Re: [PATCH v2 2/4] KVM: s390: vsie: Fix length of facility list shadowed

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On Tue, 2023-11-07 at 18:11 +0100, Claudio Imbrenda wrote:
> On Tue,  7 Nov 2023 13:31:16 +0100
> Nina Schoetterl-Glausch <nsg@xxxxxxxxxxxxx> wrote:
> 
> [...]
> 
> > -obj-y	+= smp.o text_amode31.o stacktrace.o abs_lowcore.o
> > +obj-y	+= smp.o text_amode31.o stacktrace.o abs_lowcore.o facility.o
> >  
> >  extra-y				+= vmlinux.lds
> >  
> > diff --git a/arch/s390/kernel/facility.c b/arch/s390/kernel/facility.c
> > new file mode 100644
> > index 000000000000..5e80a4f65363
> > --- /dev/null
> > +++ b/arch/s390/kernel/facility.c
> 
> I wonder if this is the right place for this?

I've wondered the same :D
> 
> This function seems to be used only for vsie, maybe you can just move
> it to vsie.c? or do you think it will be used elsewhere too?

It's a general STFLE function and if I put it into vsie.c I'm not sure
that, if the same functionality was required somewhere else, it would be
found and moved to a common location.

I was also somewhat resistant to calling a double underscore function from
vsie.c. Of course I could implement it with my own inline asm...

The way I did it seemed nicest, but if someone else has a strong opinion
I'll defer to that.
> 
> [...]






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