1 /* 2 * Vhost-user RNG virtio device PCI glue 3 * 4 * Copyright (c) 2021 Mathieu Poirier <mathieu.poirier@linaro.org> 5 * 6 * SPDX-License-Identifier: GPL-2.0-or-later 7 */ 8 9 #include "qemu/osdep.h" 10 #include "hw/qdev-properties.h" 11 #include "hw/virtio/vhost-user-rng.h" 12 #include "hw/virtio/virtio-pci.h" 13 14 struct VHostUserRNGPCI { 15 VirtIOPCIProxy parent_obj; 16 VHostUserRNG vdev; 17 }; 18 19 typedef struct VHostUserRNGPCI VHostUserRNGPCI; 20 21 #define TYPE_VHOST_USER_RNG_PCI "vhost-user-rng-pci-base" 22 23 DECLARE_INSTANCE_CHECKER(VHostUserRNGPCI, VHOST_USER_RNG_PCI, 24 TYPE_VHOST_USER_RNG_PCI) 25 26 static Property vhost_user_rng_pci_properties[] = { 27 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 28 DEV_NVECTORS_UNSPECIFIED), 29 DEFINE_PROP_END_OF_LIST(), 30 }; 31 32 static void vhost_user_rng_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) 33 { 34 VHostUserRNGPCI *dev = VHOST_USER_RNG_PCI(vpci_dev); 35 DeviceState *vdev = DEVICE(&dev->vdev); 36 37 if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) { 38 vpci_dev->nvectors = 1; 39 } 40 41 qdev_realize(vdev, BUS(&vpci_dev->bus), errp); 42 } 43 44 static void vhost_user_rng_pci_class_init(ObjectClass *klass, void *data) 45 { 46 DeviceClass *dc = DEVICE_CLASS(klass); 47 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); 48 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); 49 k->realize = vhost_user_rng_pci_realize; 50 set_bit(DEVICE_CATEGORY_INPUT, dc->categories); 51 device_class_set_props(dc, vhost_user_rng_pci_properties); 52 pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; 53 pcidev_k->device_id = 0; /* Set by virtio-pci based on virtio id */ 54 pcidev_k->revision = 0x00; 55 pcidev_k->class_id = PCI_CLASS_OTHERS; 56 } 57 58 static void vhost_user_rng_pci_instance_init(Object *obj) 59 { 60 VHostUserRNGPCI *dev = VHOST_USER_RNG_PCI(obj); 61 62 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 63 TYPE_VHOST_USER_RNG); 64 } 65 66 static const VirtioPCIDeviceTypeInfo vhost_user_rng_pci_info = { 67 .base_name = TYPE_VHOST_USER_RNG_PCI, 68 .non_transitional_name = "vhost-user-rng-pci", 69 .instance_size = sizeof(VHostUserRNGPCI), 70 .instance_init = vhost_user_rng_pci_instance_init, 71 .class_init = vhost_user_rng_pci_class_init, 72 }; 73 74 static void vhost_user_rng_pci_register(void) 75 { 76 virtio_pci_types_register(&vhost_user_rng_pci_info); 77 } 78 79 type_init(vhost_user_rng_pci_register); 80