Re: Does Xen dom0 count as a VM?

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On 7/19/23 09:50, Daniel P. Berrangé wrote:
On Wed, Jul 19, 2023 at 10:12:07AM +0000, Sergio Gelato wrote:
Does this project share the view expressed in
https://github.com/systemd/systemd/issues/28113#issuecomment-1621986461
that "when it comes to systemd's PoV xen dom0 is not a VM. i.e. the VM
that owns the hardware is not a VM in our eyes"?

That is correct. Domain 0 in a Xen-like hypervisor is special, it
is the equivalent of the Lnux host OS in KVM world and clearly
should not be considered a VM.

The libvirt libxl driver shows 'Domain-0' in the output of 'virsh list' and does allow some operations like changing vcpu count and memory ballooning, but most operations like shutdown, reboot, save, migrate, etc are obviously not supported.

Regards,
Jim





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