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kasan: Document support on 32-bit powerpc

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KASAN is supported on 32-bit powerpc and the docs should reflect this.

Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/YoTEnMLrnd64j0w5@cleo
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Daniel Axtens 2022-05-18 20:04:12 +10:00 committed by Michael Ellerman
parent 84ade0a665
commit 60e832def1
1 changed files with 12 additions and 0 deletions
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Documentation/powerpc/kasan.txt Normal file
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KASAN is supported on powerpc on 32-bit only.
32 bit support
==============
KASAN is supported on both hash and nohash MMUs on 32-bit.
The shadow area sits at the top of the kernel virtual memory space above the
fixmap area and occupies one eighth of the total kernel virtual memory space.
Instrumentation of the vmalloc area is optional, unless built with modules,
in which case it is required.