From mboxrd@z Thu Jan 1 00:00:00 1970 From: George Dunlap Subject: Re: 4.3 Planning: Taking stock Date: Wed, 23 Jan 2013 17:10:30 +0000 Message-ID: <51001986.7020301@eu.citrix.com> References: <5100253A02000078000B8D0A@nat28.tlf.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <5100253A02000078000B8D0A@nat28.tlf.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: Konrad Rzeszutek Wilk , Stefano Stabellini , Ian Campbell , "xen-devel@lists.xen.org" List-Id: xen-devel@lists.xenproject.org On 23/01/13 17:00, Jan Beulich wrote: >>>> On 23.01.13 at 17:52, George Dunlap wrote: >>> * Xen EFI feature: dom0 able to make use of EFI run-time services >>> >> Daniel Kiper is already working on this, but has just started. The issue >> (as I understand it) is that if there are systems where the ACPI tables are >> only discoverable via EFI, then Xen+pvops will not be able to boot if pvops >> doesn't have EFI run-time support. The following version of Xen won't come >> out until probably Q2 2014, and won't hit distros probably until 6 months >> after that. >> >> Given that, what do we think is the likelihood of such systems cropping up >> in that timeframe? If the answer is anything other than "very low", I >> think that as a strategic measure, this one is probably important enough to >> slip the schedule a little bit if necessary. > Except that this ought to be marked (external) in the first place: > The hypervisor support is all there (otherwise our kernels wouldn't > have been successfully booting on EFI for well over a year), and > hence this work shouldn't really have any impact on the schedule. Ah, right -- sorry, I misunderstood the situation. As long as the Xen side is there to use as soon as the functionality is ready, I think we're probably fine. > The one feature here that requires work in our tree is to be able > to boot via grub.efi (irrespective of how little I personally like that); > I'm not sure Daniel was also planning to look into that part. Do you think not having this for 4.3 will be a potential problem for Xen? -George