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25ef059e8b
Yell if kvm_pi_update_irte() is reached without an in-kernel local APIC, as kvm_arch_irqfd_allowed() should prevent attaching an irqfd and thus any and all postable IRQs to an APIC-less VM. Link: https://lore.kernel.org/r/20250611224604.313496-53-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.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 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.