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 15:48
>> >> >> >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.
>

No, I don't want to include too much unrelated stuff into one 
self-contained patch. Current patch is already complete per its 
current purpose.

>My previous VIOSAPIC patch virtualized LID.

That can be added easily as a separate patch later.

Thanks,
Kevin

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