Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751463AbdH1SSL (ORCPT ); Mon, 28 Aug 2017 14:18:11 -0400 Received: from mail-wm0-f46.google.com ([74.125.82.46]:34883 "EHLO mail-wm0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751221AbdH1SSH (ORCPT ); Mon, 28 Aug 2017 14:18:07 -0400 Date: Mon, 28 Aug 2017 20:18:04 +0200 From: Christoffer Dall To: Marc Zyngier Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, Christoffer Dall , Thomas Gleixner , Jason Cooper , Eric Auger , Shanker Donthineni , Mark Rutland , Shameerali Kolothum Thodi Subject: Re: [PATCH v3 42/59] KVM: arm/arm64: GICv4: Handle INT command applied to a VLPI Message-ID: <20170828181804.GB24649@cbox> References: <20170731172637.29355-1-marc.zyngier@arm.com> <20170731172637.29355-43-marc.zyngier@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170731172637.29355-43-marc.zyngier@arm.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1061 Lines: 34 On Mon, Jul 31, 2017 at 06:26:20PM +0100, Marc Zyngier wrote: > If the guest issues an INT command targetting a VLPI, let's > call into the irq_set_irqchip_state() helper to make it pending > on the physical side. > > This works just as well if userspace decides to inject an interrupt > using the normal userspace API... > > Signed-off-by: Marc Zyngier Acked-by: Christoffer Dall > --- > virt/kvm/arm/vgic/vgic-its.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c > index a2217f53bbe5..40aeadef33fe 100644 > --- a/virt/kvm/arm/vgic/vgic-its.c > +++ b/virt/kvm/arm/vgic/vgic-its.c > @@ -573,6 +573,10 @@ static int vgic_its_trigger_msi(struct kvm *kvm, struct vgic_its *its, > if (err) > return err; > > + if (irq->hw) > + return irq_set_irqchip_state(irq->host_irq, > + IRQCHIP_STATE_PENDING, true); > + > spin_lock(&irq->irq_lock); > irq->pending_latch = true; > vgic_queue_irq_unlock(kvm, irq); > -- > 2.11.0 >