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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT 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 8FFC7C43334 for ; Mon, 3 Sep 2018 07:26:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 529AB2054F for ; Mon, 3 Sep 2018 07:26:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 529AB2054F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=alien8.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727323AbeICLpq (ORCPT ); Mon, 3 Sep 2018 07:45:46 -0400 Received: from mail.skyhub.de ([5.9.137.197]:37792 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726133AbeICLpq (ORCPT ); Mon, 3 Sep 2018 07:45:46 -0400 X-Virus-Scanned: Nedap ESD1 at mail.skyhub.de Received: from mail.skyhub.de ([127.0.0.1]) by localhost (blast.alien8.de [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id UQQZD72kjTmQ; Mon, 3 Sep 2018 09:26:36 +0200 (CEST) Received: from zn.tnic (p200300EC2BCF4100329C23FFFEA6A903.dip0.t-ipconnect.de [IPv6:2003:ec:2bcf:4100:329c:23ff:fea6:a903]) (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 C2DAD1EC00E5; Mon, 3 Sep 2018 09:26:28 +0200 (CEST) Date: Mon, 3 Sep 2018 09:27:35 +0200 From: Borislav Petkov To: KVM Cc: Joerg Roedel , Radim =?utf-8?B?S3LEjW3DocWZ?= , Tom Lendacky , Tony Luck , Yazen Ghannam , LKML Subject: Re: [PATCH 0/2] x86/kvm: Enable MCE injection in the guest v2 Message-ID: <20180903072735.GB10249@zn.tnic> References: <20180628173808.25885-1-bp@alien8.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20180628173808.25885-1-bp@alien8.de> User-Agent: Mutt/1.9.5 (2018-04-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ping... On Thu, Jun 28, 2018 at 07:38:06PM +0200, Borislav Petkov wrote: > From: Borislav Petkov > > Hi all, > > here's v2, dropping patch 3 and incorporating hopefully all of Radim's > feedback. > > Thx. > > v1 cover letter: > > there's this mce-inject.ko module in the kernel which allows for > injecting real MCEs and thus test the MCE handling code. > > It is doubly useful to be able to inject same MCEs in a guest so that > testing of the MCE handling code can happen even easier/faster. In order > to be able to do that on an AMD guest, we need to emulate some bits > and pieces like the HWCR[McStatusWrEn] bit which allows writes to the > MCi_STATUS registers without a #GP. > > The below does that and with it I'm able to properly inject MCEs in said > guest. > > Borislav Petkov (2): > kvm/x86: Move MSR_K7_HWCR to svm.c > x86/kvm: Implement MSR_HWCR support > > arch/x86/kvm/svm.c | 20 ++++++++++++++++++++ > arch/x86/kvm/x86.c | 46 +++++++++++++++++++++++++++++++--------------- > 2 files changed, 51 insertions(+), 15 deletions(-) > > -- > 2.17.0.582.gccdcbd54c > -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.