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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS 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 77D5FECE567 for ; Fri, 21 Sep 2018 16:36:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 153C121569 for ; Fri, 21 Sep 2018 16:36:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 153C121569 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390726AbeIUW02 (ORCPT ); Fri, 21 Sep 2018 18:26:28 -0400 Received: from mga07.intel.com ([134.134.136.100]:57258 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390065AbeIUW01 (ORCPT ); Fri, 21 Sep 2018 18:26:27 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 Sep 2018 09:36:47 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,285,1534834800"; d="scan'208";a="92594668" Received: from ray.jf.intel.com (HELO [10.7.198.156]) ([10.7.198.156]) by orsmga001.jf.intel.com with ESMTP; 21 Sep 2018 09:36:12 -0700 Subject: Re: [patch V3 04/11] x86/mm/cpa: Allow range check for static protections To: Thomas Gleixner , LKML References: <20180917142906.384767038@linutronix.de> <20180917143545.995734490@linutronix.de> Cc: x86@kernel.org, Peter Zijlstra , Bin Yang , Mark Gross From: Dave Hansen Openpgp: preference=signencrypt Autocrypt: addr=dave.hansen@intel.com; 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Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20180917143545.995734490@linutronix.de> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/17/2018 07:29 AM, Thomas Gleixner wrote: > Checking static protections only page by page is slow especially for huge > pages. To allow quick checks over a complete range, add the ability to do > that. > > Make the checks inclusive so the ranges can be directly used for debug output > later. > > No functional change. Reviewed-by: Dave Hansen