s390/cpacf: Unpoison instruction results

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Stop KMSAN from complaining about CPACF outputs being uninitialized.

Do not unpoison variable-length parameter blocks: mapping function
codes (like CPACF_KIMD_SHA_256) to lengths will be ugly. So let the
callers do this once the need arises.

Also do not touch cpacf_kma(): this wrapper does not handle cc 1 and
cc2 at the moment and has to be reworked.

Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

...

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Ilya Leoshkevich 2026-08-14 14:15:25 +02:00 • committed by Heiko Carstens

parent ca1f4a5eca

commit b00c10948f

1 changed files with 6 additions and 0 deletions

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arch/s390/include/asm/cpacf.h

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