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ea7af5db JQ |
1 | /* |
2 | * Virtio blk 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 | * This work is licensed under the terms of the GNU GPL, version 2. See | |
12 | * the COPYING file in the top-level directory. | |
13 | * | |
14 | * Contributions after 2012-01-13 are licensed under the terms of the | |
15 | * GNU GPL, version 2 or (at your option) any later version. | |
16 | */ | |
17 | ||
18 | #include "qemu/osdep.h" | |
19 | ||
a27bd6c7 | 20 | #include "hw/qdev-properties.h" |
ea7af5db JQ |
21 | #include "hw/virtio/virtio-blk.h" |
22 | #include "virtio-pci.h" | |
23 | #include "qapi/error.h" | |
0b8fa32f | 24 | #include "qemu/module.h" |
ea7af5db JQ |
25 | |
26 | typedef struct VirtIOBlkPCI VirtIOBlkPCI; | |
27 | ||
28 | /* | |
29 | * virtio-blk-pci: This extends VirtioPCIProxy. | |
30 | */ | |
31 | #define TYPE_VIRTIO_BLK_PCI "virtio-blk-pci-base" | |
32 | #define VIRTIO_BLK_PCI(obj) \ | |
33 | OBJECT_CHECK(VirtIOBlkPCI, (obj), TYPE_VIRTIO_BLK_PCI) | |
34 | ||
35 | struct VirtIOBlkPCI { | |
36 | VirtIOPCIProxy parent_obj; | |
37 | VirtIOBlock vdev; | |
38 | }; | |
39 | ||
40 | static Property virtio_blk_pci_properties[] = { | |
41 | DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0), | |
42 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, | |
43 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), | |
44 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, | |
45 | DEV_NVECTORS_UNSPECIFIED), | |
46 | DEFINE_PROP_END_OF_LIST(), | |
47 | }; | |
48 | ||
49 | static void virtio_blk_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) | |
50 | { | |
51 | VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(vpci_dev); | |
52 | DeviceState *vdev = DEVICE(&dev->vdev); | |
53 | ||
54 | if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) { | |
55 | vpci_dev->nvectors = dev->vdev.conf.num_queues + 1; | |
56 | } | |
57 | ||
58 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); | |
59 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); | |
60 | } | |
61 | ||
62 | static void virtio_blk_pci_class_init(ObjectClass *klass, void *data) | |
63 | { | |
64 | DeviceClass *dc = DEVICE_CLASS(klass); | |
65 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
66 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
67 | ||
68 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); | |
4f67d30b | 69 | device_class_set_props(dc, virtio_blk_pci_properties); |
ea7af5db JQ |
70 | k->realize = virtio_blk_pci_realize; |
71 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
72 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BLOCK; | |
73 | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; | |
74 | pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI; | |
75 | } | |
76 | ||
77 | static void virtio_blk_pci_instance_init(Object *obj) | |
78 | { | |
79 | VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(obj); | |
80 | ||
81 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
82 | TYPE_VIRTIO_BLK); | |
83 | object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), | |
84 | "bootindex", &error_abort); | |
85 | } | |
86 | ||
87 | static const VirtioPCIDeviceTypeInfo virtio_blk_pci_info = { | |
88 | .base_name = TYPE_VIRTIO_BLK_PCI, | |
89 | .generic_name = "virtio-blk-pci", | |
90 | .transitional_name = "virtio-blk-pci-transitional", | |
91 | .non_transitional_name = "virtio-blk-pci-non-transitional", | |
92 | .instance_size = sizeof(VirtIOBlkPCI), | |
93 | .instance_init = virtio_blk_pci_instance_init, | |
94 | .class_init = virtio_blk_pci_class_init, | |
95 | }; | |
96 | ||
97 | static void virtio_blk_pci_register(void) | |
98 | { | |
99 | virtio_pci_types_register(&virtio_blk_pci_info); | |
100 | } | |
101 | ||
102 | type_init(virtio_blk_pci_register) |