Re: [PATCH v3 4/4] pc-bios/s390x: Fix reset psw mask

[Cornelia Huck <cohuck@redhat.com>]

On Thu, 5 Dec 2019 11:12:39 +0100
Cornelia Huck <cohuck@redhat.com> wrote:

> On Tue,  3 Dec 2019 08:28:13 -0500
> Janosch Frank <frankja@linux.ibm.com> wrote:
> 
> > We need to set the short psw indication bit in the reset psw, as it is
> > a short psw.
> > 
> > fixes: 9629823290 ("pc-bios/s390-ccw: do a subsystem reset before running the guest")
> > Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
> > ---
> >  pc-bios/s390-ccw/jump2ipl.c | 12 +++++++-----
> >  1 file changed, 7 insertions(+), 5 deletions(-)  
> 
> Thanks, applied (together with a rebuild of the bios images.)

This unfortunately breaks 'make check-qtest-s390x':

   TEST    check-qtest-s390x: tests/boot-serial-test
   TEST    check-qtest-s390x: tests/pxe-test
ERROR - too few tests run (expected 1, got 0)

When I revert this, the rebuild, and "s390x: Properly fetch and test
the short psw on diag308 subc 0/1" (as it exposes the bug this commit
tried to fix), everything passes again. No idea what is wrong, though :(

For now, I've dropped the three patches mentioned above from the
s390-next branch (I plan to send a pull request later). Let's fix this
on top once we figured out whatever went wrong, no need to rush here.