target/arm: Support multiple EL change hooks
[qemu/ar7.git] / target / moxie / cpu.c
blob4170284da62207361af1ea6a0f17c23574f94d89
1 /*
2 * QEMU Moxie CPU
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"
22 #include "cpu.h"
23 #include "qemu-common.h"
24 #include "migration/vmstate.h"
25 #include "machine.h"
26 #include "exec/exec-all.h"
28 static void moxie_cpu_set_pc(CPUState *cs, vaddr value)
30 MoxieCPU *cpu = MOXIE_CPU(cs);
32 cpu->env.pc = value;
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;
46 mcc->parent_reset(s);
48 memset(env, 0, offsetof(CPUMoxieState, end_reset_fields));
49 env->pc = 0x1000;
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);
67 return;
70 qemu_init_vcpu(cs);
71 cpu_reset(cs);
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);
81 cs->env_ptr = &cpu->env;
84 static ObjectClass *moxie_cpu_class_by_name(const char *cpu_model)
86 ObjectClass *oc;
87 char *typename;
89 typename = g_strdup_printf(MOXIE_CPU_TYPE_NAME("%s"), cpu_model);
90 oc = object_class_by_name(typename);
91 g_free(typename);
92 if (oc != NULL && (!object_class_dynamic_cast(oc, TYPE_MOXIE_CPU) ||
93 object_class_is_abstract(oc))) {
94 return NULL;
96 return oc;
99 static void moxie_cpu_class_init(ObjectClass *oc, void *data)
101 DeviceClass *dc = DEVICE_CLASS(oc);
102 CPUClass *cc = CPU_CLASS(oc);
103 MoxieCPUClass *mcc = MOXIE_CPU_CLASS(oc);
105 device_class_set_parent_realize(dc, moxie_cpu_realizefn,
106 &mcc->parent_realize);
107 mcc->parent_reset = cc->reset;
108 cc->reset = moxie_cpu_reset;
110 cc->class_by_name = moxie_cpu_class_by_name;
112 cc->has_work = moxie_cpu_has_work;
113 cc->do_interrupt = moxie_cpu_do_interrupt;
114 cc->dump_state = moxie_cpu_dump_state;
115 cc->set_pc = moxie_cpu_set_pc;
116 #ifdef CONFIG_USER_ONLY
117 cc->handle_mmu_fault = moxie_cpu_handle_mmu_fault;
118 #else
119 cc->get_phys_page_debug = moxie_cpu_get_phys_page_debug;
120 cc->vmsd = &vmstate_moxie_cpu;
121 #endif
122 cc->disas_set_info = moxie_cpu_disas_set_info;
123 cc->tcg_initialize = moxie_translate_init;
126 static void moxielite_initfn(Object *obj)
128 /* Set cpu feature flags */
131 static void moxie_any_initfn(Object *obj)
133 /* Set cpu feature flags */
136 #define DEFINE_MOXIE_CPU_TYPE(cpu_model, initfn) \
138 .parent = TYPE_MOXIE_CPU, \
139 .instance_init = initfn, \
140 .name = MOXIE_CPU_TYPE_NAME(cpu_model), \
143 static const TypeInfo moxie_cpus_type_infos[] = {
144 { /* base class should be registered first */
145 .name = TYPE_MOXIE_CPU,
146 .parent = TYPE_CPU,
147 .instance_size = sizeof(MoxieCPU),
148 .instance_init = moxie_cpu_initfn,
149 .class_size = sizeof(MoxieCPUClass),
150 .class_init = moxie_cpu_class_init,
152 DEFINE_MOXIE_CPU_TYPE("MoxieLite", moxielite_initfn),
153 DEFINE_MOXIE_CPU_TYPE("any", moxie_any_initfn),
156 DEFINE_TYPES(moxie_cpus_type_infos)