1 /* 2 * Virtio rng PCI Bindings 3 * 4 * Copyright 2012 Red Hat, Inc. 5 * Copyright 2012 Amit Shah <amit.shah@redhat.com> 6 * 7 * This work is licensed under the terms of the GNU GPL, version 2 or 8 * (at your option) any later version. See the COPYING file in the 9 * top-level directory. 10 */ 11 12 #include "qemu/osdep.h" 13 14 #include "virtio-pci.h" 15 #include "hw/virtio/virtio-rng.h" 16 #include "qapi/error.h" 17 #include "qemu/module.h" 18 19 typedef struct VirtIORngPCI VirtIORngPCI; 20 21 /* 22 * virtio-rng-pci: This extends VirtioPCIProxy. 23 */ 24 #define TYPE_VIRTIO_RNG_PCI "virtio-rng-pci-base" 25 #define VIRTIO_RNG_PCI(obj) \ 26 OBJECT_CHECK(VirtIORngPCI, (obj), TYPE_VIRTIO_RNG_PCI) 27 28 struct VirtIORngPCI { 29 VirtIOPCIProxy parent_obj; 30 VirtIORNG vdev; 31 }; 32 33 static void virtio_rng_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) 34 { 35 VirtIORngPCI *vrng = VIRTIO_RNG_PCI(vpci_dev); 36 DeviceState *vdev = DEVICE(&vrng->vdev); 37 Error *err = NULL; 38 39 qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); 40 object_property_set_bool(OBJECT(vdev), true, "realized", &err); 41 if (err) { 42 error_propagate(errp, err); 43 return; 44 } 45 46 object_property_set_link(OBJECT(vrng), 47 OBJECT(vrng->vdev.conf.rng), "rng", 48 NULL); 49 } 50 51 static void virtio_rng_pci_class_init(ObjectClass *klass, void *data) 52 { 53 DeviceClass *dc = DEVICE_CLASS(klass); 54 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); 55 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); 56 57 k->realize = virtio_rng_pci_realize; 58 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 59 60 pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; 61 pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_RNG; 62 pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; 63 pcidev_k->class_id = PCI_CLASS_OTHERS; 64 } 65 66 static void virtio_rng_initfn(Object *obj) 67 { 68 VirtIORngPCI *dev = VIRTIO_RNG_PCI(obj); 69 70 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 71 TYPE_VIRTIO_RNG); 72 } 73 74 static const VirtioPCIDeviceTypeInfo virtio_rng_pci_info = { 75 .base_name = TYPE_VIRTIO_RNG_PCI, 76 .generic_name = "virtio-rng-pci", 77 .transitional_name = "virtio-rng-pci-transitional", 78 .non_transitional_name = "virtio-rng-pci-non-transitional", 79 .instance_size = sizeof(VirtIORngPCI), 80 .instance_init = virtio_rng_initfn, 81 .class_init = virtio_rng_pci_class_init, 82 }; 83 84 static void virtio_rng_pci_register(void) 85 { 86 virtio_pci_types_register(&virtio_rng_pci_info); 87 } 88 89 type_init(virtio_rng_pci_register) 90