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=-3.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no 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 E882DC433C1 for ; Mon, 22 Mar 2021 11:34:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C24B36198B for ; Mon, 22 Mar 2021 11:34:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229952AbhCVLdu (ORCPT ); Mon, 22 Mar 2021 07:33:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39444 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230010AbhCVLdj (ORCPT ); Mon, 22 Mar 2021 07:33:39 -0400 Received: from mail-lf1-x130.google.com (mail-lf1-x130.google.com [IPv6:2a00:1450:4864:20::130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DBEBCC061574 for ; Mon, 22 Mar 2021 04:33:38 -0700 (PDT) Received: by mail-lf1-x130.google.com with SMTP id o10so20693151lfb.9 for ; Mon, 22 Mar 2021 04:33:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=shutemov-name.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=aC2zWxKh8h9yHiD2xeuwLXX1xV0ZgyBrKCIhHDY5H2o=; b=ZSGptlNY3TV6osXspfB6Yn0ZJO3GuxZfOL/Fu0isJaoYmVcMpPSQbVTSBn9c5mTSEA LTMelrPjHBm5crPLQkr9bPUQQYhynmbUipldWsBGQW2vnGJepKZ/QXFFhvUMRTACUhuw s9S/jbqIKXf2Vey3tdRYq6C15FpKTEc0pIR5uFfDmGz6QRdKhz9JMkd5bKgXenraMCQ8 sX2QV60eMpa3rEE/iRF4PdvRdUdcorAtjcYY/ZdFAVPtSa0puiPKeYXNL3i5bwe+lcna occ6hoU7QY/zFYyxuEn9nExU2MqpMwJMmI6TKwxtodNgA0dSGLCyL8cyS3GfjnFdo4RS nMYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=aC2zWxKh8h9yHiD2xeuwLXX1xV0ZgyBrKCIhHDY5H2o=; b=kT0EiJ/EoCZdJIS86iZbaSj/R98nvr8+PiXUJr/GSeZYPvMn0mwXTeMI5/ZhLS2yXP Q8UaSBb66H1eHEKGn1gJuXKlsWbMDcuAQehukviXh3fDjGVeHmqyPJ3ERSl4lmkbR4R1 /GsW7df49GQ8IkNFEwvOX+X894lOTPvKmqW1SxQNfY7REGQQlV4ZtO7KF4ntVVRP/snp bocqq3fhnuSG5Hbz5CEwhn/rqpVmSi3vP+O/xYmJ5J/nbRgAKjerVYyf5hVq6VxH2Dqb PoNDHQs6TkSHPZ82T6bCHymiC3357+uyGcrXeL0+aKymwGkXbR3pwz6wVTY2s/03pV/h B22A== X-Gm-Message-State: AOAM532+rMVP6NEucTP1ITiYqucmrfJHS888C41DRs4SZRqQLKPg4z7E 1U9IW8NYG8/x7/tH4CuSmrAYbQ== X-Google-Smtp-Source: ABdhPJxMnipHkRpXAneqmErx/D3g0D2rkXq/Hs50ihFqlwye/4wxG9jeysmcs7uX5nhojYOuLACxOw== X-Received: by 2002:a19:712:: with SMTP id 18mr8623697lfh.591.1616412817450; Mon, 22 Mar 2021 04:33:37 -0700 (PDT) Received: from box.localdomain ([86.57.175.117]) by smtp.gmail.com with ESMTPSA id w13sm1918639ljw.2.2021.03.22.04.33.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Mar 2021 04:33:36 -0700 (PDT) Received: by box.localdomain (Postfix, from userid 1000) id 5440A101DEB; Mon, 22 Mar 2021 14:33:44 +0300 (+03) Date: Mon, 22 Mar 2021 14:33:44 +0300 From: "Kirill A. Shutemov" To: Yu-cheng Yu Cc: x86@kernel.org, "H. Peter Anvin" , Thomas Gleixner , Ingo Molnar , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org, Arnd Bergmann , Andy Lutomirski , Balbir Singh , Borislav Petkov , Cyrill Gorcunov , Dave Hansen , Eugene Syromiatnikov , Florian Weimer , "H.J. Lu" , Jann Horn , Jonathan Corbet , Kees Cook , Mike Kravetz , Nadav Amit , Oleg Nesterov , Pavel Machek , Peter Zijlstra , Randy Dunlap , "Ravi V. Shankar" , Vedvyas Shanbhogue , Dave Martin , Weijiang Yang , Pengfei Xu , Haitao Huang Subject: Re: [PATCH v23 13/28] mm: Introduce VM_SHSTK for shadow stack memory Message-ID: <20210322113344.vf55cya7frr5hvoo@box> References: <20210316151054.5405-1-yu-cheng.yu@intel.com> <20210316151054.5405-14-yu-cheng.yu@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210316151054.5405-14-yu-cheng.yu@intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-api@vger.kernel.org On Tue, Mar 16, 2021 at 08:10:39AM -0700, Yu-cheng Yu wrote: > +#ifdef CONFIG_X86_CET > +# define VM_SHSTK VM_HIGH_ARCH_5 > +#else > +# define VM_SHSTK VM_NONE > +#endif > + Why not VM_SHADOW_STACK? Random reader may think SH stands for SHARED or something. -- Kirill A. Shutemov