[PATCH v3 1/2] support: Add support_next_to_fault_before support function

[Tulio Magno Quites Machado Filho]

Frédéric Bérat <fberat@redhat.com> writes:

> Refactor the support_next_to_fault and add the
> support_next_to_fault_before method returns a buffer with a protected
> page before it, to be able to test buffer underflow accesses.

LGTM

Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@redhat.com>

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Tulio Magno