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pc-bios/s390-ccw: add boot entry selection to El Torito routine

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If there is no LOADPARM given or '0' specified, then IPL the first
matched entry. Otherwise IPL the matching entry of that number.

Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com>
Signed-off-by: Farhan Ali <alifm@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This commit is contained in:
Eugene (jno) Dvurechenski 2016-04-18 13:45:36 +02:00 committed by Cornelia Huck
parent 82ca394194
commit 7a9762bf89
1 changed files with 6 additions and 1 deletions
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7
pc-bios/s390-ccw/bootmap.c
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@ -655,6 +655,7 @@ static IsoBcSection *find_iso_bc_entry(void)
IsoBcEntry *e = (IsoBcEntry *)sec;
uint32_t offset = find_iso_bc();
int i;
unsigned int loadparm = get_loadparm_index();
if (!offset) {
return NULL;
@ -675,7 +676,11 @@ static IsoBcSection *find_iso_bc_entry(void)
for (i = 1; i < ISO_BC_ENTRY_PER_SECTOR; i++) {
if (e[i].id == ISO_BC_BOOTABLE_SECTION) {
if (is_iso_bc_entry_compatible(&e[i].body.sect)) {
return &e[i].body.sect;
if (loadparm <= 1) {
/* found, default, or unspecified */
return &e[i].body.sect;
}
loadparm--;
}
}
}