riscv: add ARCH_SUPPORTS_DEBUG_PAGEALLOC support

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ARCH_SUPPORTS_DEBUG_PAGEALLOC provides a hook to map and unmap
pages for debugging purposes. Implement the __kernel_map_pages
functions to fill the poison pattern.

Signed-off-by: Zong Li <zong.li@sifive.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

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Zong Li 2020-03-10 00:55:38 +08:00 • committed by Palmer Dabbelt

parent 395a21ff85

commit 5fde3db5eb

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3

arch/riscv/Kconfig

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13

arch/riscv/mm/pageattr.c

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