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20#include "qemu/osdep.h"
21#include "qapi/error.h"
22#include "cpu.h"
23#include "qemu-common.h"
24#include "migration/vmstate.h"
25#include "machine.h"
26#include "exec/exec-all.h"
27
28static void moxie_cpu_set_pc(CPUState *cs, vaddr value)
29{
30 MoxieCPU *cpu = MOXIE_CPU(cs);
31
32 cpu->env.pc = value;
33}
34
35static bool moxie_cpu_has_work(CPUState *cs)
36{
37 return cs->interrupt_request & CPU_INTERRUPT_HARD;
38}
39
40static void moxie_cpu_reset(CPUState *s)
41{
42 MoxieCPU *cpu = MOXIE_CPU(s);
43 MoxieCPUClass *mcc = MOXIE_CPU_GET_CLASS(cpu);
44 CPUMoxieState *env = &cpu->env;
45
46 mcc->parent_reset(s);
47
48 memset(env, 0, offsetof(CPUMoxieState, end_reset_fields));
49 env->pc = 0x1000;
50}
51
52static void moxie_cpu_disas_set_info(CPUState *cpu, disassemble_info *info)
53{
54 info->mach = bfd_arch_moxie;
55 info->print_insn = print_insn_moxie;
56}
57
58static void moxie_cpu_realizefn(DeviceState *dev, Error **errp)
59{
60 CPUState *cs = CPU(dev);
61 MoxieCPUClass *mcc = MOXIE_CPU_GET_CLASS(dev);
62 Error *local_err = NULL;
63
64 cpu_exec_realizefn(cs, &local_err);
65 if (local_err != NULL) {
66 error_propagate(errp, local_err);
67 return;
68 }
69
70 qemu_init_vcpu(cs);
71 cpu_reset(cs);
72
73 mcc->parent_realize(dev, errp);
74}
75
76static void moxie_cpu_initfn(Object *obj)
77{
78 CPUState *cs = CPU(obj);
79 MoxieCPU *cpu = MOXIE_CPU(obj);
80 static int inited;
81
82 cs->env_ptr = &cpu->env;
83
84 if (tcg_enabled() && !inited) {
85 inited = 1;
86 moxie_translate_init();
87 }
88}
89
90static ObjectClass *moxie_cpu_class_by_name(const char *cpu_model)
91{
92 ObjectClass *oc;
93
94 if (cpu_model == NULL) {
95 return NULL;
96 }
97
98 oc = object_class_by_name(cpu_model);
99 if (oc != NULL && (!object_class_dynamic_cast(oc, TYPE_MOXIE_CPU) ||
100 object_class_is_abstract(oc))) {
101 return NULL;
102 }
103 return oc;
104}
105
106static void moxie_cpu_class_init(ObjectClass *oc, void *data)
107{
108 DeviceClass *dc = DEVICE_CLASS(oc);
109 CPUClass *cc = CPU_CLASS(oc);
110 MoxieCPUClass *mcc = MOXIE_CPU_CLASS(oc);
111
112 mcc->parent_realize = dc->realize;
113 dc->realize = moxie_cpu_realizefn;
114
115 mcc->parent_reset = cc->reset;
116 cc->reset = moxie_cpu_reset;
117
118 cc->class_by_name = moxie_cpu_class_by_name;
119
120 cc->has_work = moxie_cpu_has_work;
121 cc->do_interrupt = moxie_cpu_do_interrupt;
122 cc->dump_state = moxie_cpu_dump_state;
123 cc->set_pc = moxie_cpu_set_pc;
124#ifdef CONFIG_USER_ONLY
125 cc->handle_mmu_fault = moxie_cpu_handle_mmu_fault;
126#else
127 cc->get_phys_page_debug = moxie_cpu_get_phys_page_debug;
128 cc->vmsd = &vmstate_moxie_cpu;
129#endif
130 cc->disas_set_info = moxie_cpu_disas_set_info;
131}
132
133static void moxielite_initfn(Object *obj)
134{
135
136}
137
138static void moxie_any_initfn(Object *obj)
139{
140
141}
142
143typedef struct MoxieCPUInfo {
144 const char *name;
145 void (*initfn)(Object *obj);
146} MoxieCPUInfo;
147
148static const MoxieCPUInfo moxie_cpus[] = {
149 { .name = "MoxieLite", .initfn = moxielite_initfn },
150 { .name = "any", .initfn = moxie_any_initfn },
151};
152
153MoxieCPU *cpu_moxie_init(const char *cpu_model)
154{
155 return MOXIE_CPU(cpu_generic_init(TYPE_MOXIE_CPU, cpu_model));
156}
157
158static void cpu_register(const MoxieCPUInfo *info)
159{
160 TypeInfo type_info = {
161 .parent = TYPE_MOXIE_CPU,
162 .instance_size = sizeof(MoxieCPU),
163 .instance_init = info->initfn,
164 .class_size = sizeof(MoxieCPUClass),
165 };
166
167 type_info.name = g_strdup_printf("%s-" TYPE_MOXIE_CPU, info->name);
168 type_register(&type_info);
169 g_free((void *)type_info.name);
170}
171
172static const TypeInfo moxie_cpu_type_info = {
173 .name = TYPE_MOXIE_CPU,
174 .parent = TYPE_CPU,
175 .instance_size = sizeof(MoxieCPU),
176 .instance_init = moxie_cpu_initfn,
177 .class_size = sizeof(MoxieCPUClass),
178 .class_init = moxie_cpu_class_init,
179};
180
181static void moxie_cpu_register_types(void)
182{
183 int i;
184 type_register_static(&moxie_cpu_type_info);
185 for (i = 0; i < ARRAY_SIZE(moxie_cpus); i++) {
186 cpu_register(&moxie_cpus[i]);
187 }
188}
189
190type_init(moxie_cpu_register_types)
191