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Commit 041b1359 authored by Marcelo Tosatti's avatar Marcelo Tosatti Committed by Avi Kivity
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KVM: x86: document KVM_REQ_PENDING_TIMER usage 



Document that KVM_REQ_PENDING_TIMER is implicitly used during guest
entry.

Signed-off-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent de3e6480

arch/x86/kvm/timer.c

+2 −1
Original line number Diff line number Diff line
@@ -12,7 +12,8 @@ static int __kvm_timer_fn(struct kvm_vcpu *vcpu, struct kvm_timer *ktimer) 
	/*

	 * There is a race window between reading and incrementing, but we do

	 * not care about potentially loosing timer events in the !reinject

	 * case anyway.

	 * case anyway. Note: KVM_REQ_PENDING_TIMER is implicitly checked

	 * in vcpu_enter_guest.

	 */

	if (ktimer->reinject || !atomic_read(&ktimer->pending)) {

		atomic_inc(&ktimer->pending);