[systemd-devel] [PATCH 1/2] detect-virt: detect in best-heuristic order

[Christian Hesse]

Mantas Mikulėnas <grawity at gmail.com> on Wed, 2015/11/04 15:55:
> On Wed, Nov 4, 2015 at 3:52 PM, Lennart Poettering <lennart at poettering.net>
> wrote:
> 
> > On Wed, 04.11.15 15:54, Andrei Borzenkov (arvidjaar at gmail.com) wrote:
> >  
> > > 04.11.2015 00:04, Andrew Jones пишет:  
> > > >afaict, this will fix a regression caused by commit 75f86906c5.
> > > >Where we used to report "kvm" before that patch, without this patch,
> > > >we would only report "qemu".  
> > >
> > > Are you sure it is regression? QEMU is a program (platform) while KVM is
> > > technology. Modern VirtualBox can use KVM as PV interface but it still
> > > remains VirtualBox. QEMU may use KVM as PV interface but it still
> > > remains QEMU.
> > >
> > > Where does it matter? Is anything broken because of this change?  
> >
> > I am pretty sure that vbox should be reported as vbox even if it uses
> > kvm as backend. qemu-kvm should be reported as kvm, and any other qemu
> > as qemu.
> >  
> 
> As I understand it, VirtualBox doesn't use KVM as *backend*; it only
> exposes a KVM-like paravirt interface to *guests*.

It does use kvm since version 5.0.
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