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 "virtio-pci.h" 19 #include "hw/9pfs/virtio-9p.h" 20 #include "qemu/module.h" 21 22 /* 23 * virtio-9p-pci: This extends VirtioPCIProxy. 24 */ 25 26 #define TYPE_VIRTIO_9P_PCI "virtio-9p-pci-base" 27 #define VIRTIO_9P_PCI(obj) \ 28 OBJECT_CHECK(V9fsPCIState, (obj), TYPE_VIRTIO_9P_PCI) 29 30 typedef struct V9fsPCIState { 31 VirtIOPCIProxy parent_obj; 32 V9fsVirtioState vdev; 33 } V9fsPCIState; 34 35 static void virtio_9p_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) 36 { 37 V9fsPCIState *dev = VIRTIO_9P_PCI(vpci_dev); 38 DeviceState *vdev = DEVICE(&dev->vdev); 39 40 qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); 41 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 42 } 43 44 static Property virtio_9p_pci_properties[] = { 45 DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, 46 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), 47 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), 48 DEFINE_PROP_END_OF_LIST(), 49 }; 50 51 static void virtio_9p_pci_class_init(ObjectClass *klass, void *data) 52 { 53 DeviceClass *dc = DEVICE_CLASS(klass); 54 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); 55 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); 56 57 k->realize = virtio_9p_pci_realize; 58 pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; 59 pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_9P; 60 pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; 61 pcidev_k->class_id = 0x2; 62 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 63 dc->props = virtio_9p_pci_properties; 64 } 65 66 static void virtio_9p_pci_instance_init(Object *obj) 67 { 68 V9fsPCIState *dev = VIRTIO_9P_PCI(obj); 69 70 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 71 TYPE_VIRTIO_9P); 72 } 73 74 static const VirtioPCIDeviceTypeInfo virtio_9p_pci_info = { 75 .base_name = TYPE_VIRTIO_9P_PCI, 76 .generic_name = "virtio-9p-pci", 77 .transitional_name = "virtio-9p-pci-transitional", 78 .non_transitional_name = "virtio-9p-pci-non-transitional", 79 .instance_size = sizeof(V9fsPCIState), 80 .instance_init = virtio_9p_pci_instance_init, 81 .class_init = virtio_9p_pci_class_init, 82 }; 83 84 static void virtio_9p_pci_register(void) 85 { 86 virtio_pci_types_register(&virtio_9p_pci_info); 87 } 88 89 type_init(virtio_9p_pci_register) 90