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.
Oliver Upton
authored
This reverts commits 99101dda and b80b701d. Linus reports that the sysreg reserved bit checks in KVM have led to build failures, arising from commit fdd867fe ("arm64/sysreg: Add register fields for ID_AA64DFR1_EL1") giving meaning to fields that were previously RES0. Of course, this is a genuine issue, since KVM's sysreg emulation depends heavily on the definition of reserved fields. But at this point the build breakage is far more offensive, and the right course of action is to revert and retry later. All of these build-time assertions were on by default before commit 99101dda ("KVM: arm64: Make build-time check of RES0/RES1 bits optional"), so deliberately revert it all atomically to avoid introducing further breakage of bisection. Link: https://lore.kernel.org/all/CAHk-=whCvkhc8BbFOUf1ddOsgSGgEjwoKv77=HEY1UiVCydGqw@mail.gmail.com/ Acked-by:Marc Zyngier <maz@kernel.org> Signed-off-by:
Oliver Upton <oliver.upton@linux.dev> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>