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RE: [Xen-devel] Does dom0 see all physical processors? (RE: [Xen-ia64-de

To: "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>
Subject: RE: [Xen-devel] Does dom0 see all physical processors? (RE: [Xen-ia64-devel] SAL INFO virtualization)
From: "Tian, Kevin" <kevin.tian@xxxxxxxxx>
Date: Tue, 4 Apr 2006 15:40:34 +0800
Cc: "Magenheimer, Dan \(HP Labs Fort Collins\)" <dan.magenheimer@xxxxxx>, Tristan Gingold <Tristan.Gingold@xxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
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Thread-topic: [Xen-devel] Does dom0 see all physical processors? (RE: [Xen-ia64-devel] SAL INFO virtualization)
>From: Keir Fraser [mailto:Keir.Fraser@xxxxxxxxxxxx]
>Sent: 2006年4月4日 15:26
>On 4 Apr 2006, at 03:17, Tian, Kevin wrote:
>> Then consider your question about a large box with many processors.
>> How about the real environment? Is it the case to provide a 16-way
>> box, or a 16-way NUMA box? I prefer to the latter. If it's a NUMA box,
>> dom0 sees physical ACPI table and can be configured as NUMA
>This is a model we must support if we are to have domain0 handle other
>processor-related ACPI activities (e.g., power management). The power
>information and available settings won't make much sense to the user
>unless there's an equivalence between VCPUs and PCPUs for domain0.
>  -- Keir

Yes, and thanks for making it clearer. (Originally I only came up
performance reason for this model.)


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