1 | /* |
2 | * Helpers for loads and stores |
3 | * |
4 | * Copyright (c) 2007 Jocelyn Mayer |
5 | * |
6 | * This library is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU Lesser General Public |
8 | * License as published by the Free Software Foundation; either |
9 | * version 2 of the License, or (at your option) any later version. |
10 | * |
11 | * This library is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | * Lesser General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU Lesser General Public |
17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
18 | */ |
19 | |
20 | #include "qemu/osdep.h" |
21 | #include "cpu.h" |
22 | #include "exec/helper-proto.h" |
23 | #include "exec/exec-all.h" |
24 | #include "exec/cpu_ldst.h" |
25 | |
26 | /* Softmmu support */ |
27 | #ifndef CONFIG_USER_ONLY |
28 | void alpha_cpu_do_unaligned_access(CPUState *cs, vaddr addr, |
29 | MMUAccessType access_type, |
30 | int mmu_idx, uintptr_t retaddr) |
31 | { |
32 | AlphaCPU *cpu = ALPHA_CPU(cs); |
33 | CPUAlphaState *env = &cpu->env; |
34 | uint64_t pc; |
35 | uint32_t insn; |
36 | |
37 | cpu_restore_state(cs, retaddr, true); |
38 | |
39 | pc = env->pc; |
40 | insn = cpu_ldl_code(env, pc); |
41 | |
42 | env->trap_arg0 = addr; |
43 | env->trap_arg1 = insn >> 26; /* opcode */ |
44 | env->trap_arg2 = (insn >> 21) & 31; /* dest regno */ |
45 | cs->exception_index = EXCP_UNALIGN; |
46 | env->error_code = 0; |
47 | cpu_loop_exit(cs); |
48 | } |
49 | |
50 | void alpha_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr, |
51 | vaddr addr, unsigned size, |
52 | MMUAccessType access_type, |
53 | int mmu_idx, MemTxAttrs attrs, |
54 | MemTxResult response, uintptr_t retaddr) |
55 | { |
56 | AlphaCPU *cpu = ALPHA_CPU(cs); |
57 | CPUAlphaState *env = &cpu->env; |
58 | |
59 | env->trap_arg0 = addr; |
60 | env->trap_arg1 = access_type == MMU_DATA_STORE ? 1 : 0; |
61 | cs->exception_index = EXCP_MCHK; |
62 | env->error_code = 0; |
63 | cpu_loop_exit_restore(cs, retaddr); |
64 | } |
65 | #endif /* CONFIG_USER_ONLY */ |
66 | |