Re: [PATCH] Add I/O hypercalls for i386 paravirt

Andi Kleen
2007-08-22T10:30:17Z

On Wed, Aug 22, 2007 at 01:23:43PM +0300, Avi Kivity wrote:
> Andi Kleen wrote:
> >>I don't see why it's intrusive -- they all use the APIs, right?
> >>
> >
> >Yes, but it still changes them. It might have a larger impact
> >on code size for example.
> >
>
> Only if CONFIG_PARAVIRT is defined.

Which eventually distribution kernels will do.

> And even then, all the performance
> sensitive stuff uses mmio, no?

Not worried about performance, but just impact on code size etc.

-Andi