iotests: Enhance 223, 233 to cover 'qemu-nbd --list'
[qemu/ar7.git] / target / m68k / cpu.c
blob582e3a73b3705c19283fcab9646c40033c254202
1 /*
2 * QEMU Motorola 68k CPU
4 * Copyright (c) 2012 SUSE LINUX Products GmbH
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 Lesser General Public
17 * License along with this library; if not, see
18 * <http://www.gnu.org/licenses/lgpl-2.1.html>
21 #include "qemu/osdep.h"
22 #include "qapi/error.h"
23 #include "cpu.h"
24 #include "qemu-common.h"
25 #include "migration/vmstate.h"
26 #include "fpu/softfloat.h"
28 static void m68k_cpu_set_pc(CPUState *cs, vaddr value)
30 M68kCPU *cpu = M68K_CPU(cs);
32 cpu->env.pc = value;
35 static bool m68k_cpu_has_work(CPUState *cs)
37 return cs->interrupt_request & CPU_INTERRUPT_HARD;
40 static void m68k_set_feature(CPUM68KState *env, int feature)
42 env->features |= (1u << feature);
45 /* CPUClass::reset() */
46 static void m68k_cpu_reset(CPUState *s)
48 M68kCPU *cpu = M68K_CPU(s);
49 M68kCPUClass *mcc = M68K_CPU_GET_CLASS(cpu);
50 CPUM68KState *env = &cpu->env;
51 floatx80 nan = floatx80_default_nan(NULL);
52 int i;
54 mcc->parent_reset(s);
56 memset(env, 0, offsetof(CPUM68KState, end_reset_fields));
57 #ifdef CONFIG_SOFTMMU
58 cpu_m68k_set_sr(env, SR_S | SR_I);
59 #else
60 cpu_m68k_set_sr(env, 0);
61 #endif
62 for (i = 0; i < 8; i++) {
63 env->fregs[i].d = nan;
65 cpu_m68k_set_fpcr(env, 0);
66 env->fpsr = 0;
68 /* TODO: We should set PC from the interrupt vector. */
69 env->pc = 0;
72 static void m68k_cpu_disas_set_info(CPUState *s, disassemble_info *info)
74 M68kCPU *cpu = M68K_CPU(s);
75 CPUM68KState *env = &cpu->env;
76 info->print_insn = print_insn_m68k;
77 if (m68k_feature(env, M68K_FEATURE_M68000)) {
78 info->mach = bfd_mach_m68040;
82 /* CPU models */
84 static ObjectClass *m68k_cpu_class_by_name(const char *cpu_model)
86 ObjectClass *oc;
87 char *typename;
89 typename = g_strdup_printf(M68K_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_M68K_CPU) == NULL ||
93 object_class_is_abstract(oc))) {
94 return NULL;
96 return oc;
99 static void m5206_cpu_initfn(Object *obj)
101 M68kCPU *cpu = M68K_CPU(obj);
102 CPUM68KState *env = &cpu->env;
104 m68k_set_feature(env, M68K_FEATURE_CF_ISA_A);
107 static void m68000_cpu_initfn(Object *obj)
109 M68kCPU *cpu = M68K_CPU(obj);
110 CPUM68KState *env = &cpu->env;
112 m68k_set_feature(env, M68K_FEATURE_M68000);
113 m68k_set_feature(env, M68K_FEATURE_USP);
114 m68k_set_feature(env, M68K_FEATURE_WORD_INDEX);
115 m68k_set_feature(env, M68K_FEATURE_MOVEP);
118 static void m68020_cpu_initfn(Object *obj)
120 M68kCPU *cpu = M68K_CPU(obj);
121 CPUM68KState *env = &cpu->env;
123 m68k_set_feature(env, M68K_FEATURE_M68000);
124 m68k_set_feature(env, M68K_FEATURE_USP);
125 m68k_set_feature(env, M68K_FEATURE_WORD_INDEX);
126 m68k_set_feature(env, M68K_FEATURE_QUAD_MULDIV);
127 m68k_set_feature(env, M68K_FEATURE_BRAL);
128 m68k_set_feature(env, M68K_FEATURE_BCCL);
129 m68k_set_feature(env, M68K_FEATURE_BITFIELD);
130 m68k_set_feature(env, M68K_FEATURE_EXT_FULL);
131 m68k_set_feature(env, M68K_FEATURE_SCALED_INDEX);
132 m68k_set_feature(env, M68K_FEATURE_LONG_MULDIV);
133 m68k_set_feature(env, M68K_FEATURE_FPU);
134 m68k_set_feature(env, M68K_FEATURE_CAS);
135 m68k_set_feature(env, M68K_FEATURE_BKPT);
136 m68k_set_feature(env, M68K_FEATURE_RTD);
137 m68k_set_feature(env, M68K_FEATURE_CHK2);
138 m68k_set_feature(env, M68K_FEATURE_MOVEP);
140 #define m68030_cpu_initfn m68020_cpu_initfn
142 static void m68040_cpu_initfn(Object *obj)
144 M68kCPU *cpu = M68K_CPU(obj);
145 CPUM68KState *env = &cpu->env;
147 m68020_cpu_initfn(obj);
148 m68k_set_feature(env, M68K_FEATURE_M68040);
151 static void m68060_cpu_initfn(Object *obj)
153 M68kCPU *cpu = M68K_CPU(obj);
154 CPUM68KState *env = &cpu->env;
156 m68k_set_feature(env, M68K_FEATURE_M68000);
157 m68k_set_feature(env, M68K_FEATURE_USP);
158 m68k_set_feature(env, M68K_FEATURE_WORD_INDEX);
159 m68k_set_feature(env, M68K_FEATURE_BRAL);
160 m68k_set_feature(env, M68K_FEATURE_BCCL);
161 m68k_set_feature(env, M68K_FEATURE_BITFIELD);
162 m68k_set_feature(env, M68K_FEATURE_EXT_FULL);
163 m68k_set_feature(env, M68K_FEATURE_SCALED_INDEX);
164 m68k_set_feature(env, M68K_FEATURE_LONG_MULDIV);
165 m68k_set_feature(env, M68K_FEATURE_FPU);
166 m68k_set_feature(env, M68K_FEATURE_CAS);
167 m68k_set_feature(env, M68K_FEATURE_BKPT);
168 m68k_set_feature(env, M68K_FEATURE_RTD);
169 m68k_set_feature(env, M68K_FEATURE_CHK2);
172 static void m5208_cpu_initfn(Object *obj)
174 M68kCPU *cpu = M68K_CPU(obj);
175 CPUM68KState *env = &cpu->env;
177 m68k_set_feature(env, M68K_FEATURE_CF_ISA_A);
178 m68k_set_feature(env, M68K_FEATURE_CF_ISA_APLUSC);
179 m68k_set_feature(env, M68K_FEATURE_BRAL);
180 m68k_set_feature(env, M68K_FEATURE_CF_EMAC);
181 m68k_set_feature(env, M68K_FEATURE_USP);
184 static void cfv4e_cpu_initfn(Object *obj)
186 M68kCPU *cpu = M68K_CPU(obj);
187 CPUM68KState *env = &cpu->env;
189 m68k_set_feature(env, M68K_FEATURE_CF_ISA_A);
190 m68k_set_feature(env, M68K_FEATURE_CF_ISA_B);
191 m68k_set_feature(env, M68K_FEATURE_BRAL);
192 m68k_set_feature(env, M68K_FEATURE_CF_FPU);
193 m68k_set_feature(env, M68K_FEATURE_CF_EMAC);
194 m68k_set_feature(env, M68K_FEATURE_USP);
197 static void any_cpu_initfn(Object *obj)
199 M68kCPU *cpu = M68K_CPU(obj);
200 CPUM68KState *env = &cpu->env;
202 m68k_set_feature(env, M68K_FEATURE_CF_ISA_A);
203 m68k_set_feature(env, M68K_FEATURE_CF_ISA_B);
204 m68k_set_feature(env, M68K_FEATURE_CF_ISA_APLUSC);
205 m68k_set_feature(env, M68K_FEATURE_BRAL);
206 m68k_set_feature(env, M68K_FEATURE_CF_FPU);
207 /* MAC and EMAC are mututally exclusive, so pick EMAC.
208 It's mostly backwards compatible. */
209 m68k_set_feature(env, M68K_FEATURE_CF_EMAC);
210 m68k_set_feature(env, M68K_FEATURE_CF_EMAC_B);
211 m68k_set_feature(env, M68K_FEATURE_USP);
212 m68k_set_feature(env, M68K_FEATURE_EXT_FULL);
213 m68k_set_feature(env, M68K_FEATURE_WORD_INDEX);
216 static void m68k_cpu_realizefn(DeviceState *dev, Error **errp)
218 CPUState *cs = CPU(dev);
219 M68kCPU *cpu = M68K_CPU(dev);
220 M68kCPUClass *mcc = M68K_CPU_GET_CLASS(dev);
221 Error *local_err = NULL;
223 register_m68k_insns(&cpu->env);
225 cpu_exec_realizefn(cs, &local_err);
226 if (local_err != NULL) {
227 error_propagate(errp, local_err);
228 return;
231 m68k_cpu_init_gdb(cpu);
233 cpu_reset(cs);
234 qemu_init_vcpu(cs);
236 mcc->parent_realize(dev, errp);
239 static void m68k_cpu_initfn(Object *obj)
241 CPUState *cs = CPU(obj);
242 M68kCPU *cpu = M68K_CPU(obj);
243 CPUM68KState *env = &cpu->env;
245 cs->env_ptr = env;
248 static const VMStateDescription vmstate_m68k_cpu = {
249 .name = "cpu",
250 .unmigratable = 1,
253 static void m68k_cpu_class_init(ObjectClass *c, void *data)
255 M68kCPUClass *mcc = M68K_CPU_CLASS(c);
256 CPUClass *cc = CPU_CLASS(c);
257 DeviceClass *dc = DEVICE_CLASS(c);
259 device_class_set_parent_realize(dc, m68k_cpu_realizefn,
260 &mcc->parent_realize);
261 mcc->parent_reset = cc->reset;
262 cc->reset = m68k_cpu_reset;
264 cc->class_by_name = m68k_cpu_class_by_name;
265 cc->has_work = m68k_cpu_has_work;
266 cc->do_interrupt = m68k_cpu_do_interrupt;
267 cc->cpu_exec_interrupt = m68k_cpu_exec_interrupt;
268 cc->dump_state = m68k_cpu_dump_state;
269 cc->set_pc = m68k_cpu_set_pc;
270 cc->gdb_read_register = m68k_cpu_gdb_read_register;
271 cc->gdb_write_register = m68k_cpu_gdb_write_register;
272 cc->handle_mmu_fault = m68k_cpu_handle_mmu_fault;
273 #if defined(CONFIG_SOFTMMU)
274 cc->do_unassigned_access = m68k_cpu_unassigned_access;
275 cc->get_phys_page_debug = m68k_cpu_get_phys_page_debug;
276 #endif
277 cc->disas_set_info = m68k_cpu_disas_set_info;
278 cc->tcg_initialize = m68k_tcg_init;
280 cc->gdb_num_core_regs = 18;
281 cc->gdb_core_xml_file = "cf-core.xml";
283 dc->vmsd = &vmstate_m68k_cpu;
286 #define DEFINE_M68K_CPU_TYPE(cpu_model, initfn) \
288 .name = M68K_CPU_TYPE_NAME(cpu_model), \
289 .instance_init = initfn, \
290 .parent = TYPE_M68K_CPU, \
293 static const TypeInfo m68k_cpus_type_infos[] = {
294 { /* base class should be registered first */
295 .name = TYPE_M68K_CPU,
296 .parent = TYPE_CPU,
297 .instance_size = sizeof(M68kCPU),
298 .instance_init = m68k_cpu_initfn,
299 .abstract = true,
300 .class_size = sizeof(M68kCPUClass),
301 .class_init = m68k_cpu_class_init,
303 DEFINE_M68K_CPU_TYPE("m68000", m68000_cpu_initfn),
304 DEFINE_M68K_CPU_TYPE("m68020", m68020_cpu_initfn),
305 DEFINE_M68K_CPU_TYPE("m68030", m68030_cpu_initfn),
306 DEFINE_M68K_CPU_TYPE("m68040", m68040_cpu_initfn),
307 DEFINE_M68K_CPU_TYPE("m68060", m68060_cpu_initfn),
308 DEFINE_M68K_CPU_TYPE("m5206", m5206_cpu_initfn),
309 DEFINE_M68K_CPU_TYPE("m5208", m5208_cpu_initfn),
310 DEFINE_M68K_CPU_TYPE("cfv4e", cfv4e_cpu_initfn),
311 DEFINE_M68K_CPU_TYPE("any", any_cpu_initfn),
314 DEFINE_TYPES(m68k_cpus_type_infos)