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hw/virtio: add vhost-user-snd and vhost-user-snd-pci devices

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Tested with rust-vmm vhost-user-sound daemon:

    RUST_LOG=trace cargo run --bin vhost-user-sound -- --socket /tmp/snd.sock --backend null

Invocation:

    qemu-system-x86_64  \
            -qmp unix:./qmp-sock,server,wait=off  \
            -m 4096 \
            -numa node,memdev=mem \
            -object memory-backend-file,id=mem,size=4G,mem-path=/dev/shm,share=on \
            -D qemu.log \
            -d guest_errors,trace:\*snd\*,trace:\*sound\*,trace:\*vhost\* \
            -chardev socket,id=vsnd,path=/tmp/snd.sock \
            -device vhost-user-snd-pci,chardev=vsnd,id=snd \
            /path/to/disk

[AJB: imported from 54ae1cdd15.patch]

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Message-Id: <20240104210945.1223134-7-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Manos Pitsidianakis 2024-01-04 21:09:40 +00:00 • committed by Michael S. Tsirkin
parent a50616b50d
commit 4ae0fc18a1
6 changed files with 181 additions and 0 deletions
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24
include/hw/virtio/vhost-user-snd.h Normal file
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/*
* Vhost-user Sound virtio device
*
* Copyright (c) 2021 Mathieu Poirier <mathieu.poirier@linaro.org>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef QEMU_VHOST_USER_SND_H
#define QEMU_VHOST_USER_SND_H
#include "hw/virtio/virtio.h"
#include "hw/virtio/vhost.h"
#include "hw/virtio/vhost-user.h"
#include "hw/virtio/vhost-user-base.h"
#define TYPE_VHOST_USER_SND "vhost-user-snd"
OBJECT_DECLARE_SIMPLE_TYPE(VHostUserSound, VHOST_USER_SND)
struct VHostUserSound {
VHostUserBase parent_obj;
};
#endif /* QEMU_VHOST_USER_SND_H */