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/*
* Virtio serial PCI Bindings
*
* Copyright IBM, Corp. 2007
* Copyright (c) 2009 CodeSourcery
*
* Authors:
* Anthony Liguori <aliguori@us.ibm.com>
* Paul Brook <paul@codesourcery.com>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*
* Contributions after 2012-01-13 are licensed under the terms of the
* GNU GPL, version 2 or (at your option) any later version.
*/
#include "qemu/osdep.h"
#include "hw/qdev-properties.h"
#include "hw/virtio/virtio-serial.h"
#include "qemu/module.h"
#include "virtio-pci.h"
typedef struct VirtIOSerialPCI VirtIOSerialPCI;
/*
* virtio-serial-pci: This extends VirtioPCIProxy.
*/
#define TYPE_VIRTIO_SERIAL_PCI "virtio-serial-pci-base"
#define VIRTIO_SERIAL_PCI(obj) \
OBJECT_CHECK(VirtIOSerialPCI, (obj), TYPE_VIRTIO_SERIAL_PCI)
struct VirtIOSerialPCI {
VirtIOPCIProxy parent_obj;
VirtIOSerial vdev;
};
static void virtio_serial_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
{
VirtIOSerialPCI *dev = VIRTIO_SERIAL_PCI(vpci_dev);
DeviceState *vdev = DEVICE(&dev->vdev);
DeviceState *proxy = DEVICE(vpci_dev);
char *bus_name;
if (vpci_dev->class_code != PCI_CLASS_COMMUNICATION_OTHER &&
vpci_dev->class_code != PCI_CLASS_DISPLAY_OTHER && /* qemu 0.10 */
vpci_dev->class_code != PCI_CLASS_OTHERS) { /* qemu-kvm */
vpci_dev->class_code = PCI_CLASS_COMMUNICATION_OTHER;
}
/* backwards-compatibility with machines that were created with
DEV_NVECTORS_UNSPECIFIED */
if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
vpci_dev->nvectors = dev->vdev.serial.max_virtserial_ports + 1;
}
/*
* For command line compatibility, this sets the virtio-serial-device bus
* name as before.
*/
if (proxy->id) {
bus_name = g_strdup_printf("%s.0", proxy->id);
virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
g_free(bus_name);
}
qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
}
static Property virtio_serial_pci_properties[] = {
DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0),
DEFINE_PROP_END_OF_LIST(),
};
static void virtio_serial_pci_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
k->realize = virtio_serial_pci_realize;
set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
device_class_set_props(dc, virtio_serial_pci_properties);
pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_CONSOLE;
pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER;
}
static void virtio_serial_pci_instance_init(Object *obj)
{
VirtIOSerialPCI *dev = VIRTIO_SERIAL_PCI(obj);
virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
TYPE_VIRTIO_SERIAL);
}
static const VirtioPCIDeviceTypeInfo virtio_serial_pci_info = {
.base_name = TYPE_VIRTIO_SERIAL_PCI,
.generic_name = "virtio-serial-pci",
.transitional_name = "virtio-serial-pci-transitional",
.non_transitional_name = "virtio-serial-pci-non-transitional",
.instance_size = sizeof(VirtIOSerialPCI),
.instance_init = virtio_serial_pci_instance_init,
.class_init = virtio_serial_pci_class_init,
};
static void virtio_serial_pci_register(void)
{
virtio_pci_types_register(&virtio_serial_pci_info);
}
type_init(virtio_serial_pci_register)
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