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069a05e535
As VNCR_EL2.BADDR contains a VA, it is bound to trigger faults. These faults can have multiple source: - We haven't mapped anything on the host: we need to compute the resulting translation, populate a TLB, and eventually map the corresponding page - The permissions are out of whack: we need to tell the guest about this state of affairs Note that the kernel doesn't support S1POE for itself yet, so the particular case of a VNCR page mapped with no permissions or with write-only permissions is not correctly handled yet. Reviewed-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20250514103501.2225951-10-maz@kernel.org Signed-off-by: Marc Zyngier <maz@kernel.org>
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.