From patchwork Sat Feb 6 03:35:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jon Derrick X-Patchwork-Id: 12071873 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=-16.7 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 237BFC433E6 for ; Sat, 6 Feb 2021 03:38:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E5C8364DFA for ; Sat, 6 Feb 2021 03:38:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231126AbhBFDiN (ORCPT ); Fri, 5 Feb 2021 22:38:13 -0500 Received: from mga03.intel.com ([134.134.136.65]:16483 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231610AbhBFDfy (ORCPT ); Fri, 5 Feb 2021 22:35:54 -0500 IronPort-SDR: gQdNPXlTGALyevfEKaMRI3EwSJeBcm6ZH0xFTGFcXqkSoDpGa1rDE1mOxOhZJ+Ghk7IAyZHwxM zYGbMjV3MWJw== X-IronPort-AV: E=McAfee;i="6000,8403,9886"; a="181581383" X-IronPort-AV: E=Sophos;i="5.81,156,1610438400"; d="scan'208";a="181581383" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Feb 2021 19:35:11 -0800 IronPort-SDR: 0qE1iklm5499/PHoudltYrlZb4ao/ad9XsB/5jIWStBtflQTvNvopNwjnl5WaWaU4aiwohds40 8DfAksmlpIfg== X-IronPort-AV: E=Sophos;i="5.81,156,1610438400"; d="scan'208";a="576921853" Received: from rgrover1-mobl.amr.corp.intel.com (HELO jderrick-mobl.amr.corp.intel.com) ([10.209.102.94]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Feb 2021 19:35:12 -0800 From: Jon Derrick To: , Cc: Bjorn Helgaas , Lorenzo Pieralisi , Lu Baolu , Joerg Roedel , Nirmal Patel , Kapil Karkra , Jon Derrick , Joerg Roedel Subject: [PATCH v3 1/2] iommu/vt-d: Use Real PCI DMA device for IRTE Date: Fri, 5 Feb 2021 20:35:01 -0700 Message-Id: <20210206033502.103964-2-jonathan.derrick@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210206033502.103964-1-jonathan.derrick@intel.com> References: <20210206033502.103964-1-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);