); 68 SERIALIZE_SCALAR(writable); 69 SERIALIZE_SCALAR(user); 70 SERIALIZE_SCALAR(uncacheable); 71 SERIALIZE_SCALAR(global); 72 SERIALIZE_SCALAR(patBit); 73 SERIALIZE_SCALAR(noExec); 74 SERIALIZE_SCALAR(lruSeq); 75} 76 77void 78TlbEntry::unserialize(CheckpointIn &cp) 79{ 80 UNSERIALIZE_SCALAR(paddr); 81 UNSERIALIZE_SCALAR(vaddr); 82 UNSERIALIZE_SCALAR(logBytes); 83 UNSERIALIZE_SCALAR(writable); 84 UNSERIALIZE_SCALAR(user); 85 UNSERIALIZE_SCALAR(uncacheable); 86 UNSERIALIZE_SCALAR(global); 87 UNSERIALIZE_SCALAR(patBit); 88 UNSERIALIZE_SCALAR(noExec); 89 UNSERIALIZE_SCALAR(lruSeq); 90} 91 92} 93