diff options
| author | Alexander Gordeev <agordeev@linux.ibm.com> | 2023-05-07 19:09:02 +0300 |
|---|---|---|
| committer | Alexander Gordeev <agordeev@linux.ibm.com> | 2023-05-15 15:20:14 +0300 |
| commit | 2facd5d3980f3a26c04fe6ec8689a1d019a5812c (patch) | |
| tree | d5509bdc35bc32586555a0d9b9c51af2ec2c48cb /arch | |
| parent | a33239be2d38ff5a44427db1707c08787508d34a (diff) | |
| download | linux-2facd5d3980f3a26c04fe6ec8689a1d019a5812c.tar.xz | |
s390/ipl: fix IPIB virtual vs physical address confusion
The pointer to IPL Parameter Information Block is stored
in the absolute lowcore for later use by dump tools. That
pointer is a virtual address, though it should be physical
instead.
Note, this does not fix a real issue, since virtual and
physical addresses are currently the same.
Suggested-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/kernel/ipl.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index 43de939b7af1..f44f70de9661 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -1935,14 +1935,13 @@ static struct shutdown_action __refdata dump_action = { static void dump_reipl_run(struct shutdown_trigger *trigger) { - unsigned long ipib = (unsigned long) reipl_block_actual; struct lowcore *abs_lc; unsigned int csum; csum = (__force unsigned int) csum_partial(reipl_block_actual, reipl_block_actual->hdr.len, 0); abs_lc = get_abs_lowcore(); - abs_lc->ipib = ipib; + abs_lc->ipib = __pa(reipl_block_actual); abs_lc->ipib_checksum = csum; put_abs_lowcore(abs_lc); dump_run(trigger); |