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-rw-r--r--pc-bios/s390-ccw/bootmap.c16
-rw-r--r--pc-bios/s390-ccw/bootmap.h2
2 files changed, 12 insertions, 6 deletions
diff --git a/pc-bios/s390-ccw/bootmap.c b/pc-bios/s390-ccw/bootmap.c
index e39e67e07b..e974350b6f 100644
--- a/pc-bios/s390-ccw/bootmap.c
+++ b/pc-bios/s390-ccw/bootmap.c
@@ -183,15 +183,21 @@ static block_number_t load_eckd_segments(block_number_t blk, uint64_t *address)
static void run_eckd_boot_script(block_number_t mbr_block_nr)
{
int i;
+ unsigned int loadparm = get_loadparm_index();
block_number_t block_nr;
uint64_t address;
- ScsiMbr *scsi_mbr = (void *)sec;
+ ScsiMbr *bte = (void *)sec; /* Eckd bootmap table entry */
BootMapScript *bms = (void *)sec;
+ debug_print_int("loadparm", loadparm);
+ IPL_assert(loadparm < 31, "loadparm value greater than"
+ " maximum number of boot entries allowed");
+
memset(sec, FREE_SPACE_FILLER, sizeof(sec));
read_block(mbr_block_nr, sec, "Cannot read MBR");
- block_nr = eckd_block_num((void *)&(scsi_mbr->blockptr));
+ block_nr = eckd_block_num((void *)&(bte->blockptr[loadparm]));
+ IPL_assert(block_nr != -1, "No Boot Map");
memset(sec, FREE_SPACE_FILLER, sizeof(sec));
read_block(block_nr, sec, "Cannot read Boot Map Script");
@@ -459,11 +465,11 @@ static void ipl_scsi(void)
debug_print_int("MBR Version", mbr->version_id);
IPL_check(mbr->version_id == 1,
"Unknown MBR layout version, assuming version 1");
- debug_print_int("program table", mbr->blockptr.blockno);
- IPL_assert(mbr->blockptr.blockno, "No Program Table");
+ debug_print_int("program table", mbr->blockptr[0].blockno);
+ IPL_assert(mbr->blockptr[0].blockno, "No Program Table");
/* Parse the program table */
- read_block(mbr->blockptr.blockno, sec,
+ read_block(mbr->blockptr[0].blockno, sec,
"Error reading Program Table");
IPL_assert(magic_match(sec, ZIPL_MAGIC), "No zIPL magic in PT");
diff --git a/pc-bios/s390-ccw/bootmap.h b/pc-bios/s390-ccw/bootmap.h
index 9073de2238..7f367820f3 100644
--- a/pc-bios/s390-ccw/bootmap.h
+++ b/pc-bios/s390-ccw/bootmap.h
@@ -70,7 +70,7 @@ typedef struct ScsiMbr {
uint8_t magic[4];
uint32_t version_id;
uint8_t reserved[8];
- ScsiBlockPtr blockptr;
+ ScsiBlockPtr blockptr[];
} __attribute__ ((packed)) ScsiMbr;
#define ZIPL_MAGIC "zIPL"