mirror of https://gitee.com/openkylin/linux.git
f822ad2c2c
The init of the pkey module currently fails if the pckmo instruction or the subfunctions are not available. However, customers may restrict their LPAR to switch off exactly these functions and work with secure key only. So it is a valid case to have the pkey module active and use it for secure key to protected key transfer only. This patch moves the pckmo subfunction check from the pkey module init function into the internal function where the pckmo instruction is called. So now only on invocation of the pckmo instruction the check for the required subfunction is done. If not available EOPNOTSUPP is returned to the caller. The check for having the pckmo instruction available is still done during module init. This instruction came in with MSA 3 together with the basic set of kmc instructions needed to work with protected keys. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Ingo Franzki <ifranzki@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> |
||
|---|---|---|
| .. | ||
| Makefile | ||
| ap_bus.c | ||
| ap_bus.h | ||
| ap_card.c | ||
| ap_debug.h | ||
| ap_queue.c | ||
| pkey_api.c | ||
| zcrypt_api.c | ||
| zcrypt_api.h | ||
| zcrypt_card.c | ||
| zcrypt_cca_key.h | ||
| zcrypt_cex2a.c | ||
| zcrypt_cex2a.h | ||
| zcrypt_cex2c.c | ||
| zcrypt_cex2c.h | ||
| zcrypt_cex4.c | ||
| zcrypt_cex4.h | ||
| zcrypt_debug.h | ||
| zcrypt_error.h | ||
| zcrypt_msgtype6.c | ||
| zcrypt_msgtype6.h | ||
| zcrypt_msgtype50.c | ||
| zcrypt_msgtype50.h | ||
| zcrypt_queue.c | ||