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

[Chris Wright]

* 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).
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