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authorMichael Holzheu <holzheu@de.ibm.com>2008-01-26 14:11:17 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2008-01-26 14:11:24 +0100
commit48657d223d403af676696d313b421368f5e2208a (patch)
treedad16da18aae19618375797d8a16ec5fc65b0713 /include
parenta2fd64d6aaf498756f700eb1d07818efee046733 (diff)
[S390] Use diag308 subcodes 3 and 6 for reboot and dump when possible.
This patch fixes a problem with the following scenario: 1. Linux booted from DASD "A" 2. Reboot from DASD "B" using "/sys/firmware/reipl/ccw/device" 3. Reboot DASD "B" Without this patch in step 3 on newer s390 systems under LPAR instead of DASD "B", DASD "A" will be booted. The reason is that in step 2 we use CCW reipl and in step 3 we use DIAG308 (subcode 3) reipl. DIAG308 does not notice the CCW reipl and still thinks that it has to reboot DASD "A". Before applying this fix, ensure to have MCF RJ9967101E or z9 GA3 base driver installed. Signed-off-by: Michael Holzheu <holzheu@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'include')
-rw-r--r--include/asm-s390/ipl.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-s390/ipl.h b/include/asm-s390/ipl.h
index d0dcc9c5f7c3..c1b2e50392bb 100644
--- a/include/asm-s390/ipl.h
+++ b/include/asm-s390/ipl.h
@@ -143,6 +143,10 @@ enum diag308_opt {
DIAG308_IPL_OPT_DUMP = 0x20,
};
+enum diag308_flags {
+ DIAG308_FLAGS_LP_VALID = 0x80,
+};
+
enum diag308_rc {
DIAG308_RC_OK = 1,
};