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...and provide an explicit name for the constraint. Naming the input constraint makes the code self-documenting and also avoids the fragility of numerically referring to constraints, e.g. %4 breaks badly whenever the constraints are modified. Explicitly using RDX was inherited from vCPU-run, i.e. completely arbitrary. Even vCPU-run doesn't truly need to explicitly use RDX, but doing so is more robust as vCPU-run needs tight control over its register usage. Note that while the naming "conflict" between host_rsp and HOST_RSP is slightly confusing, the former will be renamed slightly in a future patch, at which point HOST_RSP is absolutely what is desired. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Reviewed-by: Jim Mattson <jmattson@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.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.