Re: [Xen-devel] virtualization Android OS + XEN.

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

One thing to watch out for is whether the bootloader (I am guessing
u-boot) boots in HYP mode, SVC mode or secure SVC mode.

HYP mode is what we want.
From secure SVC mode we can go into HYP mode, so that would still be OK.
If u-boot boots the platform in non-secure SVC mode, then Xen cannot run
on it.


On Fri, 8 Aug 2014, anshul makkar wrote:
> Hi Julien,
> 
> Thanks for the information.
> 
> I am looking for Cubietruck or Cubieboard 2 with Allwinner A20
> processor but at present its not available in Germany. Any information
> about support/testing of XEN on A20-OLinuXino board
> (https://www.olimex.com/Products/OLinuXino/A20/A20-OLinuXino-MICRO-4GB/open-source-hardware),
> as I am planning to buy it as an alternative to Cubieboard. If at
> present XEN support is not therefor OLinuXindo, do you see any issues
> in supporting it ?
> 
> Thanks
> Anshul Makkar
> 
> On Thu, Aug 7, 2014 at 4:01 PM, Julien Grall <julien.grall@xxxxxxxxxx> wrote:
> > Hello,
> >
> > On 08/07/2014 10:44 AM, anshul makkar wrote:
> >> Thanks Leonardo and Stefano.
> >>
> >> The information you shared is really helpful to get me started and get
> >> basic understanding of where Xen stands in its support for ARM.
> >>
> >> Below is my understanding, request your help to correct me if I am wrong.
> >>
> >> 1) XEN support for the ARM processor where hardware virtualization is
> >> not supported is not there.
> >>
> >> 2) Presently XEN port has been tested  on the following cards.
> >>
> >>   * The Cortex A15 Real-time System Model's provided by ARM
> >>   * A Cortex-A15 Processor running on the Versatile Express
> >>   * The Arndale board
> >>   * The Calxeda ECX-2000 (aka Midway) server
> >>   * Allwinner A20/A31 boards
> >
> > Porting Xen to a new board it's only a matter of a hundred lines if your
> > platform support virtualization.
> >
> >> I have Odroid Cortex A9 board, which doesn't have hardware
> >> virtualization. So for sure XEN can't be ported on that.
> >>
> >> Any idea or test results for Cortex A15 board (ODroidXU3 ) provided by
> >> ODroid. Whether this board is supported or not ?
> >
> > There is some on-going work to upstream support for ODroid XU.
> >
> > You can give a look here:
> >
> > http://lists.xen.org/archives/html/xen-devel/2014-07/msg03363.html
> >
> >> Please can you share some other board models that are cheap and
> >> supported by XEN ARM. What I have found on net is that all boards having
> >> Cortex A15 and hardware virtualization support, so that they are
> >> compatible with XEN, are quite expensive.
> >
> > The Cubietruck is supported by Xen. IIRC, the price is less 100$.
> >
> > Regards,
> >
> > --
> > Julien Grall
> 
> 
> 
> -- 
> Thanks
> Anshul Makkar
> www.justkernel.com
> http://www.linkedin.com/groups/Just-Kernel-3033180
> 

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