linux/arch/s390
Harald Freudenberger be53479101 s390/zcrypt: improve special ap message cmd handling
There exist very few ap messages which need to have the 'special' flag
enabled. This flag tells the firmware layer to do some pre- and maybe
postprocessing. However, it may happen that this special flag is
enabled but the firmware is unable to deal with this kind of message
and thus returns with reply code 0x41. For example older firmware may
not know the newest messages triggered by the zcrypt device driver and
thus react with reject and the named reply code. Unfortunately this
reply code is not known to the zcrypt error routines and thus default
behavior is to switch the ap queue offline.

This patch now makes the ap error routine aware of the reply code and
so userspace is informed about the bad processing result but the queue
is not switched to offline state any more.

Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-11-30 07:22:05 +01:00
..
appldata sched: loadavg: consolidate LOAD_INT, LOAD_FRAC, CALC_LOAD 2018-10-26 16:26:32 -07:00
boot s390: avoid vmlinux segments overlap 2018-10-26 10:19:40 +02:00
configs s390: update defconfigs 2018-11-05 15:10:27 +01:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2018-10-25 16:43:35 -07:00
hypfs s390/hypfs: do not use stack buffers for hardware data 2018-10-09 11:20:53 +02:00
include s390/zcrypt: improve special ap message cmd handling 2018-11-30 07:22:05 +01:00
kernel s390/cpum_cf: Reject request for sampling in event initialization 2018-11-14 13:44:55 +01:00
kvm KVM: s390/vfio-ap: Fixes and enhancements for vfio-ap 2018-10-13 12:00:26 +02:00
lib s390/kasan: avoid user access code instrumentation 2018-10-09 11:21:21 +02:00
mm s390/mm: correct pgtable_bytes on page table downgrade 2018-11-27 14:07:12 +01:00
net Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2018-08-13 19:07:17 -07:00
numa s390 updates for 4.20-rc2 2018-11-09 06:30:44 -06:00
oprofile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pci s390/pci: remove fmb address from debug output 2018-08-16 14:49:13 +02:00
purgatory s390: clean up stacks setup 2018-09-20 13:20:29 +02:00
scripts s390/build: add *.o.chkbss files to targets list 2018-07-02 12:32:23 +02:00
tools KVM: s390: CPU model support for AP virtualization 2018-09-28 15:50:11 +02:00
defconfig s390: update defconfigs 2018-11-05 15:10:27 +01:00
Kbuild s390/kexec_file: Add purgatory 2018-04-16 09:10:22 +02:00
Kconfig mm: remove CONFIG_HAVE_MEMBLOCK 2018-10-31 08:54:15 -07:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Makefile s390/kasan: increase instrumented stack size to 64k 2018-11-02 08:31:57 +01:00