From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757857AbcLSJs5 (ORCPT ); Mon, 19 Dec 2016 04:48:57 -0500 Received: from mail-wj0-f196.google.com ([209.85.210.196]:34521 "EHLO mail-wj0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755117AbcLSJr3 (ORCPT ); Mon, 19 Dec 2016 04:47:29 -0500 From: Paolo Bonzini To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: rkrcmar@redhat.com, rkagan@virtuozzo.com, dplotnikov@virtuozzo.com Subject: [PATCH 5/6] KVM: lapic: do not set KVM_REQ_EVENT unnecessarily on PPR update Date: Mon, 19 Dec 2016 10:47:17 +0100 Message-Id: <1482140838-6303-6-git-send-email-pbonzini@redhat.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1482140838-6303-1-git-send-email-pbonzini@redhat.com> References: <1482140838-6303-1-git-send-email-pbonzini@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On PPR update, we set KVM_REQ_EVENT unconditionally anytime PPR is lowered. But we can take into account IRR here already. Signed-off-by: Paolo Bonzini --- arch/x86/kvm/lapic.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index f936644d8011..dc4ea8bdea9c 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -607,7 +607,8 @@ static void apic_update_ppr(struct kvm_lapic *apic) { u32 ppr; - if (__apic_update_ppr(apic, &ppr)) + if (__apic_update_ppr(apic, &ppr) && + apic_has_interrupt_for_ppr(apic, ppr) != -1) kvm_make_request(KVM_REQ_EVENT, apic->vcpu); } -- 1.8.3.1