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ad93c1a7c0
Assert that IRQs are disabled when turning off virtualization in an emergency. KVM enables hardware via on_each_cpu(), i.e. could re-enable hardware if a pending IPI were delivered after disabling virtualization. Remove a misleading comment from emergency_reboot_disable_virtualization() about "just" needing to guarantee the CPU is stable (see above). Reviewed-by: Kai Huang <kai.huang@intel.com> Link: https://lore.kernel.org/r/20230721201859.2307736-6-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 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.