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Re: [Xen-ia64-devel] Time for hybrid virtualization?

To: Alex Williamson <alex.williamson@xxxxxx>
Subject: Re: [Xen-ia64-devel] Time for hybrid virtualization?
From: tgingold@xxxxxxx
Date: Thu, 17 Jan 2008 10:19:48 +0100
Cc: xen-ia64-devel <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
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here are my random thoughts:

* First, I am all for supporting dom0 VTi (as well as dom0 PV).  This should
  be an intermediate step.  Intel did that in the past, although I am not
  sure it was fully virtualized (what about GFW ?)

* Building a dom0 vti means porting backend, balloon and all other drivers to

* What about performance on Montecito ?  If Montecito Vti is ~55% of Montvale,
  I'd prefer to keep PV.

* Do we want to abandon PV domains ?  Siemens people may still use them.  I am
  not sure there is a large gain in abandoning linux dom0 PV but keeping
  linux domU PV.


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