From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753601AbcGFLsb (ORCPT ); Wed, 6 Jul 2016 07:48:31 -0400 Received: from mx1.redhat.com ([209.132.183.28]:36498 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751696AbcGFLs3 (ORCPT ); Wed, 6 Jul 2016 07:48:29 -0400 Subject: Re: [PATCH 0/2] KVM: MMU: support VMAs that got remap_pfn_range-ed To: Xiao Guangrong , Neo Jia References: <1467291711-3230-1-git-send-email-pbonzini@redhat.com> <20160705054147.GA27138@nvidia.com> <577C664E.3080802@linux.intel.com> <20160706021839.GA9064@nvidia.com> <577C6E66.60601@linux.intel.com> <20160706025750.GA9457@nvidia.com> <577C82BE.1060900@linux.intel.com> Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Kirti Wankhede , Andrea Arcangeli , =?UTF-8?B?UmFkaW0gS3LEjW3DocWZ?= From: Paolo Bonzini Message-ID: <6c882628-57bd-b309-5156-519a1405ecec@redhat.com> Date: Wed, 6 Jul 2016 13:48:24 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.1.1 MIME-Version: 1.0 In-Reply-To: <577C82BE.1060900@linux.intel.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Wed, 06 Jul 2016 11:48:28 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06/07/2016 06:02, Xiao Guangrong wrote: >>> >>>> >>>> May I ask you what the exact issue you have with this interface for >>>> Intel to support >>>> your own GPU virtualization? >>> >>> Intel's vGPU can work with this framework. We really appreciate your >>> / nvidia's >>> contribution. >> >> Then, I don't think we should embargo Paolo's patch. > > This patchset is specific for the framework design, i.e, mapping memory when > fault happens rather than mmap(), and this design is exact what we are > discussing for nearly two days. I disagree, this patch fixes a bug because what Neo is doing is legal. It may not be the design that will be committed, but the bug they found in KVM is real. Paolo