[aarch64-port-dev ] ZeroTLAB and block zeroing

[Andrew Haley]

On 25/10/17 23:55, Jasty, Ananth wrote:

> Iirc the correctness was due to not firing enough barriers after the
> zva. Throwing a dsb sy after the zeroes should be conservative until
> we've found the proper ordering (1 dmb st should really cover
> everything but we were young and naive back then).

I'd love to see the justification for that.  There's no warning about
DC ZVA needing magic barriers in the architecture spec.

-- 
Andrew Haley
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
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