6733775a92
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>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.