Re: [Xen-devel] [PATCH 19/20] xen/arm: Pair call to set_fixmap with call to clear_fixmap in copy_from_paddr

[Andrii Anisov <andrii.anisov@xxxxxxxxx>]

On 22.04.19 19:49, Julien Grall wrote:
> At the moment, set_fixmap may replace a valid entry without following
> the break-before-make sequence. This may result to TLB conflict abort.
>
> Rather than dealing with Break-Before-Make in set_fixmap, every call to
> set_fixmap is paired with a call to clear_fixmap.
>
> Signed-off-by: Julien Grall <julien.grall@xxxxxxx>
> ---
Reviewed-by: Andrii Anisov <andrii_anisov@xxxxxxxx>

--
Sincerely,
Andrii Anisov.

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