4.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Vasily Gorbik gor@linux.ibm.com
commit 15deb080a6087b73089139569558965750e69d67 upstream.
When loadparm is set in reipl parm block, the kernel should also set DIAG308_FLAGS_LP_VALID flag.
This fixes loadparm ignoring during z/VM fcp -> ccw reipl and kvm direct boot -> ccw reipl.
Cc: stable@vger.kernel.org Reviewed-by: Heiko Carstens heiko.carstens@de.ibm.com Signed-off-by: Vasily Gorbik gor@linux.ibm.com Signed-off-by: Martin Schwidefsky schwidefsky@de.ibm.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/s390/kernel/ipl.c | 1 + 1 file changed, 1 insertion(+)
--- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -779,6 +779,7 @@ static ssize_t reipl_generic_loadparm_st /* copy and convert to ebcdic */ memcpy(ipb->hdr.loadparm, buf, lp_len); ASCEBC(ipb->hdr.loadparm, LOADPARM_LEN); + ipb->hdr.flags |= DIAG308_FLAGS_LP_VALID; return len; }