1/* 2 * Copyright (c) 2002-2005 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; --- 142 unchanged lines hidden (view full) --- 151} 152 153/* 154 * Determine if the mapping at va..(va+len) is valid. 155 */ 156bool 157RemoteGDB::acc(Addr va, size_t len) 158{ |
159 if (!FullSystem) 160 panic("acc function needs to be rewritten for SE mode\n"); |
161 |
162 Addr last_va; |
163 |
164 va = TruncPage(va); 165 last_va = RoundPage(va + len); |
166 |
167 do { 168 if (IsK0Seg(va)) { 169 if (va < (K0SegBase + pmem->size())) { 170 DPRINTF(GDBAcc, "acc: Mapping is valid K0SEG <= " 171 "%#x < K0SEG + size\n", va); |
172 return true; |
173 } else { 174 DPRINTF(GDBAcc, "acc: Mapping invalid %#x " 175 "> K0SEG + size\n", va); |
176 return false; 177 } |
178 } |
179 |
180 /** 181 * This code says that all accesses to palcode (instruction 182 * and data) are valid since there isn't a va->pa mapping 183 * because palcode is accessed physically. At some point this 184 * should probably be cleaned up but there is no easy way to 185 * do it. 186 */ 187 188 if (PcPAL(va) || va < 0x10000) 189 return true; 190 191 Addr ptbr = context->readMiscRegNoEffect(IPR_PALtemp20); 192 PageTableEntry pte = 193 kernel_pte_lookup(context->getPhysProxy(), ptbr, va); 194 if (!pte.valid()) { 195 DPRINTF(GDBAcc, "acc: %#x pte is invalid\n", va); 196 return false; 197 } 198 va += PageBytes; 199 } while (va < last_va); 200 201 DPRINTF(GDBAcc, "acc: %#x mapping is valid\n", va); 202 return true; |
203} 204 205/* 206 * Translate the kernel debugger register format into the GDB register 207 * format. 208 */ 209void 210RemoteGDB::getregs() --- 111 unchanged lines hidden --- |