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arm64: mm: Add definitions to support 5 levels of paging

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Add the required types and descriptor accessors to support 5 levels of
paging in the common code. This is one of the prerequisites for
supporting 52-bit virtual addressing with 4k pages.

Note that this does not cover the code that handles kernel mappings or
the fixmap.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20240214122845.2033971-76-ardb+git@google.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Ard Biesheuvel 2024-02-14 13:29:17 +01:00 • committed by Catalin Marinas
commit a6bbf5d4d9
6 changed files with 188 additions and 9 deletions
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