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Re: [PATCH v6 09/11] xen/x86: Derive topologically correct x2APIC IDs from the policy



On Wed Oct 9, 2024 at 3:53 PM BST, Jan Beulich wrote:
> On 01.10.2024 14:38, Alejandro Vallejo wrote:
> > Implements the helper for mapping vcpu_id to x2apic_id given a valid
> > topology in a policy. The algo is written with the intention of
> > extending it to leaves 0x1f and extended 0x26 in the future.
> > 
> > Toolstack doesn't set leaf 0xb and the HVM default policy has it
> > cleared, so the leaf is not implemented. In that case, the new helper
> > just returns the legacy mapping.
>
> Is the first sentence of this latter paragraph missing an "If" or "When"
> at the beginning? As written I'm afraid I can't really make sense of it.
>
> Jan

It's a statement of current affairs. Could be rewritten as...

   The helper returns the legacy mapping when leaf 0xb is not implemented (as
   is the case at the moment).

Does that look better?

Cheers,
Alejandro



 


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