https://bugzilla.kernel.org/show_bug.cgi?id=97141

--- Comment #12 from Rafael J. Wysocki <[email protected]> ---
(In reply to Lv Zheng from comment #8)
> I'm OK with BGRT which is a data table, but for TAD which comes from a
> definition block table, I do have concerns...
> 
> At this early boot time, PCI configuration space may not be accessible.
> Thus some module level code in the ACPI definition block table is also not
> executable.
> Invoking acpi_load_tables() so early causes a very strange software scheme
> in ACPICA.
> ACPICA interpreter has to execute only special AML code and ignore all
> module level code in this early stage and at a late stage, re-execute the
> module level code. This makes ACPICA interpreter implementation very dirty.

I'm not sure I understand your point correctly.

Do you have any specific examples of what may go wrong as a result of this?

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