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Re: [Xen-devel] RE: Solaris and PVRDTSCP

To: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>, Paul Durrant <Paul.Durrant@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] RE: Solaris and PVRDTSCP
From: Keir Fraser <keir.xen@xxxxxxxxx>
Date: Fri, 01 Jul 2011 19:04:16 +0100
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Thread-topic: [Xen-devel] RE: Solaris and PVRDTSCP
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On 01/07/2011 18:51, "Dan Magenheimer" <dan.magenheimer@xxxxxxxxxx> wrote:

>>   Clearly future versions of the Solaris kernel should revise this check but
>> to allow this kernel to
>> enable PV drivers I was wondering what sort of workaround could be done. My
>> current thoughts are along
>> the lines of disabling the extra CPUID leaf if tsc_mode is <
>> TSC_MODE_PVRDTSCP.
> 
> This seems reasonable.  The info on that leaf could be useful in other
> modes, but likely hasn't been.

Tbh I'm fine with this as well, on the understanding that it may end up
having to be fixed the hard way (explicit max_leaf) if we add anything more
to the hypervisor cpuid space.

 -- Keir



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