On Thu, 5 Jul 2018 13:25:30 -0400 "Jason J. Herne" <jjhe...@linux.ibm.com> wrote:
> From: "Jason J. Herne" <jjhe...@linux.vnet.ibm.com> > > Move channel i/o setup code out to a separate function. This decouples cio > setup from the virtio code path and allows us to make use of it for booting > dasd devices. > > Signed-off-by: Jason J. Herne <jjhe...@linux.vnet.ibm.com> > Acked-by: Halil Pasic <pa...@linux.vnet.ibm.com> > Reviewed-by: Collin Walling <wall...@linux.ibm.com> > Signed-off-by: Jason J. Herne <jjhe...@linux.ibm.com> > --- > pc-bios/s390-ccw/main.c | 20 +++++++++++++------- > 1 file changed, 13 insertions(+), 7 deletions(-) > > diff --git a/pc-bios/s390-ccw/main.c b/pc-bios/s390-ccw/main.c > index 544851d..63117d1 100644 > --- a/pc-bios/s390-ccw/main.c > +++ b/pc-bios/s390-ccw/main.c > @@ -99,6 +99,18 @@ static void menu_setup(void) > } > } > > +/* > + * Initialize the channel I/O subsystem so we can talk to our ipl/boot > device. > + */ > +static void cio_setup(void) <bikeshed>Call this css_setup?</bikeshed> > +{ > + /* > + * Unconditionally enable mss support. In every sane configuration this > + * will succeed; and even if it doesn't, stsch_err() can handle it. > + */ > + enable_mss_facility(); > +} > + > static void virtio_setup(void) > { > Schib schib;