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[2620:137:e000::3:7]) by mx.google.com with ESMTPS id h16-20020a17090ac39000b0026f9b5fe711si10877931pjt.108.2023.10.24.08.34.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Oct 2023 08:34:56 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) client-ip=2620:137:e000::3:7; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b="U8/XyhXS"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by snail.vger.email (Postfix) with ESMTP id CFC89802C698; Tue, 24 Oct 2023 08:34:55 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at snail.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343802AbjJXPeu (ORCPT + 27 others); Tue, 24 Oct 2023 11:34:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39474 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234931AbjJXPep (ORCPT ); Tue, 24 Oct 2023 11:34:45 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 57E831FCB; Tue, 24 Oct 2023 08:25:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1698161146; x=1729697146; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=HxxDxm+pmr+CG9d+qPDASdBIZigfxNwo47Fkj5u+VjE=; b=U8/XyhXSMDHlz9avuLIpfC/0Tfq7DO9/PustChdZxkudDit69FbYnzcx 8Jb72EI9L5+pFW5C9qKiDpQPX3SUY1+E5haTp6MtCfFHBfq+MAKrhdKLH PZdP6gML/U6UjLCEKxWTbXTbEd2LGh6UhJuRl2R6uZ2rr3vMRBmtGdK9S fyf6o9areE3d/tViQZwwURb72Y8Y2ZrN5x8wwBUjis+r4ch7JVYLH25za t5+NoFzJuYNmcWwa1jW5D/r2SqhFBen78QBdA894eqZsEDFHOKcKb5oof SfPBUvsbBLRAVnK27r/KZ1WmdDirQ3XWTXANjbW2VZ5CV6szIAphh5cBm A==; X-IronPort-AV: E=McAfee;i="6600,9927,10873"; a="418212082" X-IronPort-AV: E=Sophos;i="6.03,248,1694761200"; d="scan'208";a="418212082" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Oct 2023 08:14:14 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10873"; a="1005688893" X-IronPort-AV: E=Sophos;i="6.03,248,1694761200"; d="scan'208";a="1005688893" Received: from 984fee00a4c6.jf.intel.com ([10.165.58.231]) by fmsmga006.fm.intel.com with ESMTP; 24 Oct 2023 08:14:13 -0700 From: Yi Liu To: joro@8bytes.org, alex.williamson@redhat.com, jgg@nvidia.com, kevin.tian@intel.com, robin.murphy@arm.com, baolu.lu@linux.intel.com Cc: cohuck@redhat.com, eric.auger@redhat.com, nicolinc@nvidia.com, kvm@vger.kernel.org, mjrosato@linux.ibm.com, chao.p.peng@linux.intel.com, yi.l.liu@intel.com, yi.y.sun@linux.intel.com, peterx@redhat.com, jasowang@redhat.com, shameerali.kolothum.thodi@huawei.com, lulu@redhat.com, suravee.suthikulpanit@amd.com, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, zhenzhong.duan@intel.com, joao.m.martins@oracle.com Subject: [PATCH v7 1/8] iommufd: Add data structure for Intel VT-d stage-1 domain allocation Date: Tue, 24 Oct 2023 08:14:05 -0700 Message-Id: <20231024151412.50046-2-yi.l.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231024151412.50046-1-yi.l.liu@intel.com> References: <20231024151412.50046-1-yi.l.liu@intel.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL, SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Tue, 24 Oct 2023 08:34:55 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1780651599219454654 X-GMAIL-MSGID: 1780651599219454654 This adds IOMMU_HWPT_DATA_VTD_S1 for stage-1 hw_pagetable of Intel VT-d and the corressponding data structure for userspace specified parameter for the domain allocation. Reviewed-by: Kevin Tian Signed-off-by: Yi Liu --- include/uapi/linux/iommufd.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/include/uapi/linux/iommufd.h b/include/uapi/linux/iommufd.h index aa9282ebbc7e..3a66d3888393 100644 --- a/include/uapi/linux/iommufd.h +++ b/include/uapi/linux/iommufd.h @@ -362,12 +362,42 @@ enum iommufd_hwpt_alloc_flags { IOMMU_HWPT_ALLOC_DIRTY_TRACKING = 1 << 1, }; +/** + * enum iommu_hwpt_vtd_s1_flags - Intel VT-d stage-1 page table + * entry attributes + * @IOMMU_VTD_S1_SRE: Supervisor request + * @IOMMU_VTD_S1_EAFE: Extended access enable + * @IOMMU_VTD_S1_WPE: Write protect enable + */ +enum iommu_hwpt_vtd_s1_flags { + IOMMU_VTD_S1_SRE = 1 << 0, + IOMMU_VTD_S1_EAFE = 1 << 1, + IOMMU_VTD_S1_WPE = 1 << 2, +}; + +/** + * struct iommu_hwpt_vtd_s1 - Intel VT-d stage-1 page table + * info (IOMMU_HWPT_DATA_VTD_S1) + * @flags: Combination of enum iommu_hwpt_vtd_s1_flags + * @pgtbl_addr: The base address of the stage-1 page table. + * @addr_width: The address width of the stage-1 page table + * @__reserved: Must be 0 + */ +struct iommu_hwpt_vtd_s1 { + __aligned_u64 flags; + __aligned_u64 pgtbl_addr; + __u32 addr_width; + __u32 __reserved; +}; + /** * enum iommu_hwpt_data_type - IOMMU HWPT Data Type * @IOMMU_HWPT_DATA_NONE: no data + * @IOMMU_HWPT_DATA_VTD_S1: Intel VT-d stage-1 page table */ enum iommu_hwpt_data_type { IOMMU_HWPT_DATA_NONE, + IOMMU_HWPT_DATA_VTD_S1, }; /**