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author | Harald Freudenberger <freude@linux.ibm.com> | 2019-11-20 11:44:31 +0100 |
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committer | Vasily Gorbik <gor@linux.ibm.com> | 2019-11-30 10:52:44 +0100 |
commit | 6733775a92eacd612ac88afa0fd922e4ffeb2bc7 (patch) | |
tree | d1ac2f659527aaa7dc9f45776881cfcbe7e360d1 /arch/s390/kernel | |
parent | 914d52e46490b6599b7f03fad233f4f19bf23cf7 (diff) | |
download | linux-6733775a92eacd612ac88afa0fd922e4ffeb2bc7.tar.bz2 |
s390/zcrypt: handle new reply code FILTERED_BY_HYPERVISOR
This patch introduces support for a new architectured reply
code 0x8B indicating that a hypervisor layer (if any) has
rejected an ap message.
Linux may run as a guest on top of a hypervisor like zVM
or KVM. So the crypto hardware seen by the ap bus may be
restricted by the hypervisor for example only a subset like
only clear key crypto requests may be supported. Other
requests will be filtered out - rejected by the hypervisor.
The new reply code 0x8B will appear in such cases and needs
to get recognized by the ap bus and zcrypt device driver zoo.
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel')
0 files changed, 0 insertions, 0 deletions