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Diffstat (limited to 'arch/s390/pci/pci.c')
-rw-r--r--arch/s390/pci/pci.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index b8a64cbb5dea..b0e3b9a0e488 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -890,8 +890,10 @@ static int __init pci_base_init(void)
if (!test_facility(69) || !test_facility(71))
return 0;
- if (test_facility(153) && !s390_pci_no_mio)
+ if (test_facility(153) && !s390_pci_no_mio) {
static_branch_enable(&have_mio);
+ ctl_set_bit(2, 5);
+ }
rc = zpci_debug_init();
if (rc)