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pc-bios/s390x: Initialize machine loadparm before probing IPL devices

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Commit bb185de423 ("s390x: Add individual loadparm assignment to
CCW device") allowed boot devices to be assigned a loadparm value independent
of the machine value, however, when no boot devices are defined, the machine
loadparm becomes ignored. Therefore, let's check the machine loadparm
prior to probing the devices.

Signed-off-by: Jared Rossi <jrossi@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20241114161952.3508554-1-jrossi@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Jared Rossi 2024-11-14 11:19:52 -05:00 committed by Thomas Huth
parent 8c79746811
commit 1056ca1e70
1 changed files with 2 additions and 1 deletions
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3
pc-bios/s390-ccw/main.c
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@ -191,7 +191,7 @@ static void boot_setup(void)
{
char lpmsg[] = "LOADPARM=[________]\n";
if (memcmp(iplb.loadparm, NO_LOADPARM, LOADPARM_LEN) != 0) {
if (have_iplb && memcmp(iplb.loadparm, NO_LOADPARM, LOADPARM_LEN) != 0) {
ebcdic_to_ascii((char *) iplb.loadparm, loadparm_str, LOADPARM_LEN);
} else {
sclp_get_loadparm_ascii(loadparm_str);
@ -316,6 +316,7 @@ void main(void)
css_setup();
have_iplb = store_iplb(&iplb);
if (!have_iplb) {
boot_setup();
probe_boot_device();
}