cvs commit: src/sys/amd64/amd64 identcpu.c src/sys/i386/i386 identcpu.c

[Nate Lawson]

Jung-uk Kim wrote:
> On Monday 17 October 2005 06:00 pm, Brooks Davis wrote:
>>I'm not sure that I care what dmesg says, but I do want an accurate
>>view of our topology presented by the system, not some arbitrary
>>and frankly meaningless CPU count.  If nothing else I care because
>>the two cores share one memory controller.  That may not be all
>>that noticable now for normal application, but I expect it will be
>>once we start seeing 4+ core CPUs.  Telling the user the (somewhat
>>complicated) truth about their hardware is part of "doing it
>>right".
> 
> 
> I believe we have to implement ACPI SRAT (Static Resource Affinity 
> Table) and SLIT (System Locality Information Table) to achieve this.  
> Linux already does this for i386, amd64, and i64:
> 
> http://lxr.linux.no/source/arch/i386/kernel/srat.c
> http://lxr.linux.no/source/arch/x86_64/mm/srat.c
> http://lxr.linux.no/source/arch/ia64/kernel/acpi.c

I'm happy to review any patches to implement this.

-- 
Nate