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Re: [Xen-devel] dom0 and apicid not equal to cpuid

  • To: "Langsdorf, Mark" <mark.langsdorf@xxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
  • Date: Fri, 08 Feb 2008 21:22:40 +0000
  • Delivery-date: Fri, 08 Feb 2008 13:22:27 -0800
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: Achqll4p+tddFVOYTAK5v3h066MrkQAAfHYmAAAa+Yg=
  • Thread-topic: [Xen-devel] dom0 and apicid not equal to cpuid

On 8/2/08 21:19, "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx> wrote:

>> I know some of the code needs to be added to mpparse-xen.c,
>> but it looks like the relevant code was #ifdef'd out in
>> the first place.  Does anyone know why the code to match
>> cpuids to apicids was removed and what would need to be
>> done to restore it?
> Probably most of the things that depend on it are actually managed by Xen
> itself. Possibly this assumption is wrong and the code needs to be re-added,
> or perhaps the problem is actually within Xen?
> Can you point out the specific troubling code in our Linux tree (e.g., the
> specific #if0'ed code, and also the place where the kernel ultimately gets
> confused and the request fails)?

Also, a link to the upstream patch, or area of code in an upstream kernel,
that you think needs to be added would be useful too.

 -- Keir

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