Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752682AbdF1PJr (ORCPT ); Wed, 28 Jun 2017 11:09:47 -0400 Received: from foss.arm.com ([217.140.101.70]:43878 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752040AbdF1PGF (ORCPT ); Wed, 28 Jun 2017 11:06:05 -0400 From: Marc Zyngier To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu Cc: Christoffer Dall , Thomas Gleixner , Jason Cooper , Eric Auger , Shanker Donthineni , Mark Rutland Subject: [PATCH v2 51/52] KVM: arm/arm64: GICv4: Use pending_last as a scheduling hint Date: Wed, 28 Jun 2017 16:04:10 +0100 Message-Id: <20170628150411.15846-52-marc.zyngier@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170628150411.15846-1-marc.zyngier@arm.com> References: <20170628150411.15846-1-marc.zyngier@arm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 920 Lines: 29 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. 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 2106e4c06a12..9ab52108989d 100644 --- a/virt/kvm/arm/vgic/vgic.c +++ b/virt/kvm/arm/vgic/vgic.c @@ -785,6 +785,9 @@ 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