[PATCH v11 7/9] arm64/kasan: add and use kasan_map_populate()

Pavel Tatashin pasha.tatashin at oracle.com
Fri Oct 13 09:00:27 PDT 2017


BTW, don't we need the same aligments inside for_each_memblock() loop?

How about change kasan_map_populate() to accept regular VA start, end
address, and convert them internally after aligning to PAGE_SIZE?

Thank you,
Pavel


On Fri, Oct 13, 2017 at 11:54 AM, Pavel Tatashin
<pasha.tatashin at oracle.com> wrote:
>> Thanks for sharing the .config and tree. It looks like the problem is that
>> kimg_shadow_start and kimg_shadow_end are not page-aligned. Whilst I fix
>> them up in kasan_map_populate, they remain unaligned when passed to
>> kasan_populate_zero_shadow, which confuses the loop termination conditions
>> in e.g. zero_pte_populate and the shadow isn't configured properly.
>
> This makes sense. Thank you. I will insert these changes into your
> patch, and send out a new series soon after sanity checking it.
>
> Pavel



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