kata-containers/s390-tools
1
0
Fork 0
mirror of https://github.com/ibm-s390-linux/s390-tools.git synced 2026-08-05 02:14:52 +00:00
Code Issues Packages Projects Releases Wiki Activity

ipl_tools/chreipl: Make --bootparms work for ECKD re-IPL

Browse Source 
chreipl accepts --bootparms for list-directed IPL, but for ECKD re-IPL the
value was never committed to sysfs, so the requested boot parameters did
not take effect.

Write the boot parameters to the firmware scp_data attribute when
configuring an ECKD re-IPL target. Also validate that the ECKD re-IPL
sysfs interface exists and enforce the maximum supported boot parameter
length up front.

Fixes: 7c24855ba1 ("ipl_tools: add support for list-directed IPL from ECKD DASD")
Reviewed-by: Jan Polensky <japo@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Vasily Gorbik
2026-02-09 00:35:32 +01:00
committed by Jan Höppner
parent 5dc39e87e7
commit 65a891fa35
1 changed files with 8 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
ipl_tools/cmd_chreipl.c
View File

@@ -835,6 +835,12 @@ static void chreipl_eckd(void)
ERR_EXIT("Could not find DASD ECKD device \"%s\"", l.busid);
}
check_exists("reipl/eckd/device", "\"eckd\" re-IPL target");
if (l.bootparms_set && strlen(l.bootparms) > BOOTPARMS_FCP_MAX) {
ERR_EXIT("Maximum boot parameter length exceeded (%zu/%u)",
strlen(l.bootparms), BOOTPARMS_FCP_MAX);
}
if (l.reipl_clear >= 0) {
check_exists("reipl/eckd/clear", "ECKD re-IPL clear attribute");
write_str(l.reipl_clear ? "1" : "0", "reipl/eckd/clear");
@@ -848,6 +854,8 @@ static void chreipl_eckd(void)
write_str(l.bootprog, "reipl/eckd/bootprog");
write_str(l.busid, "reipl/eckd/device");
write_str_optional(l.loadparm, "reipl/eckd/loadparm", l.loadparm_set, "loadparm");
write_str_optional(l.bootparms, "reipl/eckd/scp_data", l.bootparms_set,
"boot parameters");
write_str("eckd", "reipl/reipl_type");
print_eckd(0, "eckd");
}