c7160fff7d
This patch provides a PCI bus interface to the vhost-user-rng backend. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Message-Id: <20211012205904.4106769-3-mathieu.poirier@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/*
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* Vhost-user RNG virtio device PCI glue
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*
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* Copyright (c) 2021 Mathieu Poirier <mathieu.poirier@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-rng.h"
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#include "virtio-pci.h"
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struct VHostUserRNGPCI {
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VirtIOPCIProxy parent_obj;
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VHostUserRNG vdev;
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};
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typedef struct VHostUserRNGPCI VHostUserRNGPCI;
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#define TYPE_VHOST_USER_RNG_PCI "vhost-user-rng-pci-base"
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DECLARE_INSTANCE_CHECKER(VHostUserRNGPCI, VHOST_USER_RNG_PCI,
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TYPE_VHOST_USER_RNG_PCI)
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static Property vhost_user_rng_pci_properties[] = {
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DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
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DEV_NVECTORS_UNSPECIFIED),
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DEFINE_PROP_END_OF_LIST(),
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};
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static void vhost_user_rng_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
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{
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VHostUserRNGPCI *dev = VHOST_USER_RNG_PCI(vpci_dev);
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DeviceState *vdev = DEVICE(&dev->vdev);
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if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
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vpci_dev->nvectors = 1;
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}
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qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
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}
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static void vhost_user_rng_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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k->realize = vhost_user_rng_pci_realize;
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set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
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device_class_set_props(dc, vhost_user_rng_pci_properties);
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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_OTHERS;
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}
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static void vhost_user_rng_pci_instance_init(Object *obj)
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{
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VHostUserRNGPCI *dev = VHOST_USER_RNG_PCI(obj);
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virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
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TYPE_VHOST_USER_RNG);
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}
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static const VirtioPCIDeviceTypeInfo vhost_user_rng_pci_info = {
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.base_name = TYPE_VHOST_USER_RNG_PCI,
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.non_transitional_name = "vhost-user-rng-pci",
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.instance_size = sizeof(VHostUserRNGPCI),
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.instance_init = vhost_user_rng_pci_instance_init,
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.class_init = vhost_user_rng_pci_class_init,
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};
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static void vhost_user_rng_pci_register(void)
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{
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virtio_pci_types_register(&vhost_user_rng_pci_info);
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}
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type_init(vhost_user_rng_pci_register);
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