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由 Harald Freudenberger 提交于
[ Upstream commit 6733775a92eacd612ac88afa0fd922e4ffeb2bc7 ] 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: NHarald Freudenberger <freude@linux.ibm.com> Signed-off-by: NVasily Gorbik <gor@linux.ibm.com> Signed-off-by: NSasha Levin <sashal@kernel.org> Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>
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