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Re: [Xen-devel] [PATCH v2 12/23] vixen: paravirtualization TSC frequency calculation

To: Anthony Liguori <aliguori@xxxxxxxx>
From: Wei Liu <wei.liu2@xxxxxxxxxx>
Date: Mon, 8 Jan 2018 12:04:39 +0000
Cc: Wei Liu <wei.liu2@xxxxxxxxxx>, Anthony Liguori <aliguori@xxxxxxxxxx>, KarimAllah Ahmed <karahmed@xxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Jan H. Schönherr <jschoenh@xxxxxxxxx>, Matt Wilson <msw@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, Roger Pau Monné <roger.pau@xxxxxxxxxx>
Delivery-date: Mon, 08 Jan 2018 12:04:53 +0000
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On Sun, Jan 07, 2018 at 12:28:28PM -0800, Anthony Liguori wrote:
> From: Anthony Liguori <aliguori@xxxxxxxxxx>
> 
> Otherwise when time sharing a physical CPU, the calculation can
> be bogus resulting in time drift for the guest due to improper
> frequency within pvclock.
> 

What clock source is vixen using? What about using the xen pvclock
source patch in the pv-in-pvh shim series?

Wei.

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References:
- [Xen-devel] [PATCH v2 00/23] Vixen: A PV-in-HVM shim
  - From: Anthony Liguori
- [Xen-devel] [PATCH v2 12/23] vixen: paravirtualization TSC frequency calculation
  - From: Anthony Liguori

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