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-rw-r--r--arch/s390/kernel/head64.S2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index 482d3526e32b..31c91f24e562 100644
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -52,7 +52,7 @@ ENTRY(startup_continue)
.quad 0 # cr1: primary space segment table
.quad .Lduct # cr2: dispatchable unit control table
.quad 0 # cr3: instruction authorization
- .quad 0 # cr4: instruction authorization
+ .quad 0xffff # cr4: instruction authorization
.quad .Lduct # cr5: primary-aste origin
.quad 0 # cr6: I/O interrupts
.quad 0 # cr7: secondary space segment table
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