s390/mm: Let dump_fault_info() print additional information

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Let dump_fault_info() print additional information to make debugging
easier:

Print "FSI" if the access-exception-fetch/store-indication facility is
installed. If it is installed the TEID may also indicate if an exception
happened because of a fetch or a store operation.

Print "SOP", "ESOP-1", or "ESOP-2" depending on the type of the installed
Suppression-on-Protection facility. This also gives additional information
about the validity and meaning of the TEID bits.

The output is changed from something like:

Failing address: 0000000000000000 TEID: 0000000000000803

to

Failing address: 0000000000000000 TEID: 0000000000000803 ESOP-2 FSI

Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

...

This commit is contained in:

Heiko Carstens 2025-11-03 16:25:33 +01:00

parent 76502abca2

commit b60d126c8e

1 changed files with 10 additions and 1 deletions

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arch/s390/mm/fault.c

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