Re: [ANNOUNCE] Xen port to Cortex-A15 / ARMv7 with virt extensions

Anup Patel
2011-11-30T04:42:19Z

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Hi all,

I wanted to know how Xen-ARM for A15 will address following concerns:

- How will Xen-ARM for A15 support legacy guest environment like ARMv5 or
ARMv6 ?
- What if my Cortex-A15 board does not have a GIC with virtualization
support ?

Best Regards,
Anup Patel

On Wed, Nov 30, 2011 at 2:59 AM, Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org> wrote:

> On Tuesday 29 November 2011, Stefano Stabellini wrote:
> > Hi all,
> > a few weeks ago I (and a few others) started hacking on a
> > proof-of-concept hypervisor port to Cortex-A15 which uses and requires
> > ARMv7 virtualization extensions. The intention of this work was to find
> > out how to best support ARM v7+ on Xen. See
> >
> http://old-list-archives.xen.org/archives/html/xen-arm/2011-09/msg00013.html
> > for more details.
> >
> > I am pleased to announce that significant progress has been made, and
> > that we now have a nascent Xen port for Cortex-A15. The port is based on
> > xen-unstable (HG CS 8d6edc3d26d2) and written from scratch exploiting
> > the latest virtualization, LPAE, GIC and generic timer support in
> > hardware.
>
> Very nice!
>
> Do you have a pointer to the kernel sources for the Linux guest?
> Since Xen and KVM are both in an early working state right now,
> it would be very nice if we could agree on the guest model to make
> sure that it's always possible to run the same kernel in both
> (and potentially other future) hypervisors without modifications.
>
> Arnd
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