From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dario Faggioli <dario.faggioli@citrix.com>
Subject: Re: High Level Design - OPW project "CPU/RAM/PCI
 diagram tool"
Date: Wed, 29 Oct 2014 18:57:59 +0100
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To: Rita Sinha <rita.sinha89@gmail.com>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>, Xen-devel <xen-devel@lists.xen.org>
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On Fri, 2014-10-17 at 08:55 +0530, Rita Sinha wrote:
>=20
> Reading number of vcpus, Numa nodes and the quantity of RAM attached
> to each NUMA node is available from BIOS or from virtual filesystem
> interfaces like sysfs and proc but BIOS makes more sense since in a
> virtual enviroment(dom0), some of this information is no longer
> accurate.
>=20
Indeed they are inaccurate in dom0.

However, what does it mean to read these information from the BIOS? I
mean, what calls/services that can be invoked from within dom0 are we
talking about? How does that differ from asking the same to Xen?

Regards,
Dario

--=20
<<This happens because I choose it to happen!>> (Raistlin Majere)
-----------------------------------------------------------------
Dario Faggioli, Ph.D, http://about.me/dario.faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)


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