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authorAnthony Green <green@moxielogic.com>2013-03-18 15:49:22 -0400
committerBlue Swirl <blauwirbel@gmail.com>2013-03-23 14:25:41 +0000
commit525bd324c282c68ff95e389acd647ae115fd003c (patch)
treebffcb580e565cfcf0c706a8305c29c6e0fd5dfc3 /target-moxie/cpu.c
parentf7c61bf8fc1b05613b49d1dd2300d1a1fbc927de (diff)
downloadqemu-arm-525bd324c282c68ff95e389acd647ae115fd003c.tar.gz
Add moxie target code
Signed-off-by: Anthony Green <green@moxielogic.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'target-moxie/cpu.c')
-rw-r--r--target-moxie/cpu.c172
1 files changed, 172 insertions, 0 deletions
diff --git a/target-moxie/cpu.c b/target-moxie/cpu.c
new file mode 100644
index 0000000000..c17d3f0bb5
--- /dev/null
+++ b/target-moxie/cpu.c
@@ -0,0 +1,172 @@
+/*
+ * QEMU Moxie CPU
+ *
+ * Copyright (c) 2013 Anthony Green
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "cpu.h"
+#include "qemu-common.h"
+#include "migration/vmstate.h"
+#include "machine.h"
+
+static void moxie_cpu_reset(CPUState *s)
+{
+ MoxieCPU *cpu = MOXIE_CPU(s);
+ MoxieCPUClass *mcc = MOXIE_CPU_GET_CLASS(cpu);
+ CPUMoxieState *env = &cpu->env;
+
+ if (qemu_loglevel_mask(CPU_LOG_RESET)) {
+ qemu_log("CPU Reset (CPU %d)\n", s->cpu_index);
+ log_cpu_state(env, 0);
+ }
+
+ mcc->parent_reset(s);
+
+ memset(env, 0, offsetof(CPUMoxieState, breakpoints));
+ env->pc = 0x1000;
+
+ tlb_flush(env, 1);
+}
+
+static void moxie_cpu_realizefn(DeviceState *dev, Error **errp)
+{
+ MoxieCPU *cpu = MOXIE_CPU(dev);
+ MoxieCPUClass *occ = MOXIE_CPU_GET_CLASS(dev);
+
+ qemu_init_vcpu(&cpu->env);
+ cpu_reset(CPU(cpu));
+
+ occ->parent_realize(dev, errp);
+}
+
+static void moxie_cpu_initfn(Object *obj)
+{
+ CPUState *cs = CPU(obj);
+ MoxieCPU *cpu = MOXIE_CPU(obj);
+ static int inited;
+
+ cs->env_ptr = &cpu->env;
+ cpu_exec_init(&cpu->env);
+
+ if (tcg_enabled() && !inited) {
+ inited = 1;
+ moxie_translate_init();
+ }
+}
+
+static ObjectClass *moxie_cpu_class_by_name(const char *cpu_model)
+{
+ ObjectClass *oc;
+
+ if (cpu_model == NULL) {
+ return NULL;
+ }
+
+ oc = object_class_by_name(cpu_model);
+ if (oc != NULL && (!object_class_dynamic_cast(oc, TYPE_MOXIE_CPU) ||
+ object_class_is_abstract(oc))) {
+ return NULL;
+ }
+ return oc;
+}
+
+static void moxie_cpu_class_init(ObjectClass *oc, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(oc);
+ CPUClass *cc = CPU_CLASS(oc);
+ MoxieCPUClass *mcc = MOXIE_CPU_CLASS(oc);
+
+ mcc->parent_realize = dc->realize;
+ dc->realize = moxie_cpu_realizefn;
+
+ mcc->parent_reset = cc->reset;
+ cc->reset = moxie_cpu_reset;
+
+ cc->class_by_name = moxie_cpu_class_by_name;
+
+ dc->vmsd = &vmstate_moxie_cpu;
+}
+
+static void moxielite_initfn(Object *obj)
+{
+ /* Set cpu feature flags */
+}
+
+static void moxie_any_initfn(Object *obj)
+{
+ /* Set cpu feature flags */
+}
+
+typedef struct MoxieCPUInfo {
+ const char *name;
+ void (*initfn)(Object *obj);
+} MoxieCPUInfo;
+
+static const MoxieCPUInfo moxie_cpus[] = {
+ { .name = "MoxieLite", .initfn = moxielite_initfn },
+ { .name = "any", .initfn = moxie_any_initfn },
+};
+
+MoxieCPU *cpu_moxie_init(const char *cpu_model)
+{
+ MoxieCPU *cpu;
+ ObjectClass *oc;
+
+ oc = moxie_cpu_class_by_name(cpu_model);
+ if (oc == NULL) {
+ return NULL;
+ }
+ cpu = MOXIE_CPU(object_new(object_class_get_name(oc)));
+ cpu->env.cpu_model_str = cpu_model;
+
+ object_property_set_bool(OBJECT(cpu), true, "realized", NULL);
+
+ return cpu;
+}
+
+static void cpu_register(const MoxieCPUInfo *info)
+{
+ TypeInfo type_info = {
+ .parent = TYPE_MOXIE_CPU,
+ .instance_size = sizeof(MoxieCPU),
+ .instance_init = info->initfn,
+ .class_size = sizeof(MoxieCPUClass),
+ };
+
+ type_info.name = g_strdup_printf("%s-" TYPE_MOXIE_CPU, info->name);
+ type_register(&type_info);
+ g_free((void *)type_info.name);
+}
+
+static const TypeInfo moxie_cpu_type_info = {
+ .name = TYPE_MOXIE_CPU,
+ .parent = TYPE_CPU,
+ .instance_size = sizeof(MoxieCPU),
+ .instance_init = moxie_cpu_initfn,
+ .class_size = sizeof(MoxieCPUClass),
+ .class_init = moxie_cpu_class_init,
+};
+
+static void moxie_cpu_register_types(void)
+{
+ int i;
+ type_register_static(&moxie_cpu_type_info);
+ for (i = 0; i < ARRAY_SIZE(moxie_cpus); i++) {
+ cpu_register(&moxie_cpus[i]);
+ }
+}
+
+type_init(moxie_cpu_register_types)