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Re: [Xen-devel] HVM initiative

from [Leendert van Doorn]

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To:	John Que <qwejohn@xxxxxxxxx>
Subject:	Re: [Xen-devel] HVM initiative
From:	Leendert van Doorn <leendert@xxxxxxxxxxxxxx>
Date:	Wed, 18 Jan 2006 07:47:21 -0500
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# I had noticed that there is a mrecurial repository for a unified interface
# for Vt-x and AMD svm in:
#  http://xenbits.xensource.com/ext/xen-unstable-hvm.hg
# 
#  HVM stands for "Hardware virtual machine", and it is an
#  interface that abstracts away from the x86/x86_64 CPU specifics.

In essence, HVM is 1) a refactoring of Intel's vmx code into vendor specific
and common code, 2) the introduction of a simple indirection to support
Intel's VT-x and AMD's SVM technology. 

The nice thing about the HVM tree is that from a user-level progeamming
perspective (xend, config files, disk images) there is no difference
between VT-x and SVM.

I did a brief presentation at the Xen summit this week on HVM. The slides
should become available from the xensource site at the end of this week.

        Leendert


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