Re: [Xen-devel] enabling VT-x for Dom0?

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Wed, 2011-12-28 at 11:29 +0000, Mohamad Rezaei wrote:
> Thanks for previous helps. I am working on them.
> 
> Is there any way to enable vt-x[EPT] for Dom0.

Not currently although you could checkout Mukesh Rathor's work on
supporting "hybrid" guests (PV guests running in a lightweight HVM
container) since this allows VT-x to be enabled even for PV guests. He
has posted several times to this list over the past year.

Ian.


>  I am trying to do
> something like what bitvisor has done, but using vastly helpful
> functionalities of xen. And I need to ask; would we see any performance
> improvement if we do this?
> 
> I know that virtual memory mechanism like shadow paging will isolate
> dom0, and xen from each other. Implementation of virtual BIOS also will
> help to prevent to use something like INT 15 to pass it through. In the
> other words, Do we have isolation of xen, and Dom0 without even using VT-x?
> 



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