And in fact, some BIOS vendors purposely run their code through an
obfuscator which changes everything to things like ABC9 and XYZ4 or
C001, C002, etc.
> -----Original Message-----
> From: [email protected] [mailto:acpi-devel-
> [email protected]] On Behalf Of Brown, Len
> Sent: Monday, July 25, 2005 10:02 PM
> To: Bill Davidsen; Linux Kernel Mailing List
> Cc: [email protected]
> Subject: [ACPI] RE: ACPI oddity
>
> >On a HT system, why does ACPI recognize CPU0 and CPU1, refer
> >to them as such in dmesg
>
> This is the Linux CPU number. ie the namespace where 0
> is the boot processor and the others are numbered in
> the order that they were started.
>
> > and then call them CPU1 and CPU2 in
> >/proc/acpi/processor?
>
> These are arbitrary device identifiers written
> by the BIOS developer and foolishly advertised
> to the user by Linux. The BIOS writer could have
> also called them ABC9 and XYZ4 and it would be
> equally valid.
>
> We're planning to get rid of all the ACPI stuff
> in /proc and move to sysfs. At that time we'll
> use device identifies that are deterministic,
> like cpu%d that /sys/devices/system uses today.
>
> cheers,
> -Len
>
>
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