[CentOS-virt] Xen DomU supoprt in RHEL 7 and the CentOS Plan

Tue May 27 12:04:21 UTC 2014
David Vrabel <david.vrabel at citrix.com>

On 23/05/14 18:58, Konrad Rzeszutek Wilk wrote:
> On Fri, May 23, 2014 at 03:59:14AM -1000, NightLightHosts Admin wrote:
>> +3 XEN!
>> On Fri, May 23, 2014 at 3:56 AM, O'Reilly, Dan <Daniel.OReilly at dish.com> wrote:
>>> +2
>>> -----Original Message-----
>>> From: centos-virt-bounces at centos.org [mailto:centos-virt-bounces at centos.org] On Behalf Of Antony Messerli
>>> Sent: Friday, May 23, 2014 7:49 AM
>>> To: <centos-virt at centos.org>
>>> Subject: Re: [CentOS-virt] Xen DomU supoprt in RHEL 7 and the CentOS Plan
>>> +1 on Xen support, I haven't had time to test on RHEL yet or poke around in the kernel yet, but has all of the Xen support been removed from the kernel?
> It has not been removed, but .. let me go in details.
> You can boot an RHEL7 guest as PV, but there are issues:
>  1). The FB driver has been unset (CONFIG_XEN_FBDEV_FRONTEND) that means you can
>      still do a text-console (in theory).

Is this an interesting use case?  XenServer, for example, doesn't
present a PV frame buffer to any PV guest and I don't recall anyone ever
asking for it.  There are better technologies for graphical remote
access (e.g., remote X over SSH, RDP, VNC...).

>  3). There are also some systemd and udev things missing.

Really?  What? There shouldn't be anything extra for a pure PV guest vs
a PVHVM guest (which RedHat do support).]