s390: fix kernel crash due to linkage stack instructions

[pandora-kernel.git] / arch / s390 / kernel / head64.S

diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index 99348c0..78be245 100644 (file)
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -61,7 +61,7 @@ ENTRY(startup_continue)
        .quad   0                       # cr12: tracing off
        .quad   0                       # cr13: home space segment table
        .quad   0xc0000000              # cr14: machine check handling off
-       .quad   0                       # cr15: linkage stack operations
+       .quad   .Llinkage_stack         # cr15: linkage stack operations
 .Lpcmsk:.quad  0x0000000180000000
 .L4malign:.quad 0xffffffffffc00000
 .Lscan2g:.quad 0x80000000 + 0x20000 - 8        # 2GB + 128K - 8
@@ -69,12 +69,15 @@ ENTRY(startup_continue)
 .Lparmaddr:
        .quad   PARMAREA
        .align  64
-.Lduct: .long  0,0,0,0,.Lduald,0,0,0
+.Lduct: .long  0,.Laste,.Laste,0,.Lduald,0,0,0
        .long   0,0,0,0,0,0,0,0
+.Laste:        .quad   0,0xffffffffffffffff,0,0,0,0,0,0
        .align  128
 .Lduald:.rept  8
        .long   0x80000000,0,0,0        # invalid access-list entries
        .endr
+.Llinkage_stack:
+       .long   0,0,0x89000000,0,0,0,0x8a000000,0
 
 ENTRY(_ehead)