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/*
* Vhost vsock PCI Bindings
*
* Copyright 2015 Red Hat, Inc.
*
* Authors:
* Stefan Hajnoczi <stefanha@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or
* (at your option) any later version. See the COPYING file in the
* top-level directory.
*/
#include "qemu/osdep.h"
#include "hw/virtio/virtio-pci.h"
#include "hw/qdev-properties.h"
#include "hw/virtio/vhost-vsock.h"
#include "qemu/module.h"
#include "qom/object.h"
typedef struct VHostVSockPCI VHostVSockPCI;
/*
* vhost-vsock-pci: This extends VirtioPCIProxy.
*/
#define TYPE_VHOST_VSOCK_PCI "vhost-vsock-pci-base"
DECLARE_INSTANCE_CHECKER(VHostVSockPCI, VHOST_VSOCK_PCI,
TYPE_VHOST_VSOCK_PCI)
struct VHostVSockPCI {
VirtIOPCIProxy parent_obj;
VHostVSock vdev;
};
/* vhost-vsock-pci */
static const Property vhost_vsock_pci_properties[] = {
DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3),
DEFINE_PROP_END_OF_LIST(),
};
static void vhost_vsock_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
{
VHostVSockPCI *dev = VHOST_VSOCK_PCI(vpci_dev);
DeviceState *vdev = DEVICE(&dev->vdev);
VirtIODevice *virtio_dev = VIRTIO_DEVICE(vdev);
/*
* To avoid migration issues, we force virtio version 1 only when
* legacy check is enabled in the new machine types (>= 5.1).
*/
if (!virtio_legacy_check_disabled(virtio_dev)) {
virtio_pci_force_virtio_1(vpci_dev);
}
qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
}
static void vhost_vsock_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 = vhost_vsock_pci_realize;
set_bit(DEVICE_CATEGORY_MISC, dc->categories);
device_class_set_props(dc, vhost_vsock_pci_properties);
pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_VSOCK;
pcidev_k->revision = 0x00;
pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER;
}
static void vhost_vsock_pci_instance_init(Object *obj)
{
VHostVSockPCI *dev = VHOST_VSOCK_PCI(obj);
virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
TYPE_VHOST_VSOCK);
}
static const VirtioPCIDeviceTypeInfo vhost_vsock_pci_info = {
.base_name = TYPE_VHOST_VSOCK_PCI,
.generic_name = "vhost-vsock-pci",
.non_transitional_name = "vhost-vsock-pci-non-transitional",
.instance_size = sizeof(VHostVSockPCI),
.instance_init = vhost_vsock_pci_instance_init,
.class_init = vhost_vsock_pci_class_init,
};
static void virtio_pci_vhost_register(void)
{
virtio_pci_types_register(&vhost_vsock_pci_info);
}
type_init(virtio_pci_vhost_register)
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