Re: [Xen-users] mem= not altering the total memory seen by Xen for ARM

[Julien Grall <julien.grall@xxxxxxx>]

On 12/08/2016 14:36, John Linn wrote:
> > -----Original Message-----
> > From: Julien Grall [mailto:julien.grall@xxxxxxx]
> > Sent: Friday, August 12, 2016 6:12 AM
> > To: John Linn <linnj@xxxxxxxxxx>; xen-users@xxxxxxxxxxxxx
> > Cc: Terry O'Neal <terryo@xxxxxxxxxx>; Stefano Stabellini
> > <sstabellini@xxxxxxxxxx>
> > Subject: Re: [Xen-users] mem= not altering the total memory seen by Xen for
> > ARM
> >
> >
> >
> > On 09/08/2016 20:13, John Linn wrote:
> > > Hi,
> > Hello John,
> >
> > > I’m a newer user of Xen on ARM working with the Xilinx MPSOC platform.
> > >  We want to restrict Xens available memory and the Xen command line
> > > seems to be easy answer.
> > >
> > >
> > >
> > > We see the command line show mem=1G from “xl info”, but the
> > > total_memory does not reflect what we set mem= to.
> > >
> > >
> > >
> > > Does this still work on ARM with device tree and we’re doing something
> > > wrong?
> > The 'mem' option has not been implemented on ARM for moment. I think it was
> > assumed that the user could modify the device tree to limit the memory.
> Thanks Julien, we appreciate your help and all the work you guys do.
>
> It would be really helpful if the user documentation reflected the 
> implementation for ARM rather than the more general case where it's x86. Xen on 
> ARM has a lot of potential and we want to see our customers successful with it.
>
> I realize we can browse the source ourselves also and I'm starting to do that 
> more, but it's not always obvious and our customers don't always want to do 
> that. I also realize we can submit patches to help the documentation :)
We are trying to improve the documentation in general. Any patches and 
comments will be very welcomed in this area :).
Regards,

--
Julien Grall

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