mirror of https://gitee.com/openkylin/qemu.git
164 lines
4.3 KiB
C
164 lines
4.3 KiB
C
/*
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* QEMU HPPA CPU
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*
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* Copyright (c) 2016 Richard Henderson <rth@twiddle.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see
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* <http://www.gnu.org/licenses/lgpl-2.1.html>
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "cpu.h"
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#include "qemu-common.h"
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#include "exec/exec-all.h"
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static void hppa_cpu_set_pc(CPUState *cs, vaddr value)
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{
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HPPACPU *cpu = HPPA_CPU(cs);
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cpu->env.iaoq_f = value;
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cpu->env.iaoq_b = value + 4;
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}
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static void hppa_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock *tb)
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{
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HPPACPU *cpu = HPPA_CPU(cs);
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cpu->env.iaoq_f = tb->pc;
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cpu->env.iaoq_b = tb->cs_base;
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cpu->env.psw_n = tb->flags & 1;
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}
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static void hppa_cpu_disas_set_info(CPUState *cs, disassemble_info *info)
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{
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info->mach = bfd_mach_hppa20;
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info->print_insn = print_insn_hppa;
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}
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static void hppa_cpu_realizefn(DeviceState *dev, Error **errp)
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{
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CPUState *cs = CPU(dev);
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HPPACPUClass *acc = HPPA_CPU_GET_CLASS(dev);
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Error *local_err = NULL;
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cpu_exec_realizefn(cs, &local_err);
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if (local_err != NULL) {
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error_propagate(errp, local_err);
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return;
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}
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qemu_init_vcpu(cs);
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acc->parent_realize(dev, errp);
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}
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/* Sort hppabetically by type name. */
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static gint hppa_cpu_list_compare(gconstpointer a, gconstpointer b)
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{
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ObjectClass *class_a = (ObjectClass *)a;
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ObjectClass *class_b = (ObjectClass *)b;
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const char *name_a, *name_b;
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name_a = object_class_get_name(class_a);
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name_b = object_class_get_name(class_b);
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return strcmp(name_a, name_b);
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}
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static void hppa_cpu_list_entry(gpointer data, gpointer user_data)
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{
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ObjectClass *oc = data;
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CPUListState *s = user_data;
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(*s->cpu_fprintf)(s->file, " %s\n", object_class_get_name(oc));
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}
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void hppa_cpu_list(FILE *f, fprintf_function cpu_fprintf)
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{
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CPUListState s = {
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.file = f,
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.cpu_fprintf = cpu_fprintf,
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};
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GSList *list;
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list = object_class_get_list(TYPE_HPPA_CPU, false);
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list = g_slist_sort(list, hppa_cpu_list_compare);
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(*cpu_fprintf)(f, "Available CPUs:\n");
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g_slist_foreach(list, hppa_cpu_list_entry, &s);
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g_slist_free(list);
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}
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static void hppa_cpu_initfn(Object *obj)
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{
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CPUState *cs = CPU(obj);
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HPPACPU *cpu = HPPA_CPU(obj);
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CPUHPPAState *env = &cpu->env;
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cs->env_ptr = env;
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cpu_hppa_loaded_fr0(env);
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set_snan_bit_is_one(true, &env->fp_status);
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hppa_translate_init();
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}
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HPPACPU *cpu_hppa_init(const char *cpu_model)
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{
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HPPACPU *cpu;
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cpu = HPPA_CPU(object_new(TYPE_HPPA_CPU));
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object_property_set_bool(OBJECT(cpu), true, "realized", NULL);
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return cpu;
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}
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static void hppa_cpu_class_init(ObjectClass *oc, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(oc);
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CPUClass *cc = CPU_CLASS(oc);
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HPPACPUClass *acc = HPPA_CPU_CLASS(oc);
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acc->parent_realize = dc->realize;
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dc->realize = hppa_cpu_realizefn;
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cc->do_interrupt = hppa_cpu_do_interrupt;
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cc->cpu_exec_interrupt = hppa_cpu_exec_interrupt;
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cc->dump_state = hppa_cpu_dump_state;
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cc->set_pc = hppa_cpu_set_pc;
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cc->synchronize_from_tb = hppa_cpu_synchronize_from_tb;
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cc->gdb_read_register = hppa_cpu_gdb_read_register;
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cc->gdb_write_register = hppa_cpu_gdb_write_register;
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cc->handle_mmu_fault = hppa_cpu_handle_mmu_fault;
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cc->disas_set_info = hppa_cpu_disas_set_info;
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cc->gdb_num_core_regs = 128;
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}
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static const TypeInfo hppa_cpu_type_info = {
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.name = TYPE_HPPA_CPU,
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.parent = TYPE_CPU,
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.instance_size = sizeof(HPPACPU),
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.instance_init = hppa_cpu_initfn,
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.abstract = false,
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.class_size = sizeof(HPPACPUClass),
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.class_init = hppa_cpu_class_init,
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};
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static void hppa_cpu_register_types(void)
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{
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type_register_static(&hppa_cpu_type_info);
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}
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type_init(hppa_cpu_register_types)
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