1/* 2 * Copyright (c) 2011 ARM Limited 3 * All rights reserved 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software --- 30 unchanged lines hidden (view full) --- 39 * 40 * Authors: Ron Dreslinski 41 * Steve Reinhardt 42 * Andreas Hansson 43 */ 44 45#include <string> 46 |
47#include "arch/isa_traits.hh" |
48#include "base/chunk_generator.hh" 49#include "config/the_isa.hh" 50#include "mem/page_table.hh" 51#include "mem/se_translating_port_proxy.hh" 52#include "sim/process.hh" 53 54using namespace TheISA; 55 --- 4 unchanged lines hidden (view full) --- 60{ } 61 62SETranslatingPortProxy::~SETranslatingPortProxy() 63{ } 64 65bool 66SETranslatingPortProxy::tryReadBlob(Addr addr, uint8_t *p, int size) 67{ |
68 int prevSize = 0; 69 70 for (ChunkGenerator gen(addr, size, VMPageSize); !gen.done(); gen.next()) { |
71 Addr paddr; |
72 73 if (!pTable->translate(gen.addr(),paddr)) 74 return false; 75 76 PortProxy::readBlob(paddr, p + prevSize, gen.size()); 77 prevSize += gen.size(); 78 } 79 --- 6 unchanged lines hidden (view full) --- 86 if (!tryReadBlob(addr, p, size)) 87 fatal("readBlob(0x%x, ...) failed", addr); 88} 89 90 91bool 92SETranslatingPortProxy::tryWriteBlob(Addr addr, uint8_t *p, int size) 93{ |
94 int prevSize = 0; 95 96 for (ChunkGenerator gen(addr, size, VMPageSize); !gen.done(); gen.next()) { |
97 Addr paddr; |
98 99 if (!pTable->translate(gen.addr(), paddr)) { 100 if (allocating == Always) { 101 process->allocateMem(roundDown(gen.addr(), VMPageSize), 102 VMPageSize); 103 } else if (allocating == NextPage) { 104 // check if we've accessed the next page on the stack 105 if (!process->fixupStackFault(gen.addr())) --- 18 unchanged lines hidden (view full) --- 124{ 125 if (!tryWriteBlob(addr, p, size)) 126 fatal("writeBlob(0x%x, ...) failed", addr); 127} 128 129bool 130SETranslatingPortProxy::tryMemsetBlob(Addr addr, uint8_t val, int size) 131{ |
132 for (ChunkGenerator gen(addr, size, VMPageSize); !gen.done(); gen.next()) { |
133 Addr paddr; |
134 135 if (!pTable->translate(gen.addr(), paddr)) { 136 if (allocating == Always) { 137 process->allocateMem(roundDown(gen.addr(), VMPageSize), 138 VMPageSize); 139 pTable->translate(gen.addr(), paddr); 140 } else { 141 return false; --- 12 unchanged lines hidden (view full) --- 154 if (!tryMemsetBlob(addr, val, size)) 155 fatal("memsetBlob(0x%x, ...) failed", addr); 156} 157 158 159bool 160SETranslatingPortProxy::tryWriteString(Addr addr, const char *str) 161{ |
162 uint8_t c; 163 |
164 Addr vaddr = addr; |
165 166 do { 167 c = *str++; |
168 Addr paddr; 169 170 if (!pTable->translate(vaddr++, paddr)) |
171 return false; 172 173 PortProxy::writeBlob(paddr, &c, 1); 174 } while (c); 175 176 return true; 177} 178 179void 180SETranslatingPortProxy::writeString(Addr addr, const char *str) 181{ 182 if (!tryWriteString(addr, str)) 183 fatal("writeString(0x%x, ...) failed", addr); 184} 185 186bool 187SETranslatingPortProxy::tryReadString(std::string &str, Addr addr) 188{ |
189 uint8_t c; 190 |
191 Addr vaddr = addr; |
192 193 do { |
194 Addr paddr; 195 196 if (!pTable->translate(vaddr++, paddr)) |
197 return false; 198 199 PortProxy::readBlob(paddr, &c, 1); 200 str += c; 201 } while (c); 202 203 return true; 204} 205 206void 207SETranslatingPortProxy::readString(std::string &str, Addr addr) 208{ 209 if (!tryReadString(str, addr)) 210 fatal("readString(0x%x, ...) failed", addr); 211} 212 |