[systemd-devel] [PATCH] systemd-detect-s390-virt: add virtualization detection on s390x

[Thomas Blume]

On Fri, 18 Jul 2014, Dan Horák wrote:

> On Fri, 18 Jul 2014 13:42:21 +0200 (CEST)
> Thomas Blume <Thomas.Blume at suse.com> wrote:
>
>> Ok, thanks for the input.
>> Attached is the new patch.
>
> Thomas, do you know whether the VM00 info always refer to the top-level
> virt, where the Linux guest runs? I've already seen a 2nd level z/VM
> setup, so there were VM00 and VM01 info, but don't remember how they
> were ordered.

I had a look around for this and talked to our s390 guys.
All information pointed to VM00 as top level virtualization.
If you have kvm stacked on z/VM, you should see z/VM as VM01 and kvm as VM00.
See for example:

https://www.mail-archive.com/kvm@vger.kernel.org/msg00625.html

Regards
Thomas