tlb.hh revision 5895
14120Sgblack@eecs.umich.edu/* 24120Sgblack@eecs.umich.edu * Copyright (c) 2007 The Hewlett-Packard Development Company 34120Sgblack@eecs.umich.edu * All rights reserved. 44120Sgblack@eecs.umich.edu * 54120Sgblack@eecs.umich.edu * Redistribution and use of this software in source and binary forms, 64120Sgblack@eecs.umich.edu * with or without modification, are permitted provided that the 74120Sgblack@eecs.umich.edu * following conditions are met: 84120Sgblack@eecs.umich.edu * 94120Sgblack@eecs.umich.edu * The software must be used only for Non-Commercial Use which means any 104120Sgblack@eecs.umich.edu * use which is NOT directed to receiving any direct monetary 114120Sgblack@eecs.umich.edu * compensation for, or commercial advantage from such use. Illustrative 124120Sgblack@eecs.umich.edu * examples of non-commercial use are academic research, personal study, 134120Sgblack@eecs.umich.edu * teaching, education and corporate research & development. 144120Sgblack@eecs.umich.edu * Illustrative examples of commercial use are distributing products for 154120Sgblack@eecs.umich.edu * commercial advantage and providing services using the software for 164120Sgblack@eecs.umich.edu * commercial advantage. 174120Sgblack@eecs.umich.edu * 184120Sgblack@eecs.umich.edu * If you wish to use this software or functionality therein that may be 194120Sgblack@eecs.umich.edu * covered by patents for commercial use, please contact: 204120Sgblack@eecs.umich.edu * Director of Intellectual Property Licensing 214120Sgblack@eecs.umich.edu * Office of Strategy and Technology 224120Sgblack@eecs.umich.edu * Hewlett-Packard Company 234120Sgblack@eecs.umich.edu * 1501 Page Mill Road 244120Sgblack@eecs.umich.edu * Palo Alto, California 94304 254120Sgblack@eecs.umich.edu * 264120Sgblack@eecs.umich.edu * Redistributions of source code must retain the above copyright notice, 274120Sgblack@eecs.umich.edu * this list of conditions and the following disclaimer. Redistributions 284120Sgblack@eecs.umich.edu * in binary form must reproduce the above copyright notice, this list of 294120Sgblack@eecs.umich.edu * conditions and the following disclaimer in the documentation and/or 304120Sgblack@eecs.umich.edu * other materials provided with the distribution. Neither the name of 314120Sgblack@eecs.umich.edu * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its 324120Sgblack@eecs.umich.edu * contributors may be used to endorse or promote products derived from 334120Sgblack@eecs.umich.edu * this software without specific prior written permission. No right of 344120Sgblack@eecs.umich.edu * sublicense is granted herewith. Derivatives of the software and 354120Sgblack@eecs.umich.edu * output created using the software may be prepared, but only for 364120Sgblack@eecs.umich.edu * Non-Commercial Uses. Derivatives of the software may be shared with 374120Sgblack@eecs.umich.edu * others provided: (i) the others agree to abide by the list of 384120Sgblack@eecs.umich.edu * conditions herein which includes the Non-Commercial Use restrictions; 394120Sgblack@eecs.umich.edu * and (ii) such Derivatives of the software include the above copyright 404120Sgblack@eecs.umich.edu * notice to acknowledge the contribution from this software where 414120Sgblack@eecs.umich.edu * applicable, this list of conditions and the disclaimer below. 424120Sgblack@eecs.umich.edu * 434120Sgblack@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 444120Sgblack@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 454120Sgblack@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 464120Sgblack@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 474120Sgblack@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 484120Sgblack@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 494120Sgblack@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 504120Sgblack@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 514120Sgblack@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 524120Sgblack@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 534120Sgblack@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 544120Sgblack@eecs.umich.edu * 554120Sgblack@eecs.umich.edu * Authors: Gabe Black 564120Sgblack@eecs.umich.edu */ 574120Sgblack@eecs.umich.edu 584120Sgblack@eecs.umich.edu#ifndef __ARCH_X86_TLB_HH__ 594120Sgblack@eecs.umich.edu#define __ARCH_X86_TLB_HH__ 604120Sgblack@eecs.umich.edu 615124Sgblack@eecs.umich.edu#include <list> 625237Sgblack@eecs.umich.edu#include <vector> 635236Sgblack@eecs.umich.edu#include <string> 645124Sgblack@eecs.umich.edu 655124Sgblack@eecs.umich.edu#include "arch/x86/pagetable.hh" 665124Sgblack@eecs.umich.edu#include "arch/x86/segmentregs.hh" 675086Sgblack@eecs.umich.edu#include "config/full_system.hh" 685236Sgblack@eecs.umich.edu#include "mem/mem_object.hh" 695086Sgblack@eecs.umich.edu#include "mem/request.hh" 705086Sgblack@eecs.umich.edu#include "params/X86DTB.hh" 715086Sgblack@eecs.umich.edu#include "params/X86ITB.hh" 725086Sgblack@eecs.umich.edu#include "sim/faults.hh" 735358Sgblack@eecs.umich.edu#include "sim/tlb.hh" 745086Sgblack@eecs.umich.edu#include "sim/sim_object.hh" 755086Sgblack@eecs.umich.edu 765086Sgblack@eecs.umich.educlass ThreadContext; 775086Sgblack@eecs.umich.educlass Packet; 785086Sgblack@eecs.umich.edu 795086Sgblack@eecs.umich.edunamespace X86ISA 805086Sgblack@eecs.umich.edu{ 815245Sgblack@eecs.umich.edu class Walker; 825245Sgblack@eecs.umich.edu 835118Sgblack@eecs.umich.edu static const unsigned StoreCheck = 1 << NUM_SEGMENTREGS; 845118Sgblack@eecs.umich.edu 855236Sgblack@eecs.umich.edu class TLB; 865236Sgblack@eecs.umich.edu 875358Sgblack@eecs.umich.edu class TLB : public BaseTLB 885086Sgblack@eecs.umich.edu { 895124Sgblack@eecs.umich.edu protected: 905895Sgblack@eecs.umich.edu friend class Walker; 915236Sgblack@eecs.umich.edu 925360Sgblack@eecs.umich.edu typedef std::list<TlbEntry *> EntryList; 935360Sgblack@eecs.umich.edu 945245Sgblack@eecs.umich.edu bool _allowNX; 955357Sgblack@eecs.umich.edu uint32_t configAddress; 965237Sgblack@eecs.umich.edu 975124Sgblack@eecs.umich.edu public: 985245Sgblack@eecs.umich.edu bool allowNX() const 995245Sgblack@eecs.umich.edu { 1005245Sgblack@eecs.umich.edu return _allowNX; 1015245Sgblack@eecs.umich.edu } 1025245Sgblack@eecs.umich.edu 1035124Sgblack@eecs.umich.edu typedef X86TLBParams Params; 1045124Sgblack@eecs.umich.edu TLB(const Params *p); 1055086Sgblack@eecs.umich.edu 1065124Sgblack@eecs.umich.edu void dumpAll(); 1075124Sgblack@eecs.umich.edu 1085124Sgblack@eecs.umich.edu TlbEntry *lookup(Addr va, bool update_lru = true); 1095124Sgblack@eecs.umich.edu 1105357Sgblack@eecs.umich.edu void setConfigAddress(uint32_t addr); 1115357Sgblack@eecs.umich.edu 1125360Sgblack@eecs.umich.edu protected: 1135360Sgblack@eecs.umich.edu 1145360Sgblack@eecs.umich.edu EntryList::iterator lookupIt(Addr va, bool update_lru = true); 1155360Sgblack@eecs.umich.edu 1165236Sgblack@eecs.umich.edu#if FULL_SYSTEM 1175236Sgblack@eecs.umich.edu protected: 1185236Sgblack@eecs.umich.edu 1195245Sgblack@eecs.umich.edu Walker * walker; 1205236Sgblack@eecs.umich.edu#endif 1215236Sgblack@eecs.umich.edu 1225242Sgblack@eecs.umich.edu public: 1235242Sgblack@eecs.umich.edu void invalidateAll(); 1245242Sgblack@eecs.umich.edu 1255242Sgblack@eecs.umich.edu void invalidateNonGlobal(); 1265242Sgblack@eecs.umich.edu 1275358Sgblack@eecs.umich.edu void demapPage(Addr va, uint64_t asn); 1285242Sgblack@eecs.umich.edu 1295124Sgblack@eecs.umich.edu protected: 1305124Sgblack@eecs.umich.edu int size; 1315124Sgblack@eecs.umich.edu 1325124Sgblack@eecs.umich.edu TlbEntry * tlb; 1335124Sgblack@eecs.umich.edu 1345124Sgblack@eecs.umich.edu EntryList freeList; 1355124Sgblack@eecs.umich.edu EntryList entryList; 1365124Sgblack@eecs.umich.edu 1375895Sgblack@eecs.umich.edu Fault translate(RequestPtr req, ThreadContext *tc, 1385895Sgblack@eecs.umich.edu Translation *translation, bool write, bool execute, 1395895Sgblack@eecs.umich.edu bool &delayedResponse, bool timing); 1405140Sgblack@eecs.umich.edu 1415124Sgblack@eecs.umich.edu public: 1425245Sgblack@eecs.umich.edu 1435895Sgblack@eecs.umich.edu TlbEntry * insert(Addr vpn, TlbEntry &entry); 1445245Sgblack@eecs.umich.edu 1455124Sgblack@eecs.umich.edu // Checkpointing 1465124Sgblack@eecs.umich.edu virtual void serialize(std::ostream &os); 1475124Sgblack@eecs.umich.edu virtual void unserialize(Checkpoint *cp, const std::string §ion); 1485086Sgblack@eecs.umich.edu }; 1495086Sgblack@eecs.umich.edu 1505124Sgblack@eecs.umich.edu class ITB : public TLB 1515124Sgblack@eecs.umich.edu { 1525124Sgblack@eecs.umich.edu public: 1535124Sgblack@eecs.umich.edu typedef X86ITBParams Params; 1545124Sgblack@eecs.umich.edu ITB(const Params *p) : TLB(p) 1555124Sgblack@eecs.umich.edu { 1565245Sgblack@eecs.umich.edu _allowNX = false; 1575124Sgblack@eecs.umich.edu } 1585086Sgblack@eecs.umich.edu 1595894Sgblack@eecs.umich.edu Fault translateAtomic(RequestPtr req, ThreadContext *tc); 1605894Sgblack@eecs.umich.edu void translateTiming(RequestPtr req, ThreadContext *tc, 1615894Sgblack@eecs.umich.edu Translation *translation); 1625086Sgblack@eecs.umich.edu 1635124Sgblack@eecs.umich.edu friend class DTB; 1645124Sgblack@eecs.umich.edu }; 1655086Sgblack@eecs.umich.edu 1665124Sgblack@eecs.umich.edu class DTB : public TLB 1675086Sgblack@eecs.umich.edu { 1685124Sgblack@eecs.umich.edu public: 1695124Sgblack@eecs.umich.edu typedef X86DTBParams Params; 1705124Sgblack@eecs.umich.edu DTB(const Params *p) : TLB(p) 1715124Sgblack@eecs.umich.edu { 1725245Sgblack@eecs.umich.edu _allowNX = true; 1735124Sgblack@eecs.umich.edu } 1745894Sgblack@eecs.umich.edu Fault translateAtomic(RequestPtr req, ThreadContext *tc, bool write); 1755894Sgblack@eecs.umich.edu void translateTiming(RequestPtr req, ThreadContext *tc, 1765894Sgblack@eecs.umich.edu Translation *translation, bool write); 1775086Sgblack@eecs.umich.edu#if FULL_SYSTEM 1785124Sgblack@eecs.umich.edu Tick doMmuRegRead(ThreadContext *tc, Packet *pkt); 1795124Sgblack@eecs.umich.edu Tick doMmuRegWrite(ThreadContext *tc, Packet *pkt); 1805086Sgblack@eecs.umich.edu#endif 1815086Sgblack@eecs.umich.edu 1825124Sgblack@eecs.umich.edu // Checkpointing 1835124Sgblack@eecs.umich.edu virtual void serialize(std::ostream &os); 1845124Sgblack@eecs.umich.edu virtual void unserialize(Checkpoint *cp, const std::string §ion); 1855124Sgblack@eecs.umich.edu }; 1865086Sgblack@eecs.umich.edu} 1875086Sgblack@eecs.umich.edu 1884120Sgblack@eecs.umich.edu#endif // __ARCH_X86_TLB_HH__ 189