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PENDBASER and PROPBASER define the outer caching mode for LPI tables. The memory backing them may not be outer sharable, so we mark them as nC by default. This however, breaks Windows on ARM which only accepts SameAsInner or RaWaWb as values for outer cachability. We do today already allow the outer mode to be set to SameAsInner explicitly, so the easy fix is to default to that instead of nC for situations when an OS asks for a not fulfillable cachability request. This fixes booting Windows in KVM with vgicv3 and ITS enabled for me. Signed-off-by: Alexander Graf <graf@amazon.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20200701140206.8664-1-graf@amazon.com |
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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.