Re:

[Marcelo Tosatti <mtosatti@redhat.com>]

On Mon, Apr 14, 2014 at 05:59:05PM -0700, Marcus White wrote:
> Hello,
> A friendly bump to see if anyone has any ideas:-)
> 
> Cheers!
> 
> On Sun, Apr 13, 2014 at 2:01 PM, Marcus White
> <roastedseaweed.k@gmail.com> wrote:
> > Hello,
> > I had some basic questions regarding KVM, and would appreciate any help:)
> >
> > I have been reading about the KVM architecture, and as I understand
> > it, the guest shows up as a regular process in the host itself..
> >
> > I had some questions around that..
> >
> > 1.  Are the guest processes implemented as a control group within the
> > overall VM process itself? Is the VM a kernel process or a user
> > process?

User process.

> > 2. Is there a way for me to force some specific CPU/s to a guest, and
> > those CPUs to be not used for any work on the host itself?  Pinning is
> > just making sure the vCPU runs on the same physical CPU always, I am
> > looking for something more than that..

Control groups.

> > 3. If the host is compiled as a non pre-emptible kernel, kernel
> > process run to completion until they give up the CPU themselves. In
> > the context of a guest, I am trying to understand what that would mean
> > in the context of KVM and guest VMs. If the VM is a user process, it
> > means nothing, I wasnt sure as per (1).

What problem are you trying to solve?