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Re: [Xen-devel] Guest physical memory and machine physical memory

To: Stefano Righi <StefanoR@xxxxxxx>
Subject: Re: [Xen-devel] Guest physical memory and machine physical memory
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Mon, 29 Mar 2010 11:52:25 -0700
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On 03/29/2010 05:46 AM, Stefano Righi wrote:
Guest physical memory and machine physical memory

How is is possible to translate in dom0 guest physical memory to machine physical memory?

I assume that XEN is making use of EPT in an Intel based system.

PV domains do not (currently, at least) make use of EPT, so it will play no part in pseudo-physical to machine physical address translation. There are numerous ways of doing this conversion; the appropriate one depends on what you're trying to do. In many cases it will happen automatically in the correct places if you're using the appropriate kernel APIs.

Which dom0 kernel are you using (pvops based?).

What problem are you trying to solve?


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