Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A1C1DC433F5 for ; Mon, 15 Nov 2021 09:04:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8782363222 for ; Mon, 15 Nov 2021 09:04:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237596AbhKOJHo (ORCPT ); Mon, 15 Nov 2021 04:07:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37200 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237135AbhKOJGi (ORCPT ); Mon, 15 Nov 2021 04:06:38 -0500 Received: from mail-io1-xd31.google.com (mail-io1-xd31.google.com [IPv6:2607:f8b0:4864:20::d31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2DD66C061202 for ; Mon, 15 Nov 2021 01:03:41 -0800 (PST) Received: by mail-io1-xd31.google.com with SMTP id y16so20254375ioc.8 for ; Mon, 15 Nov 2021 01:03:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=74dMCLzYzCwsHjlKvOxajtzLp8BNnLBK0LstD+tTs0c=; b=qXaIOYDDOyUiGTK+4hF5GAn6kyJObiO2FhHwioNQ1TUiVk1liWEo2/u7xyHq1TSuGo /bUi5aDHNUBXXa1gjA3jhfqdl5BBKm5HaeNrxhX/0bsPCb/2dDaUYP6DFFjxcmuVbz55 +GLIhtFIUWJegng74TXJpLF/S9pIaTPpw4ebfMKjYstdBiHdYk6NrMw8G/OnNM+oNBFc newhI2MBc9iRlFBf9x4AwoVJ4jep9ZCxoDA24SMOVxB01Cq8DCv6I1dvxz6repRcv2kv c/a8cExBbdHgPDOmfUv+7txP1c2G7QNNdtcOyOgjAz1CJmeBYM6AN4Zh7HJX0hxVPadb o/yw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=74dMCLzYzCwsHjlKvOxajtzLp8BNnLBK0LstD+tTs0c=; b=cIIbGUx2e9NdgukBuR7sX0p+oGXhkL/Pz9UcnWPTzBGksEHMttCSgUSPaDCUUBDjtQ Xg/jvfVI7rqYffZFdIYYnoHQRaUza5BWcMqWWaM+HYd+pEvfnG2T3OtAlkDdiTF6CtkE uiqXyEA6JqGWtH8TDokiJB5ldrWutA2cc3xk7eu/di8D/G3Hq1dnSNkMZ0nQ2ZJ+Zl37 DL6StIQF2+18XszHRRTw/OPjuA8vFZiMXgcWYCVF+w6zSdBooChFRO8iFwd/6AUb7elV 3PkA7cPGTmfmavFZpPvvTa8kV8jzZxkW49ciRs9ZJqF3SrsKMsV4CNe2ddT5TMk6O8+I G6MA== X-Gm-Message-State: AOAM533TCx0ukVh3YdF96vViU4fdoqeCgKkpu/bEtWPYWAR0rBz9Zwna n253MPbkUR7gTtBYJZx0A+UVYQBlhp84Su9g3cig/wqE72Y= X-Google-Smtp-Source: ABdhPJzEHl5xBgECXgiMy4JoiV/jJAwTzEoaVy/kJhsNV+vUIBWAkA6RxbuxFWMaNPObBE038Xu1cugyIsybDN5R0P0= X-Received: by 2002:a02:70cf:: with SMTP id f198mr27842143jac.124.1636967020556; Mon, 15 Nov 2021 01:03:40 -0800 (PST) MIME-Version: 1.0 References: <20211112103246.7555-1-bp@alien8.de> <20211112103246.7555-7-bp@alien8.de> In-Reply-To: <20211112103246.7555-7-bp@alien8.de> From: Lai Jiangshan Date: Mon, 15 Nov 2021 17:03:29 +0800 Message-ID: Subject: Re: [PATCH 6/6] x86/cpu: Remove "noclflush" To: Borislav Petkov Cc: X86 ML , LKML Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Nov 12, 2021 at 6:37 PM Borislav Petkov wrote: > > From: Borislav Petkov > > Not really needed anymore and there's clearcpuid=. > > Signed-off-by: Borislav Petkov > --- > Documentation/admin-guide/kernel-parameters.txt | 2 -- > arch/x86/kernel/cpu/common.c | 8 -------- > 2 files changed, 10 deletions(-) > > diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt > index 3a4c3fc88bf1..5239d4ae2b91 100644 > --- a/Documentation/admin-guide/kernel-parameters.txt > +++ b/Documentation/admin-guide/kernel-parameters.txt > @@ -3348,8 +3348,6 @@ > > nocache [ARM] > > - noclflush [BUGS=X86] Don't use the CLFLUSH instruction > - The patch is definitely good for me, but I have no idea what "BUGS=" relates to here. (In the commit 191679fdfa63 ("x86: add noclflush option")) In Documentation/admin-guide/kernel-parameters.rst: BUGS= Relates to possible processor bugs on the said processor. For patch 3,4,5, they can have my reviewed-by: Reviewed-by: Lai Jiangshan