Re: [PATCH 4/5] xen/cpupool: Create different cpupools at boot time

[Luca Fancellu]

> On 15 Feb 2022, at 10:48, Juergen Gross <jgr...@suse.com> wrote:
> 
> On 15.02.22 11:15, Luca Fancellu wrote:
>> Introduce an architecture specific way to create different cpupools
>> at boot time, this is particularly useful on ARM big.LITTLE system
>> where there might be the need to have different cpupools for each type
>> of core, but also systems using NUMA can have different cpu pools for
>> each node.
>> The feature on arm relies on a specification of the cpupools from the
>> device tree to build pools and assign cpus to them.
>> Documentation is created to explain the feature.
>> Signed-off-by: Luca Fancellu <luca.fance...@arm.com>
> 
> IIRC I suggested to have the core functionality in common code in order
> to allow using boot time cpupool creation e.g. via commandline for x86,
> too.

Yes, however I think the parser to handle everything by command line would
be huge due to input sanitisation and not easy enough as the DT, however
I see Hyperlaunch has plans to use DT on x86 so I guess it would be ok to make
this feature common once the DT is available also on x86.

Cheers,
Luca

> 
> 
> Juergen
> <OpenPGP_0xB0DE9DD628BF132F.asc>