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From: Paolo Bonzini <pbonzini@redhat.com>
To: Dan Magenheimer <dan.magenheimer@oracle.com>
Cc: James Harper <james.harper@bendigoit.com.au>,
	Keir Fraser <keir@xen.org>,
	xen-devel@lists.xensource.com
Subject: Re: Re: common time reference between domU and dom0
Date: Fri, 10 Dec 2010 22:41:44 +0100	[thread overview]
Message-ID: <4D029E98.2030702@redhat.com> (raw)
In-Reply-To: <94800155-be30-4597-9514-95221e4979c1@default>

On 12/10/2010 09:27 PM, Dan Magenheimer wrote:
> Urk.  Paolo, I hope Redhat isn't using HVMOP_get_time now as a basis
> for pvops time?

No.  I only plan to use it in Windows guests.  That said...

> That was one of the purposes of all the tsc work
> in 4.0 so selecting TSC as the clocksource should have the same
> result (and IIRC the trap is faster than the hypercall).

... this has not been backported to RHEL5 though.

Paolo

  reply	other threads:[~2010-12-10 21:41 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-10  5:23 common time reference between domU and dom0 James Harper
2010-12-10  7:19 ` Keir Fraser
2010-12-10  8:23   ` James Harper
2010-12-10 10:00     ` Keir Fraser
2010-12-10 10:20       ` James Harper
2010-12-10 10:22         ` Paolo Bonzini
2010-12-10 10:45           ` Keir Fraser
2010-12-10 20:27             ` Dan Magenheimer
2010-12-10 21:41               ` Paolo Bonzini [this message]
2010-12-10 10:45         ` Keir Fraser
2010-12-10 10:51           ` Tim Deegan
2010-12-10 20:24           ` Dan Magenheimer
2010-12-10  8:26   ` Henry Pepper
2010-12-10 10:03     ` Keir Fraser

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