Re: [kvm-unit-tests PATCH 4/5] s390x: smp: Allocate memory in DMA31 space

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On Fri, 14 Jan 2022 13:50:52 +0100
Nico Boehr <nrb@xxxxxxxxxxxxx> wrote:

> On Fri, 2022-01-14 at 10:02 +0000, Janosch Frank wrote:
> > The store status at address order works with 31 bit addresses so
> > let's
> > use them.
> > 
> > Signed-off-by: Janosch Frank <frankja@xxxxxxxxxxxxx>
> > ---
> >  s390x/smp.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/s390x/smp.c b/s390x/smp.c
> > index 32f128b3..c91f170b 100644
> > --- a/s390x/smp.c
> > +++ b/s390x/smp.c  
> 
> [...]
> 
> > @@ -244,7 +244,7 @@ static void test_func_initial(void)
> >  
> >  static void test_reset_initial(void)
> >  {
> > -       struct cpu_status *status = alloc_pages(0);
> > +       struct cpu_status *status = alloc_pages_flags(1, AREA_DMA31);  
> 
> Why do we need two pages now?

oh, good catch

the next patch has the same issue

I can fix them up when I queue them




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