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=-5.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 0B1A2C433DF for ; Fri, 29 May 2020 12:10:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DEAA82077D for ; Fri, 29 May 2020 12:10:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alien8.de header.i=@alien8.de header.b="LcyrG+cm" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726477AbgE2MKp (ORCPT ); Fri, 29 May 2020 08:10:45 -0400 Received: from mail.skyhub.de ([5.9.137.197]:45864 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725865AbgE2MKo (ORCPT ); Fri, 29 May 2020 08:10:44 -0400 Received: from zn.tnic (p200300ec2f0f5e0065ddb5c3466bc22e.dip0.t-ipconnect.de [IPv6:2003:ec:2f0f:5e00:65dd:b5c3:466b:c22e]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 90DD31EC0322; Fri, 29 May 2020 14:10:43 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1590754243; h=from:from: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:in-reply-to:in-reply-to: references:references; bh=fme/ekO6mAFo1VevPB2Wamp5hira7XgWhTb1mRZL0U4=; b=LcyrG+cmwwpLX+o0JQl1zIoxCxanONmg2wiJWs4F5IegP7PRg18vBlIXRKwhjpwJSEgLPI wp+tLtAIrRJQ6VvWBdEBSnOtY+p5FNmjRW57S0BYFrBoZtAIE5SVOW5LoD4vZ2tEn258lq 8FWZfbwGa9PdfJ3MzXK4wFWiYzMbpd0= Date: Fri, 29 May 2020 14:10:38 +0200 From: Borislav Petkov To: Jarkko Sakkinen Cc: linux-kernel@vger.kernel.org, x86@kernel.org, linux-sgx@vger.kernel.org, akpm@linux-foundation.org, dave.hansen@intel.com, sean.j.christopherson@intel.com, nhorman@redhat.com, npmccallum@redhat.com, haitao.huang@intel.com, andriy.shevchenko@linux.intel.com, tglx@linutronix.de, kai.svahn@intel.com, josh@joshtriplett.org, luto@kernel.org, kai.huang@intel.com, rientjes@google.com, cedric.xing@intel.com, puiterwijk@redhat.com, Jethro Beekman Subject: Re: [PATCH v30 09/20] mm: Introduce vm_ops->may_mprotect() Message-ID: <20200529121038.GG9011@zn.tnic> References: <20200515004410.723949-1-jarkko.sakkinen@linux.intel.com> <20200515004410.723949-10-jarkko.sakkinen@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20200515004410.723949-10-jarkko.sakkinen@linux.intel.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-sgx-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sgx@vger.kernel.org On Fri, May 15, 2020 at 03:43:59AM +0300, Jarkko Sakkinen wrote: > From: Sean Christopherson > > Add vm_ops()->may_mprotect() to check additional constrains set by a "constraints" > subsystem for a mprotect() call. > > Signed-off-by: Sean Christopherson > Acked-by: Jethro Beekman > Signed-off-by: Jarkko Sakkinen > --- > include/linux/mm.h | 2 ++ > mm/mprotect.c | 14 +++++++++++--- > 2 files changed, 13 insertions(+), 3 deletions(-) This needs an ACK from an mm person. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette