From b075083f35309c4f3e50886d6f31a3a0e07a29b5 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Mon, 5 Feb 2007 21:17:07 +0100 Subject: [PATCH] [S390] Fix FCP dump feature detection. FCP dump feature detection works only if the sclp command in head.S was succesful. Since the sclp command is skipped if diag260 works, we don't have any dump feature detection anymore. Bug was introduced with d57de5a36791cb1b7285649c62f183b0d3505f7d. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/head64.S | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S index 6ba3f4512dd..e940e802cb4 100644 --- a/arch/s390/kernel/head64.S +++ b/arch/s390/kernel/head64.S @@ -81,7 +81,6 @@ startup_continue: aghi %r1,1 # size is one more than end larl %r2,memory_chunk stg %r1,8(%r2) # store size of chunk - j .Ldonemem .Lslowmemdetect: l %r2,.Lrcp-.LPG1(%r13) # Read SCP forced command word @@ -156,6 +155,11 @@ startup_continue: # # find memory chunks. # + larl %r9,memory_chunk # skip tprot loop if diag260 + lg %r9,8(%r9) # memory detection was successful + ltgr %r9,%r9 + jne .Ldonemem + lgr %r9,%r3 # end of mem larl %r1,.Lchkmem # set program check address stg %r1,__LC_PGM_NEW_PSW+8 -- 2.41.0