Re: [PATCH 0/7] KVM: Kernel-based Virtual Machine

[Anthony Liguori <aliguori@us.ibm.com>]

Avi Kivity wrote:
> Andi Kleen wrote:
> > Avi Kivity <avi@qumranet.com> writes:
> >
> >  
> > > The following patchset adds a driver for Intel's hardware 
> > > virtualization
> > > extensions to the x86 architecture.  The driver adds a character device
> > > (/dev/kvm) that exposes the virtualization capabilities to 
> > > userspace.  Using
> > > this driver, a process can run a virtual machine (a "guest") in a fully
> > > virtualized PC containing its own virtual hard disks, network 
> > > adapters, and
> > > display.
> > >
> > > Using this driver, one can start multiple virtual machines on a 
> > > host.  Each
> > > virtual machine is a process on the host; a virtual cpu is a thread 
> > > in that
> > > process.  kill(1), nice(1), top(1) work as expected.
> > >     
> >
> > Where is the user space for this? Is it free?   
>
> I have to go through the motions of creating a sourceforge project for 
> this and uploading it.  And yes, it is free.

Don't even bother creating a project.  Just submit the patches back to 
QEMU.  There's been a lot of discussion about this functionality within 
QEMU.  There's no reason to fork QEMU yet again (Xen has given up and is 
now maintaining a patch queue).  In this case, there's no reason why you 
would even need a patch queue.

Regards,

Anthony Liguori

> > I suppose you need a device model. Do you use qemu's?
> >   
>
> Yes.  I can't imagine anyone doing that work from scratch (Xen also 
> uses qemu).

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