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Add virtio-sound-pci device

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This patch adds a PCI wrapper device for the virtio-sound device.
It is necessary to instantiate a virtio-snd device in a guest.
All sound logic will be added to the virtio-snd device in the following
commits.

To add this device with a guest, you'll need a >=5.13 kernel compiled
with CONFIG_SND_VIRTIO=y, which at the time of writing most distros have
off by default.

Use with following flags in the invocation:

Pulseaudio:
  -audio driver=pa,model=virtio
  or
  -audio driver=pa,model=virtio,server=/run/user/1000/pulse/native
sdl:
  -audio driver=sdl,model=virtio
coreaudio (macos/darwin):
  -audio driver=coreaudio,model=virtio
etc.

Based-on: 5a2f350eec
Signed-off-by: Igor Skalkin <Igor.Skalkin@opensynergy.com>
Signed-off-by: Anton Yakovlev <Anton.Yakovlev@opensynergy.com>
Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <b223598d59f56ead6a6d8d9bb6801e17489ddaa4.1698062525.git.manos.pitsidianakis@linaro.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Manos Pitsidianakis 2023-10-23 15:03:19 +03:00 • committed by Michael S. Tsirkin
parent 2880e676c0
commit 2426908590
4 changed files with 96 additions and 0 deletions
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1
hw/audio/meson.build
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@ -14,3 +14,4 @@ system_ss.add(when: 'CONFIG_SB16', if_true: files('sb16.c'))
system_ss.add(when: 'CONFIG_VT82C686', if_true: files('via-ac97.c'))
system_ss.add(when: 'CONFIG_WM8750', if_true: files('wm8750.c'))
system_ss.add(when: ['CONFIG_VIRTIO_SND', 'CONFIG_VIRTIO'], if_true: files('virtio-snd.c'))
system_ss.add(when: ['CONFIG_VIRTIO_SND', 'CONFIG_VIRTIO', 'CONFIG_VIRTIO_PCI'], if_true: files('virtio-snd-pci.c'))