Re: [PATCH][RESEND] RE: [Xen-ia64-devel] [PATCH] Add support to physdev_ops

[Tristan Gingold <Tristan.Gingold@xxxxxxxx>]

Le Vendredi 21 Avril 2006 09:41, Tian, Kevin a écrit :
> From: Tristan Gingold [mailto:Tristan.Gingold@xxxxxxxx]
>
> >Sent: 2006年4月21日 15:43
> >
> >Le Vendredi 21 Avril 2006 09:35, Tian, Kevin a écrit :
> >> From: Tristan Gingold [mailto:Tristan.Gingold@xxxxxxxx]
> >>
> >> >Sent: 2006年4月21日 15:38
> >> >
> >> >Le Vendredi 21 Avril 2006 09:30, Tian, Kevin a écrit :
> >> >> From: Tristan Gingold [mailto:Tristan.Gingold@xxxxxxxx]
> >> >>
> >> >> >Sent: 2006年4月21日 15:01
> >> >> >
> >> >> >Le Vendredi 21 Avril 2006 05:29, Tian, Kevin a écrit :
> >> >> >Just a comment: why LID is not virtualized?
> >> >> >This is required as soon as we want to do VCPU migration!
> >> >>
> >> >> Yes, LID needs to be virtualized. Shouldn't that be included in
> >> >> your guest SMP patch?
> >> >
> >> >LID is not currently virtualized on dom0 because of IOSAPIC.
> >> >LID is virtualized on domU.
> >>
> >> Not sure why IOSAPIC makes difference to dom0/domU. Could
> >> you elaborate?
> >
> >DomU has no IOSAPIC!
>
> OK, do you mean that LID can't be virtualized before this patch
> where dom0 owns IOSAPIC and thus must have to know physical
> LID? If that's case, after this patch is accepted in, you can add same
> logic into dom0.
I really think it is better if you provide complete patch.

My previous VIOSAPIC patch virtualized LID.

Tristan.



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