1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
/*
* Vhost Vdpa Device PCI Bindings
*
* Copyright (c) Huawei Technologies Co., Ltd. 2022. All Rights Reserved.
*
* Authors:
* Longpeng <longpeng2@huawei.com>
*
* Largely based on the "vhost-user-blk-pci.c" and "vhost-user-blk.c"
* implemented by:
* Changpeng Liu <changpeng.liu@intel.com>
*
* This work is licensed under the terms of the GNU LGPL, version 2 or later.
* See the COPYING.LIB file in the top-level directory.
*/
#include "qemu/osdep.h"
#include <sys/ioctl.h>
#include <linux/vhost.h>
#include "hw/virtio/virtio.h"
#include "hw/virtio/vdpa-dev.h"
#include "hw/pci/pci.h"
#include "hw/qdev-properties.h"
#include "qapi/error.h"
#include "qemu/error-report.h"
#include "qemu/module.h"
#include "hw/virtio/virtio-pci.h"
#include "qom/object.h"
typedef struct VhostVdpaDevicePCI VhostVdpaDevicePCI;
#define TYPE_VHOST_VDPA_DEVICE_PCI "vhost-vdpa-device-pci-base"
DECLARE_INSTANCE_CHECKER(VhostVdpaDevicePCI, VHOST_VDPA_DEVICE_PCI,
TYPE_VHOST_VDPA_DEVICE_PCI)
struct VhostVdpaDevicePCI {
VirtIOPCIProxy parent_obj;
VhostVdpaDevice vdev;
};
static void vhost_vdpa_device_pci_instance_init(Object *obj)
{
VhostVdpaDevicePCI *dev = VHOST_VDPA_DEVICE_PCI(obj);
virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
TYPE_VHOST_VDPA_DEVICE);
object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
"bootindex");
}
static Property vhost_vdpa_device_pci_properties[] = {
DEFINE_PROP_END_OF_LIST(),
};
static int vhost_vdpa_device_pci_post_init(VhostVdpaDevice *v, Error **errp)
{
VhostVdpaDevicePCI *dev = container_of(v, VhostVdpaDevicePCI, vdev);
VirtIOPCIProxy *vpci_dev = &dev->parent_obj;
vpci_dev->class_code = virtio_pci_get_class_id(v->vdev_id);
vpci_dev->trans_devid = virtio_pci_get_trans_devid(v->vdev_id);
/* one for config vector */
vpci_dev->nvectors = v->num_queues + 1;
return 0;
}
static void
vhost_vdpa_device_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
{
VhostVdpaDevicePCI *dev = VHOST_VDPA_DEVICE_PCI(vpci_dev);
dev->vdev.post_init = vhost_vdpa_device_pci_post_init;
qdev_realize(DEVICE(&dev->vdev), BUS(&vpci_dev->bus), errp);
}
static void vhost_vdpa_device_pci_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
set_bit(DEVICE_CATEGORY_MISC, dc->categories);
device_class_set_props(dc, vhost_vdpa_device_pci_properties);
k->realize = vhost_vdpa_device_pci_realize;
}
static const VirtioPCIDeviceTypeInfo vhost_vdpa_device_pci_info = {
.base_name = TYPE_VHOST_VDPA_DEVICE_PCI,
.generic_name = "vhost-vdpa-device-pci",
.transitional_name = "vhost-vdpa-device-pci-transitional",
.non_transitional_name = "vhost-vdpa-device-pci-non-transitional",
.instance_size = sizeof(VhostVdpaDevicePCI),
.instance_init = vhost_vdpa_device_pci_instance_init,
.class_init = vhost_vdpa_device_pci_class_init,
};
static void vhost_vdpa_device_pci_register(void)
{
virtio_pci_types_register(&vhost_vdpa_device_pci_info);
}
type_init(vhost_vdpa_device_pci_register);
|
