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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
27typedef struct VirtIOBlkPCI VirtIOBlkPCI;
28
29
30
31
32#define TYPE_VIRTIO_BLK_PCI "virtio-blk-pci-base"
33DECLARE_INSTANCE_CHECKER(VirtIOBlkPCI, VIRTIO_BLK_PCI,
34 TYPE_VIRTIO_BLK_PCI)
35
36struct VirtIOBlkPCI {
37 VirtIOPCIProxy parent_obj;
38 VirtIOBlock vdev;
39};
40
41static 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
50static 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
67static 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
82static 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
92static 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
102static void virtio_blk_pci_register(void)
103{
104 virtio_pci_types_register(&virtio_blk_pci_info);
105}
106
107type_init(virtio_blk_pci_register)
108