![]() 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 -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (GNU/Linux) iQIcBAABAgAGBQJXX+A6AAoJEBF7vIC1phx8SBoQAIkFTMxoGvY9lFkkreUXIyeX XL0grybhsaKd4tT80FlobTl2ejpo/feRl5RfD5Oi75UCR4oMuk3Eb8bIyQjcKJvS 7sYFz+zP9TZ5S/rxvc3EanXpcNnfowKDuLUyOTaq0Hq8XQHaSwzYGGbtPgTdMDAp DyhwNhYK8cPvmBS3KHX70ZOMfl9J4s0xvgs42BRJyyDGYrJOZcN1NLsG2l1dAb0L au/Svb05PxhgQvqoUId3VSrmRKLm9tSk5DJdIRcmj1+4Mlhfw14LTV+wGuTLTgSZ GOyEdum2E/b4QABWca7sxmgqo+Wo5voOW+WKOGLMiN2sK+JwvSnu4qmiRG/qgFCJ EQDZer+OEQTu+YgZzjm/r5wbIkV/gqUenjjepk5iWrxK6EB7CmlQuZyyEKm3wO7i LrEDqRU7SY+PuUu+Ov6/PHxmMy5DJuK+AedRe8uzuDSmYpSekYFLD44gctkPe56q uq4Fhx3g3EIkPMcHnAae92vHLp/INCHCGoPb4Xh6CnaP4Xm+RntCv2hWxw30rHgc IIYVy4fSyJuTeHpFcNgeBrbcx4jwvkfJ9kxezM864DA9hBBfcS3ZZDhLM5PPEaLr usu7Gt6nHeFtwvXxZn/Y+SsYWCWpmbt6An/m+lqf05aAqyndhbwJ8Kftz3OAxKDw b7o59x2wvV9dfakAHxNx =fdBQ -----END PGP SIGNATURE----- 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 |
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kvm | ||
uml | ||
00-INDEX | ||
paravirt_ops.txt |