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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
27#ifndef CONFIG_USER_ONLY
28void 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 if (retaddr) {
38 cpu_restore_state(cs, retaddr);
39 }
40
41 pc = env->pc;
42 insn = cpu_ldl_code(env, pc);
43
44 env->trap_arg0 = addr;
45 env->trap_arg1 = insn >> 26;
46 env->trap_arg2 = (insn >> 21) & 31;
47 cs->exception_index = EXCP_UNALIGN;
48 env->error_code = 0;
49 cpu_loop_exit(cs);
50}
51
52void alpha_cpu_unassigned_access(CPUState *cs, hwaddr addr,
53 bool is_write, bool is_exec, int unused,
54 unsigned size)
55{
56 AlphaCPU *cpu = ALPHA_CPU(cs);
57 CPUAlphaState *env = &cpu->env;
58
59 env->trap_arg0 = addr;
60 env->trap_arg1 = is_write ? 1 : 0;
61 cs->exception_index = EXCP_MCHK;
62 env->error_code = 0;
63
64
65
66
67
68 cpu_loop_exit(cs);
69}
70
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74
75void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
76 int mmu_idx, uintptr_t retaddr)
77{
78 int ret;
79
80 ret = alpha_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
81 if (unlikely(ret != 0)) {
82 if (retaddr) {
83 cpu_restore_state(cs, retaddr);
84 }
85
86 cpu_loop_exit(cs);
87 }
88}
89#endif
90