On Thu, Apr 29, 2021 at 05:34:27PM +0530, Shreyansh Chouhan wrote: > Signed-off-by: Shreyansh Chouhan <chouhan.shreyansh2...@gmail.com> > --- > hw/audio/virtio-snd.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/hw/audio/virtio-snd.c b/hw/audio/virtio-snd.c > index afa38adee7..edaeffd6b7 100644 > --- a/hw/audio/virtio-snd.c > +++ b/hw/audio/virtio-snd.c > @@ -54,6 +54,14 @@ static void virtio_snd_get_config(VirtIODevice *vdev, > uint8_t *config) > > static void virtio_snd_set_config(VirtIODevice *vdev, const uint8_t *config) > { > + VirtIOSound *s = VIRTIO_SOUND(vdev); > + virtio_snd_config sndcfg; > + > + memcpy(&sndcfg, config, sizeof(virtio_snd_config)); > + > + memcpy(&s->snd_conf.jacks, &sndcfg.jacks, sizeof(uint32_t)); > + memcpy(&s->snd_conf.streams, &sndcfg.streams, sizeof(uint32_t)); > + memcpy(&s->snd_conf.chmaps, &sndcfg.streams, sizeof(uint32_t));
This is static device information for the driver, the driver should not be able to change those. I think you can simply leave the set_config empty (i.e. just drop this patch). take care, Gerd