powerpc/mm: Dump linux pagetables

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Useful to be able to dump the kernels page tables to check permissions
and memory types - derived from arm64's implementation.

Add a debugfs file to check the page tables. To use this the PPC_PTDUMP
config option must be selected.

Signed-off-by: Rashmica Gupta <rashmicy@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Rashmica Gupta 2016-05-27 15:48:59 +10:00 • committed by Michael Ellerman

parent 8f272a5dd6

commit 8eb07b1870

3 changed files with 453 additions and 0 deletions

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12

arch/powerpc/Kconfig.debug

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1

arch/powerpc/mm/Makefile

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440

arch/powerpc/mm/dump_linuxpagetables.c

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