arm64: kernel: move identity map out of .text mapping

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Reorganize the ID map slightly so that only code that is executed with
the MMU off or via the 1:1 mapping remains. This allows us to move the
identity map out of the .text segment, as it will no longer need
executable permissions via the kernel mapping.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20230111102236.1430401-3-ardb@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Ard Biesheuvel 2023-01-11 11:22:32 +01:00 • committed by Catalin Marinas

parent 82e4958800

commit af7249b317

3 changed files with 16 additions and 16 deletions

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28

arch/arm64/kernel/head.S

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arch/arm64/kernel/vmlinux.lds.S

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arch/arm64/mm/proc.S

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