1 /* 2 * Vhost-user vsock PCI Bindings 3 * 4 * Copyright 2020 Red Hat, Inc. 5 * 6 * This work is licensed under the terms of the GNU GPL, version 2 or 7 * (at your option) any later version. See the COPYING file in the 8 * top-level directory. 9 */ 10 11 #include "qemu/osdep.h" 12 13 #include "hw/virtio/virtio-pci.h" 14 #include "hw/qdev-properties.h" 15 #include "hw/virtio/vhost-user-vsock.h" 16 #include "qom/object.h" 17 18 typedef struct VHostUserVSockPCI VHostUserVSockPCI; 19 20 /* 21 * vhost-user-vsock-pci: This extends VirtioPCIProxy. 22 */ 23 #define TYPE_VHOST_USER_VSOCK_PCI "vhost-user-vsock-pci-base" 24 DECLARE_INSTANCE_CHECKER(VHostUserVSockPCI, VHOST_USER_VSOCK_PCI, 25 TYPE_VHOST_USER_VSOCK_PCI) 26 27 struct VHostUserVSockPCI { 28 VirtIOPCIProxy parent_obj; 29 VHostUserVSock vdev; 30 }; 31 32 /* vhost-user-vsock-pci */ 33 34 static const Property vhost_user_vsock_pci_properties[] = { 35 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3), 36 }; 37 38 static void vhost_user_vsock_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) 39 { 40 VHostUserVSockPCI *dev = VHOST_USER_VSOCK_PCI(vpci_dev); 41 DeviceState *vdev = DEVICE(&dev->vdev); 42 43 /* unlike vhost-vsock, we do not need to care about pre-5.1 compat */ 44 virtio_pci_force_virtio_1(vpci_dev); 45 46 qdev_realize(vdev, BUS(&vpci_dev->bus), errp); 47 } 48 49 static void vhost_user_vsock_pci_class_init(ObjectClass *klass, void *data) 50 { 51 DeviceClass *dc = DEVICE_CLASS(klass); 52 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); 53 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); 54 k->realize = vhost_user_vsock_pci_realize; 55 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 56 device_class_set_props(dc, vhost_user_vsock_pci_properties); 57 pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; 58 pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_VSOCK; 59 pcidev_k->revision = 0x00; 60 pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER; 61 } 62 63 static void vhost_user_vsock_pci_instance_init(Object *obj) 64 { 65 VHostUserVSockPCI *dev = VHOST_USER_VSOCK_PCI(obj); 66 67 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 68 TYPE_VHOST_USER_VSOCK); 69 } 70 71 static const VirtioPCIDeviceTypeInfo vhost_user_vsock_pci_info = { 72 .base_name = TYPE_VHOST_USER_VSOCK_PCI, 73 .generic_name = "vhost-user-vsock-pci", 74 .non_transitional_name = "vhost-user-vsock-pci-non-transitional", 75 .instance_size = sizeof(VHostUserVSockPCI), 76 .instance_init = vhost_user_vsock_pci_instance_init, 77 .class_init = vhost_user_vsock_pci_class_init, 78 }; 79 80 static void virtio_pci_vhost_register(void) 81 { 82 virtio_pci_types_register(&vhost_user_vsock_pci_info); 83 } 84 85 type_init(virtio_pci_vhost_register) 86