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| author | Daniel Axtens <dja@axtens.net> | 2022-05-18 20:04:12 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-05-22 15:58:29 +1000 |
| commit | 60e832def18de7a0753393034c6ae459b3bee70a (patch) | |
| tree | dc814be8efac33b780fe0eef249abe82d310b8f1 /Documentation/powerpc | |
| parent | 84ade0a6655bee803d176525ef457175cbf4df22 (diff) | |
| download | linux-next-60e832def18de7a0753393034c6ae459b3bee70a.tar.gz | |
kasan: Document support on 32-bit powerpc
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
Diffstat (limited to 'Documentation/powerpc')
| -rw-r--r-- | Documentation/powerpc/kasan.txt | 12 |
1 files changed, 12 insertions, 0 deletions
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. |