Commits
Merge tag 'kvm-s390-next-4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD KVM: s390: Features and fixes for 4.8 part1 Four bigger things: 1. The implementation of the STHYI opcode in the kernel. This is used in libraries like qclib [1] to provide enough information for a capacity and usage based software licence pricing. The STHYI content is defined by the related z/VM documentation [2]. Its data can be composed by accessing several other interfaces provided by LPAR or the machine. This information is partially sensitive or root-only so the kernel does the necessary filtering. 2. Preparation for nested virtualization (VSIE). KVM should query the proper sclp interfaces for the availability of some features before using it. In the past we have been sloppy and simply assumed that several features are available. With this we should be able to handle most cases of a missing feature. 3. CPU model interfaces extended by some additional features that are not covered by a facility bit in STFLE. For example all the crypto instructions of the coprocessor provide a query function. As reality tends to be more complex (e.g. export regulations might block some algorithms) we have to provide additional interfaces to query or set these non-stfle features. 4. Several fixes and changes detected and fixed when doing 1-3. All features change base s390 code. All relevant patches have an ACK from the s390 or component maintainers. The next pull request for 4.8 (part2) will contain the implementation of VSIE. [1] http://www.ibm.com/developerworks/linux/linux390/qclib.html [2] https://www.ibm.com/support/knowledgecenter/SSB27U_6.3.0/com.ibm.zvm.v630.hcpb4/hcpb4sth.htm
