hw/arm/raspi: fix CPRMAN base address
[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 #include "qom/object.h"
20
21 typedef struct VirtIOIOMMUPCI VirtIOIOMMUPCI;
22
23 /*
24 * virtio-iommu-pci: This extends VirtioPCIProxy.
25 *
26 */
27 DECLARE_INSTANCE_CHECKER(VirtIOIOMMUPCI, VIRTIO_IOMMU_PCI,
28 TYPE_VIRTIO_IOMMU_PCI)
29
30 struct VirtIOIOMMUPCI {
31 VirtIOPCIProxy parent_obj;
32 VirtIOIOMMU vdev;
33 };
34
35 static Property virtio_iommu_pci_properties[] = {
36 DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0),
37 DEFINE_PROP_ARRAY("reserved-regions", VirtIOIOMMUPCI,
38 vdev.nb_reserved_regions, vdev.reserved_regions,
39 qdev_prop_reserved_region, ReservedRegion),
40 DEFINE_PROP_END_OF_LIST(),
41 };
42
43 static void virtio_iommu_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
44 {
45 VirtIOIOMMUPCI *dev = VIRTIO_IOMMU_PCI(vpci_dev);
46 DeviceState *vdev = DEVICE(&dev->vdev);
47 VirtIOIOMMU *s = VIRTIO_IOMMU(vdev);
48
49 if (!qdev_get_machine_hotplug_handler(DEVICE(vpci_dev))) {
50 MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine());
51
52 error_setg(errp,
53 "%s machine fails to create iommu-map device tree bindings",
54 mc->name);
55 error_append_hint(errp,
56 "Check your machine implements a hotplug handler "
57 "for the virtio-iommu-pci device\n");
58 error_append_hint(errp, "Check the guest is booted without FW or with "
59 "-no-acpi\n");
60 return;
61 }
62 for (int i = 0; i < s->nb_reserved_regions; i++) {
63 if (s->reserved_regions[i].type != VIRTIO_IOMMU_RESV_MEM_T_RESERVED &&
64 s->reserved_regions[i].type != VIRTIO_IOMMU_RESV_MEM_T_MSI) {
65 error_setg(errp, "reserved region %d has an invalid type", i);
66 error_append_hint(errp, "Valid values are 0 and 1\n");
67 }
68 }
69 object_property_set_link(OBJECT(dev), "primary-bus",
70 OBJECT(pci_get_bus(&vpci_dev->pci_dev)),
71 &error_abort);
72 virtio_pci_force_virtio_1(vpci_dev);
73 qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
74 }
75
76 static void virtio_iommu_pci_class_init(ObjectClass *klass, void *data)
77 {
78 DeviceClass *dc = DEVICE_CLASS(klass);
79 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
80 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
81 k->realize = virtio_iommu_pci_realize;
82 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
83 device_class_set_props(dc, virtio_iommu_pci_properties);
84 pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
85 pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_IOMMU;
86 pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
87 pcidev_k->class_id = PCI_CLASS_OTHERS;
88 dc->hotpluggable = false;
89 }
90
91 static void virtio_iommu_pci_instance_init(Object *obj)
92 {
93 VirtIOIOMMUPCI *dev = VIRTIO_IOMMU_PCI(obj);
94
95 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
96 TYPE_VIRTIO_IOMMU);
97 }
98
99 static const VirtioPCIDeviceTypeInfo virtio_iommu_pci_info = {
100 .base_name = TYPE_VIRTIO_IOMMU_PCI,
101 .generic_name = "virtio-iommu-pci",
102 .non_transitional_name = "virtio-iommu-pci-non-transitional",
103 .instance_size = sizeof(VirtIOIOMMUPCI),
104 .instance_init = virtio_iommu_pci_instance_init,
105 .class_init = virtio_iommu_pci_class_init,
106 };
107
108 static void virtio_iommu_pci_register(void)
109 {
110 virtio_pci_types_register(&virtio_iommu_pci_info);
111 }
112
113 type_init(virtio_iommu_pci_register)
114
115