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2688d68141
Introduce new regression tests to verify the ASM inline block in the SORTL and DFLTCC CPU subfunctions for the s390x architecture. These tests ensure that future changes to the ASM code are properly validated. The test procedure: 1. Create a VM and request the KVM_S390_VM_CPU_MACHINE_SUBFUNC attribute from the KVM_S390_VM_CPU_MODEL group for this VM. This SUBFUNC attribute contains the results of all CPU subfunction instructions. 2. For each tested subfunction (SORTL and DFLTCC), execute the corresponding ASM instruction and capture the result array. 3. Perform a memory comparison between the results stored in the SUBFUNC attribute (obtained in step 1) and the ASM instruction results (obtained in step 2) for each tested subfunction. This process ensures that the KVM implementation accurately reflects the behavior of the actual CPU instructions for the tested subfunctions. Suggested-by: Janosch Frank <frankja@linux.ibm.com> Signed-off-by: Hariharan Mari <hari55@linux.ibm.com> Reviewed-by: Janosch Frank <frankja@linux.ibm.com> Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com> Link: https://lore.kernel.org/r/20240823130947.38323-2-hari55@linux.ibm.com Signed-off-by: Janosch Frank <frankja@linux.ibm.com> Message-ID: <20240823130947.38323-2-hari55@linux.ibm.com> |
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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 reStructuredText 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.