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| author | Alexander Gordeev <agordeev@linux.ibm.com> | 2022-03-24 22:02:24 +0300 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2022-03-27 23:18:39 +0300 |
| commit | 7277b4216a1162157de06fd93cd54426c47d47b8 (patch) | |
| tree | 5da5ec6a4e9620665fbafc847405b8c2c9a5abb2 /arch/s390/kernel/smp.c | |
| parent | 4f45c37ffd100522f890fc7f8bd71a3b8f79b6be (diff) | |
| download | linux-7277b4216a1162157de06fd93cd54426c47d47b8.tar.xz | |
s390/smp: use physical address for SIGP_SET_PREFIX command
Signal processor SIGP_SET_PREFIX command expects physical
address of the lowcore to be installed, but instead the
virtual address is provided.
Note: this does not fix a bug currently, since virtual and
physical addresses are identical.
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel/smp.c')
| -rw-r--r-- | arch/s390/kernel/smp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 51529c33c7bf..30c91d565933 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -213,7 +213,7 @@ static int pcpu_alloc_lowcore(struct pcpu *pcpu, int cpu) if (nmi_alloc_mcesa(&lc->mcesad)) goto out; lowcore_ptr[cpu] = lc; - pcpu_sigp_retry(pcpu, SIGP_SET_PREFIX, (u32)(unsigned long) lc); + pcpu_sigp_retry(pcpu, SIGP_SET_PREFIX, __pa(lc)); return 0; out: |