On Thu, Mar 22, 2018 at 5:01 PM, Liran Alon <liran.alon@xxxxxxxxxx> wrote: > When vCPU runs L2 and there is a pending event that requires to exit > from L2 to L1 and nested_run_pending=1, vcpu_enter_guest() will request > an immediate-exit from L2 (See req_immediate_exit). > > Since now handling of req_immediate_exit also makes sure to set > KVM_REQ_EVENT, there is no need to also set it on vmx_vcpu_run() when > nested_run_pending=1. > > This optimizes cases where VMRESUME was executed by L1 to enter L2 and > there is no pending events that require exit from L2 to L1. Previously, > this would have set KVM_REQ_EVENT unnecessarly. > > Signed-off-by: Liran Alon <liran.alon@xxxxxxxxxx> > Reviewed-by: Nikita Leshenko <nikita.leshchenko@xxxxxxxxxx> > Reviewed-by: Krish Sadhukhan <krish.sadhukhan@xxxxxxxxxx> > Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> Reviewed-by: Jim Mattson <jmattson@xxxxxxxxxx>
