Re: [PATCH] x86: add /proc/cpuinfo/physical id quirks

[Suresh Siddha]

On Fri, 2009-08-14 at 09:36 -0700, Alex Chiang wrote:
> As systems become larger and more complex, it is not always possible
> to assume that an APIC ID maps directly to a given physical slot.
> 
> From a UI point-of-view, it's nice if the 'physical id' field in
> /proc/cpuinfo matches the silk-screening or labelling on the system
> chassis.
> 
> Add a quirk that allows oddball platforms to ensure that what the kernel
> displays in /proc/cpuinfo matches the physical reality.

Alex, Does it makes sense to add a new entry in /proc/cpuinfo rather
than overloading the 'physical id' by modifying phys_proc_id.

That way, even if there is a mis-match between the bios and the OS fixup
tables, we won't screw up other topology setup etc in the kernel that
are dependent on the phys_proc_id.

thanks,
suresh



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