arm64: mm: add set_memory_valid()

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This function validates and invalidates PTE entries, and will be utilized
in kdump to protect loaded crash dump kernel image.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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AKASHI Takahiro 2017-04-03 11:24:33 +09:00 • committed by Catalin Marinas

parent 764b51ead1

commit 9b0aa14e31

2 changed files with 10 additions and 6 deletions

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1

arch/arm64/include/asm/cacheflush.h

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15

arch/arm64/mm/pageattr.c

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