1 /*
2 * QEMU simulated pvpanic device (MMIO frontend)
3 *
4 * Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved.
5 *
6 * SPDX-License-Identifier: GPL-2.0-or-later
7 */
8
9 #include "qemu/osdep.h"
10
11 #include "hw/qdev-properties.h"
12 #include "hw/misc/pvpanic.h"
13 #include "hw/sysbus.h"
14 #include "standard-headers/misc/pvpanic.h"
15
16 OBJECT_DECLARE_SIMPLE_TYPE(PVPanicMMIOState, PVPANIC_MMIO_DEVICE)
17
18 #define PVPANIC_MMIO_SIZE 0x2
19
20 struct PVPanicMMIOState {
21 SysBusDevice parent_obj;
22
23 PVPanicState pvpanic;
24 };
25
pvpanic_mmio_initfn(Object * obj)26 static void pvpanic_mmio_initfn(Object *obj)
27 {
28 PVPanicMMIOState *s = PVPANIC_MMIO_DEVICE(obj);
29
30 pvpanic_setup_io(&s->pvpanic, DEVICE(s), PVPANIC_MMIO_SIZE);
31 sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->pvpanic.mr);
32 }
33
34 static const Property pvpanic_mmio_properties[] = {
35 DEFINE_PROP_UINT8("events", PVPanicMMIOState, pvpanic.events,
36 PVPANIC_PANICKED | PVPANIC_CRASH_LOADED),
37 };
38
pvpanic_mmio_class_init(ObjectClass * klass,const void * data)39 static void pvpanic_mmio_class_init(ObjectClass *klass, const void *data)
40 {
41 DeviceClass *dc = DEVICE_CLASS(klass);
42
43 device_class_set_props(dc, pvpanic_mmio_properties);
44 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
45 }
46
47 static const TypeInfo pvpanic_mmio_info = {
48 .name = TYPE_PVPANIC_MMIO_DEVICE,
49 .parent = TYPE_SYS_BUS_DEVICE,
50 .instance_size = sizeof(PVPanicMMIOState),
51 .instance_init = pvpanic_mmio_initfn,
52 .class_init = pvpanic_mmio_class_init,
53 };
54
pvpanic_register_types(void)55 static void pvpanic_register_types(void)
56 {
57 type_register_static(&pvpanic_mmio_info);
58 }
59
60 type_init(pvpanic_register_types)
61