Re: [Xen-devel] [PATCH RFC v2 4/9] xen/arm: Implement get_maximum_gpfn hypercall for arm

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Thu, 2013-07-04 at 09:09 +0900, Jaeyong Yoo wrote:
> > >
> > > Rather than implementing p2m_get_next_non_used_gpfn, I think we should
> > > keep track of the maximum gpfn, like we do on x86, see:
> > 
> > ISTR Tim wanting to get rid of this concept on x86.
> > 
> > Anything which is walking the P2M should be doing so via iterator based
> > interfaces and not by looping on O...N where N is potentially guest
> > controlled. Not to mention 0...N might be quite sparse.
> > 
> 
> I guess we are now going to implment via iterator?

I think we should, Tim may have some ideas about what such an interface
should look like.


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