[Feature Request] A test for ACPI _REV

[Alex Hung]

It starts with a recent patch by Matthew Garrett:
http://comments.gmane.org/gmane.linux.acpi.devel/74165

I have seen a lot _REV uses for OS detect in many major OEM systems,
including but not limiting to Dell and HP in Matthew's comments. It is
probably a know-how among BIOS community. However, Matthew's patch
will certainly change the game after it gets into kernel.

Today I have receive a feature request as below:
=========================================================
... make sure that we are aware of this when there is a test for _REV
included in our BIOSes.  I'd like to make sure that if _REV is found
in the BIOS to be tested that it at least starts a discussion to
understand what it's doing and if it's the right thing for the system.
=========================================================

I am looking for some discussion and feedback from FWTS community
whether this should be included in FWTS.

Alternatively, it may be possible to modify kernel to generate a
message like _OSI:
    [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
and fwts can try to catch it in klog test, assuming kernel can include
this patch.

-- 
Cheers,
Alex Hung