Re: [Xen-devel] [PATCH v3 8/8] x86/hvm: serialize trap injecting producer and consumer

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 12/01/17 14:58, Paul Durrant wrote:
> Since injection works on a remote vCPU, and since there's no
> enforcement of the subject vCPU being paused, there's a potential race
> between the producing and consuming sides. Fix this by leveraging the
> vector field as synchronization variable.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
> [re-based]
> Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
> ---
> Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

This looks fairly unrelated to the other dm changes.  Given that it is a
backport candidate, should it be pulled ahead of the move to dm.c?  (I
can make this happen on commit if we are in agreement).

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