2 * QEMU PCI IPMI BT emulation
4 * Copyright (c) 2017 Corey Minyard, MontaVista Software, LLC
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 #include "qemu/osdep.h"
25 #include "migration/vmstate.h"
26 #include "qapi/error.h"
27 #include "hw/ipmi/ipmi_bt.h"
28 #include "hw/pci/pci.h"
30 #define TYPE_PCI_IPMI_BT "pci-ipmi-bt"
31 #define PCI_IPMI_BT(obj) OBJECT_CHECK(PCIIPMIBTDevice, (obj), \
34 typedef struct PCIIPMIBTDevice
{
41 static void pci_ipmi_raise_irq(IPMIBT
*ik
)
43 PCIIPMIBTDevice
*pik
= ik
->opaque
;
45 pci_set_irq(&pik
->dev
, true);
48 static void pci_ipmi_lower_irq(IPMIBT
*ik
)
50 PCIIPMIBTDevice
*pik
= ik
->opaque
;
52 pci_set_irq(&pik
->dev
, false);
55 static void pci_ipmi_bt_realize(PCIDevice
*pd
, Error
**errp
)
57 PCIIPMIBTDevice
*pik
= PCI_IPMI_BT(pd
);
58 IPMIInterface
*ii
= IPMI_INTERFACE(pd
);
59 IPMIInterfaceClass
*iic
= IPMI_INTERFACE_GET_CLASS(ii
);
62 error_setg(errp
, "IPMI device requires a bmc attribute to be set");
66 pik
->uuid
= ipmi_next_uuid();
68 pik
->bt
.bmc
->intf
= ii
;
71 pci_config_set_prog_interface(pd
->config
, 0x02); /* BT */
72 pci_config_set_interrupt_pin(pd
->config
, 0x01);
74 pik
->bt
.raise_irq
= pci_ipmi_raise_irq
;
75 pik
->bt
.lower_irq
= pci_ipmi_lower_irq
;
77 iic
->init(ii
, 8, errp
);
81 pci_register_bar(pd
, 0, PCI_BASE_ADDRESS_SPACE_IO
, &pik
->bt
.io
);
84 const VMStateDescription vmstate_PCIIPMIBTDevice
= {
85 .name
= TYPE_IPMI_INTERFACE_PREFIX
"pci-bt",
87 .minimum_version_id
= 1,
88 .fields
= (VMStateField
[]) {
89 VMSTATE_PCI_DEVICE(dev
, PCIIPMIBTDevice
),
90 VMSTATE_STRUCT(bt
, PCIIPMIBTDevice
, 1, vmstate_IPMIBT
, IPMIBT
),
95 static void pci_ipmi_bt_instance_init(Object
*obj
)
97 PCIIPMIBTDevice
*pik
= PCI_IPMI_BT(obj
);
99 ipmi_bmc_find_and_link(obj
, (Object
**) &pik
->bt
.bmc
);
102 static void *pci_ipmi_bt_get_backend_data(IPMIInterface
*ii
)
104 PCIIPMIBTDevice
*pik
= PCI_IPMI_BT(ii
);
109 static void pci_ipmi_bt_class_init(ObjectClass
*oc
, void *data
)
111 DeviceClass
*dc
= DEVICE_CLASS(oc
);
112 PCIDeviceClass
*pdc
= PCI_DEVICE_CLASS(oc
);
113 IPMIInterfaceClass
*iic
= IPMI_INTERFACE_CLASS(oc
);
115 pdc
->vendor_id
= PCI_VENDOR_ID_QEMU
;
116 pdc
->device_id
= PCI_DEVICE_ID_QEMU_IPMI
;
118 pdc
->class_id
= PCI_CLASS_SERIAL_IPMI
;
120 dc
->vmsd
= &vmstate_PCIIPMIBTDevice
;
121 dc
->desc
= "PCI IPMI BT";
122 pdc
->realize
= pci_ipmi_bt_realize
;
124 iic
->get_backend_data
= pci_ipmi_bt_get_backend_data
;
125 ipmi_bt_class_init(iic
);
128 static const TypeInfo pci_ipmi_bt_info
= {
129 .name
= TYPE_PCI_IPMI_BT
,
130 .parent
= TYPE_PCI_DEVICE
,
131 .instance_size
= sizeof(PCIIPMIBTDevice
),
132 .instance_init
= pci_ipmi_bt_instance_init
,
133 .class_init
= pci_ipmi_bt_class_init
,
134 .interfaces
= (InterfaceInfo
[]) {
135 { TYPE_IPMI_INTERFACE
},
136 { INTERFACE_CONVENTIONAL_PCI_DEVICE
},
141 static void pci_ipmi_bt_register_types(void)
143 type_register_static(&pci_ipmi_bt_info
);
146 type_init(pci_ipmi_bt_register_types
)