tests: virtio-9p: rename PCI configuration test
[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 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
24 int ppc_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int rw,
25 int mmu_idx)
26 {
27 PowerPCCPU *cpu = POWERPC_CPU(cs);
28 CPUPPCState *env = &cpu->env;
29 int exception, error_code;
30
31 if (rw == 2) {
32 exception = POWERPC_EXCP_ISI;
33 error_code = 0x40000000;
34 } else {
35 exception = POWERPC_EXCP_DSI;
36 error_code = 0x40000000;
37 if (rw) {
38 error_code |= 0x02000000;
39 }
40 env->spr[SPR_DAR] = address;
41 env->spr[SPR_DSISR] = error_code;
42 }
43 cs->exception_index = exception;
44 env->error_code = error_code;
45
46 return 1;
47 }