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Re: Virtualization things.



On Tue, Jul 10, 2007 at 11:43:34AM +0100, Richard W.M. Jones wrote:
> Otto Rey wrote:
> >- Is somebody working on Virtualization (KVM + QEMU) Performance?
> > Maybe Upstream? Some time ago kqemu (qemu accelerator) was released
> > under GPL 2 license. Any plans to include in fedora? Or it is
> > already included/merged under qemu name?
> 
> I can't find anything about kqemu & its status w.r.t. the upstream Linux 
> kernel.

It isn't upstream & not built as part of the QEMU rpms in Fedora. If you
compile / install it from an alternative source, libvirt/virt-manager will
detect it & make use of kqemu if you don't have KVM available

> KVM is in the upstream & Fedora kernels, and uses QEMU code to do device 
> emulation.  Of course, that requires that your hardware supports 
> virtualization, but that will become increasingly common in the next 
> year or two.  For performance issues with KVM you should ask upstream 
> (eg. on kvm-devel mailing list, 
> https://lists.sourceforge.net/lists/listinfo/kvm-devel).
> 
> >- It is posible to include VirtualBox OSE (Open Source Edition
> > - GPL v2) in Fedora repo's? Any problem with Legal Stuff?
> 
> VirtualBox is based on QEMU, right?  Can you tell us what features it 
> has that makes it distinctive?  (I mean in the free version, not 
> interested in proprietary features).

It merely ues QEMU as its device model. Its pretty similar in concept to
VMWare Workstation from what I can see. It tries to provide a self contained
easy to use full virtualized solution. It dosn't need any special hardware
support, but does require custom kernel modules.

> There's a project to abstract away the differences between 
> virtualisation technologies so that, for example, the same command line 
> and graphical tools can be used to manage Xen, QEMU, KVM (so far, others 
> coming later).

It be desirable to support  VirtualBox in libvirt at some point if its
popularity increases / or if there is already demand. It should fit in
with libvirt concepts pretty well based on the cursory examination I've
done of its capabilities.

Dan.
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