On Fri, Jan 09, 2026 at 04:24:24PM +0100, Eugenio Pérez wrote: > Only vdpa_sim support it. Forbid this behavious as there is no use for
behaviour > it right now, we can always enable it in the future with a feature flag. > > Signed-off-by: Eugenio Pérez <[email protected]> > --- > drivers/vhost/vdpa.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c > index 9d25b735b43d..3f0184d42075 100644 > --- a/drivers/vhost/vdpa.c > +++ b/drivers/vhost/vdpa.c > @@ -682,6 +682,8 @@ static long vhost_vdpa_vring_ioctl(struct vhost_vdpa *v, > unsigned int cmd, > return -EFAULT; > if (idx >= vdpa->ngroups || s.num >= vdpa->nas) > return -EINVAL; > + if (ops->get_status(vdpa) & VIRTIO_CONFIG_S_DRIVER_OK) > + return -EBUSY; > if (!ops->set_group_asid) > return -EOPNOTSUPP; > return ops->set_group_asid(vdpa, idx, s.num); > -- > 2.52.0
