RE: [Xen-ia64-devel] SAL INFO virtualization

["Yang, Fred" <fred.yang@xxxxxxxxx>]

Magenheimer, Dan (HP Labs Fort Collins) wrote:
>>> Sent: 2006年4月3日 15:09
>>> Here are 3 propositions:
>>> 
>>> 1) Only dom0 has access to error records.  Therefore, dom0 should
>>> run on every CPUs.
>> 
>> Just an unrelated comment, Dom0 should always run on every physical
>> processor, which is the base requirement for performance
>> reason. It's not
>> "therefore" result of this specific issue and instead you can
>> take it as the
>> basic assumption for your thought. :-)
>> 
>> Thanks,
>> Kevin
> 
> Hmmm... are you saying that on a 16-processor Xen system,
> domain0 will run as a 16-way SMP guest?
> 
> This isn't the case today with Xen (x86 or ia64) and I
> don't expect that it will work this way in the future
> either.
> 
> Dan
Dan,
I believe Kevin's comment on "Dom0 should always run on every physical 
processor"is intended  Dom0 shouldn't only be limited to run on one or two 
specific logical processors, and shouldn't rule out add in new processors 
runtime
-Fred

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