[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]

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?

-- 
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