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Tsirkin" , qemu-block@nongnu.org, Eduardo Habkost , Paolo Bonzini , Mark Cave-Ayland , Viresh Kumar , virtio-fs@redhat.com, "Gonglei (Arei)" , Markus Armbruster , Jason Wang , Raphael Norwitz , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Manos Pitsidianakis Subject: [PATCH v4 5/6] hw/virtio: add vhost-user-snd and virtio-snd-pci devices Date: Mon, 9 Oct 2023 10:59:36 +0100 Message-Id: <20231009095937.195728-6-alex.bennee@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231009095937.195728-1-alex.bennee@linaro.org> References: <20231009095937.195728-1-alex.bennee@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::231; envelope-from=alex.bennee@linaro.org; helo=mail-lj1-x231.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1696845649958100001 From: Manos Pitsidianakis Tested with rust-vmm vhost-user-sound daemon: RUST_LOG=3Dtrace cargo run --bin vhost-user-sound -- --socket /tmp/snd.= sock --backend null Invocation: qemu-system-x86_64 \ -qmp unix:./qmp-sock,server,wait=3Doff \ -m 4096 \ -numa node,memdev=3Dmem \ -object memory-backend-file,id=3Dmem,size=3D4G,mem-path=3D/dev/= shm,share=3Don \ -D qemu.log \ -d guest_errors,trace:\*snd\*,trace:\*sound\*,trace:\*vhost\* \ -chardev socket,id=3Dvsnd,path=3D/tmp/snd.sock \ -device vhost-user-snd-pci,chardev=3Dvsnd,id=3Dsnd \ /path/to/disk [AJB: imported from https://github.com/epilys/qemu-virtio-snd/commit/54ae1c= dd15fef2d88e9e387a175f099a38c636f4.patch] Signed-off-by: Alex Benn=C3=A9e --- v1 - import and test --- include/hw/virtio/vhost-user-snd.h | 26 +++++++++++ hw/virtio/vhost-user-snd-pci.c | 75 ++++++++++++++++++++++++++++++ hw/virtio/vhost-user-snd.c | 67 ++++++++++++++++++++++++++ hw/virtio/Kconfig | 5 ++ hw/virtio/meson.build | 3 ++ 5 files changed, 176 insertions(+) create mode 100644 include/hw/virtio/vhost-user-snd.h create mode 100644 hw/virtio/vhost-user-snd-pci.c create mode 100644 hw/virtio/vhost-user-snd.c diff --git a/include/hw/virtio/vhost-user-snd.h b/include/hw/virtio/vhost-u= ser-snd.h new file mode 100644 index 0000000000..a1627003a0 --- /dev/null +++ b/include/hw/virtio/vhost-user-snd.h @@ -0,0 +1,26 @@ +/* + * Vhost-user Sound virtio device + * + * Copyright (c) 2021 Mathieu Poirier + * + * 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 { + /*< private >*/ + VHostUserBase parent; + /*< public >*/ +}; + +#endif /* QEMU_VHOST_USER_SND_H */ diff --git a/hw/virtio/vhost-user-snd-pci.c b/hw/virtio/vhost-user-snd-pci.c new file mode 100644 index 0000000000..d61cfdae63 --- /dev/null +++ b/hw/virtio/vhost-user-snd-pci.c @@ -0,0 +1,75 @@ +/* + * Vhost-user Sound virtio device PCI glue + * + * Copyright (c) 2023 Manos Pitsidianakis + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "qemu/osdep.h" +#include "hw/qdev-properties.h" +#include "hw/virtio/vhost-user-snd.h" +#include "hw/virtio/virtio-pci.h" + +struct VHostUserSoundPCI { + VirtIOPCIProxy parent_obj; + VHostUserSound vdev; +}; + +typedef struct VHostUserSoundPCI VHostUserSoundPCI; + +#define TYPE_VHOST_USER_SND_PCI "vhost-user-snd-pci-base" + +DECLARE_INSTANCE_CHECKER(VHostUserSoundPCI, VHOST_USER_SND_PCI, + TYPE_VHOST_USER_SND_PCI) + +static Property vhost_user_snd_pci_properties[] =3D { + DEFINE_PROP_END_OF_LIST(), +}; + +static void vhost_user_snd_pci_realize(VirtIOPCIProxy *vpci_dev, Error **e= rrp) +{ + VHostUserSoundPCI *dev =3D VHOST_USER_SND_PCI(vpci_dev); + DeviceState *vdev =3D DEVICE(&dev->vdev); + + vpci_dev->nvectors =3D 1; + + qdev_realize(vdev, BUS(&vpci_dev->bus), errp); +} + +static void vhost_user_snd_pci_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc =3D DEVICE_CLASS(klass); + VirtioPCIClass *k =3D VIRTIO_PCI_CLASS(klass); + PCIDeviceClass *pcidev_k =3D PCI_DEVICE_CLASS(klass); + k->realize =3D vhost_user_snd_pci_realize; + set_bit(DEVICE_CATEGORY_SOUND, dc->categories); + device_class_set_props(dc, vhost_user_snd_pci_properties); + pcidev_k->vendor_id =3D PCI_VENDOR_ID_REDHAT_QUMRANET; + pcidev_k->device_id =3D 0; /* Set by virtio-pci based on virtio id */ + pcidev_k->revision =3D 0x00; + pcidev_k->class_id =3D PCI_CLASS_MULTIMEDIA_AUDIO; +} + +static void vhost_user_snd_pci_instance_init(Object *obj) +{ + VHostUserSoundPCI *dev =3D VHOST_USER_SND_PCI(obj); + + virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), + TYPE_VHOST_USER_SND); +} + +static const VirtioPCIDeviceTypeInfo vhost_user_snd_pci_info =3D { + .base_name =3D TYPE_VHOST_USER_SND_PCI, + .non_transitional_name =3D "vhost-user-snd-pci", + .instance_size =3D sizeof(VHostUserSoundPCI), + .instance_init =3D vhost_user_snd_pci_instance_init, + .class_init =3D vhost_user_snd_pci_class_init, +}; + +static void vhost_user_snd_pci_register(void) +{ + virtio_pci_types_register(&vhost_user_snd_pci_info); +} + +type_init(vhost_user_snd_pci_register); diff --git a/hw/virtio/vhost-user-snd.c b/hw/virtio/vhost-user-snd.c new file mode 100644 index 0000000000..9a217543f8 --- /dev/null +++ b/hw/virtio/vhost-user-snd.c @@ -0,0 +1,67 @@ +/* + * Vhost-user snd virtio device + * + * Copyright (c) 2023 Manos Pitsidianakis + * + * Simple wrapper of the generic vhost-user-device. + * + * 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-snd.h" +#include "standard-headers/linux/virtio_ids.h" +#include "standard-headers/linux/virtio_snd.h" + +static const VMStateDescription vu_snd_vmstate =3D { + .name =3D "vhost-user-snd", + .unmigratable =3D 1, +}; + +static Property vsnd_properties[] =3D { + DEFINE_PROP_CHR("chardev", VHostUserBase, chardev), + DEFINE_PROP_END_OF_LIST(), +}; + +static void vu_snd_base_realize(DeviceState *dev, Error **errp) +{ + VHostUserBase *vub =3D VHOST_USER_BASE(dev); + VHostUserBaseClass *vubs =3D VHOST_USER_BASE_GET_CLASS(dev); + + vub->virtio_id =3D VIRTIO_ID_SOUND; + vub->num_vqs =3D 4; + vub->config_size =3D sizeof(struct virtio_snd_config); + vub->vq_size =3D 64; + + vubs->parent_realize(dev, errp); +} + +static void vu_snd_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc =3D DEVICE_CLASS(klass); + VHostUserBaseClass *vubc =3D VHOST_USER_BASE_CLASS(klass); + + dc->vmsd =3D &vu_snd_vmstate; + device_class_set_props(dc, vsnd_properties); + device_class_set_parent_realize(dc, vu_snd_base_realize, + &vubc->parent_realize); + + set_bit(DEVICE_CATEGORY_SOUND, dc->categories); +} + +static const TypeInfo vu_snd_info =3D { + .name =3D TYPE_VHOST_USER_SND, + .parent =3D TYPE_VHOST_USER_BASE, + .instance_size =3D sizeof(VHostUserSound), + .class_init =3D vu_snd_class_init, +}; + +static void vu_snd_register_types(void) +{ + type_register_static(&vu_snd_info); +} + +type_init(vu_snd_register_types) diff --git a/hw/virtio/Kconfig b/hw/virtio/Kconfig index 92c9cf6c96..aa63ff7fd4 100644 --- a/hw/virtio/Kconfig +++ b/hw/virtio/Kconfig @@ -101,6 +101,11 @@ config VHOST_VDPA_DEV default y depends on VIRTIO && VHOST_VDPA && LINUX =20 +config VHOST_USER_SND + bool + default y + depends on VIRTIO && VHOST_USER + config VHOST_USER_SCMI bool default y diff --git a/hw/virtio/meson.build b/hw/virtio/meson.build index f3e1ccc9c9..e00de61da9 100644 --- a/hw/virtio/meson.build +++ b/hw/virtio/meson.build @@ -24,6 +24,7 @@ if have_vhost system_virtio_ss.add(when: 'CONFIG_VHOST_USER_GPIO', if_true: files('v= host-user-gpio.c')) system_virtio_ss.add(when: 'CONFIG_VHOST_USER_I2C', if_true: files('vh= ost-user-i2c.c')) system_virtio_ss.add(when: 'CONFIG_VHOST_USER_RNG', if_true: files('vh= ost-user-rng.c')) + system_virtio_ss.add(when: 'CONFIG_VHOST_USER_SND', if_true: files('vh= ost-user-snd.c')) =20 # PCI Stubs system_virtio_ss.add(when: 'CONFIG_VIRTIO_PCI', if_true: files('vhost-= user-device-pci.c')) @@ -33,6 +34,8 @@ if have_vhost if_true: files('vhost-user-i2c-pci.c')) system_virtio_ss.add(when: ['CONFIG_VIRTIO_PCI', 'CONFIG_VHOST_USER_RN= G'], if_true: files('vhost-user-rng-pci.c')) + system_virtio_ss.add(when: ['CONFIG_VIRTIO_PCI', 'CONFIG_VHOST_USER_SN= D'], + if_true: files('vhost-user-snd-pci.c')) endif if have_vhost_vdpa system_virtio_ss.add(files('vhost-vdpa.c')) --=20 2.39.2