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d7255959b6
Currently, kho_fill_kimage() checks kho_out.finalized and returns early if KHO is not yet finalized. This enforces a strict ordering where userspace must finalize KHO *before* loading the kexec image. This is restrictive, as standard workflows often involve loading the target kernel early in the lifecycle and finalizing the state (FDT) only immediately before the reboot. Since the KHO FDT resides at a physical address allocated during boot (kho_init), its location is stable. We can attach this stable address to the kimage regardless of whether the content has been finalized yet. Relax the check to only require kho_enable, allowing kexec_file_load to proceed at any time. Link: https://lkml.kernel.org/r/20251114190002.3311679-12-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> |
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| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
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| README | ||
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.