Re: [Xen-users] who comes from kvm?

[Iustin Pop <iusty@xxxxxxxxx>]

On Sun, Feb 13, 2011 at 07:50:35PM -0500, Javier Guerra Giraldez wrote:
> On Sun, Feb 13, 2011 at 7:02 PM, Iustin Pop <iusty@xxxxxxxxx> wrote:
> > The QEMU process
> > still needs to run, and still does runs code on behalf of the VM; yes,
> > CPU is not emulated, memory access is direct, but IIRC even my paravirt
> > drivers, some stuff still goes through QEMU/kvm.
> 
> just the same stuff that goes through Dom0 daemons

No, not at all. You can kill all dom0 daemons, and Xen VMs still run. We
used to rely on this in old Xen versions where xend sometimes got stuck.
What the dom0 daemons are used for is setting up the VM, afterwards they
are not running it. Yes, the drivers in dom0 respond to I/O requests,
but this is different.

regards,
iustin

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