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KVM takes over the guest's software step state machine if the VMM is debugging the guest, but it does the save/restore fiddling for every guest entry. Note that the only constraint on host usage of software step is that the guest's configuration remains visible to userspace via the ONE_REG ioctls. So, we can cut down on the amount of fiddling by doing this at load/put instead. Tested-by: James Clark <james.clark@linaro.org> Signed-off-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20241219224116.3941496-16-oliver.upton@linux.dev 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.