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Re: [Xen-devel] emulated tsc and frequency info


  • To: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
  • From: Juergen Gross <juergen.gross@xxxxxxxxxxxxxx>
  • Date: Tue, 20 Jul 2010 14:43:13 +0200
  • Cc: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Tue, 20 Jul 2010 05:43:53 -0700
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  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

On 07/20/2010 02:28 PM, Keir Fraser wrote:
On 20/07/2010 12:52, "Juergen Gross"<juergen.gross@xxxxxxxxxxxxxx>  wrote:

with xen 4.0 and xen-unstable I see weird tsc information in my HVM-domain
with PV-driver, if xen chooses to emulate tsc (d->arch.vtsc is set):

correction: only xen 4.0 is affected!
xen-unstable does the scaling correctly.

Is it still a problem with the latest 4.0.1 RC (or tip of xen-4.0-testing)?

Looking at hvm_get_guest_tsc() it should be okay, too.
Sorry for the noise :-(


Juergen

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Juergen Gross                 Principal Developer Operating Systems
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Fujitsu Technology Solutions              e-mail: juergen.gross@xxxxxxxxxxxxxx
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