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

Mon Sep 7 15:42:10 UTC 2015
Karel Hendrych <k+centosvirt at karlos.cz>

Hi, spot on!


On 6.9.2015 12:56, Pasi Kärkkäinen wrote:
> 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
>
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