4ae0fc18a1
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>
76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/*
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* Vhost-user Sound virtio device PCI glue
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*
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* Copyright (c) 2023 Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
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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 "hw/qdev-properties.h"
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#include "hw/virtio/vhost-user-snd.h"
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#include "hw/virtio/virtio-pci.h"
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struct VHostUserSoundPCI {
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VirtIOPCIProxy parent_obj;
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VHostUserSound vdev;
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};
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typedef struct VHostUserSoundPCI VHostUserSoundPCI;
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#define TYPE_VHOST_USER_SND_PCI "vhost-user-snd-pci-base"
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DECLARE_INSTANCE_CHECKER(VHostUserSoundPCI, VHOST_USER_SND_PCI,
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TYPE_VHOST_USER_SND_PCI)
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static Property vhost_user_snd_pci_properties[] = {
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DEFINE_PROP_END_OF_LIST(),
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};
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static void vhost_user_snd_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
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{
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VHostUserSoundPCI *dev = VHOST_USER_SND_PCI(vpci_dev);
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DeviceState *vdev = DEVICE(&dev->vdev);
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vpci_dev->nvectors = 1;
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qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
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}
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static void vhost_user_snd_pci_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
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PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
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k->realize = vhost_user_snd_pci_realize;
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set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
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device_class_set_props(dc, vhost_user_snd_pci_properties);
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pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
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pcidev_k->device_id = 0; /* Set by virtio-pci based on virtio id */
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pcidev_k->revision = 0x00;
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pcidev_k->class_id = PCI_CLASS_MULTIMEDIA_AUDIO;
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}
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static void vhost_user_snd_pci_instance_init(Object *obj)
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{
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VHostUserSoundPCI *dev = VHOST_USER_SND_PCI(obj);
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virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
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TYPE_VHOST_USER_SND);
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}
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static const VirtioPCIDeviceTypeInfo vhost_user_snd_pci_info = {
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.base_name = TYPE_VHOST_USER_SND_PCI,
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.non_transitional_name = "vhost-user-snd-pci",
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.instance_size = sizeof(VHostUserSoundPCI),
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.instance_init = vhost_user_snd_pci_instance_init,
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.class_init = vhost_user_snd_pci_class_init,
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};
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static void vhost_user_snd_pci_register(void)
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{
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virtio_pci_types_register(&vhost_user_snd_pci_info);
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}
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type_init(vhost_user_snd_pci_register);
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