qdev: Convert uses of qdev_set_parent_bus() with Coccinelle
[qemu.git] / hw / virtio / virtio-iommu-pci.c
1 /*
2 * Virtio IOMMU PCI Bindings
3 *
4 * Copyright (c) 2019 Red Hat, Inc.
5 * Written by Eric Auger
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 or
9 * (at your option) any later version.
10 */
11
12 #include "qemu/osdep.h"
13
14 #include "virtio-pci.h"
15 #include "hw/virtio/virtio-iommu.h"
16 #include "hw/qdev-properties.h"
17 #include "qapi/error.h"
18 #include "hw/boards.h"
19
20 typedef struct VirtIOIOMMUPCI VirtIOIOMMUPCI;
21
22 /*
23 * virtio-iommu-pci: This extends VirtioPCIProxy.
24 *
25 */
26 #define VIRTIO_IOMMU_PCI(obj) \
27 OBJECT_CHECK(VirtIOIOMMUPCI, (obj), TYPE_VIRTIO_IOMMU_PCI)
28
29 struct VirtIOIOMMUPCI {
30 VirtIOPCIProxy parent_obj;
31 VirtIOIOMMU vdev;
32 };
33
34 static Property virtio_iommu_pci_properties[] = {
35 DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0),
36 DEFINE_PROP_END_OF_LIST(),
37 };
38
39 static void virtio_iommu_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
40 {
41 VirtIOIOMMUPCI *dev = VIRTIO_IOMMU_PCI(vpci_dev);
42 DeviceState *vdev = DEVICE(&dev->vdev);
43
44 if (!qdev_get_machine_hotplug_handler(DEVICE(vpci_dev))) {
45 MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine());
46
47 error_setg(errp,
48 "%s machine fails to create iommu-map device tree bindings",
49 mc->name);
50 error_append_hint(errp,
51 "Check you machine implements a hotplug handler "
52 "for the virtio-iommu-pci device\n");
53 error_append_hint(errp, "Check the guest is booted without FW or with "
54 "-no-acpi\n");
55 return;
56 }
57 object_property_set_link(OBJECT(dev),
58 OBJECT(pci_get_bus(&vpci_dev->pci_dev)),
59 "primary-bus", errp);
60 qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
61 }
62
63 static void virtio_iommu_pci_class_init(ObjectClass *klass, void *data)
64 {
65 DeviceClass *dc = DEVICE_CLASS(klass);
66 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
67 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
68 k->realize = virtio_iommu_pci_realize;
69 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
70 device_class_set_props(dc, virtio_iommu_pci_properties);
71 pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
72 pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_IOMMU;
73 pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
74 pcidev_k->class_id = PCI_CLASS_OTHERS;
75 dc->hotpluggable = false;
76 }
77
78 static void virtio_iommu_pci_instance_init(Object *obj)
79 {
80 VirtIOIOMMUPCI *dev = VIRTIO_IOMMU_PCI(obj);
81
82 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
83 TYPE_VIRTIO_IOMMU);
84 }
85
86 static const VirtioPCIDeviceTypeInfo virtio_iommu_pci_info = {
87 .base_name = TYPE_VIRTIO_IOMMU_PCI,
88 .generic_name = "virtio-iommu-pci",
89 .transitional_name = "virtio-iommu-pci-transitional",
90 .non_transitional_name = "virtio-iommu-pci-non-transitional",
91 .instance_size = sizeof(VirtIOIOMMUPCI),
92 .instance_init = virtio_iommu_pci_instance_init,
93 .class_init = virtio_iommu_pci_class_init,
94 };
95
96 static void virtio_iommu_pci_register(void)
97 {
98 virtio_pci_types_register(&virtio_iommu_pci_info);
99 }
100
101 type_init(virtio_iommu_pci_register)
102
103