Re: [RFC][PATCH] kvm: add suspend pm-notifier

[Paolo Bonzini]

On 04/06/21 09:21, Vitaly Kuznetsov wrote:
> >   
> >   	preempt_notifier_inc();
> > +	kvm_init_pm_notifier(kvm);
> >   
> You've probably thought it through and I didn't but wouldn't it be
> easier to have one global pm_notifier call for KVM which would go
> through the list of VMs instead of registering/deregistering a
> pm_notifier call for every created/destroyed VM?

That raises questions on the locking, i.e. if we can we take the 
kvm_lock safely from the notifier.

Paolo