Re: [PATCH 1/3] powerpc: implement barrier primitives

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On Wed, Jun 17, 2015 at 10:43:48AM +0100, Andre Przywara wrote:
> Instead of referring to the Linux header including the barrier
> macros, copy over the rather simple implementation for the PowerPC
> barrier instructions kvmtool uses. This fixes build for powerpc.
> 
> Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx>
> ---
> Hi,
> 
> I just took what kvmtool seems to have used before, I actually have
> no idea if "sync" is the right instruction or "lwsync" would do.
> Would be nice if some people with PowerPC knowledge could comment.

I *think* we can use lwsync for rmb and wmb, but would want confirmation
from a ppc guy before making that change!

Will
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