From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Liu Subject: Re: Requesting for freeze exception for VT-d posted-interrupts Date: Tue, 14 Jul 2015 15:17:40 +0100 Message-ID: <20150714141740.GJ4152@zion.uk.xensource.com> References: <20150713110041.GD4108@zion.uk.xensource.com> <20150714092158.GB4152@zion.uk.xensource.com> <55A4FBEB020000780009090C@mail.emea.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <55A4FBEB020000780009090C@mail.emea.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Jan Beulich Cc: Kevin Tian , Wei Liu , George Dunlap , "andrew.cooper3@citrix.com" , Yong Y Wang , "xen-devel@lists.xen.org" , Yang Z Zhang , Feng Wu List-Id: xen-devel@lists.xenproject.org On Tue, Jul 14, 2015 at 11:09:15AM +0100, Jan Beulich wrote: > >>> On 14.07.15 at 11:21, wrote: > > On Tue, Jul 14, 2015 at 05:51:02AM +0000, Wu, Feng wrote: > >> Is it possible to get to 4.6 if making this feature default off? > > > > Note that I'm not the only one who makes the decision and I can't speak > > for maintainers. The first thing you ought to do is to convince > > maintainers, not me. > > > > If you ask for my opinion -- I don't see a point in releasing feature > > with security flaw in design, even if it is off by default. > > It was actually me who suggested that by flagging this experimental > and defaulting it to off, chances would increase for this to be allowed > in without said issue fixed. > Are you satisfied with that? Currently I only know from this email there is concern with regard to security but I don't know what it is and how big an impact it can possibly have. I could maybe go dig up that series and try to understand what is the security implication, but it would take a long time and I'm not sure I have the right technical background to make the call. Wei. > Jan