1 /* 2 * Virtio 9p PCI Bindings 3 * 4 * Copyright IBM, Corp. 2010 5 * 6 * Authors: 7 * Anthony Liguori <aliguori@us.ibm.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2. See 10 * the COPYING file in the top-level directory. 11 * 12 * Contributions after 2012-01-13 are licensed under the terms of the 13 * GNU GPL, version 2 or (at your option) any later version. 14 */ 15 16 #include "qemu/osdep.h" 17 18 #include "hw/virtio/virtio-pci.h" 19 #include "hw/9pfs/virtio-9p.h" 20 #include "hw/qdev-properties.h" 21 #include "qemu/module.h" 22 #include "qom/object.h" 23 24 /* 25 * virtio-9p-pci: This extends VirtioPCIProxy. 26 */ 27 28 #define TYPE_VIRTIO_9P_PCI "virtio-9p-pci-base" 29 typedef struct V9fsPCIState V9fsPCIState; 30 DECLARE_INSTANCE_CHECKER(V9fsPCIState, VIRTIO_9P_PCI, 31 TYPE_VIRTIO_9P_PCI) 32 33 struct V9fsPCIState { 34 VirtIOPCIProxy parent_obj; 35 V9fsVirtioState vdev; 36 }; 37 38 static void virtio_9p_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) 39 { 40 V9fsPCIState *dev = VIRTIO_9P_PCI(vpci_dev); 41 DeviceState *vdev = DEVICE(&dev->vdev); 42 43 qdev_realize(vdev, BUS(&vpci_dev->bus), errp); 44 } 45 46 static Property virtio_9p_pci_properties[] = { 47 DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, 48 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), 49 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), 50 DEFINE_PROP_END_OF_LIST(), 51 }; 52 53 static void virtio_9p_pci_class_init(ObjectClass *klass, void *data) 54 { 55 DeviceClass *dc = DEVICE_CLASS(klass); 56 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); 57 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); 58 59 k->realize = virtio_9p_pci_realize; 60 pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; 61 pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_9P; 62 pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; 63 pcidev_k->class_id = 0x2; 64 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 65 device_class_set_props(dc, virtio_9p_pci_properties); 66 } 67 68 static void virtio_9p_pci_instance_init(Object *obj) 69 { 70 V9fsPCIState *dev = VIRTIO_9P_PCI(obj); 71 72 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 73 TYPE_VIRTIO_9P); 74 } 75 76 static const VirtioPCIDeviceTypeInfo virtio_9p_pci_info = { 77 .base_name = TYPE_VIRTIO_9P_PCI, 78 .generic_name = "virtio-9p-pci", 79 .transitional_name = "virtio-9p-pci-transitional", 80 .non_transitional_name = "virtio-9p-pci-non-transitional", 81 .instance_size = sizeof(V9fsPCIState), 82 .instance_init = virtio_9p_pci_instance_init, 83 .class_init = virtio_9p_pci_class_init, 84 }; 85 86 static void virtio_9p_pci_register(void) 87 { 88 virtio_pci_types_register(&virtio_9p_pci_info); 89 } 90 91 type_init(virtio_9p_pci_register) 92