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Re: [Xen-devel] Windows SMP

  • To: "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx>
  • From: "Andrew Lyon" <andrew.lyon@xxxxxxxxx>
  • Date: Tue, 30 Dec 2008 12:41:02 +0000
  • Cc: James Harper <james.harper@xxxxxxxxxxxxxxxx>, Dirk Utterback <dirk.utterback@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, Venefax <venefax@xxxxxxxxx>
  • Delivery-date: Tue, 30 Dec 2008 04:41:31 -0800
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On Tue, Dec 30, 2008 at 11:04 AM, Keir Fraser <keir.fraser@xxxxxxxxxxxxx> wrote:
> On 30/12/2008 10:34, "Andrew Lyon" <andrew.lyon@xxxxxxxxx> wrote:
>>> No it's not a CPUID feature and hence not visible via /proc/cpuinfo. Xen
>>> could print out if it detects the feature, but it doesn't currently. :-)
>> Hmm, that would be very useful.
>> As its not a cpuid feature I guess I will  have to check the Intel
>> manuals for each cpu model, do you know what the feature is described
>> as in Intel documentation?
> In the architecture manual it is known as apic-access virtualisation. I
> don't know whether it would be a headline feature in a processor's data
> sheet.

Can you point me to the code where apic-access virtualisation is used?
Displaying a message might be a nice small improvement for me to
figure out and contribute.

>  -- Keir

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