From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752657AbdJ0OdS (ORCPT ); Fri, 27 Oct 2017 10:33:18 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:59878 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752311AbdJ0OaA (ORCPT ); Fri, 27 Oct 2017 10:30:00 -0400 From: Marc Zyngier To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Christoffer Dall , Eric Auger , Shanker Donthineni , Mark Rutland , Shameerali Kolothum Thodi , Andre Przywara , Christoffer Dall Subject: [PATCH v5 18/26] KVM: arm/arm64: GICv4: Use pending_last as a scheduling hint Date: Fri, 27 Oct 2017 15:28:47 +0100 Message-Id: <20171027142855.21584-19-marc.zyngier@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20171027142855.21584-1-marc.zyngier@arm.com> References: <20171027142855.21584-1-marc.zyngier@arm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When a vPE exits, the pending_last flag is set when there are pending VLPIs stored in the pending table. Similarily, we set this flag when a doorbell interrupt fires, as it indicates the same condition. Let's update kvm_vgic_vcpu_pending_irq() to account for that flag as well, making a vcpu runnable when set. Acked-by: Christoffer Dall Signed-off-by: Marc Zyngier --- virt/kvm/arm/vgic/vgic.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/virt/kvm/arm/vgic/vgic.c b/virt/kvm/arm/vgic/vgic.c index 9d557efd1f7d..0691a2250949 100644 --- a/virt/kvm/arm/vgic/vgic.c +++ b/virt/kvm/arm/vgic/vgic.c @@ -769,6 +769,9 @@ int kvm_vgic_vcpu_pending_irq(struct kvm_vcpu *vcpu) if (!vcpu->kvm->arch.vgic.enabled) return false; + if (vcpu->arch.vgic_cpu.vgic_v3.its_vpe.pending_last) + return true; + spin_lock(&vgic_cpu->ap_list_lock); list_for_each_entry(irq, &vgic_cpu->ap_list_head, ap_list) { -- 2.11.0