se_translating_port_proxy.cc revision 8706
12400SN/A/* 28706Sandreas.hansson@arm.com * Copyright (c) 2011 ARM Limited 38706Sandreas.hansson@arm.com * All rights reserved 48706Sandreas.hansson@arm.com * 58706Sandreas.hansson@arm.com * The license below extends only to copyright in the software and shall 68706Sandreas.hansson@arm.com * not be construed as granting a license to any other intellectual 78706Sandreas.hansson@arm.com * property including but not limited to intellectual property relating 88706Sandreas.hansson@arm.com * to a hardware implementation of the functionality of the software 98706Sandreas.hansson@arm.com * licensed hereunder. You may use the software subject to the license 108706Sandreas.hansson@arm.com * terms below provided that you ensure that this notice is replicated 118706Sandreas.hansson@arm.com * unmodified and in its entirety in all distributions of the software, 128706Sandreas.hansson@arm.com * modified or unmodified, in source code or in binary form. 138706Sandreas.hansson@arm.com * 142400SN/A * Copyright (c) 2001-2005 The Regents of The University of Michigan 152400SN/A * All rights reserved. 162400SN/A * 172400SN/A * Redistribution and use in source and binary forms, with or without 182400SN/A * modification, are permitted provided that the following conditions are 192400SN/A * met: redistributions of source code must retain the above copyright 202400SN/A * notice, this list of conditions and the following disclaimer; 212400SN/A * redistributions in binary form must reproduce the above copyright 222400SN/A * notice, this list of conditions and the following disclaimer in the 232400SN/A * documentation and/or other materials provided with the distribution; 242400SN/A * neither the name of the copyright holders nor the names of its 252400SN/A * contributors may be used to endorse or promote products derived from 262400SN/A * this software without specific prior written permission. 272400SN/A * 282400SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 292400SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 302400SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 312400SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 322400SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 332400SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 342400SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 352400SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 362400SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 372400SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 382400SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 392665SN/A * 402665SN/A * Authors: Ron Dreslinski 412665SN/A * Steve Reinhardt 428706Sandreas.hansson@arm.com * Andreas Hansson 432400SN/A */ 442400SN/A 452400SN/A#include <string> 466658SN/A 472404SN/A#include "base/chunk_generator.hh" 486658SN/A#include "config/the_isa.hh" 498229SN/A#include "mem/page_table.hh" 508706Sandreas.hansson@arm.com#include "mem/se_translating_port_proxy.hh" 514434SN/A#include "sim/process.hh" 522400SN/A 532423SN/Ausing namespace TheISA; 542423SN/A 558706Sandreas.hansson@arm.comSETranslatingPortProxy::SETranslatingPortProxy(Port& port, Process *p, 568706Sandreas.hansson@arm.com AllocType alloc) 578706Sandreas.hansson@arm.com : PortProxy(port), pTable(p->pTable), process(p), 584434SN/A allocating(alloc) 592400SN/A{ } 602400SN/A 618706Sandreas.hansson@arm.comSETranslatingPortProxy::~SETranslatingPortProxy() 622400SN/A{ } 632400SN/A 642445SN/Abool 658706Sandreas.hansson@arm.comSETranslatingPortProxy::tryReadBlob(Addr addr, uint8_t *p, int size) 662400SN/A{ 672400SN/A Addr paddr; 682404SN/A int prevSize = 0; 692400SN/A 702404SN/A for (ChunkGenerator gen(addr, size, VMPageSize); !gen.done(); gen.next()) { 712400SN/A 722419SN/A if (!pTable->translate(gen.addr(),paddr)) 732445SN/A return false; 742400SN/A 758706Sandreas.hansson@arm.com PortProxy::readBlob(paddr, p + prevSize, gen.size()); 762419SN/A prevSize += gen.size(); 772404SN/A } 782400SN/A 792445SN/A return true; 802400SN/A} 812400SN/A 822445SN/Avoid 838706Sandreas.hansson@arm.comSETranslatingPortProxy::readBlob(Addr addr, uint8_t *p, int size) 842400SN/A{ 852461SN/A if (!tryReadBlob(addr, p, size)) 862461SN/A fatal("readBlob(0x%x, ...) failed", addr); 872445SN/A} 882445SN/A 892445SN/A 902445SN/Abool 918706Sandreas.hansson@arm.comSETranslatingPortProxy::tryWriteBlob(Addr addr, uint8_t *p, int size) 922445SN/A{ 932445SN/A 942400SN/A Addr paddr; 952404SN/A int prevSize = 0; 962400SN/A 972404SN/A for (ChunkGenerator gen(addr, size, VMPageSize); !gen.done(); gen.next()) { 982400SN/A 992419SN/A if (!pTable->translate(gen.addr(), paddr)) { 1004434SN/A if (allocating == Always) { 1018601SN/A process->allocateMem(roundDown(gen.addr(), VMPageSize), 1028601SN/A VMPageSize); 1034434SN/A } else if (allocating == NextPage) { 1044434SN/A // check if we've accessed the next page on the stack 1058539SN/A if (!process->fixupStackFault(gen.addr())) 1064434SN/A panic("Page table fault when accessing virtual address %#x " 1074434SN/A "during functional write\n", gen.addr()); 1082419SN/A } else { 1092445SN/A return false; 1102419SN/A } 1114434SN/A pTable->translate(gen.addr(), paddr); 1122419SN/A } 1132400SN/A 1148706Sandreas.hansson@arm.com PortProxy::writeBlob(paddr, p + prevSize, gen.size()); 1152419SN/A prevSize += gen.size(); 1162404SN/A } 1172404SN/A 1182445SN/A return true; 1192400SN/A} 1202400SN/A 1212420SN/A 1222445SN/Avoid 1238706Sandreas.hansson@arm.comSETranslatingPortProxy::writeBlob(Addr addr, uint8_t *p, int size) 1242445SN/A{ 1252519SN/A if (!tryWriteBlob(addr, p, size)) 1262461SN/A fatal("writeBlob(0x%x, ...) failed", addr); 1272445SN/A} 1282445SN/A 1292445SN/Abool 1308706Sandreas.hansson@arm.comSETranslatingPortProxy::tryMemsetBlob(Addr addr, uint8_t val, int size) 1312400SN/A{ 1322400SN/A Addr paddr; 1332400SN/A 1342404SN/A for (ChunkGenerator gen(addr, size, VMPageSize); !gen.done(); gen.next()) { 1352400SN/A 1362420SN/A if (!pTable->translate(gen.addr(), paddr)) { 1374434SN/A if (allocating == Always) { 1388601SN/A process->allocateMem(roundDown(gen.addr(), VMPageSize), 1398601SN/A VMPageSize); 1402420SN/A pTable->translate(gen.addr(), paddr); 1412420SN/A } else { 1422445SN/A return false; 1432420SN/A } 1442420SN/A } 1452400SN/A 1468706Sandreas.hansson@arm.com PortProxy::memsetBlob(paddr, val, gen.size()); 1472404SN/A } 1482404SN/A 1492445SN/A return true; 1502400SN/A} 1512420SN/A 1522445SN/Avoid 1538706Sandreas.hansson@arm.comSETranslatingPortProxy::memsetBlob(Addr addr, uint8_t val, int size) 1542445SN/A{ 1552519SN/A if (!tryMemsetBlob(addr, val, size)) 1562461SN/A fatal("memsetBlob(0x%x, ...) failed", addr); 1572445SN/A} 1582400SN/A 1592445SN/A 1602445SN/Abool 1618706Sandreas.hansson@arm.comSETranslatingPortProxy::tryWriteString(Addr addr, const char *str) 1622400SN/A{ 1632403SN/A Addr paddr,vaddr; 1642403SN/A uint8_t c; 1652400SN/A 1662403SN/A vaddr = addr; 1672400SN/A 1682403SN/A do { 1692403SN/A c = *str++; 1702403SN/A if (!pTable->translate(vaddr++,paddr)) 1712445SN/A return false; 1722400SN/A 1738706Sandreas.hansson@arm.com PortProxy::writeBlob(paddr, &c, 1); 1742403SN/A } while (c); 1752403SN/A 1762445SN/A return true; 1772400SN/A} 1782400SN/A 1792445SN/Avoid 1808706Sandreas.hansson@arm.comSETranslatingPortProxy::writeString(Addr addr, const char *str) 1812445SN/A{ 1822461SN/A if (!tryWriteString(addr, str)) 1832461SN/A fatal("writeString(0x%x, ...) failed", addr); 1842445SN/A} 1852445SN/A 1862445SN/Abool 1878706Sandreas.hansson@arm.comSETranslatingPortProxy::tryReadString(std::string &str, Addr addr) 1882400SN/A{ 1892403SN/A Addr paddr,vaddr; 1902403SN/A uint8_t c; 1912400SN/A 1922403SN/A vaddr = addr; 1932400SN/A 1942403SN/A do { 1952403SN/A if (!pTable->translate(vaddr++,paddr)) 1962445SN/A return false; 1972400SN/A 1988706Sandreas.hansson@arm.com PortProxy::readBlob(paddr, &c, 1); 1992403SN/A str += c; 2002403SN/A } while (c); 2012403SN/A 2022445SN/A return true; 2032400SN/A} 2042400SN/A 2052445SN/Avoid 2068706Sandreas.hansson@arm.comSETranslatingPortProxy::readString(std::string &str, Addr addr) 2072445SN/A{ 2082461SN/A if (!tryReadString(str, addr)) 2092461SN/A fatal("readString(0x%x, ...) failed", addr); 2102445SN/A} 2112445SN/A 212