4 * Copyright (c) 2013 Anthony Green
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 2.1 of the License, or (at your option) any later version.
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.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #include "qemu/osdep.h"
21 #include "qapi/error.h"
23 #include "qemu-common.h"
24 #include "migration/vmstate.h"
26 #include "exec/exec-all.h"
28 static void moxie_cpu_set_pc(CPUState *cs, vaddr value)
30 MoxieCPU *cpu = MOXIE_CPU(cs);
35 static bool moxie_cpu_has_work(CPUState *cs)
37 return cs->interrupt_request & CPU_INTERRUPT_HARD;
40 static void moxie_cpu_reset(CPUState *s)
42 MoxieCPU *cpu = MOXIE_CPU(s);
43 MoxieCPUClass *mcc = MOXIE_CPU_GET_CLASS(cpu);
44 CPUMoxieState *env = &cpu->env;
48 memset(env, 0, offsetof(CPUMoxieState, end_reset_fields));
52 static void moxie_cpu_disas_set_info(CPUState *cpu, disassemble_info *info)
54 info->mach = bfd_arch_moxie;
55 info->print_insn = print_insn_moxie;
58 static void moxie_cpu_realizefn(DeviceState *dev, Error **errp)
60 CPUState *cs = CPU(dev);
61 MoxieCPUClass *mcc = MOXIE_CPU_GET_CLASS(dev);
62 Error *local_err = NULL;
64 cpu_exec_realizefn(cs, &local_err);
65 if (local_err != NULL) {
66 error_propagate(errp, local_err);
73 mcc->parent_realize(dev, errp);
76 static void moxie_cpu_initfn(Object *obj)
78 CPUState *cs = CPU(obj);
79 MoxieCPU *cpu = MOXIE_CPU(obj);
82 cs->env_ptr = &cpu->env;
84 if (tcg_enabled() && !inited) {
86 moxie_translate_init();
90 static ObjectClass *moxie_cpu_class_by_name(const char *cpu_model)
94 if (cpu_model == NULL) {
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))) {
106 static void moxie_cpu_class_init(ObjectClass *oc, void *data)
108 DeviceClass *dc = DEVICE_CLASS(oc);
109 CPUClass *cc = CPU_CLASS(oc);
110 MoxieCPUClass *mcc = MOXIE_CPU_CLASS(oc);
112 mcc->parent_realize = dc->realize;
113 dc->realize = moxie_cpu_realizefn;
115 mcc->parent_reset = cc->reset;
116 cc->reset = moxie_cpu_reset;
118 cc->class_by_name = moxie_cpu_class_by_name;
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;
127 cc->get_phys_page_debug = moxie_cpu_get_phys_page_debug;
128 cc->vmsd = &vmstate_moxie_cpu;
130 cc->disas_set_info = moxie_cpu_disas_set_info;
133 static void moxielite_initfn(Object *obj)
135 /* Set cpu feature flags */
138 static void moxie_any_initfn(Object *obj)
140 /* Set cpu feature flags */
143 typedef struct MoxieCPUInfo {
145 void (*initfn)(Object *obj);
148 static const MoxieCPUInfo moxie_cpus[] = {
149 { .name = "MoxieLite", .initfn = moxielite_initfn },
150 { .name = "any", .initfn = moxie_any_initfn },
153 MoxieCPU *cpu_moxie_init(const char *cpu_model)
155 return MOXIE_CPU(cpu_generic_init(TYPE_MOXIE_CPU, cpu_model));
158 static void cpu_register(const MoxieCPUInfo *info)
160 TypeInfo type_info = {
161 .parent = TYPE_MOXIE_CPU,
162 .instance_size = sizeof(MoxieCPU),
163 .instance_init = info->initfn,
164 .class_size = sizeof(MoxieCPUClass),
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);
172 static const TypeInfo moxie_cpu_type_info = {
173 .name = TYPE_MOXIE_CPU,
175 .instance_size = sizeof(MoxieCPU),
176 .instance_init = moxie_cpu_initfn,
177 .class_size = sizeof(MoxieCPUClass),
178 .class_init = moxie_cpu_class_init,
181 static void moxie_cpu_register_types(void)
184 type_register_static(&moxie_cpu_type_info);
185 for (i = 0; i < ARRAY_SIZE(moxie_cpus); i++) {
186 cpu_register(&moxie_cpus[i]);
190 type_init(moxie_cpu_register_types)