MacBookPro 5,1

[Jung-uk Kim]

On Tuesday 02 November 2010 05:50 pm, Andriy Gapon wrote:
> on 02/11/2010 22:50 Jung-uk Kim said the following:
> > Yes, I understand.  However, ACPICA is expecting the same size of
> > buffer *including* the optional parts if I am reading the code
> > right.
>
> Hmm, where is ACPICA doing that?

If you scrub ResourceSource, then:

AcpiSetCurrentResources() ->
AcpiRsSetSrsMethodData() ->
AcpiRsCreateAmlResources() ->
AcpiRsGetAmlLength() ->
AcpiRsStructOptionLength()

will return 0 and size of new buffer may be smaller than what we got 
from _CRS.  I may have read it wrong, though. :-/

> I didn't see any connection between what *ACPICA* can return to OS
> in _CRS/_PRS and what OS can pass in _SRS.
>
> > Besides, I don't think there is any harm in doing the right
> > thing. ;-)
>
> I don't think that this is any "righter" than zero-ing out resource
> source description string.  BIOS/firmware can't possibly use that
> for anything meaningful, IMO.

I didn't say it is ever useful.  My point was it may not work for some 
BIOS but I am not sure, that's all.

Jung-uk Kim