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"
22 #include "qemu-common.h"
23 #include "migration/vmstate.h"
26 static void moxie_cpu_set_pc(CPUState *cs, vaddr value)
28 MoxieCPU *cpu = MOXIE_CPU(cs);
33 static bool moxie_cpu_has_work(CPUState *cs)
35 return cs->interrupt_request & CPU_INTERRUPT_HARD;
38 static void moxie_cpu_reset(CPUState *s)
40 MoxieCPU *cpu = MOXIE_CPU(s);
41 MoxieCPUClass *mcc = MOXIE_CPU_GET_CLASS(cpu);
42 CPUMoxieState *env = &cpu->env;
46 memset(env, 0, sizeof(CPUMoxieState));
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);
66 mcc->parent_realize(dev, errp);
69 static void moxie_cpu_initfn(Object *obj)
71 CPUState *cs = CPU(obj);
72 MoxieCPU *cpu = MOXIE_CPU(obj);
75 cs->env_ptr = &cpu->env;
76 cpu_exec_init(cs, &error_abort);
78 if (tcg_enabled() && !inited) {
80 moxie_translate_init();
84 static ObjectClass *moxie_cpu_class_by_name(const char *cpu_model)
88 if (cpu_model == NULL) {
92 oc = object_class_by_name(cpu_model);
93 if (oc != NULL && (!object_class_dynamic_cast(oc, TYPE_MOXIE_CPU) ||
94 object_class_is_abstract(oc))) {
100 static void moxie_cpu_class_init(ObjectClass *oc, void *data)
102 DeviceClass *dc = DEVICE_CLASS(oc);
103 CPUClass *cc = CPU_CLASS(oc);
104 MoxieCPUClass *mcc = MOXIE_CPU_CLASS(oc);
106 mcc->parent_realize = dc->realize;
107 dc->realize = moxie_cpu_realizefn;
109 mcc->parent_reset = cc->reset;
110 cc->reset = moxie_cpu_reset;
112 cc->class_by_name = moxie_cpu_class_by_name;
114 cc->has_work = moxie_cpu_has_work;
115 cc->do_interrupt = moxie_cpu_do_interrupt;
116 cc->dump_state = moxie_cpu_dump_state;
117 cc->set_pc = moxie_cpu_set_pc;
118 #ifdef CONFIG_USER_ONLY
119 cc->handle_mmu_fault = moxie_cpu_handle_mmu_fault;
121 cc->get_phys_page_debug = moxie_cpu_get_phys_page_debug;
122 cc->vmsd = &vmstate_moxie_cpu;
124 cc->disas_set_info = moxie_cpu_disas_set_info;
127 * Reason: moxie_cpu_initfn() calls cpu_exec_init(), which saves
128 * the object in cpus -> dangling pointer after final
131 dc->cannot_destroy_with_object_finalize_yet = true;
134 static void moxielite_initfn(Object *obj)
136 /* Set cpu feature flags */
139 static void moxie_any_initfn(Object *obj)
141 /* Set cpu feature flags */
144 typedef struct MoxieCPUInfo {
146 void (*initfn)(Object *obj);
149 static const MoxieCPUInfo moxie_cpus[] = {
150 { .name = "MoxieLite", .initfn = moxielite_initfn },
151 { .name = "any", .initfn = moxie_any_initfn },
154 MoxieCPU *cpu_moxie_init(const char *cpu_model)
156 return MOXIE_CPU(cpu_generic_init(TYPE_MOXIE_CPU, cpu_model));
159 static void cpu_register(const MoxieCPUInfo *info)
161 TypeInfo type_info = {
162 .parent = TYPE_MOXIE_CPU,
163 .instance_size = sizeof(MoxieCPU),
164 .instance_init = info->initfn,
165 .class_size = sizeof(MoxieCPUClass),
168 type_info.name = g_strdup_printf("%s-" TYPE_MOXIE_CPU, info->name);
169 type_register(&type_info);
170 g_free((void *)type_info.name);
173 static const TypeInfo moxie_cpu_type_info = {
174 .name = TYPE_MOXIE_CPU,
176 .instance_size = sizeof(MoxieCPU),
177 .instance_init = moxie_cpu_initfn,
178 .class_size = sizeof(MoxieCPUClass),
179 .class_init = moxie_cpu_class_init,
182 static void moxie_cpu_register_types(void)
185 type_register_static(&moxie_cpu_type_info);
186 for (i = 0; i < ARRAY_SIZE(moxie_cpus); i++) {
187 cpu_register(&moxie_cpus[i]);
191 type_init(moxie_cpu_register_types)