pagetable.hh revision 5184
14159Sgblack@eecs.umich.edu/* 24159Sgblack@eecs.umich.edu * Copyright (c) 2007 The Hewlett-Packard Development Company 34159Sgblack@eecs.umich.edu * All rights reserved. 44159Sgblack@eecs.umich.edu * 54159Sgblack@eecs.umich.edu * Redistribution and use of this software in source and binary forms, 64159Sgblack@eecs.umich.edu * with or without modification, are permitted provided that the 74159Sgblack@eecs.umich.edu * following conditions are met: 84159Sgblack@eecs.umich.edu * 94159Sgblack@eecs.umich.edu * The software must be used only for Non-Commercial Use which means any 104159Sgblack@eecs.umich.edu * use which is NOT directed to receiving any direct monetary 114159Sgblack@eecs.umich.edu * compensation for, or commercial advantage from such use. Illustrative 124159Sgblack@eecs.umich.edu * examples of non-commercial use are academic research, personal study, 134159Sgblack@eecs.umich.edu * teaching, education and corporate research & development. 144159Sgblack@eecs.umich.edu * Illustrative examples of commercial use are distributing products for 154159Sgblack@eecs.umich.edu * commercial advantage and providing services using the software for 164159Sgblack@eecs.umich.edu * commercial advantage. 174159Sgblack@eecs.umich.edu * 184159Sgblack@eecs.umich.edu * If you wish to use this software or functionality therein that may be 194159Sgblack@eecs.umich.edu * covered by patents for commercial use, please contact: 204159Sgblack@eecs.umich.edu * Director of Intellectual Property Licensing 214159Sgblack@eecs.umich.edu * Office of Strategy and Technology 224159Sgblack@eecs.umich.edu * Hewlett-Packard Company 234159Sgblack@eecs.umich.edu * 1501 Page Mill Road 244159Sgblack@eecs.umich.edu * Palo Alto, California 94304 254159Sgblack@eecs.umich.edu * 264159Sgblack@eecs.umich.edu * Redistributions of source code must retain the above copyright notice, 274159Sgblack@eecs.umich.edu * this list of conditions and the following disclaimer. Redistributions 284159Sgblack@eecs.umich.edu * in binary form must reproduce the above copyright notice, this list of 294159Sgblack@eecs.umich.edu * conditions and the following disclaimer in the documentation and/or 304159Sgblack@eecs.umich.edu * other materials provided with the distribution. Neither the name of 314159Sgblack@eecs.umich.edu * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its 324159Sgblack@eecs.umich.edu * contributors may be used to endorse or promote products derived from 334159Sgblack@eecs.umich.edu * this software without specific prior written permission. No right of 344159Sgblack@eecs.umich.edu * sublicense is granted herewith. Derivatives of the software and 354159Sgblack@eecs.umich.edu * output created using the software may be prepared, but only for 364159Sgblack@eecs.umich.edu * Non-Commercial Uses. Derivatives of the software may be shared with 374159Sgblack@eecs.umich.edu * others provided: (i) the others agree to abide by the list of 384159Sgblack@eecs.umich.edu * conditions herein which includes the Non-Commercial Use restrictions; 394159Sgblack@eecs.umich.edu * and (ii) such Derivatives of the software include the above copyright 404159Sgblack@eecs.umich.edu * notice to acknowledge the contribution from this software where 414159Sgblack@eecs.umich.edu * applicable, this list of conditions and the disclaimer below. 424159Sgblack@eecs.umich.edu * 434159Sgblack@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 444159Sgblack@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 454159Sgblack@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 464159Sgblack@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 474159Sgblack@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 484159Sgblack@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 494159Sgblack@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 504159Sgblack@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 514159Sgblack@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 524159Sgblack@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 534159Sgblack@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 544159Sgblack@eecs.umich.edu * 554159Sgblack@eecs.umich.edu * Authors: Gabe Black 564159Sgblack@eecs.umich.edu */ 574159Sgblack@eecs.umich.edu 584159Sgblack@eecs.umich.edu#ifndef __ARCH_X86_PAGETABLE_HH__ 594159Sgblack@eecs.umich.edu#define __ARCH_X86_PAGETABLE_HH__ 604159Sgblack@eecs.umich.edu 615124Sgblack@eecs.umich.edu#include <iostream> 625124Sgblack@eecs.umich.edu#include <string> 635124Sgblack@eecs.umich.edu 644159Sgblack@eecs.umich.edu#include "sim/host.hh" 654159Sgblack@eecs.umich.edu#include "base/misc.hh" 664159Sgblack@eecs.umich.edu 675124Sgblack@eecs.umich.educlass Checkpoint; 685124Sgblack@eecs.umich.edu 694159Sgblack@eecs.umich.edunamespace X86ISA 704159Sgblack@eecs.umich.edu{ 714159Sgblack@eecs.umich.edu struct VAddr 724159Sgblack@eecs.umich.edu { 734159Sgblack@eecs.umich.edu VAddr(Addr a) { panic("not implemented yet."); } 744159Sgblack@eecs.umich.edu }; 754159Sgblack@eecs.umich.edu 765124Sgblack@eecs.umich.edu struct TlbEntry 774159Sgblack@eecs.umich.edu { 785124Sgblack@eecs.umich.edu // The base of the physical page. 795184Sgblack@eecs.umich.edu Addr paddr; 805184Sgblack@eecs.umich.edu 815184Sgblack@eecs.umich.edu // The beginning of the virtual page this entry maps. 825184Sgblack@eecs.umich.edu Addr vaddr; 835184Sgblack@eecs.umich.edu // The size of the page this entry represents. 845184Sgblack@eecs.umich.edu Addr size; 855184Sgblack@eecs.umich.edu 865124Sgblack@eecs.umich.edu // Read permission is always available, assuming it isn't blocked by 875124Sgblack@eecs.umich.edu // other mechanisms. 885184Sgblack@eecs.umich.edu bool writable; 895124Sgblack@eecs.umich.edu // Whether this page is accesible without being in supervisor mode. 905124Sgblack@eecs.umich.edu bool user; 915124Sgblack@eecs.umich.edu // Whether to use write through or write back. M5 ignores this and 925124Sgblack@eecs.umich.edu // lets the caches handle the writeback policy. 935124Sgblack@eecs.umich.edu //bool pwt; 945124Sgblack@eecs.umich.edu // Whether the page is cacheable or not. 955124Sgblack@eecs.umich.edu bool uncacheable; 965124Sgblack@eecs.umich.edu // Whether or not to kick this page out on a write to CR3. 975124Sgblack@eecs.umich.edu bool global; 985124Sgblack@eecs.umich.edu // A bit used to form an index into the PAT table. 995124Sgblack@eecs.umich.edu bool patBit; 1005124Sgblack@eecs.umich.edu // Whether or not memory on this page can be executed. 1015124Sgblack@eecs.umich.edu bool noExec; 1025124Sgblack@eecs.umich.edu 1035184Sgblack@eecs.umich.edu TlbEntry(Addr asn, Addr _vaddr, Addr _paddr); 1045184Sgblack@eecs.umich.edu TlbEntry() {} 1055124Sgblack@eecs.umich.edu 1065184Sgblack@eecs.umich.edu Addr pageStart() 1075184Sgblack@eecs.umich.edu { 1085184Sgblack@eecs.umich.edu return paddr; 1095184Sgblack@eecs.umich.edu } 1105124Sgblack@eecs.umich.edu 1115124Sgblack@eecs.umich.edu void serialize(std::ostream &os); 1125124Sgblack@eecs.umich.edu void unserialize(Checkpoint *cp, const std::string §ion); 1134159Sgblack@eecs.umich.edu }; 1144159Sgblack@eecs.umich.edu} 1154159Sgblack@eecs.umich.edu 1164159Sgblack@eecs.umich.edu#endif 117