s390/zcrypt: support special flagged EP11 cprbs

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Within an EP11 cprb there exists a byte field flags. Bit 0x20
of this field indicates a special cprb. A special cprb triggers
special handling in the firmware below the OS layer.

However, a special cprb also needs to have the S bit in GPR0
set when NQAP is called. This was not the case for EP11 cprbs
and this patch now introduces the code to support this.

Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

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Harald Freudenberger 2019-06-05 07:19:54 +02:00 • committed by Heiko Carstens

parent bae0aae2f8

commit e1ab11012e

1 changed files with 4 additions and 0 deletions

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drivers/s390/crypto/zcrypt_msgtype6.c

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