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| author |   Heiko Carstens <hca@linux.ibm.com> | 2021-12-16 13:27:10 +0100 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2021-12-20 10:21:55 +0100 |
| commit | a0e45d40d5f8461aeee9374c0ffa7b1da87c203c (patch) | |
| tree | 9db5bd01c39381defaf63600bf37a6441c082422 /arch/s390/kernel/crash_dump.c | |
| parent | s390/crypto: fix compile error for ChaCha20 module (diff) | |
| download | linux-dev-a0e45d40d5f8461aeee9374c0ffa7b1da87c203c.tar.xz linux-dev-a0e45d40d5f8461aeee9374c0ffa7b1da87c203c.zip | |
s390/crash_dump: fix virtual vs physical address handling
Signal processor STORE STATUS requires a physical address where register
contents are supposed to be written to, however the kernel must read the
data via the corresponding virtual address.
Also the allocated save_area, where register contents are copied to,
resides in virtual address space.
Fix this by using proper __pa() conversion, or correct memblock_alloc()
invocation.
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel/crash_dump.c')
| -rw-r--r-- | arch/s390/kernel/crash_dump.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c index 785d54c9350c..af8202121642 100644 --- a/arch/s390/kernel/crash_dump.c +++ b/arch/s390/kernel/crash_dump.c @@ -60,7 +60,7 @@ struct save_area * __init save_area_alloc(bool is_boot_cpu) { struct save_area *sa; - sa = (void *) memblock_phys_alloc(sizeof(*sa), 8); + sa = memblock_alloc(sizeof(*sa), 8); if (!sa) panic("Failed to allocate save area\n"); |