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| author | AKASHI Takahiro <takahiro.akashi@linaro.org> | 2017-04-03 02:24:33 (GMT) |
|---|---|---|
| committer | AKASHI Takahiro <takahiro.akashi@linaro.org> | 2017-06-08 09:44:30 (GMT) |
| commit | 3f4224f2f566c451c6a8ca5127df096a696c30cf (patch) | |
| tree | ee53138344312fd2f13bdcd54eeff1d6ba1117bd /arch/arm64/include | |
| parent | 98ffd933c1e5f0a55ebd1ae9c1c5741492050be4 (diff) | |
| download | linux-3f4224f2f566c451c6a8ca5127df096a696c30cf.tar.xz | |
arm64: mm: add set_memory_valid()
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>
Diffstat (limited to 'arch/arm64/include')
| -rw-r--r-- | arch/arm64/include/asm/cacheflush.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/cacheflush.h b/arch/arm64/include/asm/cacheflush.h index 2e5fb97..1547876 100644 --- a/arch/arm64/include/asm/cacheflush.h +++ b/arch/arm64/include/asm/cacheflush.h @@ -149,5 +149,6 @@ int set_memory_ro(unsigned long addr, int numpages); int set_memory_rw(unsigned long addr, int numpages); int set_memory_x(unsigned long addr, int numpages); int set_memory_nx(unsigned long addr, int numpages); +int set_memory_valid(unsigned long addr, unsigned long size, int enable); #endif |