Question about madt_find_processor_uid() and madt_processor_handler()

[Alex Hung]

On Mon, Jul 12, 2021 at 5:30 AM Zeng, Star <star.zeng at intel.com> wrote:

> Hi,
>
>
>
> About madt_find_processor_uid() and madt_processor_handler(), my
> understanding is that they will find and check uid for processors based on
> Processor object or Device Object (ACPI0007), right?
>
>
>
> For the Device Object (ACPI0007) case, could the codes handle the _UID
> implemented as Method?
>
>
>
>   Device(XXXX) {
>
>     Name(_HID, "ACPI0007")
>
>     Method (_UID) {
>
>       Return (\_SB.XXXX(XXXX, XXXX))
>
> }
>
> …
>
>
>
>
>
> Table 6-189 Device Identification Objects
> _UID Object that specifies a device’s unique persistent ID, or a control
> method that generates it.
>
>
>

Evalucating _UID is handled by acpica, and I believe acpica evaluates name
and method objects equally.



>
>
> Thanks,
>
> Star
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-- 
Cheers,
Alex Hung
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