On Mon, Dec 7, 2020 at 5:19 PM Stefan Hajnoczi <stefanha@xxxxxxxxx> wrote: > > On Fri, Nov 20, 2020 at 07:50:40PM +0100, Eugenio Pérez wrote: > > This allows code to reuse the logic to not to re-enable or re-disable > > migration mechanisms. Code works the same way as before. > > > > Signed-off-by: Eugenio Pérez <eperezma@xxxxxxxxxx> > > --- > > hw/virtio/vhost.c | 12 +++++++----- > > 1 file changed, 7 insertions(+), 5 deletions(-) > > > > diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c > > index 2bd8cdf893..2adb2718c1 100644 > > --- a/hw/virtio/vhost.c > > +++ b/hw/virtio/vhost.c > > @@ -862,7 +862,9 @@ err_features: > > return r; > > } > > > > -static int vhost_migration_log(MemoryListener *listener, bool enable) > > +static int vhost_migration_log(MemoryListener *listener, > > + bool enable, > > + int (*device_cb)(struct vhost_dev *, bool)) > > Please document the argument. What is the callback function supposed to > do ("device_cb" is not descriptive so I'm not sure)? Sure, I will expand documentation if we stick with this approach to enable/disable the shadow virtqueue (I hope we agree on a better one anyway). Just for completion, it was meant for vhost_dev_set_log, so vhost_dev* is the device to enable/disable migration, and the second bool is for enable/disable it. Thanks!