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9ea02e8f13
Most other virtio-pci devices allow MSI-X, let's have it for rng too. Signed-off-by: David Daney <david.daney@fungible.com> Reviewed-by: Marcin Nowakowski <marcin.nowakowski@fungible.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@fungible.com> Message-Id: <20221014160947.66105-1-philmd@fungible.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
97 lines
2.7 KiB
C
97 lines
2.7 KiB
C
/*
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* Virtio rng PCI Bindings
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*
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* Copyright 2012 Red Hat, Inc.
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* Copyright 2012 Amit Shah <amit.shah@redhat.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* (at your option) any later version. See the COPYING file in the
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* top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "hw/virtio/virtio-pci.h"
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#include "hw/virtio/virtio-rng.h"
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#include "hw/qdev-properties.h"
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#include "qapi/error.h"
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#include "qemu/module.h"
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#include "qom/object.h"
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typedef struct VirtIORngPCI VirtIORngPCI;
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/*
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* virtio-rng-pci: This extends VirtioPCIProxy.
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*/
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#define TYPE_VIRTIO_RNG_PCI "virtio-rng-pci-base"
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DECLARE_INSTANCE_CHECKER(VirtIORngPCI, VIRTIO_RNG_PCI,
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TYPE_VIRTIO_RNG_PCI)
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struct VirtIORngPCI {
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VirtIOPCIProxy parent_obj;
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VirtIORNG vdev;
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};
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static Property virtio_rng_properties[] = {
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DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
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VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
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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 virtio_rng_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
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{
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VirtIORngPCI *vrng = VIRTIO_RNG_PCI(vpci_dev);
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DeviceState *vdev = DEVICE(&vrng->vdev);
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if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
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vpci_dev->nvectors = 2;
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}
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if (!qdev_realize(vdev, BUS(&vpci_dev->bus), errp)) {
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return;
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}
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}
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static void virtio_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 = virtio_rng_pci_realize;
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set_bit(DEVICE_CATEGORY_MISC, dc->categories);
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pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
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pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_RNG;
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pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
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pcidev_k->class_id = PCI_CLASS_OTHERS;
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device_class_set_props(dc, virtio_rng_properties);
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}
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static void virtio_rng_initfn(Object *obj)
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{
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VirtIORngPCI *dev = VIRTIO_RNG_PCI(obj);
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virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
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TYPE_VIRTIO_RNG);
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}
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static const VirtioPCIDeviceTypeInfo virtio_rng_pci_info = {
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.base_name = TYPE_VIRTIO_RNG_PCI,
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.generic_name = "virtio-rng-pci",
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.transitional_name = "virtio-rng-pci-transitional",
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.non_transitional_name = "virtio-rng-pci-non-transitional",
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.instance_size = sizeof(VirtIORngPCI),
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.instance_init = virtio_rng_initfn,
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.class_init = virtio_rng_pci_class_init,
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};
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static void virtio_rng_pci_register(void)
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{
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virtio_pci_types_register(&virtio_rng_pci_info);
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}
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type_init(virtio_rng_pci_register)
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