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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 142FCC433E0 for ; Sun, 7 Feb 2021 17:50:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CF13E64E26 for ; Sun, 7 Feb 2021 17:50:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229711AbhBGRuX (ORCPT ); Sun, 7 Feb 2021 12:50:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60152 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229506AbhBGRuS (ORCPT ); Sun, 7 Feb 2021 12:50:18 -0500 Received: from mail-lf1-x131.google.com (mail-lf1-x131.google.com [IPv6:2a00:1450:4864:20::131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3B932C06174A for ; Sun, 7 Feb 2021 09:49:38 -0800 (PST) Received: by mail-lf1-x131.google.com with SMTP id b2so18799677lfq.0 for ; Sun, 07 Feb 2021 09:49:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=rKILYpI3PDZZLQo46QELRQYDGmjmBPTZ+ke6OG3wj+g=; b=JjPN+LY2C2uyhXZ0GtU1rW4T/flfPNtwdwO85Gl1yztwYYTSt65Ku+sV7Id+UoMl46 SlRryj4NNXdIdWH8sBsj7S76IYWDud1Anm/73ObDwgM89pDKfKvg8dS61hcW/yJH0/5Z 2kq3/HvGZFCM/bTEBOr57Lgztr2XG2r1BAShU= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=rKILYpI3PDZZLQo46QELRQYDGmjmBPTZ+ke6OG3wj+g=; b=cmHKGHqmVh6JBWonikUHNrdhXvfXBqgc8ULfp+lROiz3Thd5JPoIMacQ9S18/JeK/T zhhpEg8E5W/B/lDY6czTYwShoJpCkuaOUsSgJzk6vbDPChRsoshKkVrICni7tUt08j3r ZqoRHH4IzqJpTzF1iS0lRYRfREI9v5jeCbkyDxtZvbRS3btP1ISH8ZYO0QO87hmw58VA 1Js4QE8lcWMUb6f009URBw8WOAGo48MGwtiaSg5wsSYucyOW2cUyqwww3YMpTU2dgoUD xGbmatQmlnCwp2xMp+Fu+SNg6tHqMM/c+mjV6C+JdlG8F0+OYHi31He/ihiiR1Vs2x1w K6hA== X-Gm-Message-State: AOAM531mBFzN0PX+eUg1K/vFeYFCcl68baMwjpthlDaMPmS2zng7akwx 1A/6KgU1Fj/LIiUMm09DfICH1kVIciDSag== X-Google-Smtp-Source: ABdhPJwPmDhRSp2OAf0/yQOzfmGT66CkBsCN1u1UrOGcHBCb3EvkHKjWBvkkQQTH/sBvRHKxLSesCw== X-Received: by 2002:a05:6512:398e:: with SMTP id j14mr8704023lfu.9.1612720176307; Sun, 07 Feb 2021 09:49:36 -0800 (PST) Received: from mail-lj1-f182.google.com (mail-lj1-f182.google.com. [209.85.208.182]) by smtp.gmail.com with ESMTPSA id h7sm1805376lfc.200.2021.02.07.09.49.35 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 07 Feb 2021 09:49:35 -0800 (PST) Received: by mail-lj1-f182.google.com with SMTP id y14so13971346ljn.8 for ; Sun, 07 Feb 2021 09:49:35 -0800 (PST) X-Received: by 2002:a2e:8590:: with SMTP id b16mr490129lji.507.1612720174886; Sun, 07 Feb 2021 09:49:34 -0800 (PST) MIME-Version: 1.0 References: <20210207104022.GA32127@zn.tnic> In-Reply-To: <20210207104022.GA32127@zn.tnic> From: Linus Torvalds Date: Sun, 7 Feb 2021 09:49:18 -0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [GIT PULL] x86/urgent for v5.11-rc7 To: Borislav Petkov , Steven Rostedt Cc: x86-ml , lkml Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Feb 7, 2021 at 2:40 AM Borislav Petkov wrote: > > - Disable CET instrumentation in the kernel so that gcc doesn't add > ENDBR64 to kernel code and thus confuse tracing. So this is clearly the right thing to do for now, but I wonder if people have a plan for actually enabling CET and endbr at cpl0 at some point? Linus