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233412bf7a
Now we can take advantage of our new base class and make vhost-user-rng a much simpler boilerplate wrapper. Also as this doesn't require any target specific hacks we only need to build the stubs once. Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20240104210945.1223134-4-alex.bennee@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
/*
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* Vhost-user RNG virtio device
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*
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* Copyright (c) 2021 Mathieu Poirier <mathieu.poirier@linaro.org>
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*
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* Simple wrapper of the generic vhost-user-device.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "hw/qdev-properties.h"
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#include "hw/virtio/virtio-bus.h"
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#include "hw/virtio/vhost-user-rng.h"
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#include "standard-headers/linux/virtio_ids.h"
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static const VMStateDescription vu_rng_vmstate = {
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.name = "vhost-user-rng",
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.unmigratable = 1,
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};
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static Property vrng_properties[] = {
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DEFINE_PROP_CHR("chardev", VHostUserBase, chardev),
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DEFINE_PROP_END_OF_LIST(),
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};
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static void vu_rng_base_realize(DeviceState *dev, Error **errp)
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{
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VHostUserBase *vub = VHOST_USER_BASE(dev);
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VHostUserBaseClass *vubs = VHOST_USER_BASE_GET_CLASS(dev);
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/* Fixed for RNG */
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vub->virtio_id = VIRTIO_ID_RNG;
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vub->num_vqs = 1;
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vub->vq_size = 4;
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vubs->parent_realize(dev, errp);
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}
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static void vu_rng_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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VHostUserBaseClass *vubc = VHOST_USER_BASE_CLASS(klass);
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dc->vmsd = &vu_rng_vmstate;
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device_class_set_props(dc, vrng_properties);
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device_class_set_parent_realize(dc, vu_rng_base_realize,
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&vubc->parent_realize);
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set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
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}
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static const TypeInfo vu_rng_info = {
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.name = TYPE_VHOST_USER_RNG,
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.parent = TYPE_VHOST_USER_BASE,
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.instance_size = sizeof(VHostUserRNG),
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.class_init = vu_rng_class_init,
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};
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static void vu_rng_register_types(void)
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{
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type_register_static(&vu_rng_info);
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}
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type_init(vu_rng_register_types)
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