Re: [PATCH 10/13] powerpc: Define KMSAN metadata address ranges for vmalloc and ioremap

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Nicholas Miehlbradt <nicholas@xxxxxxxxxxxxx> writes:

> Splits the vmalloc region into four. The first quarter is the new
> vmalloc region, the second is used to store shadow metadata and the
> third is used to store origin metadata. The fourth quarter is unused.
>

Do we support KMSAN for both hash and radix? If hash is not supported
can we then using radix.h for these changes?

> Do the same for the ioremap region.
>
> Module data is stored in the vmalloc region so alias the modules
> metadata addresses to the respective vmalloc metadata addresses. Define
> MODULES_VADDR and MODULES_END to the start and end of the vmalloc
> region.
>
> Since MODULES_VADDR was previously only defined on ppc32 targets checks
> for if this macro is defined need to be updated to include
> defined(CONFIG_PPC32).

-aneesh




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