Re: [Xen-devel] [PATCH 5/9] ARM: Xen: fix initial build problems:

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Wed, 10 Oct 2012, Ian Campbell wrote:
> On Tue, 2012-10-09 at 20:24 +0100, Dan Magenheimer wrote:
> > > From: Ian Campbell [mailto:Ian.Campbell@xxxxxxxxxx]
> > > Sent: Tuesday, October 09, 2012 9:36 AM
> > > To: Arnd Bergmann
> > > Cc: Jeremy Fitzhardinge; xen-devel@xxxxxxxxxxxxxxxxxxx; Stefano 
> > > Stabellini; Konrad Rzeszutek Wilk;
> > > linux-kernel@xxxxxxxxxxxxxxx; Russell King; 
> > > linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> > > Subject: Re: [Xen-devel] [PATCH 5/9] ARM: Xen: fix initial build problems:
> > > 
> > > On Tue, 2012-10-09 at 16:22 +0100, Arnd Bergmann wrote:
> > > > * The XEN_BALLOON code requires the balloon infrastructure that is not
> > > >   getting built on ARM.
> > > 
> > > I've got patches to enable this, but not for 3.7 so this looks good for
> > > now.
> > > 
> > > > * The tmem hypercall is not available on ARM
> > 
> > [reduced cc list to just us Xen chickens]
> > 
> > Any reason that the tmem hypercall is not available on ARM?
> > At a minimum, it should be available, but always return failure.
> 
> The hypercall is available from a hypervisor point of view, although it
> will return -Esomething since some of the required arch functions are
> still stubs.

We are probably just missing the implementation of HYPERVISOR_tmem_op.

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