Re: [PATCH] Add DMI quirk for Intel DP55KG mainboard

From: H. Peter Anvin
Date: Wed Jan 06 2010 - 16:32:33 EST


On 01/06/2010 12:22 PM, Len Brown wrote:
>>
>> It's effectively guaranteed if the system is validated with Windows.
>
> today's common industry practice != future guarantee
>
> We can't rely on blind use of _OSI to mean "new enough", since
> it was supported back in W2K era. That means we have to parse
> the OSI strings. But what happens when a BIOS writer decides to
> evaluate _OSI("Windows Future") without evaluating any of the
> old strings we know about? We would disable ACPI reset on such
> a future box?
>

What about using _OSI() with a *blacklist*, i.e. treat _OSI("Unknown
String") as "new enough", whereas _OSI("Windows 2000") is ignored?

-hpa

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