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Under certain specified conditions, the Test AP Queue (TAPQ) subfunction of the Process Adjunct Processor Queue (PQAP) instruction will be intercepted by a guest VM. The guest VM must have a means for executing the intercepted instruction. The vfio_ap driver will provide an interface to execute the PQAP(TAPQ) instruction subfunction on behalf of a guest VM. The code for executing the AP instructions currently resides in the AP bus. This patch refactors the AP bus code to externalize access to the PQAP(TAPQ) instruction subfunction to make it available to the vfio_ap driver. Signed-off-by: Tony Krowiak <akrowiak@linux.vnet.ibm.com> Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.