On 7/23/20 3:17 AM, Stefan Raspl wrote:
> I could imagine writing a simplistic tool
> that displays all virtualization levels down to the CEC, with the potential to
> extend it in the future.

Hi, Stefan,

I was thinking more in terms of command line switches that determine
what should be returned. For example:
cmdname --guest Would return the name of my running guest
cmdname --host  Would return the name of the z/VM or KVM host.
cmdname --lpar  Would return the name of the LPAR.
cmdname --cec   Would return the name of the CEC. Or CPC, since I think
that's the current IBM name.

And possibly, something like:
cmdname --all   Which would return the names of all these things, possible
as "name=value" pairs.

There's already the systemd-detect-virt command to tell you what
hypervisor is in use, so that wouldn't be needed. I can't say for sure
if many people would be interested in finding out they're running 6
layers of virtualization deep and what each of those is. If someone does
want that, they should speak up.

I believe something like this would allow for easy scripting by system
administrators. Of course, others may have differing opinions.


Mark Post

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