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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-01-16 07:03:44 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-02-05 13:49:16 +0100 |
| commit | cf1489984641369611556bf00c48f945c77bcf02 (patch) | |
| tree | db97d15f77022fd35bea4f20274efa965bb5230f /arch/s390/kernel/early.c | |
| parent | e2dd833389cc4069a96b57bdd24227b5f52288f5 (diff) | |
| download | linux-next-cf1489984641369611556bf00c48f945c77bcf02.tar.gz | |
s390/alternative: use a copy of the facility bit mask
To be able to switch off specific CPU alternatives with kernel parameters
make a copy of the facility bit mask provided by STFLE and use the copy
for the decision to apply an alternative.
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/early.c')
| -rw-r--r-- | arch/s390/kernel/early.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index 497a92047591..510f2183a7e7 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -193,6 +193,9 @@ static noinline __init void setup_facility_list(void) { stfle(S390_lowcore.stfle_fac_list, ARRAY_SIZE(S390_lowcore.stfle_fac_list)); + memcpy(S390_lowcore.alt_stfle_fac_list, + S390_lowcore.stfle_fac_list, + sizeof(S390_lowcore.alt_stfle_fac_list)); } static __init void detect_diag9c(void) |