s390/ap: exploit new B bit from QCI config info

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This patch introduces an update to the ap_config_info
struct which is filled with the QCI subfunction. There
is a new bit apsb (short 'B') showing if the AP secure
bind facility is available. The patch also includes a
simple function ap_sb_available() wrapping this bit test.

Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Holger Dengler <dengler@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

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Harald Freudenberger 2022-09-20 15:12:01 +02:00 • committed by Heiko Carstens

parent 964d581daf

commit f604704021

4 changed files with 27 additions and 13 deletions

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13

arch/s390/include/asm/ap.h

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20

drivers/s390/crypto/ap_bus.c

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1

drivers/s390/crypto/ap_bus.h

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6

drivers/s390/crypto/vfio_ap_ops.c

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