Re: [Qemu-devel] [RFC v3 PATCH 4/5] mttcg: Implement implicit ordering semantics

2017-09-01 Thread Emilio G. Cota
On Tue, Aug 29, 2017 at 02:33:12 -0400, Pranith Kumar wrote: > Currently, we cannot use mttcg for running strong memory model guests > on weak memory model hosts due to missing ordering semantics. > > We implicitly generate fence instructions for stronger guests if an This confused me. By "We imp

Re: [Qemu-devel] [RFC v3 PATCH 4/5] mttcg: Implement implicit ordering semantics

2017-08-29 Thread Richard Henderson
On 08/28/2017 11:33 PM, Pranith Kumar wrote: > Currently, we cannot use mttcg for running strong memory model guests > on weak memory model hosts due to missing ordering semantics. > > We implicitly generate fence instructions for stronger guests if an > ordering mismatch is detected. We generate