Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752384AbdGaR2Y (ORCPT ); Mon, 31 Jul 2017 13:28:24 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:56784 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752337AbdGaR2V (ORCPT ); Mon, 31 Jul 2017 13:28:21 -0400 From: Marc Zyngier To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Cc: Christoffer Dall , Thomas Gleixner , Jason Cooper , Eric Auger , Shanker Donthineni , Mark Rutland , Shameerali Kolothum Thodi Subject: [PATCH v3 43/59] KVM: arm/arm64: GICv4: Unmap VLPI when freeing an LPI Date: Mon, 31 Jul 2017 18:26:21 +0100 Message-Id: <20170731172637.29355-44-marc.zyngier@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170731172637.29355-1-marc.zyngier@arm.com> References: <20170731172637.29355-1-marc.zyngier@arm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 771 Lines: 28 When freeing an LPI (on a DISCARD command, for example), we need to unmap the VLPI down to the physical ITS level. Signed-off-by: Marc Zyngier --- virt/kvm/arm/vgic/vgic-its.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c index 40aeadef33fe..79bac93d3e7d 100644 --- a/virt/kvm/arm/vgic/vgic-its.c +++ b/virt/kvm/arm/vgic/vgic-its.c @@ -623,8 +623,12 @@ static void its_free_ite(struct kvm *kvm, struct its_ite *ite) list_del(&ite->ite_list); /* This put matches the get in vgic_add_lpi. */ - if (ite->irq) + if (ite->irq) { + if (ite->irq->hw) + its_unmap_vlpi(ite->irq->host_irq); + vgic_put_irq(kvm, ite->irq); + } kfree(ite); } -- 2.11.0