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c118cead07
KVM allows userspace to specify a PMU version for the guest by writing to the corresponding ID registers. Currently the validation of these writes is done manuallly, but there's no reason we can't switch over to the generic sanitisation infrastructure. Start screening user writes through arm64_check_features() to prevent userspace from over-promising in terms of vPMU support. Leave the old masking in place for now, as we aren't completely ready to serve reads from the VM-wide values. Signed-off-by: Jing Zhang <jingzhangos@google.com> Link: https://lore.kernel.org/r/20230609190054.1542113-9-oliver.upton@linux.dev [Oliver: split off from monster patch, cleaned up handling of NI vPMU values, wrote commit description] Signed-off-by: Oliver Upton <oliver.upton@linux.dev> |
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| io_uring | ||
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| .clang-format | ||
| .cocciconfig | ||
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| README | ||
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.