Re: [CentOS-virt] libvirt, xen PV, qemu-system-i386, root user

On Sun, Sep 06, 2015 at 09:08:50AM +0200, Karel Hendrych wrote:

Hi, after migrating to libvirt/libxl according to:

Hi,

https://wiki.centos.org/HowTos/Xen/Xen4QuickStart/Xen4Libvirt

I've noticed that my Xen PV domains are being launched by qemu-system-i386 running under root privileges.

I am wondering why is this? Previously no qemu process was used.

If qemu is needed for some reason, are there any guidelines for non-root operation?

In general qemu is used for the following purposes:

- for certain domU disk backend types (image files), and/or if there's no blktap driver in dom0 kernel. - domU graphical console (PVFB) VNC server, if it's enabled for the domU.

-- Karel Hendrych

-- Pasi