hw/arm/raspi: fix CPRMAN base address
[qemu.git] / hw / virtio / virtio-blk-pci.c
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
20 #include "hw/qdev-properties.h"
21 #include "hw/virtio/virtio-blk.h"
22 #include "virtio-pci.h"
23 #include "qapi/error.h"
24 #include "qemu/module.h"
25 #include "qom/object.h"
26
27 typedef struct VirtIOBlkPCI VirtIOBlkPCI;
28
29 /*
30 * virtio-blk-pci: This extends VirtioPCIProxy.
31 */
32 #define TYPE_VIRTIO_BLK_PCI "virtio-blk-pci-base"
33 DECLARE_INSTANCE_CHECKER(VirtIOBlkPCI, VIRTIO_BLK_PCI,
34 TYPE_VIRTIO_BLK_PCI)
35
36 struct VirtIOBlkPCI {
37 VirtIOPCIProxy parent_obj;
38 VirtIOBlock vdev;
39 };
40
41 static Property virtio_blk_pci_properties[] = {
42 DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0),
43 DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
44 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
45 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
46 DEV_NVECTORS_UNSPECIFIED),
47 DEFINE_PROP_END_OF_LIST(),
48 };
49
50 static void virtio_blk_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
51 {
52 VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(vpci_dev);
53 DeviceState *vdev = DEVICE(&dev->vdev);
54 VirtIOBlkConf *conf = &dev->vdev.conf;
55
56 if (conf->num_queues == VIRTIO_BLK_AUTO_NUM_QUEUES) {
57 conf->num_queues = virtio_pci_optimal_num_queues(0);
58 }
59
60 if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
61 vpci_dev->nvectors = conf->num_queues + 1;
62 }
63
64 qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
65 }
66
67 static void virtio_blk_pci_class_init(ObjectClass *klass, void *data)
68 {
69 DeviceClass *dc = DEVICE_CLASS(klass);
70 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
71 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
72
73 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
74 device_class_set_props(dc, virtio_blk_pci_properties);
75 k->realize = virtio_blk_pci_realize;
76 pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
77 pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BLOCK;
78 pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
79 pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI;
80 }
81
82 static void virtio_blk_pci_instance_init(Object *obj)
83 {
84 VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(obj);
85
86 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
87 TYPE_VIRTIO_BLK);
88 object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
89 "bootindex");
90 }
91
92 static const VirtioPCIDeviceTypeInfo virtio_blk_pci_info = {
93 .base_name = TYPE_VIRTIO_BLK_PCI,
94 .generic_name = "virtio-blk-pci",
95 .transitional_name = "virtio-blk-pci-transitional",
96 .non_transitional_name = "virtio-blk-pci-non-transitional",
97 .instance_size = sizeof(VirtIOBlkPCI),
98 .instance_init = virtio_blk_pci_instance_init,
99 .class_init = virtio_blk_pci_class_init,
100 };
101
102 static void virtio_blk_pci_register(void)
103 {
104 virtio_pci_types_register(&virtio_blk_pci_info);
105 }
106
107 type_init(virtio_blk_pci_register)