From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [PATCH] VFIO driver: Non-privileged user level PCI drivers Date: Mon, 31 May 2010 14:50:29 +0300 Message-ID: <4C03A285.7060902@redhat.com> References: <4c004cba.Z/2Hpd7reetFaFC5%pugs@cisco.com> <20100530121944.GH27611@redhat.com> <4C025999.7080706@redhat.com> <20100530124949.GI27611@redhat.com> <4C0261C1.9090204@redhat.com> <20100530130332.GM27611@redhat.com> <4C026497.8070901@redhat.com> <20100530145309.GO27611@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Tom Lyon , linux-kernel@vger.kernel.org, kvm@vger.kernel.org, chrisw@sous-sol.org, joro@8bytes.org, hjk@linutronix.de, gregkh@suse.de, aafabbri@cisco.com, scofeldm@cisco.com To: "Michael S. Tsirkin" Return-path: Received: from mx1.redhat.com ([209.132.183.28]:43700 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751691Ab0EaLuu (ORCPT ); Mon, 31 May 2010 07:50:50 -0400 In-Reply-To: <20100530145309.GO27611@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On 05/30/2010 05:53 PM, Michael S. Tsirkin wrote: > > So what I suggested is failing any kind of access until iommu > is assigned. > So, the kernel driver must be aware of the iommu. In which case it may as well program it. -- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain.