Re: [Xen-devel] [PATCH 0/2] xen: Allow xen tools to run in guest using 64K page granularity

[Julien Grall <julien.grall@xxxxxxxxxx>]

Hi,

On 25/06/2015 12:23, Ian Campbell wrote:
> On Thu, 2015-06-25 at 11:21 +0100, Wei Liu wrote:
> > On Mon, May 11, 2015 at 12:55:34PM +0100, Julien Grall wrote:
> > > Hi all,
> > >
> > > This small series are the only changes required in Xen in order to run a guest
> > > using 64K page granularity on top of an unmodified Xen.
> > >
> > > I'd like feedback from maintainers tools to know if it might be worth to
> > > introduce a function xc_pagesize() replicating the behavior of getpagesize()
> > > for Xen.
> > Can we start with documenting the ABI (?) for communicating between
> > guests with different page sizes?
> We should certainly make it clearer what things are in terms of "Xen ABI
> page size" vs "the guest's page size" and other things.
Don't we already say somewhere that the page granularity for the 
hypercall (though I haven't found it).
I can send a follow-up to clarify the page granularity for each PV protocol.

Regards,

--
Julien Grall

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