Re: [Qemu-devel] [RFC PATCH V7 00/19] Multithread TCG.

[Benjamin Herrenschmidt]

On Tue, 2015-08-11 at 10:29 +0100, Peter Maydell wrote:
> Is it possible in some of these combinations to use the load-acquire
> and store-release instructions rather than explicit barriers?
> (ARMv8 has those, which I think should be slightly less heavyweight
> than explicit barriers everywhere, if the semantics line up.)

Possibly though I suppose starting with a simple barrier and then adding
more fine-grained ones to TCG might be a workable path. IE, it shouldn't
be too hard.

The problem of course is that not 2 architecture have exactly the same
semantics :-)

Cheers,
Ben.