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

To: "Alex Williamson" <alex.williamson@xxxxxx>, "Tristan Gingold" <tgingold@xxxxxxx>
Subject: RE: [Xen-ia64-devel] Time for hybrid virtualization?
From: "Xu, Anthony" <anthony.xu@xxxxxxxxx>
Date: Tue, 22 Jan 2008 10:30:37 +0800
Cc: xen-ia64-devel <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
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Thread-topic: [Xen-ia64-devel] Time for hybrid virtualization?
Alex Williamson wrote:
> On Fri, 2008-01-18 at 07:24 +0100, Tristan Gingold wrote:
>> Hi,
>> one more point: in the very early time, Xen/ia64 was able to run an
>> unmodified linux kernel as dom0.  It was simply privified (either
>> during installation or at loading time).  Most of the code is still
>> here. 
>> So we have a possible backup for non-VT processor.
> Hi Tristan,
>   Good point, Peter Chubb has had some pretty good results from his
> "after burning" techniques iirc.  Thanks,

Hi Alex,
        I'm a little confused by hybrid mode for IA64.
If all priviledged instructions are emulated by VT, 
Seems we don't need to modify linux kernel. Other modifications except
privileged instructions
are not performance critical. We can remove it.


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