At 14:20 +0100 on 19 Apr (1303222807), Keir Fraser
wrote:> On 19/04/2011 14:05, "MaoXiaoyun" <tinnycloud@hotmail.com>
wrote:
>
> > Hi:
> >
> > I''ve been noticed that intel XSAVE is disabled in Xen
source.
> > Does this mean live migration is temporarily not support right now?
> > Is it for buggy reason, will be enable again someday later?
>
> XSAVE doesn''t have anything to do with live migration.
XSAVE was disabled in 22084:ae0cd4e5cc01 because the original XSAVE
support didn''t include saving/restoring XSAVE contexts (i.e. it broke
live migration). The changeset that added that support didn''t
re-enable
xsave. :(
The attached patch is the missing change to re-enable it by default
(totally untested).
Cheers,
Tim.
--
Tim Deegan <Tim.Deegan@citrix.com>
Principal Software Engineer, Xen Platform Team
Citrix Systems UK Ltd. (Company #02937203, SL9 0BG)
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