From nobody Wed Dec 17 09:50:04 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C6F9DCDB465 for ; Tue, 17 Oct 2023 00:48:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234370AbjJQAsv (ORCPT ); Mon, 16 Oct 2023 20:48:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46824 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234350AbjJQAsp (ORCPT ); Mon, 16 Oct 2023 20:48:45 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.93]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 35518115 for ; Mon, 16 Oct 2023 17:48:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1697503722; x=1729039722; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=0DTtg53Mry+bx0RWv8c9JmmtiJF5A7k4iMPvgpVkaoA=; b=XDx0ZyM09D5cAU7IFhQon+D2/rpP2/wtAsqnwTn4E288KRWmkL5cRGI9 rAUh8rSjPkPd44Xds5H73EMAKv/IqHh0tqD+bwJWLaiPMaXPiQq8wGIjT e7PK/RsxljI9DgS9l7XdwJmWWOFf+rv//p8jbTlbidNDRF21gK1x+aPfR 66OeUCE8FxoxAElAKzTpBletalaC3L20dBrGAMWhJwRwk/SYItzwUS8PZ KsMrqiAjmgPCut9U91HRmAye5YBOFulyhoeXWQEv1xEI2HooVudzcus1x VLUxWw5y+qRJVtd0W1GAQiIARKPfu8+WDVTZFFlW9R1xNDwdefMRFpAGP Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10865"; a="382893318" X-IronPort-AV: E=Sophos;i="6.03,230,1694761200"; d="scan'208";a="382893318" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Oct 2023 17:48:41 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10865"; a="705793755" X-IronPort-AV: E=Sophos;i="6.03,230,1694761200"; d="scan'208";a="705793755" Received: from sqa-gate.sh.intel.com (HELO spr-2s5.tsp.org) ([10.239.48.212]) by orsmga003.jf.intel.com with ESMTP; 16 Oct 2023 17:48:37 -0700 From: Tina Zhang To: iommu@lists.linux.dev, linux-kernel@vger.kernel.org Cc: David Woodhouse , Lu Baolu , Joerg Roedel , Will Deacon , Robin Murphy , Jason Gunthorpe , Kevin Tian , Nicolin Chen , Michael Shavit , Vasant Hegde , Tina Zhang , Jason Gunthorpe Subject: [PATCH v8 3/5] mm: Add structure to keep sva information Date: Tue, 17 Oct 2023 08:48:00 +0800 Message-Id: <20231017004802.109618-4-tina.zhang@intel.com> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20231017004802.109618-1-tina.zhang@intel.com> References: <20231017004802.109618-1-tina.zhang@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Introduce iommu_mm_data structure to keep sva information (pasid and the related sva domains). Add iommu_mm pointer, pointing to an instance of iommu_mm_data structure, to mm. Reviewed-by: Vasant Hegde Reviewed-by: Lu Baolu Reviewed-by: Jason Gunthorpe Tested-by: Nicolin Chen Signed-off-by: Tina Zhang --- include/linux/iommu.h | 5 +++++ include/linux/mm_types.h | 2 ++ 2 files changed, 7 insertions(+) diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 074b98f9e5dc..e350520e3a35 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -670,6 +670,11 @@ struct iommu_sva { struct iommu_domain *domain; }; =20 +struct iommu_mm_data { + u32 pasid; + struct list_head sva_domains; +}; + int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwno= de, const struct iommu_ops *ops); void iommu_fwspec_free(struct device *dev); diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 36c5b43999e6..9f4efed85f74 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -670,6 +670,7 @@ struct mm_cid { #endif =20 struct kioctx_table; +struct iommu_mm_data; struct mm_struct { struct { /* @@ -883,6 +884,7 @@ struct mm_struct { =20 #ifdef CONFIG_IOMMU_SVA u32 pasid; + struct iommu_mm_data *iommu_mm; #endif #ifdef CONFIG_KSM /* --=20 2.39.3