[Qemu-devel] qemu-system-arm: xen-domid not supported for this target

[Qemu-devel] qemu-system-arm: xen-domid not supported for this target

[Alexander B. Ustinov]

Hello, list.

I'm trying to get arm guest running on amd64 dom0 system.

Problem i stumbled upon is that qemu-system-arm seems to have problems 
with -xen-domid.

Without xen it is also reproducible:
> # qemu-system-arm -m 1024M -sd armdisk.img -M cubieboard  -no-reboot 
> -xen-domid 8
> Option xen-domid not supported for this target

Versions of kernel and qemu are from debian unstable:
Linux 4.2.0-1-amd64 #1 SMP Debian 4.2.1-2 (2015-09-27) x86_64 GNU/Linux
QEMU emulator version 2.4.0 (Debian 1:2.4+dfsg-3), Copyright (c) 
2003-2008 Fabrice Bellard

Can it be helped? Or should i do it without xen?


Best wishes,
Alexander.

Re: [Qemu-devel] qemu-system-arm: xen-domid not supported for this target

[Peter Maydell]

On 2 October 2015 at 07:27, Alexander B. Ustinov
<ustinov@physics.spbstu.ru> wrote:
> Hello, list.
>
> I'm trying to get arm guest running on amd64 dom0 system.
>
> Problem i stumbled upon is that qemu-system-arm seems to have problems with
> -xen-domid.
>
> Without xen it is also reproducible:
>>
>> # qemu-system-arm -m 1024M -sd armdisk.img -M cubieboard  -no-reboot
>> -xen-domid 8
>> Option xen-domid not supported for this target
>
>
> Versions of kernel and qemu are from debian unstable:
> Linux 4.2.0-1-amd64 #1 SMP Debian 4.2.1-2 (2015-09-27) x86_64 GNU/Linux
> QEMU emulator version 2.4.0 (Debian 1:2.4+dfsg-3), Copyright (c) 2003-2008
> Fabrice Bellard
>
> Can it be helped? Or should i do it without xen?

Cc'ing the Xen maintainer who may know.

thanks
-- PMM

Re: [Qemu-devel] qemu-system-arm: xen-domid not supported for this target

[Stefano Stabellini]

On Fri, 2 Oct 2015, Peter Maydell wrote:
> On 2 October 2015 at 07:27, Alexander B. Ustinov
> <ustinov@physics.spbstu.ru> wrote:
> > Hello, list.

Hi!


> > I'm trying to get arm guest running on amd64 dom0 system.

Unfortunately it is not possible to run ARM guests on an x86 system with
Xen.


> > Problem i stumbled upon is that qemu-system-arm seems to have problems with
> > -xen-domid.
> >
> > Without xen it is also reproducible:
> >>
> >> # qemu-system-arm -m 1024M -sd armdisk.img -M cubieboard  -no-reboot
> >> -xen-domid 8
> >> Option xen-domid not supported for this target
> >
> >
> > Versions of kernel and qemu are from debian unstable:
> > Linux 4.2.0-1-amd64 #1 SMP Debian 4.2.1-2 (2015-09-27) x86_64 GNU/Linux
> > QEMU emulator version 2.4.0 (Debian 1:2.4+dfsg-3), Copyright (c) 2003-2008
> > Fabrice Bellard
> >
> > Can it be helped? Or should i do it without xen?

You need to drop the -xen-domid option, as Xen cannot be used to run
different architectures. We could print a more useful error message I
guess. QEMU can still be used, doing full emulation of an ARM system.