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Andrew Jones <ajones@ventanamicro.com> says: In order for usermode to issue cbo.zero, it needs privilege granted to issue the extension instruction (patch 2) and to know that the extension is available and its block size (patch 3). Patch 1 could be separate from this series (it just fixes up some error messages), patches 4-5 convert the hwprobe selftest to a statically-linked, TAP test and patch 6 adds a new hwprobe test for the new information as well as testing CBO instructions can or cannot be issued as appropriate. * b4-shazam-merge: RISC-V: selftests: Add CBO tests RISC-V: selftests: Convert hwprobe test to kselftest API RISC-V: selftests: Statically link hwprobe test RISC-V: hwprobe: Expose Zicboz extension and its block size RISC-V: Enable cbo.zero in usermode RISC-V: Make zicbom/zicboz errors consistent Link: https://lore.kernel.org/r/20230918131518.56803-8-ajones@ventanamicro.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.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.