6275989647
Lets keep a cleaner split between the base class and the derived vhost-user-device which we can use for generic vhost-user stubs. This includes an update to introduce the vq_size property so the number of entries in a virtq can be defined. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20240104210945.1223134-2-alex.bennee@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
/*
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* Vhost-user generic virtio device PCI glue
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*
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* Copyright (c) 2023 Linaro Ltd
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* Author: Alex Bennée <alex.bennee@linaro.org>
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "qemu/osdep.h"
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#include "hw/qdev-properties.h"
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#include "hw/virtio/vhost-user-base.h"
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#include "hw/virtio/virtio-pci.h"
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struct VHostUserDevicePCI {
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VirtIOPCIProxy parent_obj;
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VHostUserBase vub;
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};
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#define TYPE_VHOST_USER_DEVICE_PCI "vhost-user-device-pci-base"
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OBJECT_DECLARE_SIMPLE_TYPE(VHostUserDevicePCI, VHOST_USER_DEVICE_PCI)
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static void vhost_user_device_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
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{
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VHostUserDevicePCI *dev = VHOST_USER_DEVICE_PCI(vpci_dev);
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DeviceState *vdev = DEVICE(&dev->vub);
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vpci_dev->nvectors = 1;
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qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
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}
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static void vhost_user_device_pci_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
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PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
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/* Reason: stop users confusing themselves */
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dc->user_creatable = false;
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k->realize = vhost_user_device_pci_realize;
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set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
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pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
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pcidev_k->device_id = 0; /* Set by virtio-pci based on virtio id */
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pcidev_k->revision = 0x00;
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pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER;
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}
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static void vhost_user_device_pci_instance_init(Object *obj)
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{
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VHostUserDevicePCI *dev = VHOST_USER_DEVICE_PCI(obj);
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virtio_instance_init_common(obj, &dev->vub, sizeof(dev->vub),
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TYPE_VHOST_USER_DEVICE);
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}
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static const VirtioPCIDeviceTypeInfo vhost_user_device_pci_info = {
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.base_name = TYPE_VHOST_USER_DEVICE_PCI,
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.non_transitional_name = "vhost-user-device-pci",
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.instance_size = sizeof(VHostUserDevicePCI),
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.instance_init = vhost_user_device_pci_instance_init,
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.class_init = vhost_user_device_pci_class_init,
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};
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static void vhost_user_device_pci_register(void)
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{
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virtio_pci_types_register(&vhost_user_device_pci_info);
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}
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type_init(vhost_user_device_pci_register);
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