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=1.7 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, FSL_HELO_FAKE,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT 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 D0892C43441 for ; Thu, 22 Nov 2018 07:45:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 972E220864 for ; Thu, 22 Nov 2018 07:45:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="FJdLgQXI" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 972E220864 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org 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 S2392683AbeKVSXQ (ORCPT ); Thu, 22 Nov 2018 13:23:16 -0500 Received: from mail-wm1-f53.google.com ([209.85.128.53]:52915 "EHLO mail-wm1-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729423AbeKVSXP (ORCPT ); Thu, 22 Nov 2018 13:23:15 -0500 Received: by mail-wm1-f53.google.com with SMTP id r11-v6so7855359wmb.2 for ; Wed, 21 Nov 2018 23:45:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=6yY/lCtm4vceGoXi6Z7QaJMba46cENnJPnOY7yEo+Mo=; b=FJdLgQXI1PkNb71euVGHhXwNwZzSqg4unyb2S5WDnA1m1J2IzjdgcMghLgTepofW19 4DxpXDM3fJyBmfY+J3FmtpG/gE10EG2+v+7TWjeVJiLSQL4T+PGPs+LuGtjeAWJo34nk pNWz1aI313uCdRzxPxy+7ofvF8GkN9cJUkaf8R37bevYBgtEYH0hx43gb/q6wK9p0Ibv X+idb+0LWVP5lprPPiJ/mHgZOeOFcYGyQkHpMlrgEAV6GA5Wd4M5vx1c7nqsC1KgGzKf Qv3QBzz70x8dU4atbUz7JHWa2YS/qFAqDZFRxlWe1EY9v/sW/IjaMkP1g9xxHiIQcpOv unrw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=6yY/lCtm4vceGoXi6Z7QaJMba46cENnJPnOY7yEo+Mo=; b=tNIfBZL5tk3zyDagLe1NYCDUc5y8mEXzGwCstDbi9RO2ovZSJgvRlEix6GdXgf4jFm uTzixz90oSqTyKo1j2SeLIfWUBKPhu6PIIF8AMcyvP5S5ZSLXsKojUEHsvx5jal/Gt4N ofnQxthKl8BsrDIl8aGXygrxEu+sPPyW9Pe0osKqbGH67SJSv+WGMLQnidsiJSrrQUxG KWmTeLKJbjeG213bYeGtE81oGgWbZtmVuRTq4fD345CYNdW8wJlOf8rqLrkVJNiBqnEa Hg8fcevEa8NTeXYpYSdLaFZcHHkooHKqT2L4hHBv5+xVf/R9gbKXjZyHQiSPNcFHjCLp dCGQ== X-Gm-Message-State: AGRZ1gIHOq2zBIF5qS32MSB9OcaujbZQDMsGCqMKYvpI3wjoQbhW63PB ZpQdfeI7mogrMG5V+cSv6EE= X-Google-Smtp-Source: AJdET5ch8gdvQvw4kBjOkt16vJ8ZCCWAnadpmg6ri+Vrgj92QTeCYTvwE7UBM2SMu9dcKd8Ln8prxw== X-Received: by 2002:a1c:b58b:: with SMTP id e133mr8844086wmf.0.1542872699910; Wed, 21 Nov 2018 23:44:59 -0800 (PST) Received: from gmail.com (2E8B0CD5.catv.pool.telekom.hu. [46.139.12.213]) by smtp.gmail.com with ESMTPSA id r76-v6sm3705038wmb.21.2018.11.21.23.44.58 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 21 Nov 2018 23:44:59 -0800 (PST) Date: Thu, 22 Nov 2018 08:44:56 +0100 From: Ingo Molnar To: Tim Chen Cc: Thomas Gleixner , LKML , x86@kernel.org, Peter Zijlstra , Andy Lutomirski , Linus Torvalds , Jiri Kosina , Tom Lendacky , Josh Poimboeuf , Andrea Arcangeli , David Woodhouse , Andi Kleen , Dave Hansen , Casey Schaufler , Asit Mallick , Arjan van de Ven , Jon Masters , Waiman Long , Greg KH , Dave Stewart , Kees Cook Subject: Re: [patch 18/24] x86/speculation: Avoid __switch_to_xtra() calls Message-ID: <20181122074456.GF41788@gmail.com> References: <20181121201430.559770965@linutronix.de> <20181121201724.041653473@linutronix.de> <73b835e8-618f-1cd7-09e3-99b1bc4ca2c2@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <73b835e8-618f-1cd7-09e3-99b1bc4ca2c2@linux.intel.com> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Tim Chen wrote: > On 11/21/2018 12:14 PM, Thomas Gleixner wrote: > > > + * Avoid __switch_to_xtra() invocation when conditional stpib is > > s/stpib/stibp and: s/stibp/STIBP to make it consistent throughout the patchset. Thanks, Ingo