diff options
author | Yang Zhang <yang.z.zhang@intel.com> | 2015-08-28 09:58:54 +0800 |
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committer | Yang Zhang <yang.z.zhang@intel.com> | 2015-09-01 12:44:00 +0800 |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/target-ppc/user_only_helper.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/target-ppc/user_only_helper.c')
-rw-r--r-- | qemu/target-ppc/user_only_helper.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/qemu/target-ppc/user_only_helper.c b/qemu/target-ppc/user_only_helper.c new file mode 100644 index 000000000..829f66f50 --- /dev/null +++ b/qemu/target-ppc/user_only_helper.c @@ -0,0 +1,46 @@ +/* + * PowerPC MMU stub handling for user mode emulation + * + * Copyright (c) 2003-2007 Jocelyn Mayer + * Copyright (c) 2013 David Gibson, IBM Corporation. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see <http://www.gnu.org/licenses/>. + */ + +#include "cpu.h" + +int ppc_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int rw, + int mmu_idx) +{ + PowerPCCPU *cpu = POWERPC_CPU(cs); + CPUPPCState *env = &cpu->env; + int exception, error_code; + + if (rw == 2) { + exception = POWERPC_EXCP_ISI; + error_code = 0x40000000; + } else { + exception = POWERPC_EXCP_DSI; + error_code = 0x40000000; + if (rw) { + error_code |= 0x02000000; + } + env->spr[SPR_DAR] = address; + env->spr[SPR_DSISR] = error_code; + } + cs->exception_index = exception; + env->error_code = error_code; + + return 1; +} |