On Wed, Apr 13, 2022 at 08:39:52AM -0300, Jason Gunthorpe wrote: > I already looked into that for a while, it is a real mess too because > of how the notifiers are used by the current drivers, eg gvt assumes > the notifier is called during its open_device callback to setup its > kvm. gvt very much expects kvm to be set before open and thus get the cachup notifier, yes. And given that this is how qemu uses the ioctl I think we can actually simplify this further and require vfio_group_set_kvm to be called before open for s390/ap as well and do away with this whole mess. > For this series I prefer to leave it alone Ok, let's do it one step at a time.
