From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Dan Magenheimer <dan.magenheimer@oracle.com>
Cc: "Xen-Devel (E-mail)" <xen-devel@lists.xensource.com>,
Keir Fraser <keir.fraser@eu.citrix.com>
Subject: Re: [PATCH] pvcpuid: mask TSC invariant bit for various circumstances
Date: Thu, 29 Oct 2009 15:07:14 -0700 [thread overview]
Message-ID: <4AEA1212.8080300@goop.org> (raw)
In-Reply-To: <8420df45-56fc-41a1-aa68-cb9a39da235f@default>
On 10/28/09 09:27, Dan Magenheimer wrote:
> 3 = (a) IF processor supports rdtscp instruction:
> rdtsc/p is native, Xen provides TSC_AUX and pvclock info
> (b) IF processor doesn't support rdtscp instruction:
> rdtsc/p is emulated (with degenerate TSC_AUX/pvclock info)
>
How will this interact with operating systems which also want to use
TSC_AUX when rdtscp is available?
J
next prev parent reply other threads:[~2009-10-29 22:07 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-26 23:12 [PATCH] pvcpuid: mask TSC invariant bit for various circumstances Dan Magenheimer
2009-10-27 0:22 ` Keir Fraser
2009-10-27 1:09 ` Dan Magenheimer
2009-10-27 7:31 ` Keir Fraser
2009-10-27 17:03 ` Dan Magenheimer
2009-10-27 17:16 ` Keir Fraser
2009-10-27 20:40 ` Dan Magenheimer
2009-10-27 20:58 ` Keir Fraser
2009-10-27 22:03 ` Dan Magenheimer
2009-10-28 7:16 ` Keir Fraser
2009-10-28 16:27 ` Dan Magenheimer
2009-10-28 16:38 ` Jan Beulich
2009-10-28 16:50 ` Dan Magenheimer
2009-10-28 17:29 ` Keir Fraser
2009-10-29 22:07 ` Jeremy Fitzhardinge [this message]
2009-10-29 22:17 ` Dan Magenheimer
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