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commitfbe6183998upstream. This reverts commit8d48bf8206. It turned out to be a bad idea as it broke supplying mem= cmdline parameters due to parse_memopt() requiring preparatory work like setting up the e820 table in e820__memory_setup() in order to be able to exclude the range specified by mem=. Pulling that up would've broken Xen PV again, see threads at https://lkml.kernel.org/r/20210920120421.29276-1-jgross@suse.com due to xen_memory_setup() needing the first reservations in early_reserve_memory() - kernel and initrd - to have happened already. This could be fixed again by having Xen do those reservations itself... Long story short, revert this and do a simpler fix in a later patch. Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lore.kernel.org/r/20211213112757.2612-3-bp@alien8.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.