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=-23.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT 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 E0176C4361A for ; Sat, 5 Dec 2020 00:29:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ABB6122D6E for ; Sat, 5 Dec 2020 00:29:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730860AbgLEA3O (ORCPT ); Fri, 4 Dec 2020 19:29:14 -0500 Received: from mail.skyhub.de ([5.9.137.197]:57664 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726868AbgLEA3O (ORCPT ); Fri, 4 Dec 2020 19:29:14 -0500 Received: from zn.tnic (p200300ec2f12b10072f1dc97378a5926.dip0.t-ipconnect.de [IPv6:2003:ec:2f12:b100:72f1:dc97:378a:5926]) (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 501551EC03E3; Sat, 5 Dec 2020 01:28:33 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1607128113; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type: content-transfer-encoding:content-transfer-encoding:in-reply-to: references; bh=xJP6JmlgBydA88wi424lhafFwoggVfh+3OdHkD+Ot7I=; b=QLRw1KXWbWGJmB16R7x3Y6YyDc9i67W+U5Ro6m85VfIZ3HOu/wbt+Kzcq1WtJ8uz0kSa17 U+AJro8Yp+e1oq6wDQj3ZUEsQceo/KHdv8QD6f/vQQ+dlvtMPgmRwa5nf/ZHxKvsFcshgC wAON3a/+0YQTJsLbaJh6GkrSBA79mZU= From: Borislav Petkov To: X86 ML Cc: LKML Subject: [PATCH] x86/msr: Add a pointer to an URL which contains further details Date: Sat, 5 Dec 2020 01:28:25 +0100 Message-Id: <20201205002825.19107-1-bp@alien8.de> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Borislav Petkov After having collected the majority of reports about MSRs being written by userspace tools and what tools those are, and all newer reports mostly repeating, add an URL where detailed information is gathered and kept up-to-date. Signed-off-by: Borislav Petkov --- arch/x86/kernel/msr.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c index 95e6b97b7d8b..8a67d1fa8dc5 100644 --- a/arch/x86/kernel/msr.c +++ b/arch/x86/kernel/msr.c @@ -99,8 +99,9 @@ static int filter_write(u32 reg) if (!__ratelimit(&fw_rs)) return 0; - pr_warn("Write to unrecognized MSR 0x%x by %s (pid: %d). Please report to x86@kernel.org.\n", + pr_warn("Write to unrecognized MSR 0x%x by %s (pid: %d).\n", reg, current->comm, current->pid); + pr_warn("See https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/about for details.\n"); return 0; } -- 2.21.0