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| author |   Michael Holzheu <holzheu@de.ibm.com> | 2006-12-15 17:18:27 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2006-12-15 17:18:27 +0100 |
| commit | da1cf23efe0c067ef95e4702b386e6e1baab10c7 (patch) | |
| tree | b36343c44c122ea221667731800e955d55bef6bb /arch/s390/kernel/reipl64.S | |
| parent | [S390] Fix reboot hang (diff) | |
| download | linux-dev-da1cf23efe0c067ef95e4702b386e6e1baab10c7.tar.xz linux-dev-da1cf23efe0c067ef95e4702b386e6e1baab10c7.zip | |
[S390] Save prefix register for dump on panic
The dump tools expect that the saved prefix register points to the
lowcore of the dump cpu. Since we set the prefix register to 0 during
reipl/dump, we have to save the original prefix register. Before we
start the dump program, we copy the original prefix register to the
designated location in the lowcore.
Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/reipl64.S')
| -rw-r--r-- | arch/s390/kernel/reipl64.S | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/s390/kernel/reipl64.S b/arch/s390/kernel/reipl64.S index f18ef260ca23..dbb3eed38865 100644 --- a/arch/s390/kernel/reipl64.S +++ b/arch/s390/kernel/reipl64.S @@ -20,7 +20,7 @@ do_reipl_asm: basr %r13,0 stg %r0,__LC_GPREGS_SAVE_AREA-0x1000+8(%r1) stctg %c0,%c15,__LC_CREGS_SAVE_AREA-0x1000(%r1) stam %a0,%a15,__LC_AREGS_SAVE_AREA-0x1000(%r1) - stpx __LC_PREFIX_SAVE_AREA-0x1000(%r1) + mvc __LC_PREFIX_SAVE_AREA-0x1000(4,%r1),dump_prefix_page-.Lpg0(%r13) stfpc __LC_FP_CREG_SAVE_AREA-0x1000(%r1) stckc .Lclkcmp-.Lpg0(%r13) mvc __LC_CLOCK_COMP_SAVE_AREA-0x1000(8,%r1),.Lclkcmp-.Lpg0(%r13) @@ -103,3 +103,6 @@ do_reipl_asm: basr %r13,0 .long 0x00000000,0x00000000 .long 0x00000000,0x00000000 .long 0x00000000,0x00000000 + .globl dump_prefix_page +dump_prefix_page: + .long 0x00000000 |