hw/virtio/virtio-9p-pci.c

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