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

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--;
}
}
}