From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 4 Dec 2006 14:40:36 +0000 (+0100)
Subject: [S390] Misaligned wait PSW at memory detection.
X-Git-Tag: firefly_0821_release~30985^2~47^2~116^2~14
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=baf2aeb3d9e286add823bcaea5442ad4ee34f6e4;p=firefly-linux-kernel-4.4.55.git

[S390] Misaligned wait PSW at memory detection.

If the memory detection code would ever reach the point where it would
load the wait psw, it would generate a specification exception and the
system would crash at ipl time. This is because of a misaligned wait
psw. It needs to be on a double word boundary instead of a word
boundary.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

diff --git a/arch/s390/kernel/head31.S b/arch/s390/kernel/head31.S
index 0a2c929486ab..adb082aeada6 100644
--- a/arch/s390/kernel/head31.S
+++ b/arch/s390/kernel/head31.S
@@ -131,10 +131,11 @@ startup_continue:
 	.long	init_thread_union
 .Lpmask:
 	.byte	0
-.align 8
+	.align	8
 .Lpcext:.long	0x00080000,0x80000000
 .Lcr:
 	.long	0x00			# place holder for cr0
+	.align	8
 .Lwaitsclp:
 	.long 0x010a0000,0x80000000 + .Lsclph
 .Lrcp: