| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 30/49] s390/ipl: ensure loadparm valid flag is set | Date | Tue, 17 Apr 2018 17:59:09 +0200 |
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4.14-stable review patch. If anyone has any objections, please let me know.
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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 @@ -799,6 +799,7 @@ 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; }
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