From mboxrd@z Thu Jan 1 00:00:00 1970 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=-14.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 BEF47C43464 for ; Fri, 18 Sep 2020 07:42:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 728A321D43 for ; Fri, 18 Sep 2020 07:42:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="EESe9E7j"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="ClcoxsVR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726795AbgIRHmj (ORCPT ); Fri, 18 Sep 2020 03:42:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49228 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726716AbgIRHmc (ORCPT ); Fri, 18 Sep 2020 03:42:32 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 66BF1C06174A; Fri, 18 Sep 2020 00:42:32 -0700 (PDT) Date: Fri, 18 Sep 2020 07:42:30 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1600414950; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=amQsudwaM7dQyRL1V3JHlgjmezj4ww2nyNxuOnA88hw=; b=EESe9E7j+E83Ke3tDLJqW7YWDaZ/rrqmnswGws2yQf09r78ZRBMe4X4ayRxueI6T98NNed 4w6+xtwz1MlcSMtwzeSBanPjY5Z87+ENqm2EEEFch+QmLKc9glf46M9mgJIserjW8/gNdu jx7Ozq0Xw5B4wbLM8Mg2bBk6lKEFeQYO+txIbEX2fh0v5JvV0qxkFs9Ts2b0brL5z5/CE0 T3HIjQRVLZKuyyIDARZ6F0j6LvV939A2IL8eFEQaOndL0G1nNZtbY+EOeFHmVq4kjLfAtf t2uUHTEP4T7YuKZ5DsgH3/O94milOpO8YqblbwxMJJhHVXk20K9fRol6tcPfkg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1600414950; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=amQsudwaM7dQyRL1V3JHlgjmezj4ww2nyNxuOnA88hw=; b=ClcoxsVRqBfAqMxHNXYSDAo+kAwzX5ZJ28I8TRIh0HiPQLrvygicjRcuKeLEdwSFR0ClmO 8uEfGZoBmNyYKNBQ== From: "tip-bot2 for Fenghua Yu" Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: x86/pasid] mm: Add a pasid member to struct mm_struct Cc: Christoph Hellwig , Fenghua Yu , Borislav Petkov , Tony Luck , x86 , LKML In-Reply-To: <1600187413-163670-8-git-send-email-fenghua.yu@intel.com> References: <1600187413-163670-8-git-send-email-fenghua.yu@intel.com> MIME-Version: 1.0 Message-ID: <160041495015.15536.4295027285506021453.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the x86/pasid branch of tip: Commit-ID: 52ad9bc64c74167466e70e0df4b99ee5ccef0078 Gitweb: https://git.kernel.org/tip/52ad9bc64c74167466e70e0df4b99ee5ccef0078 Author: Fenghua Yu AuthorDate: Tue, 15 Sep 2020 09:30:11 -07:00 Committer: Borislav Petkov CommitterDate: Thu, 17 Sep 2020 20:22:15 +02:00 mm: Add a pasid member to struct mm_struct A PASID is shared by all threads in a process. So the logical place to keep track of it is in the mm_struct. Both ARM and x86 would use this PASID. [ bp: Massage commit message. ] Suggested-by: Christoph Hellwig Signed-off-by: Fenghua Yu Signed-off-by: Borislav Petkov Reviewed-by: Tony Luck Link: https://lkml.kernel.org/r/1600187413-163670-8-git-send-email-fenghua.yu@intel.com --- include/linux/mm_types.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 496c3ff..1ff0615 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -542,6 +542,10 @@ struct mm_struct { atomic_long_t hugetlb_usage; #endif struct work_struct async_put_work; + +#ifdef CONFIG_IOMMU_SUPPORT + u32 pasid; +#endif } __randomize_layout; /*