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linux/drivers/s390/crypto
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Tony Krowiak 6c12a6384e s390/vfio-ap: No need to disable IRQ after queue reset 
The queues assigned to a matrix mediated device are currently reset when:

* The VFIO_DEVICE_RESET ioctl is invoked
* The mdev fd is closed by userspace (QEMU)
* The mdev is removed from sysfs.

Immediately after the reset of a queue, a call is made to disable
interrupts for the queue. This is entirely unnecessary because the reset of
a queue disables interrupts, so this will be removed.

Furthermore, vfio_ap_irq_disable() does an unconditional PQAP/AQIC which
can result in a specification exception (when the corresponding facility
is not available), so this is actually a bugfix.

Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
[pasic@linux.ibm.com: minor rework before merging]
Signed-off-by: Halil Pasic <pasic@linux.ibm.com>
Fixes: ec89b55e3b ("s390: ap: implement PAPQ AQIC interception in kernel")
Cc: <stable@vger.kernel.org>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2021-01-27 13:00:04 +01:00
..
ap_bus.c s390/ap: let bus_register() add the AP bus sysfs attributes 2020-11-30 14:10:50 +01:00
ap_bus.h s390/ap: ap bus userspace notifications for some bus conditions 2020-11-09 11:21:00 +01:00
ap_card.c s390/ap: Support AP card SCLP config and deconfig operations 2020-10-07 21:50:01 +02:00
ap_debug.h s390/ap: add error response code field for ap queue devices 2020-10-07 21:50:00 +02:00
ap_queue.c s390/zcrypt: fix wrong format specifications 2020-10-09 23:45:30 +02:00
Makefile s390/zcrypt: add new low level ep11 functions support file 2020-01-30 13:07:55 +01:00
pkey_api.c s390/zcrypt/pkey: introduce zcrypt_wait_api_operational() function 2020-11-09 11:21:00 +01:00
vfio_ap_drv.c s390/vfio-ap: No need to disable IRQ after queue reset 2021-01-27 13:00:04 +01:00
vfio_ap_ops.c s390/vfio-ap: No need to disable IRQ after queue reset 2021-01-27 13:00:04 +01:00
vfio_ap_private.h s390/vfio-ap: No need to disable IRQ after queue reset 2021-01-27 13:00:04 +01:00
zcrypt_api.c s390/zcrypt/pkey: introduce zcrypt_wait_api_operational() function 2020-11-09 11:21:00 +01:00
zcrypt_api.h s390/zcrypt/pkey: introduce zcrypt_wait_api_operational() function 2020-11-09 11:21:00 +01:00
zcrypt_card.c s390/ap: fix ap devices reference counting 2020-11-03 15:12:15 +01:00
zcrypt_cca_key.h
zcrypt_ccamisc.c s390 updates for the 5.10 merge window 2020-10-16 12:36:38 -07:00
zcrypt_ccamisc.h s390/pkey: support CCA and EP11 secure ECC private keys 2020-09-24 10:03:28 +02:00
zcrypt_cex2a.c s390/zcrypt: convert comma to semicolon 2020-12-16 14:55:50 +01:00
zcrypt_cex2a.h
zcrypt_cex2c.c s390/zcrypt: introduce msg tracking in zcrypt functions 2020-10-07 21:49:59 +02:00
zcrypt_cex2c.h
zcrypt_cex4.c s390/zcrypt: convert comma to semicolon 2020-12-16 14:55:50 +01:00
zcrypt_cex4.h
zcrypt_debug.h s390/ap/zcrypt: revisit ap and zcrypt error handling 2020-10-07 21:50:01 +02:00
zcrypt_ep11misc.c s390/pkey: support CCA and EP11 secure ECC private keys 2020-09-24 10:03:28 +02:00
zcrypt_ep11misc.h s390/pkey: support CCA and EP11 secure ECC private keys 2020-09-24 10:03:28 +02:00
zcrypt_error.h s390/ap/zcrypt: revisit ap and zcrypt error handling 2020-10-07 21:50:01 +02:00
zcrypt_msgtype6.c s390/zcrypt: Introduce Failure Injection feature 2020-10-07 21:50:01 +02:00
zcrypt_msgtype6.h s390/zcrypt: remove set_fs() invocation in zcrypt device driver 2020-09-17 14:11:03 +02:00
zcrypt_msgtype50.c s390/zcrypt: Introduce Failure Injection feature 2020-10-07 21:50:01 +02:00
zcrypt_msgtype50.h
zcrypt_queue.c s390/ap: fix ap devices reference counting 2020-11-03 15:12:15 +01:00