7d34849413
The IPI interrupt is a special case of the XIVE IRQ domain. When mapping and unmapping the interrupts in the Linux interrupt number space, the HW interrupt number 0 (XIVE_IPI_HW_IRQ) is checked to distinguish the IPI interrupt from other interrupts of the system. Simplify the XIVE interrupt domain by introducing a specific domain for the IPI. Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210331144514.892250-3-clg@kaod.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 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.