s390/smp: enforce lowcore protection on CPU restart

[platform/kernel/linux-starfive.git] / arch / s390 / kernel / setup.c

diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 74adb43..bbd4bde 100644 (file)
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -508,8 +508,8 @@ static void __init setup_lowcore_dat_on(void)
        S390_lowcore.svc_new_psw.mask |= PSW_MASK_DAT;
        S390_lowcore.program_new_psw.mask |= PSW_MASK_DAT;
        S390_lowcore.io_new_psw.mask |= PSW_MASK_DAT;
-       __ctl_store(S390_lowcore.cregs_save_area, 0, 15);
        __ctl_set_bit(0, 28);
+       __ctl_store(S390_lowcore.cregs_save_area, 0, 15);
        put_abs_lowcore(restart_flags, RESTART_FLAG_CTLREGS);
        put_abs_lowcore(program_new_psw, lc->program_new_psw);
        for (cr = 0; cr < ARRAY_SIZE(lc->cregs_save_area); cr++)