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xen-ia64-devel

[Xen-ia64-devel] SMP guest and itc

To: xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-ia64-devel] SMP guest and itc
From: Tristan Gingold <Tristan.Gingold@xxxxxxxx>
Date: Thu, 9 Feb 2006 08:32:40 +0100
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Hi,

during boot, linux kernel tries to synchronize itc of all processors.  However 
currently itc is not virtualized:
(XEN) vcpu_set_itc: Setting ar.itc is currently disabled

What should we do ?
a) virtualize ITC
b) para-virtualize ITC (ie, modifying linux kernel)
c) pre-synchronize ITC

I really prefer c).

Tristan.


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