1577a9180f
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
/*
|
|
* Generic vhost-user-device implementation for any vhost-user-backend
|
|
*
|
|
* This is a concrete implementation of vhost-user-base which can be
|
|
* configured via properties. It is useful for development and
|
|
* prototyping. It expects configuration details (if any) to be
|
|
* handled by the vhost-user daemon itself.
|
|
*
|
|
* Copyright (c) 2023 Linaro Ltd
|
|
* Author: Alex Bennée <alex.bennee@linaro.org>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "qapi/error.h"
|
|
#include "hw/qdev-properties.h"
|
|
#include "hw/virtio/virtio-bus.h"
|
|
#include "hw/virtio/vhost-user-base.h"
|
|
#include "qemu/error-report.h"
|
|
|
|
/*
|
|
* The following is a concrete implementation of the base class which
|
|
* allows the user to define the key parameters via the command line.
|
|
*/
|
|
|
|
static const VMStateDescription vud_vmstate = {
|
|
.name = "vhost-user-device",
|
|
.unmigratable = 1,
|
|
};
|
|
|
|
static const Property vud_properties[] = {
|
|
DEFINE_PROP_CHR("chardev", VHostUserBase, chardev),
|
|
DEFINE_PROP_UINT16("virtio-id", VHostUserBase, virtio_id, 0),
|
|
DEFINE_PROP_UINT32("vq_size", VHostUserBase, vq_size, 64),
|
|
DEFINE_PROP_UINT32("num_vqs", VHostUserBase, num_vqs, 1),
|
|
DEFINE_PROP_UINT32("config_size", VHostUserBase, config_size, 0),
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static void vud_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
|
|
/* Reason: stop inexperienced users confusing themselves */
|
|
dc->user_creatable = false;
|
|
|
|
device_class_set_props(dc, vud_properties);
|
|
dc->vmsd = &vud_vmstate;
|
|
set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
|
|
}
|
|
|
|
static const TypeInfo vud_info = {
|
|
.name = TYPE_VHOST_USER_DEVICE,
|
|
.parent = TYPE_VHOST_USER_BASE,
|
|
.class_init = vud_class_init,
|
|
};
|
|
|
|
static void vu_register_types(void)
|
|
{
|
|
type_register_static(&vud_info);
|
|
}
|
|
|
|
type_init(vu_register_types)
|