From 48657d223d403af676696d313b421368f5e2208a Mon Sep 17 00:00:00 2001 From: Michael Holzheu Date: Sat, 26 Jan 2008 14:11:17 +0100 Subject: [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 Signed-off-by: Martin Schwidefsky --- include/asm-s390/ipl.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/asm-s390/ipl.h b/include/asm-s390/ipl.h index d0dcc9c5f7c..c1b2e50392b 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, }; -- cgit v1.2.3