1 /*
2 * QEMU simulated PCI pvpanic device.
3 *
4 * Copyright (C) 2020 Oracle
5 *
6 * Authors:
7 * Mihai Carabas <mihai.carabas@oracle.com>
8 *
9 * This work is licensed under the terms of the GNU GPL, version 2 or later.
10 * See the COPYING file in the top-level directory.
11 *
12 */
13
14 #include "qemu/osdep.h"
15 #include "qemu/module.h"
16 #include "system/runstate.h"
17
18 #include "hw/nvram/fw_cfg.h"
19 #include "hw/qdev-properties.h"
20 #include "migration/vmstate.h"
21 #include "hw/misc/pvpanic.h"
22 #include "qom/object.h"
23 #include "hw/pci/pci_device.h"
24 #include "standard-headers/misc/pvpanic.h"
25
26 OBJECT_DECLARE_SIMPLE_TYPE(PVPanicPCIState, PVPANIC_PCI_DEVICE)
27
28 /*
29 * PVPanicPCIState for PCI device
30 */
31 typedef struct PVPanicPCIState {
32 PCIDevice dev;
33 PVPanicState pvpanic;
34 } PVPanicPCIState;
35
36 static const VMStateDescription vmstate_pvpanic_pci = {
37 .name = "pvpanic-pci",
38 .version_id = 1,
39 .minimum_version_id = 1,
40 .fields = (const VMStateField[]) {
41 VMSTATE_PCI_DEVICE(dev, PVPanicPCIState),
42 VMSTATE_END_OF_LIST()
43 }
44 };
45
pvpanic_pci_realizefn(PCIDevice * dev,Error ** errp)46 static void pvpanic_pci_realizefn(PCIDevice *dev, Error **errp)
47 {
48 PVPanicPCIState *s = PVPANIC_PCI_DEVICE(dev);
49 PVPanicState *ps = &s->pvpanic;
50
51 pvpanic_setup_io(ps, DEVICE(s), 2);
52
53 pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &ps->mr);
54 }
55
56 static const Property pvpanic_pci_properties[] = {
57 DEFINE_PROP_UINT8("events", PVPanicPCIState, pvpanic.events,
58 PVPANIC_EVENTS),
59 };
60
pvpanic_pci_class_init(ObjectClass * klass,const void * data)61 static void pvpanic_pci_class_init(ObjectClass *klass, const void *data)
62 {
63 DeviceClass *dc = DEVICE_CLASS(klass);
64 PCIDeviceClass *pc = PCI_DEVICE_CLASS(klass);
65
66 device_class_set_props(dc, pvpanic_pci_properties);
67
68 pc->realize = pvpanic_pci_realizefn;
69 pc->vendor_id = PCI_VENDOR_ID_REDHAT;
70 pc->device_id = PCI_DEVICE_ID_REDHAT_PVPANIC;
71 pc->revision = 1;
72 pc->class_id = PCI_CLASS_SYSTEM_OTHER;
73 dc->vmsd = &vmstate_pvpanic_pci;
74
75 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
76 }
77
78 static const TypeInfo pvpanic_pci_info = {
79 .name = TYPE_PVPANIC_PCI_DEVICE,
80 .parent = TYPE_PCI_DEVICE,
81 .instance_size = sizeof(PVPanicPCIState),
82 .class_init = pvpanic_pci_class_init,
83 .interfaces = (const InterfaceInfo[]) {
84 { INTERFACE_CONVENTIONAL_PCI_DEVICE },
85 { }
86 }
87 };
88
pvpanic_register_types(void)89 static void pvpanic_register_types(void)
90 {
91 type_register_static(&pvpanic_pci_info);
92 }
93
94 type_init(pvpanic_register_types);
95