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-rw-r--r--arch/s390/kernel/early.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 2d92c2cf92d7..c00856ad4e5a 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -356,6 +356,7 @@ static __init void detect_machine_facilities(void)
{
#ifdef CONFIG_64BIT
unsigned int facilities;
+ unsigned long long facility_bits;
facilities = stfl();
if (facilities & (1 << 28))
@@ -364,6 +365,9 @@ static __init void detect_machine_facilities(void)
S390_lowcore.machine_flags |= MACHINE_FLAG_PFMF;
if (facilities & (1 << 4))
S390_lowcore.machine_flags |= MACHINE_FLAG_MVCOS;
+ if ((stfle(&facility_bits, 1) > 0) &&
+ (facility_bits & (1ULL << (63 - 40))))
+ S390_lowcore.machine_flags |= MACHINE_FLAG_SPP;
#endif
}