From f2879a5c9e45e8432d15deea84fdf53586e9949c Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Tue, 1 Jul 2014 12:17:41 +0200 Subject: pc-bios/s390-ccw: store proper subsystem information word POP chapter 17 requires to store a subsystem information word at 184 during IPL. Furthermore bytes 188-191 should be zero. The bootmap might contain data blocks that are written to the first page. We have to write these values after we processed the bootmap and before the final IPL. Signed-off-by: Christian Borntraeger Reviewed-by: Cornelia Huck Signed-off-by: Cornelia Huck --- pc-bios/s390-ccw/s390-ccw.h | 1 + 1 file changed, 1 insertion(+) (limited to 'pc-bios/s390-ccw/s390-ccw.h') diff --git a/pc-bios/s390-ccw/s390-ccw.h b/pc-bios/s390-ccw/s390-ccw.h index 959aed0..2b773de 100644 --- a/pc-bios/s390-ccw/s390-ccw.h +++ b/pc-bios/s390-ccw/s390-ccw.h @@ -50,6 +50,7 @@ void disabled_wait(void); /* main.c */ void virtio_panic(const char *string); +void write_subsystem_identification(void); /* sclp-ascii.c */ void sclp_print(const char *string); -- cgit v1.1