2 * Virtio serial PCI Bindings
4 * Copyright IBM, Corp. 2007
5 * Copyright (c) 2009 CodeSourcery
8 * Anthony Liguori <aliguori@us.ibm.com>
9 * Paul Brook <paul@codesourcery.com>
11 * This work is licensed under the terms of the GNU GPL, version 2. See
12 * the COPYING file in the top-level directory.
14 * Contributions after 2012-01-13 are licensed under the terms of the
15 * GNU GPL, version 2 or (at your option) any later version.
18 #include "qemu/osdep.h"
20 #include "hw/qdev-properties.h"
21 #include "hw/virtio/virtio-serial.h"
22 #include "qemu/module.h"
23 #include "virtio-pci.h"
25 typedef struct VirtIOSerialPCI VirtIOSerialPCI
;
28 * virtio-serial-pci: This extends VirtioPCIProxy.
30 #define TYPE_VIRTIO_SERIAL_PCI "virtio-serial-pci-base"
31 #define VIRTIO_SERIAL_PCI(obj) \
32 OBJECT_CHECK(VirtIOSerialPCI, (obj), TYPE_VIRTIO_SERIAL_PCI)
34 struct VirtIOSerialPCI
{
35 VirtIOPCIProxy parent_obj
;
39 static void virtio_serial_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
41 VirtIOSerialPCI
*dev
= VIRTIO_SERIAL_PCI(vpci_dev
);
42 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
43 DeviceState
*proxy
= DEVICE(vpci_dev
);
46 if (vpci_dev
->class_code
!= PCI_CLASS_COMMUNICATION_OTHER
&&
47 vpci_dev
->class_code
!= PCI_CLASS_DISPLAY_OTHER
&& /* qemu 0.10 */
48 vpci_dev
->class_code
!= PCI_CLASS_OTHERS
) { /* qemu-kvm */
49 vpci_dev
->class_code
= PCI_CLASS_COMMUNICATION_OTHER
;
52 /* backwards-compatibility with machines that were created with
53 DEV_NVECTORS_UNSPECIFIED */
54 if (vpci_dev
->nvectors
== DEV_NVECTORS_UNSPECIFIED
) {
55 vpci_dev
->nvectors
= dev
->vdev
.serial
.max_virtserial_ports
+ 1;
59 * For command line compatibility, this sets the virtio-serial-device bus
63 bus_name
= g_strdup_printf("%s.0", proxy
->id
);
64 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev
), bus_name
);
68 qdev_realize(vdev
, BUS(&vpci_dev
->bus
), errp
);
71 static Property virtio_serial_pci_properties
[] = {
72 DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy
, flags
,
73 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT
, true),
74 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
, 2),
75 DEFINE_PROP_UINT32("class", VirtIOPCIProxy
, class_code
, 0),
76 DEFINE_PROP_END_OF_LIST(),
79 static void virtio_serial_pci_class_init(ObjectClass
*klass
, void *data
)
81 DeviceClass
*dc
= DEVICE_CLASS(klass
);
82 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
83 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
84 k
->realize
= virtio_serial_pci_realize
;
85 set_bit(DEVICE_CATEGORY_INPUT
, dc
->categories
);
86 device_class_set_props(dc
, virtio_serial_pci_properties
);
87 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
88 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_CONSOLE
;
89 pcidev_k
->revision
= VIRTIO_PCI_ABI_VERSION
;
90 pcidev_k
->class_id
= PCI_CLASS_COMMUNICATION_OTHER
;
93 static void virtio_serial_pci_instance_init(Object
*obj
)
95 VirtIOSerialPCI
*dev
= VIRTIO_SERIAL_PCI(obj
);
97 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
101 static const VirtioPCIDeviceTypeInfo virtio_serial_pci_info
= {
102 .base_name
= TYPE_VIRTIO_SERIAL_PCI
,
103 .generic_name
= "virtio-serial-pci",
104 .transitional_name
= "virtio-serial-pci-transitional",
105 .non_transitional_name
= "virtio-serial-pci-non-transitional",
106 .instance_size
= sizeof(VirtIOSerialPCI
),
107 .instance_init
= virtio_serial_pci_instance_init
,
108 .class_init
= virtio_serial_pci_class_init
,
111 static void virtio_serial_pci_register(void)
113 virtio_pci_types_register(&virtio_serial_pci_info
);
116 type_init(virtio_serial_pci_register
)