Re: [PATCH v5 13/13] xen: allow up to 16383 cpus

[Jürgen Groß <jgross@xxxxxxxx>]

On 14.03.24 08:26, Jan Beulich wrote:
> On 14.03.2024 08:20, Juergen Gross wrote:
> > With lock handling now allowing up to 16384 cpus (spinlocks can handle
> > 65535 cpus, rwlocks can handle 16384 cpus), raise the allowed limit for
> > the number of cpus to be configured to 16383.
> >
> > The new limit is imposed by IOMMU_CMD_BUFFER_MAX_ENTRIES and
> > QINVAL_MAX_ENTRY_NR required to be larger than 2 * CONFIG_NR_CPUS.
> That's quite sad - I was really hoping we'd finally end up with a
> power-of-2 upper bound.
Yes, me too.


Juergen