linux/drivers/s390/crypto
Harald Freudenberger 5cf1a563a3 s390/ap: fix vanishing crypto cards in SE environment
A secure execution (SE, also known as confidential computing)
guest may see asynchronous errors on a crypto firmware queue.
The current implementation to gather information about cards
and queues in ap_queue_info() simple returns if an asynchronous
error is hanging on the firmware queue. If such a situation
happened and it was the only queue visible for a crypto card
within an SE guest, then the card vanished from sysfs as
the AP bus scan function refuses to hold a card without any
type information. As lszcrypt evaluates the sysfs such
a card vanished from the lszcrypt card listing and the
user is baffled and has no way to reset and thus clear the
pending asynchronous error.

This patch improves the named function to also evaluate GR2
of the TAPQ in case of asynchronous error pending. If there
is a not-null value stored in, the info is processed now.
In the end, a queue with pending asynchronous error does not
lead to a vanishing card any more.

Reviewed-by: Holger Dengler <dengler@linux.ibm.com>
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2023-11-05 22:34:57 +01:00
..
ap_bus.c s390/ap: fix vanishing crypto cards in SE environment 2023-11-05 22:34:57 +01:00
ap_bus.h s390/ap: rework to use irq info from ap queue status 2023-11-05 22:34:57 +01:00
ap_card.c s390/zcrypt: replace scnprintf with sysfs_emit 2023-03-20 11:12:48 +01:00
ap_debug.h s390/zcrypt: rework of debug feature messages 2021-10-26 15:21:27 +02:00
ap_queue.c s390/ap: re-enable interrupt for AP queues 2023-11-05 22:34:57 +01:00
Makefile s390/zcrypt: remove CEX2 and CEX3 device drivers 2023-07-24 12:12:22 +02:00
pkey_api.c s390/zcrypt_ep11misc: support API ordinal 6 with empty pin-blob 2023-08-18 15:07:57 +02:00
vfio_ap_debug.h s390-vfio-ap: introduces s390 kernel debug feature for vfio_ap device driver 2022-02-06 23:31:29 +01:00
vfio_ap_drv.c s390 updates for the 6.4 merge window 2023-04-30 11:43:31 -07:00
vfio_ap_ops.c VFIO updates for v6.6-rc1 2023-08-30 20:36:01 -07:00
vfio_ap_private.h s390/vfio-ap: use work struct to verify queue reset 2023-08-18 15:09:29 +02:00
zcrypt_api.c s390/zcrypt: introduce new internal AP queue se_bound attribute 2023-10-16 13:04:09 +02:00
zcrypt_api.h s390/zcrypt: cleanup some debug code 2023-07-03 11:19:41 +02:00
zcrypt_card.c s390/zcrypt: don't report online if card or queue is in check-stop state 2023-11-05 22:34:57 +01:00
zcrypt_cca_key.h s390/zcrypt: rework arrays with length zero occurrences 2023-04-19 16:47:31 +02:00
zcrypt_ccamisc.c s390: fix various typos 2023-07-03 11:19:42 +02:00
zcrypt_ccamisc.h s390: fix various typos 2023-07-03 11:19:42 +02:00
zcrypt_cex2a.c s390/zcrypt: remove CEX2 and CEX3 device drivers 2023-07-24 12:12:22 +02:00
zcrypt_cex2a.h s390/zcrypt: remove CEX2 and CEX3 device drivers 2023-07-24 12:12:22 +02:00
zcrypt_cex2c.c s390/zcrypt: remove CEX2 and CEX3 device drivers 2023-07-24 12:12:22 +02:00
zcrypt_cex2c.h s390/zcrypt: remove CEX2 and CEX3 device drivers 2023-07-24 12:12:22 +02:00
zcrypt_cex4.c s390/zcrypt: update list of EP11 operation modes 2023-09-19 13:26:55 +02:00
zcrypt_cex4.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
zcrypt_debug.h s390/zcrypt: rework of debug feature messages 2021-10-26 15:21:27 +02:00
zcrypt_ep11misc.c s390/zcrypt_ep11misc: support API ordinal 6 with empty pin-blob 2023-08-18 15:07:57 +02:00
zcrypt_ep11misc.h s390/zcrypt_ep11misc: support API ordinal 6 with empty pin-blob 2023-08-18 15:07:57 +02:00
zcrypt_error.h s390/ap: show APFS value on error reply 0x8B 2023-10-16 13:04:09 +02:00
zcrypt_msgtype6.c s390/zcrypt: remove CEX2 and CEX3 device drivers 2023-07-24 12:12:22 +02:00
zcrypt_msgtype6.h s390/zcrypt: code cleanup 2022-04-25 13:54:14 +02:00
zcrypt_msgtype50.c s390/zcrypt: remove CEX2 and CEX3 device drivers 2023-07-24 12:12:22 +02:00
zcrypt_msgtype50.h s390/zcrypt: remove CEX2 and CEX3 device drivers 2023-07-24 12:12:22 +02:00
zcrypt_queue.c s390/zcrypt: don't report online if card or queue is in check-stop state 2023-11-05 22:34:57 +01:00