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authorMichael Holzheu <holzheu@de.ibm.com>2008-01-26 08:11:17 -0500
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2008-01-26 08:11:24 -0500
commit48657d223d403af676696d313b421368f5e2208a (patch)
treedad16da18aae19618375797d8a16ec5fc65b0713 /include/asm-s390/ipl.h
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/asm-s390/ipl.h')
-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 {
143 DIAG308_IPL_OPT_DUMP = 0x20, 143 DIAG308_IPL_OPT_DUMP = 0x20,
144}; 144};
145 145
146enum diag308_flags {
147 DIAG308_FLAGS_LP_VALID = 0x80,
148};
149
146enum diag308_rc { 150enum diag308_rc {
147 DIAG308_RC_OK = 1, 151 DIAG308_RC_OK = 1,
148}; 152};