On Mon, 15 Jun 2020 11:31:52 +0200 Pierre Morel <pmorel@xxxxxxxxxxxxx> wrote: > If we use multiple source of interrupts, for example, using SCLP > console to print information while using I/O interrupts, we need > to have a re-entrant register saving interruption handling. > > Instead of saving at a static memory address, let's save the base > registers, the floating point registers and the floating point > control register on the stack in case of I/O interrupts > > Note that we keep the static register saving to recover from the > RESET tests. > > Signed-off-by: Pierre Morel <pmorel@xxxxxxxxxxxxx> > Acked-by: Janosch Frank <frankja@xxxxxxxxxxxxx> > Acked-by: Thomas Huth <thuth@xxxxxxxxxx> > --- > s390x/cstart64.S | 41 +++++++++++++++++++++++++++++++++++++++-- > 1 file changed, 39 insertions(+), 2 deletions(-) Acked-by: Cornelia Huck <cohuck@xxxxxxxxxx>
