Ingo Molnar <mingo@elte.hu> writes:
quoted text
> 
> > +	iommu=		[x86]
> > +		off
> > +		force
> > +		noforce
> > +		biomerge
> > +		panic
> > +		nopanic
> > +		merge
> > +		nomerge
> > +		forcesac
> > +		soft
> 
> these are mostly quirks to get boards booting

Actually no. Except perhaps for iommu=soft none of them is related
to any  hardware issues. They all tune various performance trade offs
and were supplied for performance tuning originally.

-Andi
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