diff options
| author | Alexander Gordeev <agordeev@linux.ibm.com> | 2021-06-18 08:17:16 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2021-07-05 12:44:23 +0200 |
| commit | d35925b34996196d22a4357dc5212ab03af75151 (patch) | |
| tree | a2e4001cb410ce8e71cc8f93b333e1304170bd69 /arch/s390/include | |
| parent | 7f6dc8d4c880f64b9d450d780d88985b264d8793 (diff) | |
| download | linux-d35925b34996196d22a4357dc5212ab03af75151.tar.bz2 | |
s390/mcck: move storage error checks to assembler
The current storage errors tackling is wrong - the DAT is
enabled in assembler code before the actual storage checks
in C half are executed. In case the page tables themselves
are damaged such approach is not going to work.
With this update unrecoverable storage errors are not
passed to C code for handling, but rather the machine
is stopped right away. The only exception to this flow
is when a machine check occurred in KVM guest - in this
case the errors are reinjected by the handler.
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/nmi.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/s390/include/asm/nmi.h b/arch/s390/include/asm/nmi.h index 20e51c9ff240..5e1307486984 100644 --- a/arch/s390/include/asm/nmi.h +++ b/arch/s390/include/asm/nmi.h @@ -24,8 +24,12 @@ #define MCCK_CODE_EXT_DAMAGE BIT(63 - 5) #define MCCK_CODE_CP BIT(63 - 9) #define MCCK_CODE_CPU_TIMER_VALID BIT(63 - 46) +#define MCCK_CODE_STG_ERROR BIT(63 - 16) +#define MCCK_CODE_STG_KEY_ERROR BIT(63 - 18) +#define MCCK_CODE_STG_DEGRAD BIT(63 - 19) #define MCCK_CODE_PSW_MWP_VALID BIT(63 - 20) #define MCCK_CODE_PSW_IA_VALID BIT(63 - 23) +#define MCCK_CODE_STG_FAIL_ADDR BIT(63 - 24) #define MCCK_CODE_CR_VALID BIT(63 - 29) #define MCCK_CODE_GS_VALID BIT(63 - 36) #define MCCK_CODE_FC_VALID BIT(63 - 43) |