Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752631AbdF1PGm (ORCPT ); Wed, 28 Jun 2017 11:06:42 -0400 Received: from foss.arm.com ([217.140.101.70]:43676 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751560AbdF1PFx (ORCPT ); Wed, 28 Jun 2017 11:05:53 -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 41/52] KVM: arm/arm64: GICv4: Unmap VLPI when freeing an LPI Date: Wed, 28 Jun 2017 16:04:00 +0100 Message-Id: <20170628150411.15846-42-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: 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 255d29837514..ed52b94e8e6d 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