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
