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=-14.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,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 4B156C2B9F4 for ; Mon, 28 Jun 2021 07:42:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2E01761945 for ; Mon, 28 Jun 2021 07:42:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232413AbhF1Hox (ORCPT ); Mon, 28 Jun 2021 03:44:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58090 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232369AbhF1How (ORCPT ); Mon, 28 Jun 2021 03:44:52 -0400 Received: from mail-ed1-x52a.google.com (mail-ed1-x52a.google.com [IPv6:2a00:1450:4864:20::52a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A95A9C061574 for ; Mon, 28 Jun 2021 00:42:25 -0700 (PDT) Received: by mail-ed1-x52a.google.com with SMTP id df12so24405855edb.2 for ; Mon, 28 Jun 2021 00:42:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:mime-version :content-disposition; bh=VMl2wLj7xObslRrjKeSz6EV2ZrGDpAHrMavopbz8jso=; b=YquTn4PCUlVQoiI1R0ogNq4N48oQtF2xzYc8lmNzyBARCJhNOrmCe13WkxNpfkjEky jT80lNzvcW01LnVl2wn8Pfnt1sZ1QOb+SOVi+uNbITW4kU0Ume1Hd6Z5ZN32U65fIqWA gcztElSVJjPbbO+2cufm1Kru0Mkma8n8OxmpBjd2du1v8A+vsypKnhq0cTPW8Dp+ec3A xvxsGyqm+jqeFgSfuQwxTWJXaYU/FZe8mqZlvOYAkIrQB8S+vohp3BW8btCJkw01TLQx G5EaJwjG1NqgbbgufArXd+zw5p35Q+czIuhHukdMqTABu4moXAbqa55Wwi8wFA1Rm5Mf YxbA== 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 :mime-version:content-disposition; bh=VMl2wLj7xObslRrjKeSz6EV2ZrGDpAHrMavopbz8jso=; b=YC5oX8Vkj5bhzQnCmR2qLlEt21bGXYf1Va64X/5D+qbjmgvk5CFJSMSpLJ+R/OV1ye WSdic1H6CV2lvbF5LvxnkjhaytRoJRIPRurAii3+GYGEUT8kJa/hQoTI/wuyJlWDRvUA qAk/bv4iBR/KN5yeu0We39PM4X/DHjclcnTlknzi5dE81S079/0U3ZwAH+n1I0KjCFP2 /a9cvOf771L4f7l05wv9AjHT42njoPqOPABJjZZHyKk3eI6X31pkxgkF4PC42Ccum5JK j3OZ5oMnhF/cPk9lwX6JBUdIumZN5m4ak8+cBroh0a5kEQ0gOP9djHn5r0qJP21cTXmX T66Q== X-Gm-Message-State: AOAM531GIHUczp68LjY9CDYV5VnsM5xArpluHCrGjyPWLDMozA+kX7TZ oas5yv6LVD0brQfEXH1gDpA= X-Google-Smtp-Source: ABdhPJzU5A9QmFMJGM8MwmXjROMzJKJR5VvBUyqoYpIUqVbnhnoVqnyYbSqUP5+3l6djw2XPFy03GQ== X-Received: by 2002:aa7:da88:: with SMTP id q8mr31214034eds.345.1624866144281; Mon, 28 Jun 2021 00:42:24 -0700 (PDT) Received: from gmail.com (94-21-131-96.pool.digikabel.hu. [94.21.131.96]) by smtp.gmail.com with ESMTPSA id x17sm9228944edr.88.2021.06.28.00.42.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Jun 2021 00:42:23 -0700 (PDT) Sender: Ingo Molnar Date: Mon, 28 Jun 2021 09:42:22 +0200 From: Ingo Molnar To: Linus Torvalds Cc: linux-kernel@vger.kernel.org, Borislav Petkov , Thomas Gleixner , Peter Zijlstra , Andrew Morton Subject: [GIT PULL] x86/splitlock changes for v5.14 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Linus, Please pull the latest x86/splitlock git tree from: git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-splitlock-2021-06-28 # HEAD: d28397eaf4c27947a1ffc720d42e8b3a33ae1e2a Documentation/x86: Add ratelimit in buslock.rst Changes in this cycle were: - Add the "ratelimit:N" parameter to the split_lock_detect= boot option, to rate-limit the generation of bus-lock exceptions. This is both easier on system resources and kinder to offending applications than the current policy of outright killing them. - Document the split-lock detection feature and its parameters. Thanks, Ingo ------------------> Fenghua Yu (4): Documentation/x86: Add buslock.rst x86/bus_lock: Set rate limit for bus lock Documentation/admin-guide: Add bus lock ratelimit Documentation/x86: Add ratelimit in buslock.rst Documentation/admin-guide/kernel-parameters.txt | 8 ++ Documentation/x86/buslock.rst | 126 ++++++++++++++++++++++++ Documentation/x86/index.rst | 1 + arch/x86/kernel/cpu/intel.c | 42 +++++++- 4 files changed, 175 insertions(+), 2 deletions(-) create mode 100644 Documentation/x86/buslock.rst