Re: [Xen-users] Why HVM?

Felix Kuperjans
Fri, 27 Aug 2010 10:33:46 -0000

Hi Jonathan,

The only big advantage is that customers can install operating systems
that do not support pv operation (e.g. Windows). Some small advantages
like using own GRUB or kernels can be achieved in pv environment, too
(pvgrub, pygrub), but those hosters probably don''t enable that for pv
VPS.
Another little point is that not all HVM features are available for pv
guests, especially with pv_ops guest and host kernels (for example: USB
passthrough, PCI / VGA passthrough; the first two not yet with pv_ops
kernels, VGA passthrough is always only available for HVMs). But as long
as you don''t want to offer physical hardware to your clients, this
doesn''t matter for VPS hosting.

Probably I missed an important point, but AFAIK there is no advantage of
having a Linux server system in a HVM instead of a PV VM.

Felix

Am 27.08.2010 08:41, schrieb Jonathan Tripathy:
> Hi Everyone,
>
> I''ve noticed some VPS hosting companies offering a Xen
"HVM" option.
> What are the advantages of a Linux HVM VPS over a PV one?
>
> Many Thanks
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users