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=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,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 E3017C10F0E for ; Thu, 18 Apr 2019 17:01:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2B72E2171F for ; Thu, 18 Apr 2019 17:01:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389692AbfDRRBB (ORCPT ); Thu, 18 Apr 2019 13:01:01 -0400 Received: from mga09.intel.com ([134.134.136.24]:49684 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388299AbfDRRBA (ORCPT ); Thu, 18 Apr 2019 13:01:00 -0400 X-Amp-Result: UNSCANNABLE X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Apr 2019 10:00:56 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,366,1549958400"; d="scan'208";a="165889735" Received: from sjchrist-coffee.jf.intel.com (HELO linux.intel.com) ([10.54.74.181]) by fmsmga001.fm.intel.com with ESMTP; 18 Apr 2019 10:00:54 -0700 Date: Thu, 18 Apr 2019 10:00:52 -0700 From: Sean Christopherson To: Paolo Bonzini Cc: Vitaly Kuznetsov , kvm@vger.kernel.org, Radim =?utf-8?B?S3LEjW3DocWZ?= , Roman Kagan , linux-kernel@vger.kernel.org Subject: Re: [PATCH] x86: kvm: hyper-v: deal with buggy TLB flush requests from WS2012 Message-ID: <20190418170052.GE17218@linux.intel.com> References: <20190320174320.9459-1-vkuznets@redhat.com> <20190418141752.GB17218@linux.intel.com> <20190418165611.GD17218@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Apr 18, 2019 at 06:58:01PM +0200, Paolo Bonzini wrote: > On 18/04/19 18:56, Sean Christopherson wrote: > > For simplicity, flush all CPUs if the guest neglected to set processor_mask. > > We don't know if it neglected to set processor_mask or the flag... Were you a lawyer before becoming a maintainer? :-) Yeah, go with your version, I'll get out of the way...