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If a PPI interrupt is forwarded to a guest, skip the deactivate and only EOI. Rely on the guest deactivating both the virtual and physical interrupts (due to ICH_LRx_EL2.HW being set) later on as part of handling the injected interrupt. This mimics the behaviour seen on native GICv3. This is part of adding support for the GICv3 compatibility mode on a GICv5 host. Reviewed-by: Lorenzo Pieralisi <lpieralisi@kernel.org> Co-authored-by: Timothy Hayes <timothy.hayes@arm.com> Signed-off-by: Timothy Hayes <timothy.hayes@arm.com> Signed-off-by: Sascha Bischoff <sascha.bischoff@arm.com> Link: https://lore.kernel.org/r/20250627100847.1022515-2-sascha.bischoff@arm.com Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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.