diff options
Diffstat (limited to 'arch/s390/kernel/processor.c')
| -rw-r--r-- | arch/s390/kernel/processor.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c index 7ce00e7a709a..ab236bd970bb 100644 --- a/arch/s390/kernel/processor.c +++ b/arch/s390/kernel/processor.c @@ -13,6 +13,7 @@ #include <linux/cpu.h> #include <asm/diag.h> #include <asm/elf.h> +#include <asm/facility.h> #include <asm/lowcore.h> #include <asm/param.h> #include <asm/smp.h> @@ -113,3 +114,20 @@ const struct seq_operations cpuinfo_op = { .show = show_cpuinfo, }; +int s390_isolate_bp(void) +{ + if (!test_facility(82)) + return -EOPNOTSUPP; + set_thread_flag(TIF_ISOLATE_BP); + return 0; +} +EXPORT_SYMBOL(s390_isolate_bp); + +int s390_isolate_bp_guest(void) +{ + if (!test_facility(82)) + return -EOPNOTSUPP; + set_thread_flag(TIF_ISOLATE_BP_GUEST); + return 0; +} +EXPORT_SYMBOL(s390_isolate_bp_guest); |