diff options
| author |   Alexander Gordeev <agordeev@linux.ibm.com> | 2021-12-10 16:32:11 +0100 |
|---|---|---|
| committer |   Heiko Carstens <hca@linux.ibm.com> | 2021-12-16 19:58:07 +0100 |
| commit | c7ed509b21b6566990ff39a6744cd5e214b5dca9 (patch) | |
| tree | acd60b4b292b8e02a2fc4338653b9ce4d09ab763 /arch/s390/include | |
| parent | s390/zcrypt: CCA control CPRB sending (diff) | |
| download | linux-dev-c7ed509b21b6566990ff39a6744cd5e214b5dca9.tar.xz linux-dev-c7ed509b21b6566990ff39a6744cd5e214b5dca9.zip | |
s390/nmi: disable interrupts on extended save area update
Updating of the pointer to machine check extended save area
on the IPL CPU needs the lowcore protection to be disabled.
Disable interrupts while the protection is off to avoid
unnoticed writes to the lowcore.
Suggested-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/nmi.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/s390/include/asm/nmi.h b/arch/s390/include/asm/nmi.h index 2db45d7e68aa..55c9051dddfd 100644 --- a/arch/s390/include/asm/nmi.h +++ b/arch/s390/include/asm/nmi.h @@ -98,9 +98,9 @@ struct mcesa { struct pt_regs; -void nmi_alloc_boot_cpu(struct lowcore *lc); -int nmi_alloc_per_cpu(struct lowcore *lc); -void nmi_free_per_cpu(struct lowcore *lc); +void nmi_alloc_mcesa_early(u64 *mcesad); +int nmi_alloc_mcesa(u64 *mcesad); +void nmi_free_mcesa(u64 *mcesad); void s390_handle_mcck(void); void __s390_handle_mcck(void); |