From patchwork Tue Sep 27 20:48:38 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 9352849 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 7E4D0600CB for ; Tue, 27 Sep 2016 20:50:28 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 713FF29200 for ; Tue, 27 Sep 2016 20:50:28 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 654EB29202; Tue, 27 Sep 2016 20:50:28 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0676E291F7 for ; Tue, 27 Sep 2016 20:50:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756646AbcI0UuA (ORCPT ); Tue, 27 Sep 2016 16:50:00 -0400 Received: from mx1.redhat.com ([209.132.183.28]:42302 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756485AbcI0Ut4 (ORCPT ); Tue, 27 Sep 2016 16:49:56 -0400 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 147E285545; Tue, 27 Sep 2016 20:49:56 +0000 (UTC) Received: from localhost.redhat.com (vpn1-5-151.ams2.redhat.com [10.36.5.151]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u8RKmhvY017556; Tue, 27 Sep 2016 16:49:50 -0400 From: Eric Auger To: eric.auger@redhat.com, eric.auger.pro@gmail.com, christoffer.dall@linaro.org, marc.zyngier@arm.com, robin.murphy@arm.com, alex.williamson@redhat.com, will.deacon@arm.com, joro@8bytes.org, tglx@linutronix.de, jason@lakedaemon.net, linux-arm-kernel@lists.infradead.org Cc: kvm@vger.kernel.org, drjones@redhat.com, linux-kernel@vger.kernel.org, Bharat.Bhushan@freescale.com, pranav.sawargaonkar@gmail.com, p.fedin@samsung.com, iommu@lists.linux-foundation.org, Jean-Philippe.Brucker@arm.com, yehuday@marvell.com, Manish.Jaggi@caviumnetworks.com Subject: [RFC 11/11] iommu/arm-smmu: Advertise IOMMU_CAP_TRANSLATE_MSI Date: Tue, 27 Sep 2016 20:48:38 +0000 Message-Id: <1475009318-2617-12-git-send-email-eric.auger@redhat.com> In-Reply-To: <1475009318-2617-1-git-send-email-eric.auger@redhat.com> References: <1475009318-2617-1-git-send-email-eric.auger@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Tue, 27 Sep 2016 20:49:56 +0000 (UTC) Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP arm-smmu and arm-smmu-v3 do translate MSI write transactions emitted by downstream devices. Advertise this property through the capable operation. Signed-off-by: Eric Auger --- drivers/iommu/arm-smmu-v3.c | 2 ++ drivers/iommu/arm-smmu.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index c86ba84..431ba8c 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -1375,6 +1375,8 @@ static bool arm_smmu_capable(enum iommu_cap cap) return false; case IOMMU_CAP_NOEXEC: return true; + case IOMMU_CAP_TRANSLATE_MSI: + return true; default: return false; } diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index 7af1dd0..b862a1c 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -1363,6 +1363,8 @@ static bool arm_smmu_capable(enum iommu_cap cap) return false; case IOMMU_CAP_NOEXEC: return true; + case IOMMU_CAP_TRANSLATE_MSI: + return true; default: return false; }