Re: [Xen-devel] Xen on ARMv8

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Thu, 2013-12-05 at 20:21 +0530, Vijay Kilari wrote:
> Hi Ian,
> 
> Thanks for the information
> 
>  I was successful to boot Xen on our ARMv8 simulator to some extent,
> but facing following issues:
> 
> 1) With Stable 4.3 version, Xen boots, but fails in ctxt_switch_from()
>  call from schedule_tail().
>     This happens to be because it does not support 64-bit guest. I was
> using 64-bit guest

4.3 is probably not the best option for bringing up a new platform TBH.

> 2) I see that staging branch has support for 64-bit guest, but it
> fails to boot completely.
>     I see continuous IRQ 37 which is not seen with stable version

That's pretty strange. What is IRQ37 in your system?

I know that Julien and Stefano are looking at some interrupt stuff, in
particular there was a patch series way back in June which is currently
been reworked titled "Fix multiple issues with the interrupts on ARM",
of which "Only enable physical IRQs when the guest asks" sounds like it
might be relevant given the symptom you describe.

Ian.

> 
> Any comments?
> 
> Regards
> Vijay
> 
> 
> On Fri, Nov 29, 2013 at 4:19 PM, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
> > On Fri, 2013-11-29 at 13:20 +0530, Vijay Kilari wrote:
> >> Hi,
> >>
> >>    I want to try Xen on ARMv8 Simulator.
> >> Can you please provide guidance?. I am looking for
> >> information about sources, build and procedure to
> >> launch Xen on ARMv8
> >
> > http://wiki.xen.org/wiki/Xen_ARM_with_Virtualization_Extensions is the
> > place to start from.
> >
> > Ian.
> >



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