1 | /* |
2 | * Virtio balloon PCI Bindings |
3 | * |
4 | * Copyright IBM, Corp. 2007 |
5 | * Copyright (c) 2009 CodeSourcery |
6 | * |
7 | * Authors: |
8 | * Anthony Liguori <aliguori@us.ibm.com> |
9 | * Paul Brook <paul@codesourcery.com> |
10 | * |
11 | * Contributions after 2012-01-13 are licensed under the terms of the |
12 | * GNU GPL, version 2 or (at your option) any later version. |
13 | */ |
14 | |
15 | #include "qemu/osdep.h" |
16 | |
17 | #include "virtio-pci.h" |
18 | #include "hw/qdev-properties.h" |
19 | #include "hw/virtio/virtio-balloon.h" |
20 | #include "qapi/error.h" |
21 | #include "qemu/module.h" |
22 | |
23 | typedef struct VirtIOBalloonPCI VirtIOBalloonPCI; |
24 | |
25 | /* |
26 | * virtio-balloon-pci: This extends VirtioPCIProxy. |
27 | */ |
28 | #define TYPE_VIRTIO_BALLOON_PCI "virtio-balloon-pci-base" |
29 | #define VIRTIO_BALLOON_PCI(obj) \ |
30 | OBJECT_CHECK(VirtIOBalloonPCI, (obj), TYPE_VIRTIO_BALLOON_PCI) |
31 | |
32 | struct VirtIOBalloonPCI { |
33 | VirtIOPCIProxy parent_obj; |
34 | VirtIOBalloon vdev; |
35 | }; |
36 | static Property virtio_balloon_pci_properties[] = { |
37 | DEFINE_PROP_UINT32("class" , VirtIOPCIProxy, class_code, 0), |
38 | DEFINE_PROP_END_OF_LIST(), |
39 | }; |
40 | |
41 | static void virtio_balloon_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
42 | { |
43 | VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(vpci_dev); |
44 | DeviceState *vdev = DEVICE(&dev->vdev); |
45 | |
46 | if (vpci_dev->class_code != PCI_CLASS_OTHERS && |
47 | vpci_dev->class_code != PCI_CLASS_MEMORY_RAM) { /* qemu < 1.1 */ |
48 | vpci_dev->class_code = PCI_CLASS_OTHERS; |
49 | } |
50 | |
51 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
52 | object_property_set_bool(OBJECT(vdev), true, "realized" , errp); |
53 | } |
54 | |
55 | static void virtio_balloon_pci_class_init(ObjectClass *klass, void *data) |
56 | { |
57 | DeviceClass *dc = DEVICE_CLASS(klass); |
58 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); |
59 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); |
60 | k->realize = virtio_balloon_pci_realize; |
61 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
62 | dc->props = virtio_balloon_pci_properties; |
63 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; |
64 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BALLOON; |
65 | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; |
66 | pcidev_k->class_id = PCI_CLASS_OTHERS; |
67 | } |
68 | |
69 | static void virtio_balloon_pci_instance_init(Object *obj) |
70 | { |
71 | VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(obj); |
72 | |
73 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), |
74 | TYPE_VIRTIO_BALLOON); |
75 | object_property_add_alias(obj, "guest-stats" , OBJECT(&dev->vdev), |
76 | "guest-stats" , &error_abort); |
77 | object_property_add_alias(obj, "guest-stats-polling-interval" , |
78 | OBJECT(&dev->vdev), |
79 | "guest-stats-polling-interval" , &error_abort); |
80 | } |
81 | |
82 | static const VirtioPCIDeviceTypeInfo virtio_balloon_pci_info = { |
83 | .base_name = TYPE_VIRTIO_BALLOON_PCI, |
84 | .generic_name = "virtio-balloon-pci" , |
85 | .transitional_name = "virtio-balloon-pci-transitional" , |
86 | .non_transitional_name = "virtio-balloon-pci-non-transitional" , |
87 | .instance_size = sizeof(VirtIOBalloonPCI), |
88 | .instance_init = virtio_balloon_pci_instance_init, |
89 | .class_init = virtio_balloon_pci_class_init, |
90 | }; |
91 | |
92 | static void virtio_balloon_pci_register(void) |
93 | { |
94 | virtio_pci_types_register(&virtio_balloon_pci_info); |
95 | } |
96 | |
97 | type_init(virtio_balloon_pci_register) |
98 | |