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 38 if (!qdev_realize(vdev, BUS(&vpci_dev->bus), errp)) { 39 return; 40 } 41 42 object_property_set_link(OBJECT(vrng), "rng", OBJECT(vrng->vdev.conf.rng), 43 NULL); 44 } 45 46 static void virtio_rng_pci_class_init(ObjectClass *klass, void *data) 47 { 48 DeviceClass *dc = DEVICE_CLASS(klass); 49 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); 50 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); 51 52 k->realize = virtio_rng_pci_realize; 53 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 54 55 pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; 56 pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_RNG; 57 pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; 58 pcidev_k->class_id = PCI_CLASS_OTHERS; 59 } 60 61 static void virtio_rng_initfn(Object *obj) 62 { 63 VirtIORngPCI *dev = VIRTIO_RNG_PCI(obj); 64 65 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 66 TYPE_VIRTIO_RNG); 67 } 68 69 static const VirtioPCIDeviceTypeInfo virtio_rng_pci_info = { 70 .base_name = TYPE_VIRTIO_RNG_PCI, 71 .generic_name = "virtio-rng-pci", 72 .transitional_name = "virtio-rng-pci-transitional", 73 .non_transitional_name = "virtio-rng-pci-non-transitional", 74 .instance_size = sizeof(VirtIORngPCI), 75 .instance_init = virtio_rng_initfn, 76 .class_init = virtio_rng_pci_class_init, 77 }; 78 79 static void virtio_rng_pci_register(void) 80 { 81 virtio_pci_types_register(&virtio_rng_pci_info); 82 } 83 84 type_init(virtio_rng_pci_register) 85