RE: [Xen-ia64-devel][PATCH] Enable SMP on VTI domain.

["Xu, Anthony" <anthony.xu@xxxxxxxxx>]

>From: Tristan Gingold 
>Sent: 2006年5月31日 17:01
>> >I think Xen can
>> >impose lid to the guest firmware.  Things will be a little simpler.
>>
>> I don't catch you, Could you explain in more detail?
>I think lid_2_vcpu is almost useless.  Like in paravirtualized, vcpuid should
>be simply extracted from lid.
>
You mean vcpuid is extracted from machine lid.

It may work for domU, because lsapic table is built by xen.
But for VTI-domain, lsapic table is built by guest firmware, how can
guest firmware get other LP's lid.
So in VTI-domain, we should use vcpuid predefined by XEN and guest firmware.

Another concern is,
If SMP guest is running on a UP platform, vcpus may have same vcpuid.


>Tristan.

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