[PATCH] KVM: arm64: Consider NUMA affinity when allocating per-CPU stack_page

[Li,Rongqing]

> Li RongQing <lirongqing at baidu.com> wrote:
> >
> > per-CPU stack_page are dominantly accessed from their own local CPUs,
> > so allocate them node-local to improve performance.
> 
> Do you have any performance data to back this up?
> 
> Given that this is only used in the non-VHE case, and that by doing so you have
> left quite a lot of performance on the floor already, I'm even more surprised to
> see the performance argument.
> 

Sorry, I have not setup to test it.

> Furthermore, you don't address the allocation of per-CPU data, which has a
> much larger potential impact, given how the HYP code is structured.
> 

I will add it in V2

Thanks

-LiRongQing