Searched hist:e3bcd0f7a9b31ca5ac5825b6d808bf5226f4c706 (Results 1 – 1 of 1) sorted by relevance
| /linux/arch/s390/include/asm/ |
| H A D | cpacf.h | e3bcd0f7a9b31ca5ac5825b6d808bf5226f4c706 Wed May 14 09:09:54 UTC 2025 Harald Freudenberger <freude@linux.ibm.com> s390/cpacf: Rework cpacf_pcc() to return condition code
Some of the pcc sub-functions have a protected key as
input and thus may run into the situation that this
key may be invalid for example due to live guest migration
to another physical hardware.
Rework the inline assembler function cpacf_pcc() to
return the condition code (cc) as return value:
0 - cc code 0 (normal completion)
1 - cc code 1 (prot key wkvp mismatch or src op out of range)
2 - cc code 2 (something invalid, scalar multiply infinity, ...)
Note that cc 3 (partial completion) is handled within the asm code
and never returned.
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Holger Dengler <dengler@linux.ibm.com>
Link: https://lore.kernel.org/r/20250514090955.72370-2-freude@linux.ibm.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
|