On Wed, Feb 07, 2018 at 12:01:41PM +0100, Paolo Bonzini wrote: > On 06/02/2018 21:30, Roman Kagan wrote: > > When setting up a notifier for Hyper-V event connection, attempt to use > > the KVM-assisted one first, and fall back to userspace handling of the > > hypercall if the kernel doesn't provide the requested feature. > > > > Signed-off-by: Roman Kagan <rka...@virtuozzo.com> > > As before, I wouldn't mind dropping userspace SIGNAL_EVENT altogether.
That would mean not allowing vmbus stuff on a range of otherwise usable kernels, including 4.14 which AFAIK has been declared LTS. Note that HYPERV_EVENTFD hasn't even landed in the mainline kernel yet (with any luck it'll make 4.16). > It would probably end up in bitrot. Like every compatibilty code... Thanks, Roman.
