From mboxrd@z Thu Jan 1 00:00:00 1970 From: George Dunlap Subject: Re: [RFC PATCH 0/3] Xen hvm saving improvements Date: Mon, 16 Dec 2013 10:32:35 +0000 Message-ID: <52AED6C3.2050308@eu.citrix.com> References: <1387160259-9638-1-git-send-email-andrew.cooper3@citrix.com> <1387187061.20076.30.camel@kazak.uk.xensource.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1387187061.20076.30.camel@kazak.uk.xensource.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: Ian Campbell , Andrew Cooper Cc: Keir Fraser , Jan Beulich , Don Slutz , Xen-devel List-Id: xen-devel@lists.xenproject.org On 12/16/2013 09:44 AM, Ian Campbell wrote: > On Mon, 2013-12-16 at 02:17 +0000, Andrew Cooper wrote: >> This series is *very* RFC at the moment - it is only compile tested. I would >> very much appreciate review on the design. (and I shall see about sorting out >> some dev testing tomorrow) >> >> The ultimate purpose is to fix that the fact that >> XEN_DOMCTL_gethvmcontext_partial is very unreliable at providing the correct >> subset of information. >> >> All the changes are supposed to be internal to Xen. There should be no >> difference at all to the result of XEN_DOMCTL_gethvmcontext (which can be used >> as a useful dev test for the validity of the changes). >> >> George: As for whether this is intended for 4.5, I have no idea. On the one >> hand, it is fixing a hypercall which doesn't function correctly, but on the >> other hand, it is a very large and complicated set of changes relevant to >> migration. Then again, the majority of the changes were largely mechanical, >> and there is a simple test to prove whether there are bugs or not. I shall >> defer to others for comments on the risk/rewards of this series. > IMHO this is obviously not 4.4 material at this stage. Apart from > anything else we've been managing to release with these short comings > for many years. Indeed. -George