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 551F4C433B4 for ; Sun, 11 Apr 2021 17:04:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1C1CC610A8 for ; Sun, 11 Apr 2021 17:04:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235730AbhDKREU (ORCPT ); Sun, 11 Apr 2021 13:04:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58618 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233514AbhDKRET (ORCPT ); Sun, 11 Apr 2021 13:04:19 -0400 Received: from mail.skyhub.de (mail.skyhub.de [IPv6:2a01:4f8:190:11c2::b:1457]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F04BFC061574 for ; Sun, 11 Apr 2021 10:04:02 -0700 (PDT) Received: from zn.tnic (p200300ec2f23de00ab5e07665a016ca6.dip0.t-ipconnect.de [IPv6:2003:ec:2f23:de00:ab5e:766:5a01:6ca6]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id F15521EC0537; Sun, 11 Apr 2021 19:03:59 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1618160640; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=Fj6oUZT32RkTbK+v7PliIl6WkDBGmBT6G8FTqlcuAV0=; b=Ok85F3sdfr9rP/rnpttdKpi5qwOBR2xrQzk90m5KzPNUfpSRDN2g4AZVgd+oSzxRGpB64f nxJZmNlNWXGgV/t1nPPWi5DSd1qwRb2tGhYhkOxi+013iMCNAFHbU93+mBiZMcQe6S0rm5 1Zi7xNNtLuRPYsAhy9vRIqxHb6BeqOM= Date: Sun, 11 Apr 2021 19:03:57 +0200 From: Borislav Petkov To: Andy Lutomirski Cc: Andi Kleen , Thomas Gleixner , Feng Tang , Ingo Molnar , "H . Peter Anvin" , Peter Zijlstra , X86 ML , LKML , "Zhang, Rui" , "Kleen, Andi" , Dave Hansen , Len Brown Subject: Re: [PATCH] x86/msr: Block writes to certain MSRs unconditionally Message-ID: <20210411170357.GD14022@zn.tnic> References: <20210411164342.GL3762101@tassilo.jf.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Apr 11, 2021 at 09:57:20AM -0700, Andy Lutomirski wrote: > Working around a kernel bug. The workaround only worked on AMD > systems. The correct solution was to fix the kernel bug, not poke > MSRs. Do you remember which program(s) and where I can get them to have a look? -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette