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=-7.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_MUTT 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 D37F9C43441 for ; Thu, 29 Nov 2018 14:27:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9BC0C2133F for ; Thu, 29 Nov 2018 14:27:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="iEJ8HO/f" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9BC0C2133F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=oracle.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 S2387863AbeK3BdY (ORCPT ); Thu, 29 Nov 2018 20:33:24 -0500 Received: from userp2130.oracle.com ([156.151.31.86]:41438 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731863AbeK3BdX (ORCPT ); Thu, 29 Nov 2018 20:33:23 -0500 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.22/8.16.0.22) with SMTP id wATEQTU6070848; Thu, 29 Nov 2018 14:27:10 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=date : from : to : cc : subject : message-id : references : mime-version : content-type : in-reply-to; s=corp-2018-07-02; bh=ljns65lWR3cMzzA95zKO0tQT/dZDPp12ok9S/M6sGhA=; b=iEJ8HO/f4gYyxKDphuUSrVVVkkBwC+wKDJo3SoOzWDkJAuteLSP/vRcmAjiboehmdhC1 gCdwNJk46oYZN7v0zXs+ge0zl9CpMg8+n8yppWB7hMeup33Z/mVuUPhhOuqcZrJqJYBU MAzSsviqx/7BTrtB/Nb0UPLMKjfEuqKmNyemZwq2Yiz/M/cnFlU7LDhXVI4POt0e138z 8XxCQxnxXLPH9IQjZ9+A8xKV9HoXVRuf6tWVixBp69RP3VhbeqpdfJIqVcyOVE02rR7x 1fWr3YpQye4i+Cx6dNOqksrL7ZrX1dBWgK9CyA5LAVbnH/jq1iRocZPnBUjfa7aF3ptJ YQ== Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp2130.oracle.com with ESMTP id 2nxx2uggmr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 29 Nov 2018 14:27:10 +0000 Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userv0022.oracle.com (8.14.4/8.14.4) with ESMTP id wATER9f3018382 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 29 Nov 2018 14:27:09 GMT Received: from abhmp0001.oracle.com (abhmp0001.oracle.com [141.146.116.7]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id wATER8JC021355; Thu, 29 Nov 2018 14:27:08 GMT Received: from char.us.oracle.com (/10.152.32.25) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 29 Nov 2018 06:27:08 -0800 Received: by char.us.oracle.com (Postfix, from userid 1000) id 842236A00FB; Thu, 29 Nov 2018 09:27:05 -0500 (EST) Date: Thu, 29 Nov 2018 09:27:05 -0500 From: Konrad Rzeszutek Wilk To: Thomas Gleixner Cc: LKML , x86@kernel.org, Peter Zijlstra , Andy Lutomirski , Linus Torvalds , Jiri Kosina , Tom Lendacky , Josh Poimboeuf , Andrea Arcangeli , David Woodhouse , Tim Chen , 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 V2 01/28] x86/speculation: Update the TIF_SSBD comment Message-ID: <20181129142705.GB32259@char.us.oracle.com> References: <20181125183328.318175777@linutronix.de> <20181125185003.593893901@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181125185003.593893901@linutronix.de> User-Agent: Mutt/1.8.3 (2017-05-23) X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9091 signatures=668686 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=954 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1811290121 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Nov 25, 2018 at 07:33:29PM +0100, Thomas Gleixner wrote: > "Reduced Data Speculation" is an obsolete term. The correct new name is > "Speculative store bypass disable" - which is abbreviated into SSBD. > > Signed-off-by: Tim Chen > Signed-off-by: Thomas Gleixner Reviewed-by: Konrad Rzeszutek Wilk Thank you! > > --- > arch/x86/include/asm/thread_info.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > --- a/arch/x86/include/asm/thread_info.h > +++ b/arch/x86/include/asm/thread_info.h > @@ -79,7 +79,7 @@ struct thread_info { > #define TIF_SIGPENDING 2 /* signal pending */ > #define TIF_NEED_RESCHED 3 /* rescheduling necessary */ > #define TIF_SINGLESTEP 4 /* reenable singlestep on user return*/ > -#define TIF_SSBD 5 /* Reduced data speculation */ > +#define TIF_SSBD 5 /* Speculative store bypass disable */ > #define TIF_SYSCALL_EMU 6 /* syscall emulation active */ > #define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */ > #define TIF_SECCOMP 8 /* secure computing */ > >