On Fri, Jun 24, 2016 at 06:13:14AM -0700, Nadav Amit wrote:
> According to the manual: "Hardware access to ... invalidation queue ...
> are always coherent."
>
> Remove unnecassary clflushes accordingly.
It is one thing what the spec says and another how hardware really
behaves. Have you tested this on (potentially really old) VT-d machines
to make sure the spec is _always_ right here?
Joerg
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