Re: [PATCH] ACPI: Provide a spec conform OSI interface to the BIOS

[Len Brown <lenb@kernel.org>]

On Fri, 18 Jul 2008, Thomas Renninger wrote:

> On Friday 18 July 2008 09:16:25 am Andi Kleen wrote:
> > Thomas Renninger wrote:
> > > Introduce acpi_osi=windows_false boot parameter
> > > Introduce CONFIG_ACPI_OSI_SPEC_CONFORM config option
> >
> > Why are you adding the CONFIG option? 
> > In what circumstances would one 
> > set it? If anything I think this should be a boot option only for now.
> E.g. for OEMs that do not need to support all BIOSes in the world who 
> can just check for the config option and then know it behaves as written in 
> the spec and being able to support Linux and Windows through the same BIOS.
> 
> But you are right, the compile option only makes sense if acpi_osi="Windows 
> 2006" can be used to simulate a specific Windows OS via boot param, which is 
> not the case.
> 
> But I want the boot param. This one makes very much sense to test BIOSes 
> whether they stick to the ACPI spec and work fine on Linux without Windows 
> simulation. Is that ok?
> 
> > Probably needs more discussion first.
> I always wanted to write down the arguments again, but this takes a lot time.

> Will you accept the boot param only?

I don't see a case for this.

This workaround is needed only if there is a Linux bug.
I'd rather expose and fix that Linux bug than open
the door to sweeping it under the rug and making
Linux harder to maintain.

-Len