[MUST WATCH YOUTUBE VIDEO] [SUCCESS REPORT] Xen VGA Passthrough to Windows 8 Consumer Preview HVM Virtual Machine with Xen 4.2-unstable Changeset 25070 and Linux Kernel 3.3.0 in Ubuntu 11.10 amd64 dom0

Liam Proven lproven at gmail.com
Fri Mar 23 00:24:21 UTC 2012

On 22 March 2012 20:36, Avi Greenbury <lists at avi.co> wrote:
> Liam Proven wrote:
>> On 22 March 2012 15:22, Teo En Ming (Zhang Enming)
>> <ubuntu.fan.2012 at gmail.com> wrote:
>> > Dear compdoc,
>> >
>> > Xen virtualization is still very much alive! As a matter of fact,
>> > Linux Kernel 3.x officially supports Xen Dom0 and DomU.
>> >
>> > I will not be using Linux KVM so there won't be a Youtube video for
>> > it.
>> Just out of curiosity - why not?
>> At the end of the day, both do the same thing: a kernel module uses
>> the CPU's hardware virtualization extensions to run one OS as a guest
>> under the other.
> They do the same thing for some definitions of 'same', but not yours :)
> While KVM *is* a kernel module that essentially makes the Linux kernel
> into a hypervisor, Xen is a layer that sits below the kernel.
> When you install Xen onto a Linux machine, that machine becomes a guest
> of the Xen host; it becomes the dom0, which is an especially privileged
> guest, but it is still running atop Xen and the Linux kernel no longer
> has direct access to the hardware.

Oh really? Nice explanation. I did not realise that. So it is, in
essence, doing much the same as VMware ESX, then?

How does the boot sequence work? Does Xen load first, before the kernel?

Liam Proven • Profile: http://lproven.livejournal.com/profile
Email: lproven at cix.co.uk • GMail/G+/Twitter/Flickr/Facebook: lproven
MSN: lproven at hotmail.com • Skype/AIM/Yahoo/LinkedIn: liamproven
Tel: +44 20-8685-0498 • Cell: +44 7939-087884

More information about the ubuntu-users mailing list