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Currently, the serialized memory map is tracked via kho_out.preserved_mem_map and copied to the FDT during finalization. This double tracking is redundant. Remove preserved_mem_map from kho_out. Instead, maintain the physical address of the head chunk directly in the preserved-memory-map FDT property. Introduce kho_update_memory_map() to manage this property. This function handles: 1. Retrieving and freeing any existing serialized map (handling the abort/retry case). 2. Updating the FDT property with the new chunk address. This establishes the FDT as the single source of truth for the handover state. Link: https://lkml.kernel.org/r/20251114190002.3311679-9-pasha.tatashin@soleen.com Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com> Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org> Reviewed-by: Pratyush Yadav <pratyush@kernel.org> Cc: Alexander Graf <graf@amazon.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Baoquan He <bhe@redhat.com> Cc: Coiby Xu <coxu@redhat.com> Cc: Dave Vasilevsky <dave@vasilevsky.ca> Cc: Eric Biggers <ebiggers@google.com> Cc: Kees Cook <kees@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.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 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.