97 lines
2.8 KiB
C
97 lines
2.8 KiB
C
/*
|
|
* 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 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)
|