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8c694f557f
Currently, KVM hides the STALL_SLOT event for guests if the host PMU version is PMUv3p4 or newer, as PMMIR_EL1 is handled as RAZ for the guests. But, this should be based on the guests' PMU version (instead of the host PMU version), as an older PMU that doesn't support PMMIR_EL1 could support the STALL_SLOT event, according to the Arm ARM. Exposing the STALL_SLOT event without PMMIR_EL1 won't be very useful anyway though. Stop advertising the STALL_SLOT event for guests unconditionally, rather than fixing or keeping the inaccurate checking to advertise the event for the case, where it is not very useful. Suggested-by: Oliver Upton <oliver.upton@linux.dev> Signed-off-by: Reiji Watanabe <reijiw@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230819043947.4100985-4-reijiw@google.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.