Re: iommu: it could use some documentation

[Andi Kleen]

Ingo Molnar <mingo@xxxxxxx> writes:
> 
> > +	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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/