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

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

>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.

Thanks,
Kevin

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