Re: [RFC PATCH 0/3] generic hypercall support

[Avi Kivity]

Chris Wright wrote:
> * Gregory Haskins (ghaskins@xxxxxxxxxx) wrote:
>   
> > Chris Wright wrote:
> >     
> > > * Avi Kivity (avi@xxxxxxxxxx) wrote:
> > >       
> > > > Gregory Haskins wrote:
> > > >         
> > > > > Cool,  I will code this up and submit it.  While Im at it, Ill run it
> > > > > through the "nullio" ringer, too. ;)  It would be cool to see the
> > > > > pv-mmio hit that 2.07us number.  I can't think of any reason why this
> > > > > will not be the case.
> > > > >       
> > > > >           
> > > > Don't - it's broken.  It will also catch device assignment mmio and  
> > > > hypercall them.
> > > >         
> > > Not necessarily.  It just needs to be creative w/ IO_COND
> > >       
> > Hi Chris,
> >    Could you elaborate?  How would you know which pages to hypercall and
> > which to let PF?
> >     
>
> Was just thinking of some ugly mangling of the addr (I'm not entirely
> sure what would work best).
>   

I think we just past the "too complicated" threshold.

--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

--
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/