From patchwork Tue Jan 8 10:26:25 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 10751797 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id ACFF51399 for ; Tue, 8 Jan 2019 10:28:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9997F28BC4 for ; Tue, 8 Jan 2019 10:28:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8C45C28BDE; Tue, 8 Jan 2019 10:28:29 +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=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, 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 34DA028BC4 for ; Tue, 8 Jan 2019 10:28:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728844AbfAHK2S (ORCPT ); Tue, 8 Jan 2019 05:28:18 -0500 Received: from mx1.redhat.com ([209.132.183.28]:55664 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728833AbfAHK2R (ORCPT ); Tue, 8 Jan 2019 05:28:17 -0500 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 76FBA3E2CC; Tue, 8 Jan 2019 10:28:16 +0000 (UTC) Received: from laptop.redhat.com (ovpn-116-249.ams2.redhat.com [10.36.116.249]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4C490601A3; Tue, 8 Jan 2019 10:28:12 +0000 (UTC) From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, joro@8bytes.org, alex.williamson@redhat.com, jacob.jun.pan@linux.intel.com, yi.l.liu@linux.intel.com, jean-philippe.brucker@arm.com, will.deacon@arm.com, robin.murphy@arm.com Cc: kevin.tian@intel.com, ashok.raj@intel.com, marc.zyngier@arm.com, christoffer.dall@arm.com, peter.maydell@linaro.org Subject: [RFC v3 13/21] iommu/smmuv3: Implement bind_guest_msi Date: Tue, 8 Jan 2019 11:26:25 +0100 Message-Id: <20190108102633.17482-14-eric.auger@redhat.com> In-Reply-To: <20190108102633.17482-1-eric.auger@redhat.com> References: <20190108102633.17482-1-eric.auger@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Tue, 08 Jan 2019 10:28:16 +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 The bind_guest_msi() callback checks the domain is NESTED and redirect to the dma-iommu implementation. Signed-off-by: Eric Auger --- drivers/iommu/arm-smmu-v3.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index ca72e0ce92f6..999ee470a2ae 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -2226,6 +2226,28 @@ static void arm_smmu_put_resv_regions(struct device *dev, kfree(entry); } +static int arm_smmu_bind_guest_msi(struct iommu_domain *domain, + struct device *dev, + struct iommu_guest_msi_binding *binding) +{ + struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain); + struct arm_smmu_device *smmu; + int ret = -EINVAL; + + mutex_lock(&smmu_domain->init_mutex); + smmu = smmu_domain->smmu; + if (!smmu) + goto out; + + if (smmu_domain->stage != ARM_SMMU_DOMAIN_NESTED) + goto out; + + ret = iommu_dma_bind_doorbell(domain, dev, binding); +out: + mutex_unlock(&smmu_domain->init_mutex); + return ret; +} + static int arm_smmu_set_pasid_table(struct iommu_domain *domain, struct iommu_pasid_table_config *cfg) { @@ -2352,6 +2374,7 @@ static struct iommu_ops arm_smmu_ops = { .put_resv_regions = arm_smmu_put_resv_regions, .set_pasid_table = arm_smmu_set_pasid_table, .cache_invalidate = arm_smmu_cache_invalidate, + .bind_guest_msi = arm_smmu_bind_guest_msi, .pgsize_bitmap = -1UL, /* Restricted during device attach */ };