se_translating_port_proxy.cc revision 10318
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 478762SN/A#include "arch/isa_traits.hh" 482404SN/A#include "base/chunk_generator.hh" 496658SN/A#include "config/the_isa.hh" 508229SN/A#include "mem/page_table.hh" 518706Sandreas.hansson@arm.com#include "mem/se_translating_port_proxy.hh" 524434SN/A#include "sim/process.hh" 539814Sandreas.hansson@arm.com#include "sim/system.hh" 542400SN/A 552423SN/Ausing namespace TheISA; 562423SN/A 578922Swilliam.wang@arm.comSETranslatingPortProxy::SETranslatingPortProxy(MasterPort& port, Process *p, 588706Sandreas.hansson@arm.com AllocType alloc) 599814Sandreas.hansson@arm.com : PortProxy(port, p->system->cacheLineSize()), pTable(p->pTable), 609814Sandreas.hansson@arm.com process(p), allocating(alloc) 612400SN/A{ } 622400SN/A 638706Sandreas.hansson@arm.comSETranslatingPortProxy::~SETranslatingPortProxy() 642400SN/A{ } 652400SN/A 662445SN/Abool 678861Sandreas.hansson@arm.comSETranslatingPortProxy::tryReadBlob(Addr addr, uint8_t *p, int size) const 682400SN/A{ 692404SN/A int prevSize = 0; 702400SN/A 7110318Sandreas.hansson@arm.com for (ChunkGenerator gen(addr, size, PageBytes); !gen.done(); gen.next()) { 728762SN/A Addr paddr; 732400SN/A 742419SN/A if (!pTable->translate(gen.addr(),paddr)) 752445SN/A return false; 762400SN/A 778706Sandreas.hansson@arm.com PortProxy::readBlob(paddr, p + prevSize, gen.size()); 782419SN/A prevSize += gen.size(); 792404SN/A } 802400SN/A 812445SN/A return true; 822400SN/A} 832400SN/A 842445SN/Avoid 858861Sandreas.hansson@arm.comSETranslatingPortProxy::readBlob(Addr addr, uint8_t *p, int size) const 862400SN/A{ 872461SN/A if (!tryReadBlob(addr, p, size)) 882461SN/A fatal("readBlob(0x%x, ...) failed", addr); 892445SN/A} 902445SN/A 912445SN/A 922445SN/Abool 938861Sandreas.hansson@arm.comSETranslatingPortProxy::tryWriteBlob(Addr addr, uint8_t *p, int size) const 942445SN/A{ 952404SN/A int prevSize = 0; 962400SN/A 9710318Sandreas.hansson@arm.com for (ChunkGenerator gen(addr, size, PageBytes); !gen.done(); gen.next()) { 988762SN/A Addr paddr; 992400SN/A 1002419SN/A if (!pTable->translate(gen.addr(), paddr)) { 1014434SN/A if (allocating == Always) { 10210318Sandreas.hansson@arm.com process->allocateMem(roundDown(gen.addr(), PageBytes), 10310318Sandreas.hansson@arm.com PageBytes); 1044434SN/A } else if (allocating == NextPage) { 1054434SN/A // check if we've accessed the next page on the stack 1068539SN/A if (!process->fixupStackFault(gen.addr())) 1074434SN/A panic("Page table fault when accessing virtual address %#x " 1084434SN/A "during functional write\n", gen.addr()); 1092419SN/A } else { 1102445SN/A return false; 1112419SN/A } 1124434SN/A pTable->translate(gen.addr(), paddr); 1132419SN/A } 1142400SN/A 1158706Sandreas.hansson@arm.com PortProxy::writeBlob(paddr, p + prevSize, gen.size()); 1162419SN/A prevSize += gen.size(); 1172404SN/A } 1182404SN/A 1192445SN/A return true; 1202400SN/A} 1212400SN/A 1222420SN/A 1232445SN/Avoid 1248861Sandreas.hansson@arm.comSETranslatingPortProxy::writeBlob(Addr addr, uint8_t *p, int size) const 1252445SN/A{ 1262519SN/A if (!tryWriteBlob(addr, p, size)) 1272461SN/A fatal("writeBlob(0x%x, ...) failed", addr); 1282445SN/A} 1292445SN/A 1302445SN/Abool 1318861Sandreas.hansson@arm.comSETranslatingPortProxy::tryMemsetBlob(Addr addr, uint8_t val, int size) const 1322400SN/A{ 13310318Sandreas.hansson@arm.com for (ChunkGenerator gen(addr, size, PageBytes); !gen.done(); gen.next()) { 1348762SN/A Addr paddr; 1352400SN/A 1362420SN/A if (!pTable->translate(gen.addr(), paddr)) { 1374434SN/A if (allocating == Always) { 13810318Sandreas.hansson@arm.com process->allocateMem(roundDown(gen.addr(), PageBytes), 13910318Sandreas.hansson@arm.com PageBytes); 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 1538861Sandreas.hansson@arm.comSETranslatingPortProxy::memsetBlob(Addr addr, uint8_t val, int size) const 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 1618861Sandreas.hansson@arm.comSETranslatingPortProxy::tryWriteString(Addr addr, const char *str) const 1622400SN/A{ 1632403SN/A uint8_t c; 1642400SN/A 1658762SN/A Addr vaddr = addr; 1662400SN/A 1672403SN/A do { 1682403SN/A c = *str++; 1698762SN/A Addr paddr; 1708762SN/A 1718762SN/A if (!pTable->translate(vaddr++, paddr)) 1722445SN/A return false; 1732400SN/A 1748706Sandreas.hansson@arm.com PortProxy::writeBlob(paddr, &c, 1); 1752403SN/A } while (c); 1762403SN/A 1772445SN/A return true; 1782400SN/A} 1792400SN/A 1802445SN/Avoid 1818861Sandreas.hansson@arm.comSETranslatingPortProxy::writeString(Addr addr, const char *str) const 1822445SN/A{ 1832461SN/A if (!tryWriteString(addr, str)) 1842461SN/A fatal("writeString(0x%x, ...) failed", addr); 1852445SN/A} 1862445SN/A 1872445SN/Abool 1888861Sandreas.hansson@arm.comSETranslatingPortProxy::tryReadString(std::string &str, Addr addr) const 1892400SN/A{ 1902403SN/A uint8_t c; 1912400SN/A 1928762SN/A Addr vaddr = addr; 1932400SN/A 1949145Ssteve.reinhardt@amd.com while (true) { 1958762SN/A Addr paddr; 1968762SN/A 1978762SN/A if (!pTable->translate(vaddr++, paddr)) 1982445SN/A return false; 1992400SN/A 2008706Sandreas.hansson@arm.com PortProxy::readBlob(paddr, &c, 1); 2019145Ssteve.reinhardt@amd.com if (c == '\0') 2029145Ssteve.reinhardt@amd.com break; 2039145Ssteve.reinhardt@amd.com 2042403SN/A str += c; 2059145Ssteve.reinhardt@amd.com } 2062403SN/A 2072445SN/A return true; 2082400SN/A} 2092400SN/A 2102445SN/Avoid 2118861Sandreas.hansson@arm.comSETranslatingPortProxy::readString(std::string &str, Addr addr) const 2122445SN/A{ 2132461SN/A if (!tryReadString(str, addr)) 2142461SN/A fatal("readString(0x%x, ...) failed", addr); 2152445SN/A} 2162445SN/A 217