lkml.org 
[lkml]   [2011]   [Jul]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [Xen-devel] [PATCH] xen: update machine_to_phys_order on resume
>>> On 14.07.11 at 12:26, Olaf Hering <olaf@aepfle.de> wrote:
> On Wed, Jul 13, Jan Beulich wrote:
>
>> >>> Ian Campbell <Ian.Campbell@citrix.com> 07/13/11 11:12 AM >>>
>> >It's not so much an objection to this patch but this issue seems to have
>> >been caused by Xen cset 20892:d311d1efc25e which looks to me like a
>> >subtle ABI breakage for guests. Perhaps we should introduce a feature
>> >flag to indicate that a guest can cope with the m2p changing size over
>> >migration like this?
>>
>> Indeed - migration was completely beyond my consideration when
>> submitting this. A feature flag seems the right way to go to me.
>
> I will prepare a patch for a new feature flag.

Let me fold this into the feature handling change patch I'm close
to submit - without those changes I don't think a guest kernel would
have a way to actually announce its capability.

Jan



\
 
 \ /
  Last update: 2011-07-15 10:35    [W:1.755 / U:0.144 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site