All of lore.kernel.org
 help / color / mirror / Atom feed
From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Stefano Righi <StefanoR@ami.com>
Cc: xen-devel@lists.xensource.com
Subject: Re: Guest physical memory and machine physical memory
Date: Mon, 29 Mar 2010 11:52:25 -0700	[thread overview]
Message-ID: <4BB0F6E9.3020401@goop.org> (raw)
In-Reply-To: <9B4771B4D9FB73498B40311D4E7E8EE5109807EE@atl-ms2.us.megatrends.com>

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?

Thanks,
     J

      reply	other threads:[~2010-03-29 18:52 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-29 12:46 Guest physical memory and machine physical memory Stefano Righi
2010-03-29 18:52 ` Jeremy Fitzhardinge [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4BB0F6E9.3020401@goop.org \
    --to=jeremy@goop.org \
    --cc=StefanoR@ami.com \
    --cc=xen-devel@lists.xensource.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.