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=-12.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,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 A9A9DC48BE0 for ; Fri, 11 Jun 2021 18:47:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 858E461042 for ; Fri, 11 Jun 2021 18:47:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230313AbhFKStz (ORCPT ); Fri, 11 Jun 2021 14:49:55 -0400 Received: from mail.kernel.org ([198.145.29.99]:50972 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229540AbhFKStx (ORCPT ); Fri, 11 Jun 2021 14:49:53 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3153E61042; Fri, 11 Jun 2021 18:47:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1623437275; bh=Vmypy4K+1A/edF0vShE8gEQdjBb6fd6InO7a7lpJm8Y=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=UyKqkM3tDMNEJUjg3vjmgvDYVh5FZ76pI4EnxEA0FUukwB3Fll1DB453T1jWyGPtg 6muE5QjLKZnL7LuWtHOZP7+RGyKMi9dj7N0SGwmv+4We9lPnFiWrpBe8DNYhy3ZgDV nn25Wf0Oq8bnh1OPMG9IUwMO4aGU3EaNVdiHpIWkN4nq4EBeEW+hjycc6gprLAG5NO ngYJcJTx1oR3L2KtxDXsrYehbGn7OmlOpt30+gCSkutrJNSALYFag4SduSATklVbhN Mz8sF+tzc+28UjVpsTfUScTgq9WK6d1dSWeQoijUMexHixVV/xPZXt2cWtn5Ne14CE Xjng7gmKPR6kQ== Subject: Re: [patch 07/41] x86/fpu: Simplify PTRACE_GETREGS code To: Thomas Gleixner , LKML Cc: Dave Hansen , Fenghua Yu , Tony Luck , Yu-cheng Yu , Sebastian Andrzej Siewior , Borislav Petkov , Peter Zijlstra , Kan Liang References: <20210611161523.508908024@linutronix.de> <20210611163111.724946882@linutronix.de> From: Andy Lutomirski Message-ID: Date: Fri, 11 Jun 2021 11:47:54 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: <20210611163111.724946882@linutronix.de> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 6/11/21 9:15 AM, Thomas Gleixner wrote: > From: Dave Hansen > > ptrace() has interfaces that let a ptracer inspect a ptracee's register state. > This includes XSAVE state. The ptrace() ABI includes a hardware-format XSAVE > buffer for both the SETREGS and GETREGS interfaces. Reviewed-by: Andy Lutomirski