2023-12-14 05:57:01

by Nicholas Miehlbradt

Subject: [PATCH 13/13] powerpc: Enable KMSAN on powerpc

Enable KMSAN in the Kconfig.

Signed-off-by: Nicholas Miehlbradt <[email protected]>
---
arch/powerpc/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index e33e3250c478..71cc7d2a0a72 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -217,6 +217,7 @@ config PPC
select HAVE_ARCH_KASAN_VMALLOC if HAVE_ARCH_KASAN
select HAVE_ARCH_KCSAN
select HAVE_ARCH_KFENCE if ARCH_SUPPORTS_DEBUG_PAGEALLOC
+ select HAVE_ARCH_KMSAN if PPC64
select HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET
select HAVE_ARCH_WITHIN_STACK_FRAMES
select HAVE_ARCH_KGDB
--
2.40.1

2023-12-14 09:27:41

by Christophe Leroy

Subject: Re: [PATCH 13/13] powerpc: Enable KMSAN on powerpc

Le 14/12/2023 à 06:55, Nicholas Miehlbradt a écrit :
> Enable KMSAN in the Kconfig.
>
> Signed-off-by: Nicholas Miehlbradt <[email protected]>
> ---
> arch/powerpc/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index e33e3250c478..71cc7d2a0a72 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -217,6 +217,7 @@ config PPC
> select HAVE_ARCH_KASAN_VMALLOC if HAVE_ARCH_KASAN
> select HAVE_ARCH_KCSAN
> select HAVE_ARCH_KFENCE if ARCH_SUPPORTS_DEBUG_PAGEALLOC
> + select HAVE_ARCH_KMSAN if PPC64

You said in cover letter you are doing it for "pseries le guests".

Will it also work on BE and also on nohash/64 ?

> select HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET
> select HAVE_ARCH_WITHIN_STACK_FRAMES
> select HAVE_ARCH_KGDB