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| author | Alexander Egorenkov <egorenar@linux.ibm.com> | 2021-06-15 14:25:41 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2021-07-27 09:39:16 +0200 |
| commit | e9e7870f90e3587b712e05db2ded947a3f617119 (patch) | |
| tree | 5f46c90fdecbab876787f31650b0bae4be075b7f /drivers/s390 | |
| parent | 84733284f67b1a937f6205fdb16aa5cbb8b4f53d (diff) | |
| download | linux-e9e7870f90e3587b712e05db2ded947a3f617119.tar.gz linux-e9e7870f90e3587b712e05db2ded947a3f617119.tar.bz2 linux-e9e7870f90e3587b712e05db2ded947a3f617119.zip | |
s390/dump: introduce boot data 'oldmem_data'
The new boot data struct shall replace global variables OLDMEM_BASE and
OLDMEM_SIZE. It is initialized in the decompressor and passed
to the decompressed kernel. In comparison to the old solution, this one
doesn't access data at fixed physical addresses which will become important
when the decompressor becomes relocatable.
Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/char/sclp_cmd.c | 2 | ||||
| -rw-r--r-- | drivers/s390/char/zcore.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c index ab0518cfdcfe..998933e83610 100644 --- a/drivers/s390/char/sclp_cmd.c +++ b/drivers/s390/char/sclp_cmd.c @@ -457,7 +457,7 @@ static int __init sclp_detect_standby_memory(void) struct read_storage_sccb *sccb; int i, id, assigned, rc; - if (OLDMEM_BASE) /* No standby memory in kdump mode */ + if (oldmem_data.start) /* No standby memory in kdump mode */ return 0; if ((sclp.facilities & 0xe00000000000ULL) != 0xe00000000000ULL) return 0; diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c index b5b0848da93b..3ba2d934a3e8 100644 --- a/drivers/s390/char/zcore.c +++ b/drivers/s390/char/zcore.c @@ -269,7 +269,7 @@ static int __init zcore_init(void) if (!is_ipl_type_dump()) return -ENODATA; - if (OLDMEM_BASE) + if (oldmem_data.start) return -ENODATA; zcore_dbf = debug_register("zcore", 4, 1, 4 * sizeof(long)); |