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Re: [PATCH v2 4/5] x86_64/mm: map and unmap page tables in destroy_compat_m2p_mapping

On 08.04.2020 15:36, Hongyan Xia wrote:
> From: Wei Liu <wei.liu2@xxxxxxxxxx>
> Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
> Signed-off-by: Hongyan Xia <hongyxia@xxxxxxxxxx>
> ---
> Changed in v2:
> - there is pretty much no point in keeping l3_ro_mpt mapped, just fetch
>   the l3e instead, which also cleans up the code.

Even better, there's no need to do any mapping her at all. I've
posted a pair of patches, the first of which can be seen as a
suggested replacement for the one here.




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