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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, sizeof(CPUMoxieState));
49 env->pc = 0x1000;
50
51 tlb_flush(s, 1);
52}
53
54static void moxie_cpu_disas_set_info(CPUState *cpu, disassemble_info *info)
55{
56 info->mach = bfd_arch_moxie;
57 info->print_insn = print_insn_moxie;
58}
59
60static void moxie_cpu_realizefn(DeviceState *dev, Error **errp)
61{
62 CPUState *cs = CPU(dev);
63 MoxieCPUClass *mcc = MOXIE_CPU_GET_CLASS(dev);
64 Error *local_err = NULL;
65
66 cpu_exec_realizefn(cs, &local_err);
67 if (local_err != NULL) {
68 error_propagate(errp, local_err);
69 return;
70 }
71
72 qemu_init_vcpu(cs);
73 cpu_reset(cs);
74
75 mcc->parent_realize(dev, errp);
76}
77
78static void moxie_cpu_initfn(Object *obj)
79{
80 CPUState *cs = CPU(obj);
81 MoxieCPU *cpu = MOXIE_CPU(obj);
82 static int inited;
83
84 cs->env_ptr = &cpu->env;
85
86 if (tcg_enabled() && !inited) {
87 inited = 1;
88 moxie_translate_init();
89 }
90}
91
92static ObjectClass *moxie_cpu_class_by_name(const char *cpu_model)
93{
94 ObjectClass *oc;
95
96 if (cpu_model == NULL) {
97 return NULL;
98 }
99
100 oc = object_class_by_name(cpu_model);
101 if (oc != NULL && (!object_class_dynamic_cast(oc, TYPE_MOXIE_CPU) ||
102 object_class_is_abstract(oc))) {
103 return NULL;
104 }
105 return oc;
106}
107
108static void moxie_cpu_class_init(ObjectClass *oc, void *data)
109{
110 DeviceClass *dc = DEVICE_CLASS(oc);
111 CPUClass *cc = CPU_CLASS(oc);
112 MoxieCPUClass *mcc = MOXIE_CPU_CLASS(oc);
113
114 mcc->parent_realize = dc->realize;
115 dc->realize = moxie_cpu_realizefn;
116
117 mcc->parent_reset = cc->reset;
118 cc->reset = moxie_cpu_reset;
119
120 cc->class_by_name = moxie_cpu_class_by_name;
121
122 cc->has_work = moxie_cpu_has_work;
123 cc->do_interrupt = moxie_cpu_do_interrupt;
124 cc->dump_state = moxie_cpu_dump_state;
125 cc->set_pc = moxie_cpu_set_pc;
126#ifdef CONFIG_USER_ONLY
127 cc->handle_mmu_fault = moxie_cpu_handle_mmu_fault;
128#else
129 cc->get_phys_page_debug = moxie_cpu_get_phys_page_debug;
130 cc->vmsd = &vmstate_moxie_cpu;
131#endif
132 cc->disas_set_info = moxie_cpu_disas_set_info;
133}
134
135static void moxielite_initfn(Object *obj)
136{
137
138}
139
140static void moxie_any_initfn(Object *obj)
141{
142
143}
144
145typedef struct MoxieCPUInfo {
146 const char *name;
147 void (*initfn)(Object *obj);
148} MoxieCPUInfo;
149
150static const MoxieCPUInfo moxie_cpus[] = {
151 { .name = "MoxieLite", .initfn = moxielite_initfn },
152 { .name = "any", .initfn = moxie_any_initfn },
153};
154
155MoxieCPU *cpu_moxie_init(const char *cpu_model)
156{
157 return MOXIE_CPU(cpu_generic_init(TYPE_MOXIE_CPU, cpu_model));
158}
159
160static void cpu_register(const MoxieCPUInfo *info)
161{
162 TypeInfo type_info = {
163 .parent = TYPE_MOXIE_CPU,
164 .instance_size = sizeof(MoxieCPU),
165 .instance_init = info->initfn,
166 .class_size = sizeof(MoxieCPUClass),
167 };
168
169 type_info.name = g_strdup_printf("%s-" TYPE_MOXIE_CPU, info->name);
170 type_register(&type_info);
171 g_free((void *)type_info.name);
172}
173
174static const TypeInfo moxie_cpu_type_info = {
175 .name = TYPE_MOXIE_CPU,
176 .parent = TYPE_CPU,
177 .instance_size = sizeof(MoxieCPU),
178 .instance_init = moxie_cpu_initfn,
179 .class_size = sizeof(MoxieCPUClass),
180 .class_init = moxie_cpu_class_init,
181};
182
183static void moxie_cpu_register_types(void)
184{
185 int i;
186 type_register_static(&moxie_cpu_type_info);
187 for (i = 0; i < ARRAY_SIZE(moxie_cpus); i++) {
188 cpu_register(&moxie_cpus[i]);
189 }
190}
191
192type_init(moxie_cpu_register_types)
193