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;

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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()

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