4 * Copyright (c) 2012 SUSE LINUX Products GmbH
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
11 * This program 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
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see
18 * <http://www.gnu.org/licenses/gpl-2.0.html>
22 #include "qemu-common.h"
23 #include "sysemu/kvm.h"
24 #include "qemu/notify.h"
25 #include "sysemu/sysemu.h"
27 typedef struct CPUExistsArgs
{
32 static void cpu_exist_cb(CPUState
*cpu
, void *data
)
34 CPUClass
*klass
= CPU_GET_CLASS(cpu
);
35 CPUExistsArgs
*arg
= data
;
37 if (klass
->get_arch_id(cpu
) == arg
->id
) {
42 bool cpu_exists(int64_t id
)
44 CPUExistsArgs data
= {
49 qemu_for_each_cpu(cpu_exist_cb
, &data
);
53 bool cpu_paging_enabled(const CPUState
*cpu
)
55 CPUClass
*cc
= CPU_GET_CLASS(cpu
);
57 return cc
->get_paging_enabled(cpu
);
60 static bool cpu_common_get_paging_enabled(const CPUState
*cpu
)
65 /* CPU hot-plug notifiers */
66 static NotifierList cpu_added_notifiers
=
67 NOTIFIER_LIST_INITIALIZER(cpu_add_notifiers
);
69 void qemu_register_cpu_added_notifier(Notifier
*notifier
)
71 notifier_list_add(&cpu_added_notifiers
, notifier
);
74 void cpu_reset_interrupt(CPUState
*cpu
, int mask
)
76 cpu
->interrupt_request
&= ~mask
;
79 int cpu_write_elf32_qemunote(WriteCoreDumpFunction f
, CPUState
*cpu
,
82 CPUClass
*cc
= CPU_GET_CLASS(cpu
);
84 return (*cc
->write_elf32_qemunote
)(f
, cpu
, opaque
);
87 static int cpu_common_write_elf32_qemunote(WriteCoreDumpFunction f
,
88 CPUState
*cpu
, void *opaque
)
93 int cpu_write_elf32_note(WriteCoreDumpFunction f
, CPUState
*cpu
,
94 int cpuid
, void *opaque
)
96 CPUClass
*cc
= CPU_GET_CLASS(cpu
);
98 return (*cc
->write_elf32_note
)(f
, cpu
, cpuid
, opaque
);
101 static int cpu_common_write_elf32_note(WriteCoreDumpFunction f
,
102 CPUState
*cpu
, int cpuid
,
108 int cpu_write_elf64_qemunote(WriteCoreDumpFunction f
, CPUState
*cpu
,
111 CPUClass
*cc
= CPU_GET_CLASS(cpu
);
113 return (*cc
->write_elf64_qemunote
)(f
, cpu
, opaque
);
116 static int cpu_common_write_elf64_qemunote(WriteCoreDumpFunction f
,
117 CPUState
*cpu
, void *opaque
)
122 int cpu_write_elf64_note(WriteCoreDumpFunction f
, CPUState
*cpu
,
123 int cpuid
, void *opaque
)
125 CPUClass
*cc
= CPU_GET_CLASS(cpu
);
127 return (*cc
->write_elf64_note
)(f
, cpu
, cpuid
, opaque
);
130 static int cpu_common_write_elf64_note(WriteCoreDumpFunction f
,
131 CPUState
*cpu
, int cpuid
,
138 void cpu_reset(CPUState
*cpu
)
140 CPUClass
*klass
= CPU_GET_CLASS(cpu
);
142 if (klass
->reset
!= NULL
) {
143 (*klass
->reset
)(cpu
);
147 static void cpu_common_reset(CPUState
*cpu
)
149 cpu
->exit_request
= 0;
150 cpu
->interrupt_request
= 0;
151 cpu
->current_tb
= NULL
;
155 ObjectClass
*cpu_class_by_name(const char *typename
, const char *cpu_model
)
157 CPUClass
*cc
= CPU_CLASS(object_class_by_name(typename
));
159 return cc
->class_by_name(cpu_model
);
162 static ObjectClass
*cpu_common_class_by_name(const char *cpu_model
)
167 static void cpu_common_realizefn(DeviceState
*dev
, Error
**errp
)
169 CPUState
*cpu
= CPU(dev
);
171 if (dev
->hotplugged
) {
172 cpu_synchronize_post_init(cpu
);
173 notifier_list_notify(&cpu_added_notifiers
, dev
);
178 static int64_t cpu_common_get_arch_id(CPUState
*cpu
)
180 return cpu
->cpu_index
;
183 static void cpu_class_init(ObjectClass
*klass
, void *data
)
185 DeviceClass
*dc
= DEVICE_CLASS(klass
);
186 CPUClass
*k
= CPU_CLASS(klass
);
188 k
->class_by_name
= cpu_common_class_by_name
;
189 k
->reset
= cpu_common_reset
;
190 k
->get_arch_id
= cpu_common_get_arch_id
;
191 k
->get_paging_enabled
= cpu_common_get_paging_enabled
;
192 k
->write_elf32_qemunote
= cpu_common_write_elf32_qemunote
;
193 k
->write_elf32_note
= cpu_common_write_elf32_note
;
194 k
->write_elf64_qemunote
= cpu_common_write_elf64_qemunote
;
195 k
->write_elf64_note
= cpu_common_write_elf64_note
;
196 dc
->realize
= cpu_common_realizefn
;
200 static const TypeInfo cpu_type_info
= {
202 .parent
= TYPE_DEVICE
,
203 .instance_size
= sizeof(CPUState
),
205 .class_size
= sizeof(CPUClass
),
206 .class_init
= cpu_class_init
,
209 static void cpu_register_types(void)
211 type_register_static(&cpu_type_info
);
214 type_init(cpu_register_types
)