Re: [Xen-ia64-devel] Question - ACPI information

[Alex Williamson <alex.williamson@xxxxxx>]

On Tue, 2006-10-24 at 13:04 +0000, Rodrigo Lord wrote:
> Hi !
> 
> I would like to know how the virtual machines recognize the number
> of  processors in the SMP machine? How the virtual machines visualize
> ACPI  informations of domain 0?

   LSAPIC entries are disabled in the MADT passed to dom0 to match the
number of vCPUs specified (1 by default, otherwise dom0_max_vcpus=).
For domUs, the MADT is entirely fabricated by xen and the number of
enabled LSAPICs match the number specified in the config file for the
domain.  See xen/arch/ia64/xen/dom_fw.c.  Thanks,

        Alex

-- 
Alex Williamson                             HP Open Source & Linux Org.


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