Re: [Xen-devel] [PATCH V3 1/6]: PVH: basic and header changes, elfnote changes, ...

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Fri, 2012-10-19 at 14:17 +0100, Konrad Rzeszutek Wilk wrote:
> > > +config XEN_X86_PVH
> > > + bool "Support for running as a PVH guest (EXPERIMENTAL)"
> > > + depends on X86_64 && XEN && EXPERIMENTAL
> > > + default n
> > > + help
> > > +    This option enables support for running as a PVH guest (PV guest
> > > +    using hardware extensions) under a suitably capable hypervisor.
> > > +    This option is EXPERIMENTAL because the hypervisor interfaces
> > > +    which it uses are not yet considered stable therefore backwards and
> > > +    forwards compatibility is not yet guaranteed.  If unsure, say N.
> > 
> > Do we really need the kconfig symbol? Why can't we have it always
> 
> Yes for right now. That is to make sure that we can test for regressions
> PV guests on a hypervisor without PVH extensions - or vice-versa:
> PVH hypervisors with an normal PV guest.

Also the "depends on X86_64" bit is currently quite important...

Ian.


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