From 60e832def18de7a0753393034c6ae459b3bee70a Mon Sep 17 00:00:00 2001 From: Daniel Axtens Date: Wed, 18 May 2022 20:04:12 +1000 Subject: kasan: Document support on 32-bit powerpc KASAN is supported on 32-bit powerpc and the docs should reflect this. Suggested-by: Christophe Leroy Signed-off-by: Daniel Axtens Signed-off-by: Paul Mackerras Reviewed-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/YoTEnMLrnd64j0w5@cleo --- Documentation/powerpc/kasan.txt | 12 ++++++++++++ 1 file changed, 12 insertions(+) create mode 100644 Documentation/powerpc/kasan.txt (limited to 'Documentation/powerpc') diff --git a/Documentation/powerpc/kasan.txt b/Documentation/powerpc/kasan.txt new file mode 100644 index 000000000000..26bb0e8bb18c --- /dev/null +++ b/Documentation/powerpc/kasan.txt @@ -0,0 +1,12 @@ +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. -- cgit v1.2.3