Received: by 2002:a25:6193:0:0:0:0:0 with SMTP id v141csp1913528ybb; Thu, 2 Apr 2020 09:35:21 -0700 (PDT) X-Google-Smtp-Source: APiQypLrjnDJ4dr8j9EoITbnMqs+311+NeoW7DApc/cnjT0rNVfmeMEGLh8C7bTFge33SWpntCEb X-Received: by 2002:aca:bac1:: with SMTP id k184mr2930565oif.157.1585845320960; Thu, 02 Apr 2020 09:35:20 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1585845320; cv=none; d=google.com; s=arc-20160816; b=D0PGLEE+0kqbnYRLGPEvCQn/rtqBoBJ10JR9CnmdycPLQdNk2GmPG0xewFtc/1MuZI A4Genpx8NcFvd586KR1IvtuKfBUCCe7fyJM11ayYvNGd4duu0D42troRLOkOK/KQPexn uqwp/+u9M9uEULiN4uMbmhObCrpfd+ncmxsH9cueGL61PpV++oqg/E/gmhvjjcRYUm7/ IyDmXEwUFW21lDb/TT4VoDG22dBJLiYRP2B2CIq/++cLu5dV9puCOyhU530SHYEgv72E BEomaDegW2JqOFCRwfDgdGPnKG/Rb7OK70eBO6YVXNSj0Tee0O2yLAmu1NPB1TSGOHqC zqWg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:user-agent:references :message-id:in-reply-to:subject:cc:to:reply-to:from:date; bh=a5hp1nZNRVS6Uoio5t1tTqAnGgNB3V9e+dQQgUxH5DA=; b=icDIWFVwpdAKVz2BqrpK+q33g2QH5353yUnG0jHUkhnIC6eBgXmfADyeV0U1XP7xGh caK0cWbIeb/y0iVmKzgnUyD/M1QhUTw/iUP1VohbIb1IYswEuikQTDwjmSzqdZQiQUUh 1Aelno15hoMkKYTD/J4i3u+KIRAxejp+MN8c2AaC4m0xeCj8YlHOWonIIBCX1f0FOtCM 9hVUzu8/yeqDfvlIzpvhVZ36LdrHdkK/k78l9Jvis5763yEM+7OKia9b8eAjvPZC4aA7 VXVwqndNvQjr3FGeoZd98HWE2TMc5vKUA676lkLLT3fpetIzYmeoJzJx+aRf45vh4FPE qhbQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id f1si2545201otq.90.2020.04.02.09.35.07; Thu, 02 Apr 2020 09:35:20 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388862AbgDBOxI (ORCPT + 99 others); Thu, 2 Apr 2020 10:53:08 -0400 Received: from mailbackend.panix.com ([166.84.1.89]:10129 "EHLO mailbackend.panix.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388855AbgDBOxH (ORCPT ); Thu, 2 Apr 2020 10:53:07 -0400 Received: from xps-7390 (c-73-241-154-233.hsd1.ca.comcast.net [73.241.154.233]) by mailbackend.panix.com (Postfix) with ESMTPSA id 48tQzP4d8fzHyQ; Thu, 2 Apr 2020 10:53:05 -0400 (EDT) Date: Thu, 2 Apr 2020 07:53:04 -0700 (PDT) From: "Kenneth R. Crudup" Reply-To: "Kenneth R. Crudup" To: Peter Zijlstra cc: Thomas Gleixner , LKML , x86@kernel.org, Paolo Bonzini , Jessica Yu , Fenghua Yu , Xiaoyao Li , Nadav Amit , Thomas Hellstrom , Sean Christopherson , Tony Luck , Steven Rostedt Subject: Re: [patch 0/2] x86: Prevent Split-Lock-Detection wreckage on VMX hypervisors In-Reply-To: <20200402144618.GC20730@hirez.programming.kicks-ass.net> Message-ID: References: <20200402123258.895628824@linutronix.de> <20200402143203.GJ20713@hirez.programming.kicks-ass.net> <20200402144618.GC20730@hirez.programming.kicks-ass.net> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > > (Also, what "thing" exactly did you want?) On Thu, 2 Apr 2020, Peter Zijlstra wrote: > All the .ko files that come with vmware. Ah, gotcha. One thing you/VMWare may want to look at is it turns out that "vmw_vmci", part of the kernel tree (CONFIG_VMWARE_VMCI) has to be compiled into the kernel as a module so udev can properly create the Misc device node (I'd tried making it a built-in and messing with udev rules and the other, compiled-in-later VMWare module loading system didn't seem to like that). Maybe some sort of mitigation for this can be done there, putting it back in-tree? But anyway, I'll send you a .tar.bz2 in a little bit. -Kenny -- Kenneth R. Crudup Sr. SW Engineer, Scott County Consulting, Silicon Valley