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 "exec/exec-all.h" 26 27 28 static void hppa_cpu_set_pc(CPUState *cs, vaddr value) 29 { 30 HPPACPU *cpu = HPPA_CPU(cs); 31 32 cpu->env.iaoq_f = value; 33 cpu->env.iaoq_b = value + 4; 34 } 35 36 static void hppa_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock *tb) 37 { 38 HPPACPU *cpu = HPPA_CPU(cs); 39 40 cpu->env.iaoq_f = tb->pc; 41 cpu->env.iaoq_b = tb->cs_base; 42 cpu->env.psw_n = tb->flags & 1; 43 } 44 45 static void hppa_cpu_disas_set_info(CPUState *cs, disassemble_info *info) 46 { 47 info->mach = bfd_mach_hppa20; 48 info->print_insn = print_insn_hppa; 49 } 50 51 static void hppa_cpu_realizefn(DeviceState *dev, Error **errp) 52 { 53 CPUState *cs = CPU(dev); 54 HPPACPUClass *acc = HPPA_CPU_GET_CLASS(dev); 55 Error *local_err = NULL; 56 57 cpu_exec_realizefn(cs, &local_err); 58 if (local_err != NULL) { 59 error_propagate(errp, local_err); 60 return; 61 } 62 63 qemu_init_vcpu(cs); 64 acc->parent_realize(dev, errp); 65 } 66 67 /* Sort hppabetically by type name. */ 68 static gint hppa_cpu_list_compare(gconstpointer a, gconstpointer b) 69 { 70 ObjectClass *class_a = (ObjectClass *)a; 71 ObjectClass *class_b = (ObjectClass *)b; 72 const char *name_a, *name_b; 73 74 name_a = object_class_get_name(class_a); 75 name_b = object_class_get_name(class_b); 76 return strcmp(name_a, name_b); 77 } 78 79 static void hppa_cpu_list_entry(gpointer data, gpointer user_data) 80 { 81 ObjectClass *oc = data; 82 CPUListState *s = user_data; 83 84 (*s->cpu_fprintf)(s->file, " %s\n", object_class_get_name(oc)); 85 } 86 87 void hppa_cpu_list(FILE *f, fprintf_function cpu_fprintf) 88 { 89 CPUListState s = { 90 .file = f, 91 .cpu_fprintf = cpu_fprintf, 92 }; 93 GSList *list; 94 95 list = object_class_get_list(TYPE_HPPA_CPU, false); 96 list = g_slist_sort(list, hppa_cpu_list_compare); 97 (*cpu_fprintf)(f, "Available CPUs:\n"); 98 g_slist_foreach(list, hppa_cpu_list_entry, &s); 99 g_slist_free(list); 100 } 101 102 static void hppa_cpu_initfn(Object *obj) 103 { 104 CPUState *cs = CPU(obj); 105 HPPACPU *cpu = HPPA_CPU(obj); 106 CPUHPPAState *env = &cpu->env; 107 108 cs->env_ptr = env; 109 cpu_hppa_loaded_fr0(env); 110 set_snan_bit_is_one(true, &env->fp_status); 111 112 hppa_translate_init(); 113 } 114 115 HPPACPU *cpu_hppa_init(const char *cpu_model) 116 { 117 HPPACPU *cpu; 118 119 cpu = HPPA_CPU(object_new(TYPE_HPPA_CPU)); 120 121 object_property_set_bool(OBJECT(cpu), true, "realized", NULL); 122 123 return cpu; 124 } 125 126 static void hppa_cpu_class_init(ObjectClass *oc, void *data) 127 { 128 DeviceClass *dc = DEVICE_CLASS(oc); 129 CPUClass *cc = CPU_CLASS(oc); 130 HPPACPUClass *acc = HPPA_CPU_CLASS(oc); 131 132 acc->parent_realize = dc->realize; 133 dc->realize = hppa_cpu_realizefn; 134 135 cc->do_interrupt = hppa_cpu_do_interrupt; 136 cc->cpu_exec_interrupt = hppa_cpu_exec_interrupt; 137 cc->dump_state = hppa_cpu_dump_state; 138 cc->set_pc = hppa_cpu_set_pc; 139 cc->synchronize_from_tb = hppa_cpu_synchronize_from_tb; 140 cc->gdb_read_register = hppa_cpu_gdb_read_register; 141 cc->gdb_write_register = hppa_cpu_gdb_write_register; 142 cc->handle_mmu_fault = hppa_cpu_handle_mmu_fault; 143 cc->disas_set_info = hppa_cpu_disas_set_info; 144 145 cc->gdb_num_core_regs = 128; 146 } 147 148 static const TypeInfo hppa_cpu_type_info = { 149 .name = TYPE_HPPA_CPU, 150 .parent = TYPE_CPU, 151 .instance_size = sizeof(HPPACPU), 152 .instance_init = hppa_cpu_initfn, 153 .abstract = false, 154 .class_size = sizeof(HPPACPUClass), 155 .class_init = hppa_cpu_class_init, 156 }; 157 158 static void hppa_cpu_register_types(void) 159 { 160 type_register_static(&hppa_cpu_type_info); 161 } 162 163 type_init(hppa_cpu_register_types) 164