Change Details

The vcpu_rendezvous_pending function doesn't check if the vcpu is taken part in the rendezvous. So, a vcpu which doesn't take part in the rendezvous tries to enter the rendezvous too. This causes a race. The rendezvous could be done before the vcpu was able to enter it. PR: 267779

A vcpu only checks if a rendezvous is ongoing or not to decide if it should handle a rendezvous. This could lead to spurios rendezvous where a vcpu tries a handle a rendezvous it isn't part of. This situation is properly handled by `vm_handle_rendezvous` but it could potentially degrade the performance. Avoid that an early check if the vcpu is part of the rendezvous or not.

The vcpu_A vcpu only checks if a rendezvous_pend is ongoing function doesn't checkor not to decide if the vcpu is taken part in theit should handle a rendezvous. So, a vcpu which doesn't take part in the rendezvousThis could lead to spurios rendezvous where a vcpu tries to enter thea handle a rendezvous toos it isn't part of. This causes a racesituation is properly handled by `vm_handle_rendezvous` but it could potentially degrade the performance. The rendezvous could be done beforeAvoid that an early check if the vcpu was able to enter it. PR: 267779is part of the rendezvous or not.