powerpc tcg: Fix Lesser GPL version number
[qemu.git] / target / ppc / user_only_helper.c
1 /*
2 * PowerPC MMU stub handling for user mode emulation
3 *
4 * Copyright (c) 2003-2007 Jocelyn Mayer
5 * Copyright (c) 2013 David Gibson, IBM Corporation.
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "qemu/osdep.h"
22 #include "cpu.h"
23 #include "exec/exec-all.h"
24
25
26 bool ppc_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
27 MMUAccessType access_type, int mmu_idx,
28 bool probe, uintptr_t retaddr)
29 {
30 PowerPCCPU *cpu = POWERPC_CPU(cs);
31 CPUPPCState *env = &cpu->env;
32 int exception, error_code;
33
34 if (access_type == MMU_INST_FETCH) {
35 exception = POWERPC_EXCP_ISI;
36 error_code = 0x40000000;
37 } else {
38 exception = POWERPC_EXCP_DSI;
39 error_code = 0x40000000;
40 if (access_type == MMU_DATA_STORE) {
41 error_code |= 0x02000000;
42 }
43 env->spr[SPR_DAR] = address;
44 env->spr[SPR_DSISR] = error_code;
45 }
46 cs->exception_index = exception;
47 env->error_code = error_code;
48 cpu_loop_exit_restore(cs, retaddr);
49 }