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Diffstat (limited to 'arch/s390/boot/startup.c')
| -rw-r--r-- | arch/s390/boot/startup.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/s390/boot/startup.c b/arch/s390/boot/startup.c index 4ef2622f3d30..50ae83aaef16 100644 --- a/arch/s390/boot/startup.c +++ b/arch/s390/boot/startup.c @@ -84,6 +84,10 @@ static void detect_facilities(void) clock_comparator_max = -1UL >> 1; local_ctl_set_bit(0, CR0_CLOCK_COMPARATOR_SIGN_BIT); } + if (test_facility(50) && test_facility(73)) { + set_machine_feature(MFEATURE_TX); + local_ctl_set_bit(0, CR0_TRANSACTIONAL_EXECUTION_BIT); + } } static int cmma_test_essa(void) |