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Re: [Xen-devel] [PATCH v9] new config option vtsc_tolerance_khz to avoid TSC emulation

To: "Jan Beulich" <JBeulich@xxxxxxxx>
From: Olaf Hering <olaf@xxxxxxxxx>
Date: Thu, 7 Jun 2018 16:49:49 +0200
Cc: Tim Deegan <tim@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Wei Liu <wei.liu2@xxxxxxxxxx>, George Dunlap <George.Dunlap@xxxxxxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>, Marek Marczykowski <marmarek@xxxxxxxxxxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxx, Julien Grall <julien.grall@xxxxxxx>
Delivery-date: Thu, 07 Jun 2018 14:51:22 +0000
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

Am Thu, 07 Jun 2018 08:44:41 -0600
schrieb "Jan Beulich" <JBeulich@xxxxxxxx>:

> The re-use of the field is acceptable only if all existing senders reliably 
> fill zero in there.

How do we know all senders? I just know about write_tsc_info from xen-4.6+.

Olaf

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