1 /* 2 * QEMU HPPA CPU 3 * 4 * Copyright (c) 2016 Richard Henderson <rth@twiddle.net> 5 * 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. 10 * 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. 15 * 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> 19 */ 20 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 "exec/exec-all.h" 27 28 29 static void hppa_cpu_set_pc(CPUState *cs, vaddr value) 30 { 31 HPPACPU *cpu = HPPA_CPU(cs); 32 33 cpu->env.iaoq_f = value; 34 cpu->env.iaoq_b = value + 4; 35 } 36 37 static void hppa_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock *tb) 38 { 39 HPPACPU *cpu = HPPA_CPU(cs); 40 41 cpu->env.iaoq_f = tb->pc; 42 cpu->env.iaoq_b = tb->cs_base; 43 cpu->env.psw_n = tb->flags & 1; 44 } 45 46 static void hppa_cpu_disas_set_info(CPUState *cs, disassemble_info *info) 47 { 48 info->mach = bfd_mach_hppa20; 49 info->print_insn = print_insn_hppa; 50 } 51 52 static void hppa_cpu_realizefn(DeviceState *dev, Error **errp) 53 { 54 CPUState *cs = CPU(dev); 55 HPPACPUClass *acc = HPPA_CPU_GET_CLASS(dev); 56 Error *local_err = NULL; 57 58 cpu_exec_realizefn(cs, &local_err); 59 if (local_err != NULL) { 60 error_propagate(errp, local_err); 61 return; 62 } 63 64 qemu_init_vcpu(cs); 65 acc->parent_realize(dev, errp); 66 } 67 68 /* Sort hppabetically by type name. */ 69 static gint hppa_cpu_list_compare(gconstpointer a, gconstpointer b) 70 { 71 ObjectClass *class_a = (ObjectClass *)a; 72 ObjectClass *class_b = (ObjectClass *)b; 73 const char *name_a, *name_b; 74 75 name_a = object_class_get_name(class_a); 76 name_b = object_class_get_name(class_b); 77 return strcmp(name_a, name_b); 78 } 79 80 static void hppa_cpu_list_entry(gpointer data, gpointer user_data) 81 { 82 ObjectClass *oc = data; 83 CPUListState *s = user_data; 84 85 (*s->cpu_fprintf)(s->file, " %s\n", object_class_get_name(oc)); 86 } 87 88 void hppa_cpu_list(FILE *f, fprintf_function cpu_fprintf) 89 { 90 CPUListState s = { 91 .file = f, 92 .cpu_fprintf = cpu_fprintf, 93 }; 94 GSList *list; 95 96 list = object_class_get_list(TYPE_HPPA_CPU, false); 97 list = g_slist_sort(list, hppa_cpu_list_compare); 98 (*cpu_fprintf)(f, "Available CPUs:\n"); 99 g_slist_foreach(list, hppa_cpu_list_entry, &s); 100 g_slist_free(list); 101 } 102 103 static void hppa_cpu_initfn(Object *obj) 104 { 105 CPUState *cs = CPU(obj); 106 HPPACPU *cpu = HPPA_CPU(obj); 107 CPUHPPAState *env = &cpu->env; 108 109 cs->env_ptr = env; 110 cpu_hppa_loaded_fr0(env); 111 set_snan_bit_is_one(true, &env->fp_status); 112 113 hppa_translate_init(); 114 } 115 116 HPPACPU *cpu_hppa_init(const char *cpu_model) 117 { 118 HPPACPU *cpu; 119 120 cpu = HPPA_CPU(object_new(TYPE_HPPA_CPU)); 121 122 object_property_set_bool(OBJECT(cpu), true, "realized", NULL); 123 124 return cpu; 125 } 126 127 static void hppa_cpu_class_init(ObjectClass *oc, void *data) 128 { 129 DeviceClass *dc = DEVICE_CLASS(oc); 130 CPUClass *cc = CPU_CLASS(oc); 131 HPPACPUClass *acc = HPPA_CPU_CLASS(oc); 132 133 acc->parent_realize = dc->realize; 134 dc->realize = hppa_cpu_realizefn; 135 136 cc->do_interrupt = hppa_cpu_do_interrupt; 137 cc->cpu_exec_interrupt = hppa_cpu_exec_interrupt; 138 cc->dump_state = hppa_cpu_dump_state; 139 cc->set_pc = hppa_cpu_set_pc; 140 cc->synchronize_from_tb = hppa_cpu_synchronize_from_tb; 141 cc->gdb_read_register = hppa_cpu_gdb_read_register; 142 cc->gdb_write_register = hppa_cpu_gdb_write_register; 143 cc->handle_mmu_fault = hppa_cpu_handle_mmu_fault; 144 cc->disas_set_info = hppa_cpu_disas_set_info; 145 146 cc->gdb_num_core_regs = 128; 147 } 148 149 static const TypeInfo hppa_cpu_type_info = { 150 .name = TYPE_HPPA_CPU, 151 .parent = TYPE_CPU, 152 .instance_size = sizeof(HPPACPU), 153 .instance_init = hppa_cpu_initfn, 154 .abstract = false, 155 .class_size = sizeof(HPPACPUClass), 156 .class_init = hppa_cpu_class_init, 157 }; 158 159 static void hppa_cpu_register_types(void) 160 { 161 type_register_static(&hppa_cpu_type_info); 162 } 163 164 type_init(hppa_cpu_register_types) 165