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/*
* Copyright (c) 2007 The Hewlett-Packard Development Company
* All rights reserved.
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* 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.
*
* Authors: Gabe Black
*/
#include <cmath>
#include "arch/x86/isa_traits.hh"
#include "arch/x86/pagetable.hh"
#include "sim/serialize.hh"
namespace X86ISA
{
TlbEntry::TlbEntry(Addr asn, Addr _vaddr, Addr _paddr) :
paddr(_paddr), vaddr(_vaddr), logBytes(PageShift), writable(true),
user(true), uncacheable(false), global(false), patBit(0), noExec(false)
{}
void
TlbEntry::serialize(std::ostream &os)
{
SERIALIZE_SCALAR(paddr);
SERIALIZE_SCALAR(vaddr);
SERIALIZE_SCALAR(logBytes);
SERIALIZE_SCALAR(writable);
SERIALIZE_SCALAR(user);
SERIALIZE_SCALAR(uncacheable);
SERIALIZE_SCALAR(global);
SERIALIZE_SCALAR(patBit);
SERIALIZE_SCALAR(noExec);
SERIALIZE_SCALAR(lruSeq);
}
void
TlbEntry::unserialize(Checkpoint *cp, const std::string §ion)
{
UNSERIALIZE_SCALAR(paddr);
UNSERIALIZE_SCALAR(vaddr);
//
// The logBytes scalar variable replaced the previous size variable.
// The following code maintains backwards compatibility with previous
// checkpoints using the old size variable.
//
if (UNSERIALIZE_OPT_SCALAR(logBytes) == false) {
int size;
UNSERIALIZE_SCALAR(size);
logBytes = log2(size);
}
UNSERIALIZE_SCALAR(writable);
UNSERIALIZE_SCALAR(user);
UNSERIALIZE_SCALAR(uncacheable);
UNSERIALIZE_SCALAR(global);
UNSERIALIZE_SCALAR(patBit);
UNSERIALIZE_SCALAR(noExec);
if (UNSERIALIZE_OPT_SCALAR(lruSeq) == false) {
lruSeq = 0;
}
}
}
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