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Re: [Xen-devel] [PATCH 0 of 5] PV on HVM Xen

from [Jeremy Fitzhardinge] [Permanent Link][Original]
To: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH 0 of 5] PV on HVM Xen
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Tue, 16 Mar 2010 10:41:09 -0700
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Sheng Yang <sheng@xxxxxxxxxxxxxxx>
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On 03/16/2010 10:32 AM, Stefano Stabellini wrote:

Actually I think Ian is right, we can do it without a new hypercall: if
we assume tsc_mode=2 then this simple patch makes the pv clocksource work
fine without any set_tsc_offset(v, 0) in xen:
Can we detect if this patch is present in Xen or not? If not, we may need to go back to having a feature flag. 

    J

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