From patchwork Wed Feb 10 16:13:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jon Derrick X-Patchwork-Id: 12081127 X-Patchwork-Delegate: lorenzo.pieralisi@arm.com Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 37CDCC433DB for ; Wed, 10 Feb 2021 16:14:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E450064E8B for ; Wed, 10 Feb 2021 16:14:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231868AbhBJQOJ (ORCPT ); Wed, 10 Feb 2021 11:14:09 -0500 Received: from mga04.intel.com ([192.55.52.120]:47936 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231950AbhBJQOI (ORCPT ); Wed, 10 Feb 2021 11:14:08 -0500 IronPort-SDR: S5QfhXyLxX2e4awa4FORuiEQstWwaTNJbzwCnyc5GFLjxQoXnd01zCv6jeMfl6A/kp+6L8rVNb aYFC/PnLzfAw== X-IronPort-AV: E=McAfee;i="6000,8403,9891"; a="179543646" X-IronPort-AV: E=Sophos;i="5.81,168,1610438400"; d="scan'208";a="179543646" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Feb 2021 08:13:27 -0800 IronPort-SDR: XgVnhs5fdnTJX83avyKPOc4F7/T5wk5386OP+5Ao2+yUj/+dd9JFMfxg0R4fpTj56Wi4exlAWU bfgil4wA/pjQ== X-IronPort-AV: E=Sophos;i="5.81,168,1610438400"; d="scan'208";a="380191376" Received: from mjyalung-mobl.amr.corp.intel.com (HELO jderrick-mobl.amr.corp.intel.com) ([10.209.178.245]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Feb 2021 08:13:26 -0800 From: Jon Derrick To: , Cc: Bjorn Helgaas , Lorenzo Pieralisi , Lu Baolu , Joerg Roedel , Nirmal Patel , Kapil Karkra , Krzysztof Wilczynski , Jon Derrick , Joerg Roedel Subject: [PATCH v4 1/2] iommu/vt-d: Use Real PCI DMA device for IRTE Date: Wed, 10 Feb 2021 09:13:14 -0700 Message-Id: <20210210161315.316097-2-jonathan.derrick@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210210161315.316097-1-jonathan.derrick@intel.com> References: <20210210161315.316097-1-jonathan.derrick@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org VMD retransmits child device MSI-X with the VMD endpoint's requester-id. In order to support direct interrupt remapping of VMD child devices, ensure that the IRTE is programmed with the VMD endpoint's requester-id using pci_real_dma_dev(). Acked-by: Lu Baolu Acked-by: Joerg Roedel Signed-off-by: Jon Derrick --- drivers/iommu/intel/irq_remapping.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/intel/irq_remapping.c b/drivers/iommu/intel/irq_remapping.c index 685200a5cff0..1939e070eec8 100644 --- a/drivers/iommu/intel/irq_remapping.c +++ b/drivers/iommu/intel/irq_remapping.c @@ -1276,7 +1276,8 @@ static void intel_irq_remapping_prepare_irte(struct intel_ir_data *data, break; case X86_IRQ_ALLOC_TYPE_PCI_MSI: case X86_IRQ_ALLOC_TYPE_PCI_MSIX: - set_msi_sid(irte, msi_desc_to_pci_dev(info->desc)); + set_msi_sid(irte, + pci_real_dma_dev(msi_desc_to_pci_dev(info->desc))); break; default: BUG_ON(1);