Re: [Xen-devel] Patch question (Hyper-Threading support)

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 28 Mar 2006, at 09:28, Elizeu Santos-Neto wrote:

>         What I meant by HT support was the construction of sibling maps by the
> Guest OS smp-kernel using information about the core ids from the VCPU.
>
>         More precisely, I've found the following comment in the file:
>
>         ./linux-2.6-xen-sparse/arch/xen/kernel/smpboot.c
>
>          /* Currently, Xen gives no dynamic NUMA/HT info. */
>
>         Thus, I modified this file and a couple of other to allow the guest os
> kernel to build the siblings map properly.
Ah, I see. Those platform files (e.g., smpboot.c, mpparse.c. ,,,) are 
all kept in sync with linux-2.6 codebase. We generally don't modify 
them much for Xen and periodically (every couple of months) I pull in 
the latest versions from linux. That's what's happened here.
 -- Keir


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