On Sun, Oct 10, 2021 at 07:39:55PM -0700, Andi Kleen wrote:
> 
> > The connection is quite unfortunate IMHO.
> > Can't there be an option
> > that unbreaks drivers *without* opening up security holes by
> > making BIOS shared?
> 
> That would require new low level APIs that distinguish both cases, and a
> tree sweep.
> 
> 
> -Andi

Presumably bios code is in arch/x86 and drivers/acpi, right?
Up to 200 calls the majority of which is likely private ...

I don't have better ideas but the current setup will just
result in people making their guests vulnerable whenever they
want to allow device pass-through.

-- 
MST

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