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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8416DC433F5 for ; Mon, 3 Oct 2022 19:42:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229577AbiJCTmU (ORCPT ); Mon, 3 Oct 2022 15:42:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34338 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229484AbiJCTmT (ORCPT ); Mon, 3 Oct 2022 15:42:19 -0400 Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 76C5BB93; Mon, 3 Oct 2022 12:42:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1664826138; x=1696362138; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=2vg3bLjyeUzK6paD5/QSLqHjaBUk826u4c5n0Pm3n0U=; b=dmNDLpD0rahgCInzkxntUOT9FMGH70XbzCNSXZFPeyo0NRQn1+iZxZTr ivPRJH+WKEZeHOgQVvTPODvQoHtfqf+LIErBUZUJCTR3/0pqmEfRQRTjl i79ugijAf+vlHCd48Mb45Y8OOx0czAq9ToU/VhLiE+0M5Q11mXqEST2T9 VkBlFNHB79d3sC7lFMxKnNty52YmPwOThfqB7g31ebA3BrSeIS2xDAA/E J1m4cpd35Z/GJN71JMmcPcMfZ03Wn2URTN0uE2LUfR5gXMfIEat9Z/m+r +7bep3NrQ79UNFopNz6W+SQ0awcXray6rTMn+laaY+Wl1FNBqPXQa4ePM Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10489"; a="283109878" X-IronPort-AV: E=Sophos;i="5.93,366,1654585200"; d="scan'208";a="283109878" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Oct 2022 12:42:18 -0700 X-IronPort-AV: E=McAfee;i="6500,9779,10489"; a="692216031" X-IronPort-AV: E=Sophos;i="5.93,366,1654585200"; d="scan'208";a="692216031" Received: from akashred-mobl.amr.corp.intel.com (HELO [10.212.139.217]) ([10.212.139.217]) by fmsmga004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Oct 2022 12:42:13 -0700 Message-ID: <18be9cae-91e7-c6f6-a5a7-ec7ceefa5523@intel.com> Date: Mon, 3 Oct 2022 12:42:13 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: [PATCH v2 02/39] x86/cet/shstk: Add Kconfig option for Shadow Stack Content-Language: en-US To: Rick Edgecombe , 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" , Weijiang Yang , "Kirill A . Shutemov" , joao.moreira@intel.com, John Allen , kcc@google.com, eranian@google.com, rppt@kernel.org, jamorris@linux.microsoft.com, dethoma@microsoft.com Cc: Yu-cheng Yu References: <20220929222936.14584-1-rick.p.edgecombe@intel.com> <20220929222936.14584-3-rick.p.edgecombe@intel.com> From: Dave Hansen In-Reply-To: <20220929222936.14584-3-rick.p.edgecombe@intel.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-api@vger.kernel.org On 9/29/22 15:28, Rick Edgecombe wrote: > +config X86_SHADOW_STACK > + prompt "X86 Shadow Stack" > + def_bool n > + depends on ARCH_HAS_SHADOW_STACK > + select ARCH_USES_HIGH_VMA_FLAGS > + help > + Shadow Stack protection is a hardware feature that detects function > + return address corruption. Today the kernel's support is limited to > + virtualizing it in KVM guests. > + Is this help text up to date? It seems a bit at odds with the series title.